A brushless DC motor Hall sensor installation detection method, system, storage medium and intelligent terminal

Abstract

The present application relates to a brushless DC motor Hall sensor installation detection method, system, storage medium, and intelligent terminal, and relates to the field of motor detection technology. The method includes obtaining trigger status information of a standard Hall plate; controlling the standard Hall plate to be energized when the state corresponding to the trigger status information is consistent with the conduction state, and after energization, obtaining the standard voltage value of the standard motor connected to the standard Hall plate and the test voltage value of the test motor; calculating the difference between the standard voltage value and the test voltage value to determine the difference voltage information; determining whether the voltage value corresponding to the difference voltage information is less than a deviation value; if the voltage value corresponding to the difference voltage information is less than the deviation value, outputting a correct installation signal; if the voltage value corresponding to the difference voltage information is not less than the deviation value, outputting an installation error signal. The present application has the effect of relatively accurately detecting the installation status of the Hall sensor in the motor.

Description

Technical Field

[0001] The present application relates to the field of motor detection technology, and in particular to a brushless DC motor Hall sensor installation detection method, system, storage medium and intelligent terminal. Background Art

[0002] DC speed control systems offer advantages such as excellent control performance, a wide speed regulation range, high starting torque, and smooth operation. Permanent magnet brushless DC motor speed control systems are the most widely used. Brushless DC motors operate by detecting rotor position signals to change the current phase sequence in the stator winding coils. This interaction with the permanent magnets in the rotor generates electromagnetic torque, thereby changing the rotor's motion and achieving speed regulation. Currently, Hall effect sensors are commonly used to detect the rotor position of brushless DC motors. Linear Hall effect sensors, as a type of Hall effect sensor, are low-cost and compact. Furthermore, the Hall effect voltage output by linear Hall effect sensors in their linear region is proportional to the magnetic field strength, enabling them to obtain more accurate rotor position control signals. Consequently, they can replace switched Hall effect sensors for high-precision control tasks such as motor vector control and position control.

[0003] In related technologies, in order to ensure the normal use of the motor, the installation status of the Hall sensor needs to be checked after the motor is installed. The existing method generally requires staff to check the installation position of the installed Hall sensor based on their own experience to reduce the occurrence of the motor not being able to be used normally due to incorrect installation of the Hall sensor.

[0004] Regarding the above-mentioned related technologies, the inventor believes that there are cases where detection errors or installation errors are not detected in time through experience detection by staff, resulting in poor detection effect of the installation status of the Hall sensor. Therefore, it is urgent to design a method that can more accurately detect the installation status of the Hall sensor. Summary of the Invention

[0005] In order to more accurately detect the installation status of the Hall sensor in the motor, the present application provides a brushless DC motor Hall sensor installation detection method, system, storage medium and intelligent terminal.

[0006] In a first aspect, the present application provides a method for installing and detecting a Hall effect sensor of a brushless DC motor, which adopts the following technical solution:

[0007] A method for installing and detecting a Hall sensor of a brushless DC motor, comprising:

[0008] Get the trigger status information of the preset standard Hall plate;

[0009] When the state corresponding to the trigger state information is consistent with the preset conduction state, the standard Hall plate is controlled to be energized, and after energization, a standard voltage value of a standard motor connected to the standard Hall plate and a test voltage value of a test motor are obtained, wherein a rotating shaft of the standard motor is coaxially connected to a rotating shaft of the test motor;

[0010] Calculating the difference between the standard voltage value and the test voltage value to determine differential voltage information;

[0011] Determine whether the voltage value corresponding to the differential voltage information is less than a preset deviation value;

[0012] If the voltage value corresponding to the differential voltage information is less than the deviation value, a correct installation signal is output;

[0013] If the voltage value corresponding to the differential voltage information is not less than the deviation value, an installation error signal is output.

[0014] By adopting the above technical solution, the trigger status information of the standard Hall plate is first obtained to determine whether the standard Hall plate needs to be energized. When the standard Hall plate is energized, the standard motor in the standard Hall plate circuit starts, and at the same time, the standard motor can drag the test motor to start, so that both the standard motor and the test motor can output corresponding Hall voltage values ​​in the standard Hall plate. At this time, the Hall voltages of the two can be compared. If the difference between the Hall voltage of the test motor and the Hall voltage of the standard motor is within the set allowable deviation value, it means that the test motor is operating normally, that is, the Hall sensor in the test motor is installed correctly, so that the staff can more accurately determine the installation status of the Hall sensor in the motor.

[0015] Optionally, after the standard Hall plate is powered on, the brushless DC motor Hall sensor installation and detection method further includes:

[0016] Control the countdown to start at a preset fixed time, and obtain the real-time standard value information of the standard motor and the real-time test value information of the test motor in real time;

[0017] Determining real-time maximum value information among the real-time standard value information and the real-time test value information;

[0018] Determine whether the value corresponding to the real-time maximum value information is greater than the preset upper limit;

[0019] If the value corresponding to the real-time maximum value information is greater than the upper limit value, the standard Hall plate is controlled to be powered off and the real-time standard value information and the real-time test value information are stored in a preset storage memory;

[0020] If the value corresponding to the real-time maximum numerical information is not greater than the upper limit value, the standard Hall plate is kept powered on until the fixed time timing returns to zero, and after the fixed time, the average calculation is performed based on the real-time standard numerical information to determine the standard voltage value, and the average calculation is performed based on the real-time test numerical information to determine the test voltage value.

[0021] By adopting the above technical solution, data on the Hall voltage of the test motor over a period of time can be collected, so that the subsequent judgment of the Hall voltage condition of the test motor can be more accurate; at the same time, when there is an abnormal Hall voltage during the detection process, the data without abnormalities can be stored to facilitate subsequent analysis of the condition of the test motor.

[0022] Optionally, after the standard Hall plate is powered on, the brushless DC motor Hall sensor installation and detection method further includes:

[0023] Get the internal temperature information of the standard motor;

[0024] Determine whether the temperature value corresponding to the internal temperature information is greater than the preset danger value;

[0025] If the temperature value corresponding to the internal temperature information is greater than the dangerous value, a high temperature signal is output and the standard Hall plate is controlled to be powered off, and the real-time standard value information and the real-time test value information are stored in the storage library;

[0026] If the temperature value corresponding to the internal temperature information is not greater than the dangerous value, the standard Hall plate is kept powered on and it is determined whether the temperature value corresponding to the internal temperature information is greater than the preset impact value;

[0027] If the temperature value corresponding to the internal temperature information is not greater than the impact value, the detection operation is maintained normally;

[0028] If the temperature value corresponding to the internal temperature information is greater than the impact value, a matching analysis is performed based on the internal temperature information and the correction value information stored in the preset correction database to determine the correction value information corresponding to the internal temperature information;

[0029] The real-time standard value information is corrected and updated according to the value corresponding to the corrected value information.

[0030] By adopting the above technical solution, the temperature conditions inside the standard motor can be determined. When the temperature inside the standard motor is high, the temperature will affect the movement of carriers and the effect of phonon scattering, so that the Hall voltage will change compared to the normal temperature. At this time, the obtained Hall voltage can be corrected to determine a more accurate Hall voltage value.

[0031] Optionally, when the temperature value corresponding to the internal temperature information is greater than the impact value, the brushless DC motor Hall sensor installation detection method further includes:

[0032] The temperature value corresponding to the current internal temperature information is defined as the original temperature, and the temperature value corresponding to the current internal temperature information is defined as the current temperature after a preset unit time period;

[0033] calculating a difference between the existing temperature and the original temperature to determine differential temperature information;

[0034] Performing a matching analysis based on the differential temperature information and the heat dissipation gear information stored in the preset gear database to determine the heat dissipation gear information corresponding to the differential temperature information;

[0035] The preset heat dissipation device is controlled to operate at the gear corresponding to the heat dissipation gear information, and the current temperature is updated to the original temperature. The current temperature is re-determined after a unit time and the heat dissipation gear information is updated.

[0036] By adopting the above technical solution, the temperature change can be determined to select the appropriate heat dissipation gear, so that the motor can dissipate heat better while avoiding the situation where the gear is too large and the waste of electricity is avoided.

[0037] Optionally, after the high temperature signal is output, the brushless DC motor Hall sensor installation detection method further includes:

[0038] A detection interval with a width equal to a preset detection duration is defined on a preset positive sequence time axis, and the back end of the detection interval is controlled to coincide with the time when the high temperature signal is output;

[0039] In the detection interval, the temperature corresponding to the first internal temperature information is defined as the initial temperature, and the interval time between the initial temperature and the high temperature signal output is obtained;

[0040] Calculate the difference between the temperature corresponding to the current internal temperature information and the initial temperature to determine the changed temperature information;

[0041] Calculate the change rate information based on the change temperature information and the interval time information;

[0042] Determine whether the value corresponding to the change rate information is greater than a preset fault value;

[0043] If the value corresponding to the rate of change information is greater than the fault value, a heat dissipation fault signal is output;

[0044] If the value corresponding to the rate of change information is not greater than the fault value, a long-term use signal is output.

[0045] By adopting the above technical solution, the temperature change rate can be determined to judge whether the heat dissipation device is damaged, so that the staff can quickly determine the damage location for subsequent maintenance.

[0046] Optionally, when the value corresponding to the rate of change information is not greater than the fault value, the brushless DC motor Hall sensor installation detection method further includes:

[0047] Get power-on start time information and current time information;

[0048] Establishing a determination interval based on current time information and power-on start time information, and determining power-on duration information and interval duration information in the determination interval;

[0049] Calculate the power-on ratio based on the interval duration information and the power-on duration information;

[0050] Determine whether the power-on ratio value is greater than a preset reference value.

[0051] If the power-on ratio value is greater than the reference value, a long-term use signal is output;

[0052] If the power-on ratio value is not greater than the reference value, an abnormal signal is output.

[0053] By adopting the above technical solution, the usage of the standard motor over a period of time can be determined to determine whether the temperature of the standard motor is too high due to long-term use without timely cooling.

[0054] In a second aspect, the present application provides a brushless DC motor Hall sensor installation and detection system, which adopts the following technical solution:

[0055] A brushless DC motor Hall sensor installation and detection system, comprising:

[0056] An acquisition module is used to obtain trigger status information of a preset standard Hall plate;

[0057] A processing module, connected to the acquisition module and the judgment module, for storing and processing information;

[0058] The judgment module is connected with the acquisition module and the processing module and is used for judging the information;

[0059] When the judgment module determines that the state corresponding to the trigger state information is consistent with the preset conduction state, the processing module controls the standard Hall plate to be energized, and after the power is energized, the acquisition module acquires a standard voltage value of a standard motor connected to the standard Hall plate and a test voltage value of a test motor, wherein a rotating shaft of the standard motor is coaxially connected to a rotating shaft of the test motor;

[0060] The processing module calculates the difference between the standard voltage value and the test voltage value to determine the difference voltage information;

[0061] The judgment module judges whether the voltage value corresponding to the difference voltage information is less than a preset deviation value;

[0062] If the judgment module determines that the voltage value corresponding to the differential voltage information is less than the deviation value, the processing module outputs a correct installation signal;

[0063] If the judging module determines that the voltage value corresponding to the differential voltage information is not less than the deviation value, the processing module outputs an installation error signal.

[0064] By adopting the above technical solution, the acquisition module first obtains the trigger status information of the standard Hall plate so that the judgment module determines whether the standard Hall plate needs to be energized. When the judgment module determines that the standard Hall plate is energized, the processing module controls the standard motor in the standard Hall plate circuit to start, and at the same time, the standard motor can drag the test motor to start, so that both the standard motor and the test motor can output corresponding Hall voltage values ​​in the standard Hall plate. At this time, the processing module can compare the Hall voltages of the two. If the difference between the Hall voltage of the test motor and the Hall voltage of the standard motor is within the set allowable deviation value, it means that the test motor is operating normally, that is, the Hall sensor in the test motor is installed correctly, so that the staff can more accurately determine the installation status of the Hall sensor in the motor.

[0065] In a third aspect, the present application provides a smart terminal that adopts the following technical solution:

[0066] An intelligent terminal comprises a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute any one of the above-mentioned brushless DC motor Hall sensor installation detection methods.

[0067] By adopting the above technical solution and using the smart terminal, the trigger status information of the standard Hall plate is first obtained to determine whether the standard Hall plate needs to be energized. When the standard Hall plate is energized, the standard motor in the standard Hall plate circuit starts, and at the same time, the standard motor can drag the test motor to start, so that both the standard motor and the test motor can output corresponding Hall voltage values ​​in the standard Hall plate. At this time, the Hall voltages of the two can be compared. If the difference between the Hall voltage of the test motor and the Hall voltage of the standard motor is within the set allowable deviation value, it indicates that the test motor is operating normally, that is, the Hall sensor in the test motor is installed correctly, so that the staff can more accurately determine the installation status of the Hall sensor in the motor.

[0068] In a fourth aspect, the present application provides a computer storage medium capable of storing a corresponding program, which has the characteristics of relatively accurately detecting the installation status of the Hall effect sensor in the motor, and adopts the following technical solution:

[0069] A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any one of the above-mentioned brushless DC motor Hall sensor installation and detection methods.

[0070] By adopting the above technical solution, a computer program for the installation and detection method of the Hall sensor of a brushless DC motor is stored in the storage medium. The trigger status information of the standard Hall plate is first obtained to determine whether the standard Hall plate needs to be energized. When the standard Hall plate is energized, the standard motor in the standard Hall plate circuit starts, and at the same time, the standard motor can drag the test motor to start, so that both the standard motor and the test motor can output corresponding Hall voltage values ​​in the standard Hall plate. At this time, the Hall voltages of the two can be compared. If the difference between the Hall voltage of the test motor and the Hall voltage of the standard motor is within the set allowable deviation value, it indicates that the test motor is operating normally, that is, the Hall sensor in the test motor is installed correctly, so that the staff can more accurately determine the installation status of the Hall sensor in the motor.

[0071] In summary, this application includes at least one of the following beneficial technical effects:

[0072] 1. The motor to be tested can be tested by linear Hall method, so that the installation status of the Hall sensor installed in the motor can be determined more accurately;

[0073] 2. The data during power failure can be effectively stored to facilitate subsequent analysis of the motor condition based on the corresponding data;

[0074] 3. The motor temperature can be detected and judged to reduce the occurrence of inaccurate linear Hall judgment caused by excessive motor temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 It is a flow chart of the installation and detection method of the Hall sensor of the brushless DC motor.

[0076] Figure 2 This is a schematic diagram of the connection and installation of the detection equipment.

[0077] Figure 3 This is a flow chart of the Hall voltage acquisition method.

[0078] Figure 4 This is a flow chart of the method for determining the internal temperature conditions of a standard motor.

[0079] Figure 5 The present invention is a flow chart of a method for determining a heat dissipation level of a heat dissipation device.

[0080] Figure 6 is a flow chart of a method for determining the rate of temperature change.

[0081] Figure 7 It is a flow chart of the method for determining the power-on operating condition of a standard motor.

[0082] Figure 8This is a module flow chart of the brushless DC motor Hall sensor installation and detection method. DETAILED DESCRIPTION

[0083] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-8 It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0084] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0085] An embodiment of the present application discloses a method for installing and detecting a Hall sensor of a brushless DC motor. A standard Hall working plate and a standard motor can be used to detect a test motor. The Hall voltage values ​​of the two motors are analyzed to determine whether a large deviation occurs. When the Hall voltage deviation is large, it indicates that the Hall sensor in the test motor is installed incorrectly, thereby achieving more accurate determination of the installation status of the Hall sensor in the motor.

[0086] Reference Figure 1 The method flow of the brushless DC motor Hall sensor installation and detection method includes the following steps:

[0087] Step S100: Acquire trigger status information of a preset standard Hall plate.

[0088] The standard Hall plate is a linear Hall tooling detection board with all components installed correctly and with signal transmission and communication functions. The state corresponding to the trigger status information is the driving state of the standard Hall plate, that is, whether the staff needs the standard Hall plate to operate; among them, the standard Hall plate can be connected to an external computer to receive and transmit corresponding signals. At the same time, the standard Hall plate input status can be detected during the installation of the standard Hall plate to the corresponding circuit to reduce the occurrence of inaccurate subsequent detection due to inaccurate installation of the standard Hall plate.

[0089] Step S101: When the state corresponding to the trigger state information is consistent with the preset conduction state, the standard Hall plate is controlled to be powered on, and after power-on, the standard voltage value of the standard motor connected to the standard Hall plate and the test voltage value of the test motor are obtained, wherein the rotating shaft of the standard motor is coaxially connected to the rotating shaft of the test motor.

[0090] The conduction state is the state when the standard Hall plate needs to operate. When the state corresponding to the trigger state information is consistent with the conduction state, it means that the standard Hall plate needs to operate. At this time, the standard Hall plate is controlled to be energized. The standard motor is connected to the standard Hall plate. The internal Hall sensor of the motor is correctly installed and there is no abnormality. The rotating shafts of the test motor and the standard motor are coaxially connected. Figure 2The test motor and the standard motor can be connected through a coupling to enable the standard motor to drag the test motor to rotate. At the same time, the Hall voltage output ends of the test motor and the standard motor are connected to the standard Hall plate, where the standard motor and the test motor are both brushless DC motors; the standard voltage value is the Hall voltage value on the standard motor, and the test voltage value is the Hall voltage value on the test motor.

[0091] Step S102: Calculate the difference between the standard voltage value and the test voltage value to determine differential voltage information.

[0092] The voltage value corresponding to the differential voltage information is the difference between the test voltage value and the standard voltage value, which is determined by subtracting the standard voltage value from the test voltage value and evaluating the absolute value.

[0093] Step S103: determining whether the voltage value corresponding to the difference voltage information is smaller than a preset deviation value.

[0094] The deviation value is the minimum Hall difference value set by the staff to determine that the Hall sensor on the test motor is installed incorrectly. This value can be entered by the staff through an external computer according to actual needs. The purpose of judgment is to know whether the Hall voltage value of the current test motor is normal.

[0095] Step S1031: If the voltage value corresponding to the difference voltage information is smaller than the deviation value, a correct installation signal is output.

[0096] When the voltage value corresponding to the differential voltage information is less than the deviation value, it means that the difference between the Hall voltage value of the current test motor and the Hall voltage value of the standard motor is not much, that is, the Hall voltage value of the current test motor is within a reasonable range, that is, the test motor is normal, which means that the Hall sensor installed inside the test motor is correct. At this time, a correct installation signal is output to identify the situation so that the staff can be aware of the situation. The correct installation signal can be transmitted to an external computer for observation by the staff.

[0097] Step S1032: If the voltage value corresponding to the difference voltage information is not less than the deviation value, an installation error signal is output.

[0098] When the voltage value corresponding to the differential voltage information is not less than the deviation value, it means that the Hall voltage value deviation of the current test motor is too large, and the Hall sensor is not installed correctly. At this time, an installation error signal is output for identification so that the staff can be informed of the situation in time for processing.

[0099] Reference Figure 3 After the standard Hall plate is powered on, the brushless DC motor Hall sensor installation and detection method also includes:

[0100] Step S200: controlling a preset fixed time to start countdown, and obtaining real-time standard value information of the standard motor and real-time test value information of the test motor in real time.

[0101] The fixed duration is the duration set by the staff for testing the test motor. The specific value can be input by the staff through an external computer. The value corresponding to the real-time standard value information is the Hall voltage value obtained in real time for the standard motor. The value corresponding to the real-time test value information is the Hall voltage value obtained in real time for the test motor. The acquisition frequency of the two is determined by the number of commutations of the switch Hall signal in one signal cycle, that is, six times.

[0102] Step S201 : determining real-time maximum value information from the real-time standard value information and the real-time test value information.

[0103] The value corresponding to the maximum value information is the larger value between the value corresponding to the real-time standard value information and the value corresponding to the real-time test value information at the same time point.

[0104] Step S202: Determine whether the value corresponding to the real-time maximum value information is greater than a preset upper limit.

[0105] The upper limit value is the maximum Hall voltage value allowed for normal operation of each device during the Hall voltage calculation process. The purpose of the judgment is to know whether the current Hall voltage is normal, so as to judge whether the standard motor or test motor is normal.

[0106] Step S2021: If the value corresponding to the real-time maximum value information is greater than the upper limit value, the standard Hall plate is controlled to be powered off and the real-time standard value information and the real-time test value information are stored in a preset storage memory.

[0107] When the value corresponding to the real-time maximum numerical information is greater than the upper limit value, it means that the current Hall voltage value is large, and there is an abnormal operation of the standard motor or the test motor. At this time, the standard Hall plate is controlled to be powered off to stop the standard motor from operating, so that the operation stability is higher. At the same time, the acquired data can be stored in the corresponding storage library to facilitate subsequent staff to call and analyze the data. The method of establishing the storage library is a conventional technical means of those skilled in the art and will not be elaborated on.

[0108] Step S2022: If the value corresponding to the real-time maximum numerical information is not greater than the upper limit value, the standard Hall plate is kept powered on until the fixed time timing returns to zero, and after the fixed time, the average calculation is performed based on the real-time standard numerical information to determine the standard voltage value, and the average calculation is performed based on the real-time test numerical information to determine the test voltage value.

[0109] When the value corresponding to the real-time maximum numerical information is not greater than the upper limit value, it means that both the standard motor and the test motor are in normal operation. At this time, the standard Hall plate can be kept powered on until the fixed timer returns to zero. The standard voltage value is determined by averaging the values ​​corresponding to each real-time standard numerical information, and the test voltage value is determined by averaging the values ​​corresponding to each real-time test numerical information. This makes the determined standard voltage value and test voltage value more accurate, reducing the occurrence of large overall errors due to inaccurate data.

[0110] Reference Figure 4 After the standard Hall plate is powered on, the brushless DC motor Hall sensor installation and detection method also includes:

[0111] Step S300: Acquire internal temperature information of a standard motor.

[0112] The temperature value corresponding to the internal temperature information is the temperature inside the standard motor, which can be determined by installing a temperature sensor at the installation position of the Hall sensor inside the standard motor.

[0113] Step S301: Determine whether the temperature value corresponding to the internal temperature information is greater than a preset danger value.

[0114] The danger value is the temperature inside the standard motor set by the staff that is obviously not the minimum temperature value when the motor is in normal use. The purpose of the judgment is to know whether the standard motor is in normal operation.

[0115] Step S3011: If the temperature value corresponding to the internal temperature information is greater than the dangerous value, a high temperature signal is output and the standard Hall plate is controlled to be powered off, and each real-time standard value information and real-time test value information is stored in a storage library.

[0116] When the temperature value corresponding to the internal temperature information is greater than the dangerous value, it means that the internal temperature of the motor is too high and is not the temperature under normal operation of a standard motor. At this time, a high temperature signal is output to identify and record the situation, and the standard Hall plate is controlled to be powered off to reduce the possibility of detection accidents caused by motor abnormalities. At the same time, the previously acquired data is stored for subsequent analysis by the staff.

[0117] Step S3012: If the temperature value corresponding to the internal temperature information is not greater than the dangerous value, the standard Hall plate is kept powered on and it is determined whether the temperature value corresponding to the internal temperature information is greater than a preset impact value.

[0118] When the temperature value corresponding to the internal temperature information is not greater than the dangerous value, it means that the internal temperature of the standard motor is normal, and the standard motor is in normal operation at this time; the impact value is the minimum temperature value set by the staff at which the internal temperature of the motor will have a certain impact on the Hall voltage value. The purpose of the judgment is to know whether the internal temperature of the standard motor will affect the Hall voltage value generated by the standard motor, so as to facilitate subsequent analysis.

[0119] Step S30121: If the temperature value corresponding to the internal temperature information is not greater than the impact value, then the detection operation is maintained normally.

[0120] When the temperature value corresponding to the internal temperature information is not greater than the impact value, it means that the temperature inside the standard motor will not affect the generated Hall voltage value, and normal detection operations can be maintained.

[0121] Step S30122: If the temperature value corresponding to the internal temperature information is greater than the impact value, a matching analysis is performed based on the internal temperature information and the correction value information stored in the preset correction database to determine the correction value information corresponding to the internal temperature information.

[0122] When the temperature value corresponding to the internal temperature information is greater than the impact value, it means that the temperature inside the motor is high at this time, which is easy to affect the generated Hall voltage value. At this time, further processing is required for this situation; the value corresponding to the correction value information is the deviation value caused by the Hall voltage of the motor at the temperature corresponding to the internal temperature information compared to the Hall voltage at normal temperature. The correspondence between the two is determined by the staff based on experiments, and a correction database is established based on the correspondence between the two. The method of establishing the database is a conventional technical means of those skilled in the art and will not be elaborated on.

[0123] Step S302: Correct and update the real-time standard value information according to the value corresponding to the corrected value information.

[0124] The real-time standard numerical information is corrected and updated according to the numerical value corresponding to the corrected numerical information, so that the obtained real-time standard numerical information is not easily affected by temperature, thereby reducing the occurrence of errors in subsequent Hall difference calculations.

[0125] Reference Figure 5 When the temperature value corresponding to the internal temperature information is greater than the impact value, the brushless DC motor Hall sensor installation detection method further includes:

[0126] Step S400: defining the temperature value corresponding to the current internal temperature information as the original temperature, and defining the temperature value corresponding to the current internal temperature information as the current temperature after a preset unit time.

[0127] When the temperature value corresponding to the internal temperature information is greater than the impact value, it means that the internal temperature of the motor is high, and it needs to be cooled and dissipated. The temperature value corresponding to the current internal temperature information is defined as the original temperature for identification, so as to determine the temperature value when it is higher than the impact value. The unit time is the value set by the staff to monitor the temperature. The temperature value corresponding to the current internal temperature information after the unit time is defined as the existing temperature for identification, so as to know the specific temperature situation inside the motor after the unit time, so as to achieve orderly distinction of different temperature values.

[0128] Step S401: Calculate the difference between the current temperature and the original temperature to determine differential temperature information.

[0129] The temperature corresponding to the differential temperature information is the temperature change inside the standard motor per unit time, and is calculated by subtracting the original temperature from the current temperature.

[0130] Step S402: performing a matching analysis on the heat dissipation gear information and the differential temperature information stored in the preset gear database to determine the heat dissipation gear information corresponding to the differential temperature information.

[0131] The gear corresponding to the heat dissipation gear information is the operating gear of the corresponding heat dissipation device in the standard motor. Different differential temperature information indicates that the heat dissipation conditions of the motor are different. At this time, different heat dissipation gear information needs to be adapted. The relationship between the differential temperature information and the heat dissipation gear information is determined by the staff based on experiments, and a gear database is established based on the corresponding relationship. The method of establishing the database is a conventional technical means of those skilled in the art and will not be elaborated on.

[0132] Step S403: controlling the preset heat dissipation device to operate at the gear corresponding to the heat dissipation gear information, and updating the current temperature to the original temperature, and re-determining the current temperature and updating the heat dissipation gear information after a unit time.

[0133] The heat dissipation device is controlled to operate at the gear corresponding to the heat dissipation gear information so that the standard motor has a more appropriate heat dissipation function, while the heat dissipation gear will not be too large to cause waste of electric energy. At the same time, the existing temperature and the original temperature are continuously updated to realize real-time monitoring of the internal temperature of the standard motor, and the appropriate heat dissipation gear information is continuously determined for use so that the standard motor can dissipate heat better.

[0134] Reference Figure 6 After the high temperature signal is output, the brushless DC motor Hall sensor installation and detection method also includes:

[0135] Step S500: defining a detection interval with a width of a preset detection time length on a preset positive time axis, and controlling the rear end of the detection interval to coincide with the time when the high temperature signal is output.

[0136] The positive sequence time axis is a coordinate value composed of various time points. The detection time is the time set by the staff for temperature detection inside the motor. The detection time is less than the fixed time. The specific value is set by the staff. The detection interval is the interval for obtaining data at different time points. The back end of the detection interval is controlled to coincide with the time when the high temperature signal is output to achieve the acquisition of standard motor data before the high temperature signal is output, so as to facilitate subsequent analysis.

[0137] Step S501 : defining the temperature corresponding to the first internal temperature information in the detection interval as the initial temperature, and obtaining the interval time information between the initial temperature and the output of the high temperature signal.

[0138] The temperature corresponding to the first internal temperature information in the detection interval is the first internal temperature information collected in the detection interval, that is, the first temperature information in the detection interval after the standard motor is powered on. This temperature is defined as the initial temperature for identification, so as to facilitate the distinction between different temperatures; the duration corresponding to the interval duration information is the time interval value between the duration when the initial temperature appears and the duration when the high temperature signal is output.

[0139] Step S502: performing a difference calculation based on the temperature corresponding to the current internal temperature information and the initial temperature to determine the changed temperature information.

[0140] The temperature value corresponding to the changed temperature information is the temperature change value inside the standard motor during the time period corresponding to the interval time period information, and is determined by subtracting the initial temperature from the temperature corresponding to the current internal temperature information.

[0141] Step S503: performing calculations based on the temperature change information and the interval duration information to determine the change rate information.

[0142] The value corresponding to the change rate information is the change speed value of the internal temperature of the standard motor, which is determined by dividing the temperature value corresponding to the change temperature information by the duration value corresponding to the interval duration information.

[0143] Step S504: Determine whether the value corresponding to the rate of change information is greater than a preset fault value.

[0144] The fault value is the minimum temperature change rate value set by the staff when a fault occurs in the internal heat dissipation system of the standard motor. The purpose of the judgment is to know whether the heat dissipation system is damaged.

[0145] Step S5041: If the value corresponding to the rate of change information is greater than the fault value, a heat dissipation fault signal is output.

[0146] When the value corresponding to the rate of change information is greater than the fault value, it indicates that there is a problem with the heat dissipation system inside the standard motor. At this time, a heat dissipation fault signal is output for identification so that the staff can know the error in time to facilitate subsequent maintenance.

[0147] Step S5042: If the value corresponding to the rate of change information is not greater than the fault value, a long-term use signal is output.

[0148] When the value corresponding to the rate of change information is not greater than the fault value, it indicates that there is no problem with the cooling system. In this case, the standard motor may have been used for testing for a long time, resulting in a high internal temperature. At this time, a long-term use signal is output to identify the situation so that the staff can be informed of the situation in time and handle it.

[0149] Reference Figure 7 When the value corresponding to the rate of change information is not greater than the fault value, the brushless DC motor Hall sensor installation detection method further includes:

[0150] Step S600: Acquire power-on start time information and current time information.

[0151] The time corresponding to the power-on start time information is the first power-on time of the standard motor within a certain time period. If the interval between two power-ons is a certain length, the subsequent power-on is deemed to be the first power-on, which is the current power-on start time information. The time corresponding to the current time information is the time when it is detected that the value corresponding to the change rate information is not greater than the fault value.

[0152] Step S601 : establishing a determination interval according to current time information and power-on start time information, and determining power-on duration information and interval duration information in the determination interval.

[0153] The judgment interval is the time interval between the time corresponding to the power-on start time information and the time corresponding to the current time information on the positive time axis. The time corresponding to the interval duration information is the overall length value of the interval. The time corresponding to the power-on duration information is the overall time when the standard motor is powered on in the judgment interval, which can be determined by monitoring the operating conditions of the standard motor.

[0154] Step S602: Calculate the power-on ratio information based on the interval duration information and the power-on duration information.

[0155] The value corresponding to the power-on ratio information is the proportion of the power-on time of the standard motor since it was used within a certain period of time, and is determined by dividing the time corresponding to the power-on duration information by the time corresponding to the interval duration information.

[0156] Step S603: determining whether the power-on ratio value corresponding to the power-on ratio information is greater than a preset reference value.

[0157] The benchmark value is the minimum power-on ratio set by the staff when the standard motor has been used for a long time without timely heat dissipation. The purpose of the judgment is to know whether the current high temperature situation is caused by the long-term use of the standard motor without timely heat dissipation.

[0158] Step S6031: If the power-on ratio value corresponding to the power-on ratio information is greater than the reference value, a long-term usage signal is output.

[0159] When the proportion value corresponding to the power-on proportion information is greater than the reference value, it means that the standard motor has been used for a long time. At this time, a long-use signal is output to explain the situation so that the staff can know the specific situation.

[0160] Step S6032: If the power-on ratio value corresponding to the power-on ratio information is not greater than the reference value, an abnormal signal is output.

[0161] When the proportion value corresponding to the power-on proportion information is not greater than the reference value, it means that the standard motor has not been used for a long time. At this time, there is no situation where the standard motor has not been cooled in time due to long-term use. Therefore, an abnormal signal is output to inform the staff of the situation so that the staff can determine the specific abnormal situation.

[0162] Reference Figure 8 Based on the same inventive concept, an embodiment of the present invention provides a brushless DC motor Hall sensor installation and detection system, comprising:

[0163] An acquisition module is used to obtain trigger status information of a preset standard Hall plate;

[0164] A processing module, connected to the acquisition module and the judgment module, for storing and processing information;

[0165] The judgment module is connected with the acquisition module and the processing module and is used for judging the information;

[0166] When the judgment module determines that the state corresponding to the trigger state information is consistent with the preset conduction state, the processing module controls the standard Hall plate to be energized, and after the power is energized, the acquisition module acquires a standard voltage value of a standard motor connected to the standard Hall plate and a test voltage value of a test motor, wherein a rotating shaft of the standard motor is coaxially connected to a rotating shaft of the test motor;

[0167] The processing module calculates the difference between the standard voltage value and the test voltage value to determine the difference voltage information;

[0168] The judging module judges whether the voltage value corresponding to the difference voltage information is less than a preset deviation value;

[0169] If the judgment module determines that the voltage value corresponding to the differential voltage information is less than the deviation value, the processing module outputs a correct installation signal;

[0170] If the judgment module determines that the voltage value corresponding to the differential voltage information is not less than the deviation value, the processing module outputs an installation error signal;

[0171] The voltage acquisition and solution module is used to obtain the Hall voltage values ​​of the standard motor and the test motor over a period of time to facilitate the determination of the final deviation;

[0172] The temperature condition determination module is used to determine the temperature condition inside the standard motor to reduce the occurrence of inaccurate Hall voltage values ​​due to excessive temperature;

[0173] The heat dissipation gear control module is used to determine the appropriate heat dissipation gear according to the actual temperature change so that the motor can dissipate heat effectively;

[0174] High temperature situation determination module, used to determine the occurrence of high temperature environment, so as to facilitate subsequent maintenance staff;

[0175] The usage time determination module is used to determine whether the motor has become overheated due to excessive usage time.

[0176] Those skilled in the art will clearly understand that for the sake of convenience and brevity, the division of the above-mentioned functional modules is only used as an example for illustration. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working processes of the above-mentioned systems, devices, and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0177] An embodiment of the present invention provides a computer-readable storage medium storing a computer program capable of being loaded and executed by a processor for a method for installing and detecting a Hall sensor of a brushless DC motor.

[0178] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0179] Based on the same inventive concept, an embodiment of the present invention provides an intelligent terminal including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute a brushless DC motor Hall sensor installation detection method.

[0180] Those skilled in the art will clearly understand that for the sake of convenience and brevity, the division of the above-mentioned functional modules is only used as an example for illustration. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working processes of the above-mentioned systems, devices, and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0181] The above are all preferred embodiments of the present application and are not intended to limit the scope of protection of this application. Unless otherwise specified, any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features. In other words, unless otherwise specified, each feature is merely an example of a series of equivalent or similar features.

Claims

1. A brushless DC motor Hall sensor installation and detection method, characterized in that: include: Get the trigger status information of the preset standard Hall plate; When the state corresponding to the trigger state information is consistent with the preset conduction state, the standard Hall plate is controlled to be energized, and after energization, a standard voltage value of a standard motor connected to the standard Hall plate and a test voltage value of a test motor are obtained, wherein a rotating shaft of the standard motor is coaxially connected to a rotating shaft of the test motor; Calculating the difference between the standard voltage value and the test voltage value to determine differential voltage information; Determine whether the voltage value corresponding to the differential voltage information is less than a preset deviation value; If the voltage value corresponding to the differential voltage information is less than the deviation value, a correct installation signal is output; If the voltage value corresponding to the differential voltage information is not less than the deviation value, an installation error signal is output; The Hall sensor is a linear Hall position sensor, the standard voltage value is the Hall voltage value on a standard motor, and the test voltage value is the Hall voltage value on a test motor.

2. The brushless DC motor Hall sensor installation and detection method according to claim 1, characterized in that: After the standard Hall plate is powered on, the brushless DC motor Hall sensor installation and detection method also includes: Control the countdown to start at a preset fixed time, and obtain the real-time standard value information of the standard motor and the real-time test value information of the test motor in real time; Determining real-time maximum value information among the real-time standard value information and the real-time test value information; Determine whether the value corresponding to the real-time maximum value information is greater than the preset upper limit; If the value corresponding to the real-time maximum value information is greater than the upper limit value, the standard Hall plate is controlled to be powered off and the real-time standard value information and the real-time test value information are stored in a preset storage memory; If the value corresponding to the real-time maximum numerical information is not greater than the upper limit value, the standard Hall plate is kept powered on until the fixed time timing returns to zero, and after the fixed time, the average calculation is performed based on the real-time standard numerical information to determine the standard voltage value, and the average calculation is performed based on the real-time test numerical information to determine the test voltage value.

3. The brushless DC motor Hall sensor installation and detection method according to claim 2, characterized in that: After the standard Hall plate is powered on, the brushless DC motor Hall sensor installation and detection method also includes: Get the internal temperature information of the standard motor; Determine whether the temperature value corresponding to the internal temperature information is greater than the preset danger value; If the temperature value corresponding to the internal temperature information is greater than the dangerous value, a high temperature signal is output and the standard Hall plate is controlled to be powered off, and the real-time standard value information and the real-time test value information are stored in the storage library; If the temperature value corresponding to the internal temperature information is not greater than the dangerous value, the standard Hall plate is kept powered on and it is determined whether the temperature value corresponding to the internal temperature information is greater than the preset impact value; If the temperature value corresponding to the internal temperature information is not greater than the impact value, the detection operation is maintained normally; If the temperature value corresponding to the internal temperature information is greater than the impact value, a matching analysis is performed based on the internal temperature information and the correction value information stored in the preset correction database to determine the correction value information corresponding to the internal temperature information; The real-time standard value information is corrected and updated according to the value corresponding to the corrected value information.

4. The brushless DC motor Hall sensor installation and detection method according to claim 3, characterized in that: When the temperature value corresponding to the internal temperature information is greater than the impact value, the brushless DC motor Hall sensor installation detection method further includes: The temperature value corresponding to the current internal temperature information is defined as the original temperature, and the temperature value corresponding to the current internal temperature information is defined as the current temperature after a preset unit time period; calculating a difference between the existing temperature and the original temperature to determine differential temperature information; Performing a matching analysis based on the differential temperature information and the heat dissipation gear information stored in the preset gear database to determine the heat dissipation gear information corresponding to the differential temperature information; The preset heat dissipation device is controlled to operate at the gear corresponding to the heat dissipation gear information, and the current temperature is updated to the original temperature. The current temperature is re-determined after a unit time and the heat dissipation gear information is updated.

5. The brushless DC motor Hall sensor installation and detection method according to claim 4, characterized in that: After the high temperature signal is output, the brushless DC motor Hall sensor installation and detection method also includes: A detection interval with a width equal to a preset detection duration is defined on a preset positive sequence time axis, and the back end of the detection interval is controlled to coincide with the time when the high temperature signal is output; In the detection interval, the temperature corresponding to the first internal temperature information is defined as the initial temperature, and the interval time between the initial temperature and the high temperature signal output is obtained; Calculate the difference between the temperature corresponding to the current internal temperature information and the initial temperature to determine the changed temperature information; Calculate the change rate information based on the change temperature information and the interval time information; Determine whether the value corresponding to the change rate information is greater than a preset fault value; If the value corresponding to the rate of change information is greater than the fault value, a heat dissipation fault signal is output; If the value corresponding to the rate of change information is not greater than the fault value, a long-term use signal is output.

6. The brushless DC motor Hall sensor installation and detection method according to claim 5, characterized in that: When the value corresponding to the change rate information is not greater than the fault value, the brushless DC motor Hall sensor installation detection method further includes: Get power-on start time information and current time information; Establishing a determination interval based on current time information and power-on start time information, and determining power-on duration information and interval duration information in the determination interval; Calculate the power-on ratio based on the interval duration information and the power-on duration information; Determine whether the power-on ratio value is greater than a preset reference value. If the power-on ratio value is greater than the reference value, a long-term use signal is output; If the power-on ratio value is not greater than the reference value, an abnormal signal is output.

7. A brushless DC motor Hall sensor installation and detection system, characterized in that: include: An acquisition module is used to obtain trigger status information of a preset standard Hall plate; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; The judgment module is connected with the acquisition module and the processing module and is used for judging the information; When the judgment module determines that the state corresponding to the trigger state information is consistent with the preset conduction state, the processing module controls the standard Hall plate to be energized, and after the power is energized, the acquisition module acquires a standard voltage value of a standard motor connected to the standard Hall plate and a test voltage value of a test motor, wherein a rotating shaft of the standard motor is coaxially connected to a rotating shaft of the test motor; The processing module calculates the difference between the standard voltage value and the test voltage value to determine the difference voltage information; The judgment module judges whether the voltage value corresponding to the difference voltage information is less than a preset deviation value; If the judgment module determines that the voltage value corresponding to the differential voltage information is less than the deviation value, the processing module outputs a correct installation signal; If the judgment module determines that the voltage value corresponding to the differential voltage information is not less than the deviation value, the processing module outputs an installation error signal; The Hall sensor is a linear Hall position sensor, the standard voltage value is the Hall voltage value on a standard motor, and the test voltage value is the Hall voltage value on a test motor.

8. An intelligent terminal, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes the method according to any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that A computer program is stored which can be loaded by a processor and execute the method according to any one of claims 1 to 7.

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