CN115642849A

CN115642849A - Brushless direct current motor Hall sensor installation detection method and system, storage medium and intelligent terminal

Info

Publication number: CN115642849A
Application number: CN202211330960.5A
Authority: CN
Inventors: 蒋文帅; 赵努东; 励小峰; 闫金歌; 许斌; 陆惟益
Original assignee: Ningbo Zhongda Leader Intelligent Transmission Co ltd
Current assignee: Ningbo Zhongda Leader Intelligent Transmission Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-24

Abstract

The application relates to a brushless direct current motor Hall sensor installation detection method, a brushless direct current motor Hall sensor installation detection system, a storage medium and an intelligent terminal, relates to the field of motor detection technology, and comprises the steps of obtaining trigger state information of a standard Hall plate; controlling the standard Hall plate to be electrified when the state corresponding to the trigger state information is consistent with the conduction state, and acquiring a standard voltage value of a standard motor connected with the standard Hall plate and a test voltage value of a test motor after the standard Hall plate is electrified; calculating a difference between the standard voltage value and the test voltage value to determine difference voltage information; judging whether the voltage value corresponding to the difference voltage information is smaller than the deviation value; if the voltage value corresponding to the difference voltage information is smaller than the deviation value, outputting a correct installation signal; and if the voltage value corresponding to the difference voltage information is not less than the deviation value, outputting an installation error signal. The method and the device have the effect of accurately detecting the installation condition of the Hall sensor in the motor.

Description

Brushless direct current motor Hall sensor installation detection method and system, storage medium and intelligent terminal

Technical Field

The application relates to the field of motor detection technology, in particular to a brushless direct current motor Hall sensor installation detection method, a brushless direct current motor Hall sensor installation detection system, a storage medium and an intelligent terminal.

Background

The direct current speed regulating system has the advantages of good control performance, wider speed regulating range, large starting torque, stable operation and the like, and the permanent magnet brushless direct current motor speed regulating system is applied mostly. The brushless DC motor is operated in such a way that the current phase sequence of a stator winding coil is changed by detecting a rotor position signal, and electromagnetic torque is generated by interaction with a permanent magnet in a rotor, so that the motion state of the motor rotor is changed, and the purpose of speed regulation is achieved. The existing common detection method for the rotor position of the brushless direct current motor comprises a Hall element sensor detection method, a linear Hall sensor is used as one of the Hall sensors, the cost is low, the size is small, hall voltage output by the linear Hall sensor in a linear region is in a direct proportion relation with the magnetic field intensity, so that a rotor position control signal with higher precision can be obtained, and high-precision control tasks such as motor vector control, position control and the like can be completed by replacing a switch Hall sensor.

In the related art, in order to ensure the normal use of the motor, the installation condition of the hall sensor needs to be detected after the motor is installed, and in the existing method, a worker generally detects the installation position of the installed hall sensor according to the experience of the worker, so that the condition that the motor cannot be normally used due to the installation error of the hall sensor is reduced.

In view of the above-mentioned related technologies, the inventor thinks that the detection effect of the hall sensor installation situation is poor due to the fact that a worker detects the situation that a detection error exists or the installation error is not detected in time through experience, and therefore it is urgently needed to design a method capable of more accurately detecting the hall sensor installation situation.

Disclosure of Invention

In order to accurately detect the installation condition of the Hall sensor in the motor, the application provides a brushless direct current motor Hall sensor installation detection method, a brushless direct current motor Hall sensor installation detection system, a storage medium and an intelligent terminal.

In a first aspect, the application provides a method for detecting the installation of a hall sensor of a brushless dc motor, which adopts the following technical scheme:

a brushless direct current motor Hall sensor installation detection method comprises the following steps:

acquiring trigger state information of a preset standard Hall plate;

controlling the standard Hall plate to be electrified when the state corresponding to the trigger state information is consistent with the preset conduction state, and acquiring a standard voltage value of a standard motor connected with the standard Hall plate and a test voltage value of a test motor after the standard Hall plate is electrified, wherein a rotating shaft of the standard motor is coaxially connected with a rotating shaft of the test motor;

calculating a difference between the standard voltage value and the test voltage value to determine difference voltage information;

judging whether the voltage value corresponding to the difference voltage information is smaller than the preset deviation value or not;

if the voltage value corresponding to the difference voltage information is smaller than the deviation value, outputting a correct installation signal;

and if the voltage value corresponding to the difference voltage information is not less than the deviation value, outputting an installation error signal.

By adopting the technical scheme, the trigger state information of the standard Hall plate is firstly acquired to determine whether the standard Hall plate needs to be electrified, when the standard Hall plate is electrified, the standard motor in the standard Hall plate loop is started, meanwhile, the standard motor can drag the test motor to be started, so that the standard motor and the test motor can both output corresponding Hall voltage values to the standard Hall plate, the Hall voltages of the standard motor and the test motor can be compared, if the Hall voltage difference value of the test motor and the Hall voltage difference value of the standard motor belongs to the set allowable deviation value, the normal operation of the test motor is described, namely, the Hall sensor in the test motor is correctly installed, and therefore, a worker can accurately determine the installation condition of the Hall sensor in the motor.

Optionally, after the standard hall plate is powered on, the method for detecting the installation of the hall sensor of the brushless dc motor further comprises:

controlling a preset fixed time length to start countdown, and acquiring real-time standard numerical value information of a standard motor and real-time test numerical value information of a test motor in real time;

determining real-time maximum numerical value information from the real-time standard numerical value information and the real-time test numerical value information;

judging whether the value corresponding to the real-time maximum value information is larger than a preset upper limit value or not;

if the value corresponding to the real-time maximum value information is larger than the upper limit value, controlling the standard Hall plate to be powered off, and storing each piece of real-time standard value information and each piece of real-time test value information into a preset storage library;

if the value corresponding to the real-time maximum value information is not larger than the upper limit value, the standard Hall plate is kept powered on until the fixed time length is timed to zero, after the fixed time length is set, the mean value calculation is carried out according to the real-time standard value information to determine the standard voltage value, and the mean value calculation is carried out according to the real-time test value information to determine the test voltage value.

By adopting the technical scheme, the Hall voltage of the test motor within a period of time can be acquired, so that the Hall voltage condition of the test motor can be accurately judged in the follow-up process; meanwhile, when the Hall voltage is abnormal in the detection process, data which are not abnormal can be stored, so that the condition of the test motor can be analyzed subsequently.

Optionally, after the standard hall plate is powered on, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

acquiring internal temperature information of a standard motor;

judging whether the temperature value corresponding to the internal temperature information is larger than a preset danger value or not;

if the temperature value corresponding to the internal temperature information is larger than the dangerous value, outputting a high-temperature signal and controlling the standard Hall plate to be powered off, and storing each piece of real-time standard numerical value information and each piece of real-time test numerical value information into a storage library;

if the temperature value corresponding to the internal temperature information is not greater than the dangerous value, the standard Hall plate is maintained to be electrified, and whether the temperature value corresponding to the internal temperature information is greater than a preset influence value or not is judged;

if the temperature value corresponding to the internal temperature information is not greater than the influence value, maintaining normal detection operation;

if the temperature value corresponding to the internal temperature information is larger than the influence value, performing matching analysis according to the internal temperature information and the correction value information stored in the preset correction database to determine correction value information corresponding to the internal temperature information;

and correcting and updating the real-time standard numerical value information according to the numerical value corresponding to the corrected numerical value information.

Through adopting above-mentioned technical scheme, can confirm the inside temperature condition of standard motor, when the inside temperature of standard motor was higher, the temperature can influence the motion of carrier and the effect of phonon scattering to make hall voltage can compare and change under conventional temperature, can revise the hall voltage who obtains in order to determine comparatively accurate hall voltage value this moment.

Optionally, when the temperature value corresponding to the internal temperature information is greater than the influence value, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

defining a temperature value corresponding to the current internal temperature information as an original temperature, and defining a temperature value corresponding to the current internal temperature information as an existing temperature after a preset unit time length;

calculating a difference between the existing temperature and the original temperature to determine difference temperature information;

performing matching analysis according to the difference temperature information and the heat dissipation gear information stored in the preset gear database to determine the heat dissipation gear information corresponding to the difference temperature information;

and controlling the preset heat dissipation device to operate in a gear corresponding to the heat dissipation gear information, updating the existing temperature to the original temperature, re-determining the existing temperature after unit time, and updating the heat dissipation gear information.

Through adopting above-mentioned technical scheme, can confirm in order to select suitable heat dissipation gear to the temperature variation condition to avoid the too big condition that causes the electric energy waste of gear when making the motor can better dispel the heat.

Optionally, after the high-temperature signal is output, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

defining a detection interval with the width of preset detection duration on a preset positive sequence time axis, and controlling the rear end of the detection interval to coincide with the time when the high-temperature signal is output;

defining the temperature corresponding to the first internal temperature information as an initial temperature in the detection interval, and acquiring interval duration information between the initial temperature and the high-temperature signal output;

calculating a difference value between the temperature corresponding to the current internal temperature information and the initial temperature to determine the change temperature information;

calculating according to the change temperature information and the interval duration information to determine change rate information;

judging whether the value corresponding to the change rate information is larger than a preset fault value or not;

if the value corresponding to the change rate information is larger than the fault value, outputting a heat dissipation fault signal;

and if the value corresponding to the change rate information is not greater than the fault value, outputting a durable signal.

Through adopting above-mentioned technical scheme, can confirm the condition whether heat abstractor damages in order to judge to the temperature variation speed condition to the staff confirms the damage position fast, so that follow-up maintenance.

Optionally, when the value corresponding to the change rate information is not greater than the fault value, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

acquiring power-on starting time information and current time information;

establishing a judgment interval according to the current time information and the power-on starting time information, and determining power-on duration information and interval duration information in the judgment interval;

calculating according to the interval duration information and the electrifying duration information to determine electrifying proportion information;

judging whether the ratio corresponding to the electrifying ratio information is larger than a preset reference value or not;

if the occupation value corresponding to the electrifying occupation value information is larger than the reference value, outputting a durable signal;

and if the occupation value corresponding to the electrifying occupation ratio information is not larger than the reference value, outputting an abnormal signal.

By adopting the technical scheme, the service condition of the standard motor in a period of time can be determined so as to determine whether the condition of overhigh temperature is caused by the fact that the standard motor is not cooled in time after being used for a long time.

In a second aspect, the present application provides a brushless dc motor hall sensor installation detection system, which adopts the following technical scheme:

a brushless DC motor Hall sensor installation detection system includes:

the acquisition module is used for acquiring the trigger state information of a preset standard Hall plate;

the processing module is connected with the acquisition module and the judgment module and used for storing and processing information;

the judging module is connected with the acquiring module and the processing module and is used for judging the information;

when the judging module judges 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 electrified, and after the standard Hall plate is electrified, the acquiring module acquires a standard voltage value of a standard motor connected with the standard Hall plate and a test voltage value of a test motor, wherein a rotating shaft of the standard motor is coaxially connected with a rotating shaft of the test motor;

the processing module calculates a difference value between the standard voltage value and the test voltage value to determine difference voltage information;

the judgment module judges whether the voltage value corresponding to the difference voltage information is smaller than the preset deviation value;

if the judgment module judges that the voltage value corresponding to the difference voltage information is smaller than the deviation value, the processing module outputs a correct installation signal;

and if the judgment module judges that the voltage value corresponding to the difference voltage information is not less than the deviation value, the processing module outputs an installation error signal.

By adopting the technical scheme, the acquisition module acquires the trigger state information of the standard Hall plate firstly so that the judgment module determines whether the standard Hall plate needs to be electrified or not, when the judgment module judges that the standard Hall plate is electrified, the processing module controls the standard motor in the standard Hall plate loop to start, meanwhile, the standard motor can drag the test motor to start, so that the standard motor and the test motor can both output corresponding Hall voltage values to the standard Hall plate, at the moment, the processing module can compare the Hall voltages of the standard Hall plate and the standard motor, if the Hall deviation value voltage of the test motor and the Hall voltage difference value of the standard motor belong to the set allowable difference value, the normal operation of the test motor is explained, namely, the Hall sensor in the test motor is correctly installed, and therefore, a worker can more accurately determine the installation condition of the Hall sensor in the motor.

In a third aspect, the present application provides an intelligent terminal, which adopts the following technical scheme:

an intelligent terminal comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute any one of the brushless direct current motor Hall sensor installation detection methods.

By adopting the technical scheme, through the use of the intelligent terminal, the trigger state information of the standard Hall plate is firstly acquired to determine whether the standard Hall plate is needed to be electrified, when the standard Hall plate is electrified, the standard motor in the standard Hall plate loop is started, and meanwhile, the standard motor can drag the test motor to be started, so that the standard motor and the test motor can both output the corresponding Hall voltage value standard Hall plate, at the moment, the Hall voltages of the standard Hall plate and the test motor can be compared, if the Hall voltage difference value of the test motor and the Hall voltage difference value of the standard motor belongs to the set allowable deviation value, the normal operation of the test motor is explained, namely, the Hall sensor in the test motor is correctly installed, and therefore, a worker can accurately determine the installation condition of the Hall sensor in the motor.

In a fourth aspect, the present application provides a computer storage medium, which can store corresponding programs, and has the characteristics of accurately detecting the installation condition of a hall sensor in a motor, and the following technical solution is adopted:

a computer readable storage medium storing a computer program that can be loaded by a processor and that can perform any of the above brushless dc motor hall sensor installation detection methods.

By adopting the technical scheme, the computer program of the brushless direct current motor Hall sensor installation detection method is arranged in the storage medium, the trigger state information of the standard Hall plate is firstly obtained to determine whether the standard Hall plate needs to be electrified, when the standard Hall plate is electrified, the standard motor in the circuit of the standard Hall plate is started, and meanwhile, the standard motor can drag the test motor to be started, so that the standard motor and the test motor can both output corresponding Hall voltage values to the standard Hall plate, the Hall voltages of the standard motor and the test motor can be compared, if the Hall voltage difference value of the test motor and the Hall voltage difference value of the standard motor is within the set allowable deviation value, the normal operation of the test motor is explained, namely the Hall sensor in the test motor is correctly installed, and thus, a worker can more accurately determine the installation condition of the Hall sensor in the motor.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the motor to be detected can be detected in a linear Hall manner, so that the installation condition of a Hall sensor installed in the motor can be accurately determined;

2. the data in the power failure can be effectively stored, so that the condition of the motor can be analyzed according to the corresponding data in the follow-up process;

3. the motor temperature can be detected and judged so as to reduce the condition that the linear Hall judgment is inaccurate due to overhigh motor temperature.

Drawings

Fig. 1 is a flow chart of a brushless dc motor hall sensor installation detection method.

Fig. 2 is a schematic view of the detection device connection installation.

FIG. 3 is a flow chart of a Hall voltage acquisition method.

Fig. 4 is a flow chart of a standard motor internal temperature condition determination method.

Fig. 5 is a flowchart of a heat sink heat dissipation position determining method.

FIG. 6 is a flow chart diagram of a method of determining a rate of temperature change.

Fig. 7 is a flowchart of a standard motor energization work condition determination method.

Fig. 8 is a block flow diagram of a brushless dc motor hall sensor installation detection method.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-8 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.

The embodiment of the application discloses brushless direct current motor hall sensor installation detection method, can utilize standard hall working plate and standard motor in order to detect the test motor, carry out the analysis in order to confirm whether the great condition of deviation appears through the hall voltage value of two motors, when hall voltage deviation is great, explain the hall sensor installation mistake in the test motor to realize comparatively accurate confirming hall sensor installation condition in the motor.

Referring to fig. 1, a method flow of a brushless dc motor hall sensor installation detection method includes the following steps:

step S100: and acquiring the trigger state information of a preset standard Hall plate.

The standard Hall plate is a linear Hall tool detection plate which is provided with correct installation of each component and has a signal transmission function and a communication function, and the state corresponding to the trigger state information is the driving state of the standard Hall plate, namely whether a worker needs to operate the standard Hall plate or not; the standard Hall plate can be connected with an external computer to receive and transmit corresponding signals, and meanwhile, the recording state of the standard Hall plate can be detected in the process that the standard Hall plate is installed on a corresponding loop, so that the condition that subsequent detection is inaccurate due to inaccurate installation of the standard Hall plate is reduced.

Step S101: and controlling the standard Hall plate to be electrified when the state corresponding to the trigger state information is consistent with the preset conduction state, and acquiring the standard voltage value of the standard motor connected with the standard Hall plate and the test voltage value of the test motor after the standard Hall plate is electrified, wherein the rotating shaft of the standard motor is coaxially connected with the rotating shaft of the test motor.

The conducting state is the state of the standard Hall plate when the standard Hall plate needs to operate, when the state corresponding to the trigger state information is consistent with the conducting state, the standard Hall plate needs to operate, and at the moment, the standard Hall plate is controlled to be electrified; the standard motor is connected with the standard Hall plate, the internal Hall sensor is correctly installed, the motor without abnormity is not present, the rotating shafts of the test motor and the standard motor are coaxially connected, referring to FIG. 2, the test motor and the standard motor can be connected through a coupler so as to realize that the standard motor drags the test motor to rotate, meanwhile, the Hall voltage output ends of the test motor and the standard motor are both connected to the standard Hall plate, wherein the standard motor and the test motor are both brushless direct current motors; the standard voltage value is a Hall voltage value on the standard motor, and the test voltage value is a Hall voltage value on the test motor.

Step S102: a difference between the standard voltage value and the test voltage value is calculated to determine difference voltage information.

And the voltage value corresponding to the difference voltage information is a phase difference value between the test voltage value and the standard voltage value, and the standard voltage value is subtracted from the test voltage value and an absolute value is evaluated to determine the difference value.

Step S103: and judging whether the voltage value corresponding to the difference voltage information is smaller than the preset deviation value.

The deviation value is the minimum Hall difference value set by the operator for identifying the installation error of the Hall sensor on the test motor, the numerical value can be recorded by the operator through an external computer according to the actual demand condition, and the purpose of judgment is to know whether the Hall voltage value of the current test motor is normal or not.

Step S1031: and if the voltage value corresponding to the difference voltage information is smaller than the deviation value, outputting a correct installation signal.

When the voltage value corresponding to the difference voltage information is smaller than the deviation value, the difference between the Hall voltage value of the current test motor and the Hall voltage value of the standard motor is not large, namely, the Hall voltage value of the current test motor is in a reasonable range, namely, the test motor is normal, so that the Hall sensor installed in the test motor is correct, at the moment, an installation correct signal is output to mark the situation, so that a worker knows the situation, and the installation correct signal can be transmitted to an external computer so as to be observed by the worker.

Step S1032: and if the voltage value corresponding to the difference voltage information is not less than the deviation value, outputting an installation error signal.

When the voltage value corresponding to the difference voltage information is not smaller than the deviation value, the situation that the Hall voltage value of the current testing motor is too large in deviation and the Hall sensor is installed incorrectly is shown, and an installation error signal is output to identify the Hall voltage value, so that a worker can timely know the situation to process the Hall voltage value.

Referring to fig. 3, after the standard hall plate is powered on, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

step S200: and controlling a preset fixed time length to start countdown, and acquiring real-time standard numerical value information of the standard motor and real-time test numerical value information of the test motor in real time.

The fixed time length is the time length which is set by a worker and needs to test the test motor, specific numerical values can be input by the worker through an external computer, the numerical value corresponding to the real-time standard numerical value information is the Hall voltage numerical value obtained by the standard motor in real time, the numerical value corresponding to the real-time test numerical value information is the Hall voltage numerical value obtained by the test motor in real time, and the obtaining frequency of the fixed time length and the obtaining frequency of the real-time standard numerical value information is determined by the reversing frequency of the switch Hall signal in one signal period, namely six times.

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

The value corresponding to the maximum value information is the larger value of the values corresponding to the real-time standard value information and the real-time test value information at the same time point.

Step S202: and judging whether the value corresponding to the real-time maximum value information is larger than a preset upper limit value or not.

The upper limit value is the maximum Hall voltage value allowed by normal operation of each device in the Hall voltage calculation process, and the purpose of judgment is to know whether the current Hall voltage is normal so as to judge whether a standard motor or a test motor is normal.

Step S2021: and if the value corresponding to the real-time maximum value information is larger than the upper limit value, controlling the standard Hall plate to be powered off, and storing each piece of real-time standard value information and each piece of real-time test value information into a preset storage library.

When the value corresponding to the real-time maximum value information is larger than the upper limit value, it indicates that the current situation of a large hall voltage value exists and the situation of an abnormal operation of the standard motor or the test motor exists, at this time, the standard hall plate is controlled to be powered off to stop the operation of the standard motor, so that the operation stability is high, and meanwhile, the acquired data can be stored in a corresponding storage library to facilitate a subsequent worker to call and analyze the data, wherein the establishment method of the storage library is a conventional technical means of the worker in the field and is not described in detail.

Step S2022: if the value corresponding to the real-time maximum value information is not larger than the upper limit value, the standard Hall plate is kept powered on until the fixed time length is timed to zero, after the fixed time length is set, the mean value calculation is carried out according to the real-time standard value information to determine the standard voltage value, and the mean value calculation is carried out according to the real-time test value information to determine the test voltage value.

When the value corresponding to the real-time maximum value information is not larger than the upper limit value, the standard motor and the test motor are both in normal operation, the standard Hall plate is kept powered on until the fixed time length is set to zero, then the value corresponding to each piece of real-time standard value information is used for carrying out mean value solving to determine the standard voltage value, and the value corresponding to each piece of real-time test value information is used for carrying out mean value solving to determine the test voltage value, so that the determined standard voltage value and the test voltage value are more accurate, and the occurrence of the situation that the overall error is larger due to the fact that part of data is inaccurate is reduced.

Referring to fig. 4, after the standard hall plate is powered on, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

step S300: and acquiring internal temperature information of the standard motor.

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

Step S301: and judging whether the temperature value corresponding to the internal temperature information is greater than a preset danger value or not.

The danger value is the minimum temperature value set by a worker when the temperature in the standard motor is obviously not the temperature when the motor is normally used, and the purpose of judgment is to know whether the standard motor normally works.

Step S3011: if the temperature value corresponding to the internal temperature information is larger than the dangerous value, outputting a high-temperature signal and controlling the standard Hall plate to be powered off, and storing each piece of real-time standard numerical value information and each piece of real-time test numerical value information into a storage library.

When the temperature value corresponding to the internal temperature information is larger than the dangerous value, the internal temperature of the motor is over high and is not the temperature of the standard motor under normal operation, a high-temperature signal is output to mark and record the condition, the standard Hall plate is controlled to be powered off to reduce the condition of detecting accidents caused by abnormal motor, and meanwhile, the obtained data is stored to facilitate subsequent analysis of workers.

Step S3012: if the temperature value corresponding to the internal temperature information is not larger than the dangerous value, the standard Hall plate is kept electrified, and whether the temperature value corresponding to the internal temperature information is larger than a preset influence value or not is judged.

When the temperature value corresponding to the internal temperature information is not greater than the dangerous value, the internal temperature of the standard motor is normal, and the standard motor is in normal working operation at the moment; the influence value is the minimum temperature value that the inside temperature of motor that the staff set up can produce certain influence to hall voltage value, and the purpose of judgement is whether the temperature in order to learn the inside motor of standard can influence the produced hall voltage value of standard motor to subsequent analysis.

Step S30121: if the temperature value corresponding to the internal temperature information is not greater than the influence value, normal operation is maintained.

When the temperature value corresponding to the internal temperature information is not greater than the influence value, it is indicated that the internal temperature of the standard motor does not influence the generated hall voltage value, and the normal detection operation is maintained.

Step S30122: and if the temperature value corresponding to the internal temperature information is larger than the influence value, performing matching analysis according to 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.

When the temperature value corresponding to the internal temperature information is greater than the influence value, it is indicated that the internal temperature of the motor is high at this time, which is easy to influence the generated hall voltage value, and further processing is needed at this time; the corresponding value of the corrected value information is a deviation value caused by comparing the hall voltage of the motor at the temperature corresponding to the internal temperature information with the hall voltage at the normal temperature, the corresponding relationship between the corrected value information and the hall voltage is determined by a worker according to an experiment, and a corrected database is established according to the corresponding relationship between the corrected value information and the hall voltage, and the establishing method of the database is a conventional technical means of the worker in the field and is not described in detail.

Step S302: and correcting and updating the real-time standard numerical value information according to the numerical value corresponding to the corrected numerical value information.

And the real-time standard numerical value information is corrected and updated according to the numerical value corresponding to the corrected numerical value information, so that the obtained real-time standard numerical value information is not easily influenced by temperature, and the error condition of subsequent Hall difference value calculation is reduced.

Referring to fig. 5, when the temperature value corresponding to the internal temperature information is greater than the influence value, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

step S400: and defining the temperature value corresponding to the current internal temperature information as an original temperature, and defining the temperature value corresponding to the current internal temperature information as the current temperature after the preset unit time length.

When the temperature value corresponding to the internal temperature information is greater than the influence value, the internal temperature of the motor is high, and cooling and heat dissipation treatment needs to be carried out on the motor at the moment; the temperature value corresponding to the current internal temperature information is defined as an original temperature to be identified so as to determine a temperature value higher than an influence value, unit time length is a numerical value set by a worker and required to monitor the temperature, the temperature value corresponding to the current internal temperature information after the unit time length is defined as an existing temperature to be identified so as to know the specific condition of the temperature inside the motor after the unit time length, and different temperature values are sequentially distinguished.

Step S401: a difference between the existing temperature and the original temperature is calculated to determine difference temperature information.

The temperature corresponding to the difference temperature information is the variation of the temperature in the standard motor in unit time length, and the calculation method is that the original temperature is subtracted from the existing temperature.

Step S402: and performing matching analysis according to the difference temperature information and the heat dissipation gear information stored in the preset gear database to determine the heat dissipation gear information corresponding to the difference temperature information.

The gear corresponding to the heat dissipation gear information is an operation gear corresponding to a heat dissipation device in a standard motor, different difference 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 difference temperature information and the heat dissipation gear information is determined by a worker according to an experiment, a gear database is established according to the corresponding relationship, and the establishment method of the database is a conventional technical means of a worker in the field and is not described in detail.

Step S403: and controlling the preset heat dissipation device to operate in a gear corresponding to the heat dissipation gear information, updating the existing temperature to the original temperature, re-determining the existing temperature after unit time, and updating the heat dissipation gear information.

The control heat abstractor is with the gear operation that the gear information that dispels the heat corresponds so that standard motor has comparatively suitable heat dissipation function, makes the condition that the gear that dispels the heat can not be too big so as to cause the electric energy waste simultaneously, carries out the real time monitoring to current temperature and original temperature in order to realize the inside temperature of standard motor to the continuous renewal, and the gear information that looses that constantly confirms to be fit for uses so that standard motor can better dispel the heat.

Referring to fig. 6, after the high temperature signal is output, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

step S500: and defining a detection interval with the width of preset detection duration on a preset positive sequence time axis, and controlling the rear end of the detection interval to coincide with the time when the high-temperature signal is output.

The positive sequence time axis is a coordinate value formed by all time points, the detection time length is the time length set by a worker and required for detecting the temperature in the motor, the detection time length is less than a fixed time length, a specific numerical value is set by the worker, the detection interval is an interval for acquiring data of different time points, and the rear end of the detection interval is controlled to coincide with the time when a high-temperature signal is output so as to realize acquisition of standard motor data before the high-temperature signal is output and facilitate subsequent analysis.

Step S501: and defining the temperature corresponding to the first internal temperature information as an initial temperature in the detection interval, and acquiring interval duration information between the initial temperature and the high-temperature signal output.

The temperature corresponding to the first internal temperature information in the detection interval is the internal temperature information acquired first in the detection interval, namely the first temperature information in the detection interval after the standard motor is electrified, and the temperature is defined as the initial temperature for identification so as to distinguish different temperatures; the time length corresponding to the interval time length information is a time length interval value of the time length when the initial temperature occurs and the time length when the high-temperature signal is output.

Step S502: and calculating the difference value between the temperature corresponding to the current internal temperature information and the initial temperature to determine the change temperature information.

The temperature value corresponding to the change temperature information is the temperature change value in the time length corresponding to the interval time length information in the standard motor, and the initial temperature is subtracted from the temperature corresponding to the current internal temperature information to determine the change temperature.

Step S503: and calculating according to the change temperature information and the interval duration information to determine the change rate information.

The value corresponding to the change rate information is a change speed value of the internal temperature of the standard motor, and is determined by dividing the temperature value corresponding to the change temperature information by the time length value corresponding to the interval time length information.

Step S504: and judging whether the value corresponding to the change rate information is larger than a preset fault value or not.

The fault value is a minimum temperature change speed value set by a worker when the standard motor internal heat dissipation system fails, and the purpose of judgment is to know whether the heat dissipation system is damaged.

Step S5041: and if the value corresponding to the change rate information is larger than the fault value, outputting a heat dissipation fault signal.

When the value corresponding to the change rate information is larger than the fault value, the problem of the heat dissipation system in the standard motor is shown, and a heat dissipation fault signal is output to identify the fault value, so that a worker can know the position of the fault in time, and the follow-up maintenance is facilitated.

Step S5042: and if the value corresponding to the change rate information is not greater than the fault value, outputting a long-service signal.

When the value corresponding to the change rate information is not greater than the fault value, it is indicated that the heat dissipation system has no problem, at this moment, the standard motor is possibly used for detection for a long time, so that the internal temperature is higher, and at this moment, a long-time signal is output to identify the situation, so that the working personnel can know the situation in time and process the situation.

Referring to fig. 7, when the value corresponding to the change rate information is not greater than the fault value, the method for detecting the installation of the hall sensor of the brushless dc motor further includes:

step S600: and acquiring power-on starting time information and current time information.

The time corresponding to the power-on starting time information is the first power-on time of the standard motor in a certain time period, if the interval between the two power-on times is a certain time, the subsequent power-on time is determined as the first power-on, namely the current power-on starting time information; and the time corresponding to the current time information is the time when the value corresponding to the detected change rate information is not greater than the fault value.

Step S601: and establishing a judgment interval according to the current time information and the electrifying starting time information, and determining electrifying time length information and interval time length information in the judgment interval.

The judgment interval is a time interval in which the time corresponding to the power-on starting time information and the time corresponding to the current time information are on a positive sequence time axis, the time corresponding to the interval time length information is an interval overall length value, the time corresponding to the power-on time length information is the overall time for powering on the standard motor in the judgment interval, and the standard motor operation condition can be monitored to determine the time.

Step S602: and calculating according to the interval time length information and the electrifying time length information to determine electrifying proportion information.

The value corresponding to the electrifying proportion information is the proportion value of the electrifying time used by the standard motor in a certain time, and is determined by dividing the time length corresponding to the electrifying time length information by the time length corresponding to the interval time length information.

Step S603: and judging whether the occupation ratio value corresponding to the electrifying occupation ratio information is larger than a preset reference value or not.

The reference value is the minimum power-on proportion value set by a worker when the standard motor is determined to be long in service time and not radiate heat timely, and the purpose of judgment is to know whether the current high-temperature condition is caused by long-time use of the standard motor and non-timely radiation of heat.

Step S6031: and if the occupation value corresponding to the electrifying occupation ratio information is larger than the reference value, outputting a long-term signal.

When the corresponding proportion value of the electrifying proportion information is larger than the reference value, the service life of the standard motor is longer, and at the moment, a long-time signal is output to explain the situation so that a worker can know the specific situation conveniently.

Step S6032: and if the occupation value corresponding to the electrifying occupation ratio information is not larger than the reference value, outputting an abnormal signal.

When the occupation ratio value corresponding to the electrifying occupation ratio information is not more than the reference value, the service life of the standard motor is short, and the condition that the standard motor is not used for a long time and does not radiate heat in time does not exist at the moment, so that an abnormal signal is output to enable a worker to know the condition, and the worker can conveniently determine the specific abnormal condition.

Referring to fig. 8, based on the same inventive concept, an embodiment of the present invention provides a brushless dc motor hall sensor mounting detection system, including:

if the judgment module judges that the voltage value corresponding to the difference voltage information is not smaller than the deviation value, the processing module outputs an installation error signal;

the voltage acquisition and solving module is used for acquiring Hall voltage values of the standard motor and the test motor within a period of time so as to determine the final deviation condition;

the temperature condition determining module is used for determining the temperature condition in the standard motor so as to reduce the occurrence of inaccurate Hall voltage value caused by overhigh temperature;

the heat dissipation gear control module is used for determining a reasonable heat dissipation gear according to the actual temperature change condition so that the motor can effectively dissipate heat;

the high-temperature condition determining module is used for determining the condition of a high-temperature environment so as to facilitate the maintenance of subsequent workers;

and the using time length determining module is used for determining whether the motor is in a high-temperature condition due to the fact that the using time length is too long.

It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

An embodiment of the present invention provides a computer-readable storage medium storing a computer program that can be loaded by a processor and execute a brushless dc motor hall sensor installation detection method.

Computer storage media include, for example: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on the same inventive concept, the embodiment of the invention provides an intelligent terminal, which comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute the brushless direct current motor hall sensor installation detection method.

The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims

1. A brushless direct current motor Hall sensor installation detection method is characterized by comprising the following steps:

acquiring trigger state information of a preset standard Hall plate;

2. The method of claim 1, wherein after the standard hall plate is powered on, the method further comprises:

and if the value corresponding to the real-time maximum value information is not greater than the upper limit value, maintaining the power-on of the standard Hall plate until the fixed time length is zero, performing mean value calculation according to the real-time standard value information after the fixed time length to determine a standard voltage value, and performing mean value calculation according to the real-time test value information to determine a test voltage value.

3. The method of claim 2, wherein after the standard hall plate is powered on, the method further comprises:

acquiring internal temperature information of a standard motor;

if the temperature value corresponding to the internal temperature information is not greater than the influence value, normal operation of detection is maintained;

4. The method for detecting the installation of the hall sensor of the brushless dc motor according to claim 3, wherein when the temperature value corresponding to the internal temperature information is greater than the influence value, the method for detecting the installation of the hall sensor of the brushless dc motor further comprises:

5. The method for detecting the installation of the hall sensor of the brushless dc motor according to claim 4, wherein after the high temperature signal is outputted, the method for detecting the installation of the hall sensor of the brushless dc motor further comprises:

calculating the difference value between the temperature corresponding to the current internal temperature information and the initial temperature to determine the change temperature information;

and if the value corresponding to the change rate information is not greater than the fault value, outputting a long-service signal.

6. The brushless direct current motor hall sensor mounting detection method of claim 5, wherein when the value corresponding to the change rate information is not greater than the fault value, the brushless direct current motor hall sensor mounting detection method further comprises:

acquiring power-on starting time information and current time information;

7. The utility model provides a brushless DC motor hall sensor installation detecting system which characterized in that includes:

if the judgment module judges that the voltage value corresponding to the difference voltage information is not less than the deviation value, the processing module outputs an installation error signal.

8. An intelligent terminal, comprising a memory and a processor, the memory having stored thereon a computer program that can be loaded by the processor and that executes the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, in which a computer program is stored which can be loaded by a processor and which executes the method of any one of claims 1 to 6.