Connection system, read-out device for a connection system, and validation method for a connection system

Abstract

The invention relates to a connection system (1) comprising a first component (2) having a first connection portion (3), and a second component (4) having a second connection portion (5) which can be connected to the first connection portion (2), wherein a first characteristic feature (6) is provided on an outer circumferential surface of the first component (2) and a second characteristic feature (7) is provided on an outer circumferential surface of the second component (4), wherein the characteristic features (6, 7) can be optically detected by a read-out device (8), and wherein the first characteristic feature (6) and the second characteristic feature (7) are arranged in a defined geometric relationship (R) to one another in a properly connected state of the first and second connecting portion (3, 5).

Description

[0001] CONNECTION SYSTEM, READING DEVICE FOR A CONNECTION SYSTEM AND VALIDATION METHOD FOR A CONNECTION SYSTEM

[0002] The invention relates to a connection system comprising a first component with a first connection section and a second component with a second connection section that can be connected to the first connection section. Furthermore, the invention relates to a readout device for such a connection system and a method for validating a connection process performed using such a connection system.

[0003] Connection systems are used in many technical applications and serve to connect two components, for example, with a positive or non-positive fit. A special case are connection systems for creating a fluid connection. These serve to connect two fluid-carrying components, for example, pipes or hoses (generally subsumed under fluid lines) for liquid or gaseous fluids. Such connection systems are used, for example, in the sanitary sector, in industrial plants or in the automotive industry, etc. To avoid leaks, it is necessary that the connection is made correctly. Until now, this was usually ensured by the deployment of trained personnel who inspected the connection system after connection, for example, visually or tactilely.However, such human inspection is prone to errors, and reliability is naturally subject to significant fluctuations. Furthermore, visual inspection may not always be possible, for example, due to poor accessibility in confined spaces.

[0004] The object of the present invention was therefore to simplify the testing and documentation of generic connection systems.

[0005] This object is achieved by the connection system mentioned at the outset in that a first characteristic feature is provided on an outer circumferential surface of the first component and a second characteristic feature is provided on an outer circumferential surface of the second component, wherein the characteristic features are optically detectable by a readout device, and in that the first characteristic feature and the second characteristic feature are arranged in a defined geometric relationship to one another in a properly connected state of the first and second connection from the section onwards. This makes it possible to carry out an automated check, by taking an image and evaluating the image by a readout device, to determine whether the properly connected state of the connection system has been correctly established.The geometric relation can, for example, include a distance between the features in one or more directions and / or an angle between the features. In the simplest case, the relation could, for example, include a distance between two features in a specified connection direction, e.g., the insertion direction. No special expertise is required to test the connection; even untrained users can easily perform the test.

[0006] The second component can also comprise a third connecting section, and the connecting system can comprise a third component with a fourth connecting section that can be connected to the third connecting section, wherein a third characteristic feature is provided on an outer circumferential surface of the third component, which is optically detectable by the reading device, and wherein the third characteristic feature and the second characteristic feature or a further characteristic feature of the second component are arranged in a defined geometric relationship to one another when the third and fourth connecting sections are connected as intended. This expands the area of ​​application to include multi-part connecting systems.

[0007] Preferably, the first connecting section and the second connecting section are complementary to one another and / or the third connecting section and the fourth connecting section are complementary to one another. By complementary is meant that the associated connecting sections supplement one another. For example, one connecting section forms a receiving space into which the corresponding connecting section can be inserted. Preferably, the first connecting section and the fourth connecting section are of the same type or identical design and / or the second connecting section and the third connecting section are of the same type or identical design. Similar here means that the connecting sections are functionally identical, but may differ in their dimensions. This can, for example, provide a standardized connection system.

[0008] Preferably, the first characteristic feature is arranged on the first component and the second characteristic feature is arranged on the second component in such a way that they can be detected by the readout device in a normal projection when the first and second connection sections are connected. Alternatively or additionally, the third characteristic feature of the third component and the second characteristic feature or the further characteristic feature of the second component can be arranged such that they can be detected by the readout device in a normal projection when the third and fourth connection sections are connected. Particularly preferably, all characteristic features of the connection system are arranged such that they can be detected by the readout device in the same normal projection.It is therefore sufficient to take only one image, since all features are captured and can be evaluated in one image.

[0009] The characteristic features preferably each comprise at least one of the following features: a defined surface structure, a defined color marking, a defined optical target, a machine-readable code, preferably a QR code, barcode or data matrix code. The characteristic feature is thus designed such that it is optically detectable based on its shape and / or color and / or structure. Information about the connection system, in particular a target value of the associated geometric relation, is preferably stored in the machine-readable code of at least one feature. As a result, the target value, for example a target value of a distance, is automatically available and can be compared with an actual value that is recorded based on the characteristic features.

[0010] According to an advantageous embodiment, the connection system is designed to establish a fluidic connection, wherein the first component, the second component, and optionally the third component each comprise a fluid-conducting component. Particularly preferably, the fluid-conducting component of the first component and optionally the fluid-conducting component of the third component each comprise a plug connector, and the fluid-conducting component of the second component comprises a pipe socket. As a result, the invention can be used, for example, in the applications mentioned above for checking a connection process.

[0011] The connecting section of the plug connector preferably comprises a coupling sleeve that encloses a receiving space for receiving the corresponding connecting section of the pipe socket, wherein a locking device is provided on the coupling sleeve that is designed to cooperate with the connecting section of the pipe socket for axially positive locking. For example, a retaining projection or a retaining groove can be provided on the connecting section of the pipe socket, and the locking device can comprise a locking clip that projects radially into the receiving space of the coupling sleeve to cooperate with the retaining projection or the retaining groove for locking. As a result, the invention can be advantageously used in a plug connector of a preferred embodiment.With such connectors, the connection process is carried out simply by axial insertion, so it is particularly important to check that the connection is correct.

[0012] According to an advantageous embodiment, a press connection section for connection to a pipeline is provided at an end opposite the coupling sleeve, wherein the press connection section has a plastically deformable press sleeve which, when properly pressed, has a defined desired shape. Thus, by plastically deforming, in particular pressing, the press sleeve, a fixed connection to a pipeline can be established, i.e., one which cannot be released during intended use. Based on the defined and thus known desired shape, a suitable readout device can be used to check whether the press connection section is in the properly connected state.

[0013] A machine-readable code, preferably a QR code, barcode, or data matrix code, can be provided on an outer peripheral surface of the press-fit section. Information about the defined desired shape of the press sleeve is preferably stored in the machine-readable code. This allows the desired shape to be read by the reading device and used to check the condition of the press-fit section.

[0014] The object is further achieved with a readout device of the type mentioned at the outset in that the readout device comprises at least one camera, an evaluation unit and a display unit, and in that the evaluation unit is designed to determine an actual value of the geometric relationship of the characteristic features of the connection system from an image recorded by the camera, to compare the actual value with a target value and to generate a first validation result therefrom, and the display unit is designed to display the first validation result. Alternatively or additionally, the evaluation unit can be designed to determine an actual shape of the compression sleeve from an image recorded by the camera, to compare the actual shape with a target shape and to determine a second validation result therefrom, and the display unit can be designed to display the second validation result.The readout device according to the invention can be used to check very quickly and easily whether a connection system, in particular a connection system designed according to the invention, is in a correctly connected state, and the result can be displayed to a user in the form of the respective validation result. The validation result can, for example, be displayed in a simple form as a Boolean operator, i.e. true (e.g. correct connection detected) or false (e.g. no correct connection detected). The display can, for example, also be color-coded, e.g. green for "e.g. correct connection detected" and a suitable warning color such as red or orange for the result "no correct connection detected". The validation result can of course also contain further, possibly more complex information, such as a value-related deviation of the actual value from the target value.A tolerance range could also be specified or determinable, and deviations between the actual value and the target value within the tolerance range could be assessed as a proper connection. The readout device could, for example, also include a suitable user interface via which the readout device can be controlled. This allows a user to, for example, control the triggering of the camera and / or start the generation of a validation result. Information, such as additional comments or similar, could also be entered via the user interface, or available options could be selected, such as a stored type of connection system or similar.

[0015] The target value of the geometric relationship and / or the target shape of the compression sleeve can be stored in the readout device, preferably in a memory of the evaluation unit. The values ​​can thus be saved, for example, by the manufacturer and can no longer be changed. This can prevent manipulation of the validation result. For example, specific target values ​​could be assigned to different types of connection systems and the respective target value can, for example, be automatically activated by selecting a type of connection system and used to determine the validation result. The readout device can be designed as a mobile device, in particular a mobile phone, in particular a smartphone, or tablet computer. This enables simple handling, since smartphones in particular are very widespread and readily available.For example, suitable software can be implemented in the mobile device to perform the connection system test. The results can be saved on the mobile device and sent if necessary. This can simplify documentation, especially when testing multiple connection systems.

[0016] The evaluation unit can also be configured to read information from a machine-readable code, in particular a QR code, barcode, or data matrix code, of the characteristic features and / or to read information from a machine-readable code, in particular a QR code, barcode, or data matrix code, of the press connection section. The display unit can be configured to display the information read by the evaluation unit together with the respective validation result. The information can, for example, contain a type designation, dimensions, or other relevant parameters, e.g., permissible operating parameters, of the connection system.

[0017] The evaluation unit can further be configured to read a target value of the respective geometric relationship from the machine-readable code of at least one of the characteristic features and to use the read target value to determine the first validation result, and / or to read the target shape of the compression sleeve from the machine-readable code of the compression connection and to use the read target shape to determine the second validation result. This eliminates the need to access stored data; instead, the target shape or the target value can be read and processed directly on the respective connection system.

[0018] Preferably, the evaluation unit is configured to use an implemented image recognition model to recognize the characteristic features in the image captured by the camera and determine the actual value of the geometric relationship, and / or to recognize the compression sleeve in the image captured by the camera and determine the actual shape of the compression sleeve. This allows other features to be used in addition to machine-readable codes, such as a defined surface structure, a defined color scheme, etc. Such image recognition models are known in the art.

[0019] It may be advantageous if the readout device comprises a positioning unit, preferably a GPS module, for determining a location of the captured image, and if the display unit is configured to display and, if appropriate, store the determined location together with the first validation result and / or the second validation result and / or the information. This can facilitate documentation, since the corresponding validation results can also be displayed and preferably stored.

[0020] The problem is further solved with the method mentioned above through the following steps: capturing an image of the connection system using a camera, determining an actual value of the geometric relationship of the characteristic features and / or an actual shape of the compression sleeve from the captured image using an evaluation unit, comparing the actual value of the geometric relationship with a target value of the geometric relationship and generating a first validation result using the evaluation unit and / or comparing the actual shape of the compression sleeve with a target shape of the compression sleeve and generating a second validation result using the evaluation unit, and displaying the first validation result and / or the second validation result using a display unit and preferably storing and / or sending the respective validation result. This results in the advantages already described.

[0021] Advantageous embodiments of the method are specified in dependent claims 18 to 20.

[0022] For a better understanding of the invention, it is explained in more detail using the following figures.

[0023] They show in a highly simplified, schematic representation:

[0024] Fig. 1 is a perspective view of a connection system of an exemplary first embodiment of the invention as well as a readout device and a normal projection of the connection system, Fig. 2 is a normal projection of a connection system of an exemplary second embodiment in the connected state,

[0025] Fig. 3 shows a reading device in an exemplary embodiment of the invention.

[0026] By way of introduction, it should be noted that in the variously described embodiments, identical parts are provided with identical reference symbols or component designations. The disclosures contained throughout the description can be applied analogously to identical parts with identical reference symbols or component designations. Furthermore, the positional information chosen in the description, such as top, bottom, side, etc., refers to the directly described and illustrated figure, and these positional information must be applied analogously to the new position in the event of a change in position.

[0027] The connection system 1 shown in Fig. 1 comprises a first component 2 with a first connection section 3 and a second component 4 with a second connection section 5, which can be connected to the first connection section 2. The second component 4 also comprises a third connection section 9. Furthermore, the connection system 1 shown comprises an optional third component 10 with a fourth connection section 11, which can be connected to the third connection section 9 of the second component 4. The connection system 1 shown is an exemplary generic connection system that serves merely to illustrate the invention. A preferred structural embodiment is shown in Fig. 2.

[0028] The first connecting section 3 and the second connecting section 5 are complementary to one another here. In the same way, the third connecting section 9 and the fourth connecting section 11 are complementary to one another. The first connecting section 3 here has a cylindrical male section and the second connecting section 5 has a cylindrical female section into which the first connecting section 3 can be inserted to establish a connection. The third connecting section 9 here also has a cylindrical male section and the fourth connecting section 11 again has a cylindrical female section into which the third connecting section 9 can be inserted to establish a connection.

[0029] The first connecting section 3 and the fourth connecting section 11 are thus of similar design, and the second connecting section 5 and the third connecting section 9 are of similar design. "Similar" means that they comprise the same type of section (e.g., male or female), but the dimensions may vary.

[0030] A first characteristic feature 6 is provided on an outer peripheral surface of the first component 2, and a second characteristic feature 7 is provided on an outer peripheral surface of the second component 4. The characteristic features 6, 7 are optically detectable by a suitable readout device 8. In the example shown, a third characteristic feature 12 is also provided on an outer peripheral surface of the third component 10, which is also optically detectable by the readout device 8. A readout device 8 is indicated in Fig. 1. A preferred embodiment of the readout device 8 is described in more detail below with reference to Fig. 3.

[0031] The first characteristic feature 6 and the second characteristic feature 7 are arranged in a defined geometric relationship R1 to one another in a properly connected state of the first and second connection from section 3, 5. The third characteristic feature 12 and the second characteristic feature 7 are also arranged in a defined geometric relationship R2 to one another in a properly connected state of the third and fourth connection section 9, 11. Alternatively, it would also be conceivable for a further (not shown) characteristic feature to be provided on an outer circumferential surface of the second component 4 in addition to the second feature 7, which is arranged in a defined geometric relationship R2 to the third feature 12 in a properly connected state of the third and fourth connection from section 9, 11.

[0032] Within the scope of the present invention, the geometric relation RI, R2 is understood to mean a measurable geometric quantity, for example, a distance in a specified direction or an angle in a specific plane. Based on the geometric relation RI, it can be determined whether the first component 2 and the second component 4 are correctly arranged and aligned relative to one another. Based on the geometric relation R2, it can be determined whether the second component 4 and the third component 10 are correctly arranged and aligned relative to one another. Of course, a geometric relation RI, R2 could also encompass multiple distances and / or multiple angles, etc.In the illustrated embodiment, the first characteristic feature 6 is arranged on the first component 2 and the second characteristic feature 7 is arranged on the second component 4 in such a way that they can be detected by the readout device 8 in a normal projection P when the first and second connecting sections 3, 5 are connected. In the same way, the third characteristic feature 12 of the third component 10 and the second characteristic feature 7 of the second component 4 are arranged in such a way that they can be detected by the readout device 8 in a normal projection P when the third and fourth connections are connected from section 9, 11. If the second component 4 comprises a further feature (not shown), this would preferably be arranged in such a way that it would be detectable by the readout device 8 in a normal projection P together with the third feature 12.

[0033] In Fig. 1, all characteristic features 6, 7, 12 are arranged, by way of example, such that they can be detected by the readout device 8 in the same normal projection P. The normal projection P shown as an example in Fig. 1 shows the connection system 1 in the connected state. The geometric relations RI, R2 are shown here, by way of example, as distances between the centers of the features 6, 7, 12 in the axial direction, i.e., in the insertion direction.

[0034] The characteristic features 6, 7, 12 can, for example, each comprise at least one of the following features: a defined surface structure, a defined color marking, a defined optical target, a machine-readable code, preferably a QR code, barcode, or data matrix code. A machine-readable code is preferably used. This has the advantage that information I about the connection system 1 can be stored therein, for example, a target value of the associated geometric relation RI, R2.

[0035] Fig. 2 shows a normal projection P of a connection system 1 of a preferred embodiment in the connected state. The connection system 1 is designed to produce a fluidic connection, wherein the first component 2, the second component 4 and optionally the third component 10 each comprise a fluid-carrying component. The fluid-carrying component of the first component 2 and the fluid-carrying component of the third component 10 are each designed as a plug-in connector. The fluid-carrying component of the second component 4 is designed as a bent pipe socket. Of course, a straight design or any other shape would also be conceivable. In a known manner, a plug-in connector is generally understood to mean a component with which a connection can be produced by plugging in, i.e. without tools. The connection can be non-detachable as intended, i.e. permanent, or it can be detachable as intended.In the second case, a suitable release device can be provided which can be operated manually, preferably without tools.

[0036] The connecting sections 3, 11 of the plug connectors 2, 10 each comprise a coupling sleeve 13, which encloses a receiving space for receiving the corresponding connecting sections 5, 9 of the pipe socket 4. Furthermore, a locking device 14 is provided on each of the coupling sleeves 13, which is designed to interact with the connecting sections 5, 9 of the pipe socket 4 for axially positive locking. To establish a connection, the pipe socket 4 can first be inserted into the receiving space of a plug connector 2, 10 and then locked by the locking device 14. In addition to the axially positive locking, the locking device 14 could also be designed for positive locking in the circumferential direction. This would prevent or at most restrict rotation of the pipe socket 4 relative to the respective plug connector 2, 10.

[0037] Within the receiving space of the coupling sleeve 13, a seal (not visible in Fig.2) can also be provided, which seals the pipe socket 4 against the plug connector 2, 10.

[0038] Preferably, a retaining projection or a retaining groove is provided on the connecting section 5, 9 of the pipe socket 4, and the locking device 14 comprises a locking clamp that projects radially into the receiving space of the coupling sleeve 13 in order to cooperate with the retaining projection or the retaining groove for locking. The locking clamp is preferably elastically deformable in the radial direction. The locking clamp can, for example, have a substantially U-shaped profile that comprises two opposing legs that are connected via a web. A section of each of the legs can project into the receiving space, and the web can bear against the outer circumferential surface of the coupling sleeve 13 or a recess provided thereon. When the pipe socket 4 is inserted into the receiving space, the legs can be elastically pressed apart by the pipe socket 4 until they snap into place behind the retaining projection or in the retaining groove.The locking clamp can, for example, be made of a suitable spring steel.

[0039] Alternatively, however, a substantially rigid locking clamp could also be provided, for example one that is again substantially U-shaped and which is not or only very slightly elastically deformable during intended use. This means that the locking clamp, in particular the legs, cannot be deformed by the pipe socket 4 when it is inserted into the receiving space of the coupling sleeve 13. In a first step, the pipe socket 4 can first be inserted into the receiving space of the coupling sleeve 13 until a defined position is reached, e.g. a mechanical end stop. The locking clamp can then be pushed radially onto the coupling sleeve 13 so that the legs interact with the retaining projection or the retaining groove for positive locking. The locking clamp can be made, for example, from a suitable plastic or, if necessary, from metal.

[0040] The second characteristic feature 7 is provided in the form of a machine-readable code, in particular a QR code, on the outer circumferential surface of the socket 4. The first characteristic feature 6 is provided in the form of a machine-readable code, in particular a QR code, on the outer circumferential surface of the coupling sleeve 13 of the first connector 2, and the third characteristic feature 12 is provided in the form of a machine-readable code, in particular a QR code, on the outer circumferential surface of the coupling sleeve 13 of the second connector 10. The features 6, 7, 12 can, for example, be printed or possibly engraved. Of course, this is only an example, and one or more of the features could also be designed differently, as described above. For example,It is also conceivable that only one of the features 6, 7, 12 comprises a machine-readable code in which information of the connection system 1 is stored, for example, the target value of the geometric relations RI, R2. The other features could also be configured differently and do not necessarily have to contain information.

[0041] In the illustrated embodiment, the plug connectors 2, 10 each have a press-connection section 15 for connecting to a pipeline 16 at an end opposite the coupling sleeve 13. The press-connection sections 15 each comprise a plastically deformable press sleeve 17, which can be pressed using a suitable pressing tool in order to connect the fluid line 16 to the respective plug connector 2, 10 in a substantially frictionally engaged manner. In the intended, pressed state, the press sleeve 17 has a defined and known characteristic desired shape. Fig. 2 shows the press sleeve 17 in the deformed state. The desired shape is symbolized here, for example, by the two convexly curved sections and the constricted regions adjacent to them. The desired shape can be detected by a suitable readout device 8.Of course, the illustration is only an example and the target shape could also have any other geometry.

[0042] A machine-readable code, preferably a QR code, barcode, or data matrix code, can be provided on an outer peripheral surface of the press-connection section 15. For example, information about the defined desired shape of the press sleeve 17 can be stored therein. The information can be read and processed by the reading device 8.

[0043] With reference to Fig.1 and Fig.3, a reading device 8 according to the invention of an exemplary embodiment for use with the described connection system 1 is described below.

[0044] The reading device 8 comprises at least one camera 18, an evaluation unit 19 connected to the camera 18 and a display unit 20 connected to the evaluation unit 19, as shown schematically in Fig.l.

[0045] In a simple embodiment, the camera 18 can be a commercially available digital camera, and possibly also a video camera or a 3D camera. The camera 18 can capture one or more images of the connection system 1. The captured image can, for example, contain the normal projection P of the connection system 1 shown in Fig. 1 and Fig. 2.

[0046] The evaluation unit 19 is designed to determine an actual value of the geometric relation RI, R2 of the characteristic features 6, 7, 12 of the connection system 1 from an image recorded by the camera 18. Furthermore, the evaluation unit 19 is designed to compare the determined actual value with a target value and to generate a first validation result VI therefrom. The evaluation unit 19 can comprise a computing unit with suitable hardware and / or software. To recognize the characteristic features 6, 7, 12 in the image recorded by the camera 18, a suitable image recognition model 23 is preferably implemented in the evaluation unit 19, as indicated in Fig. 3. Such image recognition models 23 are known in the prior art, which is why no detailed description is given here. The image recognition model 23 can, for example, be implemented in the computing unit in the form of software.The value unit 19, in particular the calculation unit, can determine the actual values ​​of the relations RI, R2 based on the features 6, 7, 12 detected by the image recognition model 23 and use them to generate the first validation result VI.

[0047] The evaluation unit 19 can further be configured to determine an actual shape of the compression sleeve 17 from an image captured by the camera 18, compare the actual shape with a desired shape, and determine a second validation result V2 therefrom. The actual shape of the compression sleeve 17 in the image captured by the camera 18 can again be detected using the image recognition model 23.

[0048] The display unit 20 is designed to display the first validation result VI and preferably also the second validation result V2. The display unit 20 can, for example, comprise a suitable display. Preferably, the display unit 20 comprises a touchscreen, which also serves as a user interface via which the readout device 8 can be operated. In a simple embodiment, the first validation result VI can, for example, only comprise the information "true" (in the sense of a correct connection) or "false" (in the sense of an incorrect connection). Alternatively or additionally, the first validation result VI could also contain the target value and the actual value of the geometric relation RI, R2 and preferably an "error" in the sense of a deviation between the target value and the actual value.Analogously, the second validation result V2 in a simple implementation could, for example, only include the information "true" (in the sense of a correct connection of the press-fit section 15) or "false" (in the sense of an incorrect connection of the press-fit section 15). A text field is indicated in Fig. 3 for each of the first validation result VI and the second validation result V2.

[0049] The target value of the respective geometric relation RI, R2 and preferably the target shape of the compression sleeve 17 can be stored, for example, in the readout device 8. The readout device 8, in particular the evaluation unit 19, can for this purpose have, for example, a suitable memory 21, as shown in Fig. 3. The readout device 8 could also have a suitable user interface by means of which the target value can be selected, e.g. the aforementioned touchscreen. However, other forms would also be conceivable, such as buttons. For example, it would be conceivable that, for example, a type and / or a standardized size of the connection system 1 can be selected via the user interface and that, depending on the selection, the target value is displayed or used for testing.

[0050] The evaluation unit 19 can further be designed to read out information I from a machine-readable code, in particular from a QR code, barcode, or data matrix code, of the characteristic features 6, 7, 12 and preferably also to read out information I from a machine-readable code, in particular from a QR code, barcode, or data matrix code, of the press-fit connection section 15. The display unit 20 can display the information I read out by the evaluation unit 19 together with the respective validation result VI, V2, as indicated in Fig. 3. The information I could, for example, contain information about the type and / or dimension of the connection system 1. The information I could also contain the target value of a geometric relation RI, R2.

[0051] According to an advantageous embodiment, the evaluation unit 19 is configured to read a target value of the respective geometric relation RI. R2 from the machine-readable code of at least one of the characteristic features 6, 7, 12 and to use the read target value to determine the first validation result VI. Analogously, the evaluation unit 19 can read the target shape of the compression sleeve 17 from the machine-readable code of the press-connection section 15 and use the read target shape to determine the second validation result V2. The read target value can be displayed, for example, as part of the first validation result VI or as supplementary information I.

[0052] The readout device 8 can also include a location unit 24, preferably a GPS module, for determining a location O of the captured image, and the display unit 20 can display the determined location O together with the first validation result VI and / or the second validation result V2 and / or the information I, as indicated in Fig. 3. Preferably, the determined location O is also stored in the readout device 8, for example, the memory 21, and can thus be used for later documentation purposes.

[0053] According to a preferred embodiment, the reading device 8 is designed as a mobile terminal 22, for example, as a mobile phone, in particular a smartphone, or tablet computer. The upper right-hand area of ​​Fig. 3 shows an example of a reading device 8 in the form of a smartphone. This advantageously allows all functions to be combined in a space-saving device. The use of a smartphone is advantageous, for example, for testing connection systems 1 in difficult-to-access locations. Validation software for testing the connection system 1 could be provided in the form of a suitable app.

[0054] For example, the geometric relation RI, R2 could be a distance, as indicated in Fig. 1. A target value for the distance could be, for example, 10 mm. The target value can be stored in the value unit 19 or could also be read out using the machine-readable code of one of the characteristic features 6, 7, 12. If, for example, the actual value of the distance determined by the readout device 8 is more than 10 mm, this can be evaluated as a faulty or improper connection and displayed accordingly as the first validation result VI. However, a tolerance range could also be specified or specifiable, and deviations between the target value and the actual value that lie within the tolerance range could be accepted.

[0055] A geometric relation RI, R2 could, for example, also include an angle. In the connection system according to Fig. 2, for example, the first relation RI could include an angle between the first feature 6 and the second feature 7 about the insertion axis. A deviation between the target value and the actual value of the angle corresponds to a relative rotation of the plug-in connector 2 and the nozzle 4. A distance between the first feature 6 and the second feature 7 in the radial direction could also be used alternatively or additionally. Checking the angular deviation can, for example, be advantageous in the case of angled or curved connection systems 1, since excessive angular deviations can, under certain circumstances, lead to tension in the entire piping system.The readout device 8 could also be configured to display the image captured by the camera 18, on the basis of which a validation result VI, V2 was determined, together with the validation result VI, V2 on the display unit 20. The image can thus serve as additional visual information and, for example, be incorporated into the documentation. An overall result of a completed check could, for example, contain the first validation result VI, the second validation result V2, the location O of the captured image, the captured image itself, and any additional information I about the connection system 1. It would also be conceivable for the user interface to provide, for example, the option of adding comments or notes on the respective check that the user deems relevant.The overall result or several such overall results can be stored, for example, in the readout device 8, in particular in the memory 21 of the evaluation unit 19.

[0056] Optionally, the readout device 8 could also have a suitable communication interface 25, by means of which data can be sent and, if necessary, received. In Fig. 3, for example, a wireless communication interface 25 is indicated. The wireless communication interface 25 can, for example, use a known communication standard, for example Bluetooth, infrared, mobile radio, WLAN, NFC (near field communication), etc. Via the communication interface 25, for example, target values ​​of the relations RI, R2 or target shapes of the compression sleeve 17 could be transmitted to the readout device 8, in particular the evaluation unit 19, and / or results of one or more checks could be sent. In this way, for example, several connection systems 1 could first be checked and the validation results VI, V2 (if necessary as an overall result) could be temporarily stored in the readout device 8.After the checks are completed, the stored results could be transferred via the communication interface 25, for example, to a computer. This allows for easy documentation of the checks. Mobile devices are advantageous in this regard, as they already have one or more communication interfaces 25.

[0057] Finally, the steps of a preferred method for validating a connection process performed using the connection system 1 described above are listed. In a first step, an image of the connection system 1 is captured using a camera 18.

[0058] In a second step, actual values ​​of the geometric relations RI, R2 of the characteristic features 6, 7, 12 are determined from the recorded image using an evaluation unit 19. Optionally, an actual shape of the compression sleeve 17 of the compression connection section 15 can also be determined from the recorded image using the evaluation unit 19.

[0059] In a third step, the determined actual values ​​are compared with the target values ​​of the geometric relation RI, R2 using the value unit 19, and a first validation result VI is determined from this. Optionally, the determined actual shape of the compression sleeve 17 can also be compared with a target shape using the value unit 19, and a second validation result V2 can be generated from this.

[0060] In a fourth step, the first validation result(s) VI and optionally the second validation result(s) V2 can be displayed by means of a display unit 20.

[0061] As already described, the evaluation unit 19 can, for example, use a target value of the geometric relations RI, R2 stored, in particular, in a memory 21 of the evaluation unit 19. Alternatively, the target value of the geometric relations RI, R2 can also be determined by means of the evaluation unit 19 from a machine-readable code, in particular a QR code, barcode, or data matrix code, of at least one of the characteristic features 6, 7, 12. In an analogous manner, the evaluation unit 19 can also use a stored target shape of the compression sleeve 17 or, alternatively, determine the target shape of the compression sleeve 17 from a machine-readable code provided on the press-connection section 15, in particular a QR code, barcode, or data matrix code.

[0062] Optionally, a location O of the recorded image can be determined by means of a locating unit 24, preferably a GPS module, and the determined location O can be displayed on the display unit 20 together with the first validation result(s) VI and, if applicable, with the second validation result(s) V2.

[0063] The steps of the method are preferably carried out with the readout device 8 described with reference to Fig. 3. The exemplary embodiments show possible embodiments, whereby it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather various combinations of the individual embodiments with one another are also possible and this variation possibility lies within the skill of the person skilled in this technical field due to the teaching of technical action by means of the objective invention.

[0064] The scope of protection is determined by the claims. However, the description and drawings must be used to interpret the claims. Individual features or combinations of features from the various embodiments shown and described may represent independent inventive solutions. The problem underlying these independent inventive solutions can be derived from the description.

[0065] All information on value ranges in this description is to be understood as including any and all sub-ranges thereof, e.g. the statement up to is to be understood as including all sub-ranges, starting from the lower limit and the upper limit, ie all sub-ranges begin with a lower limit of or greater and end with an upper limit of or less, e.g. up to ,, or , up to " or , up to .

[0066] For the sake of clarity, it should finally be pointed out that, in order to better understand the structure, some elements have been shown out of scale and / or enlarged and / or reduced in size.

[0067] Reference symbol list

[0068] 1 Connection system

[0069] 2 First component, connector

[0070] 3 First connection sab section

[0071] 4 Second component, pipe socket

[0072] 5 Second connecting section

[0073] 6 First characteristic feature

[0074] 7 Second characteristic feature

[0075] 8 Reading device

[0076] 9 Third connection section

[0077] 10 Third component, connector

[0078] 11 Fourth connecting section

[0079] 12 Third characteristic feature

[0080] 13 Coupling sleeve

[0081] 14 Locking device

[0082] 15 Press connection section

[0083] 16 Pipeline

[0084] 17 Press sleeve

[0085] 18 Camera

[0086] 19 Evaluation unit

[0087] 20 display unit

[0088] 21 storage

[0089] 22 Mobile device

[0090] 23 Image recognition model

[0091] 24 tracking unit

[0092] 25 Communication interface

[0093] R Geometric relation

[0094] O Place

[0095] I Information

[0096] PN ormalproj ektion

[0097] VI First validation result

[0098] V2 Second validation result

Claims

Patent claims 1. Connection system (1) comprising a first component (2) with a first connection section (3) and a second component (4) with a second connection section (5) which can be connected to the first connection section (2), characterized in that a first characteristic feature (6) is provided on an outer circumferential surface of the first component (2) and a second characteristic feature (7) is provided on an outer circumferential surface of the second component (4), wherein the characteristic features (6, 7) are optically detectable by a reading device (8), and in that the first characteristic feature (6) and the second characteristic feature (7) are arranged in a defined geometric relationship (R) to one another in a properly connected state of the first and second connection from section (3, 5).

2. Connection system (1) according to claim 1, characterized in that the second component (4) comprises a third connection section (9) and in that the connection system (1) comprises a third component (10) with a fourth connection section (11) which can be connected to the third connection section (9), wherein a third characteristic feature (12) is provided on an outer circumferential surface of the third component (10), which is optically detectable by the reading device (8), and in that the third characteristic feature (12) and the second characteristic feature (7) or a further characteristic feature of the second component (4) are arranged in a defined geometric relationship (R) to one another in a properly connected state of the third and fourth connection from section (9, 11).

3. Connection system (1) according to claim 1 or 2, characterized in that the first connection section (3) and the second connection section (5) are complementary to one another and / or the third connection section (9) and the fourth connection section (11) are complementary to one another and / or that the first connection section (3) and the fourth connection section (11) are of the same type or identical design and / or the second connection section (5) and the third connection section (9) are of the same type or identical design.

4. Connection system (1) according to one of claims 1 to 3, characterized in that the first characteristic feature (6) is arranged on the first component (2) and the second characteristic feature (7) is arranged on the second component (4) in such a way that they can be detected by the read-out device (8) in a normal projection (P) when the first and second connection sections (3, 5) are connected, and / or that the third characteristic feature (12) of the third component (10) and the second characteristic feature (7) or the further characteristic feature of the second component (4) are arranged in such a way that they can be detected by the read-out device (8) in a normal projection (P) when the third and fourth connection sections (9, 11) are connected, wherein preferably all characteristic features (6, 7, 12) are arranged in such a way that they can be detected by the read-out device (8) in the same normal projection (P).

5. Connection system (1) according to one of claims 1 to 4, characterized in that the characteristic features (6, 7, 12) each comprise at least one of the following features: a defined surface structure, a defined color marking, a defined optical target, a machine-readable code, preferably QR code, bar code or data matrix code, wherein preferably in the machine-readable code of at least one feature an item of information (I) about the connection system (1) is stored, in particular a target value of the associated geometric relation (R).

6. Connection system (1) according to one of claims 1 to 5, characterized in that the connection system (1) is designed to produce a fluidic connection, wherein the first component (2), the second component (4) and optionally the third component (10) each comprise a fluid-carrying component, wherein preferably the fluid-carrying component of the first component (2) and optionally the fluid-carrying component of the third component (10) each comprise a plug-in connector and the fluid-carrying component of the second component (4) comprises a pipe socket.

7. Connection system (1) according to claim 6, characterized in that the connecting section (3, 11) of the plug-in connector (2, 10) has a coupling sleeve (13) which encloses a receiving space for receiving the corresponding connecting section (5, 9) of the pipe socket (4), and in that on the coupling sleeve (13) a A locking device (14) is provided which is designed to cooperate with the connecting section (5, 9) of the pipe socket (4) for axially positive locking, wherein a holding projection or a holding groove is preferably provided on the connecting section (5, 9) of the pipe socket (4) and the locking device (14) comprises a locking clamp which projects in the radial direction into the receiving space of the coupling sleeve (13) in order to cooperate with the holding projection or the holding groove for locking.

8. Connection system (1) according to one of claims 1 to 7, characterized in that the plug connector (2, 10) has a press connection section (15) for connection to a pipeline (16) at an end opposite the coupling sleeve (13), wherein the press connection section (15) has a plastically deformable press sleeve (17) which has a defined desired shape in the intended pressed state.

9. Connection system (1) according to claim 8, characterized in that a machine-readable code, preferably a QR code, bar code or data matrix code, is provided on an outer peripheral surface of the press connection section (15), wherein the machine-readable code preferably stores information about the defined desired shape of the press sleeve (17).

10. Reading device (8) for a connection system (1) according to one of claims 1 to 9, characterized in that the reading device (8) comprises at least one camera (18), an evaluation unit (19) and a display unit (20), and that the evaluation unit (19) is designed to determine an actual value of the geometric relation (R) of the characteristic features (6, 7, 12) of the connection system (1) from an image recorded by the camera (18), to compare the actual value with a target value and to generate a first validation result (VI) therefrom, and the display unit (20) is designed to display the first validation result (VI) and / or that the evaluation unit (19) is designed to determine an actual shape of the press sleeve (17) from an image taken by the camera (18), to compare the actual shape with a desired shape and to determine a second validation result (V2) therefrom, and the display unit (20) is designed to display the second validation result (V2).

11. Reading device (8) according to claim 10, characterized in that the desired value of the geometric relation (R) and / or the desired shape of the compression sleeve (17) are stored in the reading device (8), preferably in a memory (21) of the evaluation unit (19).

12. Reading device (8) according to claim 10 or 11, characterized in that the reading device (8) is designed as a mobile terminal (22), in particular as a mobile phone or tablet computer.

13. Reading device (8) according to one of claims 10 to 12, characterized in that the evaluation unit (19) is designed to read out information (I) from a machine-readable code, in particular from a QR code, bar code or data matrix code, of the characteristic features (6, 7, 12) and / or to read out information (I) from a machine-readable code, in particular from a QR code, bar code or data matrix code, of the press-connection section (15) and that the display unit (20) is preferably designed to display the information (I) read out by the evaluation unit (19) together with the respective validation result (VI, V2).

14. Reading device (8) according to one of claims 10 to 13, characterized in that the evaluation unit (19) is designed to read out a target value of the respective geometric relation (R) from the machine-readable code of at least one of the characteristic features (6, 7, 12) and to use the read-out target value to determine the first validation result (VI) and / or to read out the target shape of the press sleeve (17) from the machine-readable code of the press connection section (15) and to use the read-out target shape to determine the second validation result (V2).

15. Reading device (8) according to one of claims 10 to 14, characterized in that the evaluation unit (19) is designed to recognize the characteristic features (6, 7, 12) in the image recorded by the camera (18) by means of an implemented image recognition model (23) and to determine the actual value of the geometric relation (R). determine and / or to recognize the press sleeve (17) in the image taken by the camera (18) and to determine the actual shape of the press sleeve.

16. Read-out device (8) according to one of claims 10 to 15, characterized in that the read-out device (8) comprises a locating unit (24), preferably a GPS module, for determining a location (O) of the recorded image and that the display unit (20) is designed to display the determined location (O) together with the first validation result (VI) and / or the second validation result (V2) and / or the information (I).

17. A method for validating a connection process carried out using a connection system (1) according to one of claims 1 to 9, characterized in that the following steps are carried out: - taking an image of the connection system (1) by means of a camera (18), - determining an actual value of the geometric relation (R) of the characteristic features (6, 7, 12) and / or an actual shape of the compression sleeve (17) from the recorded image by means of an evaluation unit (19), - comparing the actual value of the geometric relation (R) with a target value of the geometric relation (R) and generating a first validation result (VI) by means of the evaluation unit (19) and / or comparing the actual shape of the press sleeve (17) with a target shape of the press sleeve (17) and generating a second validation result (V2) by means of the evaluation unit (19), and - Displaying the first validation result (VI) and / or the second validation result (V2) by means of a display unit (20).

18. The method according to claim 17, characterized in that a target value of the geometric relation (R) stored in the evaluation unit (19), in particular a memory (21) of the evaluation unit (19), is used or the target value of the geometric relation (R) is determined by means of the evaluation unit (19) from a machine-readable code, in particular QR code, bar code or data matrix code, of at least one of the characteristic features (6, 7, 12) and / or that a target shape of the press sleeve (17) stored in the evaluation unit (19) is used or the target shape of the press sleeve (17) is determined by means of the evaluation unit (19) is determined from a machine-readable code provided on the press connection section (15), in particular a QR code, bar code or data matrix code.

19. The method according to claim 17 or 18, wherein a location (O) of the recorded image is determined by means of a locating unit (24), preferably a GPS module, and wherein the determined location (O) is displayed together with the first validation result and / or the second validation result by means of the display unit (20).

20. Method according to one of claims 17 to 19, wherein a reading device (8) according to one of claims 10 to 16 is used to carry out the method.

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