CN114935335A - Ship cable loosening detection method and device, electronic equipment and storage medium - Google Patents

Ship cable loosening detection method and device, electronic equipment and storage medium Download PDF

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Publication number
CN114935335A
CN114935335A CN202210577693.5A CN202210577693A CN114935335A CN 114935335 A CN114935335 A CN 114935335A CN 202210577693 A CN202210577693 A CN 202210577693A CN 114935335 A CN114935335 A CN 114935335A
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target ship
motion
condition
determining
mean value
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汤志宏
梁海欣
徐昌举
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Guangdong ePropulsion Technology Co Ltd
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Guangdong ePropulsion Technology Co Ltd
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Priority to CN202210577693.5A priority Critical patent/CN114935335A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Abstract

The invention discloses a method and a device for detecting cable looseness of a ship, electronic equipment and a storage medium. The method comprises the following steps: acquiring motion information of a target ship under the condition that the target ship is in a parking state; judging the motion information of the target ship based on the motion judging conditions; and under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition, determining that the mooring rope of the target ship is in a loose state, and giving an alarm. According to the invention, whether the ship mooring rope is in a loose state is judged by detecting the motion information of the ship, so that the risk of loss or collision damage of the ship caused by loosening of the mooring rope is reduced, and the safety of berthing of the ship on the shore is improved.

Description

Ship cable loosening detection method and device, electronic equipment and storage medium
Technical Field
The present invention relates to the field of ship monitoring technologies, and in particular, to a method for detecting loosening of a cable of a ship, a device for detecting loosening of a cable of a ship, an electronic device, and a computer-readable storage medium.
Background
In order to ensure the safety of the ship when the ship is parked on a trestle, a wharf or a shore, the ship needs to be firmly fixed on the shore, so that the ship is prevented from being lost or damaged due to the impact of sea waves.
When a ship is in shore, a common method is to throw a ship anchor into water or tie a cable of the ship to a shore fixing frame to fix the ship to the shore.
However, when the mooring rope is used to fix the ship to the shore, the mooring rope is not firmly bound or loosened due to external force (such as the ship is driven to move by the impact of sea waves) after being firmly bound, and the risk of losing or damaging the ship exists.
Disclosure of Invention
The invention provides a ship cable loosening detection method, a ship cable loosening detection device, electronic equipment and a computer readable storage medium, which are used for solving the problem that a ship is lost or damaged by collision under the condition that a ship cable is loosened due to external force after being unbound and firm or bound.
According to an aspect of the present invention, there is provided a cable loosening detection method for a ship, comprising:
acquiring motion information of a target ship under the condition that the target ship is in a parking state;
determining motion information of the target vessel based on a motion determination condition;
and under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition, determining that the cable of the target ship is in a loose state, and giving an alarm.
According to another aspect of the present invention, there is provided a cable loosening detection device for a ship, comprising:
the motion information acquisition module is used for acquiring the motion information of the target ship under the condition that the target ship is in a parking state;
and the looseness detection module is used for judging the motion information of the target ship based on motion judgment conditions, determining that the mooring rope of the target ship is in a looseness state and giving an alarm under the condition that the judgment result of the motion information of the target ship meets the motion judgment conditions.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform a method of line slack detection for a vessel according to any of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement a method of detecting a slack in a line of a vessel according to any one of the embodiments of the present invention when the computer instructions are executed.
According to the technical scheme of the embodiment of the invention, whether the ship mooring rope is in a loose state or not is judged by detecting the motion information of the ship, so that the risk of loss or collision damage of the ship caused by loosening of the mooring rope is reduced, and the safety of berthing of the ship on the shore is improved.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for detecting loosening of a cable of a ship according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting loosening of a cable of a ship according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for detecting loosening of a cable of a ship according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cable loosening detection device for a ship according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first lateral threshold", "second lateral threshold", and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing similar objects and are not necessarily used for describing a specific order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a flowchart of a method for detecting a loosening of a cable of a ship according to an embodiment of the present invention, where the embodiment is applicable to a case where a cable of a ship is loosened due to an external force after being unbound and fastened, and the method may be performed by a cable loosening detection device of a ship, where the cable loosening detection device of a ship may be implemented in a form of hardware and/or software, and the cable loosening detection device of a ship may be configured in an electronic device according to an embodiment of the present invention. As shown in fig. 1, the method includes:
and S110, acquiring the motion information of the target ship under the condition that the target ship is in a parking state.
And S120, judging the motion information of the target ship based on the motion judging conditions.
And S130, under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition, determining that the cable of the target ship is in a loose state, and giving an alarm.
The motion information of the target ship refers to the motion information of the ship subjected to the cable loosening detection under the condition of being stopped at a shore, a wharf or a trestle due to the influence of an external force factor, specifically, the motion information may be the distance of the ship from an initial stop point, the moving speed or acceleration of the ship in each direction, or the swing amplitude of the ship, and is not limited to the above. The external force factor may be the impact force of sea waves on the ship or the wind force of sea wind on the ship, which is not limited. Exemplarily, when a ship stops at a shore, a wharf or a trestle, the ship can move within a certain movement range under the influence of acting forces such as wind force of sea wind, impact force of sea waves and pulling force of cables, the movement information within the movement range has corresponding threshold values, the moving speed, the acceleration, the displacement, the angular velocity, the swing amplitude and the like of the ship in each direction within the movement range are measured through measuring equipment, and then are compared with the corresponding threshold values to judge whether the movement of the ship exceeds the threshold values, if the movement exceeds the threshold values, the cables of a target ship are judged to be in a loose state, and an alarm is given; the measuring device may include, but is not limited to, an inertial sensor, a laser displacement sensor, and the like.
Alternatively, the motion information may be a moving speed, an acceleration, a displacement, an angular velocity, a swing amplitude, and the like in at least one direction, for example, the motion information includes at least one of a moving speed, an acceleration, a displacement, an angular velocity, a swing amplitude in a transverse direction, or the motion information includes at least one of a moving speed, an acceleration, a displacement, an angular velocity, a swing amplitude in a longitudinal direction. Through obtaining the motion information of boats and ships in all directions, and then compare with the threshold value that each motion information corresponds and confirm whether the hawser is not hard up, improved the not hard up comprehensive of detecting of hawser, and then improved the security that boats and ships stopped.
In some embodiments, the motion information of the target vessel includes acceleration information including at least one of lateral acceleration and longitudinal acceleration. Further, the acceleration information comprises at least one of real-time transverse acceleration and real-time longitudinal acceleration of the ship; or the acceleration information comprises at least one of a transverse acceleration in a preset time period and a longitudinal acceleration in the preset time period; alternatively, the acceleration information includes at least one of lateral acceleration for each different time period and longitudinal acceleration for each different time period.
In the embodiment, the motion determination condition is a condition for determining that the mooring rope of the ship is in a loose state, the motion information of the target ship is determined based on the mooring rope loose condition, and when the motion information of the target ship meets the mooring rope loose condition, the mooring rope of the target ship is determined to be in the loose state and an alarm is given. For example, the motion determination condition may include a determination threshold corresponding to the motion information, and for example, the motion determination condition may be that the motion information satisfies the motion determination condition if the motion information is greater than the determination threshold. It should be noted that, when the motion information includes a plurality of pieces of parameter information, the motion determination condition includes a determination threshold corresponding to each piece of parameter information, where different pieces of parameter information may be different types of parameter information, and may also be the same type of parameter information in different directions. Optionally, the motion determination condition may be that the motion determination condition is satisfied when one or more of the specified pieces of parameter information are greater than the corresponding determination threshold. The motion determination condition may be preset as needed, and is not limited thereto.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: and comparing the transverse acceleration of the target ship with a first transverse threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration is greater than the first transverse threshold.
The first lateral threshold is a threshold of the lateral acceleration of the target ship, and when the lateral acceleration of the target ship exceeds the threshold of the lateral acceleration of the target ship, the motion determination condition is satisfied, and the threshold of the lateral acceleration of the target ship is set based on the target ship. In this embodiment, the transverse acceleration of the target ship is compared with the transverse acceleration threshold in real time, and under the condition that the transverse acceleration of the target ship is greater than the transverse acceleration threshold, it is determined that the judgment result of the motion information of the target ship meets the motion judgment condition.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: and comparing the longitudinal acceleration of the target ship with a first longitudinal threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration is greater than the first longitudinal threshold.
In the embodiment, the longitudinal acceleration of the target ship acquired by the measuring equipment is compared with the longitudinal acceleration threshold, and under the condition that the longitudinal acceleration of the target ship is greater than the longitudinal acceleration threshold, the judgment result of the motion information of the target ship is determined to meet the motion judgment condition.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: comparing the transverse acceleration of the target ship with a first transverse threshold, comparing the longitudinal acceleration of the target ship with a first longitudinal threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration is greater than the first transverse threshold and the longitudinal acceleration is greater than the first longitudinal threshold.
In this embodiment, the transverse acceleration and the longitudinal acceleration of the target ship in the transverse direction are obtained through the measuring device, the transverse acceleration of the target ship is compared with the threshold of the transverse acceleration, the longitudinal acceleration of the target ship is compared with the threshold of the longitudinal acceleration, and under the condition that the transverse acceleration is greater than the threshold of the transverse acceleration and the longitudinal acceleration is greater than the threshold of the longitudinal acceleration, it is determined that the determination result of the motion information of the target ship meets the motion determination condition. And determining whether the motion information meets the motion judgment condition or not by comparing the acceleration of the target ship in each direction with the acceleration threshold value in the corresponding direction, and determining whether the motion information of the target ship meets the motion judgment condition or not from the acceleration angle of the target ship so as to determine whether the ship cable is loosened.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: determining a current transverse acceleration mean value of the target ship based on the transverse acceleration in a preset time period before the current moment, comparing the transverse acceleration mean value with a second transverse threshold value, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration mean value is larger than the second transverse threshold value.
The preset time period is a preset time period convenient for determining that the cable is in a loose state, specifically, the preset time period may be a time period calculated according to a motion condition of the simulated ship when the ship is parked, may be a time period preferred from historical preset time periods of ship cable loosening detection, or may be a time period set by a user based on experience, and is not limited herein. In practical applications of the present invention, the preset time period may be set based on practical situations. In this embodiment, the measurement device acquires the lateral acceleration within a preset time period, calculates a corresponding lateral acceleration mean value based on the lateral acceleration within the preset time period, compares the lateral acceleration mean value with the second lateral threshold value, and determines that the determination result of the motion information of the target ship satisfies the motion determination condition when the lateral acceleration mean value is greater than the second lateral threshold value. And determining whether the motion information meets the motion judgment condition or not by comparing the average value of the transverse acceleration of the target ship with the threshold value of the average value of the acceleration within a preset time period, and further determining whether the mooring rope of the target ship is loosened.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: and determining the current longitudinal acceleration mean value of the target ship based on the longitudinal acceleration in the preset time period before the current moment, comparing the longitudinal acceleration mean value with a second longitudinal threshold value, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration mean value is greater than the second longitudinal threshold value.
In this embodiment, the measurement device obtains the longitudinal acceleration within a preset time period, calculates a corresponding longitudinal acceleration mean value based on the longitudinal acceleration within the preset time period, compares the longitudinal acceleration mean value with the threshold of the longitudinal acceleration mean value, and determines that the determination result of the motion information of the target ship satisfies the motion determination condition when the longitudinal acceleration mean value is greater than the threshold of the longitudinal acceleration mean value. And determining whether the motion information meets the motion judgment condition or not by comparing the average acceleration value of the target ship in the longitudinal direction with the threshold value of the average acceleration value within a preset time period, and further determining whether the mooring rope of the target ship is loosened or not.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: determining a current transverse acceleration mean value of the target ship based on a transverse acceleration in a preset time period before the current time, determining a current longitudinal acceleration mean value of the target ship based on a longitudinal acceleration in a preset time period before the current time, and determining that a judgment result of the motion information of the target ship meets a motion judgment condition under the condition that the transverse acceleration mean value is greater than a second transverse threshold value and the longitudinal acceleration mean value is greater than a second longitudinal threshold value.
In this embodiment, the measurement device obtains a lateral acceleration and a longitudinal acceleration within a preset time period, calculates a lateral acceleration mean value and a longitudinal acceleration mean value corresponding to the lateral acceleration and the longitudinal acceleration within the preset time period, respectively, compares a threshold of the lateral acceleration mean value with the threshold of the lateral acceleration mean value, and compares the longitudinal acceleration mean value with the threshold of the longitudinal acceleration mean value, and determines that a determination result of motion information of the target ship satisfies a motion determination condition under the condition that the lateral acceleration mean value is greater than the threshold of the lateral acceleration mean value and the condition that the longitudinal acceleration mean value is greater than the threshold of the longitudinal acceleration mean value. And determining whether the motion information meets the motion judgment condition or not by comparing the acceleration mean value of the target ship in each direction with the threshold value of the acceleration mean value in a preset time period, and determining whether the motion information of the target ship meets the motion judgment condition or not from the angle of the acceleration mean value of the target ship so as to determine whether the cable of the target ship is loosened.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: and determining the transverse acceleration mean value of the acceleration information in each time period in a plurality of time periods, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration mean value of the later time period is larger than the transverse acceleration mean value of the former time period in any two adjacent time periods.
The time interval of each time period can be set preferentially according to the historical parking record of the target ship, can also be set specifically according to the current day environment (such as rainstorm weather and typhoon weather), and can also be set according to the parking state of the simulation software simulation target ship. In this embodiment, the lateral acceleration in each time period is obtained through the measurement device, the lateral acceleration mean value in the corresponding time period is calculated based on the lateral acceleration in each time period, and the lateral acceleration mean values in any two adjacent time periods are compared. And if the mean value of the transverse acceleration of the next time period is larger than the mean value of the transverse acceleration of the previous time period in any two adjacent time periods, determining that the motion information judgment result of the target ship meets the motion judgment condition. And determining whether the judgment result of the motion information meets the judgment condition or not by comparing the acceleration mean values of the target ship in any two adjacent time periods in the transverse direction, and further determining whether the cable of the target ship is loosened or not.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: and determining the longitudinal acceleration mean value of the acceleration information in each time period in a plurality of time periods, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration mean value of the later time period is greater than the longitudinal acceleration mean value of the former time period in any two adjacent time periods.
In this embodiment, the longitudinal acceleration in each time period is obtained through the measurement device, the longitudinal acceleration mean value in the corresponding time period is calculated based on the longitudinal acceleration in each time period, and the longitudinal acceleration mean values in any two time periods are compared. And if the mean value of the longitudinal acceleration of the next time period is larger than the mean value of the longitudinal acceleration of the previous time period in any two adjacent time periods, determining that the motion information judgment result of the target ship meets the motion judgment condition. And determining whether the judgment result of the motion information meets the judgment condition or not by comparing the acceleration mean values of the target ship in any two adjacent time periods in the longitudinal direction, and further determining whether the cable of the target ship is loosened or not.
Optionally, the determining the motion information of the target ship based on the motion determination condition includes: determining a transverse acceleration mean value of the acceleration information in each time period in the multiple time periods, and determining a longitudinal acceleration mean value of the acceleration information in each time period in the multiple time periods, wherein in any two adjacent time periods, under the condition that the transverse acceleration mean value in the later time period is larger than the transverse acceleration mean value in the previous time period, and the longitudinal acceleration mean value in the later time period is larger than the longitudinal acceleration mean value in the previous time period, the judgment result of the motion information of the target ship is determined to meet the motion judgment condition.
In this embodiment, the acceleration in the transverse direction and the acceleration in the longitudinal direction in each time period in the motion information are obtained through the measuring device, the transverse acceleration mean value and the longitudinal acceleration mean value in each corresponding time period are respectively calculated based on the transverse acceleration and the longitudinal acceleration in each time period, and when the transverse acceleration mean value in the later time period is greater than the transverse acceleration mean value in the earlier time period and the longitudinal acceleration mean value in the later time period is greater than the longitudinal acceleration mean value in the earlier time period in any two adjacent time periods, it is determined that the determination result of the motion information of the target ship meets the motion determination condition. And determining whether the judgment result of the motion information meets the judgment condition or not by comparing the acceleration mean values of the target ship in any two adjacent time periods in all directions, and further determining whether the cable of the target ship is loosened or not.
And under the condition that the motion information of the target ship meets the motion judgment condition, namely under the condition that the motion information of the target ship meets the condition that the ship mooring rope is in a loosening state, determining that the mooring rope of the target ship is in the loosening state, and generating alarm information and giving an alarm. Alternatively, the warning may be a warning light that turns red and sounds a warning bell, or may be a warning message to the vessel supervisor's control device that the cable is loose.
According to the technical scheme, the motion information of the target ship is detected in real time to judge whether the mooring rope of the target ship is in a loosening state or not, and an alarm is given when the mooring rope of the ship is loosened, so that the loss of the ship caused by loosening of the mooring rope is reduced, and the safety of stopping the ship is improved.
Example two
Fig. 2 is a flowchart of a method for detecting a loosening of a cable of a ship according to a second embodiment of the present invention, where the second embodiment is one of alternatives for detecting a state of a cable of a ship when a determination result of motion information of a target ship in the above embodiments does not satisfy a motion determination condition. As shown in fig. 2, the method includes:
s210, acquiring the motion information of the target ship under the condition that the target ship is in a parking state.
And S220, judging the motion information of the target ship based on the motion judging conditions.
And S230, under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition, determining that the cable of the target ship is in a loose state, and giving an alarm.
And when the motion information judgment result of the target ship does not meet the motion judgment condition, judging that the mooring rope is in a non-loosening state according to the motion information judgment result of the target ship, and in order to avoid the problems of inaccurate judgment result or careless judgment caused by accidents, carrying out verification detection by other mooring rope loosening detection methods when the motion information judgment result of the target ship does not meet the motion judgment condition, and if the verification detection result is that the mooring rope is loosened, determining that the mooring rope is in a loosening state and giving an alarm.
On the basis of the foregoing embodiment, optionally, in a case where the determination result of the motion information of the target ship does not satisfy the motion determination condition, as shown in fig. 2, the method further includes:
s240, under the condition that the judgment result of the motion information of the target ship does not meet the motion judgment condition, obtaining the current positioning information of the target ship, and comparing the current positioning information with the initial positioning information of the target ship in the parking state.
And S250, under the condition that the current positioning information is out of the parking range of the initial positioning information, determining that the cable of the target ship is in a loose state and alarming.
The current positioning information refers to current position information of the ship obtained based on the positioning device, optionally, the positioning device may be a GPS locator, which is not limited to this, and the initial positioning information refers to position information of the ship obtained based on positioning by the positioning device at the beginning of parking. In this embodiment, the specific position of the ship body is used as the positioning point, the positioning information of the ship is obtained in real time through the positioning device, the real-time positioning information of the ship is compared with the initial positioning information of the ship at the beginning of parking, and when the current positioning information is outside the initial positioning information, it is determined that the mooring rope of the target ship is in a loose state, and an alarm is given. The specific position may be, but is not limited to, a bow, a stern, a cabin top, and the like.
According to the technical scheme, under the condition that the judgment result of the motion information of the target ship does not meet the motion judgment condition, the judgment result is verified by adopting a method for positioning the position of the target ship, and meanwhile, whether the mooring rope of the target ship is in a loosening state or not is determined, so that the completeness of the loosening detection of the mooring rope of the ship is improved, and the safety of the ship parking is further improved.
EXAMPLE III
Fig. 3 is a flowchart of a method for detecting a loosening of a cable of a ship according to a third embodiment of the present invention, where this embodiment is one of alternatives for detecting a state of a cable of a ship when a determination result of motion information of a target ship in the foregoing embodiment does not satisfy a motion determination condition. As shown in fig. 3, the method includes:
and S310, acquiring the motion information of the target ship under the condition that the target ship is in the parking state.
And S320, judging the motion information of the target ship based on the motion judging conditions.
And S330, determining that the mooring rope of the target ship is in a loose state and giving an alarm under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition.
On the basis of the foregoing embodiment, optionally, in a case where the determination result of the motion information of the target ship does not satisfy the motion determination condition, as shown in fig. 3, the method further includes:
s340, under the condition that the judgment result of the motion information of the target ship does not meet the motion judgment condition and the target ship enters a parking state, receiving a verification signal transmitted by the management equipment based on the target transmission power, and determining first signal receiving strength of the verification signal.
And S350, in the parking process of the target ship, receiving a verification signal transmitted by the management equipment based on the target transmitting power, and determining a second signal receiving strength of the verification signal.
And S360, when the second signal receiving intensity is smaller than the minimum value of the corresponding parking signal range of the first signal receiving intensity, determining that the mooring rope of the target ship is in a loose state, and giving an alarm.
The first signal reception strength refers to the signal reception strength of the verification signal received by the target ship in the parking state, and similarly, the second signal reception strength refers to the signal reception strength of the verification signal received by the target ship in the parking process of the target ship. In this embodiment, the receiving management device determines the signal receiving strength of the verification signal based on the verification signal transmitted by the target transmitting power, determines the signal receiving strength of the verification signal received by the target ship when the target ship enters the parking state as a first signal receiving strength, determines the signal receiving strength of the verification signal received by the target ship during the parking process as a second signal receiving strength, and determines that the cable of the target ship is in a loose state and alarms when the second signal receiving strength is smaller than the minimum value of the range of the parking signal corresponding to the first signal receiving strength. The management device may be, but is not limited to, a signal transmitter for transmitting a verification signal of the target transmission power, where the verification signal of the target transmission power is a signal with fixed transmission power, and the signal strength of the transmission signal may be attenuated continuously when the transmission signal propagates in the transmission medium, so that in this embodiment, the distance between the ship and the management device is represented by the signal receiving strength of the received verification signal, and when the signal receiving strength during the parking process of the ship is less than the minimum value of the range of the receiving strength of the parking signal in the parking state, it is determined that the cable of the target ship is in a loose state and an alarm is given.
According to the technical scheme, under the condition that the judgment result of the motion information of the target ship does not meet the motion judgment condition, the characteristic that the signal intensity is attenuated when the transmitting signal is transmitted in the transmission medium is utilized, the judgment result is verified based on the signal receiving intensity, and meanwhile whether the mooring rope of the target ship is in a loosening state or not is determined, so that the comprehensiveness of the loosening detection of the mooring rope of the ship is improved, and the safety of the ship parking is further improved.
Example four
Fig. 4 is a schematic structural diagram of a cable loosening detection device for a ship according to a fourth embodiment of the present invention. As shown in fig. 4, the apparatus includes:
a motion information obtaining module 410, configured to obtain motion information of the target ship when the target ship is in a parking state;
and the looseness detecting module 420 is used for judging the motion information of the target ship based on the motion judging condition, and determining that the mooring rope of the target ship is in a looseness state and giving an alarm under the condition that the judging result of the motion information of the target ship meets the motion judging condition.
Optionally, the motion information of the target vessel includes acceleration information, and the acceleration information includes at least one of lateral acceleration and longitudinal acceleration.
On the basis of the above embodiment, optionally, the looseness detecting module 420 is configured to:
comparing the transverse acceleration of the target ship with a first transverse threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration is greater than the first transverse threshold; alternatively, the first and second electrodes may be,
comparing the longitudinal acceleration of the target ship with a first longitudinal threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration is greater than the first longitudinal threshold; alternatively, the first and second electrodes may be,
comparing the transverse acceleration of the target ship with a first transverse threshold, comparing the longitudinal acceleration of the target ship with a first longitudinal threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration is greater than the first transverse threshold and the longitudinal acceleration is greater than the first longitudinal threshold.
On the basis of the above embodiment, optionally, the looseness detecting module 420 is configured to:
determining a current transverse acceleration mean value of the target ship based on the transverse acceleration in a preset time period before the current moment, comparing the transverse acceleration mean value with a second transverse threshold value, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration mean value is larger than the second transverse threshold value; alternatively, the first and second electrodes may be,
determining a current longitudinal acceleration mean value of the target ship based on longitudinal acceleration in a preset time period before the current time, comparing the longitudinal acceleration mean value with a second longitudinal threshold value, and determining that a judgment result of motion information of the target ship meets a motion judgment condition under the condition that the longitudinal acceleration mean value is larger than the second longitudinal threshold value; alternatively, the first and second electrodes may be,
determining a current transverse acceleration mean value of the target ship based on a transverse acceleration in a preset time period before the current time, determining a current longitudinal acceleration mean value of the target ship based on a longitudinal acceleration in a preset time period before the current time, and determining that a judgment result of the motion information of the target ship meets a motion judgment condition under the condition that the transverse acceleration mean value is greater than a second transverse threshold value and the longitudinal acceleration mean value is greater than a second longitudinal threshold value.
On the basis of the above embodiment, optionally, the looseness detecting module 420 is configured to:
determining the transverse acceleration mean value of the acceleration information in each time period in a plurality of time periods, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration mean value of the next time period is larger than the transverse acceleration mean value of the previous time period in any two adjacent time periods; alternatively, the first and second electrodes may be,
determining a longitudinal acceleration mean value of acceleration information in each time period in a plurality of time periods, and determining that a judgment result of motion information of a target ship meets a motion judgment condition under the condition that the longitudinal acceleration mean value of a later time period is larger than the longitudinal acceleration mean value of a previous time period in any two adjacent time periods; alternatively, the first and second electrodes may be,
determining a transverse acceleration mean value of the acceleration information in each time period in the multiple time periods, and determining a longitudinal acceleration mean value of the acceleration information in each time period in the multiple time periods, wherein in any two adjacent time periods, under the condition that the transverse acceleration mean value in the later time period is larger than the transverse acceleration mean value in the previous time period, and the longitudinal acceleration mean value in the later time period is larger than the longitudinal acceleration mean value in the previous time period, the judgment result of the motion information of the target ship is determined to meet the motion judgment condition.
On the basis of the above embodiment, optionally, the apparatus further includes:
the first verification detection module is used for acquiring the current positioning information of the target ship under the condition that the judgment result of the motion information of the target ship does not meet the motion judgment condition, and comparing the current positioning information with the initial positioning information of the target ship in a parking state; and under the condition that the current positioning information is positioned outside the parking range of the initial positioning information, determining that the cable of the target ship is in a loose state, and alarming.
On the basis of the above embodiment, optionally, the apparatus further includes:
the second verification detection module is used for receiving a verification signal transmitted by the management equipment based on the target transmitting power and determining the first signal receiving strength of the verification signal under the condition that the judgment result of the motion information of the target ship does not meet the motion judgment condition and the target ship enters a parking state; during the parking process of the target ship, receiving a verification signal transmitted by the management equipment based on the target transmitting power, and determining a second signal receiving strength of the verification signal; and when the second signal receiving intensity is smaller than the minimum value of the parking signal range corresponding to the first signal receiving intensity, determining that the cable of the target ship is in a loose state, and giving an alarm.
The ship cable loosening detection device provided by the embodiment of the invention can execute the ship cable loosening detection method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM)12, a Random Access Memory (RAM)13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the method for detecting loosening of rope of a ship according to any of the above embodiments may be implemented as the computer program. The processor 11 may perform various appropriate actions and processes according to a computer program stored in a Read Only Memory (ROM)12 or a computer program loaded from a storage unit 18 into a Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, or the like.
EXAMPLE six
The embodiment of the disclosure provides a computer-readable storage medium, on which a computer program is stored, and the program is executed by a processor to implement the charging control method of the ship provided by any one of the embodiments.
Illustratively, the computer-readable medium carries one or more computer programs which, when executed by a processor, cause the processor to perform the steps of:
acquiring motion information of a target ship under the condition that the target ship is in a parking state;
judging the motion information of the target ship based on the motion judging conditions;
and under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition, determining that the cable of the target ship is in a loose state, and giving an alarm.
It should be noted that the computer readable medium in the present disclosure may be a computer readable signal medium or a computer readable storage medium or any combination of the two. Computer-readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A method of detecting cable loosening in a marine vessel, comprising:
under the condition that a target ship is in a parking state, acquiring motion information of the target ship;
determining motion information of the target vessel based on a motion determination condition;
and under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition, determining that the cable of the target ship is in a loose state, and giving an alarm.
2. The method of claim 1, wherein the motion information of the target vessel comprises acceleration information comprising at least one of lateral acceleration and longitudinal acceleration.
3. The method according to claim 2, wherein the determining motion information of the target vessel based on the motion determination condition includes:
comparing the transverse acceleration of the target ship with a first transverse threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration is greater than the first transverse threshold; alternatively, the first and second electrodes may be,
comparing the longitudinal acceleration of the target ship with a first longitudinal threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration is greater than the first longitudinal threshold; alternatively, the first and second electrodes may be,
comparing the transverse acceleration of the target ship with a first transverse threshold, comparing the longitudinal acceleration of the target ship with a first longitudinal threshold, and determining that the judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration is greater than the first transverse threshold and the longitudinal acceleration is greater than the first longitudinal threshold.
4. The method of claim 2, wherein the determining motion information of the target vessel based on motion determination conditions comprises:
determining a current transverse acceleration mean value of the target ship based on a transverse acceleration in a preset time period before the current moment, comparing the transverse acceleration mean value with a second transverse threshold value, and determining that a judgment result of motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration mean value is larger than the second transverse threshold value; alternatively, the first and second electrodes may be,
determining a current longitudinal acceleration mean value of the target ship based on longitudinal acceleration in a preset time period before the current time, comparing the longitudinal acceleration mean value with a second longitudinal threshold, and determining that a judgment result of motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration mean value is larger than the second longitudinal threshold; alternatively, the first and second electrodes may be,
determining a current transverse acceleration mean value of the target ship based on a transverse acceleration in a preset time period before the current time, determining a current longitudinal acceleration mean value of the target ship based on a longitudinal acceleration in a preset time period before the current time, and determining that a judgment result of the motion information of the target ship meets the motion judgment condition under the condition that the transverse acceleration mean value is greater than a second transverse threshold value and the longitudinal acceleration mean value is greater than a second longitudinal threshold value.
5. The method of claim 2, wherein the determining motion information of the target vessel based on motion determination conditions comprises:
determining a lateral acceleration mean value of acceleration information in each of a plurality of time periods, and determining that a determination result of motion information of the target ship meets the motion determination condition when the lateral acceleration mean value of a later time period is greater than the lateral acceleration mean value of a previous time period in any two adjacent time periods; alternatively, the first and second electrodes may be,
determining a longitudinal acceleration mean value of acceleration information in each time period in a plurality of time periods, and determining that a judgment result of motion information of the target ship meets the motion judgment condition under the condition that the longitudinal acceleration mean value of a later time period is larger than the longitudinal acceleration mean value of a former time period in any two adjacent time periods; alternatively, the first and second electrodes may be,
determining a transverse acceleration mean value of acceleration information in each time period in a plurality of time periods, and determining a longitudinal acceleration mean value of the acceleration information in each time period in the plurality of time periods, wherein in any two adjacent time periods, when the transverse acceleration mean value in the later time period is larger than the transverse acceleration mean value in the previous time period, and the longitudinal acceleration mean value in the later time period is larger than the longitudinal acceleration mean value in the previous time period, it is determined that the judgment result of the motion information of the target ship meets the motion judgment condition.
6. The method according to claim 1, wherein in a case where the determination result of the motion information of the target vessel does not satisfy the motion determination condition, the method further comprises:
acquiring current positioning information of the target ship, and comparing the current positioning information with initial positioning information of the target ship in a parking state;
and under the condition that the current positioning information is out of the parking range of the initial positioning information, determining that the cable of the target ship is in a loose state, and alarming.
7. The method according to claim 1, wherein in a case where the determination result of the motion information of the target vessel does not satisfy the motion determination condition, the method further comprises:
under the condition that the target ship enters a parking state, receiving a verification signal transmitted by a management device based on target transmission power, and determining first signal receiving strength of the verification signal;
receiving a verification signal transmitted by the management device based on the target transmitting power during the parking process of the target ship, and determining a second signal receiving strength of the verification signal;
and when the second signal receiving intensity is smaller than the minimum value of the parking signal range corresponding to the first signal receiving intensity, determining that the cable of the target ship is in a loose state, and giving an alarm.
8. A cable loosening detection device for a marine vessel, comprising:
the motion information acquisition module is used for acquiring the motion information of the target ship under the condition that the target ship is in a parking state;
and the looseness detection module is used for judging the motion information of the target ship based on a motion judgment condition, and determining that the mooring rope of the target ship is in a looseness state and giving an alarm under the condition that the judgment result of the motion information of the target ship meets the motion judgment condition.
9. An electronic device, characterized in that the electronic device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of line slack detection for a vessel of any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method of line slack detection for a vessel according to any one of claims 1 to 7.
CN202210577693.5A 2022-05-25 2022-05-25 Ship cable loosening detection method and device, electronic equipment and storage medium Pending CN114935335A (en)

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CN202210577693.5A CN114935335A (en) 2022-05-25 2022-05-25 Ship cable loosening detection method and device, electronic equipment and storage medium

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CN202210577693.5A CN114935335A (en) 2022-05-25 2022-05-25 Ship cable loosening detection method and device, electronic equipment and storage medium

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