System with a sensor in a first housing

Abstract

System (1) with a sensor (2) in a first housing (3) and a first control and evaluation unit (6) and a memory (7), wherein the sensor (2) has at least three electronic display elements (8), wherein the three electronic display elements (8) are arranged at different locations on the first housing (3), wherein the display elements (8) form a clear orientation in space, characterized in that the system (1) comprises a mobile display device (9) in a second housing (10) with at least a second control and evaluation unit (11), a camera (12) and a display unit (13), wherein the unique orientation of the three display elements (8) is detected by means of the camera (12), wherein the second control and evaluation unit (11) is designed to evaluate the orientation of the first housing (3) and to display it on the display unit (13), wherein the first control and evaluation unit (6) is designed to optically send information from the memory (7) via at least one of the electronic display elements (8) to the spatially separate mobile display device (9), and the display device (9) is designed to receive the information by means of the camera (12) or by means of at least one second receiving element, and the second control and evaluation unit (11) is designed to evaluate the information.

Description

[0001] The present invention relates to a system comprising a sensor in a first housing according to the preamble of claim 1.

[0002] Sensors are distributed throughout an industrial hall, for example, each of which creates a detection field in the open space. This should make it possible for a user to determine which sensors in the user's field of view have which function, configuration, etc. To do this, communication must be established with the relevant sensor, ensuring that no other sensor is addressed. Furthermore, the orientation or position of the device or sensor is also crucial. Therefore, it is necessary to know which direction the sensor is facing. This is particularly difficult to determine with devices located further away.

[0003] Common technologies for wireless transmission are radio and infrared. These technologies cannot be visually assigned to the appropriate sensor without additional measures. Radio technologies also have the disadvantage of country-specific approval.

[0004] EP1340999A1 and WO2001088470A1 each disclose three arranged lights to determine an orientation of a sensor housing by means of a camera.

[0005] DE102012112160A1 discloses a method for non-visual optical data transmission using a field device in process automation technology, wherein the field device has at least one display element, by means of which a non-visual optical signal is transmitted at least temporarily for data transmission. In a further embodiment of the method, further field device information can be retrieved, for example, from a database based on the data transmitted by means of the optical signal, in particular the identifier of the field device. The database can be located, for example, in the operating device, or data can be retrieved from the database, for example, using the operating device.For example, it is possible to identify the field device using the operator device and the identifier transmitted by the field device, and to retrieve data from a remote database, for example a database of the field device manufacturer, from the operator device, which could be a smartphone or another operator device with an internet connection.

[0006] One object of the invention is to establish communication with a person for a sensor in a secure area and to determine which sensor it is. Another object is to determine the orientation of a sensor within the person's field of vision and to establish communication with a visual receiver.

[0007] The object is achieved according to claim 1 by a system with a sensor in a first housing and a first control and evaluation unit and a memory, wherein the sensor has at least three electronic display elements, wherein the three electronic display elements are arranged at different locations in the housing, wherein the display elements form a clear orientation in space, wherein the system has a mobile display device in a second housing with at least a second control and evaluation unit, a camera and a display unit, wherein the clear orientation of the three display elements is detected by means of the camera, wherein the second control and evaluation unit is designed to evaluate the orientation of the first housing and to display it on the display unit,wherein the first control and evaluation unit is designed to optically transmit information from the memory to the spatially separated mobile display device via at least one of the electronic display elements, and the display device is designed to receive the information by means of the camera or by means of at least one second receiving element, and the second control and evaluation unit is designed to evaluate the information.

[0008] According to the invention, at least three electronic display elements are arranged at different locations on the housing, with the display elements providing a clear spatial orientation. The display elements thus act as position lights for the housing. This allows the sensor to be visually located in space.

[0009] The display elements are arranged in such a way that a distinguishable and unambiguous image for orienting the first housing is produced from every viewing direction. The display elements are visually detected by at least one camera or a second receiving element of the mobile display device. In addition to spatial orientation, triangulation of the illuminated dots of the display elements can also be used, for example, to determine the distance to the first housing. This is particularly true if the spacing and arrangement of the display elements on the first housing are known to the second control and evaluation unit.

[0010] According to the invention, the sensor in the first housing does not need to transmit the entire configuration, but only the sensor identifier and, for example, the identifier of a previously imported configuration. The receiving mobile display device can then view the configuration stored in the sensor or in the sensor's memory, either locally or via data transmission (e.g., Wi-Fi), and assign it to the sensor or the first housing using the identifier in a way that prevents confusion.

[0011] The distance to the first housing and its orientation can also be estimated based on the housing edges or more simply using special marks on the housing, since the size of the housing or the distance between the marks on the housing are known to the first control and evaluation unit. This allows the camera to also determine the distance via triangulation.

[0012] The identifier or information can, for example, also be sent out via a display or display unit in the first housing. A data code plate containing a data code can also be arranged on the first housing. A specially provided light-emitting diode can also be used on the first housing to send out the identifier or information. This can be done using visible light, but also in the non-visible range, for example to achieve a greater range. The near infrared range, for example, would be advantageous because the camera or camera chip is designed to be sensitive to this, and infrared signals from display elements in the first housing can therefore be detected by the camera and detected by the second control and evaluation unit.

[0013] Part of the information, e.g. the device ID, can also be printed on the first housing and recognized by the camera.

[0014] The display elements are preferably arranged at the corners of the housing. For example, three corners each have a display element. For example, four corners each have a display element. For example, each corner has a display element.

[0015] Preferably, the display elements are arranged at the edges of the housing. For example, three edges each have a display element. For example, four edges each have a display element. For example, each edge has a display element. For example, the display elements are arranged at the corners and / or edges of the first housing.

[0016] The display elements thus form, for example, the vertices of an imaginary triangle. This allows the mobile display device to capture a clear spatial orientation using the camera, evaluate it with the second control and evaluation unit, and display it on the display unit.

[0017] According to the invention, the sensor can thus be visually located in space and uniquely identified using the information received. The second control and evaluation unit evaluates the information received via the display device's camera.

[0018] This allows a user to determine which sensors in the user's field of view have which function, configuration, etc. To do this, communication is established with the relevant sensor or the first housing, ensuring that no other sensor or another first housing is addressed. Furthermore, the orientation or position of the device or sensor is also known in the second control and evaluation unit of the mobile display device.

[0019] The mobile display device has the second housing. The second housing contains at least one camera, the second control and evaluation unit, and at least one display unit.

[0020] The sensor can be, for example, an optical sensor, an inductive sensor, a capacitive sensor, a level sensor, a pressure sensor, or similar. The position, orientation, and function of the sensor can be evaluated by the second control and evaluation unit.

[0021] In a further development of the invention, the sensor has at least one transmitting element and at least one receiving element for object detection.

[0022] The transmitting element is preferably an optoelectronic transmitting element and the receiving element is preferably an optoelectronic receiving element.

[0023] The sensor can be, for example, a time-of-flight sensor, a laser scanner, a laser scanner with multiple scan planes, a time-of-flight camera, a stereo camera, an FMCW lidar sensor, a radar sensor, an ultra-wideband wireless sensor or an infrared camera.

[0024] Such sensors are suitable for effectively monitoring a spatial surveillance area.

[0025] Time-of-flight measurement systems enable distance measurement by determining the time difference between the emission of light and the return of the light reflected from the measuring object.

[0026] For example, the light-time-of-flight sensor operates according to a direct time-of-flight (dTOF) method, whereby short light pulses or groups of light pulses are emitted and the time until a remission or reflection of the light pulses is received by an object is measured. The light signals are formed by light pulses.

[0027] However, other time-of-flight methods are also possible, for example the phase method, according to which transmitted light is amplitude-modulated and a phase shift between transmitted and received light is determined, whereby the phase shift is also a measure of the time-of-flight (indirect time-of-flight method, iTOF).

[0028] A CW (continuous wave) method, or the synonymous continuous wave method, can also be used, which uses a temporally constant light signal. In this method, for example, the single photon events are distributed between two counters using a gating signal, and a phase is calculated from the ratio of the counter readings.

[0029] A 3D camera, for example, monitors the surveillance area using a large number of recorded distance values. A 3D camera has the advantage that a volume-like protected area can be easily monitored.

[0030] A stereo camera, for example, monitors the surveillance area using a large number of recorded distance values. The distance values ​​are determined based on the two cameras of the stereo camera, which are mounted at a base distance from each other. A stereo camera also has the advantage of being able to monitor a volume-like protected area.

[0031] A time-of-flight camera determines distance values ​​based on the measured time of light, which is determined by an image sensor. A time-of-flight camera also has the advantage of being able to monitor a volume-like protected area.

[0032] The radar sensors, for example, form spatial monitoring zones for monitoring the protected area. The protected areas can have almost any geometry. For example, the protected areas are conical or club-shaped for spatial protection zones, starting from the radar sensor housing. For example, the opening angle of a protected area is + / - 60°. Smaller or larger opening angles are also possible. However, with a sensor with more than one receiving antenna and / or transmitting antenna, rectangular or cuboid-shaped protected areas can also be formed.

[0033] For example, the radar sensor or each radar sensor with the receiving antenna emits radar waves in the frequency range from 40 GHz to 125 GHz. The frequency band of the radar sensor may be smaller than the specified frequency range.

[0034] In a further development of the invention, the electronic display elements each have different colors. Preferably, the display elements each emit light in one of the three primary colors. This includes, for example, the colors red, green, and blue. However, three other different colors can also be provided. It is important that the camera can distinguish between the at least three display elements.

[0035] In a further development of the invention, the electronic display elements each emit different optical codes. This allows the camera, and thus the second control and evaluation unit, to distinguish between the at least three display elements.

[0036] The information or identifiers can then, for example, be sent out by at least one of the display elements.

[0037] A visual display of the display elements is particularly advantageous. This can be so pronounced, for example, that a status LED or one of the display elements of the first housing continuously flashes the sensor's data or information. Thus, if the sensor is observed with a fast camera on the mobile display device, information such as a serial number and / or a recorded configuration number can be obtained simultaneously via the status LED or one of the display elements. This also provides a visual connection.

[0038] In addition, status data, e.g. whether the sensor is working, protective fields are violated or an error has occurred, can be output by flashing at least one of the display elements.

[0039] The information or data, such as a sensor identifier or a configuration identifier, can also be used for navigation. A driverless transport system can then use this information, for example, to drive in such a way that the protective field of a suspended sensor is not violated. Based on the information received, the driverless transport system can, for example, bypass a sensor's protective field in order to maintain the availability of a system. If the spatial arrangement of the sensors is also known, for example based on a previous mapping, the sensors can be used as orientation points or "beacons." This makes it possible to determine a location and navigate through a factory hall.

[0040] In a further development of the invention, the mobile display device is a pair of augmented reality glasses, or AR glasses for short. Using augmented reality glasses, the real environment is displayed on the display unit of the AR glasses, and information can be simultaneously overlaid onto the real image. This allows for a simultaneous overlay of real environmental information and, for example, virtual information.

[0041] The AR glasses, in particular, feature position sensors to determine their spatial orientation. The display unit is located directly inside the AR glasses in front of the wearer's eyes. A separate stereoscopic image is presented to each eye, allowing the viewer to spatially perceive their surroundings with superimposed virtual information. The camera or multiple cameras are located on the outside of the AR glasses, particularly on the front of the AR glasses, i.e., in the direction of the viewer's field of vision, to record the environmental information and evaluate the display elements of the first housing.

[0042] In a further development of the invention, the AR glasses have sensors for measuring the environment.

[0043] For example, the mobile display device also features an independent distance-measuring system, such as a time-of-flight camera. Using the camera and the visualization system, i.e., the display unit, the AR glasses are able to overlay preset protective fields and / or warning fields into the image captured by the camera. A combination of multiple cameras and time-of-flight cameras, as well as an implementation based on the advanced training using AR glasses, allows the user to walk through an industrial area or factory hall and view all desired sensor fields.

[0044] The latter is particularly advantageous as it allows the AR glasses user to overlay any virtual image onto the real image of the environment. According to this training, AR glasses, such as the Vision Pro from Apple®, can thus also determine the orientation of a distant laser scanner and also receive information about its configuration. This allows the AR glasses to act as a display device, for example, to draw a protective field and a warning field. Furthermore, by knowing the sensor's serial number, the user can use the AR glasses as a mobile display device to change the sensor configuration directly on the factory floor and view a new configuration. The user can also check whether the sensors are in the correct position by touching the fields with their limbs. Furthermore, the user can check whether protective fields are correctly configured.

[0045] In a further development of the invention, the display device is a mobile phone, a smartphone, a mobile computer or a tablet computer.

[0046] For example, using a smartphone as a very simple receiver would be advantageous, as smartphones are very widespread and therefore highly available. Some smartphones already come standard with a slow-motion video function and a high-quality camera. For example, popular smartphones have a slow-motion video recording capability at 240 frames per second in 720pHD (1280p * 720p), i.e., HD quality.

[0047] For example, the mobile display device also features an independent distance-measuring system, such as a time-of-flight camera. Using the camera and the visualization system, the display unit is able to overlay preset protective fields and / or warning fields into the image captured by the camera. A combination of multiple cameras and time-of-flight cameras, along with implementation according to the further development using the display device as a mobile phone, smartphone, mobile computer, or tablet computer, allows the user to walk through an industrial area or factory hall and view all the desired sensor fields.

[0048] For some applications, a normal smartphone is sufficient as a receiver and no specialized hardware is required.

[0049] In a further development of the invention, the information is sensor information, digital sensor information, analog sensor information, a sensor configuration, a sensor number, an order number, a sensor designation, a data code, a data sheet, an internet address, IO-Link information, IO-Link parameters, parameters, in particular sensor parameters and / or measuring range data.

[0050] This allows a large number of data, in particular different data, to be output via the at least one display element.

[0051] In a further development of the invention, the first control and evaluation unit is configured to optically transmit information from the memory to the spatially separated mobile display device via the optoelectronic transmitting element of the sensor, wherein the optoelectronic transmitting element is the transmitting element intended for object detection. Thus, the optoelectronic transmitting element itself is configured to transmit the information.

[0052] This means, for example, that an infrared light source can be used as an optoelectronic transmitting element by the sensor's main measuring system, such as a laser scanner or a time-of-flight camera, to send data by, for example, superimposing slow beats on the pulse patterns in the time-of-flight method. For example, with a laser scanner, the pulse length for a transmitted ONE could be slightly longer than for a transmitted ZERO. The signal encoded in this way is left the same for one or more revolutions of the laser scanner, for example. This makes it slow enough for the camera display unit. The camera of the display unit, for example, only detects a time-integrated value. The shorter light pulses are therefore perceived as weaker in terms of amplitude. This allows simple data to be transmitted. A change in the pulse width, on the other hand, usually has little to no effect on the sensor's measurement accuracy.

[0053] In a further development of the invention, the sensor and the display device each have a local network connection, in particular an Ethernet connection or an Internet connection, to a shared server. This allows the sensor and the display device to access the shared server, where information from the sensor and information from the display device can be merged and combined.

[0054] For example, the Ethernet connection forms a local network connection to a higher-level controller or another intelligent system, such as a server or a distributed system, or a system with artificial intelligence.

[0055] If the sensor has an internet connection or a network connection to the shared server, the configuration can subsequently be modified and changed, for example, by the receiving display device. The advantage of this method is that only a very low data rate is required from the sensor—namely, a sensor identifier and a configuration identifier. In particular, additional information about the sensor and the display device can be stored on the server.

[0056] In a further development of the invention, the first control and evaluation unit is designed to receive the information from other adjacent sensors by means of the optoelectronic receiving element and / or a further optoelectronic receiving element, and the first control and evaluation unit is designed to evaluate the information.

[0057] The sensors thus also have a receiving component, the optoelectronic receiving element, and can thus receive information about neighboring devices or neighboring sensors. If enough sensors are located close enough to each other and are configured to exchange information with each other, a spatial map can also be created.

[0058] A sensor could also receive a command or instruction via neighboring sensors, prompting the sensor to output the information via the display element only at that time. In this way, inactive status LEDs could also be used for a short time to increase data throughput. The invention is explained below with reference to further advantages and features using exemplary embodiments and the accompanying drawings. The figures of the drawing show: Fig. 1 to 4 each show a system comprising a sensor in a first housing and a mobile display device.

[0059] In the following figures, identical parts are provided with identical reference numerals.

[0060] Fig. 1 shows, by way of example, a system 1 with a sensor 2 in a first housing 3 with at least one optoelectronic transmitting element 4 and one optoelectronic receiving element 5 for object detection and a first control and evaluation unit 6 and a memory 7. However, the sensor can also be, for example, an optical sensor, an inductive sensor, a capacitive sensor, a fill level sensor, a pressure sensor or the like.

[0061] The sensor 2 has at least three electronic display elements 8, wherein the three electronic display elements 8 are arranged at different locations in the first housing 3, wherein the display elements 8 form a unique orientation in space, wherein the system 1 has a mobile display device 9 in a second housing 10 with at least a second control and evaluation unit 11, a camera 12 and a display unit 13, wherein the unique orientation of the three display elements 8 is detected by means of the camera 12, wherein the second control and evaluation unit 11 is designed to evaluate the orientation of the first housing 3 and to display it on the display unit 13, wherein the first control and evaluation unit 6 is designed to optically send information from the memory 7 via at least one of the electronic display elements 8 to the spatially separated mobile display device 9,and the display device 9 is designed to receive the information by means of the camera 12 or by means of at least one second receiving element and the second control and evaluation unit 11 is designed to evaluate the information.,

[0062] According to Fig. 1, at least three electronic display elements 8 are arranged at various locations on the first housing 3, with the display elements 8 providing a clear spatial orientation. The display elements 8 thus form position lights for the first housing 3. This allows the sensor 2 to be visually located in space using the first housing 3.

[0063] The display elements 8 are arranged such that a distinguishable and unambiguous image for orienting the first housing 3 is produced from every viewing direction. The display elements 8 are visually detected by the at least one camera 12 or a second receiving element of the mobile display device 9. In addition to spatial orientation, triangulation of the illuminated points of the display elements 8 can also be used, for example, to determine the distance to the first housing 3. This is particularly true if the spacing and arrangement of the display elements 8 on the first housing 3 are known to the second control and evaluation unit 11.

[0064] According to the invention, the sensor 2 in the first housing 3 does not need to transmit the entire configuration, but rather, for example, only the identifier of the sensor 2 and, for example, the identifier of a loaded configuration. The receiving mobile display device 9 can then view the configuration stored in the sensor 2 or in the memory 7 of the sensor 2, either locally or, for example, via data transmission (e.g., Wi-Fi), and assign it to the sensor 2 or the first housing 3 using the identifier in a way that prevents confusion.

[0065] The identifier or information can also be transmitted, for example, via a display or a display unit of the first housing 3. A dedicated LED can also be used on the first housing 3 to transmit the identifier or information. This can be done with visible light, but can also be done in the invisible range, for example, to achieve a greater range.

[0066] Part of the information, e.g. the device identification, can also be printed on the first housing 3 and recognized by the camera 12.

[0067] Preferably, the display elements 8 are each arranged at the corners of the first housing 3. More preferably, the display elements 8 are each arranged at the edges of the first housing 3. For example, the display elements 8 are arranged at the corners and / or edges of the first housing 3.

[0068] The display elements 8 thus form, for example, the vertices of an imaginary triangle. This allows a clear spatial orientation to be captured by the mobile display device 9 using the camera 12, evaluated by the second control and evaluation unit 11, and displayed by the display unit 13.

[0069] Thus, according to the invention, the sensor 2 can be visually located in space and uniquely identified using the received information. The information received via the camera 12 of the display device 9 is evaluated by the second control and evaluation unit 11.

[0070] The mobile display device 9 has the second housing 10. The at least one camera 12, the second control and evaluation unit 11, and at least the display unit 13 are arranged in the second housing 10.

[0071] In a further development of the invention, the electronic display elements 8 each have different colors. Preferably, the display elements 8 each emit light in one of the three primary colors. This provides, for example, the colors red, green, and blue. However, three other different colors can also be provided. It is important that the camera 12 can distinguish between the at least three display elements.

[0072] In a further development of the invention, the electronic display elements 8 each emit different optical codes. This allows the camera 12 and thus the second control and evaluation unit 11 to distinguish the at least three display elements 8 from one another.

[0073] The information or identifiers can then be sent out, for example, by at least one of the display elements 8.

[0074] If the sensor 2 is observed with a fast camera 12 of the mobile display device 9, information about, for example, a serial number and / or a recorded configuration number can be obtained simultaneously via the status LED or one of the display elements 8. This also provides a visual connection.

[0075] In addition, status data, e.g. whether the sensor 2 is working as intended, protective fields are violated or an error has occurred, can be output by flashing at least one of the display elements 8.

[0076] According to Fig. 2, the mobile display device 9 is a pair of augmented reality glasses 14, or AR glasses 14 for short. Using augmented reality glasses 14, the real environment is displayed in the display unit 13 of the AR glasses 14, and information can be simultaneously overlaid onto the real image. This allows for a simultaneous overlay of real environmental information and, for example, virtual information.

[0077] The AR glasses 14 have, in particular, position sensors to determine the orientation of the AR glasses 14 in space. The display unit 13 is arranged directly in the AR glasses 14 in front of the eyes of the wearer of the AR glasses 14. A separate stereoscopic image is presented to each eye, allowing the viewer to spatially perceive the environment with superimposed virtual information. The camera 12 or several cameras are arranged on the outside of the AR glasses 14, in particular on the front of the AR glasses 14, i.e., in the direction of the viewer's field of vision, in order to record the environmental information and evaluate the display elements 8 of the first housing 3.

[0078] For example, the mobile display device 9 additionally has an independent distance-measuring system, such as a time-of-flight camera. Thus, the AR glasses 14, using the camera 12 and the visualization system, i.e., the display unit 13, are able to display, for example, preset protective fields and / or warning fields in the image captured by the camera 12. A combination of multiple cameras 12 and time-of-flight cameras, as well as an implementation according to the further development using the AR glasses 14, allows the user to walk through an industrial area or a factory hall and view all desired sensor fields of the sensors 2.

[0079] The latter is particularly advantageous because it allows the user of the AR glasses 14 to overlay any virtual image onto the real image of the environment. This allows the AR glasses 14, as a display device 9, to draw, for example, a protective field and a warning field. Furthermore, by knowing the serial number of the sensor 2, the user can change the configuration of the sensor 2 directly in the factory and view a new configuration via the AR glasses 14 as a mobile display device 9. The user can also check with their limbs by touching the fields to determine whether the sensors 2 are in the correct position or, for example, whether protective fields are correctly configured.

[0080] According to Fig. 3, the display device 9 is a mobile phone, a smartphone, a mobile computer or a tablet computer.

[0081] For example, the mobile display device 9 additionally has an independent distance-measuring system, such as a time-of-flight camera. Thus, the display unit 13, using the camera 12 and the visualization system, is able to overlay, for example, set protective fields and / or warning fields into the image captured by the camera 12. A combination with multiple cameras 12 and time-of-flight cameras, as well as an implementation according to the further development using the display device 9 as a mobile phone, smartphone, mobile computer, or tablet computer, allows the user to walk through an industrial area or a factory hall and view all desired sensor fields of the sensors 2.

[0082] In further development, the information is sensor information, digital sensor information, analog sensor information, a sensor configuration, a sensor number, an order number, a sensor designation, a data code, a data sheet, an internet address, IO-Link information, IO-Link parameters, parameters, in particular sensor parameters and / or measuring range data.

[0083] In a further development, the first control and evaluation unit 6 is configured to optically transmit information from the memory 7 to the spatially separated mobile display device 9 via the optoelectronic transmitting element 4 of the sensor 2, wherein the optoelectronic transmitting element 4 is the transmitting element intended for object detection. Thus, the optoelectronic transmitting element 4 itself is configured to transmit the information.

[0084] Thus, for example, an infrared light source can be used as an optoelectronic transmitting element 4 by the main measuring system of the sensor 2, for example a laser scanner or a time-of-flight camera, to send data by, for example, superimposing slow beats on the pulse patterns in the time-of-flight method.

[0085] According to Fig.4, the sensor 2 and the display device 9 each have a local network connection or an internet connection to a shared server 15. This allows the sensor 2 and the display device 9 to access the shared server 15, where information from the sensor 2 and information from the display device 9 can be merged and combined. One or more servers in the local network or on the internet can be used, or cloud servers from external providers such as AWS or Microsoft Azure can be used. Depending on the individual case, one or the other implementation may be more advantageous.

[0086] If sensor 2 has an internet connection or a network connection to the shared server 15, the configuration can subsequently be modified and changed, for example, by the receiving display device 9. The advantage of this method is that only a very low data rate is required to transmit from sensor 2—namely, an identifier of sensor 2 and an identifier of the configuration. In particular, additional information about sensor 2 and display device 9 can be stored on server 15.

[0087] In a further development, the first control and evaluation unit 6 is designed to receive the information from other adjacent sensors by means of the optoelectronic receiving element 5 and / or a further optoelectronic receiving element, and the first control and evaluation unit 6 is designed to evaluate the information.

[0088] The sensors 2 thus also have a receiving section with the optoelectronic receiving element 5 and can thus receive information about neighboring devices or neighboring sensors. If a sufficient number of sensors are located close enough to each other and are configured to exchange information with each other, a spatial map can also be created.

[0089] A sensor 2 could also receive a command or instruction from neighboring sensors, causing the sensor 2 to only then output the information via the display element 8. Thus, even inactive status LEDs could be used for a short time to increase the data rate throughput. Reference symbol: 1 system 2 sensors 3 first housing 4 optoelectronic transmitting element 5 optoelectronic receiving element 6 first control and evaluation unit 7 storage 8 electronic display elements 9 mobile display device 10 second housing 11 second control and evaluation unit 12 Camera 13 Display unit 14 AR glasses 15 servers QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 1340999A1

[0004] WO 2001088470A1

[0004] DE 102012112160A1

[0005]

Claims

[1] System (1) with a sensor (2) in a first housing (3) and a first control and evaluation unit (6) and a memory (7), wherein the sensor (2) has at least three electronic display elements (8), wherein the three electronic display elements (8) are arranged at different locations on the first housing (3), wherein the display elements (8) form a clear orientation in space, characterized by , that the system (1) comprises a mobile display device (9) in a second housing (10) with at least a second control and evaluation unit (11), a camera (12) and a display unit (13), wherein the unique orientation of the three display elements (8) is detected by means of the camera (12), wherein the second control and evaluation unit (11) is designed to evaluate the orientation of the first housing (3) and to display it on the display unit (13), wherein the first control and evaluation unit (6) is designed to optically send information from the memory (7) via at least one of the electronic display elements (8) to the spatially separate mobile display device (9), and the display device (9) is designed to receive the information by means of the camera (12) or by means of at least one second receiving element, and the second control and evaluation unit (11) is designed to evaluate the information. [2] System (1) according to claim 1, characterized bythat the sensor has at least one transmitting element (4) and one receiving element (5) for object detection. [3] System (1) according to claim 1, characterized by that the electronic display elements (8) each have different colors. [4] System (1) according to one of the preceding claims, characterized by that the electronic display elements (8) each emit different optical codes. [5] System (1) according to one of the preceding claims, characterized by that the display device (9) is AR glasses (14). [6] System (1) according to claim 5, characterized by that the AR glasses have sensors to measure the environment. [7] System (1) according to claim 1, characterized by that the display device (9) is a mobile phone, a smartphone, a mobile computer or a tablet computer. [8] System (1) according to one of the preceding claims, characterized bythat the information is sensor information, digital sensor information, analog sensor information, sensor configuration, a sensor number, an order number, a sensor designation, a data code, a data sheet, an internet address, IO-Link information, IO-Link parameters, parameters, in particular sensor parameters and / or measuring range data. [9] System (1) according to one of the preceding claims, characterized by that the first control and evaluation unit (6) is designed to optically transmit information from the memory (7) via the optoelectronic transmitting element (4) of the sensor (2) to the spatially separated mobile display device (9), wherein the optoelectronic transmitting element (4) is the transmitting element (4) which is provided for object detection. [10] System (1) according to one of the preceding claims, characterized bythat the sensor (2) and the display device (9) each have a local network connection or an Internet connection to a shared server (15). [11] System (1) according to one of the preceding claims, characterized by that the first control and evaluation unit (6) is designed to receive the information from other adjacent sensors by means of the receiving element (5) and / or a further optoelectronic receiving element and the first control and evaluation unit (6) is designed to evaluate the information.

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