CN105353307A - On-line main operating parameter monitoring system for mine motor - Google Patents
On-line main operating parameter monitoring system for mine motor Download PDFInfo
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- CN105353307A CN105353307A CN201510869594.4A CN201510869594A CN105353307A CN 105353307 A CN105353307 A CN 105353307A CN 201510869594 A CN201510869594 A CN 201510869594A CN 105353307 A CN105353307 A CN 105353307A
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Abstract
The invention belongs to the technical field of on-line monitoring of motors, and particularly relates to an on-line main operating parameter monitoring system for a mine motor. The on-line main operating parameter monitoring system for the mine motor is composed of a DSP (Digital Signal Processor), a simulator, a programmable computer, a reset unit, a display unit, a current sensor, a temperature sensor, a torque sensor, a revolution speed sensor, a gas sensor, a humidity sensor, a working environment, a signal isolating unit, a signal conversion unit, a sound-light alarm unit, a communication unit and a remote monitoring system. The on-line main operating parameter monitoring system can acquire the current, temperature, torque, revolution speed as well as gas content and humidity information of the working environment of the motor, performs processing and remote transmission, has the advantages of high measurement precision, good stability, strong anti-interference performance and the like, is suitable for severe environments of mines and occasions where motors are used frequently, improves the reliability and the stability of the mine motor, ensures safe production and people's life and property safety, and is significant.
Description
Technical field
The invention belongs to a kind of motor on-line monitoring technique field, particularly relate to a kind of mine motor and run major parameter on-line monitoring system.
Background technology
At present, China's coal-mine safety production situation continues to take a turn for the better, coal mining environment improves, accident total amount and fatality rate per million tons are all declining year by year, but Safety of Coal Mine Production situation is still severe, particularly serious industrial accident happens occasionally, and the basic hidden danger of restriction Safety production questions fails effectively to be administered.Mining motor is the more production equipment of down-hole application, also be the equipment the most easily broken down, so the performance of mining motor directly governs Coal Mine Power Network quality (electric motor starting, brake have greater impact to electrical network) and can safety in production be carried out smoothly.Motor status on-line monitoring refers to assessment and measures in real time the various performance parameter of motor operation course and product quality indicator parameter, then feed back to processor and carry out data calculating, and carry out analyzing and processing, call the running status that status assessment data storehouse judges motor.The condition evaluation results of motor is divided into normal condition, abnormality and malfunction three kinds.
Summary of the invention
In order to solve the technical matters that prior art exists, the present invention proposes a kind of mine motor and runs major parameter on-line monitoring system, object is to provide electric current, temperature, moment of torsion, the information such as rotating speed and working environment gas bearing capacity of system online acquisition motor, running status and the gas density that calculation process obtains motor is carried out through DSP, report to the police in motor operation troubles or gas overpressure timestamp, the data communication between remote computer can be realized simultaneously.
The present invention is achieved through the following technical solutions goal of the invention:
Mine motor runs major parameter on-line monitoring system, be connected with the output terminal of emulator by the DLL (dynamic link library) of DSP3, the output terminal of emulator is connected with the output terminal of programmed computer, the output terminal of reset unit is connected with the reseting interface of DSP, the input end of display unit is connected with the signal output part of DSP3, the signal input part of current transformer is connected with the three-phase windings of mine motor, the output terminal of current transformer is connected with the input end of signal isolated location, temperature sensor is fixed on mine motor, the output terminal of temperature sensor is connected with the input end of signal isolated location, torque sensor and speed probe are connected on the main shaft of motor, torque sensor is connected with the input end of signal isolated location with the output terminal of speed probe, firedamp sensor and humidity sensor are connected in the working environment of motor, firedamp sensor is connected with the input end of signal isolated location with the output terminal of humidity sensor, the output terminal of signal isolated location is connected with the input end of signal conversion unit, the output terminal of signal conversion unit is connected with the signal input part of DSP, the input end of acousto-optic warning unit is connected with the signal output part of DSP, the input end of communication unit is connected with the communication structure line of DSP, the output terminal of communication unit is connected with the communication interface of long distance control system.
Described current sensor, temperature sensor, torque sensor, speed probe, firedamp sensor and humidity sensor Real-time Collection mine motor electric current, temperature, moment of torsion, the gas bearing capacity of rotating speed and working environment and humidity, the simulating signal that DSP can identify is become after signal isolated location and signal conversion unit, DSP carries out the safety value of calculation process also and in database to the output information of sensor and contrasts, obtain running status and the working environment index of motor, in electrical fault, gas exceed standard and humidity over limit time reported to the police by acousto-optic warning unit, monitoring system utilizes SPI communication interface in real time mine motor operational factor and environmental information to be sent to long distance control system.
Described temperature sensor is a kind of current type integrated temperature sensor of AD company of AD590 U.S. development, in dut temperature one timing, be equivalent to a constant current source, export the current signal that 1 μ A/K is proportional to absolute temperature, there is the stronger linearity and antijamming capability; AD590 temperature sensor is pasted onto mining motor surface, and along with the rising of motor temperature, AD590 temperature is also along with increase, and output current, also along with increase, converts voltage signal to current signal, sends DSP to through the isolation of letter signal and converting unit.
The temperature sensing circuit of described temperature sensor is: the output terminal of temperature sensor AD 590 and resistance R1, one end of R3 is connected, the other end of resistance R1 is connected to the ground through swept resistance R2 and connects, the other end of resistance R3 is connected with the positive input terminal of operational amplifier LM358, the negative input end of operational amplifier LM358 is connected with its output terminal through resistance R5, the output terminal of LM358 is connected with the positive input terminal of voltage comparator LM361, resistance R4, after swept resistance R6 connects, two ends are connected with the positive and negative terminal of power supply respectively, the negative input end of voltage comparator LM361 is connected between resistance R4 and swept resistance R6, the output terminal of voltage comparator LM361 is connected with the input end of optocoupler HCNR201, resistance R7 is connected with the power supply negative terminal of optocoupler HCNR201 and ground respectively, resistance R8 is connected with the output terminal of power positive end and optocoupler HCNR201 respectively, operational amplifier LM358 is connected with the positive and negative of power supply respectively with the power supply positive and negative terminal of voltage comparator LM361,
The range of signal that DSP receives is 0-3.3V, and the signal maximum that the secondary side of sensor exports is 5V, do not mate, therefore modelled signal change-over circuit realizes the voltage transitions of different amplitude with DSP receiver voltage value; The signal that signal isolated location exports carries out processing the input end of analog signal mouth ADCINA0 being directly inputted to DSP through voltage-limiting protection, filtering and amplifying circuit.
Advantage of the present invention and beneficial effect are:
Mine motor of the present invention runs gas bearing capacity and the humidity information that major parameter on-line monitoring system can gather the stream of motor, temperature, moment of torsion, rotating speed and working environment, to go forward side by side row operation process and remote transmission, there is the advantages such as measuring accuracy is high, good stability, strong interference immunity, be adapted at the rugged surroundings of underground coal mine and the occasion of motor frequent application, for the reliability and stability improving mine motor, ensure that safety in production and people life property safety's tool are of great significance.
Below in conjunction with the drawings and specific embodiments to the present invention's detailed description in addition.
Accompanying drawing explanation
Fig. 1 mine motor runs major parameter on-line monitoring system structure diagram;
Fig. 2 temperature sensing circuit.
In figure: signal isolated location 1, signal conversion unit 2, DSP3, acousto-optic warning unit 4, reset unit 5, display unit 6, interface 7, emulator 8, programmed computer 9, communication unit 10, long distance control system 11, current sensor 13, temperature sensor 14, torque sensor 15, speed probe 16, firedamp sensor 17, humidity sensor 18, mine motor 19, working environment 20.
Embodiment
As Figure 1-Figure 2, the present invention is that a kind of mine motor runs major parameter on-line monitoring system, is described in detail below in conjunction with the specific implementation process of accompanying drawing to patent.
This monitoring system is by DSP3, emulator 8, programmed computer 9, reset unit 5, display unit 6, current sensor 13, temperature sensor 14, torque sensor 15, speed probe 16, firedamp sensor 17, humidity sensor 18, working environment 20, signal isolated location 1, signal conversion unit 2, acousto-optic warning unit 4, communication unit 10 and long distance control system 11 form, wherein the DLL (dynamic link library) 7 of DSP3 is connected with the output terminal of emulator 8, the output terminal of emulator 8 is connected with the output terminal of programmed computer 9, the output terminal of reset unit 5 is connected with the reseting interface of DSP3, the input end of display unit 6 is connected with the signal output part of DSP3, the signal input part of current transformer 13 is connected with the three-phase windings of mine motor 19, the output terminal of current transformer 13 is connected with the input end of signal isolated location 1, temperature sensor 14 is fixed on the surface of mine motor 19, the output terminal of temperature sensor 14 is connected with the input end of signal isolated location 1, torque sensor 15 and speed probe 16 are fixed on the main shaft of motor 19, torque sensor 15 is connected with the input end of signal isolated location 1 with the output terminal of speed probe 16, firedamp sensor 17 and humidity sensor 18 are fixed in the working environment 20 of motor, firedamp sensor 17 is connected with the input end of signal isolated location 1 with the output terminal of humidity sensor 18, the output terminal of signal isolated location 1 is connected with the input end of signal conversion unit 2, the output terminal of signal conversion unit 2 is connected with the signal input part of DSP3, the input end of acousto-optic warning unit 4 is connected with the signal output part of DSP3, the input end of communication unit 10 is connected with the communication structure line of DSP3, the output terminal of communication unit 10 is connected with the communication interface of long distance control system 11.
The monitoring system course of work describes: high-precision sensor: current sensor 13, temperature sensor 14, torque sensor 15, speed probe 16, firedamp sensor 17 and humidity sensor 18 Real-time Collection mine motor 19 electric current, temperature, moment of torsion, the gas bearing capacity of rotating speed and working environment and humidity, the simulating signal that DSP3 can identify is become after signal isolated location 1 and signal conversion unit 2, DSP3 carries out the safety value of calculation process also and in database to the output information of sensor and contrasts, obtain running status and working environment 20 index of motor 19, in motor 19 fault, gas exceed standard and humidity over limit time reported to the police by acousto-optic warning unit 4.Monitoring system utilizes SPI communication interface in real time mine motor operational factor and environmental information to be sent to long distance control system 11.
The important indicator of mining motor running status is weighed in temperature rise.The important measures of mining motor safety, reliability service are ensured during the temperature of Real-Time Monitoring motor body.AD590 is a kind of current type integrated temperature sensor of AD company of U.S. development, and this device, in dut temperature one timing, is equivalent to a constant current source, exports the current signal that 1 μ A/K is proportional to absolute temperature, have the stronger linearity and antijamming capability.AD590 temperature sensor is pasted onto mining motor surface, and along with the rising of motor temperature, AD590 temperature is also along with increase, and output current, also along with increase, converts voltage signal to current signal, sends DSP to through the isolation of letter signal and converting unit.Temperature sensing circuit as shown in Figure 2, the wherein output terminal of temperature sensor AD 590 and resistance R1, one end of R3 is connected, the other end of resistance R1 is connected to the ground through swept resistance R2 and connects, the other end of resistance R3 is connected with the positive input terminal of operational amplifier LM358, the negative input end of operational amplifier LM358 is connected with its output terminal through resistance R5, the output terminal of LM358 is connected with the positive input terminal of voltage comparator LM361, resistance R4, after swept resistance R6 connects, two ends are connected with the positive and negative terminal of power supply respectively, the negative input end of voltage comparator LM361 is connected between resistance R4 and swept resistance R6, the output terminal of voltage comparator LM361 is connected with the input end of optocoupler HCNR201, resistance R7 is connected with the power supply negative terminal of optocoupler HCNR201 and ground respectively, resistance R8 is connected with the output terminal of power positive end and optocoupler HCNR201 respectively, operational amplifier LM358 is connected with the positive and negative of power supply respectively with the power supply positive and negative terminal of voltage comparator LM361.
The range of signal that DSP receives is 0-3.3V, and the signal maximum that the secondary side of sensor exports is 5V, do not mate, therefore modelled signal change-over circuit realizes the voltage transitions of different amplitude with DSP receiver voltage value.In order to improve the security performance of circuit, preventing the input signal of operational amplifier and DSP excessive, damaging components and parts, design pressure limiting protective circuit of diode.Signaling conversion circuit selects active filter circuit to carry out filtering, prevents signal disturbing.The signal that signal isolated location exports carries out processing the input end of analog signal mouth ADCINA0 being directly inputted to DSP through voltage-limiting protection, filtering and amplifying circuit.
Mine motor of the present invention runs gas bearing capacity and the humidity information that major parameter on-line monitoring system can gather the stream of motor, temperature, moment of torsion, rotating speed and working environment, to go forward side by side row operation process and remote transmission, there is the advantages such as measuring accuracy is high, good stability, strong interference immunity, be adapted at the rugged surroundings of underground coal mine and the occasion of motor frequent application, for the reliability and stability improving mine motor, ensure that safety in production and people life property safety's tool are of great significance.
Claims (4)
1. mine motor runs major parameter on-line monitoring system, it is characterized in that: be connected with the output terminal of emulator (8) by the DLL (dynamic link library) (7) of DSP3, the output terminal of emulator (8) is connected with the output terminal of programmed computer (9), the output terminal of reset unit (5) and DSP(3) reseting interface be connected, the input end of display unit (6) and DSP(3) signal output part be connected, the signal input part of current transformer (13) is connected with the three-phase windings of mine motor (19), the output terminal of current transformer (13) is connected with the input end of signal isolated location (1), temperature sensor (14) is fixed on mine motor (19), the output terminal of temperature sensor (14) is connected with the input end of signal isolated location (1), torque sensor (15) and speed probe (16) are connected on the main shaft of motor (19), torque sensor (15) is connected with the input end of signal isolated location (1) with the output terminal of speed probe (16), firedamp sensor (17) and humidity sensor (18) are connected in the working environment (20) of motor, firedamp sensor (17) is connected with the input end of signal isolated location (1) with the output terminal of humidity sensor (18), the output terminal of signal isolated location (1) is connected with the input end of signal conversion unit (2), the output terminal of signal conversion unit (2) and DSP(3) signal input part be connected, the input end of acousto-optic warning unit (4) and DSP(3) signal output part be connected, the input end of communication unit (10) and DSP(3) communication structure line be connected, the output terminal of communication unit (10) is connected with the communication interface of long distance control system (11).
2. mine motor according to claim 1 runs major parameter on-line monitoring system, it is characterized in that: described current sensor (13), temperature sensor (14), torque sensor (15), speed probe (16), firedamp sensor (17) and humidity sensor (18) Real-time Collection mine motor (19) electric current, temperature, moment of torsion, the gas bearing capacity of rotating speed and working environment and humidity, DSP(3 is become after signal isolated location (1) and signal conversion unit (2)) simulating signal that can identify, DSP(3) carry out the safety value of calculation process also and in database to the output information of sensor to contrast, obtain running status and working environment (20) index of motor (19), in motor (19) fault, gas exceed standard and humidity over limit time reported to the police by acousto-optic warning unit (4), monitoring system utilizes SPI communication interface in real time mine motor operational factor and environmental information to be sent to long distance control system (11).
3. mine motor according to claim 1 runs major parameter on-line monitoring system, it is characterized in that: described temperature sensor (14) is a kind of current type integrated temperature sensor of AD company of AD590 U.S. development, in dut temperature one timing, be equivalent to a constant current source, export the current signal that 1 μ A/K is proportional to absolute temperature, there is the stronger linearity and antijamming capability; AD590 temperature sensor is pasted onto mining motor surface, and along with the rising of motor temperature, AD590 temperature is also along with increase, and output current, also along with increase, converts voltage signal to current signal, sends DSP to through the isolation of letter signal and converting unit.
4. mine motor according to claim 3 runs major parameter on-line monitoring system, it is characterized in that: the temperature sensing circuit of described temperature sensor (14) is: the output terminal of temperature sensor AD 590 and resistance R1, one end of R3 is connected, the other end of resistance R1 is connected to the ground through swept resistance R2 and connects, the other end of resistance R3 is connected with the positive input terminal of operational amplifier LM358, the negative input end of operational amplifier LM358 is connected with its output terminal through resistance R5, the output terminal of LM358 is connected with the positive input terminal of voltage comparator LM361, resistance R4, after swept resistance R6 connects, two ends are connected with the positive and negative terminal of power supply respectively, the negative input end of voltage comparator LM361 is connected between resistance R4 and swept resistance R6, the output terminal of voltage comparator LM361 is connected with the input end of optocoupler HCNR201, resistance R7 is connected with the power supply negative terminal of optocoupler HCNR201 and ground respectively, resistance R8 is connected with the output terminal of power positive end and optocoupler HCNR201 respectively, operational amplifier LM358 is connected with the positive and negative of power supply respectively with the power supply positive and negative terminal of voltage comparator LM361,
The range of signal that DSP receives is 0-3.3V, and the signal maximum that the secondary side of sensor exports is 5V, do not mate, therefore modelled signal change-over circuit realizes the voltage transitions of different amplitude with DSP receiver voltage value; The signal that signal isolated location exports carries out processing the input end of analog signal mouth ADCINA0 being directly inputted to DSP through voltage-limiting protection, filtering and amplifying circuit.
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Cited By (7)
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| CN106405411A (en) * | 2016-11-23 | 2017-02-15 | 国家电网公司 | Digital integration method breaker dielectric loss angle tangent value online monitoring system and method thereof |
| CN107966921A (en) * | 2016-10-20 | 2018-04-27 | 帅立国 | A kind of built-in industrial internet of things net controller and monitoring system |
| CN109510424A (en) * | 2018-12-17 | 2019-03-22 | 煤科集团沈阳研究院有限公司 | Coal mine disconnecting switch disjunction test direct-drive motor mechanism and its control system |
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| CN110351356A (en) * | 2019-07-06 | 2019-10-18 | 内蒙古智能煤炭有限责任公司 | The transmission of mining equiment operation data, intelligent early-warning, remote medical consultation with specialists analysis system and method |
| CN110426635A (en) * | 2019-09-09 | 2019-11-08 | 周封 | Intelligent electric machine terminal box integral type multi-parameter internet of things sensors |
| CN110780197A (en) * | 2019-11-13 | 2020-02-11 | 荆门市遥锐机电科技有限公司 | Motor running state monitoring system |
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| CN110426635A (en) * | 2019-09-09 | 2019-11-08 | 周封 | Intelligent electric machine terminal box integral type multi-parameter internet of things sensors |
| CN110780197A (en) * | 2019-11-13 | 2020-02-11 | 荆门市遥锐机电科技有限公司 | Motor running state monitoring system |
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