A hoisting planning system and method

Abstract

This invention provides a hoisting planning system and method. By collecting information from the starting point and target point, parameters for the entire hoisting process are calculated to achieve hoisting planning functionality. The system includes a mobile terminal and a server; the mobile terminal and server are connected via a network; the mobile terminal acquires target point operation information and lifting point operation information and transmits them to the server; the server accesses a performance table for the corresponding vehicle model based on the target point operation information and lifting point operation information, calculates and generates a candidate operating condition list, and transmits it to the mobile terminal; the mobile terminal displays the candidate operating condition list, acquires intended operating condition information, and transmits the intended operating condition information to the server; the server generates a performance table based on the intended operating condition information selected by the mobile terminal, calculates the maximum lifting weight percentage and ground pressure ratio during the hoisting process, and sends it to the mobile terminal; the mobile terminal stores and displays the planned operating condition performance table, the maximum lifting weight percentage, and the ground pressure ratio during the hoisting process.

Description

Technical Field

[0001] This invention relates to a hoisting planning system and method, belonging to the field of crane technology. Background Technology

[0002] Cranes, especially large cranes, have numerous configurations and corresponding operating conditions. Before operation, the most suitable crane operating condition needs to be selected based on the weight of the load, the working radius, the working height, and the presence of obstacles. Due to the numerous crane operating conditions, manually reviewing performance tables is labor-intensive and inefficient. Furthermore, since the performance tables do not specify lifting height, crane operators cannot accurately determine whether the lifting height meets the actual lifting requirements. Technically, lifting planning software exists both domestically and internationally to automatically calculate recommended operating conditions based on input work information. However, currently, this is implemented as PC-based software or software integrated into the existing vehicle-mounted control system. Both methods have limitations: PCs are not easily portable, and vehicle-mounted control systems require operation on the crane itself. Lifting planning is primarily used by crane company marketing personnel when visiting sites with clients, where PCs and vehicle-mounted control systems are difficult to use. With the development of technology, smartphones have become necessities. Implementing lifting planning functionality on smartphones would bring convenience to crane operators.

[0003] The existing technology uses PC software to realize hoisting planning function, which requires each customer to install PC software. The installation and authorization are complicated, the PC configuration requirements are high, and the computer is inconvenient to carry around.

[0004] The patent CN106325100, entitled "A Lifting Simulation Method Based on Crane Vehicle Control System", discloses a lifting simulation method for crane vehicle control system. The lifting planning method of this patent can only be operated on a crane and cannot be used if it is not planned in advance near a crane.

[0005] Current hoisting planning software is implemented through PC software or vehicle control systems, which has the problem of insufficient flexibility. Portable devices such as mobile phones and tablets are convenient for customers to use, but their storage space and computing power are limited, especially for hoisting fleets with multiple models, which cannot achieve local storage and fast query of large amounts of vehicle data.

[0006] The hoisting process involves moving from the starting point to the target point, encompassing not only luffing and lifting actions but also slewing. During this process, the crane's torque percentage and the ground pressure, especially for crawler cranes, constantly change. Customers cannot capture the maximum torque percentage or ground pressure ratio for the entire process by inputting the position at a single point. Existing hoisting planning software relies on a single input point, requiring manual adjustments to the crane model's position for simulation, which is slow and inefficient. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hoisting planning system and method that can automatically calculate the parameters of the entire hoisting process by collecting information on the starting point and the target point, so as to realize the hoisting planning function.

[0008] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0009] In a first aspect, the present invention provides a hoisting planning system, comprising a mobile terminal and a server; the mobile terminal and the server are connected via a network.

[0010] The mobile terminal acquires the target point operation information and the lifting point operation information, and transmits them to the server;

[0011] The server accesses the corresponding vehicle performance table based on the target point operation information and the lifting point operation information, calculates and generates a candidate working condition list, and transmits it to the mobile terminal.

[0012] The mobile device displays the candidate operating condition list, obtains the intended operating condition information, and transmits the intended operating condition information to the server.

[0013] The server provides a specific performance table based on the intended working condition information selected by the mobile device, as well as calculates the maximum lifting weight percentage and grounding specific voltage during the hoisting process, and sends it to the mobile device.

[0014] The mobile device stores and displays the planned working condition performance table, as well as the maximum lifting weight percentage and grounding specific voltage during the hoisting process.

[0015] Furthermore, the target point operation information includes at least: the height, amplitude, lifting weight, rotation angle, and interference distance of the target point;

[0016] The lifting point operation information includes at least: the height, radius, lifting weight, rotation angle, and interference distance of the lifting point.

[0017] Furthermore, the target point operation information includes the target point lifting weight L0, the target point working radius R0, and the target point height H0; the lifting point operation information includes the lifting weight L0, the lifting point working radius R0, and the lifting point height H0.

[0018] Based on the target point operation information and lifting point operation information, the corresponding vehicle performance table is accessed and a candidate working condition list is generated, including:

[0019] Iterate through the lifting weight L, working radius R, and height H information of each point in the corresponding vehicle performance table, and find all performance points where L>L0, L1, R>R0, R1, and H>H0, H1;

[0020] Substitute each of the performance points that initially meet the requirements generated in the previous step into the interference distance calculation formula, measure the interference distance corresponding to these points, and determine whether this interference distance is greater than the interference distance between the starting point and the target point. List the working condition information of the points that meet the above requirements as a candidate working condition list. The order of the candidate working condition list is the difficulty of achieving the crane configuration, with the working condition that is easier to assemble being listed first.

[0021] Furthermore, the interference distance calculation formula can be calculated using geometric trigonometric functions.

[0022] Furthermore, finding all performance points where L>L0, L1, R>R0, R1, and H>H0, H1 also includes:

[0023] Set safety margins for the weight, amplitude, and height of the target point. This means that the weight can be a certain amount or a certain percentage larger than the required weight, the amplitude can be a certain amount or a certain percentage larger than the required amplitude, and the height can be a certain amount or a certain percentage larger than the required height.

[0024] Furthermore, the mobile device is a mobile phone or tablet. The mobile device is connected to the server via a network; the network is the Internet, with the mobile device connecting to the Internet via mobile signal and the server connecting to the Internet via a wired or wireless network.

[0025] Furthermore, based on the intended operating conditions selected by the mobile device, the server provides a specific performance table and calculates the maximum lifting weight percentage and grounding specific voltage during the hoisting process, including:

[0026] Extract the performance table data corresponding to the operating condition code using the operating condition code;

[0027] Data is sent to the terminal via the network, and the terminal device parses and displays the performance table data according to the protocol defined by both parties.

[0028] The calculation method is to divide the input weight by the rated lifting capacity corresponding to the performance table and compare the maximum value at the starting point and the target point under this working condition.

[0029] Calculate the ground pressure ratio based on the vehicle weight and boom weight corresponding to the working conditions. Compare the ground pressure ratio at each preset angle interval between the starting point slewing angle and the target point slewing angle to calculate the maximum value. Similarly, calculate the maximum ground pressure ratio within the target point slewing angle range and compare it with the maximum value at the starting point to calculate the maximum ground pressure ratio during the entire hoisting process and send it to the mobile terminal.

[0030] Furthermore, the mobile device stores and displays the planned working condition performance table, as well as the maximum lifting weight percentage and grounding specific voltage during the hoisting process, including:

[0031] The lifting plan's operational information can be displayed graphically, specifically by showing the corresponding crane images;

[0032] The starting and target points of the crane are displayed graphically.

[0033] The animation shows the process of the crane moving from the starting point to the target point, with the percentage of the crane's weight calculated and displayed in real time. The percentage calculation algorithm is the weight at the target point L / the rated weight at the current performance table point L_max.

[0034] Secondly, the present invention provides a hoisting planning method, based on the system described in the first aspect, comprising the following steps:

[0035] Step a. Select the car model on the mobile device;

[0036] Step b. Input the target point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance;

[0037] Step c. Input the lifting point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance;

[0038] Step d. The above information is sent to the server via the network. The server accesses the corresponding vehicle performance table and performs the calculations in steps e, f, and g.

[0039] Step e. If the vehicle performance table does not contain boom head height information, calculate and generate the boom head height information, and form a performance table containing the corresponding boom head height information. If the server performance table contains boom head height information, proceed to the next step.

[0040] Step f. Compare the weight and height under a given amplitude with the lifting weight and height in the target performance table at the starting point and target point positions respectively. If the lifting weight and height in the target performance table are greater than those at the starting point and target point positions respectively, save the performance of this working condition for the next step of calculation. If not, continue to compare other working conditions.

[0041] Step g. The working condition performance saved in step f is substituted into the interference distance calculation formula to calculate the interference distance. If this interference distance is greater than the interference distance of the input starting point and the target point respectively, then this working condition is a candidate working condition and is added to the candidate working condition list.

[0042] Step h. The candidate operating condition list is transmitted to the mobile device via the network, and the mobile device displays the recommended operating condition list;

[0043] Step i. The user selects the desired working condition on the mobile device and sends it to the server via the network;

[0044] Step j. The server provides a specific performance table based on the operating condition selected by the mobile terminal, calculates the maximum percentage of the lifting weight from the starting point to the target point and the maximum grounding specific voltage value under this operating condition, and sends them to the mobile terminal.

[0045] Step k. The mobile device stores and displays the planned operating condition performance table, the maximum lifting weight percentage, and the maximum grounding specific voltage value.

[0046] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0047] 1. This invention solves the problem of inconvenient portable lifting planning by using a mobile device as the human-computer interaction interface and working with a server to achieve lifting planning. Existing lifting planning schemes only input weight and radius information at one point, while actual lifting inevitably involves a starting point and a target point. Meeting the performance requirements at only one point may not be sufficient at another. The lifting plan must simultaneously meet the lifting performance requirements at both the starting and target points to be usable. However, the method provided by this invention automatically calculates the torque percentage change and key parameters such as ground pressure and interference distance throughout the lifting process by inputting the starting and target points. This makes the lifting planning software more convenient for users. Using a high-performance server for calculation and querying allows for performance measurement of the starting and target points in a shorter time.

[0048] 2. This invention uses a combination of mobile terminal (phone or tablet) and server to realize the hoisting planning function. Hoisting planning can be realized anytime and anywhere by taking advantage of the high portability of mobile phones. The performance table data and calculations are implemented in the server, which can store all vehicle data and quickly query it.

[0049] 3. This invention optimizes and matches lifting conditions by inputting lifting information of the starting point and target point, and verifies the interference distance during matching. This can improve the success rate of lifting planning and avoid the situation where the recommended conditions cannot meet the performance requirements of the entire lifting process when only one point is input.

[0050] 4. This invention automatically calculates the percentage of lifting weight and ground pressure during the entire hoisting process from the starting point to the target point, and displays the maximum percentage of lifting weight and ground pressure information to the customer, thereby significantly improving work efficiency. Attached Figure Description

[0051] Figure 1 This is a diagram showing the interaction steps between the mobile app and the server for hoisting planning.

[0052] Figure 2 This is a schematic diagram of the hoisting planning system and methods, and its system composition.

[0053] Figure 3 This is a schematic diagram of the interference distance in the hoisting plan. Detailed Implementation

[0054] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0055] Example 1:

[0056] This embodiment proposes a hoisting planning system that can realize hoisting planning functions through portable mobile devices such as mobile phones or tablets.

[0057] The system consists of a mobile device and a server. The mobile device and the server are connected via a network, preferably the Internet. The mobile device connects via mobile signal, and the server connects via a wired or wireless network. The mobile device is a mobile phone, tablet, or similar portable device.

[0058] Due to the limited performance and storage of mobile phones or tablets, this system uses a combination of mobile devices (phones or tablets) and a server to implement the hoisting planning function. The specific control method of this system is as follows:

[0059] a. Select a car model on the mobile device;

[0060] b. Input the target point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance;

[0061] c. Input lifting point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance;

[0062] d. The above information is sent to the server via the network. The server accesses the corresponding vehicle performance table and performs steps e, f, and g.

[0063] e. If the vehicle performance table does not contain boom height information, calculate and provide the boom height information, and generate a performance table containing the corresponding boom height information. If the server performance table contains boom height information, proceed to the next step.

[0064] f. Compare the weight and height under a given amplitude with the lifting weight and height in the target performance table at the starting point and target point positions respectively. If the lifting weight and height in the target performance table are greater than those at the starting point and target point positions respectively, save the performance of this working condition for the next step of calculation. If not, continue to compare other working conditions.

[0065] g. The working condition performance saved in step f is substituted into the interference distance calculation formula to calculate the interference distance. If this interference distance is greater than the interference distance of the input starting point and the target point respectively, then this working condition is a candidate working condition and is added to the candidate working condition list.

[0066] h. The candidate operating condition list is transmitted to the mobile device via the network, and the mobile device displays the recommended operating condition list;

[0067] i. Users select their desired operating conditions on their mobile devices and send the information to the server via the network;

[0068] j. The server provides a specific performance table based on the operating condition selected by the mobile terminal, calculates the maximum percentage of the maximum suspended weight and the maximum grounding specific voltage value from the starting point to the target point under this operating condition, and sends them to the mobile terminal.

[0069] k. The mobile device stores and displays the planned operating condition performance table, as well as the maximum lifting weight percentage and the maximum grounding specific voltage value.

[0070] Specifically, the system operation includes the following steps:

[0071] 1) The server stores all performance tables for multiple crane models. The server can select the corresponding performance table for a crane model through the model information transmitted via the interface.

[0072] 2) In addition to storing performance tables, the server also stores basic structural parameter information of the vehicle, such as the height of the turning center from the ground.

[0073] 3) The maximum lifting height for the corresponding working condition can be calculated through geometric calculations using the boom length, working radius, and basic structural parameters of the crane;

[0074] 4) The performance table stores structured data, which can be traversed by software to obtain information such as lifting weight L, working radius R, and height H;

[0075] 5) The target point information (L0, R0, H0) and starting point information (L1, R1, H1) input by the user are transmitted to the server via the network;

[0076] 6) The server uses software to traverse the L, R, and H information of each point in the performance table to find all performance points where L>L0, L1, R>R0, R1, and H>H0, H1.

[0077] 7) Substitute each of the performance points that initially meet the requirements generated in the previous step into the interference distance calculation formula, measure the interference distance corresponding to these points (this interference distance calculation formula can be calculated using geometric trigonometric functions), and determine whether this interference distance is greater than the interference distance between the starting point and the target point. Transmit the working condition information of the points that meet the above requirements to the mobile terminal.

[0078] 8) The mobile terminal generates a list of working conditions that meet the conditions, arranged in order of the difficulty of crane configuration, with the easiest working conditions to assemble listed first.

[0079] 9) By selecting the appropriate working condition code from the recommended working condition list on the mobile device, the selected working condition information is sent back to the server;

[0080] 10) The server extracts the performance table data corresponding to the operating condition code;

[0081] 11) Data is sent to the terminal via the network, and the terminal device parses and displays the performance table data according to the protocol defined by both parties;

[0082] 12) Calculate the maximum lifting weight percentage from the starting point to the target point under this working condition. The calculation method is to divide the input weight by the rated lifting capacity corresponding to the performance table and compare the maximum values ​​at the starting point and the target point.

[0083] 13) Based on the vehicle weight, boom weight, and other information corresponding to the working conditions, the ground pressure ratio can be calculated using existing technology. The ground pressure ratio is compared with the ground pressure ratio at 0.1-degree intervals (adjustable) from the starting point slewing angle to the target point slewing angle, and the maximum value is calculated. The maximum ground pressure ratio within the slewing angle range of the target point is calculated in the same way and compared with the maximum value at the starting point to calculate the maximum ground pressure ratio during the entire hoisting process and send it to the mobile terminal.

[0084] 14) The mobile device stores and displays the planned operating condition performance table, maximum lifting weight percentage, and maximum grounding specific voltage value.

[0085] Specifically, the weight, amplitude, and height of the target point can all be set with a certain safety margin, that is, the allowable weight is a certain value or a certain percentage larger than the required weight, the allowable amplitude is a certain value or a certain percentage larger than the required amplitude, and the allowable height is a certain value or a certain percentage larger than the required height.

[0086] Specifically, the lifting plan's operational information can be displayed graphically, i.e., showing the corresponding crane image; both the crane's starting point and target point can be displayed graphically; the process of the crane moving from the starting point to the target point can be animated, with the percentage of the lifted weight calculated and displayed in real time. The percentage calculation algorithm is target point weight L / current performance table point's rated weight L_max.

[0087] Specifically, based on the target point operation information and lifting point operation information, the corresponding vehicle performance table is accessed and a candidate working condition list is generated, including:

[0088] For the calculation of the starting point parameters and the target point parameters, the candidate working condition must simultaneously satisfy both the starting point parameters and the target point parameters.

[0089] The comparison between the weight lifted at a given amplitude and the target performance table is performed at the starting point and the target point, respectively, and the comparison between the crane boom height calculated by the server and the input height is performed.

[0090] A comparison of the allowable interference distances given at the starting and target points, respectively, with the maximum interference distance at the server's computational performance points;

[0091] The process of providing a list of candidate operating conditions includes the following rules: the lifting weight at the corresponding point in the target performance table is greater than the input weight; the boom height calculated at the same corresponding point is greater than the input height; and the maximum interference distance calculated at the same corresponding point is greater than the input interference distance.

[0092] Example 2:

[0093] This embodiment provides a hoisting planning method based on the system described in Embodiment 1, including the following steps:

[0094] a. Select a car model on the mobile device;

[0095] b. Input the target point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance;

[0096] c. Input lifting point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance;

[0097] d. The above information is sent to the server via the network. The server accesses the corresponding vehicle performance table and performs steps e, f, and g.

[0098] e. If the vehicle performance table does not contain boom height information, calculate and provide the boom height information, and generate a performance table containing the corresponding boom height information. If the server performance table contains boom height information, proceed to the next step.

[0099] f. Compare the weight and height under a given amplitude with the lifting weight and height in the target performance table at the starting point and target point positions respectively. If the lifting weight and height in the target performance table are greater than those at the starting point and target point positions respectively, save the performance of this working condition for the next step of calculation. If not, continue to compare other working conditions.

[0100] g. The working condition performance saved in step f is substituted into the interference distance calculation formula to calculate the interference distance. If this interference distance is greater than the interference distance of the input starting point and the target point respectively, then this working condition is a candidate working condition and is added to the candidate working condition list.

[0101] h. The candidate operating condition list is transmitted to the mobile device via the network, and the mobile device displays the recommended operating condition list;

[0102] i. Users select their desired operating conditions on their mobile devices and send the information to the server via the network;

[0103] j. The server provides a specific performance table based on the operating condition selected by the mobile terminal, calculates the maximum percentage of the maximum suspended weight and the maximum grounding specific voltage value from the starting point to the target point under this operating condition, and sends them to the mobile terminal.

[0104] k. The mobile device stores and displays the planned operating condition performance table, as well as the maximum lifting weight percentage and the maximum grounding specific voltage value.

[0105] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0106] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0107] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0108] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0109] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hoisting planning method, characterized in that, Based on a hoisting planning system, the following steps are included: Step a. Select the car model on the mobile device; Step b. Input the target point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle, and interference distance; Step c. Input the lifting point operation information on the mobile device, including at least: height, radius, lifting weight, slewing angle and interference distance; Step d. The above information is sent to the server via the network. The server accesses the corresponding vehicle performance table and performs the calculations in steps e, f, and g. Step e. If the vehicle performance table does not contain boom head height information, calculate and generate the boom head height information, and form a performance table containing the corresponding boom head height information; if the server performance table contains boom head height information, proceed to the next step. Step f. Compare the weight and height under a given amplitude with the lifting weight and height in the target performance table at the starting point and target point positions respectively. If the lifting weight and height in the target performance table are greater than those at the starting point and target point positions respectively, save the performance of this working condition for the next step of calculation. If not, continue to compare other working conditions. Step g. The working condition performance saved in step f is substituted into the interference distance calculation formula to calculate the interference distance. If this interference distance is greater than the interference distance of the input starting point and the target point respectively, then this working condition is a candidate working condition and is added to the candidate working condition list. Step h. The candidate operating condition list is transmitted to the mobile device via the network, and the mobile device displays the recommended operating condition list; Step i. The user selects the desired working condition on the mobile device and sends it to the server via the network; Step j. The server provides a specific performance table based on the operating condition selected by the mobile terminal, calculates the maximum percentage of the lifting weight from the starting point to the target point and the maximum grounding specific voltage value under this operating condition, and sends them to the mobile terminal. Step k. The mobile device stores and displays the planned operating condition performance table, maximum lifting weight percentage, and maximum grounding specific voltage value; The system includes a mobile device and a server; the mobile device and the server are connected via a network.

2. A hoisting planning system for performing the method as described in claim 1, characterized in that, Includes a mobile device and a server; the mobile device and the server are connected via a network. The mobile terminal acquires the target point operation information and the lifting point operation information, and transmits them to the server; The server accesses the corresponding vehicle performance table based on the target point operation information and the lifting point operation information, calculates and generates a candidate working condition list, and transmits it to the mobile terminal. The mobile device displays the candidate operating condition list, obtains the intended operating condition information, and transmits the intended operating condition information to the server. The server provides a specific performance table based on the intended working condition information selected by the mobile device, as well as calculates the maximum lifting weight percentage and grounding specific voltage during the hoisting process, and sends it to the mobile device. The mobile device stores and displays the planned working condition performance table, as well as the maximum lifting weight percentage and grounding specific voltage during the hoisting process.

3. The hoisting planning system according to claim 2, characterized in that, The target point operation information includes at least: the height, amplitude, lifting weight, rotation angle, and interference distance of the target point; The lifting point operation information includes at least: the height, radius, lifting weight, rotation angle, and interference distance of the lifting point.

4. The hoisting planning system according to claim 2, characterized in that, The mobile device is a mobile phone or tablet; the mobile device and the server are connected via a network; the network is the Internet, with the mobile device connecting to the Internet via mobile signal and the server connecting to the Internet via a wired or wireless network.

5. The hoisting planning system according to claim 2, characterized in that, Based on the intended operating conditions selected by the mobile device, the server provides a detailed performance table and calculates the maximum lifting weight percentage and grounding specific voltage during the hoisting process, including: Extract the performance table data corresponding to the operating condition code using the operating condition code; Data is sent to the terminal via the network, and the terminal device parses and displays the performance table data according to the protocol defined by both parties. The calculation method is to divide the input weight by the rated lifting capacity corresponding to the performance table and compare the maximum value at the starting point and the target point under this working condition. Calculate the ground pressure ratio based on the vehicle weight and boom weight corresponding to the working conditions. Compare the ground pressure ratio at each preset angle interval between the starting point slewing angle and the target point slewing angle to calculate the maximum value. Similarly, calculate the maximum ground pressure ratio within the target point slewing angle range and compare it with the maximum value at the starting point to calculate the maximum ground pressure ratio during the entire hoisting process and send it to the mobile terminal.

6. The hoisting planning system according to claim 2, characterized in that, The mobile device stores and displays the planned working condition performance table, as well as the maximum lifting weight percentage and ground pressure ratio during the hoisting process, including: The lifting plan's operational information can be displayed graphically, specifically by showing the corresponding crane image; The starting and target points of the crane are displayed graphically. The animation shows the process of the crane moving from the starting point to the target point, with the percentage of the crane's weight calculated and displayed in real time. The percentage calculation algorithm is the weight at the target point L / the rated weight at the current performance table point L_max.

Images