Sensor device, sensor system, environment monitoring system, method and computer program

Abstract

A sensor device (10) for monitoring an environment (50) of the sensor device (10) is provided, comprising a housing (11), one or more sensors (12a, 12b, 12c) environment (50) for detecting sensor data (13) relating to the following, a communication interface (15) for wirelessly communicating sensor information (101) on the basis of the sensor data (13), and a control device (20) for controlling the sensor device (10), wherein the sensor device (10) has an energy storage device (25) for operating the sensor device (10), the sensor device (10) has a mounting section (30) on the housing (11), the mounting section (30) being designed to securely mount the sensor device (10) on and / or in a reversibly arranged outer base (55).

Description

Technical Field

[0001] The present disclosure relates to a sensor device for monitoring an environment of the sensor device. The present disclosure also relates to a sensor system, an environment monitoring system, and a method for operating the environment monitoring system. Additionally or alternatively, a computer program is provided, comprising instructions that, when executed by a computer, cause the computer to at least partially perform the method. Additionally or alternatively, a computer-readable medium is provided, comprising instructions that, when executed by a computer, cause the computer to at least partially perform the method. Background Art

[0002] Sensor devices for monitoring the environment of a sensor device are known in the art. For example, the environment can be monitored to detect and characterize changing conditions within the environment. Such sensor devices are used to monitor roads and their environment. For example, the sensor device can detect people, animals, and / or obstacles within the road environment and / or on the road.

[0003] In order to ensure the operation of the sensor device, the sensor device is supplied with power and is connected to an external server in a communication manner for data exchange. The power supply and the communication connection for data exchange usually require a base infrastructure including power lines and / or telecommunication lines.

[0004] EP 1 709 610 B1 discloses a traffic intersection operation device for detecting individual vehicle data at a traffic intersection and transmitting the data to a central station for storage and processing, which includes: a traffic detection device for detecting individual vehicle data at the intersection; a network connection to the central station; wherein the traffic device is functionally designed to transmit traffic signal information and individual vehicle information to the central station; wherein the data collection device of the central station determines the time point for detecting one or more images and transmits the time plan to the image detection system.

[0005] DE 10 2012 208 974 A1 discloses a method and a system. The method and system can determine an estimated location of a vehicle by measuring the location of an object relative to the vehicle using sensors connected to the vehicle, and using the measured relative location of the object in combination with previously stored locations of the object to determine an updated location of the vehicle. The estimated location of the vehicle can be determined using a system other than the sensor-associated system, such as a GPS system. The location of the object can be measured relative to a sub-map corresponding to the location of the object of the vehicle.

[0006] However, existing technologies require infrastructure for connecting sensor devices. Creating and setting up this infrastructure can be labor-intensive and costly, especially in remote locations, test tracks, and / or factory locations. Furthermore, known sensor devices are tied to specific locations and therefore cannot be flexibly deployed, for example, based on demand. Summary of the Invention

[0007] Against this background of the prior art, the present invention is particularly directed to providing an improved sensor device suitable for enriching the prior art. Specific configurations disclosed herein can solve the following tasks: providing a sensor device that can be used effectively and flexibly and can be used for environmental monitoring.

[0008] This object is achieved by the features of the independent claim. The dependent claims and subclaims contain optional developments of the disclosure.

[0009] The object is achieved by a sensor device for monitoring an environment of the sensor device, comprising a housing, one or more sensors for detecting sensor data related to the environment, a communication interface for wireless communication of sensor information based on the sensor data, and a control device for controlling the sensor device, wherein the sensor device has an energy storage device for operating the sensor device, the sensor device has a mounting section on the housing, and wherein the mounting section is provided for ground-fixed and reversible arrangement of the sensor device.

[0010] The sensor device serves as the basis for operating sensors for environmental monitoring. Sensor data enables characterization of the environment. The sensor data can be processed by the sensor device and / or the control device into sensor information, which, for example, has a smaller data volume than the sensor data and is therefore more suitable for transmission via a communication interface. Sensor information related to the environment can be wirelessly transmitted via the communication interface to an external server and / or directly to the vehicle.

[0011] The sensor device includes an energy storage device for operating the sensor device. The energy storage device is configured to store energy that can be converted into electrical energy and made available for operating the sensor device. This allows the sensor device to operate autonomously and is therefore independent of the power grid. The sensor device can be flexibly deployed at various locations, eliminating the need for a power supply from the grid.

[0012] The mounting section on the housing allows for a ground-fixed and reversible arrangement of the sensor device. The ground-fixed, i.e., geostationary, arrangement of the sensor device allows for optimal positioning of the sensor device to enable precise evaluation and / or interpretation of the sensor data. The sensor device can be arranged so that the sensor data can be reliably detected. In particular, the ground-fixed arrangement reduces potential interference with the sensor due to movement of the sensor device. The reversible arrangement of the sensor device allows for non-destructive installation and removal. The sensor device can thus be installed and removed efficiently and cost-effectively. In particular, this allows for simple and efficient deployment of the sensor device at various locations.

[0013] The sensor device may include a charging interface for charging an energy storage device. The energy storage device is a rechargeable energy storage device. The charging interface is configured to provide current for charging the energy storage device, so that the energy storage device can be charged with current. The charging interface can be charged via an external power source and / or via a power source included in the sensor device.

[0014] The sensor device may include a photovoltaic device connected to the charging interface. The photovoltaic device is configured to convert light into electrical energy and to charge the energy storage device via the charging interface. Alternatively or additionally, the sensor device may include a wind energy device connected to the charging interface. Thus, the energy storage device can be charged at the location where the sensor device is used. The wind energy device is configured to convert the kinetic energy of the airflow impinging on the wind energy device into electrical energy and to provide it via the charging interface for charging the energy storage device. Thus, the energy storage device can be charged at the location where the sensor device is used even under poor lighting conditions. The sensor device can operate autonomously through the rechargeability achieved by the photovoltaic device and / or the wind energy device.

[0015] The communication interface can be configured to communicate with an external server. The sensor device can transmit sensor information to the external server via the communication interface. To this end, the communication interface can be configured to exchange, send, and / or receive data with the external server via a mobile network and / or via a local network. This enables external, for example, centralized, processing, further processing, and / or forwarding of sensor information.

[0016] The sensor device may include a position sensor. The position sensor is configured to detect a geographical location or coordinates of the sensor device. The position sensor enables automatic detection of the position of the sensor device. The geographical location enables the detected sensor data and / or sensor information based thereon to be localized in the environment of the sensor device. Manual detection of the location is no longer necessary, which allows for a more reliable interpretation of the sensor information. Alternatively or additionally, the sensor device may include a compass. The compass may be configured to detect an orientation or direction of the sensor device. The orientation of the sensor device may be automatically detected by the compass. This orientation enables precise localization of the detected sensor data and / or sensor information based thereon in the environment of the sensor device. Manual detection of the orientation is no longer necessary, which allows for a more reliable interpretation of the sensor information.

[0017] The housing may have a maintenance opening for servicing the sensor device. The maintenance opening is provided to enable maintenance and / or replacement of one or more components of the sensor device. This allows for efficient operation of the sensor device, for example, to upgrade, calibrate, assemble, disassemble, and / or repair the sensor device.

[0018] The energy storage device can be replaced through the maintenance access. Here, the energy storage device is replaceable. For example, the energy storage device can have an interface formed by plug contacts for this purpose, by means of which the energy storage device can be reversibly connected to a sensor device, such as a control device. This eliminates the need for recharging at the location of the sensor device.

[0019] In other words, and with respect to specific embodiments (which are described but do not limit the present disclosure), the above can be summarized as follows: For autonomous driving applications, it may be necessary to power sensors such as lidar, cameras, and radio technologies such as WLAN and 5G in areas without the corresponding infrastructure. Data from these sensors is then used to create an environmental model of the monitored area. Similar systems are known for monitoring construction sites using cameras. The base is covered with photovoltaic panels to ensure energy supply. However, these units are too large for the application and, weighing nearly 800 kilograms, are too heavy. The sensor system we are pursuing is lightweight, only about 2 meters high, and can be assembled and disassembled by one person. It also forms a stable base for the lidar, which must not be subjected to vibrations during operation. The core concept is an autonomous sensor station, in which the battery, charge regulator, radio module, WLAN, 5G, LTE, and other electronics are all housed in a large tube made of CFRP, GFRP, and / or aluminum, with a diameter of, for example, >200 mm. This can then be easily assembled on a special base, cast in concrete and / or screwed to the ground. Large openings allow for easy battery replacement or repair. Sensor devices of different sizes are available to accommodate a variety of sensor assemblies. The smallest unit is equipped with a replaceable battery. Other sizes can be assembled using simple fasteners. The simple and quick assembly and the oriented base enable rapid changes in location. This allows for the monitoring of workshop areas, aisles, and possibly test tracks. Comprehensive monitoring of the measurement site with sensors requires extensive infrastructure, i.e., power supply and network, as well as a large number of different sensors, cameras, and lidars. The sensor devices can monitor one or more areas and thus enable communication with vehicles (V2X). If a different route is now required, the sensor device can simply be repositioned and the range of the wireless communication changed. The assembly of these modules is universal and therefore offers additional uses for networked electronic devices, particularly for V2X communication. V2A (Vehicle to Anywhere), as an extension of V2I, can be established quickly and autonomously using sensor devices in environments without infrastructure.

[0020] According to another aspect of the present invention, a sensor system is provided. The sensor system includes the aforementioned sensor device and a base, wherein the base is configured to secure the sensor device to a foundation and reversibly position it on and / or in a foundation. The base enables a well-defined location for positioning the sensor device. Furthermore, the base can improve the detection of sensor data because it can determine the orientation of the sensor device and reduce mechanical oscillations and / or vibrations of the sensor device, which could, for example, affect the detection of sensor data.

[0021] The foundation can be concreted into the foundation and / or screwed to the foundation anchors. This allows for a particularly effective and reliable arrangement of the foundation, wherein in particular a stable mechanical connection between the foundation and the foundation is obtained.

[0022] The base can be configured to provide a predetermined orientation of the sensor device in the assembled state. Therefore, a compass of the sensor device is not required. This orientation enables precise localization of the detected sensor data and / or sensor information based on this data within the environment of the sensor device. Manual detection of the orientation is not required, which enables reliable interpretation of the sensor information.

[0023] According to another aspect of the present invention, an environmental monitoring system is provided. The environmental monitoring system includes the aforementioned sensor system and an external server equipped with a communication module. The server is capable of wirelessly connecting to the sensor system via a communication interface and the communication module for data transmission. The sensor system can thus process detected sensor data into sensor information and / or transmit it as sensor information to the external server. The external server can further process the received sensor information to evaluate it and thereby characterize the environment of the sensor system. Therefore, the external server plays a central role in the environmental monitoring system, particularly in receiving and processing sensor information transmitted by various sensor systems.

[0024] The server may be configured to wirelessly transmit environmental information about the environment to the vehicle. The received sensor information may be evaluated to generate the environmental information. For example, the environmental information may characterize the environment independently of the format of the detected sensor data and / or the type of sensor data detected. For example, the environmental information may indicate the presence of pedestrians, animals, obstacles, and / or hazards in the environment. The environmental information may be transmitted to the vehicle to issue warnings and / or execute automated driving functions.

[0025] According to another aspect of the present disclosure, a method for operating the aforementioned environment monitoring system is provided. The method comprises: transmitting sensor information from the sensor system to an external server; evaluating the sensor information by the external server to determine environment information; and transmitting the environment information from the server to the motor vehicle. This enables efficient monitoring of the environment, wherein the results of the environment monitoring are transmitted to the motor vehicle as environment information.

[0026] The above descriptions regarding the sensor device, the sensor system, and the environment monitoring system also apply analogously to the method, and vice versa.

[0027] In addition, a computer program is also provided, comprising instructions, which, when executed by a computer, cause the computer to at least partially execute or implement the above method.

[0028] The program code of the computer program may be any arbitrary code, in particular a code suitable for a control device of the sensor device and / or an external server.

[0029] The above description regarding the sensor device, the sensor system, the environment monitoring system and the method also applies analogously to the computer program, and vice versa.

[0030] In addition, a computer-readable medium, in particular a computer-readable storage medium, is also provided. The computer-readable medium includes instructions, which, when the program is executed by a computer, cause the computer to at least partially execute the above method.

[0031] That is, a computer-readable medium containing a computer program as defined above may be provided. The computer-readable medium may be any digital data storage medium, such as a USB memory stick, hard disk, CD-ROM, SD card, or SSD card. The computer program does not necessarily need to be stored on such a computer-readable storage medium, but may also be obtained externally via the Internet or other means.

[0032] The above description regarding the sensor device, sensor system, environment monitoring system, method and computer program also applies analogously to the computer-readable medium and vice versa. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Reference below Figure 1 and Figure 2 An embodiment is described.

[0034] Figure 1 Schematically illustrates a sensor device, a sensor system, an environment monitoring system, and a motor vehicle according to one aspect of the present disclosure;

[0035] Figure 2 The flowchart of the method according to one aspect of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0036] Figure 1 A sensor device 10 , a sensor system 100 , 100 ′, an environment monitoring system 150 , and a motor vehicle 160 according to each one aspect of the present disclosure are schematically shown.

[0037] Environmental monitoring system 150 includes two sensor systems 100, 100' and an external server 80 with a communication module 81. One of sensor systems 100 is shown in detail here. The other sensor system 100' can be designed similarly to the sensor system 100 shown in detail and is shown in less detail for simplicity. In another embodiment, environmental monitoring system 150 can include one or more than two sensor systems 100, 100'. The sensor system 100 shown in detail is described below.

[0038] according to Figure 1 The sensor system 100 includes a sensor device 10. The sensor device 10 and the sensor system 100 are arranged in an environment 50 of the sensor device or sensor system 100 in order to monitor the environment 50. For example, a road (not shown) is located in the environment 50. A motor vehicle 160 is arranged in the environment 50, for example, on the road. By arranging multiple sensor systems 100, 100', the environment 50 of the motor vehicle 160 can be comprehensively monitored. To this end, the environment monitoring system 150 can, for example, perform a reference Figure 2 Method 200 is described.

[0039] like Figure 1 As shown, sensor device 10 includes a plurality of sensors 12a, 12b, and 12c for detecting sensor data 13 related to environment 50. For example, sensor device 10 includes sensors 12a, 12b, and 12c, a LIDAR sensor 12a, a camera device 12b, and a radar sensor 12c. Each sensor 12a, 12b, and 12c is configured to detect sensor data 13 containing information about environment 50. In this case, each sensor 12a, 12b, and 12c can be configured to detect sensor data 13 that characterizes a specific portion of environment 50.

[0040] For example, the LIDAR sensor 12a may be configured to detect sensor data 13 that characterizes the environment 50 at a distance of up to 300 meters from the sensor device 10 and at a predetermined angle. The LIDAR sensor 12a may detect the environment 50 omnidirectionally, i.e., at a 360° angle. The LIDAR sensor 12a is configured to measure the time of flight of a light beam emitted by the LIDAR sensor 12a, which is reflected in the environment 50 and whose reflection is detected by the LIDAR sensor 12a. Thus, the LIDAR sensor 12a is capable of detecting distance or depth information.

[0041] The camera device 12b is configured to detect image data related to the surrounding environment 50 within a specific detection field. The camera device 12b can, for example, detect pixel patterns including color information and / or black and white information. To this end, the camera device 12b can include, for example, a CCD sensor.

[0042] For example, radar sensor 12 c may be configured to detect sensor data 13 that characterize surroundings 50 at a distance of up to 100 meters from sensor device 10 and at a predetermined angle.

[0043] Sensors 12a, 12b, and 12c are connected to a control device 20 included in sensor device 10. Control device 20 is configured to control sensor device 10. To this end, control device 20 includes a processor (not shown) for data processing and a memory (not shown) for data storage. For example, control device 10 can further process sensor data 13 to identify and / or classify objects in sensor data 13, for example, using machine learning. Based on sensor data 13, control device 10 determines sensor information 101, which has a smaller data volume than sensor data 13, for example. Sensor information 101 includes, for example, information related to objects in environment 50 and which can be efficiently transmitted due to its data volume.

[0044] The sensor device 10 has a housing 11. The housing 11 has a cylindrical section (not shown). The housing 11 has a diameter of more than 200 mm in order to accommodate the components of the sensor device 11. In order to make the housing 11 and the sensor device 11 particularly suitable for flexible use in different locations, the housing 11 is made of a lightweight material. For this purpose, the housing is made of aluminum, carbon fiber reinforced plastic (CFRP) and / or glass fiber reinforced plastic (GRP), for example. As a result, the housing 11 and therefore the sensor device 10 can be assembled and / or disassembled, for example, by only one person, and at the same time, the sensors 12a, 12b, 12c can be effectively arranged at a height that is advantageous for detecting the sensor data 13. The housing 11 has a height of approximately 2 meters.

[0045] Housing 11 has a maintenance opening 14, schematically indicated by dashed lines, for servicing sensor device 10. Maintenance opening 14 is arranged in an outer surface (not shown) of housing 11. In another embodiment, maintenance opening 14 may alternatively or additionally be arranged in an end face of housing 11. Maintenance opening 14 can be closed, for example, by a cover (not shown). Maintenance opening 14 may have a size of 10 cm to 30 cm.

[0046] Sensor device 10 has an energy storage device 25 for operating sensor device 10. Energy storage device 25 stores energy convertible into electrical energy and provides energy for operating sensor device 10. For example, energy storage device 25 includes a lithium-ion secondary battery, which is relatively light and provides a relatively high capacity.

[0047] In one embodiment, energy storage device 25 is replaceable via maintenance opening 14 . To this end, energy storage device 25 can be separated from the other components of sensor device 10 , for example via a plug connection (not shown), and replaced by another energy storage device 25 .

[0048] Alternatively or additionally, the energy storage device 25 may optionally be rechargeable. To this end, the sensor device 10 has a charging interface 26 for charging the energy storage device 25. The sensor device 10 includes a photovoltaic device 27 connected to the charging interface 26 in order to convert a portion of the solar radiation incident on the photovoltaic device 27 into electrical energy. To this end, the photovoltaic device 27 can be arranged outside the housing 14, in a recess (not shown) of the housing 14 provided for the photovoltaic device 27 and / or on a rack (not shown) outside the housing 14. The photovoltaic device 27 is arranged on the upper end face of the housing 14. Additionally or alternatively, the photovoltaic device 27 is arranged on the outer side of the housing 14 (not shown). The sensor device 10 includes a wind energy device 28 connected to the charging interface 26 in order to convert the airflow incident on the wind energy device 28 into electrical energy. To this end, the wind energy device 28 is partially arranged outside the housing 14.

[0049] Sensor device 10 includes a mounting section 30 arranged on and / or formed by housing 11, wherein mounting section 30 is provided for ground-fixing and reversibly positioning sensor device 10. Mounting section 30 is provided to allow the sensor device to be positioned on an external base 55. Mounting section 30 can be connected to base 55, for example, via a bayonet and / or screw connection (not shown). Mounting section 30 can, for example, include a lock (not shown) for securing sensor device 10. Sensor system 100 includes base 55. Base 55 is provided for ground-fixing sensor device 10 and for reversibly positioning it on and / or in base 55. Base 55 is cast into a foundation 56 with concrete and screwed to a ground anchor 57. Base 55 is provided to provide a predetermined orientation of sensor device 10 in the assembled state. To this end, base 55 has a preferred orientation. For example, base 55 may have a bayonet connection and / or a screw connection oriented in such a way that the assembled sensor device 10 has a good orientation. This improves the charging of energy storage device 25 by photovoltaic device 27 and the interpretation of sensor information 101.

[0050] Sensor device 10 has a communication interface 15 for wireless communication of sensor information 101 based on sensor data 13. Communication interface 15 is configured for wireless communication via a mobile radio network, for example, via 4G (LTE) and / or 5G. Alternatively or additionally, communication interface 15 is configured for communication via a wireless local area network, for example, via a WLAN protocol or a WiFi interface. Thus, communication interface 15 can be configured for traffic networking, in particular via vehicle-to-everything (V2X). Communication interface 15 is particularly configured for communication with an external server 80.

[0051] An external server 80 is connected to a plurality of sensor systems 100, 100'. The server 80 and the sensor systems 100, 100' are wirelessly connected via a communication interface 15 and a communication module 81 for data transmission. The communication module 81 is configured for wireless communication via a mobile network, such as 4G (LTE) and / or 5G. Alternatively or additionally, the communication module 81 is configured for communication via a wireless local area network, such as a WLAN protocol or a WiFi interface.

[0052] Sensor systems 100, 100' each transmit sensor information 101 related to their respective environments to server 80. Server 80 includes a processor (not shown) for data processing and a memory (not shown) for data storage. Server 80 is thus capable of further processing the received sensor information 101. For example, server 80 can fuse sensor information 101 received from different sensor systems 100, 100' to comprehensively represent environment 50. This allows for an arbitrarily large and effectively represented environment 50, and is not limited to the detection range of a single sensor system 100, 100'. Server 80 determines environmental information 51 about environment 50 from sensor information 101, such as objects, obstacles, and / or hazards in the surroundings and / or along the route of motor vehicle 160.

[0053] Server 80 may be configured to wirelessly transmit environmental information 51 to motor vehicle 160 via communication module 81. Motor vehicle 160 is configured to receive environmental information 51 and optionally further process it to output a report about environmental information 51 and / or perform an automated driving function.

[0054] Sensor device 10 includes a position sensor 29 and a compass 29a. Position sensor 29 is a GPS sensor. Position sensor 29 detects information related to the positioning of sensor device 10 and forwards this information to a control device for evaluation of sensor data 13 and / or forwards it together with sensor information 101 to server 80 via communication interface 15 for evaluation of sensor data 13. Compass 29a detects information about the orientation of sensor device 10 and forwards this information to a control device for evaluation of sensor data 13 and / or forwards it together with sensor information 101 to server 80 via communication interface 15 for evaluation of sensor data 13.

[0055] Figure 2 Schematically illustrates the process of a method 200 according to one aspect of the present disclosure. The method 200 is a method 200 for operating the environment monitoring system 150. Figure 1 To describe the environmental monitoring system 150. Figure 2 In the description of method 200, reference is made to Figure 1 and its description.

[0056] according to Figure 2 In the method 200 shown in FIG, sensor information 101 is transmitted 210 from sensor systems 100, 100' to an external server 80. In this case, different sensor systems 100, 100' arranged at a distance from one another can detect sensor data 13 related to an environment 50 and create corresponding sensor information 101 and transmit it to the server 80. The respective sensor information 101 is related to the environment 50 of the respective sensor system 100, 100'. The sensor systems 100, 100' can have associated, i.e., overlapping or separate, detection areas in which the sensor data 13 can be detected.

[0057] The sensor information 101 is evaluated 220 by the external server 80 to determine the environment information 51. The sensor information 101 is evaluated and / or further processed on the server side. In particular, the sensor information 101 received by different sensor systems 100, 100' can be fused to comprehensively represent the environment 50.

[0058] Environmental information 51 is transmitted 230 from server 80 to motor vehicle 160. Transmission 230 occurs, for example, periodically at predetermined time intervals and / or is triggered by the position of motor vehicle 160. Transmission 230 may occur, for example, when motor vehicle 160 approaches environment 50, and in particular, the detection area of ​​one of sensor systems 100, 100'.

[0059] Reference Signs List

[0060] 10 Sensor device

[0061] 11 Housing

[0062] 12a Sensor

[0063] 12b sensor

[0064] 12c sensor

[0065] 13 Sensor Data

[0066] 14 Maintenance opening

[0067] 15 Communication Interface

[0068] 20 Control device

[0069] 25 Energy storage device

[0070] 26 Charging port

[0071] 27 Photovoltaic devices

[0072] 28 Wind energy installations

[0073] 29 Position Sensor

[0074] 29a Compass

[0075] 30 Assembly section

[0076] 50 Environment

[0077] 51 Environmental Information

[0078] 55 Basic Works

[0079] 56 Foundation

[0080] 57 Ground Anchor

[0081] 80 servers

[0082] 81 Communication Module

[0083] 100 sensor system

[0084] 100' sensor system

[0085] 101 Sensor Information

[0086] 150 Environmental Monitoring System

[0087] 160 Motor Vehicles

Claims

1. A sensor device (10) for monitoring an environment (50) of the sensor device (10), comprising: - a housing (11), - one or more sensors (12a, 12b, 12c) for detecting sensor data (13) related to the environment (50), - a communication interface (15) for wireless communication of sensor information (101) based on the sensor data (13), and - a control device (20) for controlling the sensor device (10), Features the sensor device (10) has an energy storage device (25) for operating the sensor device (10), and The sensor device (10) has a mounting section (30) on the housing (11), wherein the mounting section (30) is provided for fixing the sensor device (10) to the ground and for reversibly arranging the sensor device (10). 2 . The sensor device according to claim 1 , wherein the sensor device ( 10 ) has a charging interface ( 26 ) for charging the energy storage device ( 25 ).

3. The sensor device according to claim 2, wherein the sensor device (10) comprises a photovoltaic device (27) and / or a wind energy device (28) connected to the charging interface (26). 4 . The sensor device according to claim 1 , wherein the communication interface ( 15 ) is configured to communicate with an external server ( 80 ).

5. The sensor device according to one of the preceding claims, wherein the sensor device (10) comprises a position sensor (29) and / or a compass (29a). 6 . The sensor device according to claim 1 , wherein the housing ( 11 ) has a maintenance opening ( 14 ) for servicing the sensor device ( 10 ).

7. The sensor device according to claim 6, wherein the energy storage device (25) is replaceable through the maintenance opening (14).

8. A sensor system (100, 100') comprising a sensor device (10) according to one of the preceding claims and a base (55), wherein the base (55) is configured to fix the sensor device (10) to the base and to reversibly arrange it on and / or in the base (55).

9. The sensor system according to claim 8, wherein the base (55) is concreted into a foundation (56) and / or is screwed to a ground anchor (57).

10. The sensor system according to claim 8 or 9, wherein the base (55) is arranged to provide a predetermined orientation of the sensor device (10) in an assembled state.

11. An environmental monitoring system (150), comprising a sensor system (100, 100') according to any one of claims 8 to 10, and an external server (80) having a communication module (81), wherein the server (80) can be wirelessly connected to the sensor system (100, 100') via the communication interface (15) and the communication module (81) for data transmission.

12. The environment monitoring system according to claim 11, wherein the server (80) is configured to wirelessly transmit environmental information (51) related to the environment (50) to the motor vehicle (160).

13. A method (200) for operating an environment monitoring system (150) according to any one of claims 11 or 12, wherein the method (200) comprises: - transmitting (210) sensor information (101) from the sensor system (100, 100') to the external server (80); - evaluating (220) the sensor information (101) by the external server (80) in order to determine the environmental information (51); and - transmitting (230) the environmental information (51) from the server (80) to the motor vehicle (160).

14. A computer program and / or a computer readable medium comprising instructions which, when executed by a computer, cause the computer to perform the method (200) and / or the steps of the method (200) according to claim 13.

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