Tool disordered pressing protection method and device, computer readable storage medium and product

Abstract

The embodiment of the invention relates to the field of electric appliance tool protection, and discloses a tool disordered pressing protection method and device, a computer readable storage medium and a product. The method comprises the steps of obtaining a current working state of a tool; when the working state is a first working state, acquiring a first working parameter of the tool; judging whether the tool is in an abnormal state or not according to the first working parameter; when the tool is in an abnormal state, a preset protection method is adopted to protect the tool, and the preset protection method comprises the step of controlling the temperature of a driving module of the tool within a preset temperature range. According to the method, whether the tool is in the abnormal state or not is judged in the specific working state of the tool, the abnormal state is the disordered pressing state, and whether the tool is in the disordered pressing state or not can be judged; when it is judged that the tool is in the disordered pressing state, the tool can be protected by adopting a preset protection method, it can be guaranteed that the tool is protected in the disordered pressing state, safety is improved, and the tool is protected against damage.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of electrical tool protection, and more particularly to a method, device, computer-readable storage medium, and product for protecting a tool from misuse. Background Art

[0002] Electric tools such as electric drills, air guns, and angle grinders are common in production and life. The most important thing when using electric tools is to ensure safety. When the electric tool switch is switched at a high frequency (that is, the switch is pressed randomly), the machine is frequently turned on and off, and a lot of heat is generated in the circuit. How to ensure the safety of the electric tool is an important issue.

[0003] In the prior art, electric tools generally control the brakes for the field effect transistors of the lower bridge of the driving circuit. At the same time, an NTC (thermistor, collecting the temperature of the MOS tube) is attached near the field effect transistor of the lower bridge, i.e., the MOS, and covered with thermal conductive silicone. When the temperature of the thermistor reaches the protection value (such as 100°C), the machine alarms for protection. Although the circuit can be measured and protected in the prior art, it takes time for the temperature to be transferred between the MOS and the NTC. If the machine is in a random pressing state, the MOS suddenly heats up, and the temperature is not transferred to the NTC in time. Then, when the MOS exceeds the safe temperature range, the temperature collected by the NTC is still very low and cannot be protected in time. This will damage the MOS, affect the life of the machine, and bring safety hazards. Therefore, it is necessary to propose a method that can quickly determine whether the electric tool is in a random pressing state and provide protection to improve safety performance. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a tool mis-pressing protection method, device, computer-readable storage medium and product, which can quickly and effectively determine that the power tool is in a mis-pressing state and provide protection, thereby improving safety performance.

[0005] To solve the above technical problems, an implementation of the present application provides a method for protecting a tool from being pressed randomly, comprising the following steps: obtaining the current working state of the tool; when the working state is a first working state, obtaining a first working parameter of the tool; judging whether the tool is in an abnormal state based on the first working parameter; when the tool is in an abnormal state, protecting the tool using a preset protection method, and the preset protection method comprises: controlling the temperature of a driving module of the tool within a preset temperature range.

[0006] An embodiment of the present application also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned tool random pressing protection method.

[0007] The embodiments of the present application further provide a computer-readable storage medium storing a computer program, which implements the above-mentioned tool random pressing protection method when executed by a processor.

[0008] The embodiments of the present application further provide a computer program product, including computer instructions, which implement the above-mentioned tool random pressing protection method when executed by a processor.

[0009] The implementation method of the present application obtains the current working state of the tool; when the working state is the first working state, obtains the first working parameter of the tool; determines whether the tool is in an abnormal state according to the first working parameter; when the tool is in an abnormal state, uses a preset protection method to protect the tool. The present application determines whether the tool is in an abnormal state under a specific working state of the tool, where the abnormal state is a random pressing state, and can determine whether the tool is in a random pressing state; when it is determined that the tool is in a random pressing state, a preset protection method can also be used to protect the tool, which can ensure that the tool is protected when it is in a random pressing state, improve safety, and protect the tool from damage.

[0010] In addition, when determining that the working state is the first working state, it includes: obtaining a second working parameter of the tool, and when the second working parameter is within a preset parameter range, the working state is the first working state; wherein the second working parameter is the main loop current, and the first working state is no-load or light-load. In this implementation, before determining that the tool is in a random pressing state, the magnitude of the main loop current in the circuit is used to determine whether the tool is in a no-load or light-load state, so that the determination of whether the tool is randomly pressed can be more accurately achieved.

[0011] In addition, when the first working parameter is the temperature difference between the upper and lower bridge field effect tube temperatures, judging whether the tool is in an abnormal state according to the first working parameter includes: obtaining the field effect tube temperatures of the upper and lower bridges of the driving circuit; calculating the temperature difference between the upper and lower bridge field effect tube temperatures; and judging that the tool is in an abnormal state when the temperature difference is greater than a preset temperature difference. By calculating the temperature difference between the upper and lower bridge field effect tube temperatures, the judgment lag caused by temperature transfer can be avoided, and it can be more quickly and accurately judged whether the tool is pressed randomly.

[0012] In addition, when the first working parameter is the temperature rise rate of the lower bridge field effect tube, judging whether the tool is in an abnormal state according to the first working parameter includes: obtaining the field effect tube temperature of the lower bridge of the tool driving circuit; calculating the temperature rise rate of the lower bridge field effect tube; when the temperature rise rate is greater than a preset rate, judging that the tool is in an abnormal state. Similarly, judging whether the tool is pressed randomly by the temperature rise rate can avoid the judgment lag caused by temperature transfer, and can more quickly and accurately judge whether the tool is pressed randomly.

[0013] In addition, when the first working parameter is the frequency of trigger pressing, judging whether the tool is in an abnormal state according to the frequency of trigger pressing includes: obtaining the frequency of tool trigger pressing; when the frequency is greater than a preset frequency, judging that the tool is in an abnormal state. Judging directly by the frequency of trigger pressing makes it easier and more intuitive to obtain judgment data, and the judgment result is more accurate.

[0014] In addition, the tool is protected by controlling the temperature of the field effect tube of the tool within a preset temperature range, including: protecting the tool by lowering the preset temperature protection threshold and / or increasing the preset brake time of the tool. In this implementation, by selecting at least one of the two methods to protect the tool, more random pressing protection strategies are provided, which can make the random pressing protection method applicable to more scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by the pictures in the corresponding drawings, and these exemplary descriptions do not constitute limitations on the embodiments.

[0016] Figure 1 is a flow chart of a tool random pressing protection method according to an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of a tool driving circuit according to an embodiment of the present application;

[0018] Figure 3 is a circuit diagram of a tool driving circuit according to an embodiment of the present application;

[0019] Figure 4 is a thermistor temperature detection circuit diagram according to an embodiment of the present application;

[0020] Figure 5 It is a schematic structural diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, each embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in each embodiment of the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not constitute any limitation, and the various embodiments can be combined with each other and referenced to each other without contradiction.

[0022] In real production scenarios, common power tools such as electric drills, air guns, and angle grinders usually have a random pressing test item. This is because in the random pressing test, the power-on and power-off frequency of the tool circuit is high, so many problems of the machine can be revealed. In addition, in actual work, workers may cause power tools to be in a random pressing state due to improper operation, so random pressing is a common phenomenon.

[0023] The first embodiment of the present application relates to a tool random pressing protection method, which can be applied in the microcontroller unit MCU of the electrician tool. The implementation method of the present application obtains the current working state of the tool; when the working state is the first working state, obtains the first working parameter of the tool; judges whether the tool is in an abnormal state according to the first working parameter; when the tool is in an abnormal state, a preset protection method is used to protect the tool. The present application judges whether the tool is in an abnormal state under a specific working state of the tool, where the abnormal state is a random pressing state, and can judge whether the tool is in a random pressing state; when the tool is judged to be in a random pressing state, a preset protection method can also be used to protect the tool. The preset protection method here can be to protect the tool by controlling the temperature of the tool's driving circuit within a preset temperature range. The above method can ensure that the tool is protected in a random pressing state, improve safety and protect the tool from damage. The following is a specific description of the implementation details of the tool random pressing protection method of the first implementation method of the present application. The following content is only for the convenience of understanding the implementation details provided, and is not necessary for the implementation of this solution.

[0024] In this embodiment, if Figure 1 As shown in step 101, the current working status of the tool is obtained.

[0025] Specifically, the various parameters of the internal circuit of the tool, such as the current, the on / off state of the switch (the switch includes but is not limited to the trigger, key, and button), the temperature of each part, and the impedance can be obtained through the microcontroller unit inside the tool for subsequent judgment. In this embodiment, the current of the main circuit is obtained through the microcontroller unit inside the tool as the current working state of the tool.

[0026] Step 102, when it is determined that the working state is the first working state, the first working parameter of the tool is obtained. Specifically, when it is determined that the working state is the first working state, it includes: obtaining the second working parameter of the tool, when the second working parameter is within the preset parameter range, the working state is the first working state; wherein the second working parameter is the main loop current, and the first working state is no-load or light-load. In this implementation, before determining that the tool is in a random pressing state, the size of the main loop current in the circuit is used to determine whether the tool is in a no-load or light-load state, so that the judgment of whether the tool is randomly pressed can be more accurately realized.

[0027] In this embodiment, the main loop current can be detected by the MCU and compared with the current setting value. If the current main loop current is within ±10% of the current setting value, it can be considered that the current tool is in a no-load or light-load state.

[0028] Step 103: determine whether the tool is in an abnormal state according to the first working parameter. Specifically, the determination method varies according to the first working parameter. In this embodiment, three different determination methods are provided, which are as follows:

[0029] When making a judgment, you must first understand the following:

[0030] The upper and lower parts of the MOS tube are called upper and lower bridges, which are responsible for the passage of current at different times. This design allows current to pass through the upper bridge when needed, charging the capacitor and raising the voltage to the level required by the device through the inductance characteristics. Later, when the energy needs to be released, the current flows out through the lower bridge. This design enables the circuit to effectively manage and control the flow of current, ensuring the stable operation of the device.

[0031] The first judgment method: when the first working parameter is the temperature difference between the upper and lower bridge field effect tube temperatures, judging whether the tool is in an abnormal state according to the first working parameter, including: obtaining the field effect tube temperatures of the upper and lower bridges of the driving circuit; calculating the temperature difference between the upper and lower bridge field effect tube temperatures; when the temperature difference is greater than the preset temperature difference, judging that the tool is in an abnormal state. By calculating the temperature difference between the upper and lower bridge field effect tube temperatures, the judgment lag caused by temperature transfer can be avoided, and it can be more quickly and accurately judged whether the tool is pressed randomly.

[0032] The second judgment method: when the first working parameter is the temperature rise rate of the lower bridge field effect tube, judging whether the tool is in an abnormal state according to the first working parameter includes: obtaining the field effect tube temperature of the lower bridge of the tool circuit; calculating the temperature rise rate of the lower bridge field effect tube; when the temperature rise rate is greater than the preset rate, judging that the tool is in an abnormal state. Similarly, judging whether the tool is pressed randomly by the temperature rise rate can avoid the judgment lag caused by temperature transfer, and can more quickly and accurately judge whether the tool is pressed randomly.

[0033] The driving circuit diagram is as follows: Figure 2 As shown in the figure, Qw1, Qu1, Qv1 are the field effect tubes of the upper bridge, Qw2, Qu2, Qv2 are the field effect tubes of the lower bridge, and the corresponding circuit diagram is as follows Figure 3 As shown, Qw1, Qu1, and Qv1 are field effect transistors of the upper bridge, and Qw2, Qu2, and Qv2 are field effect transistors of the lower bridge.

[0034] In addition, obtaining the temperature of the field effect tube includes: obtaining the temperature of the field effect tube based on a preset thermistor, wherein the thermistor is attached within a preset distance range from the field effect tube and a thermal conductive silicone is provided between the thermistor and the field effect tube. Specifically, the thermistor temperature detection circuit is as follows Figure 4 In the prior art, the commonly used method is to install thermistors only on the lower bridge. In this embodiment, thermistors are installed on both the upper bridge and the lower bridge, so as to simultaneously monitor and compare the temperature difference between the two thermistors on the upper bridge and the lower bridge.

[0035] Generally speaking, in the first judgment method, the temperature difference △T (△T=T1-T2) between the two thermistors (NTC) of the upper and lower bridges will not exceed 10℃. When the MCU detects △T≥20℃, it is considered that the machine is in a random pressing state. In the second judgment method, when the MOS of the lower bridge is pressed randomly, the temperature rises very quickly, and the corresponding NTC temperature rises faster than normal. It takes 1 minute to rise to 45℃ normally, and the slope is k. When the trigger is pressed, when the MCU recognizes that the time for the NTC to rise from the initial temperature to 45℃ is ≤1min, and the slope is k1 (k1>k), it is considered that the machine is in a random pressing state.

[0036] The third judgment method: when the first working parameter is the frequency of trigger pressing, judging whether the tool is in an abnormal state according to the first working parameter, including: obtaining the frequency of the tool trigger pressing; when the frequency is greater than the preset frequency, judging that the tool is in an abnormal state. Judging directly by the frequency of trigger pressing, it is easier and more intuitive to obtain judgment data, and the judgment result is more accurate. The normal frequency of pressing the trigger is in seconds, and pressing once + releasing once for more than 1 second is the normal frequency. When the MCU detects that the VR effective stroke is from 0-a, and then from a-0, and the frequency F>1 second / time, it is considered that the machine is in a random pressing state.

[0037] Step 104, when the tool is in an abnormal state, a preset protection method is used to protect the tool. The preset method can be to protect the tool by controlling the temperature of the tool within a preset temperature range. The preset temperature range here can be set differently according to different tools. For example, when the MOS tube of the tool is a MOS with a junction temperature of 150°C, the temperature of the MOS tube should not exceed 120°C. At this time, the preset temperature range is ≤120°C. Specifically, the preset protection method is used to protect the tool, including: protecting the tool by lowering the preset temperature protection threshold and / or increasing the preset braking time of the tool. In this implementation, by selecting at least one of the two methods to protect the tool, more random pressing protection strategies are provided, so that the random pressing protection method can be applied to more scenarios.

[0038] In one example, when the MCU recognizes that the current tool is in a random pressing state, the following three protection methods can be used to protect against random pressing:

[0039] 1. Lower the preset temperature protection threshold of the tool

[0040] For every 10% increase in the variables (ΔT, F, k) mentioned in the above embodiment, the preset temperature protection threshold of the tool is reduced by 10%.

[0041] That is, when the temperature difference between the upper and lower bridge NTCs increases by 10%, the preset temperature protection threshold of the tool is reduced by 10%, that is, the preset protection threshold of the tool is reduced from the first preset protection threshold of the tool to the second preset protection threshold of the tool, and the second preset protection threshold of the tool is at least 10% lower than the first preset protection threshold of the tool, and the preset temperature protection threshold of the tool is the preset temperature protection voltage threshold. When the temperature of the tool reaches the second preset protection threshold of the tool, the tool is protected to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and to prevent the temperature of the field effect tube from exceeding the safe temperature range;

[0042] Or when the frequency of trigger pressing increases by 10%, the preset temperature protection threshold of the tool is reduced by 10%, that is, the preset protection threshold of the tool is reduced from the first preset protection threshold of the tool to the second preset protection threshold of the tool, and the second preset protection threshold of the tool is at least 10% lower than the first preset protection threshold of the tool, and the preset temperature protection threshold of the tool is the preset temperature protection voltage threshold. When the temperature of the tool reaches the second preset protection threshold of the tool, the tool is protected to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, so as to prevent the temperature of the field effect tube from exceeding the safe temperature range;

[0043] Or when the temperature rise rate of the lower bridge field effect tube increases by 10%, the preset temperature protection threshold of the tool is reduced by 10%, that is, the preset protection threshold of the tool is reduced from the first preset protection threshold of the tool to the second preset protection threshold of the tool, and the second preset protection threshold of the tool is at least 10% lower than the first preset protection threshold of the tool, and the preset temperature protection threshold of the tool is the preset temperature protection voltage threshold. When the temperature of the tool reaches the second preset protection threshold of the tool, the tool is protected to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, so as to prevent the temperature of the field effect tube from exceeding the safe temperature range.

[0044] 2. Increase the preset brake time of the tool

[0045] For every 10% increase in the variables (ΔT, F, k) mentioned in the above embodiment, the preset braking time of the tool increases by 10%.

[0046] That is, when the temperature difference between the two NTCs of the upper and lower bridges increases by 10%, the preset braking time of the tool increases by 10%; that is, the preset braking time of the tool is extended from the first preset braking time to the second preset braking time, and the second preset braking time is at least 10% lower than the first preset braking time. By extending the braking time, the temperature rise rate of the field effect tube is reduced to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range.

[0047] Or when the frequency of trigger pressing increases by 10%, the preset braking time of the tool increases by 10%; that is, the preset braking time of the tool is extended from the first preset braking time to the second preset braking time, and the second preset braking time is at least 10% lower than the first preset braking time. By extending the braking time, the temperature rise rate of the field effect tube is reduced to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range.

[0048] Or when the temperature rise rate of the lower bridge field effect tube increases by 10%, the preset braking time of the tool increases by 10%; that is, the preset braking time of the tool is extended from the first preset braking time to the second preset braking time, and the second preset braking time is at least 10% lower than the first preset braking time. By extending the braking time, the temperature rise rate of the field effect tube is reduced to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range.

[0049] 3. Reduce the tool preset temperature protection threshold and increase the tool preset brake time

[0050] For every 10% increase in the above variables (△T, F, k), the tool preset temperature protection threshold value decreases by 10%, and the tool preset braking time increases by 10%.

[0051] That is, when the temperature difference between the two NTCs of the upper and lower bridges increases by 10%, the preset temperature protection threshold of the tool is reduced by 10%, and the preset braking time of the tool is increased by 10%, that is, the preset protection threshold of the tool is reduced from the first preset protection threshold of the tool to the second preset protection threshold of the tool, and the second preset protection threshold of the tool is at least 10% lower than the first preset protection threshold of the tool, and the preset temperature protection threshold of the tool is the preset temperature protection voltage threshold. When the temperature of the tool reaches the second preset protection threshold of the tool, the tool is protected to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range to prevent the temperature of the field effect tube from exceeding the safe temperature range; that is, the preset braking time of the tool is extended from the first preset braking time to the second preset braking time, and the second preset braking time is at least 10% lower than the first preset braking time. By extending the braking time, the temperature rise rate of the field effect tube is reduced to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range to prevent the temperature of the field effect tube from exceeding the safe temperature range.

[0052] Or when the frequency of trigger pressing increases by 10%, the preset temperature protection threshold of the tool is reduced by 10%, and the preset braking time of the tool is increased by 10%, that is, the preset protection threshold of the tool is reduced from the first preset protection threshold of the tool to the second preset protection threshold of the tool, and the second preset protection threshold of the tool is at least 10% lower than the first preset protection threshold of the tool, and the preset temperature protection threshold of the tool is the preset temperature protection voltage threshold. When the temperature of the tool reaches the second preset protection threshold of the tool, the tool is protected to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range; that is, the preset braking time of the tool is extended from the first preset braking time to the second preset braking time, and the second preset braking time is at least 10% lower than the first preset braking time. By extending the braking time, the temperature rise rate of the field effect tube is reduced to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range.

[0053] Or when the temperature rise rate of the lower bridge field effect tube increases by 10%, the preset temperature protection threshold of the tool is reduced by 10%, and the preset braking time of the tool is increased by 10%, that is, the preset protection threshold of the tool is reduced from the first preset protection threshold of the tool to the second preset protection threshold of the tool, and the second preset protection threshold of the tool is at least 10% lower than the first preset protection threshold of the tool, and the preset temperature protection threshold of the tool is the preset temperature protection voltage threshold. When the temperature of the tool reaches the second preset protection threshold of the tool, the tool is protected to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range; that is, the preset braking time of the tool is extended from the first preset braking time to the second preset braking time, and the second preset braking time is at least 10% lower than the first preset braking time. By extending the braking time, the temperature rise rate of the field effect tube is reduced to ensure that the temperature of the field effect tube of the tool is controlled within the preset temperature range, and the temperature of the field effect tube is prevented from exceeding the safe temperature range.

[0054] In addition, while implementing the protection method, the user can also be reminded through IOT (Internet of Things), prompt sounds, flashing lights, etc. to run the machine at no load for a period of time to dissipate heat.

[0055] The step division of the above methods is only for the purpose of clear description. When implemented, they can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent; adding insignificant modifications to the algorithm or process or introducing insignificant designs without changing the core design of the algorithm and process are all within the scope of protection of this patent.

[0056] Another embodiment of the present application relates to an electronic device, such as Figure 5 As shown, it includes at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the tool mis-pressing protection method as described above.

[0057] Among them, the memory and the processor are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and memories together. The bus can also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor.

[0058] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory can be used to store data used by the processor when performing operations.

[0059] Another embodiment of the present application relates to a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the above method embodiment is implemented.

[0060] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0061] Another embodiment of the present application relates to a computer program product, including computer instructions, which, when executed by a processor, implement the tool random pressing protection method as described above.

[0062] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. A tool random pressing protection method, characterized in that: include: Get the current working status of the tool; When the working state is a first working state, obtaining a first working parameter of the tool; determining whether the tool is in an abnormal state according to the first working parameter; When the tool is in an abnormal state, a preset protection method is used to protect the tool, and the preset protection method includes: controlling the temperature of the driving module of the tool within a preset temperature range.

2. The tool misuse protection method according to claim 1, characterized in that: The determining that the working state is the first working state includes: Acquiring a second working parameter of the tool, when the second working parameter is within a preset parameter range, the working state is the first working state; Among them, the second working parameter is the main loop current, and the first working state is no-load or light-load.

3. The tool misuse protection method according to claim 1, characterized in that: When the first operating parameter is the temperature difference between the upper bridge and the lower bridge field effect tube, judging whether the tool is in an abnormal state according to the first operating parameter includes: Acquiring the field effect tube temperatures of the upper bridge and the lower bridge of the tool driving circuit; Calculating the temperature difference between the upper bridge and lower bridge field effect tube temperatures; When the temperature difference is greater than a preset temperature difference, it is determined that the tool is in an abnormal state.

4. The tool misuse protection method according to claim 1, characterized in that: When the first operating parameter is the heating rate of the lower bridge field effect tube temperature, judging whether the tool is in an abnormal state according to the first operating parameter includes: Acquiring the temperature of the field effect tube of the lower bridge of the tool driving circuit; Calculating the heating rate of the lower bridge field effect tube; When the heating rate is greater than a preset rate, it is determined that the tool is in an abnormal state.

5. The tool misuse protection method according to any one of claims 3-4, characterized in that: Obtaining the temperature of the field effect tube includes: The temperature of the field effect tube is obtained based on a preset thermistor, wherein the thermistor is attached within a preset distance range from the field effect tube and thermal conductive silicone is provided between the thermistor and the field effect tube.

6. The tool misuse protection method according to claim 1, characterized in that: When the first working parameter is the frequency of trigger pressing, judging whether the tool is in an abnormal state according to the first working parameter includes: Obtaining the frequency at which the tool trigger is pressed; When the frequency is greater than a preset frequency, it is determined that the tool is in an abnormal state.

7. The tool misuse protection method according to claim 1, characterized in that: The step of controlling the temperature of the driving circuit of the tool within a preset temperature range comprises: The preset temperature protection threshold of the tool is lowered and / or the preset braking time of the tool is increased.

8. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the tool abuse protection method as described in any one of claims 1 to 7.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the tool misuse protection method described in any one of claims 1 to 7 is implemented.

10. A computer program product, characterized in that It comprises computer instructions, which, when executed by a processor, implement the tool misuse protection method as described in any one of claims 1 to 7.

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