CN105278438B - A kind of method and monitoring circuit of the transmission of coke-oven locomotive data radio and monitoring - Google Patents
A kind of method and monitoring circuit of the transmission of coke-oven locomotive data radio and monitoring Download PDFInfo
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- CN105278438B CN105278438B CN201410284012.1A CN201410284012A CN105278438B CN 105278438 B CN105278438 B CN 105278438B CN 201410284012 A CN201410284012 A CN 201410284012A CN 105278438 B CN105278438 B CN 105278438B
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Abstract
A kind of transmission of coke-oven locomotive data radio and the method and monitoring circuit of monitoring, mainly solve the technical problem that present wireless transmitted signals are unstable, data are easily lost.The technical scheme is that：A kind of method of the transmission of coke-oven locomotive data radio and monitoring, comprises the following steps, gathered data, establishes database：Each heat (batch) number two-dimensional array is worked out, works out a locomotive state two-dimensional array；Data inspection：Check whether heat (batch) number and locomotive state two-dimensional array change in locomotive operation, when not changing, locomotive continues to run with, when change, into next step；Radio frequency status monitoring：It is whether normal that radio frequency state is monitored by monitoring circuit, carries out human intervention when abnormal, when normal, into next step；Data transmit：Transmit the two-dimensional array of locomotive running state；Data receiver and forwarding：Data are received, judge and forwarded by fixed telecommunication PLC；Data decode and interlocking communication：Each base station carries out two-dimensional array decoding, more cars interlocking communication of control device after receiving data.The present invention is used for data transfer and the monitoring in coke oven region.
Description
Technical field
The present invention relates to a kind of transmission of data and monitoring, the more particularly to a kind of transmission of coke-oven locomotive data radio and monitoring
Method and monitoring circuit.
Background technology
In coke oven region, in order to realize that four cart automatic safes under adverse circumstances interlock, because the locomotive speed of operation
Height, is unpractical using wire communication mode, that is, cable transmission data, thus the interlocking usually between locomotive, locomotive and coke oven it
Between interlocking instruction between fixed equipment by being transmitted between locomotive transmitting base station and fixed base stations, its data mode just and
Bluetooth easily goes wrong as wifi, but in practical applications at present, i.e., by being wirelessly transferred some data, and it is normal
Wireless data transmission mode is the same similar to wire communication, i.e. transmission in time, once there are data to send immediately, data
Amount is big, and receiving easily loses data, such as：Because the actual control area of coke oven is big, it is wirelessly transferred and signal strength problem occurs, such as
Influenced by devices such as high frequencies, receive base station and the data between locomotive such as occur disturbing be easily lost, and these deficiencies directly after
Fruit is exactly that four-cart safety interlocking cannot carry out, and operational risk is very big, after especially realizing automatic traveling function, suddenly
Disable or data transfer is lost, system communication PLC fetching portion data, and meet other interlock conditions just, such behaviour
It is breakneck when making.
Usually in coke oven region, it is such that it, which transmits data mode, and data transfer is instant messaging, i.e., once there is data
Spreading out of immediately, such data volume is big, and transmission frequency is high, such as, for example coke guide needs to carry out connecing Jiaozhuo industry, at this moment coke guide
The heat (batch) number position specified will be run to, after coming to a complete stop, a positional information is sent by system PLC, at this time receives base station receipts
To after information, information processing is completed, hair coke guide address bit, equally also can be motor to pusher machine, electric locomotive and coal car
After the completion of the information of car, pusher machine and coal car is collected, the vehicle of other interlockings is respectively issued to, here it is wireless contraposition, it is ensured that
Locomotive all on the position that this has, just can guarantee that the completion of coke pushing technique, otherwise easily occur because some train number is not in original
Come on position, and cause coke pushing technique to complete either to go out security incident, for example coke guide is not in the heat (batch) number position that this has
On, the direct coke pushing of pusher machine, it is possible to Jiao is released outside stove, can be deposited in by the guiding of coke guide coke guide, coke
Go to and electric locomotive cannot be entered, or coke guide to overthrowing, such many coke-oven plants of accident all occurred, it is basic former
Because being exactly because wireless contraposition poor signal, caused by causing manually contraposition, before coke pushing starts, coke guide can pass through locomotive CPU
The instruction that a dedusting fan carries out high-speed cruising is sent, instructs and is sent by transmitting base station, asked if receiving signal
Topic, then dedusting fan would not high-speed cruising, cause serious environmental pollution.All these control processes are all derived from wirelessly
The acceptance problem to data is communicated, and routine techniques is exactly that data are sent out using point-to-point form to data processing, its
Radio-frequency communication ceaselessly mutually transmits data just as communicating wire cable, such as dedusting high-speed cruising signal, hair
What is gone out is exactly dedusting instruction, other instructions are not made an amendment, or what is sent out is several signal instructions, when losing
When losing an instruction, do not supplement, just occur full automatic cannot carry out completely.
The content of the invention
It is an object of the invention to：A kind of method and monitor electricity of the transmission of coke-oven locomotive data radio and monitoring is provided
Road, mainly solves the technical problem that present wireless transmitted signals are unstable, data are easily lost.
The technical scheme is that：A kind of method of the transmission of coke-oven locomotive data radio and monitoring, comprises the following steps,
Gathered data, establishes database：Each heat (batch) number two-dimensional array is worked out, works out a locomotive state two-dimensional array；
Data inspection：Check whether heat (batch) number and locomotive state two-dimensional array change in locomotive operation, when not changing,
Locomotive continues to run with, when change, into next step；
Radio frequency status monitoring：It is whether normal that radio frequency state is monitored by monitoring circuit, is artificially done when abnormal
In advance, when normal, into next step；
Data transmit：Transmit the two-dimensional array of locomotive running state；
Data receiver and forwarding：Data are received, judge and forwarded by fixed telecommunication PLC；
Data decode and interlocking communication：Each base station receives and two-dimensional array decoding is carried out after data, control device it is more
Car interlocking communication.
A kind of monitoring circuit, the high-pass filter and inductance L1 received signals of inductance coil L2 and C1 compositions are via two
After the voltage-multiplying circuit rectification of pole pipe VD1, VD2 and capacitance C2 compositions, a direct current signal is obtained, the direct current signal is through two level amplifier electricity
Ammeter is inputted after the amplification of road, each component connects working power.
The advantageous effects of the present invention：The present invention can more accurate delivery data, and actual data transfer amount of bytes is few,
The loss of actual control data is reduced, while detects the wireless signal at scene, is shown after processing by meter, observational measurement
The intensity of wireless telecommunications, when signal is low, alarms, manual intervention, avoids because loss of data causes locomotive operation out of control
Danger.
Brief description of the drawings
Fig. 1 is transmitted with monitoring flow chart for data of the present invention.
Fig. 2 is monitoring circuit figure of the present invention.
Embodiment
With reference to Fig. 1, a kind of method of the transmission of coke-oven locomotive data radio and monitoring, comprises the following steps,
Gathered data, establishes database：Each heat (batch) number two-dimensional array is worked out, works out a locomotive state two-dimensional array；
Data inspection：Check whether heat (batch) number and locomotive state two-dimensional array change in locomotive operation, when not changing,
Locomotive continues to run with, when change, into next step；
Radio frequency status monitoring：It is whether normal that radio frequency state is monitored by monitoring circuit, is artificially done when abnormal
In advance, when normal, into next step；
Data transmit：Transmit the two-dimensional array of locomotive running state；
Data receiver and forwarding：Data are received, judge and forwarded by fixed telecommunication PLC；
Data decode and interlocking communication：Each base station receives and two-dimensional array decoding is carried out after data, control device it is more
Car interlocking communication.
Data radio transmits and monitoring is specially：It is exactly one two that four all carts, which instruct relevant Wireless transceiver instruction,
Dimension group, it is exactly state that heat (batch) number corresponds to position that the previous position of this two-dimensional array is corresponding, and latter position is exactly fixed equipment control
The vicenary conversion of position, such as after coke guide comes to a complete stop No. 65 positions, mode bit is normal, and output control has five outputs,
Binary code for for（1、1、1、1、1）, into 31 after the decimal system is changed, then No. 65 heat (batch) number positions will export one two
Tie up code（65,31）Another array is exactly locomotive oneself state array, and locomotive is given digital attached one beyond removing heat (batch) number,
Such as：120 hole coke ovens, its heat (batch) number value is finally to 120, then engine number position 121 is assigned, and some states of locomotive are two-dimemsional number
The binary to decimal conversion of other states of group and go out, so what locomotive state equally exported is a two-dimensional array.Coke guide exists
No. 65 heat (batch) number positions, dedusting guide sleeve opening etc., this is the state that coke guide is in No. 65 heat (batch) number positions normal work monitoring, these are believed
Breath all occupies each position in one-dimensional data storehouse respectively, and when there is the state must being fulfilled for be unsatisfactory for, such as dedusting guide sleeve does not have
There is opening in place, then the position for the condition of being unsatisfactory for just occurs in the one-dimensional data storehouse, then the mode bit of two-dimensional array would not be defeated
Go out 65 codes for heat (batch) number, and the control bit control device for corresponding to No. 65 heat (batch) numbers is all fixed on the fixed bit of control bit, example
Such as open the high speed instruction of dedusting fan, the control bits of corresponding No. 65 stove positions is the 4th position, it is necessary to which output control position is just by " 0 "
Become " 1 ", if there are 5 in No. 65 heat (batch) number control bits, originally control is（1、0、0、1、1）, it is necessary to after opening dedusting fan, control
Position processed becomes（1、1、0、1、1）, its data code becomes（65,27）, and all letters sent every time to coke oven fixed telecommunication PLC
Number all it is a two-dimensional array.And after coke oven fixed telecommunication PLC receives two-dimensional array, decoded, 65 it is corresponding be stove
Number position, the latter data are that it controls carry-out bit, so carry out duodecimal conversion, carry out the control of equipment output.In order to
Can guarantee that the functions such as coke-oven locomotive etc. is full-automatic, the transmission of these two-dimensional arrays must accurately, it is timely, therefore before data is transmitted
Signal between base station is detected, judges signal strength, is repeatedly transmitted for weak signal, so in transmission base station
On, it is provided with and receives data-signal monitor, judges the power of interactive signal.
So the equipment that the corresponding heat (batch) number position in all positions of coke oven and heat (batch) number position where it control all is fixed, therefore its
Two-dimensional array is also very fixed very simple, and such data exchange amount is few, because having the guarantee of this quantity of state of heat (batch) number position, Jiu Huibao
Demonstrate,prove data transmission after judgement, and heat (batch) number also can according to the coke oven production schedule in coke-oven locomotive and fixed telecommunication PLC same current events
First set, so the heat (batch) number position for locomotive two-dimensional array is also to carry out according to certain rules, be not in deviation, so pressing
Such rule, system fixed telecommunication PLC judges the heat (batch) number position that next locomotive is sent, if not by prior
Rule so data structure mistake, once because heat (batch) number position is inaccurate, coke oven fixed telecommunication PLC is to other control bits
Avoid the need for being judged and compile, this is a safety assurance.
After realizing such stateful and instruction to each heat (batch) number position using two-dimensional array transmission, it can carry out
Very multi-functional extension, for example carry out feedback acknowledgment that data have received etc., because such flow becomes simple, data
Simple, interaction is a digital code, rather than a series of instruction and state.
With reference to Fig. 2, a kind of monitoring circuit, the high-pass filter of inductance coil L2 and C1 compositions and the letter of inductance L1 receptions
After number voltage-multiplying circuit rectification formed via diode VD1, VD2 and capacitance C2, a direct current signal is obtained, the direct current signal is through two
Ammeter is inputted after level operational amplifier circuit amplification, each component connects working power.
Inductance coil L2 and C1 constitutes simple high-pass filter, to prevent that it is dry that low-frequency ac signal from producing circuit
Disturb.Inductance L1 can access circuit filter out low frequency, intermediate frequency and part high-frequency signal, further suppress the interference of outer bound pair circuit；
The effect of shunt capacitance C2 is to be shorted to ground by radiofrequency signal；Resistance R1 makees the load of voltage-doubler rectifier.
The direct current signal is added to the in-phase input end of the first operational amplifier circuit IC1Foot.
The two level operational amplifier circuit, the output of the first operational amplifier circuit IC1 and the in-phase input end of the second operational amplifier circuit IC2
Foot links together, potentiometer by adjust the second operational amplifier circuit feedback voltage level, to adjust the sensitivity of ammeter.R9 is adjustable
Economize on electricity meter reading, while prevents excessive voltage from causing to damage to ammeter in the case where the second fortune circuit puts saturation.Capacitance C3
Effect be any random fluctuation on smoothed output signals.
The gain of first operational amplifier circuit IC1 is determined that their ratio, which determines, to be fed back to by the intrinsic standoff ratio of resistance R4 and R5
The signal level size of amplifier anti-phase input end feet.The resistance R2 and R3 combined returns to zero adjustable current, so that
In the case of no signal, adjustable meter pointer is designated as 0.
Working power use ± 9V dual power supplies, the power supply can use battery powered, can also be straightened using 220V AC voltage
± 9V power supplys power supply after stream, voltage stabilizing.
In use, select the low germanium diode of conduction level first, so can be frequency response speed in circuit and
Sensitivity is improved, and indicating meter can use the gauge outfit of 1mA, and 1K Ω potentiometers be placed in the position of R3, and by its center
Tap is placed on centre position, is used as zero potentiometer, then adjusts R7, and the general-purpose meter reading for making to be serially connected in C3 both ends is 0, is gone
Fall universal meter, connect detection signal used in 1mA gauge outfits, gauge outfit output dry contact, be sent into locomotive fixed telecommunication PLC, when less than
During certain numerical value, fixed telecommunication PLC carries out more frequency outputs in output data code, is carried out at the same time prompting, reminds operator
Member is likely to occur data and does not transmit the prompting for needing manual confirmation, is adjusting R7, gauge outfit is designated as 0, at this moment return to zero current potential
Device R3 taps are in centre, and sensitivity control is arranged on maximum, then measure potentiometer R7 centre caps to the resistance value at both ends, with admittedly
Determine resistance replacement.In use, L2 is that low frequency receives antenna, and for detecting the signal of 100KHz, gauge outfit is with signal
Strong and weak and swings, when detect high-frequency signal, connection HF switch SA1 makes L1 access circuits, can thus realize different letters
Signal detection between number transceiver, is disturbed or to occur power unstable so as to judge that locomotive communication is bad, while
The quality of signal transmission apparatus, when signal is normal between signal base station transceiver, locomotive and fixed telecommunication can qualitatively be measured
Data are normally transmitted between PLC, and when signal strength occur and being less than setting value, it is necessary to be carried out repeatedly to the two-dimensional array of transmission
Send, it is ensured that fixed telecommunication plc data receives arrival rate, because being transmitted using two-dimensional array, as long as data can connect
It is subject to, the phenomenon for losing code would not occurs, while locomotive fixed telecommunication PLC reminds manual intervention to confirm, is prepared to enter into urgent hand
Dynamic state.
Wireless transceiver between the locomotive of two-dimensional array and fixed telecommunication PLC base stations in this way, plus supporting transmitting-receiving
The strong and weak detection of signal, can smoothly carry out the interlocking between locomotive and system and full-automatic manipulation.
Claims (2)
1. a kind of coke-oven locomotive data radio transmission and the method for monitoring, it is characterized in that：Comprise the following steps,
Gathered data, establishes database：Each heat (batch) number two-dimensional array is worked out, works out a locomotive state two-dimensional array；
Data inspection：Check whether heat (batch) number two-dimensional array and locomotive state two-dimensional array change in locomotive operation, when not changing
During change, locomotive continues to run with, when change, into next step；
Radio frequency status monitoring：It is whether normal that radio frequency state is monitored by monitoring circuit, carries out human intervention when abnormal, when
When normal, into next step；
Data transmit：Transmit locomotive running state two-dimensional array；
Data receiver and forwarding：Data are received and forwarded by the PLC of fixed telecommunication；
Data decode and interlocking communication：Each base station carries out two-dimensional array decoding, more cars connection of control device after receiving data
Lock communication.
2. a kind of coke-oven locomotive data radio transmission according to claim 1 and the method for monitoring, it is characterized in that：Described
Monitoring circuit is：The working power series connection of two 9V, the cathode of tandem working power supply connect switch S2A, switch the S2A other end point
The 7. foot of the first operational amplifier circuit IC1 and the second operational amplifier circuit IC2 are not connect, through the first operational amplifier circuit IC1 and the second operational amplifier circuit IC2
4. foot connecting valve S2B, the anode of another termination tandem working power supplys of switch S2B, switch SA1 and inductance coil L1, capacitance
C1, diode VD2, which are sequentially connected in series, is followed by the in-phase input end of the first operational amplifier circuit IC1 3. foot, the switch SA1 other ends and ammeter,
Resistance R9, which connects, is followed by the 6. foot of the second operational amplifier circuit IC2, and inductance coil L2 is in parallel with inductance coil L1, inductance coil L2 one end
Inductance coil L1 output terminals are connect, another termination switch SA1 other ends of inductance coil L2, diode VD1 is in parallel with inductance coil L2,
Diode VD1 cathodes connect capacitance C1 output terminals, and diode VD1 anodes connect the switch SA1 other ends, and capacitance C2 and diode VD1 is simultaneously
Connection, mono- terminating diode VD2 cathodes of capacitance C2, another termination switch SA1 other ends of capacitance C2, resistance R1 is in parallel with capacitance C2,
Mono- terminating diode VD2 cathodes of resistance R1, another termination switch SA1 other ends of resistance R1, adjustable potentiometer R3 and resistance R2 go here and there
Connection, 1. foot, adjustable potentiometer R3 the first amplifiers of another termination are electric for the first operational amplifier circuit IC1 in-phase input ends of another terminations of resistance R2
5. foot, the centre tap of adjustable potentiometer R3 connect the 4. foot of the first operational amplifier circuit IC1, the first amplifier electricity to road IC1 in-phase input ends
2. foot connects the intermediate point of series resistance R4, R5, the 6. foot of the first operational amplifier circuit IC1 of another terminations of resistance R4 and the second fortune to road IC1
The in-phase input end intermediate point that 3. foot connects of electric discharge road IC2, another termination switch SA1 other ends of resistance R5, the second amplifier
In the 2. foot connecting resistance R6 of IC circuit 2, adjustable potentiometer R7, resistance R8 series arms among resistance R6 and adjustable potentiometer R7
Point, the centre tap of adjustable potentiometer R7 connect the 2. foot of the second operational amplifier circuit IC2, resistance R6 the second operational amplifier circuits of another termination
The 6. foot of IC2, another termination switch SA1 other ends of resistance R8, capacitance C3 is in parallel with ammeter, and capacitance C3 mono- terminates ammeter cathode,
Another termination ammeter anode of capacitance C3, ammeter anode are also connected with tandem working power supply intermediate point.
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