Branch shredder belt real-time rotating speed detection anti-slip control method and system

Abstract

The application discloses a kind of branch pulverizer belt real-time rotational speed detection anti-slip control method and system, wherein the method comprises: obtaining the speed value at the output shaft of power source, set as first speed value;The speed value of the driven part of transmission mechanism is obtained, set as second speed value;First speed value and second speed value in the preset first time period are compared and analyzed, and the slip rate and the duration value of each slip in the preset first time period are obtained;According to the range of the slip rate and the duration value of each slip in the preset first time period, the corresponding slip grade number is determined;According to the corresponding slip grade number, the corresponding anti-slip measure is matched, and the anti-slip measure is sent to the preset management end to display.The application detects the load condition of transmission mechanism by control system, and timely takes measures to protect, improves the service life and reliability of important components of transmission mechanism.

Description

Technical Field

[0001] This invention relates to the field of control technology, and more specifically, to a method and system for real-time speed detection and anti-slip control of a branch shredder belt. Background Technology

[0002] Almost all belt drive mechanisms in branch shredders experience belt slippage due to excessive load or resistance in certain components, leading to accelerated belt wear and reduced service life. Overload protection for belt drive mechanisms is primarily implemented through two aspects: mechanical principles and control technology. Firstly, it involves increasing the service life and reliability of critical components, such as by using wear-resistant materials and surface treatments. Secondly, it involves using a control system to detect the load on the drive mechanism and take timely protective measures. This invention mainly relates to the second approach. Summary of the Invention

[0003] In view of the above problems, the purpose of this invention is to provide a method and system for real-time speed detection and anti-slip control of the belt of a branch shredder, which can improve the service life and reliability of important components of the transmission mechanism.

[0004] The first aspect of this invention provides a method for real-time speed detection and anti-slip control of a belt in a branch shredder, comprising:

[0005] Obtain the speed value at the output shaft of the power source and set it as the first speed value; obtain the speed value of the driven part of the transmission mechanism and set it as the second speed value;

[0006] By comparing and analyzing the first speed value and the second speed value within the preset first time period, the slip rate and the duration of each slip are obtained within the preset first time period.

[0007] The corresponding slip level is determined based on the slip rate within the preset first time period and the range of areas where the duration of each slip falls.

[0008] Match the corresponding anti-slip measures according to the corresponding slip level, and send the anti-slip measures to the preset management terminal for display.

[0009] In this solution, the steps of obtaining the slip rate within a preset first time period and the duration of each slip specifically include:

[0010] A preset transmission speed conversion coefficient is used. The preset transmission speed conversion coefficient is multiplied by the second speed value to obtain the third speed value.

[0011] The difference between the first speed value and the third speed value is calculated, and the absolute value is taken to obtain the first speed difference.

[0012] When the first speed difference is within the preset first speed range, the corresponding belt drive mechanism is slipping, and the initial time and end time of the slipping of the corresponding belt drive mechanism are recorded.

[0013] Subtract the initial time from the end time of the slippage to obtain the corresponding slippage duration value;

[0014] Obtain the number of times the belt drive mechanism slips within a preset first time period;

[0015] The slip rate coefficient is calculated by multiplying the number of slips in the belt drive mechanism within a preset first time period by the preset slip rate coefficient to obtain the slip rate of the belt drive mechanism within the preset first time period.

[0016] This plan also includes:

[0017] Obtain the time interval between two consecutive slippages;

[0018] Determine whether the time interval between two adjacent slips is less than a preset first time threshold. If so, set the corresponding two adjacent slips as the same slip.

[0019] The duration of two consecutive slips is summed with the time interval between the corresponding consecutive slips to obtain the duration of the same slip.

[0020] This plan also includes:

[0021] When the first speed difference is less than the minimum value in the preset first speed range, there is no slippage in the corresponding belt drive mechanism;

[0022] When the difference in the first speed is greater than the maximum value in the preset first speed range, a severe skidding warning message is triggered.

[0023] The system sends a severe slippage warning message to the preset management terminal for display and shuts down the power source.

[0024] In this solution, the step of determining the corresponding slip level based on the slip rate within a preset first time period and the range within which the duration of each slip falls specifically includes:

[0025] When the slip rate within the preset first time period is less than the minimum value in the preset first slip rate range, or when the duration of each slip is less than the minimum value in the preset first duration range, the corresponding slip level number is set as the first slip level number.

[0026] When the slip rate within the preset first time period is within the preset first slip rate range and there is a slip duration value within the preset first duration range, the corresponding slip level number is set as the second slip level number.

[0027] When the slip rate within the preset first time period is greater than the maximum value in the preset first slip rate range and there is a slip duration value that is greater than or equal to the minimum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0028] When the slip rate within the preset first time period is greater than or equal to the minimum value in the preset first slip rate range and there is a slip duration value greater than the maximum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0029] This plan also includes:

[0030] A first speed weighting coefficient and a second speed weighting coefficient are preset. The first speed weighting coefficient is multiplied by the first speed value to obtain the minimum value in the preset first speed range.

[0031] Multiply the preset second speed weighting coefficient by the first speed value to obtain the maximum value in the preset first speed range;

[0032] The preset first speed weighting coefficient is less than the preset second speed weighting coefficient.

[0033] In this solution, matching the corresponding anti-slip measures according to the corresponding slip level number specifically means:

[0034] When the slippage level is the first slippage level, the corresponding slippage is set to slippage that does not affect the work and no anti-slippage measures are required.

[0035] When the slippage level is the second slippage level, the corresponding slippage is set to mild slippage, and the feeding of the corresponding branch shredder is stopped based on the preset feeding control system.

[0036] When the slippage level is the third slippage level, the corresponding slippage is set to severe slippage, and the power source of the corresponding branch shredder is turned off based on the preset power control system.

[0037] A second aspect of the present invention provides a real-time speed detection and anti-slip control system for a branch shredder belt, comprising a memory and a processor. The memory stores a method program for real-time speed detection and anti-slip control of a branch shredder belt. When the processor executes the method program, the following steps are implemented:

[0038] Obtain the speed value at the output shaft of the power source and set it as the first speed value; obtain the speed value of the driven part of the transmission mechanism and set it as the second speed value;

[0039] By comparing and analyzing the first speed value and the second speed value within the preset first time period, the slip rate and the duration of each slip are obtained within the preset first time period.

[0040] The corresponding slip level is determined based on the slip rate within the preset first time period and the range of areas where the duration of each slip falls.

[0041] Match the corresponding anti-slip measures according to the corresponding slip level, and send the anti-slip measures to the preset management terminal for display.

[0042] In this solution, the steps of obtaining the slip rate within a preset first time period and the duration of each slip specifically include:

[0043] A preset transmission speed conversion coefficient is used. The preset transmission speed conversion coefficient is multiplied by the second speed value to obtain the third speed value.

[0044] The difference between the first speed value and the third speed value is calculated, and the absolute value is taken to obtain the first speed difference.

[0045] When the first speed difference is within the preset first speed range, the corresponding belt drive mechanism is slipping, and the initial time and end time of the slipping of the corresponding belt drive mechanism are recorded.

[0046] Subtract the initial time from the end time of the slippage to obtain the corresponding slippage duration value;

[0047] Obtain the number of times the belt drive mechanism slips within a preset first time period;

[0048] The slip rate coefficient is calculated by multiplying the number of slips in the belt drive mechanism within a preset first time period by the preset slip rate coefficient to obtain the slip rate of the belt drive mechanism within the preset first time period.

[0049] This plan also includes:

[0050] Obtain the time interval between two consecutive slippages;

[0051] Determine whether the time interval between two adjacent slips is less than a preset first time threshold. If so, set the corresponding two adjacent slips as the same slip.

[0052] The duration of two consecutive slips is summed with the time interval between the corresponding consecutive slips to obtain the duration of the same slip.

[0053] This plan also includes:

[0054] When the first speed difference is less than the minimum value in the preset first speed range, there is no slippage in the corresponding belt drive mechanism;

[0055] When the difference in the first speed is greater than the maximum value in the preset first speed range, a severe skidding warning message is triggered.

[0056] The system sends a severe slippage warning message to the preset management terminal for display and shuts down the power source.

[0057] In this solution, the step of determining the corresponding slip level based on the slip rate within a preset first time period and the range within which the duration of each slip falls specifically includes:

[0058] When the slip rate within the preset first time period is less than the minimum value in the preset first slip rate range, or when the duration of each slip is less than the minimum value in the preset first duration range, the corresponding slip level number is set as the first slip level number.

[0059] When the slip rate within the preset first time period is within the preset first slip rate range and there is a slip duration value within the preset first duration range, the corresponding slip level number is set as the second slip level number.

[0060] When the slip rate within the preset first time period is greater than the maximum value in the preset first slip rate range and there is a slip duration value that is greater than or equal to the minimum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0061] When the slip rate within the preset first time period is greater than or equal to the minimum value in the preset first slip rate range and there is a slip duration value greater than the maximum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0062] This plan also includes:

[0063] A first speed weighting coefficient and a second speed weighting coefficient are preset. The first speed weighting coefficient is multiplied by the first speed value to obtain the minimum value in the preset first speed range.

[0064] Multiply the preset second speed weighting coefficient by the first speed value to obtain the maximum value in the preset first speed range;

[0065] The preset first speed weighting coefficient is less than the preset second speed weighting coefficient.

[0066] In this solution, matching the corresponding anti-slip measures according to the corresponding slip level number specifically means:

[0067] When the slippage level is the first slippage level, the corresponding slippage is set to slippage that does not affect the work and no anti-slippage measures are required.

[0068] When the slippage level is the second slippage level, the corresponding slippage is set to mild slippage, and the feeding of the corresponding branch shredder is stopped based on the preset feeding control system.

[0069] When the slippage level is the third slippage level, the corresponding slippage is set to severe slippage, and the power source of the corresponding branch shredder is turned off based on the preset power control system.

[0070] This invention discloses a method and system for real-time speed detection and anti-slip control of a branch shredder belt. The system detects the load on the transmission mechanism and takes timely protective measures, thereby improving the service life and reliability of important components of the transmission mechanism. Attached Figure Description

[0071] Figure 1 A flowchart of a method for real-time speed detection and anti-slip control of a belt in a branch shredder according to the present invention is shown;

[0072] Figure 2 A block diagram of a real-time speed detection and anti-slip control system for a branch shredder belt according to the present invention is shown. Detailed Implementation

[0073] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0074] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0075] Figure 1 The flowchart of a method for real-time speed detection and anti-slip control of a belt in a branch shredder according to the present invention is shown.

[0076] like Figure 1 As shown, this invention discloses a method for real-time speed detection and anti-slip control of a branch shredder belt, comprising:

[0077] S101, Obtain the speed value at the output shaft of the power source and set it as the first speed value; Obtain the speed value of the driven part of the transmission mechanism and set it as the second speed value;

[0078] S102, compare and analyze the first speed value and the second speed value within the preset first time period to obtain the slip rate and the duration of each slip within the preset first time period;

[0079] S103, determine the corresponding slip level number based on the slip rate within the preset first time period and the range of areas where the duration value of each slip falls;

[0080] S104, Match the corresponding anti-slip measures according to the corresponding slip level, and send the anti-slip measures to the preset management terminal for display.

[0081] According to an embodiment of the present invention, under the premise of an electrically controlled power source, a speed sensor is installed at the output shaft of the power source (motor, engine, generator, etc.) to obtain the speed value at the output shaft of the power source in real time; at the same time, a speed sensor, such as a photoelectric encoder, Hall sensor, magnetic sensor, etc., is added to the driven part of the transmission mechanism to obtain the speed value of the driven part of the transmission mechanism in real time. The first speed value and the second speed value are compared and analyzed to determine whether slippage has occurred, and the slippage rate and the duration of each slippage are calculated. Then, based on the slippage rate and the duration of each slippage, the slippage is divided into different degrees of slippage, and the control system takes different measures according to the different degrees of slippage.

[0082] According to an embodiment of the present invention, the step of obtaining the slip rate within a preset first time period and the duration of each slip specifically includes:

[0083] A preset transmission speed conversion coefficient is used. The preset transmission speed conversion coefficient is multiplied by the second speed value to obtain the third speed value.

[0084] The difference between the first speed value and the third speed value is calculated, and the absolute value is taken to obtain the first speed difference.

[0085] When the first speed difference is within the preset first speed range, the corresponding belt drive mechanism is slipping, and the initial time and end time of the slipping of the corresponding belt drive mechanism are recorded.

[0086] Subtract the initial time from the end time of the slippage to obtain the corresponding slippage duration value;

[0087] Obtain the number of times the belt drive mechanism slips within a preset first time period;

[0088] The slip rate coefficient is calculated by multiplying the number of slips in the belt drive mechanism within a preset first time period by the preset slip rate coefficient to obtain the slip rate of the belt drive mechanism within the preset first time period.

[0089] It should be noted that, for example, if the speed value of the driven part is changed to twice the speed value at the output shaft of the power source through the belt drive mechanism, the corresponding preset transmission speed conversion coefficient is 0.5. The second speed value is converted to the same position as the first speed value through the preset transmission speed conversion coefficient. The first speed value is subtracted from the third speed value and the absolute value is taken to obtain the first speed difference. If the first speed difference is within the preset first speed range, such as the preset first speed range [0.02, 0.1] meters per second, it indicates that the corresponding belt drive mechanism is slipping.

[0090] According to an embodiment of the present invention, it further includes:

[0091] Obtain the time interval between two consecutive slippages;

[0092] Determine whether the time interval between two adjacent slips is less than a preset first time threshold. If so, set the corresponding two adjacent slips as the same slip.

[0093] The duration of two consecutive slips is summed with the time interval between the corresponding consecutive slips to obtain the duration of the same slip.

[0094] It should be noted that each slip is numbered. For example, if slip number 2 is taken as the baseline, the corresponding adjacent slips are slip number 1 and slip number 3. If the first time interval is preset to 0.5 seconds, when the time interval between slip number 1 and slip number 2 is less than 0.5 seconds, slip number 1 and slip number 2 are merged to obtain a new slip data, which is set as the same slip, and slip number 1 and slip number 2 are deleted.

[0095] According to an embodiment of the present invention, it further includes:

[0096] When the first speed difference is less than the minimum value in the preset first speed range, there is no slippage in the corresponding belt drive mechanism;

[0097] When the difference in the first speed is greater than the maximum value in the preset first speed range, a severe skidding warning message is triggered.

[0098] The system sends a severe slippage warning message to the preset management terminal for display and shuts down the power source.

[0099] It should be noted that when the first speed difference is less than the minimum value in the preset first speed range, the corresponding first speed difference may be due to the accuracy error of the speed sensor. Therefore, there is no slippage in the corresponding belt drive mechanism.

[0100] According to an embodiment of the present invention, the step of determining the corresponding slip level number based on the slip rate within a preset first time period and the range of areas where the duration of each slip falls specifically includes:

[0101] When the slip rate within the preset first time period is less than the minimum value in the preset first slip rate range, or when the duration of each slip is less than the minimum value in the preset first duration range, the corresponding slip level number is set as the first slip level number.

[0102] When the slip rate within the preset first time period is within the preset first slip rate range and there is a slip duration value within the preset first duration range, the corresponding slip level number is set as the second slip level number.

[0103] When the slip rate within the preset first time period is greater than the maximum value in the preset first slip rate range and there is a slip duration value that is greater than or equal to the minimum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0104] When the slip rate within the preset first time period is greater than or equal to the minimum value in the preset first slip rate range and there is a slip duration value greater than the maximum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0105] It should be noted that, for example, if the preset first slip rate range is [1%, 2%] and the preset first duration range is [5s, 8s], where 's' represents the time unit in seconds, then when the slip rate within the preset first time period is less than 1% or the duration of each slip is less than 5s, the corresponding slip level is set as the first slip level; when the slip rate within the preset first time period is in the range of [1%, 2%] and there is a slip with a duration of [5s, 8s], the corresponding slip level is set as the second slip level; when the slip rate within the preset first time period is greater than 2% and there is a slip with a duration greater than 5s, or when the slip rate within the preset first time period is greater than 1% and there is a slip with a duration greater than 8s, the corresponding slip level is set as the third slip level; when both the second and third slip levels exist simultaneously, the corresponding slip level is set as the third slip level.

[0106] According to an embodiment of the present invention, it further includes:

[0107] A first speed weighting coefficient and a second speed weighting coefficient are preset. The first speed weighting coefficient is multiplied by the first speed value to obtain the minimum value in the preset first speed range.

[0108] Multiply the preset second speed weighting coefficient by the first speed value to obtain the maximum value in the preset first speed range;

[0109] The preset first speed weighting coefficient is less than the preset second speed weighting coefficient.

[0110] It should be noted that the preset first speed range and the first speed value are directly proportional. The larger the first speed value, the larger the corresponding value in the preset first speed range. When the first speed value is larger, it means that the allowable error between the corresponding first speed value and the third speed value is larger.

[0111] According to an embodiment of the present invention, the step of matching the corresponding anti-slip measures according to the corresponding slip level number specifically includes:

[0112] When the slippage level is the first slippage level, the corresponding slippage is set to slippage that does not affect the work and no anti-slippage measures are required.

[0113] When the slippage level is the second slippage level, the corresponding slippage is set to mild slippage, and the feeding of the corresponding branch shredder is stopped based on the preset feeding control system.

[0114] When the slippage level is the third slippage level, the corresponding slippage is set to severe slippage, and the power source of the corresponding branch shredder is turned off based on the preset power control system.

[0115] It should be noted that different anti-slip measures are implemented according to different slip levels, which improves the service life and reliability of important components of the transmission mechanism.

[0116] According to an embodiment of the present invention, it further includes:

[0117] When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is greater than the preset second speed threshold, a speed sensor warning message is triggered.

[0118] When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is less than or equal to the preset second speed threshold, record that the third speed value is greater than the first speed value once.

[0119] Get the total number of times the third speed value is greater than the first speed value within a preset first time period;

[0120] Determine whether the total number of times the third speed value is greater than the first speed value within a preset first time period is greater than a preset first number threshold; if so, trigger a speed sensor warning message;

[0121] The speed sensor warning information is sent to a preset management terminal for display.

[0122] It should be noted that under normal circumstances, the first speed value is greater than or equal to the third speed value. If the third speed value is greater than the first speed value, it indicates that the speed sensor has a sensing error. If the first speed difference is greater than the preset second speed threshold, it indicates that the speed sensor has an excessive sensing error, thus triggering a speed sensor warning message. If the first speed difference is less than or equal to the preset second speed threshold and the corresponding total number of times is greater than the preset first number threshold, it indicates that the corresponding speed sensor has a sensing error that is too frequent, thus triggering a speed sensor warning message to indicate that there is a problem with the corresponding speed sensor in the preset management terminal.

[0123] Figure 2 A block diagram of a real-time speed detection and anti-slip control system for a branch shredder belt according to the present invention is shown.

[0124] like Figure 2 As shown, a second aspect of the present invention provides a real-time speed detection and anti-slip control system 2 for a branch shredder belt, comprising a memory 21 and a processor 22. The memory stores a method program for real-time speed detection and anti-slip control of a branch shredder belt. When the processor executes the method program, the following steps are implemented:

[0125] Obtain the speed value at the output shaft of the power source and set it as the first speed value; obtain the speed value of the driven part of the transmission mechanism and set it as the second speed value;

[0126] By comparing and analyzing the first speed value and the second speed value within the preset first time period, the slip rate and the duration of each slip are obtained within the preset first time period.

[0127] The corresponding slip level is determined based on the slip rate within the preset first time period and the range of areas where the duration of each slip falls.

[0128] Match the corresponding anti-slip measures according to the corresponding slip level, and send the anti-slip measures to the preset management terminal for display.

[0129] According to an embodiment of the present invention, under the premise of an electrically controlled power source, a speed sensor is installed at the output shaft of the power source (motor, engine, generator, etc.) to obtain the speed value at the output shaft of the power source in real time; at the same time, a speed sensor, such as a photoelectric encoder, Hall sensor, magnetic sensor, etc., is added to the driven part of the transmission mechanism to obtain the speed value of the driven part of the transmission mechanism in real time. The first speed value and the second speed value are compared and analyzed to determine whether slippage has occurred, and the slippage rate and the duration of each slippage are calculated. Then, based on the slippage rate and the duration of each slippage, the slippage is divided into different degrees of slippage, and the control system takes different measures according to the different degrees of slippage.

[0130] According to an embodiment of the present invention, the step of obtaining the slip rate within a preset first time period and the duration of each slip specifically includes:

[0131] A preset transmission speed conversion coefficient is used. The preset transmission speed conversion coefficient is multiplied by the second speed value to obtain the third speed value.

[0132] The difference between the first speed value and the third speed value is calculated, and the absolute value is taken to obtain the first speed difference.

[0133] When the first speed difference is within the preset first speed range, the corresponding belt drive mechanism is slipping, and the initial time and end time of the slipping of the corresponding belt drive mechanism are recorded.

[0134] Subtract the initial time from the end time of the slippage to obtain the corresponding slippage duration value;

[0135] Obtain the number of times the belt drive mechanism slips within a preset first time period;

[0136] The slip rate coefficient is calculated by multiplying the number of slips in the belt drive mechanism within a preset first time period by the preset slip rate coefficient to obtain the slip rate of the belt drive mechanism within the preset first time period.

[0137] It should be noted that, for example, if the speed value of the driven part is changed to twice the speed value at the output shaft of the power source through the belt drive mechanism, the corresponding preset transmission speed conversion coefficient is 0.5. The second speed value is converted to the same position as the first speed value through the preset transmission speed conversion coefficient. The first speed value is subtracted from the third speed value and the absolute value is taken to obtain the first speed difference. If the first speed difference is within the preset first speed range, such as the preset first speed range [0.02, 0.1] meters per second, it indicates that the corresponding belt drive mechanism is slipping.

[0138] According to an embodiment of the present invention, it further includes:

[0139] Obtain the time interval between two consecutive slippages;

[0140] Determine whether the time interval between two adjacent slips is less than a preset first time threshold. If so, set the corresponding two adjacent slips as the same slip.

[0141] The duration of two consecutive slips is summed with the time interval between the corresponding consecutive slips to obtain the duration of the same slip.

[0142] It should be noted that each slip is numbered. For example, if slip number 2 is taken as the baseline, the corresponding adjacent slips are slip number 1 and slip number 3. If the first time interval is preset to 0.5 seconds, when the time interval between slip number 1 and slip number 2 is less than 0.5 seconds, slip number 1 and slip number 2 are merged to obtain a new slip data, which is set as the same slip, and slip number 1 and slip number 2 are deleted.

[0143] According to an embodiment of the present invention, it further includes:

[0144] When the first speed difference is less than the minimum value in the preset first speed range, there is no slippage in the corresponding belt drive mechanism;

[0145] When the difference in the first speed is greater than the maximum value in the preset first speed range, a severe skidding warning message is triggered.

[0146] The system sends a severe slippage warning message to the preset management terminal for display and shuts down the power source.

[0147] It should be noted that when the first speed difference is less than the minimum value in the preset first speed range, the corresponding first speed difference may be due to the accuracy error of the speed sensor. Therefore, there is no slippage in the corresponding belt drive mechanism.

[0148] According to an embodiment of the present invention, the step of determining the corresponding slip level number based on the slip rate within a preset first time period and the range of areas where the duration of each slip falls specifically includes:

[0149] When the slip rate within the preset first time period is less than the minimum value in the preset first slip rate range, or when the duration of each slip is less than the minimum value in the preset first duration range, the corresponding slip level number is set as the first slip level number.

[0150] When the slip rate within the preset first time period is within the preset first slip rate range and there is a slip duration value within the preset first duration range, the corresponding slip level number is set as the second slip level number.

[0151] When the slip rate within the preset first time period is greater than the maximum value in the preset first slip rate range and there is a slip duration value that is greater than or equal to the minimum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0152] When the slip rate within the preset first time period is greater than or equal to the minimum value in the preset first slip rate range and there is a slip duration value greater than the maximum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

[0153] It should be noted that, for example, if the preset first slip rate range is [1%, 2%] and the preset first duration range is [5s, 8s], where 's' represents the time unit in seconds, then when the slip rate within the preset first time period is less than 1% or the duration of each slip is less than 5s, the corresponding slip level is set as the first slip level; when the slip rate within the preset first time period is in the range of [1%, 2%] and there is a slip with a duration of [5s, 8s], the corresponding slip level is set as the second slip level; when the slip rate within the preset first time period is greater than 2% and there is a slip with a duration greater than 5s, or when the slip rate within the preset first time period is greater than 1% and there is a slip with a duration greater than 8s, the corresponding slip level is set as the third slip level; when both the second and third slip levels exist simultaneously, the corresponding slip level is set as the third slip level.

[0154] According to an embodiment of the present invention, it further includes:

[0155] A first speed weighting coefficient and a second speed weighting coefficient are preset. The first speed weighting coefficient is multiplied by the first speed value to obtain the minimum value in the preset first speed range.

[0156] Multiply the preset second speed weighting coefficient by the first speed value to obtain the maximum value in the preset first speed range;

[0157] The preset first speed weighting coefficient is less than the preset second speed weighting coefficient.

[0158] It should be noted that the preset first speed range and the first speed value are directly proportional. The larger the first speed value, the larger the corresponding value in the preset first speed range. When the first speed value is larger, it means that the allowable error between the corresponding first speed value and the third speed value is larger.

[0159] According to an embodiment of the present invention, the step of matching the corresponding anti-slip measures according to the corresponding slip level number specifically includes:

[0160] When the slippage level is the first slippage level, the corresponding slippage is set to slippage that does not affect the work and no anti-slippage measures are required.

[0161] When the slippage level is the second slippage level, the corresponding slippage is set to mild slippage, and the feeding of the corresponding branch shredder is stopped based on the preset feeding control system.

[0162] When the slippage level is the third slippage level, the corresponding slippage is set to severe slippage, and the power source of the corresponding branch shredder is turned off based on the preset power control system.

[0163] It should be noted that different anti-slip measures are implemented according to different slip levels, which improves the service life and reliability of important components of the transmission mechanism.

[0164] According to an embodiment of the present invention, it further includes:

[0165] When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is greater than the preset second speed threshold, a speed sensor warning message is triggered.

[0166] When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is less than or equal to the preset second speed threshold, record that the third speed value is greater than the first speed value once.

[0167] Get the total number of times the third speed value is greater than the first speed value within a preset first time period;

[0168] Determine whether the total number of times the third speed value is greater than the first speed value within a preset first time period is greater than a preset first number threshold; if so, trigger a speed sensor warning message;

[0169] The speed sensor warning information is sent to a preset management terminal for display.

[0170] It should be noted that under normal circumstances, the first speed value is greater than or equal to the third speed value. If the third speed value is greater than the first speed value, it indicates that the speed sensor has a sensing error. If the first speed difference is greater than the preset second speed threshold, it indicates that the speed sensor has an excessive sensing error, thus triggering a speed sensor warning message. If the first speed difference is less than or equal to the preset second speed threshold and the corresponding total number of times is greater than the preset first number threshold, it indicates that the corresponding speed sensor has a sensing error that is too frequent, thus triggering a speed sensor warning message to indicate that there is a problem with the corresponding speed sensor in the preset management terminal.

[0171] This invention discloses a real-time speed detection and anti-slip control method and system for a branch shredder belt. The method includes: acquiring the speed value at the output shaft of the power source, designated as a first speed value; acquiring the speed value of the driven part of the transmission mechanism, designated as a second speed value; comparing and analyzing the first speed value and the second speed value within a preset first time period to obtain the slippage rate and the duration of each slippage within the preset first time period; determining the corresponding slippage level based on the range within which the slippage rate and the duration of each slippage fall within the preset first time period; matching corresponding anti-slippage measures according to the corresponding slippage level, and sending the anti-slippage measures to a preset management terminal for display. This invention uses a control system to detect the load condition of the transmission mechanism and takes timely protective measures, thereby improving the service life and reliability of important components of the transmission mechanism.

[0172] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0173] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0174] In addition, in the various embodiments of the present invention, each functional unit can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0175] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0176] Alternatively, if the integrated units of this invention are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A method for real-time speed detection and anti-slip control of a belt in a branch shredder, characterized in that, include: Obtain the speed value at the output shaft of the power source and set it as the first speed value; obtain the speed value of the driven part of the transmission mechanism and set it as the second speed value; By comparing and analyzing the first speed value and the second speed value within the preset first time period, the slip rate and the duration of each slip are obtained within the preset first time period. The corresponding slip level is determined based on the slip rate within the preset first time period and the range of areas where the duration of each slip falls. Match the corresponding anti-slip measures according to the corresponding slip level, and send the anti-slip measures to the preset management terminal for display; The steps of obtaining the slip rate within a preset first time period and the duration of each slip specifically include: A preset transmission speed conversion coefficient is used. The preset transmission speed conversion coefficient is multiplied by the second speed value to obtain the third speed value. The difference between the first speed value and the third speed value is calculated, and the absolute value is taken to obtain the first speed difference. When the first speed difference is within the preset first speed range, the corresponding belt drive mechanism is slipping, and the initial time and end time of the slipping of the corresponding belt drive mechanism are recorded. Subtract the initial time from the end time of the slippage to obtain the corresponding slippage duration value; Obtain the number of times the belt drive mechanism slips within a preset first time period; The slip rate coefficient is calculated by multiplying the number of slips in the belt drive mechanism within a preset first time period by the preset slip rate coefficient to obtain the slip rate of the belt drive mechanism within the preset first time period. Also includes: Obtain the time interval between two consecutive slippages; Determine whether the time interval between two adjacent slips is less than a preset first time threshold. If so, set the corresponding two adjacent slips as the same slip. The duration of two consecutive slips is added together with the time interval between the corresponding consecutive slips to obtain the duration of the same slip. Also includes: When the first speed difference is less than the minimum value in the preset first speed range, there is no slippage in the corresponding belt drive mechanism; When the difference in the first speed is greater than the maximum value in the preset first speed range, a severe skidding warning message is triggered. The system sends a severe slippage warning message to the preset management terminal for display and shuts down the power source. Also includes: When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is greater than the preset second speed threshold, a speed sensor warning message is triggered. When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is less than or equal to the preset second speed threshold, record that the third speed value is greater than the first speed value once. Get the total number of times the third speed value is greater than the first speed value within a preset first time period; Determine whether the total number of times the third speed value is greater than the first speed value within a preset first time period is greater than a preset first number threshold; if so, trigger a speed sensor warning message; The speed sensor warning information is sent to a preset management terminal for display. The specific steps for matching the corresponding anti-slip measures based on the corresponding slip level are as follows: When the slippage level is the first slippage level, the corresponding slippage is set to slippage that does not affect the work and no anti-slippage measures are required. When the slippage level is the second slippage level, the corresponding slippage is set to mild slippage, and the feeding of the corresponding branch shredder is stopped based on the preset feeding control system. When the slippage level is the third slippage level, the corresponding slippage is set to severe slippage, and the power source of the corresponding branch shredder is turned off based on the preset power control system.

2. The method for real-time speed detection and anti-slip control of the belt of a branch shredder according to claim 1, characterized in that, The step of determining the corresponding slip level number based on the slip rate within a preset first time period and the range within which the duration of each slip falls specifically includes: When the slip rate within the preset first time period is less than the minimum value in the preset first slip rate range, or when the duration of each slip is less than the minimum value in the preset first duration range, the corresponding slip level number is set as the first slip level number. When the slip rate within the preset first time period is within the preset first slip rate range and there is a slip duration value within the preset first duration range, the corresponding slip level number is set as the second slip level number. When the slip rate within the preset first time period is greater than the maximum value in the preset first slip rate range and there is a slip duration value that is greater than or equal to the minimum value in the preset first duration range, the corresponding slip level number is set to the third slip level number. When the slip rate within the preset first time period is greater than or equal to the minimum value in the preset first slip rate range and there is a slip duration value greater than the maximum value in the preset first duration range, the corresponding slip level number is set to the third slip level number.

3. The method for real-time speed detection and anti-slip control of the belt of a branch shredder according to claim 1, characterized in that, Also includes: A first speed weighting coefficient and a second speed weighting coefficient are preset. The first speed weighting coefficient is multiplied by the first speed value to obtain the minimum value in the preset first speed range. Multiply the preset second speed weighting coefficient by the first speed value to obtain the maximum value in the preset first speed range; The preset first speed weighting coefficient is less than the preset second speed weighting coefficient.

4. A real-time speed detection and anti-slip control system for a branch shredder belt, characterized in that, The system includes a memory and a processor. The memory stores a program for a real-time speed detection and anti-slip control method for a branch shredder belt. When the processor executes the program, the following steps are performed: Obtain the speed value at the output shaft of the power source and set it as the first speed value; obtain the speed value of the driven part of the transmission mechanism and set it as the second speed value; By comparing and analyzing the first speed value and the second speed value within the preset first time period, the slip rate and the duration of each slip are obtained within the preset first time period. The corresponding slip level is determined based on the slip rate within the preset first time period and the range of areas where the duration of each slip falls. Match the corresponding anti-slip measures according to the corresponding slip level, and send the anti-slip measures to the preset management terminal for display; The steps of obtaining the slip rate within a preset first time period and the duration of each slip specifically include: A preset transmission speed conversion coefficient is used. The preset transmission speed conversion coefficient is multiplied by the second speed value to obtain the third speed value. The difference between the first speed value and the third speed value is calculated, and the absolute value is taken to obtain the first speed difference. When the first speed difference is within the preset first speed range, the corresponding belt drive mechanism is slipping, and the initial time and end time of the slipping of the corresponding belt drive mechanism are recorded. Subtract the initial time from the end time of the slippage to obtain the corresponding slippage duration value; Obtain the number of times the belt drive mechanism slips within a preset first time period; The slip rate coefficient is calculated by multiplying the number of slips in the belt drive mechanism within a preset first time period by the preset slip rate coefficient to obtain the slip rate of the belt drive mechanism within the preset first time period. Also includes: Obtain the time interval between two consecutive slippages; Determine whether the time interval between two adjacent slips is less than a preset first time threshold. If so, set the corresponding two adjacent slips as the same slip. The duration of two consecutive slips is added together with the time interval between the corresponding consecutive slips to obtain the duration of the same slip. Also includes: When the first speed difference is less than the minimum value in the preset first speed range, there is no slippage in the corresponding belt drive mechanism; When the difference in the first speed is greater than the maximum value in the preset first speed range, a severe skidding warning message is triggered. The system sends a severe slippage warning message to the preset management terminal for display and shuts down the power source. Also includes: When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is greater than the preset second speed threshold, a speed sensor warning message is triggered. When the third speed value is greater than the first speed value, and the difference between the first speed values ​​is less than or equal to the preset second speed threshold, record that the third speed value is greater than the first speed value once. Get the total number of times the third speed value is greater than the first speed value within a preset first time period; Determine whether the total number of times the third speed value is greater than the first speed value within a preset first time period is greater than a preset first number threshold; if so, trigger a speed sensor warning message; The speed sensor warning information is sent to a preset management terminal for display. The specific steps for matching the corresponding anti-slip measures based on the corresponding slip level are as follows: When the slippage level is the first slippage level, the corresponding slippage is set to slippage that does not affect the work and no anti-slippage measures are required. When the slippage level is the second slippage level, the corresponding slippage is set to mild slippage, and the feeding of the corresponding branch shredder is stopped based on the preset feeding control system. When the slippage level is the third slippage level, the corresponding slippage is set to severe slippage, and the power source of the corresponding branch shredder is turned off based on the preset power control system.

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