CN201993376U - Rotating speed measuring device - Google Patents
Rotating speed measuring device Download PDFInfo
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- CN201993376U CN201993376U CN2011200213067U CN201120021306U CN201993376U CN 201993376 U CN201993376 U CN 201993376U CN 2011200213067 U CN2011200213067 U CN 2011200213067U CN 201120021306 U CN201120021306 U CN 201120021306U CN 201993376 U CN201993376 U CN 201993376U
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Abstract
The utility model belongs to the field of intellectualized control, and specifically relates to a rotating speed measuring device based on an HCS12 one-chip microcomputer. The device includes a control unit, a power source management unit, a sensor unit, a signal processing unit, and a display unit. The control unit is connected with the power source management unit, the sensor unit is connected with the control unit and the power source management unit, and the sensor unit is connected with a to-be-measured member. The signal processing unit is connected with the control unit and the power source management unit, and the display unit is connected with the control unit and the power source management unit. The device has the characteristics of convenient manufacturing, simple circuit design, rapid response, precise control, low cost, etc.
Description
Technical field
The utility model belongs to intelligent control field, is specifically related to a kind of rotation-speed measuring device.
Background technology
The extensive application of observation and control technology aspect tachometric survey makes the phase related control information of acquisition quick more and accurate.The now main rotation-speed measuring device that uses mainly contains centrifugal rotation-speed measuring device and magnetic rotation-speed measuring device.Wherein centrifugal rotation-speed measuring device complex structure is difficult for the strange land and installs; The magnetic rotation-speed measuring device is installed needs the certain distance flexible axle, and apart from too far away, flexible axle damages easily.
Summary of the invention
At the defective or the deficiency of prior art, the purpose of this utility model is to provide a kind of rotation-speed measuring device based on the MC9S12XS128 single-chip microcomputer.To solve the tachometric survey and the real-time demonstration problem of rotation class part (for example bearing class part).This apparatus structure is simple and can install in the strange land, need not flexible axle, is not subjected to the influence of external force simultaneously.
For realizing above-mentioned technical assignment, the utility model is taked following technical solution:
Substantially the signal of gathering by sensor unit that is contemplated that of the present utility model, then with Input Control Element after this signal Processing, the pulse totalizer of control module is opened, umber of pulse by counting a period of time, obtain the rotating speed of measured bearing class part, show rotating speed by display unit at last, realize tachometric survey.Concrete technical scheme is as follows:
A kind of rotation-speed measuring device, it is characterized in that, this device comprises control module, Power Management Unit, sensor unit, signal processing unit and display unit, described control module is connected with Power Management Unit, described sensor unit is connected with Power Management Unit with control module, and this sensor unit is connected with tested member, and described signal processing unit is connected with Power Management Unit with control module, and described display unit is connected with Power Management Unit with control module.
Described control module includes the MC9S12XS128 single-chip microcomputer at least.
Described sensor unit includes Omron photoelectric encoder E6B2-CWZ6Cv at least.
Described signal processing unit comprises that at least 7 have 4LS74 chip and 74LS86 chip, and wherein the 74LS74 chip is connected with sensor unit, and the 74LS86 chip is connected with control module, and the 74LS74 chip is connected with the 74LS86 chip.
Described display unit includes four groups of LED lamps at least, and every group of LED lamp has seven LED diodes, and seven LED diodes are connected with control module respectively.
Described power supply unit includes Voltage stabilizing module at least, and described Voltage stabilizing module is LT1084-5.
Described power supply unit also comprises a nickel-cadmium chargeable battery.
Described power supply unit, control module, signal processing unit and display unit are integrated on the circuit board.
The basic functional principle of device of the present utility model is: the rotary speed information of the tested member of gathering according to sensor unit, signal processing unit is the AB phase signals of autobiography sensor cell in the future, be transformed to Transistor-Transistor Logic level, with this level signal Input Control Element, control module unbalanced pulse totalizer, institute's input pulse is added up, and read umber of pulse in a period of time, be scaled the rotating speed in this section period, thereby obtain to be divided into the rotating speed of unit, show by display unit, control module repeats this control operation.This device has easy to make, and circuit design is simple, response fast, precise control, characteristics such as cost is low.
Description of drawings
Fig. 1 is an apparatus structure synoptic diagram of the present utility model;
Fig. 2 is the principle of work synoptic diagram of power supply unit;
Fig. 3 is the signal processing unit schematic diagram;
Fig. 4 is display unit schematic diagram and display unit synoptic diagram, and wherein (a) is that display unit synoptic diagram, (b) are the display unit schematic diagram;
Fig. 5 is the pin wiring schematic diagram of control module.
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.
Embodiment
The utility model adopts the MC9S12XS128 single-chip microcomputer as control module, the signal that the integrated pulse totalizer in inside of main application controls unit is imported signal processing unit carries out step-by-step counting, obtain the revolution of this section period, thereby obtain rotating speed, show in real time by display unit.Detailed process is caught the rotating speed of tested part through photoelectric encoder, tach signal is transformed to electronic signal, with the input end of the pulse totalizer module of this electric signal Input Control Element, control module detects this signal, its pulse totalizer carries out pulse accumulation, calculates rotating speed, shows rotating speed.The method principle is correct, and algorithm is simple, and the gained result is accurate.Can accurately record rotating speed and real-time display result.
With reference to Fig. 1, rotation-speed measuring device comprises control module, Power Management Unit, sensor unit, signal processing unit and display unit, described control module is connected with Power Management Unit, described sensor unit is connected with Power Management Unit with control module, and this sensor unit is connected with tested member, described signal processing unit is connected with Power Management Unit with control module, and described display unit is connected with Power Management Unit with control module.
Described control module comprises a MC9S12XS128 single-chip microcomputer at least.16 pulse totalizer and enhancement mode seizure timer module that this single-chip microcomputer is inner integrated, 16 pulse totalizer has detection accurately, it is wide to detect the umber of pulse scope, can reach 65536, is omission false retrieval situation to occur when detecting pulse with this pulse totalizer.This monolithic can be real-time the pulse signal that sent of received signal processing unit, and these pulses are carried out accumulation process, (50ms) reads the umber of pulse of this section period in each time period simultaneously, acquisition is at the rotating speed of this section in the time, this rotating speed being scaled with min is the rotating speed of unit again, show by display unit, realize tachometric survey.
Described sensor unit comprises an Omron photoelectric encoder E6B2-CWZ6Cv at least.This Omron scrambler E6B2-CWZ6Cv is open collector output, resolution is 1000P/R, exports two phase signals, is respectively A and B mutually, AB phase phase phasic difference 90+45 degree, required power supply voltage range is DC5-12V, the highest response frequency 100KHZ, and detent torque is 0.98Nm, after the A phase B phase signals input signal processing unit processes, be transformed to Transistor-Transistor Logic level, Input Control Element is for the pulse totalizer count pulse.
Described signal processing unit includes 74LS74 chip and 74LS86 chip at least, and the 74LS74 chip is connected with the 74LS86 chip, and wherein the 74LS74 chip is connected with sensor unit, and the 74LS86 chip is connected with control module.
Described display unit includes four groups of LED lamps at least, and every group of LED lamp has seven LED diodes, and seven LED diodes are connected with control module respectively.Seven LED diodes are driven by seven IO mouths of control module respectively, and when IO mouth pin was output as high level, corresponding LED diode was lighted, four groups of LED display lamps being made up of 28 diodes show the kilobit of rotating speeds, hundred, ten, individual position realizes that measured rotating speed shows in real time.Can in time understand the part rotating speed for the user, understand the part operational situation, reach real-time testing goal.
Described power supply unit includes Voltage stabilizing module at least, and described Voltage stabilizing module has LT1084-5 at least.All by the power supply unit power supply, LT1084-5 has pressure stabilization function,＞7 volts DC voltage can be become 5 volts in other four unit, gives sensor unit, control module, display unit power supply.
Described power supply unit also comprises a nickel-cadmium chargeable battery.
Described power supply unit, control module, signal processing unit and display unit are integrated on the circuit board.
Embodiment:
With reference to Fig. 1, device in the present embodiment comprises control module, Power Management Unit, sensor unit, signal processing unit and display unit, described control module is connected with Power Management Unit, described sensor unit is connected with Power Management Unit with control module, and this sensor unit is connected with tested member, described signal processing unit is connected with Power Management Unit with control module, and described display unit is connected with Power Management Unit with control module.Power Management Unit also comprises one 7.2 volts of nickel-cadmium chargeable batteries.
With reference to Fig. 2, in the power supply unit Voltage stabilizing module, pin ground connection in the middle of the LT1084-5,7.2 volts of positive sources of input termination, input end is through 330 microfarad capacity earths, and output terminal is through 330 microfarad capacity earths, and output terminal is 5 volts, give control module, sensor unit, signal processing unit power supply.
Sensor unit is made up of Omron photoelectric encoder E6B2-CWZ6Cv, wherein scrambler external cabling: VCC connects Power Management Unit+5V power supply, GND ground connection, the pin of A phase line connects the A pin of signal processing unit, the pin of B phase line connects the B pin of signal processing unit, and the signal of A and B is through signal processing unit processes.
With reference to Fig. 3, the schematic diagram of signal processing unit.The A phase signals of sensor unit is through R2(3K ohm) ground connection, 1 pin of the 74LS74 of A phase signals input simultaneously chip, the B phase signals of sensor unit is through R3(3K ohm) ground connection, 3 pin of the 74LS74 of B phase signals input simultaneously chip, 2 pin of 74LS74 chip and 4 pin are imported 1 pin and 2 pin of 74LS86 chip respectively, 14 pin of 74LS86 connect+5V, 7 pin ground connection, and 3 pin output signals connect the T7 mouth of control module.
With reference to Fig. 4, form by display unit schematic diagram and display unit synoptic diagram.In the display unit schematic diagram, (PD0-PD6) connects the forward end of seven LED lamps, the negative end ground connection of seven LED lamps respectively to the PD mouth in the IO mouth of control module.Display unit has four groups of LED display lamps to be formed, and every group of seven IO mouths that need connect control module are respectively PA mouth (PA0-PA6), (PB0-PB6), (PM0-PM6), these four groups of LED display lamps show the kilobit of rotating speed respectively to the PM mouth to the PB mouth, hundred, ten, individual position.
In the display unit synoptic diagram, seven LED diodes are formed the character display of a position, when seven IO mouths of PD0-PD6 are exported different signals, this character can show from 0 to 9 different numeral, output by control module control IO mouth signal, character shows in each unit thereby control, to show rotating speed.
With reference to Fig. 5, the pin elementary diagram of control module.Sensor signal is passed to the PT7 pin of control module after treatment, the VCC of control module connects+5V, GND connects the ground end of Power Management Unit, have four groups of IO mouths and connect the LED diode, be respectively the A mouth, the B mouth, the M mouth, the D mouth, when control module obtains pulse digit N1 at t1 in the time, can get the rotating speed that is obtained in the t1 time is N1/1000, and then the rotating speed of the tired part of measured bearing is V=N1/(1000*t1) unit for rpm, control module shows by four display lamp V by display digit.
Claims (8)
1. rotation-speed measuring device, it is characterized in that, this device comprises control module, Power Management Unit, sensor unit, signal processing unit and display unit, described control module is connected with Power Management Unit, described sensor unit is connected with Power Management Unit with control module, and this sensor unit is connected with tested member, and described signal processing unit is connected with Power Management Unit with control module, and described display unit is connected with Power Management Unit with control module.
2. rotation-speed measuring device as claimed in claim 1 is characterized in that described control module includes the MC9S12XS128 single-chip microcomputer at least.
3. rotation-speed measuring device as claimed in claim 1 is characterized in that, described sensor unit includes Omron photoelectric encoder E6B2-CWZ6Cv at least.
4. rotation-speed measuring device as claimed in claim 1, it is characterized in that described signal processing unit includes 74LS74 chip and 74LS86 chip at least, wherein the 74LS74 chip is connected with sensor unit, the 74LS86 chip is connected with control module, and the 74LS74 chip is connected with the 74LS86 chip.
5. rotation-speed measuring device as claimed in claim 1 is characterized in that, described display unit includes four groups of LED lamps at least, and every group of LED lamp has seven LED diodes, and seven LED diodes are connected with control module respectively.
6. rotation-speed measuring device as claimed in claim 1 is characterized in that described power supply unit includes Voltage stabilizing module at least, and described Voltage stabilizing module is LT1084-5.
7. rotation-speed measuring device as claimed in claim 6 is characterized in that described power supply unit also comprises a nickel-cadmium chargeable battery.
8. as the described rotation-speed measuring device of the arbitrary claim of claim 1-7, it is characterized in that described power supply unit, control module, signal processing unit and display unit are integrated on the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200213067U CN201993376U (en) | 2011-01-24 | 2011-01-24 | Rotating speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200213067U CN201993376U (en) | 2011-01-24 | 2011-01-24 | Rotating speed measuring device |
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|---|---|
| CN201993376U true CN201993376U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200213067U Expired - Fee Related CN201993376U (en) | 2011-01-24 | 2011-01-24 | Rotating speed measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604943A (en) * | 2013-11-15 | 2014-02-26 | 中科恒源科技股份有限公司 | A wind driven generator rotating speed measurement circuit |
| GB2505261A (en) * | 2012-07-05 | 2014-02-26 | Univ Shanghai Jiaotong | Real-Time Rotation Speed Detection Module for Servo Motors |
-
2011
- 2011-01-24 CN CN2011200213067U patent/CN201993376U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2505261A (en) * | 2012-07-05 | 2014-02-26 | Univ Shanghai Jiaotong | Real-Time Rotation Speed Detection Module for Servo Motors |
| GB2505261B (en) * | 2012-07-05 | 2018-08-29 | Univ Shanghai Jiaotong | A real-time rotation speed detection module for servo motors based on FPGA |
| CN103604943A (en) * | 2013-11-15 | 2014-02-26 | 中科恒源科技股份有限公司 | A wind driven generator rotating speed measurement circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120124 |