CN109426174A - A kind of embedded control system and control method of electric tool - Google Patents
A kind of embedded control system and control method of electric tool Download PDFInfo
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- CN109426174A CN109426174A CN201710717472.2A CN201710717472A CN109426174A CN 109426174 A CN109426174 A CN 109426174A CN 201710717472 A CN201710717472 A CN 201710717472A CN 109426174 A CN109426174 A CN 109426174A
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- 238000001514 detection method Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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Abstract
The present invention relates to a kind of embedded control system of electric tool and control methods.Mainly solve the problem of existing electric tool control system have a single function without instant rotation speed monitoring function, without displacement automatic shutdown protection function, without data storage function, without intuitive readable status display function, there is no buzzing prompting function.The present invention is by using a kind of embedded control system for electric tool, including signal acquisition unit, panel control unit, storage unit, output execution unit, status display and buzzing reminding unit and embedded control unit, the panel control unit, signal acquisition unit, storage unit output end connect respectively with the input terminal of embedded control unit, the technical solution that the output end of the embedded control unit is connect with output execution unit, status display and buzzing reminding unit respectively, preferably solves the problems, such as this.
Description
Technical field
The present invention relates to field of power tools more particularly to the embedded control systems and controlling party of a kind of electric tool
Method.
Background technique
Existing electric tool, such as electric hammer, electric drill provide electric current by the power supply of load, carry out drive motor rotation, by
The motor driving output shaft rotation work such as to drive bit to be hammered, drill.
1. the control mode that traditional electric tool takes motor is fairly simple, user is not accounted for using electronic
The different work condition environments faced when tool can not only allow operator intuitively to read the working condition of electric tool, there are no
The setting state of the intuitive read operation person of method and the history run record for setting state, cause electric tool operating status and
Tool dimension not can be carried out accurate matching, is unable to reach the peak efficiency of operation and extends the service life of machine and cutter.
2. traditional electric tool does not have store function and record export function, it is electronic using this that user can not be stored
The historical record of tool targetedly effectively can not be managed and be trained to single motor tool-user.
3. traditional machine is not effectively monitored and protected to machine abnormal displacements, beat, when machine is drilling
When occurring excessive beat range or machine abnormal displacements in the process, it will lead to the excessive loss of drill bit or even threaten operator
The personal safety of member.
Summary of the invention
The purpose of the invention is to improve the status of current conventional power tool, allow user can be in safer behaviour
Make under environment, more specification, more accurate operation machine, to reduce use cost, improves working efficiency.
The technical solution that the present invention uses to solve above-mentioned technical problem is as follows: a kind of for the embedded of electric tool
Control system, including signal acquisition unit, panel control unit, storage unit, output execution unit, status display and buzzing mention
Awake unit and embedded control unit；It is characterized in that the output of the signal acquisition unit, panel control unit, storage unit
End connect respectively with the input terminal of embedded control unit, the output end of embedded control unit respectively with export execution unit,
Status display and the connection of buzzing reminding unit；The panel control unit controls signal for setting operation, and operation is controlled
Signal is sent to the embedded control unit；The signal acquisition unit carries out real during exporting execution unit movement
When monitor, and the result monitored is fed back to the embedded control unit and is handled, then the embedded Control list
Member output control signal is adjusted the running-active status of the output execution unit；The output execution unit is received from embedding
The instruction for entering formula control unit completes corresponding operation according to the type of instruction；The status display and buzzing reminding unit are used
In the signal of display embedded control unit output and the feedback signal of the signal acquisition unit, and execute embedded control
The alarm signal of unit output processed.
In above-mentioned technical proposal, further, the signal acquisition unit includes that electrical energy measurement sensor, rotor test the speed biography
Sensor, output shaft velocity sensor, thermistor temperature sensor, carbon brush replacement detection module, six-axle acceleration sensor and
Magnetometric sensor.
Further, panel control unit is for setting electric tool operating mode, including silica gel push-button control panel, silicon
Glue key, pcb board and backlight LED luminescence component.
Further, the storage unit includes record data storage cell, mobile storage disc and systematic parameter configuration list
Member.
Further, the output execution unit includes that electromagnet can from lock unit, the bridge silicon controlled driving circuit of H and speed regulation
Control silicon driving circuit.
Further, the status display and reminding unit include liquid crystal display, LED display lamp and buzzer.
Further, the rotor velocity sensor includes being set in the first magnet ring at the top of motor rotor and setting the
First hall sensor of one magnet ring side.
Further, the output shaft velocity sensor includes the second magnet ring and the setting for being set in electric tool output shaft
The second hall sensor in the second magnet ring side, the second magnet ring use multipair magnetic pole.
Further, the integrated core that the six-axle acceleration sensor is made of three axis acceleration sensors and three axis coiling properties
Piece, the six-axle acceleration sensor are mounted on electric tool.
Further, the record data storage cell can carry out all parameters of electric tool in use
It arranges and preservation of classifying.
Further, the record that the mobile storage disc can store history run in electric tool by storage equipment
Data are downloaded.
Further, the status display and buzzing reminding unit can be to machine operation state, motoring mode, horses
It is reminded up to the technical information real-time display such as operating parameter, and in machine abnormality by buzzer, moreover it is possible to check history
Run the record data of storage state.
For achieving the above object, the present invention also provides another to have described in any item embedded controls among the above
The electric tool of system processed, the electric tool include rack, the electromagnet for being fixed on bottom of the frame, the horse being housed in rack
Reach, by motor drive and with work head mating output shaft, the motor include stator, can the relatively described stator rotation turn
Son, the commutator that is fixed on the rotor and the carbon brush component with commutator cooperation, the stator be equipped with stator around
Group, the carbon brush component include carbon brush holder and the carbon brush being mounted on carbon brush holder replacement detection module.
The technical solution that the present invention uses to solve above-mentioned technical problem is as follows:
A kind of embedded control system and control method for electric tool, the control method include:
Step 1): after system electrification, configuration parameter is read, successively starts electromagnet and motor self-check program, if all just
Often, it thens follow the steps 2), if it find that it is abnormal, then execute fault alarm program；In fault alarm program, if failure reset
Then enter system standby state, otherwise continues to execute fault alarm program；
Step 2): motor rotary speed, torque and positive and negative rotation are arranged by panel control unit；
Step 3): carrying out punch operation, continue to execute electromagnet and motor self-check program, if all normal, executes step
It is rapid 4), if it find that abnormal, then execute fault alarm program；In fault alarm program, system is entered if failure reset
Otherwise standby mode continues to execute fault alarm program；
Whether step 4): terminating to punch, if it is, it is out of service, into standby mode, otherwise, execute step 3).
In above-mentioned control method, the electromagnet self-check program includes following procedure: signal acquisition unit monitors electromagnetism
Whether iron suction is normal, if electromagnet magnetism intensity is more than or equal to default magnetism intensity, continues to execute electromagnet self-test journey
Sequence executes fault alarm program if electromagnet magnetism intensity is less than default magnetism intensity；In fault alarm program, such as
Fruit failure reset then enters system standby state, otherwise continues to execute fault alarm program.
In above-mentioned control method, the motor self-check program includes:
Motor temperature is monitored using signal acquisition unit, if motor temperature is normal value, continues to monitor horse
Fault alarm program is executed, in fault alarm program, if failure reset if motor temperature value is abnormal up to temperature
Into system standby state, fault alarm program is otherwise continued to execute；
Motor stress state is monitored using signal acquisition unit, if motor normal load, continues to monitor horse
Fault alarm program is executed, in fault alarm program, if failure reset if motor load is abnormal up to stress state
Then enter system standby state, otherwise continues to execute fault alarm program；
Motor equilibrium state is monitored using signal acquisition unit, if the variation of motor displacement beat or vibration
Range is not above setting value, then continues monitoring motor equilibrium state, if it exceeds setting value, then execute fault alarm program,
In fault alarm program, system standby state is entered if failure reset, otherwise continues to execute fault alarm program；
Carbon brush length is monitored using signal acquisition unit, if carbon brush length is normal, it is long to continue monitoring carbon brush
Degree, if carbon brush length reaches the length needed replacing, executes fault alarm program, in fault alarm program, if therefore
Barrier, which resets, then enters system standby state, otherwise continues to execute fault alarm program.
The present invention controls output execution unit by embedded control unit by the signal of signal acquisition unit acquisition feedback
It executes, and instant playback is carried out by the liquid crystal display of status display and buzzing reminding unit, have intuitive readability, such as:
Instant revolving speed, torque, running direction, and when excessively high magnet suction exception, temperature, load excessive, machine appearance occurs in machine
When abnormal displacements, vibration are excessive, status display and buzzing reminding unit can alarm shutdown at once, user can be allowed more smart in this way
Quasi- understanding state of runtime machine preferably guides user's operation machine.
The present invention carries out data preparation by embedded control unit by the signal of signal acquisition unit acquisition feedback, and
Book of final entry storage is carried out to the history run state of machine by storage unit, it, can be with after the storage content is by USB downloading
The analysis and summary that science is carried out to the log, targetedly train user convenient for after-sales staff, help user
Raising efficiency, save the cost.
The present invention is directed to the operation feelings of machine by embedded control unit by the signal of signal acquisition unit acquisition feedback
Condition carries out real time monitoring, and when machine displacement occurs, shakes excessive, stopping machine that can be autonomous is run, and reaches protection machine
And the effect of cutter, it is often more important that can protect the personal safety of user.
Detailed description of the invention
Fig. 1 is a kind of embedded control system structural schematic block diagram for electric tool of the present invention；
Fig. 2 is rotation speed monitoring circuit diagram；
Fig. 3 is data acquisition unit circuit diagram；
Fig. 4 is displacement protection circuit diagram；
Fig. 5 is carbon brush observation circuit figure；
Fig. 6 is liquid crystal display warning circuit figure；
Fig. 7 is a kind of control method flow chart for electric tool of the present invention.
In attached drawing:
1, single-chip microcontroller 2, liquid crystal display 3, the first magnet ring
4, the second magnet ring 5, the first Hall sensor 6, the second Hall sensor
7, voltage transformer 8, current transformer 9, electric energy computation chip
10, subzero temperature thermistor 11, storage chip 12, six-axle acceleration sensor
13, carbon brush 14, isolation optocoupler
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
As shown in Figure 1, the present invention provides a kind of embedded control system for electric tool, including signal acquisition list
Member, panel control unit, storage unit, output execution unit, status display and buzzing reminding unit and embedded control unit.
The embedded control unit is single-chip microcontroller, and the single-chip microcontroller uses model STM32F207 chip；
The signal acquisition unit, panel control unit, storage unit output end respectively with embedded control unit
Input terminal connection, the output end of embedded control unit connect with output execution unit, status display and buzzing reminding unit respectively
It connects；
The panel control unit controls signal for setting operation, and operating control signal is sent to described embedded
Control unit；
The signal acquisition unit carries out real-time monitoring during exporting execution unit movement, and the knot monitored
Fruit feeds back to the embedded control unit and is handled, and then the embedded control unit output control signal is to described defeated
The running-active status of execution unit is adjusted out；
The output execution unit receives the instruction from embedded control unit, completes according to the type of instruction corresponding
Operation；
The status display and buzzing reminding unit are used to show the signal and the letter of embedded control unit output
The feedback signal of number acquisition unit, and execute the alarm signal of embedded control unit output；
The signal acquisition unit includes rotor velocity sensor, output shaft velocity sensor, single-phase electric energy measurement sensory
Device, thermistor temperature sensor, carbon brush replace detection module, six-axle acceleration sensor, magnetometric sensor.
As shown in Fig. 2, rotor velocity sensor of the invention includes the first magnet ring 3 being set at the top of motor rotor and sets
The first hall sensor 5 in 3 side of the first magnet ring is set, first hall sensor 5 is connected with single-chip microcontroller.First magnetic
Ring 3 uses multipair magnetic pole, and when the rotation of the first magnet ring 3, the first magnet ring N-S magnetic pole alternating action is produced in the first hall sensor 5
Raw square wave.Rotor speed height changes, and the square-wave feedback of the corresponding variation of square wave frequency, the corresponding different frequency of rotor speed is given
Single-chip microcontroller 1,1 internal processes other side's wave number amount of single-chip microcontroller carry out calculation processing, to obtain what the revolving speed of feedback and needs exported
Within the allowable range whether, formation closed-loop control meets requirement to reach output revolving speed to the difference of revolving speed in this way.Single-chip microcontroller 1
It is connected with liquid crystal display 2, the tach signal that single-chip microcontroller 1 is fed back according to the first Hall sensor 5 passes through 2 boundary of liquid crystal display
Face is shown in a manner of text and figure.
Output shaft velocity sensor of the invention includes the second magnet ring 4 for being set in electric tool output shaft and setting the
Second hall sensor 6 of two magnet rings, 4 side, second hall sensor 6 are connected with single-chip microcontroller.Second magnet ring 4 is adopted
With multipair magnetic pole, when the rotation of the second magnet ring 4, the second magnet ring N-S magnetic pole alternating action is in the second hall sensor 6, generation side
Wave.Output shaft revolving speed height changes, and the square-wave feedback of the corresponding variation of square wave frequency, the corresponding different frequency of output shaft revolving speed is given
Single-chip microcontroller 1,1 internal processes other side's wave number amount of single-chip microcontroller carry out calculation processing, then pass through 2 real-time display of liquid crystal display one
Numerical value indicates the instant revolving speed of output shaft.
As shown in figure 3, single-phase electric energy gage probe of the invention includes voltage transformer 7, current transformer 8 and single-phase
Electric energy computation chip 9.7 input terminal of voltage transformer is connected with alternating voltage, then output end and connecting resistance connect single-phase electricity
Energy 9 voltage monitoring input port of metering chip, alternating voltage are depressured by voltage transformer 7, and resistance is attempted by mutual inductor output
Side, the AC signal of relationship proportional to alternating voltage is generated on resistance, which feeds back to electric energy computation chip 9, the list
Phase electric energy computation chip 9 uses ADE7753.8 output end of current transformer and connecting resistance, motor coil return wire pass through
Current transformer, when the motor is running, the conducting wire across current transformer 8 have electric current to flow through, and generate on current transformer 8 and electricity
The AC signal of proportional relationship is flowed, which feeds back to single-phase electric energy metering chip 9.The collected electric current of current transformer 8
Inside feedback signal and the collected voltage feedback signal feedback to single-phase electric energy metering chip of voltage transformer, single-phase electric energy meter
Chip 9 is measured by the data feedback after calculating to single-chip microcontroller 1, the data that single-chip microcontroller 1 obtains reception are handled, it can be deduced that horse
Up to running current, operation power and network voltage.Using with serial line interface and pulse output high-precision is active and apparent energy
The single-phase electric energy metering chip of the integrated circuit of metering passes through integrated second order Σ Δ ADCs, numerical scores device, reference voltage
Source carries out voltage, current effective value calculating to collected electric current and voltage signal, realizes analog-to-digital conversion, digital quantity is transmitted
To single-chip microcontroller.
Thermistor temperature sensor of the invention uses subzero temperature thermistor 10, is fixed on motor stator line and wraps, temperature
Spend sensor one with terminating circuit reference, the other end meets 3.3V by pull-up resistor and is connected with single-chip microcontroller 1, and single-chip microcontroller 1 divides
It is not connect with liquid crystal display 2, storage chip 11.When stator line packet is because of running environment and operating status difference, surface temperature
Value is fluctuation.Subzero temperature thermistor 10 is close to stator line packet, and 10 resistance value of subzero temperature thermistor is with stator surface temperature value
It fluctuates and changes.Therefore one group of voltage analog corresponding with the temperature value of variation is generated at 10 both ends of subzero temperature thermistor to believe
Number.The voltage analog signal is conveyed to single-chip microcontroller 1, and single-chip microcontroller internal processes carry out PID calculation processing to the analog quantity, obtain
One group of data corresponding with the temperature value of stator line packet surface wave.A data are selected to sentence in this group of data as excess temperature
Disconnected protection starting point.When being more than the default starting point up to temperature, then it is assumed that motor overtemperature implements stoppage protection to motor, passes through liquid
Crystal display screen 2 shows alarm content and buzzer buzzing, and is carried out by protection cumulative number of the storage chip 11 to machine
Record storage.
As shown in figure 4, six-axle acceleration sensor 12 of the invention is made of three axis acceleration sensors and three axis coiling properties
Integrated chip, which uses MPU6500 gyroscope chip, and is connected with single-chip microcontroller 1.Six-axle acceleration sensor 12
The electric tool sensed displacement or beat data are calculated, single-chip microcontroller is sent to data mode, single-chip microcontroller foundation should
Data, which are realized, is suitably protected drilling machine displacement, beat amplitude.Six-axle acceleration sensor is when each motor starting is run
It is positioned, can read three coordinate value of home position as reference value.Drilling machine monitors displacement or inclined in the process of running
Amplitude of oscillation angle value compares this value with three coordinate reference value of home position, obtains with three coordinate reference value of home position and is
The range of heart positive and negative values.If the range of the value variation monitored is more than preset range, and acceleration value is more than preset value, is recognized
Be not suitable for continuing to drill for machine, motor can be automatically stopped operation.
As shown in figure 5, carbon brush of the invention replaces detection module, carbon brush 13 and isolation optocoupler including band signal detection line
14, signal detection line one end is connected with 14 control signal of isolation optocoupler, and 14 output end of isolation optocoupler is connect by pull-up resistor
3.3V and it is connected with single-chip microcontroller 1, another end head of signal detection line is coated with insulating layer and is embedded in inside carbon brush 13.When carbon brush is ground to
When the length needed replacing, the insulating layer for being embedded in detection line head inside carbon brush is destroyed, and at this moment detection line and carbon brush body connect
Logical, driving isolation optocoupler 14 works, and generates square-wave signal, which feeds back to single-chip microcontroller 1,1 internal processes of single-chip microcontroller according to
According to the square-wave signal, judgement needs replacing carbon brush, shows replacement carbon brush prompt messages by liquid crystal display 2, and will
The accumulative replacement number storage record of carbon brush.
Magnetometric sensor of the invention uses tongue tube, is mounted on the electromagnet of electric tool bottom, and and monolithic
Machine is connected, for monitoring the magnetism intensity of electromagnet in real time.Electromagnet magnetism intensity meets the condition of tongue tube actuation, then does
Reed pipe is attracted, and generates a switching value, which sends single-chip microcontroller to.Single-chip microcontroller internal processes judge according to the switching value
Whether magnet magnetic force is abnormal, implements to protect shutdown action if abnormal.
Panel control unit of the invention is for setting electric tool operating mode, including silica gel push-button control panel, silicon
Glue key, pcb board and backlight LED luminescence component.Silica gel push-button control panel is made of multiple keys；Pcb board includes printing electricity
The multiple silica gel push-button contacts being arranged on road plate and printed circuit board, silica gel push-button contact can be relative to moving down on printed circuit board
It is dynamic；Backlight LED luminescence component is located at beside pcb board key, and is connected with pcb board single-chip microcontroller, the movement of silica gel push-button contact
The LED luminescence component can be made to open or close.
Storage unit of the invention includes record data storage cell, mobile storage disc and systematic parameter configuration unit, institute
All parameters of electric tool in use can be arranged and preservation of classifying by stating record data storage cell.Institute
Stating mobile storage disc can be downloaded by the record data that storage equipment stores history run in electric tool.System ginseng
Number configuration unit configures according to the demand of user to the machine sequence number and deleting history record data.The record number
It include storage chip according to storage unit, the storage chip and embedded control unit are connected with each other.The storage chip storage
Content include: according to watt level by stages record different capacity section accumulated running time；The voltage that machine uses is lower than
When the minimum deviation of power grid voltage rating, the accumulative protection number of machine overload；The voltage that machine uses is permitted in power grid voltage rating
When perhaps in deviation range, the accumulative protection number of machine overload；The accumulative protection number of machine motor excess temperature；Carbon brush replacement accumulative time
Number；And machine factory coding.
Output execution unit of the invention includes that electromagnet is silicon-controlled from lock unit, the bridge silicon controlled driving circuit of H and speed regulation
Driving circuit, the self-locking unit control circuit of electromagnet are connected with single-chip microcontroller；The bridge silicon controlled circuit of the H, thyristor regulating
Fast circuit is connected with single-chip microcontroller.
As shown in fig. 6, status display and buzzing reminding unit of the invention includes liquid crystal display, LED light and buzzer,
The liquid crystal display uses OLED display screen, and liquid crystal display, LED light and buzzer are connect with single-chip microcontroller respectively, single-chip microcontroller
After the signal processing that the signal acquisition unit is fed back by liquid crystal display to machine operation state, motoring mode,
The technical information real-time display such as motor operation parameter, and reminded in machine abnormality by buzzer, moreover it is possible to it checks and goes through
The record data of history operation storage state.The machine operation state includes standby, unloaded, load and loads, in specific implementation,
When machine is standby, OLED display screen shows standby picture；When motor is unloaded or load, OLED display screen shows output shaft
When revolving speed；It when motor load, is increased or reduced according to the instant speed revolution value that fluctuation of load situation is shown, revolving speed quantity increases
Big or reduction, LED light lights quantity and color changes with the fluctuation of load.The motoring mode is including rotating forward and instead
Turn, in specific implementation, when motor rotates forward, OLED display screen shows R；When motor reversion, OLED display screen shows L.The horse
It include revolving speed gear adjustment parameter and torque gear adjustment parameter up to operating parameter, in specific implementation, when revolving speed gear increases,
OLED display screen shows F when revolving speed shows that quantity increases, speed revolution value increases and revolving speed gear is adjusted to maximum.Work as revolving speed
When gear reduces, the quantity that revolving speed shows is reduced, speed revolution value reduces.When torque gear more high torque is bigger, torque gear is got over
Small torque is smaller.The machine abnormality includes that magnet suction is abnormal, temperature is excessively high, exception bits occur in load excessive, machine
It moves, shake excessive and carbon brush for motor and need replacing, in specific implementation, when motor power overload, OLED display screen shows motor
Overload suggestion content, LED blinking red lamp, buzzer buzzing；When motor excess temperature, OLED display screen is shown in the prompt of motor excess temperature
Appearance, LED blinking red lamp, buzzer buzzing；When carbon brush for motor needs replacing, in OLED display screen display replacement carbon brush prompt
Appearance, LED blinking red lamp, buzzer buzzing；After electromagnet loss of excitation, OLED display screen shows that magnetic anomalies suggestion content, LED are red
Lamp flashing, buzzer buzzing；When motor is subjected to displacement or beat amplitude is excessive extremely, OLED display screen shows motor disequilibrium
Picture suggestion content, LED blinking red lamp, buzzer buzzing.The history run storage state includes: that motor no-load power is accumulative
Runing time；Load power integration runing time of the motor between no-load power and rated power；Motor is between specified function
Load power integration runing time between rate and overload rated power 45%；The load of 45% or more motor overload rated power
Power integration runing time；When the voltage that machine uses is lower than power grid voltage rating minimum deviation, the accumulative protection of machine overload
Number；When the voltage that machine uses is within the scope of power grid voltage rating tolerance, the accumulative protection number of machine overload；Mechanical horse
Up to the accumulative protection number of excess temperature；Carbon brush replaces cumulative number；And machine factory coding.
The present invention provides a kind of electric tool, the electric tool with above-mentioned embedded control system, the electronic work
Have the electromagnet for including rack, being fixed on bottom of the frame, the motor being housed in rack, driven by motor and is coupled with work head
Output shaft, the motor include stator, can the rotor of the relatively described stator rotation, the commutator that is fixed on the rotor with
And with the commutator cooperation carbon brush component, the stator be equipped with stator winding, the carbon brush component include carbon brush holder and
The carbon brush replacement detection module being mounted on the carbon brush holder.
For the further description embedded control system provided in an embodiment of the present invention for electric tool, now tie
It is as follows that its control method is described in detail in conjunction Fig. 7:
Step 1): after system electrification, configuration parameter is read, successively starts electromagnet and motor self-check program, if all just
Often, it thens follow the steps 2), if it find that it is abnormal, then execute fault alarm program；In fault alarm process, if failure reset
Into system standby state, fault alarm program is otherwise continued to execute；
Step 2): motor rotary speed, torque and positive and negative rotation are arranged by panel control unit；
Step 3): carrying out punch operation, continue to execute electromagnet and motor self-check program, if all normal, executes step
It is rapid 4), if it find that abnormal, then execute fault alarm program；In fault alarm program, system is entered if failure reset
Otherwise standby mode continues to execute fault alarm program；
Whether step 4): terminating to punch, if it is, it is out of service by stop key, into standby mode, otherwise, execute
Step 3).
Above-mentioned control method, the electromagnet self-check program includes following procedure: signal acquisition unit monitors electromagnet
Whether suction is normal, if electromagnet magnetism intensity is more than or equal to default magnetism intensity, continues to execute electromagnet self-check program,
If electromagnet magnetism intensity is less than default magnetism intensity, fault alarm program is executed；In fault alarm journey process, if therefore
Barrier, which resets, then enters system standby state, otherwise continues to execute fault alarm program.
Above-mentioned control method, the motor self-check program include:
Motor temperature is monitored using signal acquisition unit, if motor temperature is normal value, continues to monitor horse
Fault alarm program is executed if motor temperature value is abnormal up to temperature；In fault alarm program, if failure reset
Into system standby state, fault alarm program is otherwise continued to execute；
Motor stress state is monitored using signal acquisition unit, if motor normal load, continues to monitor horse
Fault alarm program is executed if motor load is abnormal up to stress state；In fault alarm program, if failure reset
Then enter system standby state, otherwise continues to execute fault alarm program；
Machine equilibrium state is monitored using signal acquisition unit, if the variation model of machine displacement or beat value
It encloses and is not above pre-set value, then continue to monitor machine equilibrium state, if it exceeds setting value, then execute fault alarm program；
In fault alarm program, system standby state is entered if failure reset, otherwise continues to execute fault alarm program；
Carbon brush length is monitored using signal acquisition unit, if carbon brush length is normal, it is long to continue monitoring carbon brush
Degree, if carbon brush length reaches the length needed replacing, executes fault alarm program；In fault alarm program, if therefore
Barrier, which resets, then enters system standby state, otherwise continues to execute fault alarm program.
Although the illustrative specific embodiment of the present invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the range of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change the attached claims limit and determine spirit and scope of the invention in, one
The innovation and creation using present inventive concept are cut in the column of protection.
Claims (16)
1. a kind of embedded control system for electric tool, including signal acquisition unit, panel control unit, storage list
Member, output execution unit, status display and buzzing reminding unit and embedded control unit；
It is characterized by: the output end of the signal acquisition unit, panel control unit, storage unit respectively with embedded Control
The input terminal of unit connects, and the output end of embedded control unit is reminded with output execution unit, status display and buzzing respectively
Unit connection；
The panel control unit controls signal for setting operation, and operating control signal is sent to the embedded Control
Unit；
The signal acquisition unit carries out real-time monitoring during exporting execution unit movement, and the result monitored is anti-
The embedded control unit of feeding is handled, and then the embedded control unit output control signal holds the output
The running-active status of row unit is adjusted；
The output execution unit receives the instruction from embedded control unit, completes corresponding behaviour according to the type of instruction
Make；
The status display and buzzing reminding unit are used to show that the signal of embedded control unit output and the signal to be adopted
Collect the feedback signal of unit, and executes the alarm signal of embedded control unit output.
2. a kind of embedded control system for electric tool according to claim 1, it is characterised in that the signal
Acquisition unit includes electrical energy measurement sensor, rotor velocity sensor, output shaft velocity sensor, thermistor temp sensing
Device, carbon brush replacement detection module, six-axle acceleration sensor and magnetometric sensor.
3. a kind of embedded control system for electric tool according to claim 1, it is characterised in that the panel
Control unit is for setting electric tool operating mode, including silica gel push-button control panel, silica gel push-button, pcb board and backlight LED
Luminescence component.
4. a kind of embedded control system for electric tool according to claim 1, it is characterised in that the storage
Unit includes record data storage cell, mobile storage disc and systematic parameter configuration unit.
5. a kind of embedded control system for electric tool according to claim 1, it is characterised in that the output
Execution unit includes electromagnet from lock unit, the bridge silicon controlled driving circuit of H and adjusts the speed controllable silicon drive circuit.
6. a kind of embedded control system for electric tool stated according to claim 1, it is characterised in that the state is aobvious
Show and buzzing reminding unit includes liquid crystal display, LED display lamp and buzzer.
7. a kind of embedded control system for electric tool stated according to claim 2, it is characterised in that the rotor is surveyed
Fast sensor includes the first magnet ring being set at the top of motor rotor and the first hall sensor that the first magnet ring side is arranged in.
8. a kind of embedded control system for electric tool according to claim 2, it is characterised in that the output
Axis velocity sensor includes the second magnet ring for being set in electric tool output shaft and the second Hall that the second magnet ring side is arranged in
Inductor, the second magnet ring use multipair magnetic pole.
9. a kind of embedded control system for electric tool according to claim 2, it is characterised in that six axis
The integrated chip that acceleration transducer is made of three axis acceleration sensors and three axis coiling properties, the six-axle acceleration sensor peace
On electric tool.
10. a kind of embedded control system for electric tool according to claim 4, it is characterised in that the record
Data storage cell can be arranged to all parameters of electric tool in use and preservation of classifying.
11. a kind of embedded control system for electric tool according to claim 4, it is characterised in that the movement
Storage dish can be downloaded by the record data that storage equipment stores history run in electric tool.
12. a kind of embedded control system for electric tool according to claim 6, it is characterised in that the state
Display and buzzing reminding unit are for real-time to technical information such as machine operation state, motoring mode, motor operation parameters
It has been shown that, and reminded in machine abnormality by buzzer, moreover it is possible to check the record data of history run storage state.
13. a kind of electric tool, the electric tool with embedded control system described in any one of claims 1 to 12,
It is characterized in that, the electric tool include rack, the electromagnet for being fixed on bottom of the frame, the motor being housed in rack, by
Motor driving and output shaft with work head mating, the motor includes stator, can the rotor of the relatively described stator rotation, fixation
Commutator on to the rotor and the carbon brush component with commutator cooperation, the stator is equipped with stator winding, described
Carbon brush component includes carbon brush holder and the carbon brush being mounted on carbon brush holder replacement detection module.
14. a kind of control method based on electric tool as claimed in claim 13, which is characterized in that the control method packet
It includes:
Step 1): after system electrification, reading configuration parameter, successively start electromagnet and motor self-check program, if all normal,
Step 2) is executed, if it find that it is abnormal, then execute fault alarm program；In fault alarm program, if failure reset into
Enter system standby state, otherwise continues to execute fault alarm program；
Step 2): motor rotary speed, torque and positive and negative rotation are arranged by panel control unit；
Step 3): carrying out punch operation, continue to execute electromagnet and motor self-check program, if all normal, thens follow the steps 4),
If it find that it is abnormal, then execute fault alarm program；In fault alarm program, system standby shape is entered if failure reset
Otherwise state continues to execute fault alarm program；
Whether step 4): terminating to punch, if it is, it is out of service, into standby mode, otherwise, execute step 3).
15. control method according to claim 14, it is characterised in that the electromagnet self-check program includes following procedure:
Whether signal acquisition unit monitors electromagnet suction normal, if electromagnet magnetism intensity is more than or equal to default magnetism intensity,
Electromagnet self-check program is continued to execute, if electromagnet magnetism intensity is less than default magnetism intensity, executes fault alarm program；
In fault alarm program, system standby state is entered if failure reset, otherwise continues to execute fault alarm program.
16. the control method of embedded control system according to claim 14, it is characterised in that the motor self-test journey
Sequence includes:
Motor temperature is monitored using signal acquisition unit, if motor temperature is normal value, continues monitoring motor temperature
Degree executes fault alarm program if motor temperature value is abnormal；In fault alarm program, enter if failure reset
Otherwise system standby state continues to execute fault alarm program；
Motor stress state is monitored using signal acquisition unit, if motor normal load, continues monitoring motor and adds
Load state executes fault alarm program if motor load is abnormal；In fault alarm program, if failure reset into
Enter system standby state, otherwise continues to execute fault alarm program；
Motor equilibrium state is monitored using signal acquisition unit, if motor displacement beat or the variation range of vibration
It is not above setting value, then continues monitoring motor equilibrium state, if it exceeds setting value, then execute fault alarm program；In event
Hinder in alert program, system standby state is entered if failure reset, otherwise continues to execute fault alarm program；
Carbon brush length is monitored using signal acquisition unit, if carbon brush length is normal, continues to monitor carbon brush length, such as
Fruit carbon brush length reaches the length needed replacing, then executes fault alarm program；In fault alarm program, if failure reset
Then enter system standby state, otherwise continues to execute fault alarm program.
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| CN201710717472.2A CN109426174A (en) | 2017-08-21 | 2017-08-21 | A kind of embedded control system and control method of electric tool |
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|---|---|---|---|
| CN201710717472.2A CN109426174A (en) | 2017-08-21 | 2017-08-21 | A kind of embedded control system and control method of electric tool |
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