CN102251808A - Safety monitoring terminal device for mine motor - Google Patents
Safety monitoring terminal device for mine motor Download PDFInfo
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Abstract
Description
Technical field
The present invention relates to a kind of mining motor safety monitor terminal device, belong to the monitoring field.
Background technology
The working environment very severe of mine; the damage ratio of electric fixtures is higher; and; also all there is certain distance between Control Room in the Minepit environment and the working site; and the data that existing mining electric motor protecting monitoring system all adopts wire transmission to gather; this setup has caused the real-time of data communication and antijamming capability low; and the electric motor protecting system great majority that use in the existing mine are mounted in the JDB series protector in the explosion-isolated vacuum magnetic starter; this series comprehensive protection device mostly is independent component; the analog circuit low precision, the fault rate height.And can only upload the data in the PC of Control Room, can not send relevant leader or technician the very first time to judge.
Summary of the invention
The present invention seeks to the very first time to send the data of gathering to relevant leader or the problem of technician to judge in order to solve the existing mine electricity consumption organizational security protecting system of wire transmission that adopts.A kind of mining motor safety monitor terminal device is provided.
A kind of mining motor safety monitor terminal device of the present invention, it comprises single chip processing module, on-site data gathering module, fault Executive Module, communication processing module, human-computer interaction module and I 2The C interface peripheral module;
The communication processing module comprises wireless communication module and 485 communication modules, and human-computer interaction module comprises keyboard interface circuit and liquid crystal display circuit, I 2The C interface peripheral module comprises system's calendar circuit and extends out memory circuit;
The on-site data gathering module is gathered three-phase alternating voltage signal, three-phase alternating current signal and the frequency signal of motor, the signal output part of on-site data gathering module links to each other with the acquired signal input of single chip processing module, the data input/output terminal of single chip processing module links to each other with the data input/output terminal of 485 communication modules, 485 communication modules adopt the data of the motor that the RS-485 bus collects this terminal device to send to the PC of Surveillance center, and 485 communication modules receive the order and the data of PC;
The note output of single chip processing module links to each other with the note input of wireless communication module, and wireless communication module sends to note by the GSM network cellphone subscriber of Surveillance center;
The parameter of single chip processing module is provided with input and links to each other with the output of keyboard interface circuit;
The data of single chip processing module show that output links to each other with the input of liquid crystal display circuit;
The time of single chip processing module is provided with output and links to each other with the input of system calendar circuit;
The storage output of single chip processing module links to each other with the input that extends out memory circuit;
The troubleshooting signal output part of single chip processing module links to each other with the input of fault Executive Module, and the output of fault Executive Module links to each other with the control end of the contactor of control motor operation.
Advantage of the present invention: the mining motor safety supervising device of low power-consumption intelligent type of the present invention; it adopts digitlization, modularization and Radio Transmission Technology; can not only be accurately, reaction motor fault and abnormal operating condition reliably; fault is in various degree taked measures such as fast trip or warning according to actual conditions; and field condition can be uploaded Surveillance center can also notify at once to the monitor staff by short message mode; the accident that prevents further enlarges; thereby the economic loss that the serious accident of avoiding and unnecessary shutdown cause guarantees the production safety operation.
Not only multiple functional, monitoring accurately, antijamming capability by force, also utilizes network, is convenient to expansion, and transplantability is good.The present invention can be applied to the mining motor monitoring of circumstance complication or the motor monitoring of other industrial circles.
Description of drawings
Fig. 1 is the structure of block diagram schematic diagram of mining motor safety monitor terminal device of the present invention;
Fig. 2 is the physical circuit figure of single chip processing module;
Fig. 3 is the physical circuit figure of on-site data gathering module;
Fig. 4 is the physical circuit figure of fault Executive Module;
Fig. 5 is the physical circuit figure of communication processing module;
Fig. 6 is the physical circuit figure of human-computer interaction module;
Fig. 7 is I 2The physical circuit figure of C interface peripheral module;
Fig. 8 is the workflow diagram of described mining motor safety monitor terminal device.
The specific embodiment
The specific embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 8, a kind of mining motor safety monitor terminal device of embodiment, it comprises single chip processing module 1, on-site data gathering module 2, fault Executive Module 3, communication processing module 4, human-computer interaction module 5 and I 2C interface peripheral module 6;
Communication processing module 4 comprises wireless communication module 4-1 and 485 communication module 4-2, and human-computer interaction module 5 comprises keyboard interface circuit 5-1 and liquid crystal display circuit 5-2, I 2C interface peripheral module 6 comprises the calendar circuit 6-1 of system and extends out memory circuit 6-2;
On-site data gathering module 2 is gathered three-phase alternating voltage signal, three-phase alternating current signal and the frequency signal of motor, the signal output part of on-site data gathering module 2 links to each other with the acquired signal input of single chip processing module 1, the data input/output terminal of single chip processing module 1 links to each other with the data input/output terminal of 485 communication module 4-2,485 communication module 4-2 adopt the data of the motor that the RS-485 bus collects this terminal device to send to the PC of Surveillance center, and 485 communication module 4-2 receive the order and the data of PC;
The note output of single chip processing module 1 links to each other with the note input of wireless communication module 4-1, and wireless communication module 4-1 sends to note by the GSM network cellphone subscriber of Surveillance center;
The parameter of single chip processing module 1 is provided with input and links to each other with the output of keyboard interface circuit 5-1;
The data of single chip processing module 1 show that output links to each other with the input of liquid crystal display circuit 5-2;
The time of single chip processing module 1 is provided with output and links to each other with the input of the calendar circuit 6-1 of system;
The storage output of single chip processing module 1 links to each other with the input that extends out memory circuit 6-2;
The troubleshooting signal output part of single chip processing module 1 links to each other with the input of fault Executive Module 3, and the output of fault Executive Module 3 links to each other with the control end of the contactor of control motor operation.
Described single chip processing module 1 comprises reset circuit, the clock circuit of assurance system operate as normal and the jtag circuit of online programming is provided for low-power scm.It is the single-chip microcomputer of MSP430F449 that single-chip microcomputer in the single chip processing module 1 is selected model for use.
Wireless communication module 4-1 adopts gsm module-TC35i modular circuit.
485 communication module 4-2 are RS-485 half duplex series communication interface chip.
Described on-site data gathering module 2 comprises motor A, B, C three-phase alternating voltage and current effective value, the measurement of real-time frequency, indirect calculation is gone out parameters such as active power, reactive power and power factor.Described fault Executive Module 3 can be taked fast trip and sound and light alarm measure to fault in various degree according to the situation to actual acquired data.
Communication processing module 4 comprises two parts:
1) RS-485 half duplex series communication interface is used for the monitor network that multiple electric motors protective device and master control PC form the RS-485 bus.Finishing and monitor PC comprises to host computer transmission motor real-time and history run parameter and failure logging information; Accept various control commands and data that host computer sends, thereby realize the long-range setting and the monitoring of motor operation Parameter On-line of protective device protection parameter.
2) wireless communication module 4-1 adopts gsm module-TC35i modular circuit to finish the wireless data load mode.Utilize SMS service in the gsm system, when electrical fault takes place, can be notified to technician or relevant leader, reduce the loss with the timely processing of the accident of accomplishing by the SMS very first time.
Described human-computer interaction module 5 comprises: be used for the keyboard interface circuit 5-1 of on-site parameters setting and the LCD interface circuit 5-2 that on-the-spot real time data, protection classification show.
Described I 2C interface peripheral module 6 comprises: the system time calendar interface circuit 6-1 of this device required time and date and time information and storage data extend out memory circuit 6-2, all adopt I 2The C interface mode.
The concrete course of work of present embodiment device: behind A, B, C three-phase alternating voltage and the current acquisition of on-site data gathering module 2 during with machine operation, enter by the A/D port in the single chip processing module 1, through calculating the virtual value of voltage, electric current and the calculating of real-time frequency.Whether normally parameters such as active power, reactive power and power factor when utilizing the formula indirect calculation to go out machine operation again judge machine operation theoretical foundation to be ready for use on.When the motor operate as normal, data are uploaded the PC of Surveillance center by the RS-485 half duplex series communication interface in the communication processing module 4, carry out data by the LCD interface circuit 5-2 in the human-computer interaction module 5 simultaneously and show.When motor broke down, single chip processing module 1 can take fast trip to cut off the electricity supply and the sound and light alarm measure to fault in various degree by fault Executive Module 3 according to the situation to actual acquired data.When fault message is uploaded Surveillance center's PC by the RS-485 half duplex series communication interface in the communication processing module 4 by the gsm module in the communication processing module 4-TC35i modular circuit, utilize SMS service in the gsm system, be notified to technician or relevant leader by the SMS very first time, reduce the loss with the timely processing of the accident of accomplishing.Also can show the on-the-spot protection classification of taking at the scene by human-computer interaction module 5 LCD interface circuit 5-2.Keyboard interface circuit 5-1 in the human-computer interaction module 5 is used for on-site parameters and sets.I 2System time calendar interface circuit 6-1 in the C interface peripheral module 6 finishes the information on this device required time and date, extends out memory circuit 6-2 and is used to store field data and has anti-power-off protector measure, in case data are lost when power down.
The hardware implementation of this invention is described in conjunction with Fig. 2 to Fig. 7.Hardware circuit is made up of six parts altogether, and is corresponding mutually with Fig. 1 each several part respectively.Comprise that Part1 is the physical circuit of single chip processing module 1, specifically referring to Fig. 2; Part2 is the physical circuit of on-site data gathering module 2, specifically referring to Fig. 3; Part3 is the physical circuit of fault Executive Module 3, specifically referring to Fig. 4; Part4 is the physical circuit of communication processing module 4, specifically referring to Fig. 5; Part5 is the physical circuit of human-computer interaction module 5, specifically referring to Fig. 6; Part6 is I 2The physical circuit of C interface peripheral module 6 is specifically referring to Fig. 7.
Part1: the physical circuit of single chip processing module 1, adopt the control core of low-power scm MSP430F449 as system, single-chip microcomputer adopts two clocks inputs, both clock signal Y1 of a 32KHz, the clock signal Y2 of a 8MHz.C13, C14, C17, C18 are power filtering capacitor, and these four power filtering capacitors join with the power pin 1,100,10 of single-chip microcomputer respectively, are used to reduce disturb to the input ripple of the power supply of single-chip microcomputer power supply.U13 is the jtag interface chip, join with 90～93 pins of single-chip microcomputer respectively and then realize providing single-chip microcomputer on-line debugging routine interface, wherein J1 can not be connected as power interface simultaneously with J2, when JTAG uses external power source, two pin short circuits of J1 are connected, when external power source is not enough, the power supply that can provide with JTAG at this moment, two pin short circuits with J2 at this moment connect.
Part2: the physical circuit of on-site data gathering module 2 comprises the real-time collection of three-phase voltage, current acquisition and frequency.
Three-phase voltage Acquisition Circuit: Va-in, Vb-in, Vc-in is respectively the input of motor three-phase voltage, with A phase voltage Va-in is that example explanation particular circuit configurations: T1 is a potential transformer, output signal is the alternating voltage of 0～100V, the voltage signal of this potential transformer output is through resistance R 1, after the dividing potential drop of R2 as the input signal of amplifier U1A, this amplifier U1A adopts and penetrates the input impedance that the level mode of following improves circuit, export to the phase inverter of forming by amplifier U1B after the signal shaping of this amplifier U1A with input, the multiplication factor of this phase inverter is regulated by adjustable potentiometer R20, the adder that amplifier U4 forms will be carried out anti-phase summation by signal and the 1.5V reference voltage REF that the phase inverter that amplifier U4 forms is exported, obtain the output signal of 0～3V, the input end of analog signal mouth P6.0 that this output signal sends to the inside A/D converter of single-chip microcomputer MSP430F449 among the Part1 carries out analog-to-digital conversion.Equally, B phase C phase voltage is through entering the input end of analog signal mouth P6.1 and the P6.2 of the inside A/D converter of single-chip microcomputer MSP430F449 respectively after changing.
Three-phase current Acquisition Circuit: Ia-in, Ib-in, Ic-in is respectively the input of motor three-phase current, with A phase current Ia-in is that example explanation particular circuit configurations: T4 is a current transformer, output signal is the alternating current of 0～5A, R23 is a sampling resistor, described ac current signal is converted to voltage signal, C7 is a filter capacitor, amplifier U2C forms voltage follower, described voltage signal is exported to the inverting amplifier of being made up of amplifier U2D after this voltage follower conversion improves input impedance, export to the in-phase end of the adder of forming by amplifier U8 behind the signal of this inverting amplifier output, and carry out anti-phase summation with voltage reference signal REF, obtain the output signal of 0～3V, the input end of analog signal mouth P6.3 that this output signal inputs to the inside A/D converter of single-chip microcomputer MSP430F449 among the Part1 carries out analog-to-digital conversion.Equally, B phase C phase current is through entering the input end of analog signal mouth P6.4 and the P6.5 of the inside A/D converter of single-chip microcomputer MSP430F449 respectively after changing.
The real-time collection of frequency adopts frequency measurement circuit to realize, this frequency measurement circuit act on AC sampling the time, accurate for guaranteeing data, can adjust the sampling period by the variation of real-time tracking frequency.Frequency measurement circuit of the present invention partly is made up of filter circuit, zero passage comparison circuit, photoelectric isolating device etc.The input signal of this frequency measurement circuit is the sine wave signal Ua-out from motor outlet potential transformer, this sine wave signal Ua-out process is by R36, C10 and R38, the two-stage low-pass filter circuit filtering that C11 forms, export to the zero-crossing comparator of forming by amplifier U11A behind the filtering high-frequency interferencing signal wherein, the zero crossing that this zero-crossing comparator is finished synchronizing voltage detects, the sine wave signal of input is shaped as the square-wave signal of same frequency, form synchronous square-wave signal, this square-wave signal is exported to photoelectric isolating device U12, isolates the CA0 mouth P1.6 that the square-wave signal of exporting the back exports to single-chip microcomputer through this photoelectric isolating device U12 and is used for the measuring-signal frequency.
Part3: the physical circuit of fault Executive Module 3.When motor breaks down, adopt warning circuit to realize reporting to the police, adopt circuit for controlling motor to disconnect the machine operation power supply simultaneously, stop machine operation.Wherein, warning circuit adopts buzzer U7 to realize audible alarm, and this buzzer U7 is driven by positive-negative-positive triode Q1.Circuit for controlling motor adopts photoelectric isolating circuit D14 and relay J DQ1 to realize, the input of photoelectric isolating circuit D14 receives the alarm signal of input, 6 output signal driving N PN type triode Q2 of the isolation output of this photoelectric isolating circuit D14, this triode Q2 drives the coil working of relay J DQ1, two contact 6 pin of the switch of this relay J DQ1 and 7 pin are connected in the power supply loop of motor by interface J9, are used to control the break-make of the working power of motor.
Part4: the physical circuit of communication processing module 4.1 pin, 4 pin of being responsible for RS-485 half duplex series communication interface chip U17 that data in real time is uploaded joins with 62 pin and 63 pin of single-chip microcomputer MSP430F449 respectively, and 2,3 pin of U17 join with the 51 pin P4.2 of MSP430F449 simultaneously as control end.
Utilize SMS service in the gsm system, the TC35i modular circuit outside that is notified to technician or relevant leader by the SMS very first time when motor breaks down is controlled the TC35i module by the ZIF connector J1 of 40 pins.1～5 pin of J1 is battery power supply BATT+, meets VCC-5V, and VCC-5V is the 5V power supply among the present invention, sends the required 2A electric current of note, so chip U15 provides the power supply VCC-5V of 2A electric current for the TC35i module.6～10 pin of J1 are the power supply ground of digital circuit working power.That the SIM card seat of TC35i module adopts is 8 pin Molex seat J2.28 pin of J1,29 pin join with 1,4 pin of J2 respectively, and J2 provides working power for SIM card; Whether 24 pin of J1 and 8 pin of J2 join and are used to detect SIM card and install; 25 pin of J1 and 2 pin of J2 join and are used for system reset; 26 pin of J1,27 pin join with 6 pin, 3 pin of J2 respectively and are used for the transmission of SIM card and TC35i intermodular data.After driving through triode Q3, exports to the signal of the 73 pin output of single-chip microcomputer MSP430F449 15 pin of J1; 74 pin of single-chip microcomputer MSP430F449,75 pin join with 18 pin, 19 pin of J1 respectively and are used for the transmission of single-chip microcomputer and TC35i intermodular data.32 toes of J1 show the duty of TC35i.When D31 extinguishes, show that TC35i is in to close or sleep state; When D31 be 600ms bright, when putting out alternately, show that SIM card is not inserted or TC35i is carrying out network entry; When D31 be 75ms bright-when 3s puts out cycle alternation, show TC35i login to be in holding state.
Part5: the physical circuit of human-computer interaction module 5, this circuit is made up of keyboard and LCD interface, wherein keyboard is 4 * 4 matrix keyboards, 4 lines of this matrix keyboard S1～S16 join with 22 pin～25 pin of single-chip microcomputer MSP430F449 respectively, and 4 alignments of this matrix keyboard join with 26 pin～29 pin of single-chip microcomputer MSP430F449 respectively.U16 is a LCD interface, 1 pin of U16 connects power supply ground, 2 pin connect power supply, 4 pin～6 pin join with 50 pin that are used to show control, 49 pin and 48 pin of single-chip microcomputer MSP430F449 respectively, 7 pin～14 pin join as video data output 30 pin～37 pin of parallel video data and single-chip microcomputer MSP430F449, and 15 pin connect power supply and represent to adopt parallel convey.
Part6:I 2The physical circuit of C interface peripheral module 6.U18 is a clock module, and that has adopted low-power consumption has a worker I 2CMOS real-time clock/the calendar chip of C interface, being mainly used to provides correct time to system.5 pin of U18,6 pin join with 66 pin and 67 pin of single-chip microcomputer MSP430F449 respectively.What the U19 memory module adopted also is to have I 2The chip of C interface, its 5 pin, 6 pin join with 64 pin and 65 pin of single-chip microcomputer MSP430F449 respectively, finish the transmission of data.
The software execute process of present embodiment device is described referring to Fig. 8.Behind the system boot, system carries out initialization.Initialization comprise flag bit and variable initialize, start timer, open interruptions, serial communication setting, liquid crystal display initialization setting, reading system running parameter, the working method of each interface chip be set, the software counter that will use during all operations of RAM district and the set of various input/output ports and reset etc.In general system initialization routine only need be carried out once just passable.
Self check is checked system hardware and running status thereof exactly comprehensively.Self check comprises RAM read-write check, definite value self check, EPROM self check and output channel thereof (outlet trip(ping) circuit) self check.Self check is the guardian technique measure that system protection reliability, safety obtain basic assurance, can find soft, the hardware fault of protective device rapidly by self check, if self check is normal, then main program continues to carry out downwards; Otherwise device alarm and latch-up protection wait for that the professional checks.
Open data sampling and interrupt, carry out the initialization and the collection of data,, the sampled data buffer area is carried out address assignment promptly to each banner word, counter O reset.Judged whether that then key presses,,, judged next whether call duration time arrives, to then executive communication program, finished the data upload function as call duration time according to corresponding programs such as key assignments execution parameter settings if there is key to remove to carry out the button service routine by next.After program is finished, return main program, be masked as 1, then enter the relay protection handling procedure if detect the relay protection startup; Be masked as 0 if detect the relay protection startup, then return main program.Be masked as 1 if detect the fault diagnosis startup, then enter fault diagnostic program, be masked as 0, then return main program if detect to start.
The relay protection handling procedure mainly is that the algorithm of finishing data computation, various protections calculates and the protection differentiation, and Trip Logic judges that alarm is reported with outlet trip avoidance function and incident, the functions such as arrangement of Trouble Report.Wherein, it is the nucleus module of finishing defencive function that the algorithm of protection calculates, and the operating criterion that main contents have the fault signature amount to calculate, protect calculates, and fault type is judged.Can according to the protection criterion, evaluation and setting value be compared according to from A/D sampling interrupt routine, reading in real-time evaluation, thus the fault of having judged whether.If there is not fault, then turn back to major cycle; If fault is arranged, then as the case may be, decision is reported to the police or tripping operation, simultaneously, by starting the mobile phone alarm handling procedure, fault type is notified to technician or relevant leader by the SMS very first time, reduces the loss with the timely processing of the accident of accomplishing.
The mobile phone alarm handling procedure, by write different AT instruction to TC35i, finish network entry after, telephone number on the single-chip microcomputer reading SIM card, fault type is uploaded in the number.Certainly, device also can receive SMS message, when single-chip microcomputer receives order by TC35i, at first wants key, if meet the requirements, will outgoi8ng data, and if do not meet, then delete information.Short message is set adopts the UCS2 in the PDU coding to encode, be used to send the Unicode coding.
After the mobile phone alarm handling procedure is sent completely troubleshooting tasks such as protection, tripping operation, carry out the whole involution operation of organizing, all signs of zero clearing and operational order, protection device turns back to the state before the fault, for protection action is next time got ready.Judge whether anti-lost electrosemaphore is 1 after getting back to major cycle, during every 1 minute of time, anti-lost electrosemaphore is 1 with data storages once,, returns the circulation of major cycle original position after the execution and carries out because the temporary system outage causes the situation of obliterated data to prevent.
Mining motor safety monitor terminal device of the present invention is low in energy consumption, and can notify the related personnel by the short message mode very first time, and transplantability is good, easy for installation.
The specific embodiment two: present embodiment is described further embodiment, and it also comprises indicating fault alarm module 7, and the fault-signal input of indicating fault alarm module 7 links to each other with the fault-signal output of single chip processing module 1.
Claims (10)
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| CN201110098221.3A CN102251808B (en) | 2011-04-19 | 2011-04-19 | Safety monitoring terminal device for mine motor |
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| CN201110098221.3A CN102251808B (en) | 2011-04-19 | 2011-04-19 | Safety monitoring terminal device for mine motor |
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| CN102568180A (en) * | 2011-12-31 | 2012-07-11 | 成都国腾实业集团有限公司 | Oil engine efficiency tracking monitoring system and method |
| CN103513180A (en) * | 2013-06-24 | 2014-01-15 | 大连民族学院 | Motor operation state monitoring and fault detecting system |
| CN103532099A (en) * | 2013-10-17 | 2014-01-22 | 合肥国润智能电气技术有限公司 | Intelligent control system of security motor in inflammable and explosive environment |
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| CN104536310A (en) * | 2014-11-27 | 2015-04-22 | 哈尔滨金都太阳能科技有限公司 | Rotating speed controller of driving motor of submersible propeller |
| CN104579021A (en) * | 2014-11-28 | 2015-04-29 | 三一重型装备有限公司 | Mining multi-loop electromagnetic starter and mining mechanical control equipment |
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| CN102568180A (en) * | 2011-12-31 | 2012-07-11 | 成都国腾实业集团有限公司 | Oil engine efficiency tracking monitoring system and method |
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| CN104536310A (en) * | 2014-11-27 | 2015-04-22 | 哈尔滨金都太阳能科技有限公司 | Rotating speed controller of driving motor of submersible propeller |
| CN104579021A (en) * | 2014-11-28 | 2015-04-29 | 三一重型装备有限公司 | Mining multi-loop electromagnetic starter and mining mechanical control equipment |
| CN104500144A (en) * | 2014-12-29 | 2015-04-08 | 山东华硕能源科技有限公司 | Mining multifunctional safety production online detection monitoring substation and working method thereof |
| CN106301088A (en) * | 2016-08-27 | 2017-01-04 | 内蒙古包钢钢联股份有限公司 | A kind of magnetic starter with network savvy |
| CN108799078A (en) * | 2018-05-30 | 2018-11-13 | 扬州大学 | A kind of construction site violation operation warning device and its application method |
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|---|---|
| CN102251808B (en) | 2014-02-26 |
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