CN209605837U - A kind of electronic type odometer system based on Hall sensor - Google Patents
A kind of electronic type odometer system based on Hall sensor Download PDFInfo
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- CN209605837U CN209605837U CN201920698760.2U CN201920698760U CN209605837U CN 209605837 U CN209605837 U CN 209605837U CN 201920698760 U CN201920698760 U CN 201920698760U CN 209605837 U CN209605837 U CN 209605837U
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Abstract
The utility model discloses a kind of electronic type odometer system based on Hall sensor, including Hall sensor module, filter module, microprocessor module and power module；The output end of the Hall sensor module is connect with the input terminal of the filter module, the output end of the filter module is connect with the signal input pin of the microprocessor module, the input terminal of the power module is connect with motor feeder ear, and output end is connect with the power pins of the power end of the Hall sensor module and microprocessor module respectively.The utility model obtains motor pulses signal using Hall sensor module, filter module and microprocessor module, realizes the utility functions such as mileage record；And pass through the realization of setting level switch module and transmitted with external data, under the premise of not influencing brushless motor normal work, by making full use of Hall sensor, brushless motor system function is enhanced, is laid the foundation for the intelligence use of brushless motor.
Description
Technical field
The utility model belongs to Hall sensor field more particularly to a kind of electronic type mileometer based on Hall sensor
System.
Background technique
Compared to traditional brush motor, brushless motor has frictional dissipation small, and noise is low, high-efficient, a system such as service life length
Column feature.With the cost downward trend and the development and market competition of brushless technology both at home and abroad of brushless controller, brushless power
The system development of high speed and stage of popularization.
Brushless motor is by electronically commutating.It must be powered according to particular order to stator, brushless electronic could be made
It works normally.Therefore we need using sensor feedback rotor-position, so that brushless motor works normally.Stator at present
Position is mainly perceived by being embedded in the Hall sensor of stator.3 Hall sensors would generally be arranged in the rotary road of rotor
Around diameter.As long as the magnetic pole of rotor skims over Hall element, according to the polarity of the current magnetic pole of rotor, Hall element can export correspondence
Low and high level, as long as in this way according to 3 Hall elements generate level timing it may determine that current rotor position, and
It is powered accordingly to stator winding.
In tradition application, the output signal of Hall original part is only supplied to electric machine control system as control signal.As nothing
Core devices and unique sensor in brush motor, undoubtedly a kind of waste.
Utility model content
The purpose of this utility model is: in order to solve problem above existing in the prior art, the utility model proposes
A kind of electronic type odometer system based on Hall sensor, to realize while not influencing brushless motor normal work,
Realize the functions such as mileage record.
The technical solution of the utility model is: a kind of electronic type odometer system based on Hall sensor, including Hall
Sensor module, filter module, microprocessor module and power module；The output end of the Hall sensor module with it is described
The input terminal of filter module connects, the signal input pin of the output end of the filter module and the microprocessor module
Connection, the input terminal of the power module connect with motor feeder ear, output end respectively with the Hall sensor module
The connection of the power pins of power end and microprocessor module.
Further, the Hall sensor module specifically includes three Hall sensors, wherein each Hall sensor
It include power pins, grounding pin and signal output pin, the power pins of the Hall sensor and the power module
Output end connection, the signal output pin of the Hall sensor connect with the input terminal of the filter module.
Further, the filter module specifically uses RC filter.
Further, the microprocessor module specifically uses STC15F series monolithic.
Further, the power module specifically uses 7805 voltage stabilizing chips.
It further, further include level switch module, the input terminal of the level switch module and the microprocessor mould
The signal output pin of block connects.
Further, in the level switch module, the grid of NMOS transistor TR1 respectively with the one end resistance R1, resistance
The grid of the one end R2, voltage end VDD1 and NMOS transistor TR2 connects, and the source electrode of NMOS transistor TR1 is another with resistance R1 respectively
One end and serial data line SDA1 connection, the drain electrode of NMOS transistor TR1 respectively with the one end resistance R4 and serial data line SDA2
Connection, the source electrode of NMOS transistor TR2 are connect with the resistance R2 other end and clock line SCL1 respectively, the leakage of NMOS transistor TR2
Pole is connect with the one end resistance R3 and clock line SCL2 respectively, and the other end of resistance R3 and resistance R4 are connect with voltage end VDD2.
The beneficial effects of the utility model are: the utility model utilizes Hall sensor module, filter module and Wei Chu
It manages device module and obtains motor pulses signal, realize the utility functions such as mileage record；And it is realized by setting level switch module
It transmits with external data, under the premise of not influencing brushless motor normal work, by making full use of Hall sensor, enhances
Brushless motor system function lays the foundation for the intelligent use of brushless motor.
Detailed description of the invention
Fig. 1 is the electronic type odometer system structural schematic diagram based on Hall sensor of the utility model；
Fig. 2 is the structural schematic diagram of Hall sensor module in the utility model embodiment；
Fig. 3 is the structural schematic diagram of filter module in the utility model embodiment；
Fig. 4 is the structural schematic diagram of microprocessor module in the utility model embodiment；
Fig. 5 is the structural schematic diagram of power module in the utility model embodiment；
Fig. 6 is the structural schematic diagram of level switch module in the utility model embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1, being the electronic type odometer system structural schematic diagram based on Hall sensor of the utility model；One
Electronic type odometer system of the kind based on Hall sensor, including Hall sensor module, filter module, microprocessor module
And power module；The output end of the Hall sensor module is connect with the input terminal of the filter module, the filter
The output end of module is connect with the signal input pin of the microprocessor module, and the input terminal and motor of the power module supply
Electric end connection, output end connect with the power pins of the power end of the Hall sensor module and microprocessor module respectively
It connects.
In an alternative embodiment of the utility model, as shown in Fig. 2, above-mentioned Hall sensor module specifically includes three
A Hall sensor, for providing feedback to three phase supply.Wherein each Hall sensor includes power pins VCC, ground connection
Pin GND and signal output pin S1；The power pins VCC of the Hall sensor and the output end of the power module connect
It connects, power pins VCC and grounding pin GND provide power supply jointly for Hall sensor；The signal of the Hall sensor exports
Pin S1 is connect with the input terminal of the filter module, carries out signal filtering processing.
In an alternative embodiment of the utility model, as shown in figure 3, above-mentioned filter module specifically uses RC to filter
Device, a termination input signal u of resistance R and capacitor C in RC filter1, the other end of resistance R and capacitor C be connected and with capacitor C
One termination output signal u2, so that input signal u1Output waveform when being worked by single order RC low-pass filter brushless motor
Burr, interference of upper superposition etc. are handled, and High-frequency Interference is inhibited, and guarantee smoothly completes counting, guarantee the effective of record data
Property.Wherein the selection of resistance R value will determine according to microprocessor internal resistance, and micro processor leg input voltage is can after guaranteeing partial pressure
In identification range.C value is chosen simultaneously determines according to real work revolving speed, and RC value has codetermined filter cutoff frequency.Filtering
The cutoff frequency of device is about 1kHz-2kHz, need to be according to real work output waveform situation appropriate adjustment.Filter output signal has
Slight distortion but no longer it is superimposed with disturbing pulse, it is possible to provide give microprocessor count.
In an alternative embodiment of the utility model, as shown in figure 4, above-mentioned microprocessor module can use 8
Band on piece EEPROM microprocessor, specifically uses STC15F series monolithic.The counting pin and filter module of microprocessor
Signal output end connection, current power supply motor rotation can be obtained by recording pulse positive level number in filtered signal
Enclose number, while recording data and tire specification according to EEPROM in piece to calculate total mileage, thus realize mileage record,
The functions such as motor status monitoring.The above-mentioned mode for calculating mileage number according to motor rotation circle number is ordinary skill in the art hand
Section, does not repeat here.In addition to power pins and RST pin, a pin is also needed to complete counting and two pins to waveform
Complete IIC communication.
During the work time, current motor rotation circle number is updated in piece by the utility model according to mileage record precision
EEPROM.Meanwhile the microprocessor module of the utility model can use IIC communication protocol, receive external incoming instruction, realize
It saves zeros data, data and the functions such as writes with a brush dipped in Chinese ink；The letter such as current Hall sensor ID, the total revolution of motor can also be spread out of to outside
Breath is further realized and is communicated with external reader or blind controller system.In addition, communication process can choose additional password
Information prevents on piece information from illegally distorting to guarantee security of system.
In an alternative embodiment of the utility model, as shown in figure 5, above-mentioned power module is mainly used for passing to Hall
Sensor module and microprocessor module power supply.Voltage needed for Hall sensor module and microprocessor module in the utility model
For 5V, to meet integrated design, the input terminal of power module is connect by the utility model with motor feeder ear, and steady using 5V
Voltage needed for pressing chip to obtain.
In the power module, 7805 voltage stabilizing chips are specifically used, the input terminal of voltage stabilizing chip passes through diode D1 and motor
Feeder ear connection, the output end of voltage stabilizing chip export 5V voltage to Hall sensor module and microprocessor module, voltage stabilizing chip
Ground terminal ground connection, and connect with output end by capacitor C1.
In an alternative embodiment of the utility model, it is micro- that the utility model also passes through setting level switch module realization
Processor is communicated with external IIC.IIC communication needs pin open-drain output and adds pull-up resistor, control core primarily now
Piece is mostly the design of 3.3V power supply, therefore need to complete electricity using NMOS transistor pipe for the two communication scheme level shifting circuit
Flat conversion function.
As shown in fig. 6, in above-mentioned level switch module, the grid of NMOS transistor TR1 respectively with the one end resistance R1, resistance
The grid of the one end R2, voltage end VDD1 and NMOS transistor TR2 connects, and the source electrode of NMOS transistor TR1 is another with resistance R1 respectively
One end and serial data line SDA1 connection, the drain electrode of NMOS transistor TR1 respectively with the one end resistance R4 and serial data line SDA2
Connection, the source electrode of NMOS transistor TR2 are connect with the resistance R2 other end and clock line SCL1 respectively, the leakage of NMOS transistor TR2
Pole is connect with the one end resistance R3 and clock line SCL2 respectively, and the other end of resistance R3 and resistance R4 are connect with voltage end VDD2.
The utility model is realized while not influencing brushless motor normal work by transformation hall sensor circuit
Motor rotations record, data power down storage, monitoring abnormal state function, realize intelligent mileometer design, fundamentally keep away
Exempt from conventional brush-less motor application, has additionally replenished equipment to realize such demand, under the premise of low manufacturing cost, sufficiently
Using Hall sensor, brushless motor system function is enhanced, is laid the foundation for the intelligent use of brushless motor.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this reality
With novel principle, it should be understood that the scope of the present invention is not limited to such specific embodiments and embodiments.
Those skilled in the art can be made according to the technical disclosures disclosed by the utility model it is various do not depart from it is practical
Novel substantive various other specific variations and combinations, these variations and combinations are still within the protection scope of the present invention.
Claims (7)
1. a kind of electronic type odometer system based on Hall sensor, which is characterized in that including Hall sensor module, filtering
Device module, microprocessor module and power module；The output end of the Hall sensor module is defeated with the filter module
Enter end connection, the output end of the filter module is connect with the signal input pin of the microprocessor module, the power supply
The input terminal of module is connect with motor feeder ear, output end respectively with the power end and micro process of the Hall sensor module
The power pins of device module connect.
2. the electronic type odometer system based on Hall sensor as described in claim 1, which is characterized in that the Hall passes
Sensor module specifically includes three Hall sensors, wherein each Hall sensor includes power pins, grounding pin and letter
Number output pin, the power pins of the Hall sensor are connect with the output end of the power module, the Hall sensor
Signal output pin connect with the input terminal of the filter module.
3. the electronic type odometer system based on Hall sensor as claimed in claim 2, which is characterized in that the filter
Module specifically uses RC filter.
4. the electronic type odometer system based on Hall sensor as claimed in claim 3, which is characterized in that the micro process
Device module specifically uses STC15F series monolithic.
5. the electronic type odometer system based on Hall sensor as claimed in claim 4, which is characterized in that the power supply mould
Block specifically uses 7805 voltage stabilizing chips.
6. the electronic type odometer system based on Hall sensor as claimed in claim 5, which is characterized in that further include level
Conversion module, the input terminal of the level switch module are connect with the signal output pin of the microprocessor module.
7. the electronic type odometer system based on Hall sensor as claimed in claim 6, which is characterized in that the level turns
Change the mold block in, the grid of NMOS transistor TR1 respectively with the one end resistance R1, the one end resistance R2, voltage end VDD1 and NMOS crystal
The grid of pipe TR2 connects, and the source electrode of NMOS transistor TR1 is connect with the resistance R1 other end and serial data line SDA1 respectively,
The drain electrode of NMOS transistor TR1 is connect with the one end resistance R4 and serial data line SDA2 respectively, the source electrode point of NMOS transistor TR2
Do not connect with the resistance R2 other end and clock line SCL1, the drain electrode of NMOS transistor TR2 respectively with the one end resistance R3 and clock line
The other end of SCL2 connection, resistance R3 and resistance R4 are connect with voltage end VDD2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698760.2U CN209605837U (en) | 2019-05-15 | 2019-05-15 | A kind of electronic type odometer system based on Hall sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698760.2U CN209605837U (en) | 2019-05-15 | 2019-05-15 | A kind of electronic type odometer system based on Hall sensor |
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| CN209605837U true CN209605837U (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805231A (en) * | 2020-07-21 | 2020-10-23 | 格力电器（武汉）有限公司 | Electric screwdriver control circuit, electric screwdriver and automatic installation equipment for threaded fastener |
-
2019
- 2019-05-15 CN CN201920698760.2U patent/CN209605837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805231A (en) * | 2020-07-21 | 2020-10-23 | 格力电器（武汉）有限公司 | Electric screwdriver control circuit, electric screwdriver and automatic installation equipment for threaded fastener |
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