Gantry crane tire monitoring method and equipment and storage medium

Abstract

The invention provides a gantry crane tire monitoring method, and relates to the technical field of tire pressure monitoring. Comprising the following steps: S1, arranging a pressure sensor for monitoring tire pressure in each tire of the gantry crane; s2, all the pressure sensors upload monitored tire pressure data to the cloud platform every first set time; s3, after the cloud platform receives the tire pressure, a plurality of first sequences are constructed, and the first sequences comprise tire pressure data, uploaded at different times, of the same tire; s4, whether tire pressure abnormity exists or not is judged according to the first sequence; and S5, if the tire pressure is abnormal, sending an automatic inflation and deflation request or sending a tire damage alarm. According to the invention, automatic monitoring of the tire pressure is realized, different conditions of abnormal tire pressure can be accurately judged, and corresponding automatic inflation and deflation are carried out or a maintenance alarm is given out.

Description

Technical Field

[0001] The present application relates to the technical field of tire pressure monitoring, and in particular to a gantry crane tire monitoring method, device and storage medium. Background Art

[0002] Gantry crane, also known as gantry crane, is a variation of bridge crane. In ports, it is mainly used for loading and unloading operations of outdoor cargo yards, material yards, and bulk cargo. Its metal structure is like a door-shaped frame, with two legs installed under the main beam, which can walk directly on the track on the ground. Both ends of the main beam can have outward cantilever beams. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port cargo yards.

[0003] The gantry crane is moved by tires, which are located on the left and right sides of the gantry crane. Multiple tires are installed on each side to provide overall support. During the use of the gantry crane tires, the tire pressure will change with time, use environment, and accidental damage, so maintenance operations such as inflation or deflation or tire replacement are required.

[0004] Currently, tire maintenance is generally carried out by manually checking tire pressure at irregular intervals. This method is not only time-consuming and labor-intensive, but also detects the tire pressure at a single point in time, which is prone to missed detection. Summary of the invention

[0005] The present application provides a gantry crane tire monitoring method, device and storage medium to at least solve the above technical problems existing in the prior art.

[0006] According to a first aspect of the present application, a gantry crane tire monitoring method is provided, comprising the following steps: S1, a pressure sensor for monitoring tire pressure is arranged in each tire of the gantry crane; S2, every first specified time, all the pressure sensors upload the monitored tire pressure data to the cloud platform; S3, after receiving the tire pressure, the cloud platform constructs a plurality of first number series, wherein the first number series includes tire pressure data of the same tire uploaded at different times; S4, determining whether there is abnormal tire pressure according to the first number sequence; S5: If the tire pressure is abnormal, a request for automatic inflation or deflation is issued or a tire damage alarm is issued.

[0007] In certain embodiments of the first aspect of the present application, in S2, the cloud platform is in the form of a matrix Record the tire pressure data at the last moment m-1;

[0008] At the present moment When new tire pressure data is received, it is added to the original matrix to obtain the matrix ;

[0009] in, represent The measured time j The tire pressure of each tire.

[0010] In certain embodiments of the first aspect of the present application, the method for constructing the first number sequence is as follows: The current moment matrix The data of each column in is split independently to obtain several first series ;

[0011] Among them, the first series Subscript Represents the serial number of the tire.

[0012] In certain embodiments of the first aspect of the present application, a method for determining whether there is abnormal tire pressure according to the first number sequence is as follows: The first series The last two tire pressures and Compare with the set tire pressure upper and lower limits; if the tire pressure and At the same time, it is greater than the upper limit of tire pressure, then it is judged that the tire If the tire pressure is too high, it will issue a request for automatic deflation; and At the same time, it is less than the lower limit of tire pressure, then it is judged that the tire The tire pressure is too low and a request for automatic inflation is issued; The first series The last three tire pressures , and Compare with the set tire pressure upper and lower limits; if the tire pressure , and If the tire pressure is greater than the upper limit or less than the lower limit, the tire is judged to be damaged and an alarm is issued.

[0013] In certain embodiments of the first aspect of the present application, a second number series is also provided for correcting the upper and lower tire pressure limits; the second number series includes tire pressure data of different tires uploaded at the same time.

[0014] In certain embodiments of the first aspect of the present application, the method for constructing the second number series is as follows: The current moment matrix The data of the last row in the result is split independently to get the second series. ; .

[0015] In certain embodiments of the first aspect of the present application, the method for correcting the tire pressure upper limit and the tire pressure lower limit by the second number series is as follows: Calculate the first mean and standard deviation of all tire pressures in the second series; Calculating the difference between each tire pressure in the second series and the first average value; If the difference is greater than k times the standard deviation, the corresponding tire pressure is regarded as an abnormal value, and the abnormal value is removed from the second sequence; Recalculate the second average value of all tire pressures in the second series after removing the abnormal values; The second average value is multiplied by a first coefficient greater than 1 to obtain an upper limit of tire pressure, and the second average value is multiplied by a second coefficient less than 1 to obtain a lower limit of tire pressure.

[0016] In certain embodiments of the first aspect of the present application, k is 2 or 3.

[0017] According to a second aspect of the present application, an electronic device is provided, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the present application.

[0018] According to a third aspect of the present application, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to execute the method described in the present application.

[0019] Compared with the prior art, this application has the following beneficial effects: The present application realizes automatic monitoring of tire pressure by continuously monitoring the tire pressure of each tire through the pressure sensor installed in the tire and uploading it to the cloud platform, thereby preventing missed detections and saving a large amount of manpower. In addition, through data processing on the cloud platform, different situations of abnormal tire pressure can be accurately determined, and corresponding automatic inflation and deflation or maintenance alarm can be performed.

[0020] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become readily understood. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, wherein: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0022] Figure 1 A schematic diagram of the implementation process of the gantry crane tire monitoring method of the first embodiment of the present application is shown.

[0023] Figure 2 A schematic diagram of the structure of an electronic device according to the second embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0025] Embodiment 1: like Figure 1 As shown, this embodiment 1 provides a gantry crane tire monitoring method, comprising the following steps: S1, a pressure sensor for monitoring tire pressure is installed in each tire of the gantry crane. All pressure sensors work independently and continuously monitor the tire pressure of all tires.

[0026] S2: At a first predetermined time t, all the pressure sensors upload the monitored tire pressure data to the cloud platform. The time t can be adjusted according to the actual situation, and can be 30 minutes or 1 hour.

[0027] After the cloud platform receives the uploaded tire pressure data, it uses a matrix Record the tire pressure data at the last moment m-1;

[0028] At the present moment When new tire pressure data is received, it is added to the original matrix to obtain the matrix ;

[0029] in, represent The measured time j The matrix subscript m represents the current time series. As time goes by, the number of rows in the matrix increases.

[0030] S3, after receiving the tire pressure, the cloud platform constructs a plurality of first number series, wherein the first number series includes tire pressure data of the same tire uploaded at different times.

[0031] Specifically, the method for constructing the first number sequence is as follows: The current moment matrix The data of each column in is split independently to obtain several first series ;

[0032] Among them, the first series Subscript Represents the serial number of the tire.

[0033] S4, determining whether there is abnormal tire pressure according to the first number sequence.

[0034] The specific judgment method is as follows: The first series The last two tire pressures and Compare with the set tire pressure upper and lower limits; if the tire pressure and At the same time, it is greater than the upper limit of tire pressure, then it is judged that the tire If the tire pressure is too high, it will issue a request for automatic deflation; and At the same time, it is less than the lower limit of tire pressure, then it is judged that the tire The tire pressure is too low and an automatic inflation request is issued.

[0035] The reason why this method uses the combination of two tire pressures for comprehensive judgment is that due to the influence of various factors, the pressure sensor may output inaccurate detection results to a certain extent, resulting in misjudgment. In order to avoid this situation as much as possible, this method uses the two most recently detected consecutive tire pressures for judgment. Only when the two consecutive tire pressures are both too high or too low at the same time, it is confirmed that the tire pressure is too high or too low, thereby reducing the risk of misjudgment.

[0036] At the same time, this method also brings some defects. In the case of excessively high or low tire pressure, the tire of the gantry crane will continue to work in an abnormal state between two consecutive tire pressure detections. In order to reduce the duration of the abnormal state, this method further changes the first specified time t of the interval for the pressure sensor to upload tire pressure data in step S2 when the tire pressure is first detected to be too low.

[0037] That is, the first sequence The last tire pressure Compare with the set tire pressure upper and lower limits; if the tire pressure If the tire pressure is greater than the upper limit or less than the lower limit, the next tire pressure data monitoring and uploading will be performed after a second specified time. The second specified time is less than the first specified time. Preferably, the second specified time is 5 minutes.

[0038] When the tire pressure is judged to be too high or too low, it will automatically inflate and deflate. At this time, normally, the tire pressure monitored next time should return to the normal value. If the tire pressure is still too high or too low, it means that the tire is damaged and cannot be used any more.

[0039] In order to achieve the above purpose, the first series The last three tire pressures , and Compare with the set tire pressure upper and lower limits; if the tire pressure , and If the tire pressure is greater than the upper limit or less than the lower limit, the tire is determined to be damaged and an alarm is issued to notify maintenance personnel to replace the tire as soon as possible.

[0040] S5: If the tire pressure is abnormal, a request for automatic inflation or deflation is issued or a tire damage alarm is issued.

[0041] Under the influence of different environmental factors (such as temperature and humidity), the most suitable tire pressure will also be different. In order to eliminate the influence of environmental factors, this method uses the tire pressure measured by all tires on the same gantry crane to correct the upper and lower limits of tire pressure.

[0042] Specifically, this embodiment also provides a second number series for correcting the tire pressure upper limit and the tire pressure lower limit; the second number series includes tire pressure data of different tires uploaded at the same time.

[0043] The construction method of the second sequence is as follows: The current moment matrix The data of the last row in the result is split independently to get the second series. ; .

[0044] The method for correcting the tire pressure upper limit and the tire pressure lower limit by the second number sequence is as follows: Calculate the first mean and standard deviation of all tire pressures in the second series; Calculating the difference between each tire pressure in the second series and the first average value; If the difference is greater than k times the standard deviation, the corresponding tire pressure is regarded as an abnormal value and the abnormal value is removed from the second sequence; it is worth mentioning that k is 2 or 3; Recalculate the second average value of all tire pressures in the second series after removing the abnormal values; The second average value is multiplied by a first coefficient greater than 1 to obtain the upper limit of the tire pressure, and the second average value is multiplied by a second coefficient less than 1 to obtain the lower limit of the tire pressure; preferably, the first coefficient is preferably 0.8, and the second coefficient is preferably 1.2.

[0045] This enables correction of the upper and lower limits of the tire pressure, so that abnormal tire pressure caused by accidents on the upper part of the gantry crane can be identified based on the corrected upper and lower limits of the tire pressure.

[0046] Embodiment 2: This second embodiment also provides an electronic device and a readable storage medium.

[0047] Figure 2 A schematic block diagram of an example electronic device that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0048] like Figure 2 As shown, the device includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for the operation of the device can also be stored. The computing unit, ROM, and RAM are connected to each other through a bus. An input / output (I / O) interface is also connected to the bus.

[0049] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunication networks.

[0050] The computing unit may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of computing units include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit performs the various methods and processes described above, such as the gantry crane tire monitoring method described in Example 1. For example, in some embodiments, the gantry crane tire monitoring method may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the computing unit, one or more steps of the gantry crane tire monitoring method described above may be performed. Alternatively, in other embodiments, the computing unit may be configured to perform the gantry crane tire monitoring method in any other appropriate manner (e.g., by means of firmware).

[0051] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0052] The program code for implementing the method of the present application can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, implements the functions / operations specified in the flow chart and / or block diagram. The program code can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0053] In the context of the present application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0054] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0055] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0056] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0057] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document is not limited here.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A gantry crane tire monitoring method, characterized in that: The following steps are involved: S1, a pressure sensor for monitoring tire pressure is arranged in each tire of the gantry crane; S2, every first specified time, all the pressure sensors upload the monitored tire pressure data to the cloud platform; S3, after receiving the tire pressure, the cloud platform constructs a plurality of first number series, wherein the first number series includes tire pressure data of the same tire uploaded at different times; S4, determining whether there is abnormal tire pressure according to the first number sequence; S5: If the tire pressure is abnormal, a request for automatic inflation or deflation is issued or a tire damage alarm is issued.

2. The gantry crane tire monitoring method according to claim 1, characterized in that: In S2, the cloud platform is based on a matrix Record the tire pressure data at the last moment m-1; At the present moment When new tire pressure data is received, it is added to the original matrix to obtain the matrix ; in, represent The measured time j The tire pressure of each tire.

3. The gantry crane tire monitoring method according to claim 2, characterized in that: The method for constructing the first number sequence is as follows: The current moment matrix The data of each column in is split independently to obtain several first series ; Among them, the first series Subscript Represents the serial number of the tire.

4. The gantry crane tire monitoring method according to claim 3, characterized in that: The method for determining whether there is abnormal tire pressure based on the first number series is as follows: The first series The last two tire pressures and Compare with the set tire pressure upper and lower limits; if the tire pressure and At the same time, it is greater than the upper limit of tire pressure, then it is judged that the tire If the tire pressure is too high, it will issue a request for automatic deflation; and At the same time, it is less than the lower limit of tire pressure, then it is judged that the tire The tire pressure is too low and a request for automatic inflation is issued; The first series The last three tire pressures , and Compare with the set tire pressure upper and lower limits; if the tire pressure , and If the tire pressure is greater than the upper limit or less than the lower limit, the tire is judged to be damaged and an alarm is issued.

5. The gantry crane tire monitoring method according to claim 4, characterized in that: A second number series is also provided for correcting the tire pressure upper limit and the tire pressure lower limit; the second number series includes tire pressure data of different tires uploaded at the same time.

6. The gantry crane tire monitoring method according to claim 5, characterized in that: The construction method of the second sequence is as follows: The current moment matrix The data of the last row in the result is split independently to get the second series. ; 。 7. The gantry crane tire monitoring method according to claim 6, characterized in that: The method for correcting the tire pressure upper limit and the tire pressure lower limit by the second number sequence is as follows: Calculate the first mean and standard deviation of all tire pressures in the second series; Calculating the difference between each tire pressure in the second series and the first average value; If the difference is greater than k times the standard deviation, the corresponding tire pressure is regarded as an abnormal value, and the abnormal value is removed from the second sequence; Recalculate the second average value of all tire pressures in the second series after removing the abnormal values; The second average value is multiplied by a first coefficient greater than 1 to obtain an upper limit of tire pressure, and the second average value is multiplied by a second coefficient less than 1 to obtain a lower limit of tire pressure.

8. The gantry crane tire monitoring method according to claim 7, characterized in that: The k is 2 or 3.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 8.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 8.

Images