CN101303814B - Mining conveying belt simulator - Google Patents
Mining conveying belt simulator Download PDFInfo
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- CN101303814B CN101303814B CN2008100394169A CN200810039416A CN101303814B CN 101303814 B CN101303814 B CN 101303814B CN 2008100394169 A CN2008100394169 A CN 2008100394169A CN 200810039416 A CN200810039416 A CN 200810039416A CN 101303814 B CN101303814 B CN 101303814B
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- master cpu
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- travelling belt
- conveying belt
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Abstract
The invention relates to a mine conveyer belt simulator, which comprises a main controlling CPU, a controlling computer, a parallel port extended circuit, a serial Flash, a key-press displaying circuit, a speed signal driving circuit and a parallel sensing signal driving circuit, wherein the main controlling CPU outputs the conveyer belt speed signals and parallel sensing signals through the parallel port extended circuit and two signal driving circuits to simulate the running condition of the conveyer belts. By using a single-chip microcomputer system to simulate the running conditions of jointing, end breaking and the speed of mine conveyer belts, the mine conveyer belt simulator can greatly facilitate the debugging and testing of the monitoring system of mine conveyer belts.
Description
Technical field
A kind of mining conveying belt simulator adopts Single Chip Microcomputer (SCM) system to simulate the ruuning situations such as broken end, joint and speed of raw coal travelling belt in the mine, is used for the debugging and the test of mining conveying belt monitoring system.
Background technology
The down-hole travelling belt in colliery is the unique transfer passage that mines raw coal, and travelling belt breaks down, and can to cause raw coal to be delivered to aboveground, sinks into to pause thereby make to produce, and causes economic loss.So grasp the ruuning situation of travelling belt at any time, joint, the broken end of monitoring travelling belt can in time be pinpointed the problems, and avoid causing damage.
Along with the progress of colliery automatic technology, joint, the broken end of steel wire in the magnetic induction way monitoring travelling belt occurred adopting, and be sent to the system that control computer is handled by twisted-pair feeder or optical fiber.Fig. 1 is the existing typical monitoring system block diagram that adopts optical fiber as transmission medium, deliver to embedded type CPU 5 processing by multidiameter delay transducing signal 2 and rate signal 3 that Sensor box 1 is sent here through signal acquiring board 4, after being the ether signal, embedded type CPU 5 internal conversions send through ether optical transceiver 6 by Ethernet interface, the light signal of ether optical transceiver 6 outputs is delivered to ground through optical fiber 7, after ether optical transceiver 8 solves the ether signal, deliver to control computer 9, and store, analyze, show by control computer 9.System shown in Figure 1 can be monitored the transfer rate of joint, broken end and the travelling belt of steel wire in the travelling belt automatically, and can calculate position, the length of joint, broken end, for ground command center's decision-making provides intuitive and reliable foundation.
Because travelling belt generally is positioned at the down-hole, and the operation T.T. of every day has only 1～2 hour, single has only tens minutes working time, make the debugging and the test of travelling belt monitoring system very inconvenient, so need a kind of equipment that can simulate travelling belt ruuning situation, make the debugging and the test of travelling belt monitoring system can be in the laboratory or aboveground carrying out, reduce the time and the failure rate of site test.
The general length of mining conveying belt is more than 1000 meters, is formed by connecting by the travelling belt of many 100 meters length." three grades of overlap joints " mode is adopted in connection between the travelling belt, and the steel wire in the travelling belt overlaps according to mode shown in Figure 2, and then fixes by the mode of sulfuration.Owing to leave certain clearance between steel wire and steel wire, when travelling belt runs to sensing element 10 belows, on sensing element 10, will produce the train of impulses shown in 11～14, this train of impulses just can be represented the joint of travelling belt.When there is broken end in travelling belt, on sensing element 10, can produce single or multiple pulses, can represent the travelling belt broken end accordingly.In order accurately to know information such as joint length or broken end position, need know the travelling speed of travelling belt, so also need a speed pickup, produce accurate velocity pulse, usually the every 1mm of speed pickup produces a pulse, when line speed was 0.5m/s～5m/s, corresponding velocity pulse frequency was 0.5KHz～5KHz.
The effect of conveying belt simulator is exactly to produce above-described parallel sensing pulse and velocity pulse, the practical operation situation of simulation travelling belt.
Summary of the invention
The object of the present invention is to provide a kind of mining conveying belt simulator, adopt the ruuning situations such as broken end, joint and speed of Single Chip Microcomputer (SCM) system simulation travelling belt, greatly facilitate the debugging and the test of travelling belt monitoring system.
For achieving the above object, the present invention adopts following technical proposals:
A kind of mining conveying belt simulator, comprise that a master cpu connects a control computer by the RS232 serial ports, it is characterized in that described master cpu connects a serial Flash, described master cpu (17) connects a button display circuit, described master cpu (17) connects a rate signal driving circuit, and described master cpu (17) is by one and parallel transducing signal driving circuit of port expansion circuit connection; Described master cpu receives from the travelling belt transducing signal of described control computer by the RS232 serial ports and deposits serial Flash in; Described master cpu exports described and port expansion circuit by address data bus the travelling belt transducing signal in the described serial Flash; Described and port expansion circuit is exported 32 bit parallel transducing signals through described parallel transducing signal driving circuit; Described rate signal driving circuit will be transformed to the output of line speed signal from the square-wave signal of an IO mouth of described master cpu; Described button display circuit is used to realize man-machine interaction.
Described master cpu adopts the P89V51 chip, and the T2 counter of chip internal can be by the square-wave signal of P1.0 mouth output predeterminated frequency.
The described data that deposit serial Flash in are travelling belt transducing signals that actual measurement obtains, and change data at any time according to different travelling belts.
Described button display circuit can change the line speed signal when realizing human-computer interaction interface at any time, to simulate the travelling belt of different travelling speed.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage:
1, adopts the ruuning situations such as joint, broken end and speed of Single Chip Microcomputer (SCM) system simulation mining conveying belt, be convenient to the debugging and the test of travelling belt monitoring system; 2, transducing signal and the rate signal that the tape sensor of reality is exported deposits in the high speed serialization Flash storer, and recover out by Single Chip Microcomputer (SCM) system, the signal that conveying belt simulator is produced meets the practical operation situation of travelling belt, and can change data at any time according to different travelling belts; 3, can change the line speed signal at any time by human-computer interaction interface, to simulate the travelling belt of different travelling speed.
Fig. 1 typical case mining conveying belt monitoring system block diagram.
Fig. 2 adopts the mining conveying belt joint of three grades of overlap joints.
Fig. 3 system construction drawing of the present invention.
Fig. 4 storage frame structure.
Fig. 5 software flow pattern.
Embodiment
Details are as follows for the preferred embodiment of mining conveying belt simulator of the present invention:
Referring to Fig. 3, what master cpu 17 adopted is the P89V51 chip, and P89V51 is 51 compatible CPU, and inside has 64KFlash storer and 1K RAM storer, and master cpu 17 passes through the parallel transducing signal of RS232 interface reception from control computer 18, and passes through I
2C interface deposits serial Flash 15 in, master cpu 17 is by data, address and control bus control and port expansion circuit 19, and 32 road parallel signals of port expansion circuit 19 outputs (being equivalent to 32 steel wires in the travelling belt) are transported to the parallel transducing signal driving circuit 20 that is made of the MC1413 chip, parallel transducing signal driving circuit 20 outputs 32 tunnel parallel transfer band transducing signals 23.The square-wave signal of master cpu 17 output certain frequencies, the dutycycle of the square-wave signal of Yao Qiuing is 50% here, and frequency is 500Hz～5KHz, and square-wave signal is exit conveyor rate signal 22 behind rate signal driving circuit 21.The input end that the travelling belt monitoring system is directly received in 32 tunnel parallel transducing signal outputs 23 of conveying belt simulator and rate signal output 22, in order to meet the requirement of colliery intrinsic safety, the input end of travelling belt monitoring system adopts the extraneous input signal of light-coupled isolation, because the drive current of optocoupler is bigger, need increase parallel transducing signal driving circuit 20 of travelling belt and rate signal driving circuit 21 at the input end of simulator.
Fig. 4 is the data frame format that deposits conveying belt simulator serial Flash 15 in, totally 8 bytes.Preceding four byte B0～B3 are rate signal count value 24, and back four byte B4～B7 are parallel transducing signal 25.For conserve storage, what adjacent two frames 26,27 write down is the changing value of parallel transducing signal 25, does not change as parallel transducing signal 25, then need not store, and has been equivalent to eliminate the redundancy of signal.By this storage mode, the rate signal count value 24 of adjacent two frames 26,27 might be discontinuous.
The rate signal 22 and the parallel transducing signal 23 of tape sensor are all realized by software.The speed square-wave signal is produced by the P1.0 mouth of master cpu 17, when the T2 counter works of master cpu 17 inside during at the programmable clock output mode, can be by the square-wave signal of P1.0 mouth output certain frequency, output speed signal 22 behind rate signal driving circuit 21, rate signal 22 is consistent with the line speed transducing signal of line speed sensor output, the travelling speed of expression travelling belt, square wave frequency as output is 1KHz, then the travelling speed of corresponding travelling belt is 1m/s, as the higher travelling belt travelling speed of needs output, the preset value that only needs to change the T2 counter gets final product.In program, defined the local rate signal counting variable 29 of a nybble, the initial value of local rate signal counting variable 29 is preset as the rate signal count value 24 in first frame in the serial Flash 15, local rate signal counting variable 29 carries out the increment operation in the external interrupt that the P1.0 mouth triggers, the each interruption adds 1.
Fig. 5 is the output software flow process of travelling belt transducing signal 23, when program initialization, step 30 reads the rate signal count value 24 and the parallel transducing signal 25 of first frame, and step 31 will be in program loop deposits the rate signal count value 24 of first frame in local rate signal counting variable 29.Step 32～34 are major cycle, step 32 compares with local rate signal counting variable 29 with by the rate signal count value 24 that storer reads, when both are equal, step 33 will be exported by parallel port extended chip 19 by the parallel transducing signal 25 that storer reads, and step 34 reads the next frame signal in order to proceed comparison.Because local rate signal counting variable 29 is to carry out increment in the external interrupt of rate signal 22 triggerings of P1.0 mouth output, so in the master routine circulation 24 of local rate signal counting variable 29 and the rate signal count values that read by storer relatively be actually by rate signal 22 controls, make the parallel transducing signal 23 of parallel transducing signal 25 outputs of reading meet the sequential of the rate signal 22 of tape sensor according to storer.
The travelling belt Frame that deposits serial Flash 15 in is imported master cpu 17 by control computer 18 by the RS232 serial ports.The travelling belt Frame is the travelling belt data by the mining conveying belt sensor monitors of reality, meets the practical operation situation of travelling belt so more, and can change data at any time according to different travelling belts.
The effect by strong display module 16 among Fig. 3 is by man-machine interaction, realizes the demonstration and the control of some parameter, as the adjusting of rate signal 22 output frequencies.
By above narration as can be seen, the present invention adopts Single Chip Microcomputer (SCM) system to realize the simulator of mining conveying belt, and system hardware and software is simple.The travelling belt sensing data signals of simulator output is fully by real travelling belt conversion of signals, the output that makes the mining conveying belt simulator that the present invention constitutes is the ruuning situations such as joint, broken end and speed of real simulated mining conveying belt more, here by the reference specific embodiment the present invention is described in detail, but this only is an applicating example, should know that those of ordinary skill in the art can make various modifications and variations under situation about not departing from the scope and spirit of the present invention.
Claims (4)
1. mining conveying belt simulator, comprise that a master cpu (17) connects a control computer (18) by the RS232 serial ports, it is characterized in that described master cpu (17) connects a serial Flash (15), described master cpu (17) connects a button display circuit (16), described master cpu (17) connects a rate signal driving circuit (21), and described master cpu (17) is by one and port expansion circuit (a 19) connection parallel transducing signal driving circuit (20); Described master cpu (17) receives from the travelling belt transducing signal of described control computer (18) by the RS232 serial ports and deposits serial Flash (15) in; Described master cpu (17) exports described by address data bus the travelling belt transducing signal in the described serial Flash (15) and port expansion circuit (19); Described and port expansion circuit (19) is exported 32 bit parallel transducing signals (23) through described parallel transducing signal driving circuit (20); Described rate signal driving circuit (21) will be transformed to line speed signal (22) output from the square-wave signal of an IO mouth of described master cpu (17); Described button display circuit (16) is used to realize man-machine interaction.
2. mining conveying belt simulator according to claim 1 is characterized in that master cpu (17) adopts the P89V51 chip, and the T2 counter of chip internal can be by the square-wave signal of P1.0 mouth output predeterminated frequency.
3. mining conveying belt simulator according to claim 1, the data that it is characterized in that depositing in serial Flash (15) are travelling belt transducing signals that actual measurement obtains, and change data at any time according to different travelling belts.
4. mining conveying belt simulator according to claim 1 is characterized in that button display circuit (16) can change line speed signal (22) at any time when realizing human-computer interaction interface, to simulate the travelling belt of different travelling speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100394169A CN101303814B (en) | 2008-06-24 | 2008-06-24 | Mining conveying belt simulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100394169A CN101303814B (en) | 2008-06-24 | 2008-06-24 | Mining conveying belt simulator |
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| CN101303814A CN101303814A (en) | 2008-11-12 |
| CN101303814B true CN101303814B (en) | 2010-11-17 |
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| CN2008100394169A Expired - Fee Related CN101303814B (en) | 2008-06-24 | 2008-06-24 | Mining conveying belt simulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102263908A (en) * | 2010-05-26 | 2011-11-30 | 北京好易控科技有限公司 | Serial port communication and image signal switching control system |
| CN103996345B (en) * | 2014-05-14 | 2016-03-02 | 武汉科技大学 | A kind ofly simulate ore when drop shaft mouth unloads ore deposit and enter the initial velocity Control release device of well |
| CN104091507B (en) * | 2014-05-14 | 2016-03-30 | 武汉科技大学 | A kind of drop shaft of simulating slips the experimental provision in ore deposit |
| CN104992612B (en) * | 2015-08-03 | 2017-12-12 | 太原理工大学 | V belt translation characteristic parameter teaching mode demonstrator |
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