CN105403726A - Pulse velocity measurement module - Google Patents
Pulse velocity measurement module Download PDFInfo
- Publication number
- CN105403726A CN105403726A CN201510962865.0A CN201510962865A CN105403726A CN 105403726 A CN105403726 A CN 105403726A CN 201510962865 A CN201510962865 A CN 201510962865A CN 105403726 A CN105403726 A CN 105403726A
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- Prior art keywords
- square
- pulse
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- pin
- signal
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
Abstract
Disclosed is a pulse velocity measurement module. Noise reduction and shaping processing is performed on signals through a photoelectric coupling circuit in a module, standard square-wave signals are obtained, the signals synchronize with frequency divisible reference frequency signals in the module, the pulse number of each speed pulse signal reference frequency is measured, the reference frequency and the square-wave signals are output through a photoelectric coupling circuit, a logic control circuit is energized individually by an isolation power supply, and a PLC or an instrument can arrange interruption of a rising edge or a falling edge of pulses, measures the width of each pulse and accordingly measures the rotating speed of a motor or a rotary device for providing accurate data for operation and control. Since input and output of the circuit provided by the invention completely employ optical coupling isolation, the power supply supplies power in an isolated mode, the whole module has quite high anti-interference capability, all original devices employ an SMD patch technology, and noise is suppressed to the maximum degree. The module employs an XILINX XC95144XL-PQ100 CPLD chip, a logic operation circuit is completely programmed in the chip, the structure is compact, the application is easy, and the module is directly clamped in a DIN guide rail.
Description
Technical field:
The present invention relates to a kind of pulse speed measuring module.
Background technology:
The effect of CBC-MC pulse speed measuring module is exactly the motor for installing the sensors such as rotary encoder, coordinates PLC or instrument accurately to measure the rotating speed of motor in real time;
Be arranged on the sensors such as the rotary encoder on motor or slewing, after equipment rotates, sensor exports square-wave signal to pulse speed measuring module, the width of each pulse can be measured by module, thus measure the rotating speed of motor or slewing, for computing and control provide data accurately.
Summary of the invention:
Technical matters to be solved by this invention is the defect overcoming prior art, provides the width detecting each passage square-wave signal in real time, the board and the 12 passage isolated forms that application is interrupted in real time test the speed.
Technical matters to be solved by this invention realizes by the following technical solutions.
Pulse speed measuring module, is characterized in that:
First by photoelectric coupling circuit in module, noise reduction, Shape correction are carried out to signal, obtain the square-wave signal of standard, this signal with in module can divided reference frequency signal synchronous, measure each speed pulse signal reference frequency umber of pulse,
Reference frequency and square-wave signal are exported by photoelectric coupling circuit, logic control circuit is powered separately by insulating power supply, PLC or instrument can arrange rising edge or the negative edge interruption of pulse, measure the width of each pulse, thus measure the rotating speed of motor or slewing, for computing and control provide data accurately.
Physical circuit is: the square-wave signal that rotary encoder or proximity switch export is through U3PC817D photoelectric coupler isolation, by the removal such as burr and higher hamonic wave, square-wave signal is through the shaping of U274LS244M three-state buffer, make the rising edge of square wave and negative edge steeper, square-wave signal after shaping enters U1XILINXXC95144XL-TQG100-10CCPLD49 pin, U1 internal processes is to signal two, three, four, five, six frequency division, respectively by U1-2,3,4,6,7 pin export, enter U1-1 pin by shorting pin X3;
The oscillating circuit that U4C, U4D bis-unit of SN54HC04J and resistance, electric capacity, crystal oscillator are formed is for counting and synchronously provide clock reference, access U1-35 pin, exported by U1-29,30,32,33,34 through U1 internal circuit frequency division and shaping, enter U1-25 pin by shorting pin X1;
P1 is the insulating power supply that DC24V or DC15V inputs DC5V output, provides the power supply of CBC-MC inside modules circuit working, and M1SP1117-3.3 is the stabilized voltage supply that input DC5V output DC3.3V/800mA powers to U1;
Square-wave signal and clock signal access U1, synchronously exported by U1-50, U1-37 pin through internal circuit, and through U2 three-state buffer shaping access U574LS07D open collector inverse gate driver output, U5C and U5D, U5B and U5E parallel connection uses, and plays and expands stream effect;
The clock of U5 exports access U6HCPL-0302, and square wave exports access U7HCPL-0302 photoelectric coupling circuit, is exported by U6, U7.
Input and output due to this circuit all adopt light lotus root to isolate, and power supply is also isolation power supply, makes whole module have very strong antijamming capability, and whole prototype part adopts SMD paster technique, restraint speckle to greatest extent.This module adopts XILINXXC95144XL-PQ100CPLD chip, and logical operation circuit is all programmed in this chip, compact conformation, is easy to use, and is directly stuck on DIN guide rail.
Accompanying drawing illustrates:
Fig. 1 is principle schematic of the present invention;
The oscillating circuit that Fig. 2 is U4C, U4D bis-unit of SN54HC04J and resistance, electric capacity, crystal oscillator are formed;
Fig. 3 is insulating power supply;
Fig. 4 is U7HCPL-0302 photoelectric coupling circuit.
Embodiment:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Pulse speed measuring module as shown in Figure 1, first by photoelectric coupling circuit in module, noise reduction, Shape correction are carried out to signal, obtain the square-wave signal of standard, this signal with in module can divided reference frequency signal synchronous, measure each speed pulse signal reference frequency umber of pulse
Reference frequency and square-wave signal are exported by photoelectric coupling circuit, logic control circuit is powered separately by insulating power supply, PLC or instrument can arrange rising edge or the negative edge interruption of pulse, measure the width of each pulse, thus measure the rotating speed of motor or slewing, for computing and control provide data accurately.
Physical circuit is: the square-wave signal that rotary encoder or proximity switch export is through U3PC817D photoelectric coupler isolation, by the removal such as burr and higher hamonic wave, square-wave signal is through the shaping of U274LS244M three-state buffer, make the rising edge of square wave and negative edge steeper, square-wave signal after shaping enters U1XILINXXC95144XL-TQG100-10CCPLD49 pin, U1 internal processes is to signal two, three, four, five, six frequency division, respectively by U1-2,3,4,6,7 pin export, enter U1-1 pin by shorting pin X3;
The oscillating circuit that forms of U4C, U4D bis-unit of SN54HC04J and resistance, electric capacity, crystal oscillator is for counting with synchronously provide clock reference as shown in Figure 2, access U1-35 pin, exported by U1-29,30,32,33,34 through U1 internal circuit frequency division and shaping, enter U1-25 pin by shorting pin X1;
P1 is the insulating power supply that DC24V or DC15V inputs DC5V output as shown in Figure 3, provides the power supply of CBC-MC inside modules circuit working, and M1SP1117-3.3 is the stabilized voltage supply that input DC5V output DC3.3V/800mA powers to U1;
Square-wave signal and clock signal access U1 as shown in Figure 4, synchronously exported by U1-50, U1-37 pin through internal circuit, through U2 three-state buffer shaping access U574LS07D open collector inverse gate driver output, U5C and U5D, U5B and U5E parallel connection uses, and plays and expands stream effect;
The clock of U5 exports access U6HCPL-0302, and square wave exports access U7HCPL-0302 photoelectric coupling circuit, is exported by U6, U7.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. pulse speed measuring module, is characterized in that:
First by photoelectric coupling circuit in module, noise reduction, Shape correction are carried out to signal, obtain the square-wave signal of standard, this signal with in module can divided reference frequency signal synchronous, measure each speed pulse signal reference frequency umber of pulse,
Reference frequency and square-wave signal are exported by photoelectric coupling circuit, logic control circuit is powered separately by insulating power supply, PLC or instrument can arrange rising edge or the negative edge interruption of pulse, measure the width of each pulse, thus measure the rotating speed of motor or slewing, for computing and control provide data accurately.
2. according to the pulse speed measuring module described in claim 1, it is characterized in that: physical circuit is: the square-wave signal that rotary encoder or proximity switch export is through U3PC817D photoelectric coupler isolation, by the removal such as burr and higher hamonic wave, square-wave signal is through the shaping of U274LS244M three-state buffer, make the rising edge of square wave and negative edge steeper, square-wave signal after shaping enters U1XILINXXC95144XL-TQG100-10CCPLD49 pin, U1 internal processes is to signal two, three, four, five, six frequency divisions, respectively by U1-2, 3, 4, 6, 7 pin export, U1-1 pin is entered by shorting pin X3,
The oscillating circuit that U4C, U4D bis-unit of SN54HC04J and resistance, electric capacity, crystal oscillator are formed is for counting and synchronously provide clock reference, access U1-35 pin, exported by U1-29,30,32,33,34 through U1 internal circuit frequency division and shaping, enter U1-25 pin by shorting pin X1;
P1 is the insulating power supply that DC24V or DC15V inputs DC5V output, provides the power supply of CBC-MC inside modules circuit working, and M1SP1117-3.3 is the stabilized voltage supply that input DC5V output DC3.3V/800mA powers to U1;
Square-wave signal and clock signal access U1, synchronously exported by U1-50, U1-37 pin through internal circuit, and through U2 three-state buffer shaping access U574LS07D open collector inverse gate driver output, U5C and U5D, U5B and U5E parallel connection uses, and plays and expands stream effect;
The clock of U5 exports access U6HCPL-0302, and square wave exports access U7HCPL-0302 photoelectric coupling circuit, is exported by U6, U7.
3. according to the pulse speed measuring module described in claim 1, it is characterized in that: input and output all adopt light lotus root to isolate, power supply is also isolation power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962865.0A CN105403726A (en) | 2015-12-17 | 2015-12-17 | Pulse velocity measurement module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962865.0A CN105403726A (en) | 2015-12-17 | 2015-12-17 | Pulse velocity measurement module |
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| CN105403726A true CN105403726A (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510962865.0A Pending CN105403726A (en) | 2015-12-17 | 2015-12-17 | Pulse velocity measurement module |
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| CN (1) | CN105403726A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526336A (en) * | 2016-12-02 | 2017-03-22 | 哈尔滨工业大学 | Time string measuring method |
| CN112904043A (en) * | 2021-03-24 | 2021-06-04 | 中北大学 | Impedance transformation target fragment speed measurement system and test method thereof |
| CN115811186A (en) * | 2022-12-20 | 2023-03-17 | 滁州市博创电气有限公司 | CBC-MC module circuit and method |
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| CN1287272A (en) * | 1999-09-03 | 2001-03-14 | 振辰科技股份有限公司 | DC motor tachometer |
| CN1591323A (en) * | 2003-09-04 | 2005-03-09 | 台达电子工业股份有限公司 | Programmable logic controller with auxiliary processing unit |
| CN101217260A (en) * | 2008-01-18 | 2008-07-09 | 张振武 | A slip control digital intelligent speed regulation and system of motor without speed transducer |
| CN201146481Y (en) * | 2008-01-18 | 2008-11-05 | 上海普电节能科技有限公司 | Medium-voltage motor slip-control digital intelligence speed-regulating device without speed sensor |
| CN101550877A (en) * | 2009-05-15 | 2009-10-07 | 中国兵器工业集团第七○研究所 | Conversion device of diesel engine crankshaft from multi-tooth to tooth-deficiency signal |
| CN102495224A (en) * | 2011-12-06 | 2012-06-13 | 泰豪科技股份有限公司 | Method for multiplying frequency of power supply |
| CN103439526A (en) * | 2013-08-28 | 2013-12-11 | 宁波南车时代传感技术有限公司 | Optical fiber type speed sensor for rail transit |
| CN204302369U (en) * | 2014-10-09 | 2015-04-29 | 安徽工程大学 | A kind of multi-functional logic test pen |
| CN104601063A (en) * | 2015-02-05 | 2015-05-06 | 王天甜 | High-voltage high-power stepping motor controller |
| CN204392210U (en) * | 2015-03-03 | 2015-06-10 | 中国海洋石油总公司 | A kind of code signal change-over circuit |
| CN204575671U (en) * | 2015-03-27 | 2015-08-19 | 西安航空制动科技有限公司 | A kind of change-over circuit of wheel spin-up transducer |
-
2015
- 2015-12-17 CN CN201510962865.0A patent/CN105403726A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287272A (en) * | 1999-09-03 | 2001-03-14 | 振辰科技股份有限公司 | DC motor tachometer |
| CN1591323A (en) * | 2003-09-04 | 2005-03-09 | 台达电子工业股份有限公司 | Programmable logic controller with auxiliary processing unit |
| CN101217260A (en) * | 2008-01-18 | 2008-07-09 | 张振武 | A slip control digital intelligent speed regulation and system of motor without speed transducer |
| CN201146481Y (en) * | 2008-01-18 | 2008-11-05 | 上海普电节能科技有限公司 | Medium-voltage motor slip-control digital intelligence speed-regulating device without speed sensor |
| CN101550877A (en) * | 2009-05-15 | 2009-10-07 | 中国兵器工业集团第七○研究所 | Conversion device of diesel engine crankshaft from multi-tooth to tooth-deficiency signal |
| CN102495224A (en) * | 2011-12-06 | 2012-06-13 | 泰豪科技股份有限公司 | Method for multiplying frequency of power supply |
| CN103439526A (en) * | 2013-08-28 | 2013-12-11 | 宁波南车时代传感技术有限公司 | Optical fiber type speed sensor for rail transit |
| CN204302369U (en) * | 2014-10-09 | 2015-04-29 | 安徽工程大学 | A kind of multi-functional logic test pen |
| CN104601063A (en) * | 2015-02-05 | 2015-05-06 | 王天甜 | High-voltage high-power stepping motor controller |
| CN204392210U (en) * | 2015-03-03 | 2015-06-10 | 中国海洋石油总公司 | A kind of code signal change-over circuit |
| CN204575671U (en) * | 2015-03-27 | 2015-08-19 | 西安航空制动科技有限公司 | A kind of change-over circuit of wheel spin-up transducer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526336A (en) * | 2016-12-02 | 2017-03-22 | 哈尔滨工业大学 | Time string measuring method |
| CN106526336B (en) * | 2016-12-02 | 2019-01-08 | 哈尔滨工业大学 | A kind of time string measurement method |
| CN112904043A (en) * | 2021-03-24 | 2021-06-04 | 中北大学 | Impedance transformation target fragment speed measurement system and test method thereof |
| CN115811186A (en) * | 2022-12-20 | 2023-03-17 | 滁州市博创电气有限公司 | CBC-MC module circuit and method |
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Application publication date: 20160316 |
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