Control Method, Device and Aerial Work Platform for Aerial Work

By obtaining the working mode and lifting instructions on the aerial working platform, combining the stroke switch signal, a lifting termination instruction is generated to control the platform to stop lifting, the problem of high risk of turning over in two-person working is solved, and higher safety and applicability are achieved.

CN115434989BActive Publication Date: 2025-06-27SANY AERIAL WORK EQUIPMENT CO LTD
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Patent Information

Application Number
CN202211160973.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-22
Publication Date
2025-06-27
Estimated Expiration
2042-09-22

AI Technical Summary

Technical Problem

When a traditional scissors-type aerial work platform operates for two people, as the lifting height increases, the risk of overturning also increases, and the safety of the operators and the platform cannot be guaranteed.

Method used

By obtaining the working mode command and lifting command of the aerial working platform, if it is in two-person mode and the lifting command is lifting, it is determined that the lifting pressure of the current lifting height meets the preset range, and when the trigger signal of the corresponding stroke switch is received, a lifting termination command is generated to control the platform to stop lifting.

Benefits of technology

It effectively reduces the risk of high-altitude working platform tipping over when two-person operation, ensures the safety of operators and the platform, and makes full use of the cylinder stroke to improve the applicability of the platform.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of construction machinery, and provides a control method, a device and an aerial work platform for an aerial work platform. The method includes: obtaining a work mode instruction and a lifting instruction of the aerial work platform; if the work mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies a first preset range and a trigger signal of a first travel switch is received, generating a lifting termination instruction; when it is determined that the lifting pressure corresponding to the current lifting height satisfies a second preset range and a trigger signal of a second travel switch is received, generating a lifting termination instruction; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch. The present invention can effectively reduce the risk of tipping during two-person operation and ensure the safety of the operator and the aerial work platform.
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Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery, and particularly to a control method and device for an aerial work platform and an aerial work platform. Background Art

[0002] Scissor-type aerial work platforms have developed rapidly in recent years due to their unique scissor mechanical structure, high stability, high load capacity, and high efficiency.

[0003] Traditional scissor-type aerial work platforms usually only limit the load and lifting height. When two people are working, as the lifting height of the aerial work platform increases, the risk of tipping over becomes higher and higher, and the safety of the operators and the aerial work platform cannot be guaranteed. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a control method and device for an aerial work platform and an aerial work platform.

[0005] The present invention provides a control method for an aerial work platform, including:

[0006] Obtaining a work mode instruction and a lifting instruction of the aerial work platform;

[0007] If the work mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies a first preset range and a trigger signal of a first travel switch is received, a lifting termination instruction is generated; when it is determined that the lifting pressure corresponding to the current lifting height satisfies a second preset range and a trigger signal of a second travel switch is received, the lifting termination instruction is generated; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch.

[0008] According to the control method for an aerial work platform provided by the present invention, it further includes:

[0009] If the work mode instruction is a single-person mode instruction and the lifting instruction is the lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height satisfies a third preset range and the lifting height of the aerial work platform reaches a preset height, the lifting termination instruction is generated.

[0010] According to the control method for an aerial work platform provided by the present invention, it further includes:

[0011] Obtaining the tilt angles of the aerial work platform in each preset direction;

[0012] Determining the yaw amount of the aerial work platform in the preset direction based on the tilt angles;

[0013] When it is determined that the preset conditions are met based on the yaw amounts in the respective preset directions, the lifting termination instruction is generated.

[0014] According to the aerial work platform control method provided by the present invention, the determining of the yaw amount of the aerial work platform in the preset direction based on the tilt angle includes:

[0015] Obtain the dimension information of the aerial work platform in the direction corresponding to the tilt angle; wherein, the dimension information is determined based on the extension signals of the aerial work platform in the respective preset directions;

[0016] Based on the dimension information and the tilt angle, determine the yaw amount of the aerial work platform in the direction corresponding to the tilt angle.

[0017] According to the aerial work platform control method provided by the present invention, the first preset range, the second preset range, and the third preset range are respectively calibrated based on the first rated load, the second rated load, and the third rated load; wherein, the first rated load is greater than the second rated load.

[0018] According to the aerial work platform control method provided by the present invention, the first preset range, the second preset range, and the third preset range are calibrated through the following steps:

[0019] When the load of the aerial work platform is the first rated load, the second rated load, the third rated load, and no load, respectively obtain the measured values of the lifting height and the measured values of the lifting pressure of the aerial work platform;

[0020] Based on the measured values of the lifting height and the measured values of the lifting pressure, determine the first preset range, the second preset range, and the third preset range corresponding to the lifting height to be calibrated.

[0021] The present invention also provides an aerial work platform control device, including:

[0022] A data acquisition module, configured to acquire the working mode instruction and the lifting instruction of the aerial work platform;

[0023] A data processing module, configured to generate a lift termination instruction when the working mode instruction is a two-person mode instruction and the lift instruction is a lifting instruction, and it is determined that the lift pressure corresponding to the current lift height of the aerial work platform satisfies a first preset range and a trigger signal of a first travel switch is received; and to generate the lift termination instruction when it is determined that the lift pressure corresponding to the current lift height satisfies a second preset range and a trigger signal of a second travel switch is received; the lift termination instruction is used to control the aerial work platform to stop lifting; wherein, the lift height corresponding to the second travel switch is greater than the lift height corresponding to the first travel switch.

[0024] The present invention also provides an aerial work platform, comprising: a height detection device, a pressure detection device, a first travel switch, a second travel switch, and a controller;

[0025] The height detection device is configured to detect the current lift height of the aerial work platform;

[0026] The pressure detection device is configured to detect the lift pressure of the aerial work platform;

[0027] The controller is configured to obtain the working mode instruction and the lift instruction of the aerial work platform; and is further configured to generate a lift termination instruction when the working mode instruction is a two-person mode instruction and the lift instruction is a lifting instruction, and it is determined that the lift pressure corresponding to the current lift height of the aerial work platform satisfies a first preset range and a trigger signal of the first travel switch is received; to generate the lift termination instruction when it is determined that the lift pressure corresponding to the current lift height satisfies a second preset range and a trigger signal of the second travel switch is received; the lift termination instruction is used to control the aerial work platform to stop lifting; wherein, the lift height corresponding to the second travel switch is greater than the lift height corresponding to the first travel switch.

[0028] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the program, it implements the aerial work platform control method as described in any one of the above.

[0029] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the aerial work platform control method as described in any one of the above.

[0030] The high-altitude work platform control method, device and high-altitude work platform provided by the present invention obtain the work mode instruction and the lifting instruction of the high-altitude work platform. When the work mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the high-altitude work platform satisfies the first preset range and the trigger signal of the first travel switch is received, or when the lifting pressure corresponding to the current lifting height of the high-altitude work platform satisfies the second preset range and the trigger signal of the second travel switch is received, a lifting termination instruction is generated to control the high-altitude work platform to stop lifting, which can limit the lifting height differently according to the different loads of the high-altitude work platform during two-person operation, thereby effectively reducing the risk of tipping during two-person operation, and further ensuring the safety of the operator and the high-altitude work platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 is a flowchart of the high-altitude work platform control method provided by the present invention;

[0033] Figure 2 is a structural schematic diagram of the high-altitude work platform control device provided by the present invention;

[0034] Figure 3 is a structural schematic diagram of the high-altitude work platform provided by the present invention;

[0035] Figure 4 is a structural schematic diagram of the scissor-type high-altitude work platform provided by the present invention;

[0036] Figure 5 is a structural schematic diagram of the A-A plane of the workbench provided by the present invention;

[0037] Figure 6 is a schematic diagram of the positional relationship among the first travel switch, the second travel switch and the limit block provided by the present invention;

[0038] Figure 7 is a structural schematic diagram of the limit block provided by the present invention;

[0039] Figure 8 is a structural schematic diagram of the electronic device provided by the present invention;

[0040] Reference numerals:

[0041] 201: Data acquisition module; 202: Data processing module; 301: Height detection device; 302: Pressure detection device; 303: First travel switch; 304: Second travel switch; 305: Controller; 401: Chassis; 402: ECU; 403: Alarm; 404: Fork carriage; 405: Workbench; 406: Handle bracket; 407: PCU (Power-Control Unit); 408: First angle sensor; 409: Proximity switch; 410: Lifting cylinder; 411: Third angle sensor; 412: Pressure sensor; 501: Second angle sensor; 601: Limit block; 701: First trigger point; 702: Second trigger point; 801: Processor; 802: Communication interface; 803: Memory; 804: Communication bus. Detailed implementation manner

[0042] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present invention belong to the scope of protection of the present invention.

[0043] The following Figure 1 describes the control method of the aerial work platform of the present invention. The control method of the aerial work platform of the present invention is executed by electronic devices such as a controller or the hardware and / or software therein. The controller can be the controller of the aerial work platform itself, for example, the ECU (Electronic Control Unit) of the aerial work platform, or a newly added controller.

[0044] Such as Figure 1 shown, the control method of the aerial work platform of the present invention includes:

[0045] S101. Obtain the working mode instruction and the lifting instruction of the aerial work platform.

[0046] Specifically, the aerial work platform is, for example, a scissor aerial work platform. The working mode instruction of the aerial work platform can be a two-person mode instruction or a single-person mode instruction. The two-person mode is applicable to the scenario of two-person operation, and the single-person mode is applicable to the scenario of single-person operation. The lifting instruction can include a lifting instruction and a lowering instruction. The lifting instruction is an instruction for controlling the aerial work platform to perform a lifting action, and the lowering instruction is an instruction for controlling the aerial work platform to perform a lowering action.

[0047] Among them, the operator can select the working mode of the aerial work platform and input the lifting instruction through the control panel. For example, the operator can simultaneously press the enable key and the lifting key on the control panel to select the lifting instruction; long press the lifting key (e.g., press for 3 seconds) to switch between the double-person mode and the single-person mode.

[0048] S102. If the working mode instruction is a double-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform meets the first preset range and the trigger signal of the first travel switch is received, a lifting termination instruction is generated; when it is determined that the lifting pressure corresponding to the current lifting height meets the second preset range and the trigger signal of the second travel switch is received, the lifting termination instruction is generated; the lifting termination instruction is used to control the aerial work platform to stop lifting; where the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch.

[0049] Specifically, when the working mode instruction is a double-person mode instruction and the lifting instruction is a lifting instruction, during the lifting process of the aerial work platform, the lifting height of the aerial work platform can be detected in real time through a height detection device, and the lifting pressure of the aerial work platform can be detected in real time through a pressure detection device. For example, for a scissor-type aerial work platform, the lifting angle of the aerial work platform can be detected in real time through an angle sensor arranged on the fork frame, and the controller determines the lifting height according to the lifting angle; the lifting pressure can be the cylinder pressure of the lifting cylinder, and the pressure detection device can be a pressure sensor. The current lifting height is the lifting height of the aerial work platform at the current moment. The lifting pressure corresponding to the current lifting height is the lifting pressure at the current lifting height, that is, the lifting pressure detected at the current moment.

[0050] The first preset range and the second preset range are the preset value intervals of the lifting pressure at the current lifting height in the double-person mode, which can be obtained by calibration in advance or set manually. The specific method for determining that the lifting pressure corresponding to the current lifting height of the aerial work platform meets the first preset range or the second preset range can be set according to actual needs. For example, when the lifting pressure corresponding to the current lifting height is within the first preset range or the second preset range, it can be determined that the lifting pressure corresponding to the current lifting height meets the first preset range or the second preset range; it is also possible to determine the current load rate of the aerial work platform based on the first preset range or the current load rate based on the second preset range according to the lifting pressure corresponding to the current lifting height. When the current load rate based on the first preset range is less than or equal to the preset load rate, the lifting pressure corresponding to the current lifting height meets the first preset range. When the current load rate based on the second preset range is less than or equal to the preset load rate, the lifting pressure corresponding to the current lifting height meets the second preset range.

[0051] The first travel switch and the second travel switch are used to detect whether the aerial work platform is lifted to the corresponding preset height. Among them, the lifting height corresponding to the first travel switch can be used as the first preset height, and the lifting height corresponding to the second travel switch can be used as the second preset height. That is, when the aerial work platform is lifted to the first preset height, the first travel switch is triggered; when the aerial work platform is lifted to the second preset height, the second travel switch is triggered. Among them, the first travel switch and the second travel switch can be triggered through the trigger points on the limit block. For example, two trigger points can be set on the limit block, and the two trigger points are respectively used to trigger the first travel switch and the second travel switch to ensure the reliability of the trigger result. The first preset height and the second preset height can be preset. For example, they are set according to the equipment performance of the aerial work platform, and the second preset height is greater than the first preset height.

[0052] The first preset height corresponds to the first preset range, and the second preset height corresponds to the second preset range. The lifting pressure corresponding to the second preset range is less than the lifting pressure corresponding to the first preset range. If the lifting pressure corresponding to the current lifting height meets the first preset range, when the trigger signal of the first travel switch is received, a lifting termination instruction is generated. If the lifting pressure corresponding to the current lifting height meets the second preset range, when the trigger signal of the second travel switch is received, a lifting termination instruction is generated to control the aerial work platform to stop lifting through the lifting termination instruction and ensure the personal safety of the operator. At the same time, an alarm can also be given through the alarm device to prompt the operator that lifting cannot continue. Among them, the alarm can be cancelled after receiving the lowering instruction.

[0053] It should be noted that if the lifting pressure corresponding to the current lifting height meets both the first preset range and the second preset range, when the controller receives the trigger signal of the second travel switch, a lifting termination instruction is generated. If the lifting pressure corresponding to the current lifting height does not meet the first preset range, the lifting instruction is not executed.

[0054] Traditional scissor-type aerial work platforms usually only limit the load and the lifting height. When two people are working, as the lifting height of the aerial work platform increases, the risk of tipping over becomes higher and higher, and the safety of the operator and the aerial work platform cannot be guaranteed.

[0055] In an embodiment of the present invention, by obtaining a working mode instruction and a lifting instruction of an aerial work platform, when the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies a first preset range and a trigger signal of a first travel switch is received, or when the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies a second preset range and a trigger signal of a second travel switch is received, a lifting termination instruction is generated to control the aerial work platform to stop lifting, which can limit the lifting height differently according to different loads of the aerial work platform during two-person operation, thereby effectively reducing the risk of tipping during two-person operation, and further ensuring the safety of the operator and the aerial work platform.

[0056] Meanwhile, in an embodiment of the present invention, by limiting the lifting height differently according to different loads of the aerial work platform, the oil cylinder stroke can be fully utilized, and the applicability of the aerial work platform to different application scenarios is improved.

[0057] In addition, in an embodiment of the present invention, the lifting termination instruction is generated respectively based on the trigger signal of the first travel switch and the trigger signal of the second travel switch at different loads to control the aerial work platform to stop lifting. Through mechanical hard triggering, the accuracy and effectiveness of the lifting control can be effectively ensured, and the safety of the operator and the aerial work platform is further improved.

[0058] Based on the above embodiments, it further includes:

[0059] If the working mode instruction is a single-person mode instruction and the lifting instruction is the lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height satisfies a third preset range and the lifting height of the aerial work platform reaches a preset height, the lifting termination instruction is generated.

[0060] Specifically, the third preset range is the preset value range of the lifting pressure at the current lifting height in the single-person mode, which can be obtained by calibration in advance or set manually.

[0061] During the lifting process of the aerial work platform, if the lifting pressure corresponding to the current lifting height satisfies the third preset range, when it is detected that the lifting height of the aerial work platform reaches the preset height, a lifting termination instruction is generated. The preset height can be a third preset height, and the third preset height can be set in advance, for example, set according to the equipment performance of the aerial work platform.

[0062] The specific method for determining that the lifting height of the aerial work platform reaches the preset height can be set according to actual requirements. For example, the detected value of the lifting height of the aerial work platform can be obtained, and when it is determined that the detected value of the lifting height reaches the preset height, a lifting termination instruction is generated; or a termination instruction can be generated according to the trigger signal of the preset travel switch. Among them, the preset travel switch can be the first travel switch or the second travel switch. When the preset travel switch is the first travel switch, the third preset height can be the same as the first preset height. When the preset travel switch is the second travel switch, the third preset height can be the same as the second preset height, which is convenient for control and does not require adding a new travel switch, reducing the equipment cost.

[0063] In the embodiment of the present invention, when the work mode instruction is a single-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height satisfies the third preset range and the lifting height of the aerial work platform reaches the preset height, a lifting termination instruction is generated, which can realize the switching between the single-person mode and the double-person mode, and further improve the applicability of the aerial work platform to different application scenarios.

[0064] Based on any of the above embodiments, it further includes:

[0065] Obtain the tilt angle of the aerial work platform in each preset direction;

[0066] Based on the tilt angle, determine the yaw amount of the aerial work platform in the preset direction;

[0067] When it is determined that the preset conditions are met based on the yaw amounts in each of the preset directions, generate the lifting termination instruction.

[0068] Specifically, the preset direction can be set according to actual requirements. For example, it can include the length direction and the width direction. The tilt angle in the length direction can be detected by a first angle detection device arranged in the length direction, and the tilt angle in the width direction can be detected by a second angle detection device arranged in the width direction. The first angle detection device and the second angle detection device can use angle sensors.

[0069] The yaw amount of the aerial work platform in the length direction can be determined based on the tilt angle of the aerial work platform in the length direction, and the yaw amount of the aerial work platform in the width direction can be determined based on the tilt angle of the aerial work platform in the width direction.

[0070] The preset conditions can be set according to actual requirements. For example, when the yaw amount in the length direction is greater than the first preset yaw and / or the yaw amount in the width direction is greater than the second preset yaw, it is determined that the preset conditions are met, and a lift termination instruction is generated. At the same time, an alarm can also be given through an alarm device to prompt the operator of the tipping risk. Among them, the alarm can be cancelled after receiving a lowering instruction. Among them, the first preset yaw and the second preset yaw can be determined according to the lift height. For example, if the lift pressure corresponding to the current lift height satisfies the first preset range, the first preset yaw and the second preset yaw are determined based on the first preset height. For example, the first preset yaw and the second preset yaw can both be 5‰ of the first preset height. If the lift pressure corresponding to the current lift height satisfies the second preset range, the first preset yaw and the second preset yaw are determined based on the second preset height. For example, the first preset yaw and the second preset yaw can both be 5‰ of the second preset height.

[0071] It can be understood that the yaw amount of the aerial work platform in each preset direction can also be displayed in real time on the control panel.

[0072] In the embodiment of the present invention, by obtaining the tilt angles of the aerial work platform in each preset direction, determining the yaw amount of the aerial work platform in the preset direction based on the tilt angles, and generating a lift termination instruction when the preset conditions are met based on the yaw amounts in each preset direction, the risk of the aerial work platform tipping over can be further reduced, thereby improving the safety of the operator and the aerial work platform.

[0073] Based on any of the above embodiments, the determining the yaw amount of the aerial work platform in the preset direction based on the tilt angle includes:

[0074] Obtaining the dimension information of the aerial work platform in the direction corresponding to the tilt angle; wherein, the dimension information is determined based on the extension signals of the aerial work platform in each preset direction;

[0075] Based on the dimension information and the tilt angle, determining the yaw amount of the aerial work platform in the direction corresponding to the tilt angle.

[0076] Specifically, when determining the yaw amount of the aerial work platform in the preset direction, first determine the dimension information of the aerial work platform in the corresponding direction, such as length information and width information. Among them, the dimension information of the aerial work platform in each preset direction can be determined based on the extension signals of the aerial work platform in the corresponding direction.

[0077] The extension signal is used to determine whether the extension platform of the aerial work platform extends or retracts in the corresponding direction. The detection method of the extension signal can be set according to actual requirements. For example, the extension control signal of the aerial work platform can be determined by the controller, or it can be determined by a proximity switch. When determined by a proximity switch, a proximity switch can be set in the direction where the aerial work platform has an extension platform. No signal from the proximity switch indicates that the extension platform extends, and a signal from the proximity switch indicates that the extension platform retracts.

[0078] When it is determined that the extension platform extends based on the extension signal, the dimension information of the aerial work platform in the corresponding direction is the sum of the fixed dimension of the aerial work platform in the corresponding direction and the dimension of the extended extension platform; when it is determined that the extension platform retracts based on the extension signal, the dimension information of the aerial work platform in the corresponding direction is the fixed dimension of the aerial work platform in the corresponding direction.

[0079] After determining the dimension information of the aerial work platform in each preset direction, the yaw amount in the preset direction can be determined based on the dimension information in the preset direction and the tilt angle in the preset direction. For example, the yaw amount in the length direction is determined based on the dimension information in the length direction and the tilt angle in the length direction, and the yaw amount in the width direction is determined based on the dimension information in the width direction and the tilt angle in the width direction. As an optional implementation manner, the yaw amount δ of the aerial work platform in the length direction is shown in Equation (1), and the yaw amount λ in the width direction is shown in Equation (2):

[0080] δ = 2 * L * Sin 2 (β / 2) (1)

[0081] λ = 2 * W * Sin 2 (θ / 2) (2)

[0082] In the formula, L and W are the dimension information of the aerial work platform in the length direction and the width direction respectively; β and θ are the tilt angles of the aerial work platform in the length direction and the width direction respectively.

[0083] Based on the extension signal of the aerial work platform in each preset direction, the embodiment of the present invention determines the dimension information of the aerial work platform in the direction corresponding to the tilt angle, and determines the yaw amount of the aerial work platform in the direction corresponding to the tilt angle based on the dimension information and the tilt angle, which can effectively ensure the accuracy of the determined result of the yaw amount, and further improve the effectiveness of the generated lift termination instruction, and can prevent mis-termination of the lift while effectively ensuring the safety of the operator and the aerial work platform.

[0084] Based on any of the above embodiments, the first preset range, the second preset range, and the third preset range are calibrated respectively based on the first rated load, the second rated load, and the third rated load; wherein, the first rated load is greater than the second rated load.

[0085] Specifically, the first rated load and the second rated load respectively correspond to the first preset height and the second preset height, that is, they are the rated loads corresponding to different lifting heights in the double-person mode; the third rated load corresponds to the third preset height, that is, the rated load in the single-person mode.

[0086] The first preset range, the second preset range, and the third preset range can be pre-calibrated and stored in the storage device for the controller to call during the lifting process. The specific calibration process can be set according to actual needs. For example, when the load of the aerial work platform is the first rated load, the second rated load, and the third rated load, the lifting height and the lifting pressure of the aerial work platform during the lifting and / or lowering process can be detected respectively, and the first preset range, the second preset range, and the third preset range are calibrated according to the detection results of the lifting height and the lifting pressure.

[0087] In the embodiment of the present invention, the first preset range, the second preset range, and the third preset range are calibrated respectively based on the first rated load, the second rated load, and the third rated load, which can effectively ensure the accuracy of the calibration result, and further ensure the effectiveness of the generated lifting termination instruction, and further improve the safety of the operator and the aerial work platform.

[0088] Based on any of the above embodiments, the first preset range, the second preset range, and the third preset range are calibrated through the following steps:

[0089] When the load of the aerial work platform is the first rated load, the second rated load, the third rated load, and no load, the lifting height measurement value and the lifting pressure measurement value of the aerial work platform are obtained respectively;

[0090] Based on the lifting height measurement value and the lifting pressure measurement value, the first preset range, the second preset range, and the third preset range corresponding to the lifting height to be calibrated are determined.

[0091] Specifically, when the load of the aerial work platform is the first rated load, the second rated load, the third rated load, and no load, during the lifting and / or lowering process of the aerial work platform, the lifting height and lifting pressure of the aerial work platform are respectively detected to obtain the measured value of the lifting height and the measured value of the lifting pressure of the aerial work platform. For example, when the load of the aerial work platform is the first rated load, within the range of 0 to the second preset height, multiple groups of first data are collected at a preset frequency, and each group of first data includes the first lifting pressure and the first lifting height; when the load of the aerial work platform is the second rated load, within the range of 0 to the second preset height, multiple groups of second data are collected at a preset frequency, and each group of second data includes the second lifting pressure and the second lifting height; when the load of the aerial work platform is the third rated load, within the range of 0 to the third preset height, multiple groups of third data are collected at a preset frequency, and each group of third data includes the third lifting pressure and the third lifting height; when the load of the aerial work platform is no load, within the range of 0 to the second preset height or 0 to the third preset height, multiple groups of fourth data are collected at a preset frequency, and each group of fourth data includes the fourth lifting pressure and the fourth lifting height.

[0092] The lift height to be calibrated can include all heights within the full stroke range of the aerial work platform, or the full stroke range of the aerial work platform can be sampled at a preset interval. The specific method for determining the first preset range, the second preset range, and the third preset range corresponding to the lift height to be calibrated based on the measured value of the lift height and the measured value of the lift pressure can be set according to actual requirements. For example, the first preset range corresponding to the lift height to be calibrated can be determined based on the first data and the fourth data, that is, the first lift pressure corresponding to the lift height to be calibrated and the fourth lift pressure corresponding to the lift height to be calibrated are respectively used as the upper and lower limits of the first preset range corresponding to the lift height to be calibrated; the second preset range corresponding to the lift height to be calibrated can be determined based on the second data and the fourth data, that is, the second lift pressure corresponding to the lift height to be calibrated and the fourth lift pressure corresponding to the lift height to be calibrated are respectively used as the upper and lower limits of the second preset range corresponding to the lift height to be calibrated; the third preset range corresponding to the lift height to be calibrated can be determined based on the third data and the fourth data, that is, the third lift pressure corresponding to the lift height to be calibrated and the fourth lift pressure corresponding to the lift height to be calibrated are respectively used as the upper and lower limits of the third preset range corresponding to the lift height to be calibrated.

[0093] In addition, a first load curve corresponding to the first rated load can be generated based on multiple sets of first data, a second load curve corresponding to the second rated load can be generated based on multiple sets of second data, a third load curve corresponding to the third rated load can be generated based on multiple sets of third data, and a fourth load curve corresponding to no-load can be generated based on multiple sets of fourth data. Among them, the abscissa of the first load curve, the second load curve, the third load curve, and the fourth load curve can be the lifting height, and the ordinate can be the lifting pressure. The lifting pressure corresponding to the to-be-calibrated lifting height in the first load curve and the lifting pressure corresponding to the to-be-calibrated lifting height in the fourth load curve are respectively used as the upper and lower limits of the first preset range; the lifting pressure corresponding to the to-be-calibrated lifting height in the second load curve and the lifting pressure corresponding to the to-be-calibrated lifting height in the fourth load curve are respectively used as the upper and lower limits of the second preset range; the lifting pressure corresponding to the to-be-calibrated lifting height in the third load curve and the lifting pressure corresponding to the to-be-calibrated lifting height in the fourth load curve are respectively used as the upper and lower limits of the third preset range.

[0094] It can be understood that the measured values of the lifting height and the measured values of the lifting pressure can be corrected first, and the first preset range, the second preset range, and the third preset range corresponding to different lifting heights can be determined based on the corrected measured values of the lifting height and the measured values of the lifting pressure to ensure the accuracy of the calibration result.

[0095] In the embodiment of the present invention, when the load of the aerial work platform is the first rated load, the second rated load, the third rated load, and no-load, the measured values of the lifting height and the measured values of the lifting pressure of the aerial work platform are respectively obtained, and the first preset range, the second preset range, and the third preset range corresponding to the to-be-calibrated lifting height are determined based on the measured values of the lifting height and the measured values of the lifting pressure, which can effectively ensure the accuracy of the calibration results of the first preset range, the second preset range, and the third preset range, and further ensure the effectiveness of the generated lifting stop instruction, and further improve the safety of the operator and the aerial work platform.

[0096] Based on any of the above embodiments, determining that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies the first preset range includes:

[0097] Determining the current load rate of the aerial work platform based on the lifting pressure corresponding to the current lifting height and the first preset range;

[0098] If the current load rate is less than or equal to the preset load rate, it is determined that the lifting pressure corresponding to the current lifting height satisfies the first preset range.

[0099] Specifically, the current load rate refers to the load rate at the current moment. The specific method for determining the current load rate of the aerial work platform based on the lifting pressure corresponding to the current lifting height and the first preset range can be set according to actual needs. For example, the upper limit value of the lifting pressure corresponding to the current lifting height can be determined based on the first preset range, and the current load rate of the aerial work platform can be determined based on the lifting pressure corresponding to the current lifting height and the upper limit value. For example, the current load rate = (the lifting pressure corresponding to the current lifting height - the lower limit value) / (the upper limit value - the lower limit value), where the lower limit value is the lower limit value of the lifting pressure corresponding to the current lifting height, which can be the lifting pressure corresponding to the current lifting height when the aerial work platform is in the no-load state. The lower limit value can be pre-calibrated and stored in the controller.

[0100] The size of the preset load rate can be set according to actual needs. For example, it can be set to 110%. If the current load rate corresponding to the first preset range is less than or equal to the preset load rate, it is determined that the lifting pressure corresponding to the current lifting height meets the first preset range. When the trigger signal of the first travel switch is received, a lifting termination instruction is generated.

[0101] It can be understood that the current load rate of the aerial work platform can also be determined based on the lifting pressure corresponding to the current lifting height and the second preset range. If the current load rate is less than or equal to the preset load rate, it is determined that the lifting pressure corresponding to the current lifting height meets the second preset range; the current load rate of the aerial work platform can also be determined based on the lifting pressure corresponding to the current lifting height and the third preset range. If the current load rate is less than or equal to the preset load rate, it is determined that the lifting pressure corresponding to the current lifting height meets the third preset range.

[0102] In the embodiment of the present invention, the current load rate of the aerial work platform is determined based on the lifting pressure corresponding to the current lifting height and the first preset range. If the current load rate is less than or equal to the preset load rate, it is determined that the lifting pressure corresponding to the current lifting height meets the first preset range, which can effectively ensure the accuracy of the confirmation result of the maximum lifting height of the aerial work platform under the current load, thereby effectively improving the lifting height of the aerial work platform while ensuring the safety of the operator and the aerial work platform.

[0103] Next, the aerial work platform control device provided by the present invention will be described. The aerial work platform control device described below can be mutually referred to the aerial work platform control method described above. As Figure 2 shown, the aerial work platform control device of the present invention includes:

[0104] A data acquisition module 201, configured to acquire a working mode instruction and a lifting instruction of the aerial work platform;

[0105] The data processing module 202 is configured to generate a lifting termination instruction when the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting command, and it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies a first preset range and a trigger signal of the first travel switch is received; and generate the lifting termination instruction when it is determined that the lifting pressure corresponding to the current lifting height satisfies a second preset range and a trigger signal of the second travel switch is received; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch.

[0106] Based on the above embodiments, the data processing module 202 is further configured to:

[0107] When the working mode instruction is a single-person mode instruction and the lifting instruction is the lifting command, generate the lifting termination instruction when it is determined that the lifting pressure corresponding to the current lifting height satisfies a third preset range and the lifting height of the aerial work platform reaches a preset height.

[0108] Based on any of the above embodiments, it further includes a yaw detection module, and the yaw detection module is configured to:

[0109] Obtain the tilt angles of the aerial work platform in each preset direction;

[0110] Determine the yaw amount of the aerial work platform in the preset direction based on the tilt angle;

[0111] Generate the lifting termination instruction when it is determined that the preset conditions are met based on the yaw amounts in each of the preset directions.

[0112] Based on any of the above embodiments, the yaw detection module is specifically configured to:

[0113] Obtain the dimension information of the aerial work platform in the direction corresponding to the tilt angle; wherein, the dimension information is determined based on the extension signals of the aerial work platform in each of the preset directions;

[0114] Determine the yaw amount of the aerial work platform in the direction corresponding to the tilt angle based on the dimension information and the tilt angle.

[0115] Based on any of the above embodiments, the first preset range, the second preset range, and the third preset range are respectively calibrated based on a first rated load, a second rated load, and a third rated load; wherein, the first rated load is greater than the second rated load.

[0116] Based on any of the above embodiments, it further includes a calibration module, and the calibration module is specifically configured to:

[0117] When the load of the aerial work platform is the first rated load, the second rated load, the third rated load, and no load, the measured values of the lifting height and the lifting pressure of the aerial work platform are obtained respectively;

[0118] Based on the measured value of the lifting height and the measured value of the lifting pressure, the first preset range, the second preset range, and the third preset range corresponding to the lifting height to be calibrated are determined.

[0119] Based on any of the above embodiments, an embodiment of the present invention further provides an aerial work platform, as Figure 3 shown, the aerial work platform of the present invention includes: a height detection device 301, a pressure detection device 302, a first travel switch 303, a second travel switch 304, and a controller 305;

[0120] The height detection device 301 is used to detect the current lifting height of the aerial work platform;

[0121] The pressure detection device 302 is used to detect the lifting pressure of the aerial work platform;

[0122] The controller 305 is used to obtain the working mode instruction and the lifting instruction of the aerial work platform; it is also used to generate a lifting termination instruction when the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, and it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies the first preset range and the trigger signal of the first travel switch 303 is received; when it is determined that the lifting pressure corresponding to the current lifting height satisfies the second preset range and the trigger signal of the second travel switch 304 is received, the lifting termination instruction is generated; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch 304 is greater than the lifting height corresponding to the first travel switch 303.

[0123] Specifically, the aerial work platform is such as a scissor-type aerial work platform.

[0124] The following takes a scissor-type aerial work platform as an example to describe in detail the specific implementation process of the control method of the aerial work platform of the present invention.

[0125] The structural schematic diagram of the scissor-type aerial work platform is as Figure 4As shown in the figure, it includes a chassis 401, on which an ECU 402, an alarm 403 and a fork frame 404 are provided. The ECU 402 and the alarm 403 are arranged inside the hydraulic tank of the chassis 401. The first fixed end of the fork frame 404 is hinged to the chassis 401 lug through a pin shaft, and the first sliding end of the fork frame 404 is slidably connected to the first guide rail on the chassis 401 through a first slider. The fork frame 404 is also connected to a workbench 405. The second fixed end of the fork frame 404 is restricted in the card slot of the workbench 405 through a baffle on the workbench 405, and the second sliding end of the fork frame 404 is slidably connected to the second guide rail on the workbench 405 through a second slider. A handle bracket 406 is provided on the workbench 405, and a PCU 407 is provided on the handle bracket 406. A first angle sensor 408 and a proximity switch 409 are arranged in the length direction of the workbench 405. The first angle sensor 408 is used to detect the tilt angle of the workbench 405 in the length direction, and the proximity switch 409 is used to detect the extension signal of the workbench 405 in the length direction. A second angle sensor 501 is arranged in the width direction of the workbench 405, which is used to detect the tilt angle of the workbench 405 in the width direction. The installation position of the second angle sensor 501 is as Figure 5 shown. A lifting oil cylinder 410 and a third angle sensor 411 are provided on the fork frame 404. The lifting oil cylinder 410 is installed on the first inner arm weldment and the third inner arm weldment of the fork frame 404, and is hinged to the fork frame 404 through a pin shaft. The lifting and lowering of the fork frame 404 are controlled by the telescopic movement of the lifting oil cylinder 410. The third angle sensor 411 is arranged inside the first inner arm weldment of the fork frame 404, which is used to detect the lifting angle of the fork frame 404. A pressure sensor 412 is provided on the lifting oil cylinder 410, which is used to detect the oil cylinder pressure.

[0126] As Figure 6 shown, a first travel switch 303, a second travel switch 304 and a limit block 601 are also provided on the upper top plate bracket of the chassis 401. The first travel switch 303 and the second travel switch 304 are used to detect the first preset height and the second preset height of the workbench 405. As Figure 7 shown, a first trigger point 701 and a second trigger point 702 are provided on the limit block 601. The first trigger point 701 is used to trigger the first travel switch 303 when the lifting height of the workbench 405 reaches the first preset height, and the second trigger point 702 is used to trigger the second travel switch 304 when the lifting height of the workbench 405 reaches the second preset height.

[0127] The working process of the scissor-type aerial work platform is as follows:

[0128] The operator sends a working mode command and a lifting command to the ECU 402 through the PCU 407.

[0129] When the working mode instruction is the two-person mode instruction, the lifting angle of the forklift 404 is collected by the third angle sensor 411, and the oil cylinder pressure is collected by the pressure sensor 412. The lifting angle and the oil cylinder pressure are transmitted to the ECU 402. The ECU 402 determines the current lifting height according to the lifting angle collected by the third angle sensor 411. When the lifting pressure corresponding to the current lifting height determined according to the oil cylinder pressure collected by the pressure sensor 412 does not meet the first preset range, the lifting instruction is not executed, and an alarm is given through the alarm 403. If the lifting pressure corresponding to the current lifting height meets the second preset range, the lifting oil cylinder 410 is controlled to execute the lifting instruction. When the lifting height of the workbench 405 reaches the second preset height, the second trigger point 702 on the limit block 601 triggers the second travel switch 304. When the ECU 402 receives the trigger signal of the second travel switch 304, a lifting termination instruction is generated, the lifting oil cylinder 410 is controlled to stop executing the lifting instruction, and an alarm is given through the alarm 403. After executing the lowering instruction, the alarm stops. If the lifting pressure corresponding to the current lifting height meets the first preset range and does not meet the second preset range, the lifting oil cylinder 410 is controlled to execute the lifting instruction. When the lifting height of the workbench 405 reaches the first preset height, the first trigger point 701 on the limit block 601 triggers the first travel switch 303. When the ECU 402 receives the trigger signal of the first travel switch 303, a lifting termination instruction is generated, the lifting oil cylinder 410 is controlled to stop executing the lifting instruction, and an alarm is given through the alarm 403. After executing the lowering instruction, the alarm stops.

[0130] When the working mode instruction is the single-person mode, the lifting angle of the forklift 404 is collected by the third angle sensor 411, and the oil cylinder pressure is collected by the pressure sensor 412. The lifting angle and the oil cylinder pressure are transmitted to the ECU 402. The ECU 402 determines the current lifting height according to the lifting angle collected by the third angle sensor 411. When the lifting pressure corresponding to the current lifting height determined according to the oil cylinder pressure collected by the pressure sensor 412 does not meet the third preset range, the lifting instruction is not executed, and an alarm is given through the alarm 403. If the lifting pressure corresponding to the current lifting height meets the third preset range, the lifting oil cylinder 410 is controlled to execute the lifting instruction. When the lifting height of the workbench 405 reaches the third preset height, the second trigger point 702 on the limit block 601 triggers the second travel switch 304. When the ECU 402 receives the trigger signal of the second travel switch 304, a lifting termination instruction is generated, the lifting oil cylinder 410 is controlled to stop executing the lifting instruction, and an alarm is given through the alarm 403. After executing the lowering instruction, the alarm stops. Among them, the third preset height is the same as the second preset height.

[0131] Among them, during the lifting process, the tilt angles of the workbench 405 in the length direction and the width direction are respectively collected by the first angle sensor 408 and the second angle sensor 501; the ECU 402 determines whether the extension platform on the workbench 405 extends by detecting whether there is a signal from the proximity switch 409, and then determines the dimension of the workbench 405 in the length direction; the ECU 402 determines the yaw amount of the workbench 405 in the length direction according to the tilt angle and the dimension of the workbench 405 in the length direction, and determines the yaw amount of the workbench 405 in the width direction according to the tilt angle and the dimension of the workbench 405 in the width direction. When the yaw amount of the workbench 405 in the length direction and the yaw amount in the width direction are both less than the preset yaw, the lifting instruction sent by the PCU 407 can be normally executed; otherwise, the ECU 402 generates a lifting termination instruction, controls the lifting cylinder 410 to stop executing the lifting instruction, and alarms through the alarm 403, and stops alarming after executing the lowering instruction.

[0132] Figure 8 An example of a schematic physical structure diagram of an electronic device is as Figure 8 shown. The electronic device may include: a processor 801, a communications interface 802, a memory 803, and a communication bus 804. Among them, the processor 801, the communications interface 802, and the memory 803 communicate with each other through the communication bus 804. The processor 801 can call the logical instructions in the memory 803 to execute the high-altitude work platform control method, which includes: obtaining the work mode instruction and the lifting instruction of the high-altitude work platform;

[0133] If the work mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the high-altitude work platform satisfies the first preset range and a trigger signal of the first travel switch is received, a lifting termination instruction is generated; when it is determined that the lifting pressure corresponding to the current lifting height satisfies the second preset range and a trigger signal of the second travel switch is received, the lifting termination instruction is generated; the lifting termination instruction is used to control the high-altitude work platform to stop lifting; among them, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch.

[0134] In addition, when the logical instructions in the above-mentioned memory 803 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0135] On the other hand, the present invention also provides a computer program product. The computer program product includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the aerial work platform control method provided by the above-mentioned various methods. The method includes: obtaining a working mode instruction and a lifting instruction of the aerial work platform;

[0136] If the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies a first preset range and a trigger signal of a first travel switch is received, a lifting termination instruction is generated; when it is determined that the lifting pressure corresponding to the current lifting height satisfies a second preset range and a trigger signal of a second travel switch is received, the lifting termination instruction is generated; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch.

[0137] On yet another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is implemented to execute the aerial work platform control method provided by the above-mentioned various methods. The method includes: obtaining a working mode instruction and a lifting instruction of the aerial work platform;

[0138] If the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies the first preset range and the trigger signal of the first travel switch is received, a lifting termination instruction is generated; when it is determined that the lifting pressure corresponding to the current lifting height satisfies the second preset range and the trigger signal of the second travel switch is received, the lifting termination instruction is generated; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch.

[0139] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative work.

[0140] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for an aerial work platform, characterized in that, Including: Obtain the working mode instruction and the lifting instruction of the aerial work platform; If the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform satisfies the first preset range and the trigger signal of the first travel switch is received, generate a lifting termination instruction; when it is determined that the lifting pressure corresponding to the current lifting height satisfies the second preset range and the trigger signal of the second travel switch is received, generate the lifting termination instruction; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch; If the working mode instruction is a single-person mode instruction and the lifting instruction is the lifting instruction, when it is determined that the lifting pressure corresponding to the current lifting height satisfies the third preset range and the lifting height of the aerial work platform reaches the preset height, generate the lifting termination instruction; The first preset range, the second preset range and the third preset range are respectively calibrated based on the first rated load, the second rated load and the third rated load; wherein, the first rated load is greater than the second rated load; The first preset range, the second preset range and the third preset range are calibrated through the following steps: When the load of the aerial work platform is the first rated load, the second rated load, the third rated load and no load, respectively obtain the lifting height measurement value and the lifting pressure measurement value of the aerial work platform; Based on the lifting height measurement value and the lifting pressure measurement value, determine the first preset range, the second preset range and the third preset range corresponding to the lifting height to be calibrated.

2. The control method of the aerial work platform according to claim 1, characterized in that, Also including: Obtain the tilt angle of the aerial work platform in each preset direction; Based on the tilt angle, determine the yaw amount of the aerial work platform in the preset direction; When it is determined that the preset condition is satisfied based on the yaw amounts in each of the preset directions, generate the lifting termination instruction.

3. The high-altitude work platform control method according to claim 2, characterized in that The determining the yaw amount of the aerial work platform in the preset direction based on the tilt angle includes: Obtain the dimension information of the aerial work platform in the direction corresponding to the tilt angle; wherein, the dimension information is determined based on the extension signals of the aerial work platform in each of the preset directions; Based on the dimension information and the tilt angle, determine the yaw amount of the aerial work platform in the direction corresponding to the tilt angle.

4. A control device for an aerial work platform, characterized in that, Including: A data acquisition module, configured to obtain the working mode instruction and the lifting instruction of the aerial work platform; A data processing module, which is used to generate a lifting termination instruction when the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting command, and it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform meets the first preset range and the trigger signal of the first travel switch is received; when it is determined that the lifting pressure corresponding to the current lifting height meets the second preset range and the trigger signal of the second travel switch is received, generate the lifting termination instruction; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch; When the working mode instruction is a single-person mode instruction and the lifting instruction is the lifting command, generate the lifting termination instruction when it is determined that the lifting pressure corresponding to the current lifting height meets the third preset range and the lifting height of the aerial work platform reaches the preset height; The first preset range, the second preset range and the third preset range are respectively calibrated based on the first rated load, the second rated load and the third rated load; wherein, the first rated load is greater than the second rated load; The first preset range, the second preset range and the third preset range are calibrated through the following steps: When the load of the aerial work platform is the first rated load, the second rated load, the third rated load and no load, respectively obtain the measured values of the lifting height and the lifting pressure of the aerial work platform; Based on the measured values of the lifting height and the lifting pressure, determine the first preset range, the second preset range and the third preset range corresponding to the lifting height to be calibrated.

5. An aerial work platform, characterized in that, It includes: A height detection device, a pressure detection device, a first travel switch, a second travel switch and a controller; The height detection device is used to detect the current lifting height of the aerial work platform; The pressure detection device is used to detect the lifting pressure of the aerial work platform; The controller is used to obtain the working mode instruction and the lifting instruction of the aerial work platform; It is also used to generate a lifting termination instruction when the working mode instruction is a two-person mode instruction and the lifting instruction is a lifting command, and it is determined that the lifting pressure corresponding to the current lifting height of the aerial work platform meets the first preset range and the trigger signal of the first travel switch is received; when it is determined that the lifting pressure corresponding to the current lifting height meets the second preset range and the trigger signal of the second travel switch is received, generate the lifting termination instruction; the lifting termination instruction is used to control the aerial work platform to stop lifting; wherein, the lifting height corresponding to the second travel switch is greater than the lifting height corresponding to the first travel switch; When the working mode instruction is a single-person mode instruction and the lifting instruction is the lifting command, generate the lifting termination instruction when it is determined that the lifting pressure corresponding to the current lifting height meets the third preset range and the lifting height of the aerial work platform reaches the preset height; The first preset range, the second preset range, and the third preset range are calibrated respectively based on a first rated load, a second rated load, and a third rated load; wherein, the first rated load is greater than the second rated load. The first preset range, the second preset range, and the third preset range are calibrated through the following steps: When the load of the aerial work platform is the first rated load, the second rated load, the third rated load, and no load, the measured values of the lifting height and the lifting pressure of the aerial work platform are obtained respectively. Based on the measured value of the lifting height and the measured value of the lifting pressure, the first preset range, the second preset range, and the third preset range corresponding to the lifting height to be calibrated are determined.

6. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, When the processor executes the program, it implements the aerial work platform control method according to any one of claims 1 to 3.

7. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the aerial work platform control method according to any one of claims 1 to 3.

Citation Information

Patent Citations

  • Double-load weighing system for scissor-fork-type lifting working platform

    CN106829821A

  • Limiting method and system for maximum lifting height of forklift

    CN107673276A

  • Safety control system of aerial work platform

    CN110844850A