CN205283453U - Double - circuit motor running condition monitoring module - Google Patents
Double - circuit motor running condition monitoring module Download PDFInfo
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- CN205283453U CN205283453U CN201520976723.5U CN201520976723U CN205283453U CN 205283453 U CN205283453 U CN 205283453U CN 201520976723 U CN201520976723 U CN 201520976723U CN 205283453 U CN205283453 U CN 205283453U
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Abstract
The utility model relates to a double - circuit motor running condition monitoring module, including power conversion module, signal acquisition module, obs core control ware module, five parts of signal conditioning module and information exchange module, power conversion module carries out the required DC12V steady voltage output conversion of PCB by power module, the signal acquisition module includes that the motor rotates pulse signal acquisition and motor surface temperature signal acquisition, obs core control ware module chooses for use C8051F006 -48TQFP to be the core processor, signal conditioning module including the gain enlarge, current output and switch quantity output, information interaction module adopts the interrupt mode to set up with mutual module parameter by the core processor. The beneficial effects of the utility model are that: simple structure, simple to operate, sexual valence relative altitude, function unit divides and to reduce according to system integration demand, and be convenient for and systems such as industry PLC, DCS carry out integration, has good application promotion and be worth.
Description
Technical field
The utility model relates to the solution of the single channel motor rotation condition monitoring that a kind of function can be reduced, cost performance is high, particularly relates to a kind of two-way motor rotation state monitoring module, belongs to electric works field.
Background technology
Nowadays, along with the raising day by day of standard of living, people are more and more extensive to the use of motor, more and more rely on, in real life, to maintenance and the monitoring of motor using state, are most important. Foundry's Electrified Transmission equipment is applied as master with stepper-motor, load motor and three-phase alternating current motor, for non-frequency or servo applications, the conventional way of the detection actual running condition of motor itself or parameter is proximity switch, rotating transformer, photoelectric coding device. Proximity switch with pulse export form detect in low-speed running whether and running speed, but the state-detection within a turn is helpless, then can increase proximity switch number and mechanical erection difficulty to segmentation; Rotating transformer exports form mainly with 0��10V voltage, incremental optical-electricity encoder exports form detection motor speed with pulse, absolute optical encoder detects motor revolution by correspondence, hybrid grating encoder is in conjunction with increment type and absolute optical encoder function, rotating transformer and photoelectric coding device price height and mechanical erection difficulty are big, especially install narrow place, space. The rare display rotating speed directly perceived of all conventional sense ways and motor temperature corresponding data, be unfavorable for that scene is patrolled and examined and troubleshooting. For this reason, how a kind of two-way motor rotation state monitoring module more intuitively is provided, is the object of the utility model research.
Practical novel content
For overcoming the deficiencies in the prior art, the utility model provides a kind of two-way motor rotation state monitoring module, adopts the mounted temperature sensor of magnetic power meter, comprises LED liquid crystal display, is convenient to display data directly perceived and integrated, installs easy, cost performance height.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of two-way motor rotation state monitoring module, comprises power transfer module, signal acquisition module, core controller module, Signal-regulated kinase and information exchange module;
Described power transfer module carries out the DC12V voltage stabilizing needed for PCB by power supply module to export conversion; ; Described power supply module selects ZY2412WHBBD-3W; Described Power convert adopts three terminal regulator that DC12V is converted to the DC5V power supply needed for temperature sensor, and rear class power conversion chip CAT6219 provides stable DC3.3V power supply for monitoring modular; Described three terminal regulator selects LM7805;
Described signal acquisition module comprises electric machine rotation pulse signal acquisition and motor surface temperature signal collection; Described electric machine rotation pulse signal acquisition larynx band photoelectric code disk is anchored on motor shaft or joins axle to tie, code-disc hollow out and solid edge edge portion are placed between the groove of fluted body optocoupler, by arranging code-disc hollow out number, motor pulse output frequencies under specified speed is made to be less than or equal to 1KHz; Described optocoupler adopts fluted body optocoupler EE-SX97; Described pulse-repetition direct ratio is in motor rotating speed; Described motor surface temperature signal collection adopts magnetic force Surface Mount temperature sensor to be that magnet steel adsorption type is installed, strong interference immunity, it is achieved to the measurement of motor surface temperature; BT-3 (DS18B20) selected by described magnetic force Surface Mount temperature sensor; ;
Described core controller module selects C8051F006-48TQFP to be core processing device; Described C8051F006-48TQFP core processing device port IO crossbar configuration also possesses 5V voltage tolerant, built-in programming OSC, I2C, SPI, UART, TEMP sensing, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC (12bit, 100ksps), 2 passage DAC (12bit, 100ksps), 2 channel voltage comparers, multi-source reset and minimum power consumption system support content with funtion design and low-power consumption demand; Described C8051F006-48TQFP core processing device adopts 3.3V single power supply (2.7V ~ 3.6V);
Described Signal-regulated kinase comprises gain amplification, electric current exports and output switch parameter; Described gain is amplified employing two-way instrument amplifier INA2128 and 0 ~ 3.3V is amplified to industrial control standard voltage 0��10V, its gain calculates and adopts formula Ga=1+ (50K ��/R6), Gb=1+ (50K ��/R7), described R6 and R7 to be the adjustable resistance in described two-way instrument amplifier INA2128; It is by adjusting variable resistor R6 and R7 respectively that the described gain voltage upper limit is consistent; It is adopt non-isolated series of signals conditioning module ZCM4561S that 0��10V voltage signal is converted to 4��20mA electric current signal to export that described electric current exports, carrying out output gain adjustment by R12 and R13, described non-isolated series of signals conditioning module selects ZCM4561S; Described R12 and R13 is the adjustable resistance in described non-isolated series of signals conditioning module ZCM4561S; Described output switch parameter refers in external power source situation, differentiates situation according to whether too high electric machine rotation and motor surface temperature be, adopts light relay TLP3554 to provide the warning load up to 2.5A to export;
Described information interaction module adopts C8051F006-48TQFP core processing device to adopt interruption mode to adopt pulse signal frequency to be converted to, and analog voltage signal (0 ~ 3.3V) corresponding to rotating speed exports, One Wire communication protocol collection and change DS18B20 temperature sensing data, SPI communication agreement carries out LCD motor data instruction, UART chip SP3485 carries out ModbusRTU communication, I2C communication protocol is built-in with reset chip CAT1025SI EEPROM carries out module parameter and arranges with alternately; The setting of described module parameter comprises motor specified speed, photoelectric code disk hollow out number, electric machine rotation whether judgement threshold, the too high alarm threshold of motor temperature, serial mailing address.
Further, described Power convert optimum configurations width pressure input range DC9��36V, efficiency of conversion 79%, working temperature-40��85 DEG C, overall loading 250mA, has the functions such as short-circuit protection, and sustainable short circuit, self-recoverage, meet module application.
Further, motor specified speed 3600rpm, larynx band photoelectric code disk hollow out number is taken as 16, and corresponding output pulse-repetition is 960Hz.
Further, described magnetic force Surface Mount temperature sensor BT-3 (DS18B20) temperature-measuring range-55��125 DEG C, when-10��85 DEG C, precision is �� 0.5 DEG C, supports " one-wire bus " interface and multiple spot networking function, namely multiple temperature sensor can and hang together on unique three lines.
Further, described Power convert adopts three terminal regulator that DC12V is converted to the DC5V power supply needed for temperature sensor, and rear class power conversion chip CAT6219 provides stable DC3.3V power supply for monitoring modular.
Further, each is tall and big in 2.1mm for described hollow out, is wider than 1mm, thick is greater than 0.2mm, and hollow out interval is greater than 1mm.
Further, built-in programming OSC, I2C, SPI, UART, TEMP sensing of described core processing device C8051F006-48TQFP, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC (12bit, 100ksps), 2 passage DAC (12bit, 100ksps), 2 channel voltage comparers, multi-source reset and minimum power consumption system support.
The beneficial effects of the utility model are: structure is simple, easy for installation, cost performance height, and function part can be reduced according to system integration demand, are convenient to carry out Seamless integration-with the system such as industrial PLC, DCS, have good application and popularization value.
Accompanying drawing explanation
Fig. 1 is system architecture figure of the present utility model;
Fig. 2 (a) is the utility model larynx band photoelectric code disk structure iron;
Fig. 2 (b) is the utility model larynx band photoelectric code disk and fluted body optocoupler combination schematic diagram;
Fig. 3 is the utility model optocoupler pulse signal acquisition circuit analysis chart;
Fig. 4 is voltage gain circuit analysis chart;
Fig. 5 is that voltage signal is converted to electric current signal circuit analysis chart;
Fig. 6 is switching value output circuit analysis chart;
Fig. 7 is for resetting and parameter configuration eeprom circuit analysis chart;
Fig. 8 is working order software flow figure of the present utility model, wherein:
Fig. 8 (a) is the utility model master routine initialize flow process;
Fig. 8 (b) and (c) are external interrupt flow process;
Fig. 8 (d) and (e) are timer interruption flow process;
Fig. 8 (f) Modbus communication disruption schema.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with specific embodiment, the utility model is described in further detail.
Below in conjunction with accompanying drawing 1-8, the utility model is further analyzed:
As shown in Figure 1,1. the function composition of monitoring modular described in the utility model is mainly following five parts: power transfer module, signal acquisition module, core controller module, Signal-regulated kinase and information interaction module.
Power transfer module adopts ZY2412WHBBD-3W power supply module to carry out the DC12V voltage stabilizing needed for PCB and exports conversion, wide pressure input range DC9��36V, efficiency of conversion 79%, working temperature-40��85 DEG C, overall loading 250mA, having the functions such as short-circuit protection, sustainable short circuit, self-recoverage, meet module application; Adopting three terminal regulator LM7805 that DC12V is converted to the DC5V power supply needed for temperature sensor, rear class power conversion chip CAT6219 provides stable DC3.3V power supply for monitoring modular.
As shown in Figure 2 and Figure 3, signal acquisition module comprises:
1. electric machine rotation pulse signal acquisition
Larynx band photoelectric code disk is anchored on motor shaft or joins axle and tie, code-disc hollow out and solid edge edge portion are placed between optocoupler EE-SX97 groove, by arranging code-disc hollow out number (hollow out size and interval must not be less than Fig. 3 illustrated dimension), motor pulse output frequencies under specified speed is made to be less than or equal to 1KHz (pulse-repetition direct ratio is in motor rotating speed). As: motor specified speed 3600rpm (conversion is 60rps), then larynx band photoelectric code disk hollow out number is taken as 16 (1000/60=16.7), and corresponding output pulse-repetition is 960Hz.
Fluted body optocoupler possesses 7 kinds of different installation forms, and convenient scene is fixed according to installation space and angle. TLP521-1 is adopted to carry out signal isolation and voltage matches.
2. motor surface temperature signal gathers
Adopt magnetic force Surface Mount temperature sensor BT-3 (DS18B20) for the installation of magnet steel adsorption type, strong interference immunity, it is achieved to the measurement of motor surface temperature. Support " one-wire bus " interface and multiple spot networking function, namely multiple temperature sensor can and hang together on unique three lines. Temperature-measuring range-55��125 DEG C, when-10��85 DEG C, precision is �� 0.5 DEG C.
Core controller module take C8051F006-48TQFP as core processing device, 3.3V single power supply (2.7V ~ 3.6V), port IO can crossbar configuration and possess 5V voltage tolerant, built-in programmable OSC, I2C, SPI, UART, TEMP sensing, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC (12bit, 100ksps), 2 passage DAC (12bit, 100ksps), 2 channel voltage comparers, multi-source resets and the design of the content with funtion such as minimum power consumption system support and low-power consumption demand.
Signal-regulated kinase comprises:
1. gain is amplified
Adopt two-way instrument amplifier INA2128 that 0 ~ 3.3V is amplified to industrial control standard voltage 0��10V, its gain calculates and adopts formula Ga=1+ (50K ��/R6) (with managing Gb=1+ (50K ��/R7)), by adjusting variable resistor R6 and R7 respectively, upper voltage limit before and after gain is consistent, such as Fig. 4.
2. 4��20mA electric current exports
Adopt non-isolated series of signals conditioning module ZCM4561S, 0��10V voltage signal is converted to 4��20mA electric current signal and exports, carry out output gain adjustment by adjustable resistance R12 and R13, such as Fig. 5.
3. output switch parameter
In external power source situation, differentiate situation according to whether too high electric machine rotation and motor surface temperature be, adopt light relay TLP3554 to provide the warning load up to 2.5A to export, such as Fig. 6.
Information interaction module comprises:
Core processing device adopts interruption mode acquisition pulse signal frequency, is converted to analog voltage signal (DC0 ~ 3.3V) corresponding to rotating speed and exports; Adopt One Wire communication protocol collection and change DS18B20 temperature sensing data; SPI communication agreement is adopted to carry out LCD motor data instruction; UART chip SP3485 is adopted to carry out ModbusRTU communication; The EEPROM adopting I2C communication protocol and reset chip CAT1025SI built-in carries out module parameter whether (motor specified speed, photoelectric code disk hollow out number, electric machine rotation judgement threshold, the too high alarm threshold of motor temperature, serial mailing address) and arranges with alternately; Such as Fig. 7.
As shown in Figure 8, being software flow of the present utility model: after monitoring modular master routine initial configuration, each function demand mainly adopts interruption mode to realize.
Initialize: after core processing device C8051F006 electrification reset, carries out inner 16MHz crystal oscillator clock configuration. After time delay is stable, to chip pin function distribution, IO input and output feature, SPI/I2The built-in peripheral functionality such as C/UART communication, timer 0/1 are interrupted, INT0/1 positive rise interruption configure, and this walks enable need of all interruptions and closes, in case program fleet. Read in the built-in EEPROM of reset chip the data stored afterwards and configure peripheral functionality parameter, after each interruption is enable, then enter dormancy pattern, to reduce module power consumption.
External interrupt: receive the pulse signal after isolation coupling, often enter and once interrupt, the static variable of corresponding motor pulses counting adds 1.
Timer 3 interrupts: heavy cartridges 16 timers (beat is set to 10ms) automatically, and static time accumulated value of having no progeny in every time adds 1, and after meter is spaced apart 1s to 99, time accumulated value resets. Respectively current value and the history value of motor 1 with motor 2 pulse counting are got difference, converse the current rotating speed of motor according to photoelectric code disk hollow out number, export corresponding analog voltage according to specified speed. If current rotating speed is greater than electric machine rotation whether judgement threshold, then light relay action.
Timer 4 interrupts: heavy cartridges 16 timers (beat is set to 10ms) automatically, and static time accumulated value of having no progeny in every time adds 1, and after meter is spaced apart 100ms to 9, time accumulated value resets. Motor surface temperature value is read by 1-wire bus agreement. If Current Temperatures is greater than the too high alarm threshold of motor temperature, then light relay action. Carry out the renewal (Modbus mailing address, the current rotating speed of motor 1 and motor 2, specified speed, the per-cent accounting for specified speed, motor surface temperature etc.) of LCD human-machine interactive information afterwards.
Modbus communication disruption: when first time powers on, acquiescence 9600bps, without verification, 8 bit data positions, 1 stop bit, mailing address is 1, and user can configure according to real needs, the data of configuration are saved in the built-in EEPROM of reset chip, power-off restarting or configuration take-effective after pressing hand-reset key. Carrying out data length parsing according to data write or reading order, receive after CRC verifies and judge, the correct feedback that then gives of verification exports.
In sum, monitoring modular project organization described in the utility model is terse, utilizes larynx band photoelectric code disk, fluted body optocoupler and the mounted temperature sensor of magnetic power meter to provide a kind of and install simplicity, two-way motor rotation condition monitoring solution that cost performance is high. Module has pulse, voltage, electric current, light relay switching value, the multiple mode signal output such as LCD, ModbusRTU, each function part can be reduced according to system integration demand, and conveniently can carry out Seamless integration-with the system such as industrial PLC, DCS, there is good application and popularization value.
Technical scheme the application provided above is described in detail, and applies embodiment herein and the principle of the application and enforcement mode has been set forth, illustrating just for helping the method understanding the application and core concept thereof of above embodiment; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (6)
1. a two-way motor rotation state monitoring module, it is characterised in that: comprise power transfer module, signal acquisition module, core controller module, Signal-regulated kinase and information exchange module;
Described power transfer module carries out the DC12V voltage stabilizing needed for PCB by power supply module to export conversion; ; Described power supply module selects ZY2412WHBBD-3W; Described three terminal regulator selects LM7805; Described signal acquisition module comprises electric machine rotation pulse signal acquisition and motor surface temperature signal collection; Described electric machine rotation pulse signal acquisition larynx band photoelectric code disk is anchored on motor shaft or joins axle to tie, code-disc hollow out and solid edge edge portion are placed between the groove of fluted body optocoupler, by arranging code-disc hollow out number, motor pulse output frequencies under specified speed is made to be less than or equal to 1KHz; Described optocoupler adopts fluted body optocoupler EE-SX97; Described pulse-repetition direct ratio is in motor rotating speed; Described motor surface temperature signal collection adopts magnetic force Surface Mount temperature sensor to be that magnet steel adsorption type is installed, strong interference immunity, it is achieved to the measurement of motor surface temperature; Described magnetic force Surface Mount temperature sensor model selects BT-3, DS18B20; Described core controller module selects C8051F006-48TQFP to be core processing device; Described C8051F006-48TQFP core processing device port IO crossbar configuration also possesses 5V voltage tolerant; Described C8051F006-48TQFP core processing device adopts 3.3V single power supply; The voltage range of described single power supply selects 2.7V ~ 3.6V; Described Signal-regulated kinase comprises gain amplification, electric current exports and output switch parameter; Described gain is amplified employing two-way instrument amplifier INA2128 and 0 ~ 3.3V is amplified to industrial control standard voltage 0��10V, its gain calculates and adopts formula Ga=1+ (50K ��/R6), Gb=1+ (50K ��/R7), described R6 and R7 to be the adjustable resistance in described two-way instrument amplifier INA2128; It is by adjusting variable resistor R6 and R7 respectively that the described gain voltage upper limit is consistent; It is adopt non-isolated series of signals conditioning module ZCM4561S that 0��10V voltage signal is converted to 4��20mA electric current signal to export that described electric current exports, carrying out output gain adjustment by R12 and R13, described non-isolated series of signals conditioning module selects ZCM4561S; Described R12 and R13 is the adjustable resistance in described non-isolated series of signals conditioning module ZCM4561S; Described output switch parameter refers in external power source situation, differentiates situation according to whether too high electric machine rotation and motor surface temperature be, adopts light relay TLP3554 to provide the warning load up to 2.5A to export; Described information interaction module adopts C8051F006-48TQFP core processing device to adopt interruption mode to adopt pulse signal frequency to be converted to, and analog voltage signal (0 ~ 3.3V) corresponding to rotating speed exports, One Wire communication protocol collection and change DS18B20 temperature sensing data, SPI communication agreement carries out LCD motor data instruction, UART chip SP3485 carries out ModbusRTU communication, I2C communication protocol is built-in with reset chip CAT1025SI EEPROM carries out module parameter and arranges with alternately; The setting of described module parameter comprises motor specified speed, photoelectric code disk hollow out number, electric machine rotation whether judgement threshold, the too high alarm threshold of motor temperature, serial mailing address.
2. a kind of two-way motor rotation state monitoring module according to claim 1, it is characterised in that: the optimum configurations width pressure input range DC9��36V of described power transfer module, efficiency of conversion 79%, working temperature-40��85 DEG C, overall loading 250mA.
3. a kind of two-way motor rotation state monitoring module according to claim 1, it is characterised in that: in signal acquisition module, described motor specified speed 3600rpm, larynx band photoelectric code disk hollow out number is taken as 16, and corresponding output pulse-repetition is 960Hz; Described magnetic force Surface Mount temperature sensor temperature-measuring range-55��125 DEG C, when-10��85 DEG C, precision is �� 0.5 DEG C, supports " one-wire bus " interface and multiple spot networking function, namely multiple temperature sensor can and hang together on unique three lines.
4. a kind of two-way motor rotation state monitoring module according to claim 1, it is characterized in that: described power transfer module adopts three terminal regulator that DC12V is converted to the DC5V power supply needed for temperature sensor, rear class power conversion chip CAT6219 provides stable DC3.3V power supply for monitoring modular.
5. a kind of two-way motor rotation state monitoring module according to claim 1, it is characterised in that: each is tall and big in 2.1mm for described hollow out, is wider than 1mm, thick is greater than 0.2mm, and hollow out interval is greater than 1mm.
6. a kind of two-way motor rotation state monitoring module according to claim 1, it is characterized in that: built-in programming OSC, I2C, SPI, UART, TEMP sensing of described core processing device C8051F006-48TQFP, 2 INT, 4 Timer, 16 GPIO, 8 passage ADC, 2 passage DAC, 2 channel voltage comparers, multi-source resets and minimum power consumption system support; 8 described passage ADC are 12bit, 100ksps; 2 described passage DAC are 12bit, 100ksps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520976723.5U CN205283453U (en) | 2015-12-01 | 2015-12-01 | Double - circuit motor running condition monitoring module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520976723.5U CN205283453U (en) | 2015-12-01 | 2015-12-01 | Double - circuit motor running condition monitoring module |
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| CN205283453U true CN205283453U (en) | 2016-06-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356822A (en) * | 2015-12-01 | 2016-02-24 | 宁夏共享集团股份有限公司 | Double-motor operating state monitoring module |
| CN114543897A (en) * | 2022-03-30 | 2022-05-27 | 合肥科威尔电源系统股份有限公司 | Virtual motor sensor circuit |
-
2015
- 2015-12-01 CN CN201520976723.5U patent/CN205283453U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356822A (en) * | 2015-12-01 | 2016-02-24 | 宁夏共享集团股份有限公司 | Double-motor operating state monitoring module |
| CN105356822B (en) * | 2015-12-01 | 2018-02-27 | 宁夏共享集团股份有限公司 | A kind of two-way machine operating condition monitoring modular |
| CN114543897A (en) * | 2022-03-30 | 2022-05-27 | 合肥科威尔电源系统股份有限公司 | Virtual motor sensor circuit |
| CN114543897B (en) * | 2022-03-30 | 2024-03-26 | 科威尔技术股份有限公司 | Virtual motor sensor circuit |
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Granted publication date: 20160601 Effective date of abandoning: 20180227 |
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| AV01 | Patent right actively abandoned |