Method for determining an energy input, construction inventory protection device, and use of a construction inventory protection device

Abstract

The invention relates to a method for detecting energy input induced by a collision between a floating body and a structure, a structural protection device, and the use of the structural protection device. The method comprises the steps of: - determining a first distance between the floating body and the structure at a first time using a first distance sensor, - determining a second distance between the floating body and the structure at a second time using the first distance sensor, - determining a first parameter of the floating body based on the first distance and / or the second distance using an evaluation unit, and - detecting energy input acting on the structure and induced by the collision based on the first parameter of the floating body using the evaluation unit.

Description

[0001] The invention relates to a method for detecting an energy input, a building protection device and a use of a building protection device.

[0002] Especially in international freight transport, also known as goods transport, goods are transported by sea using ships. Ships are also used for passenger transport by sea. As is well known, ships are loaded and unloaded, also called loading and unloading, primarily at ports. Port processes are highly automated. To fulfill loading and unloading tasks, the ships are positioned and moored at designated berths on a quay.

[0003] A quay, also called a pier, is a structure, usually artificial, located at the transition between water and land in a port. A quay typically features mooring devices for securing a ship. In addition, a quay usually has numerous protective devices to prevent damage during docking and / or undocking maneuvers, and / or during loading and unloading. These protective devices are typically located at specific points along the quay, often within a predefined area of ​​movement. Furthermore, a port facility or terminal, equipped with unloading cranes or similar equipment, is usually connected to the quay.

[0004] Docking a ship is generally a complex process. To ensure the safety and efficiency of a docking maneuver, systems are used to monitor the maneuver and / or provide data that allows a person, such as a captain or pilot, to influence the docking maneuver.

[0005] To prepare for a docking maneuver, information is generally gathered, such as the vessel's position, current weather conditions, the current tidal range, water depths in the harbor, and / or other vessel, environmental, and harbor conditions. This information is provided, in particular, to the vessel's captain and / or a pilot. Furthermore, navigation systems, such as GPS, radar, or AIS (Automatic Identification System), are used to determine the vessel's precise position and / or environmental parameters and / or to track them during the maneuver. AIS, in particular, is a data platform that provides vessel positions and / or vessel information, allowing for the provision of environmental information about a vessel.

[0006] Through targeted control of the rudder and / or propulsion system, such as propellers, bow or stern thrusters, as well as through the indirect action of tugboats, the vessel is maneuvered to approach the quay at a predefined speed and angle until it reaches a designated docking area and comes to a stop. Adjustments to the vessel's speed and / or direction of travel are necessary during the docking maneuver, particularly due to water movement, wind, and / or underwater currents, as well as to reduce propulsion until the vessel reaches a complete stop at the designated position. Once the vessel has reached the quay in the designated position, it is secured, primarily using lines and / or mooring systems. In this way, the vessel is secured to the quay.

[0007] A departure maneuver essentially requires carrying out the aforementioned process steps in reverse order, whereby there is a lower risk of collision between the quay and the ship when departing, although this risk is not negligible.

[0008] In the prior art, safety monitoring systems are known that technically monitor the docking maneuver, in particular using visual monitoring systems such as cameras. Furthermore, safety monitoring systems are known that are used to identify obstacles during the docking maneuver and / or to observe the area around the quay.

[0009] Automated docking systems for monitoring docking and undocking maneuvers are known in the prior art. Such systems primarily use GPS information to monitor the ship's position. The collected data is then evaluated by a specialist, such as the captain, who may make adjustments to the ship's speed and / or direction of travel based on this information.

[0010] Furthermore, the use of laser sensors to monitor docking maneuvers by measuring the distance between the docking vessel and the berth is well-established. The data obtained in this way is provided to the captain or pilot to optimize the vessel's position during the docking maneuver. The laser sensors can be located on the vessel or on the quay. A disadvantage of laser sensors is their high susceptibility to interference from environmental conditions such as dirt, dust, fog, and the like. Such environmental conditions are particularly common in seaport environments. Depending on the design of the laser system, there is also the disadvantage that people in the vicinity of the system, such as ship crews and / or quayside personnel, may be blinded by the laser beam of a laser-based system.

[0011] In the event of a collision between a ship and a quay, or in anticipation of a collision immediately before such a collision, no systems are known in the prior art that use docking maneuver data to automatically assess the structural integrity of the building. Instead, current practices involve a detailed analysis of the structure through visual inspection and measurement by qualified personnel in the event of a collision. This results in the unnecessary closure of some structures until the analysis process is complete.

[0012] Ultimately, the analyses of the structure are based on the visible and / or measurable damage, but unfortunately do not include the actual effects of the collision.

[0013] US patent 2024 / 0288866 A1 discloses a device and a method for assisting watercraft in maneuvering at berths in a water area adjacent to the berth.

[0014] In KR 10 2025 042 972 A, a system with an inflatable fender and a device for measuring distances during a docking maneuver is disclosed.

[0015] KR 10 2025 008 177 A discloses a floating pier with support systems for measuring distances during berthing, designed to prevent collisions by using thrust systems arranged on the pier to slow down a ship moving too fast towards the pier.

[0016] The purpose of the invention is to improve the state of the art.

[0017] The problem is solved by a method for determining an energy input induced by a collision of a floating body with a structure, comprising the following steps: Determining a first distance between the floating body and the structure using a first, land-side distance sensor at a first time point in time, determining a second distance between the floating body and the structure using the first distance sensor at a second time point in time, determining a first parameter of the floating body based on the first distance determined by the first distance sensor and / or based on the second distance determined by the first distance sensor using an evaluation unit, and determining an energy input acting on the structure and induced by the collision based on the first parameter of the floating body using the evaluation unit.

[0018] Advantageously, the method according to the invention directly determines the energy input to the structure based on the parameters of the floating body. Thus, during a docking maneuver, the energy input induced in a collision can be directly calculated using the parameters of the floating body. Predictive and / or subsequent energy input determination can be performed based on these parameters. Structure-specific parameters can be provided for determining the energy input. Additionally or alternatively, historical load data for the structure can be provided for determining the energy input. Finally, current environmental data, such as water depth, wind direction, wind speed, or the like, can be provided for determining the energy input.

[0019] The use of a single distance sensor reduces the installation effort of a technical device according to the invention, which is set up to carry out the method. This advantageously results in low acquisition and operating costs.

[0020] Due to the automated evaluation of the data, the involvement of a specialist is essentially unnecessary or significantly less frequent, which makes the application of the method according to the invention advantageously cost-effective.

[0021] A key aspect of the invention is based in particular on the fact that docking maneuver data of a floating body are recorded and kept available in such a way that, in the event of an accident-like unforeseen event or in anticipation of an accident-like event, a valid data basis is available for evaluating the effects of the accident-like event.

[0022] The following terms should be explained: A "collision" is understood to mean, in particular, the impact of a first body, especially the floating body, on a second body, especially the structure. As a result of a collision, particularly depending on the collision speed and / or the masses colliding, damage may occur to at least one of the colliding bodies. In the case according to the invention, the energy input from a first body to the second body is also influenced by many technical features. It should be noted that the speed of a floating body relative to a stationary object can only be influenced with a certain time delay, and that thus a collision impulse acting in a first direction can only be reduced to a very limited extent by any action of the floating body.

[0023] A "floating object" is understood to mean, in particular, a body that is capable of floating. The floating object is, in particular, a ship. The ship is, in particular, a large vessel. The ship can be a cargo ship, container ship, ferry, RoRo ship, or the like.

[0024] To achieve maneuverability, which is understood to mean the defined movement of the ship, the ship has, in particular, at least a rudder and / or a propulsion system comprising an engine with a propeller and / or water jet propulsion system, or a wind-based propulsion system. The ship may have storage facilities below and above decks for the temporary storage of loose goods and / or goods grouped into cargo units, such as shipping containers.

[0025] The term "structure" refers in particular to a quay, also called a pier, or waterfront. A structure can also be a built element bordering a body of water, such as a tower, especially a breakwater tower and / or lighthouse, or the like. The quay may be located at a port facility or terminal, which may be equipped with appropriate technical facilities for handling goods, such as unloading cranes and / or vehicles for transporting containers.

[0026] The first distance sensor, located on the land side, can be configured to emit a signal, also called a wave, particularly a radar signal. After the signal strikes an object, it is reflected, and the reflected signal is registered again by the first distance sensor. The distance between the first distance sensor and the object is determined based on the time of signal transmission compared to signal reception, also known as time-of-flight (TOF).

[0027] The first distance corresponds in particular to the distance between the floating body and the first distance sensor arranged on the structure and is measured in meters. The first distance is determined in particular at a first time using the first distance sensor.

[0028] The second distance also corresponds to a distance between the floating object and the structure and is determined by the first distance sensor, specifically at a second point in time. From the difference between the second distance and the first distance, taking into account both the first and second points in time, the speed of the floating object relative to the structure can be determined.

[0029] Determining the first distance and determining the second distance are respective steps of the method according to the invention. In a further step of the method, a first parameter of the floating body is determined by means of an evaluation unit based on the determined first distance and / or the determined second distance. The "first parameter of the floating body" can be the approach speed of the floating body with respect to the structure. Additionally or alternatively, the first parameter can be the draft of the floating body. Furthermore, the first parameter can be an acceleration of the floating body, particularly with respect to the structure. Advantageously, the first parameter represents a critical quantity that is relevant in the event of a collision between the floating body and the structure.A critical parameter is, in particular, the weight of the floating body, the speed of the floating body, the direction of propulsion of the floating body from which an angle of the ship relative to the quay can be derived, or the like.

[0030] In a further step of the process, the evaluation unit uses the first parameter to determine, in particular, the induced energy input acting on the structure. Additionally or alternatively, the direction of the induced energy input can be determined. Finally, the area or position of the induced energy input on the quay can be determined. To determine the aforementioned parameters, in addition to the first parameter, the first distance, the second distance, further distances measured with the first distance sensor, further distances measured with additional distance sensors, and / or further derived parameters can be used.

[0031] In one embodiment of the method, this additionally includes the step of determining a distance between the floating object and the structure using a second distance sensor. The second distance sensor is, in particular, arranged horizontally spaced from the first distance sensor. The second distance sensor is, in particular, arranged on the shore side of the quay. The distance determined by the second distance sensor is, in particular, determined at a third time point. This third time point can correspond to the first time point and / or the second time point.

[0032] In a further possible step of the process, the evaluation unit uses the distance determined by the second distance sensor to calculate a second parameter of the floating object. Additionally or alternatively, the first distance can be used to determine the second parameter. The second parameter of the floating object can correspond to the first parameter. Additionally or alternatively, the second parameter can correspond to the approach angle of the floating object relative to the structure. Advantageously, this allows for the prediction of an expected collision position based on the approach angle of the floating object, taking its length into account.

[0033] In a further possible step of the process, the second parameter determined is also used to calculate the energy input induced by the collision. Additionally or alternatively, further parameters can be used to determine the induced energy input, such as environmental conditions, current wind conditions, current wave movements, other floating objects currently in the vicinity, or similar factors. Advantageously, the accuracy of the determination of the induced energy input can be optimized by including a large number of parameters. These parameters can be integrated, in particular, from existing databases, which advantageously reduces the sensor and / or installation effort required.

[0034] In a further embodiment of the method, an additional step involves the evaluation unit determining whether the measured energy input exceeds a predefined maximum value. This predefined maximum value can be stored in memory and made available to the evaluation unit. After detecting that the predefined maximum value has been exceeded, the method can further include a step in which the evaluation unit outputs a signal representing the exceedance of the maximum value. Thus, the output signal can indicate, in particular, impending damage to the structure and / or existing damage to the structure.Advantageously, by sending the signal to a display device and triggering a display from the device, the detection of a potentially imminent damage to the structure is perceptible to a person, such as the captain or the pilot, as well as port employees.

[0035] To detect impending damage to the structure, the evaluation unit can be configured to determine a collision and / or the probability of a collision based on available information regarding the speed and direction of travel of the floating object, and similar parameters. Advantageously, a collision can potentially be averted if the evaluation unit detects an impending collision and issues a corresponding warning.

[0036] In a further embodiment, adding the determined energy input to a program-based analysis software can be an additional step of the method according to the invention. The program-based analysis software can be configured to determine the effect of the energy input on the structure based on the determined energy input and / or other data acquired during the docking and / or undocking maneuvers. For this purpose, the analysis software includes, in particular, a digital model of the structure. Additionally or alternatively, structural information about the structure can be made available to the analysis software. Finally, the analysis software can use and / or utilize AI methods.

[0037] Advantageously, the degree of damage to the structure can be determined by program-based analysis of the impact of energy input. This analysis can be performed very quickly after a collision or even in advance using predictive data. Therefore, it is advantageous that the structure does not need to be closed, provided the program-based analysis indicates a minor or negligible impact on the structure's integrity from the energy input during the collision. Naturally, the results of the program-based impact analysis can also be reviewed by a human.

[0038] In another aspect, the problem is solved by a building protection device which is designed to carry out a method according to the invention.The structural protection device comprises at least one first distance sensor arranged directly or indirectly on the structure and a second distance sensor arranged directly or indirectly on the structure at a spatial distance from the first distance sensor, as well as an evaluation unit connected to the first and second distance sensors via data transmission, wherein the first distance sensor is configured to determine a first distance of a floating body to the structure and the second distance sensor is configured to determine a second distance of the floating body to the structure, wherein the evaluation unit is programmed to derive at least a first parameter of the floating body using the determined first distance and / or the second distance, wherein, based on the first parameter, an energy input acting on the structure can be determined in the event of a collision of the floating body with the structure.

[0039] Advantageously, the structural protection device according to the invention allows for the detection of energy input into a quay based on data obtained during a docking maneuver of a floating object at the quay. Furthermore, the probability of the existing structural integrity of the structure can be advantageously predicted based on the detected energy input. Thus, it is advantageously possible to decide promptly after a collision whether the structure can continue to be used.

[0040] In one embodiment, the structure is a quay, with a corresponding port infrastructure area, such as a port terminal, associated with the quay. Additionally or alternatively, in another embodiment, the floating structure is a ship, which may be configured as a cargo ship, container ship, RoRo ship, or the like.

[0041] By arranging the first and / or second distance sensors, a detection range is established, particularly on the water side. The horizontal spacing between the first and second distance sensors ensures sensor coverage of a first section of the ship's berth, such that the resulting detection ranges of the first and second distance sensors essentially monitor the entire first section of the ship's berth. Additionally or alternatively, a second, third, or further distance sensors can be arranged to cover the first section of the ship's berth.Advantageously, the sensor data from a large number of distance sensors are accumulated by the evaluation unit in such a way that an optimized determination of the speed of the floating body in relation to the structure and / or the angle of the floating body in relation to the structure, also called the direction of advance of the floating body, can be determined.

[0042] Furthermore, by arranging a large number of distance sensors on the quay, an accurate length determination of the floating object can advantageously be achieved using these sensors. Finally, considering the contour of the floating object as determined by the distance sensors, its draft can be calculated. From the draft of the floating object, its weight can be derived. Additionally or alternatively, the length and / or weight of the floating object can be provided from a database. Thus, a large number of parameters can advantageously be determined based on at least one sensor reading from at least one distance sensor.

[0043] In one embodiment, a structural protection device is arranged on the structure. This device can be a fender or similar. Additionally or alternatively, multiple structural protection devices can be arranged on the structure. Advantageously, by considering the extent of the structural protection device when determining the first and / or second distance, the energy input into the device can be determined. In this way, damage to a structural protection device caused by a floating object can be identified, allowing for repairs if a predefined maximum load is exceeded. This ensures that the intended structural protection device corresponds to the actual structural protection device. The structural protection device is taken into account, in particular, by using an offset.

[0044] In one embodiment, the first distance sensor and / or the second distance sensor is, in particular, a radar sensor. Radar sensors emit, in particular, electromagnetic waves that are reflected by objects. By measuring the time the waves take to return to the radar sensor after the time of emission, the distance between the sensor and the object can be calculated.

[0045] Additionally or alternatively, the first distance sensor and / or the second distance sensor can be an ultrasonic sensor, an infrared sensor, a laser distance sensor, a capacitive distance sensor, and / or an inductive distance sensor. Further embodiments, such as implementing the distance sensor as a camera, are conceivable and do not limit the subject matter of the invention. Finally, the first distance sensor can be a radar sensor and the second distance sensor a sensor other than a radar sensor. Advantageously, additional sensor values ​​can optimize the quality of the evaluation of the sensor values. A radar sensor also advantageously provides reliable data under difficult weather conditions, such as fog, so that the building protection device advantageously has a high utilization rate.

[0046] In another embodiment of the structural protection device, the first parameter is the approach speed of the floating body relative to the structure, measured in m / min. A typical approach speed of the floating body relative to the structure during a docking maneuver is 0.5 m / min to 1.5 m / min, although the average speed for larger vessels can also be 5 cm / sec to 17 cm / sec. Additionally or alternatively, the first parameter can be the draft of the floating body. Alternatively or additionally, the first parameter can be the length of the floating body. Finally, the first parameter can be the approach angle of the floating body relative to the structure.All the aforementioned initial parameters can advantageously be determined from the first distance and a second distance, both measured with the first distance sensor, or from the first distance and a distance measured with a second distance sensor. The second distance can additionally or alternatively be determined by initiating a horizontal movement of the first distance sensor, thus changing the measuring range of the first distance sensor over time in a predefined manner.

[0047] In a further embodiment, the evaluation unit can be programmed to perform a structural analysis based on the determined energy input and, in particular, taking into account at least one structural parameter. This structural analysis can, in particular, determine whether the structure is protected under existing regulations. This advantageously allows for the continued use of a quay affected by a collision. Additionally or alternatively, the evaluation unit can be connected to an external system that provides the aforementioned functionality. Finally, the evaluation unit can use and / or utilize AI methods.

[0048] Further features of this aspect, combinations of features and the advantages resulting from them correspond to those in connection with the first-mentioned aspect of the invention.

[0049] In another aspect, the problem is solved by using a building protection device according to the invention, wherein the building protection device is arranged at least partially below a usable area of ​​a port facility, in particular in a wave chamber.

[0050] By arranging the structural protection device below the usable area of ​​the port facility, protection of the structural protection device is advantageously ensured, provided that the structural protection device is positioned vertically behind a water-side forward line of the quay. This arrangement also advantageously allows for simple maintenance and repair of the structural protection device elements when installed below a usable area, as corresponding maintenance walkways can be located on the landward side, and no approach to the structural protection device via the water is necessary for maintenance and repair.

[0051] The other features of this aspect, combinations of features, and the advantages resulting from them correspond to those in connection with the first-mentioned aspect of the invention.

[0052] The invention will now be explained in more detail using exemplary embodiments. These will show... Figure 1 shows a first flowchart of a method according to the invention for detecting an energy input induced by a collision of a floating body with a structure, Figure 2 shows a second flowchart of a method according to the invention, Figure 3 shows a third flowchart of a method according to the invention, Figure 4 shows a fourth flowchart of a method according to the invention, Figure 5 shows a schematic representation of a building protection device, Figure 6 shows a schematic representation of a building protection device from a bird's-eye view, and Figure 7 shows a schematic representation of a side view of a building protection device.

[0053] Using a quay protection device 101 which has a first radar sensor 105, the method can be carried out according to Figure 1The following steps are carried out, wherein in step 901 a first distance E1 between a ship 113 and a quay 103 is determined at a first time point using the first radar sensor 105. In step 903, a second distance between the ship 113 and the quay 103 is determined at a second time point using the first radar sensor 105. Based on the first distance E1 determined by the first radar sensor 105 and based on the second distance determined by the first radar sensor 105, a first parameter of the ship 113 is determined in step 905a using a control unit 109, and in step 907, in the event of a collision between the ship 113 and the quay 103, the energy input acting on the quay 103 is determined based on the first parameter using the control unit 109.

[0054] Using a second radar sensor 107, a third distance E3 between the ship 113 and the quay 103 is additionally determined in step 903b using the second radar sensor 107. Based on the third distance E3, a second parameter of the ship 113 is determined in step 905b. To determine the second parameter, in the exemplary embodiment in Figure 2 Only the third distance E3 is used. Alternatively, the first distance E1 can be used to determine the second parameter 905b. In step 908, the second parameter is additionally integrated into step 907, so that the energy input is determined based on the first and second parameters using the control unit 109.

[0055] In another embodiment of the method, which is described in Figure 3As shown, in step 909, control unit 109 additionally determines that the measured energy input exceeds a predefined maximum value. In a further step 911, control unit 109 outputs a signal representing the determination that the measured energy input has exceeded a predefined maximum value.

[0056] In another embodiment, the signal indicating that the determined energy input exceeds a predefined maximum value can be used to trigger the addition of the determined energy input to a program-based analysis in step 913. In step 915, a program-based determination of the effect of the energy input on quay 103 can be performed.

[0057] The quay protection device 101 includes, in particular, the first radar sensor 105 and the second radar sensor 107, which are arranged on the quay 103 such that a detection range of the radar sensors 105 and 107 is established on the water side. The first radar sensor 105 and the second radar sensor 107 are connected to the control unit 109 by means of a cable 111. Alternatively, the first radar sensor 105 and / or the second radar sensor 107 can transmit data wirelessly to the control unit 109.

[0058] A body of water W is located in front of quay 103. Ship 113 is floating on this body of water W with a current draft, a current angle relative to quay 103, and a current speed relative to quay 103. The first distance E1 can be determined using the first radar sensor 105. The third distance E3 can be determined using the second radar sensor 107.

[0059] Two fenders 115 are additionally arranged at the quay. The fenders 115 serve to protect the quay 103 during the docking of the ship 113 and from movements of a moored ship 113. A port terminal 119 adjoins the quay 103 on the landward side, which is equipped in particular with technical equipment for loading and unloading a ship 113. A wave chamber 117 is arranged below the port terminal 119, which is flooded, especially during storm surges, and provides structural storm surge protection for the port terminal 119, insofar as the waves of the water W introduce energy into the wave chamber 117. In an embodiment according to Figure 7 At least the first radar sensor 105 is arranged inside the wave chamber 117.

[0060] The control unit 109 has a data input 141, an evaluation unit 143, and a data output 145. The first radar sensor 105 and the second radar sensor 107 are connected to the evaluation unit 143 of the control unit 109, specifically via the data input 141. Additionally, the control unit 109 can be connected via the data input 141 to a database of historical data 121, a database of weather data 123, a database of ship data 125, and / or a database of structural parameters 127. An antenna 137 is arranged at the data output 145 of the control unit 109. Using the antenna 137, the control unit 109 can transmit data wirelessly via the data output 145. The control unit 109 can also have an antenna 137 at the data input 141 for receiving data.

[0061] The control unit 109 is connected to a memory 131 via data output 145. The control unit 109 is configured to store the acquired data and information in memory 131, allowing external systems to access the stored data. Furthermore, the control unit 109 is connected to a display 135 via data output 145 and a cable 111. In this way, the acquired data and information can be transmitted from the control unit 109 to the display 135 for display. The quay protection device 101 can also be connected to an indicator lamp 133. For this purpose, the indicator lamp 133 has an antenna 137, enabling the control unit 109 to transmit a radio signal to the indicator lamp 133 via data output 145 and the antenna 137.Upon receiving the signal, the indicator lamp 133 is designed to emit a signal that is visually perceptible to a person. Reference symbol list

[0062] 101 Quay protection device 103 Quay 105 First radar sensor 107 Second radar sensor 109 Control unit 111 Cable 113 Ship 115 Fender 117 Shaft chamber 119 Port terminal 121 Historical data database 123 Weather data database 125 Ship data database 127 Structural parameter database 131 Memory 133 Warning lamp 135 Display 137 Antenna 141 Data input 143 Evaluation unit 145 Data output Water E1 First distance E3 Third distance 901 Determining a first distance 903a Determining a second distance 903b Determining a third distance 905a Determining a first parameter 905b Determining a second parameter 907 Detecting an energy input 908 Adding a second parameter 909 Detecting a maximum value exceedance 911 Outputting a signal 913 Adding energy input 915 Determining an effect

Claims

1. Method for determining an energy input induced by a collision of a floating body (113) with a structure (103), comprising the steps of: - determining (901) a first distance (E1) between the floating body (113) and the structure (103) using a first, land-side distance sensor (105) at a first time point, - determining (903a) a second distance between the floating body (113) and the structure (103) using the first distance sensor (105) at a second time point,- Determining (905a) a first parameter of the floating body (113) based on the first distance (E1) determined by means of the first distance sensor (105) and / or based on the second distance determined by means of the first distance sensor (105) using an evaluation unit (109) and - Determining (907) an energy input acting on the structure (103) and induced by the collision based on the first parameter of the floating body (113) using the evaluation unit (109).

2. Method according to the preceding claim, further comprising: - Determining (903b) a first distance (E3) between the floating body (113) and the structure (103) by means of a second land-side distance sensor (107) spaced horizontally from the first distance sensor (105) at a third time point in time, - Determining (905b) a second parameter of the floating body (113) based on the first distance (E) determined by means of the second distance sensor (107), the first distance (E1) determined by means of the first distance sensor (105) and / or the second distance determined by means of the first distance sensor (105) by means of the evaluation unit (109) and - Including (908) the second parameter to determine (907) the energy input acting on the structure (103) and induced by the collision by means of the evaluation unit (109).

3. Method according to one of the preceding claims, wherein the first parameter of the floating body (113) and / or the second parameter of the floating body (113) is an approach speed of the floating body (113) to the structure (103), a structure-related approach angle of the floating body (113), a draft of the floating body (113) and / or an acceleration of the floating body (113).

4. Method according to one of the preceding claims, further comprising: - Determining (909) by means of the evaluation unit (109) that the determined energy input exceeds a predefined maximum value, - Outputting a signal (911) by means of the evaluation unit (109), wherein the signal represents an impending damage to the structure (103) and / or existing damage to the structure (103).

5. Method according to one of the preceding claims, further comprising: - Adding (913) the determined energy input into a program-based analysis software in which a digital image (127) of the structure (103) is present, - Program-based determination (915) of an effect of the energy input on the structure (103) using the analysis software.

6. Method according to one of the preceding claims, wherein the structure (103) is a quay and the floating body (113) is a ship.

7. A building protection device (101) configured to perform a method according to one of claims 1-6, comprising at least one first distance sensor (105) arranged directly or indirectly on the building (103) and a second distance sensor (107) spatially spaced from the first distance sensor (105) and arranged directly or indirectly on the building (103), as well as an evaluation unit (109) connected (111, 137) to the first distance sensor (105) and the second distance sensor (107) via data transmission, wherein the first distance sensor (105) is configured to determine a first distance (E1) of a floating body (113) to the building (103) and the second distance sensor (107) is configured to determine a third distance (E3) of the floating body (113) to the building (103). characterized by the fact thatThe evaluation unit (109) is programmed to derive at least a first parameter of the floating body (113) using the determined first distance (E1) and / or the third distance (E3), whereby, based on the first parameter, an energy input acting on the structure (103) in the event of a collision of the floating body (113) with the structure (103) can be determined.

8. Structural protection device (101) according to claim 7, wherein the structure (103) is a quay and the floating body (113) is a ship, wherein a detection range of the first distance sensor (105) and / or a detection range of the second distance sensor (105) is or are set up to observe a first ship berth area of ​​the quay (103).

9. Building protection device (101) according to claim 7 or 8, wherein a building protection device (115) is arranged on the building (103) and a measuring range from the first distance sensor (105) and / or second distance sensor (107) takes into account an extension of the building protection device (115).

10. Building protection device (101) according to claims 7 to 9, wherein the first distance sensor (105) and / or the second distance sensor (107) is a radar sensor.

11. Structural protection device (101) according to claims 7 to 10, wherein the first parameter is an approach speed of the floating body (113) in relation to the structure (103), in particular measured in m / s, a draft of the floating body (113), a length of the floating body (113) and / or an approach angle of the floating body (113) in relation to the structure (103).

12. Building preservation protection device (101) according to claims 7 to 11, wherein the evaluation unit (109) is further configured programmatically to carry out a building analysis on the basis of the determined energy input and in particular taking into account at least one building parameter (127) in order to determine the preservation status of the building (103) on the basis of the building analysis.

13. Use of a structural protection device (101) according to one of claims 7 - 12, wherein the structural protection device (101) is arranged at least partially below a usable area of ​​a port facility (119), in particular in a wave chamber (117).

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