CN105829917B - Synchronous method and system for earthquake and barisal guns measurement network (the especially mining site network of essential safety) - Google Patents
Synchronous method and system for earthquake and barisal guns measurement network (the especially mining site network of essential safety) Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
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- G—PHYSICS
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Abstract
A kind of synchronous method of earthquake and barisal guns measurement network, the especially method of the synchronization of the mining site network of essential safety, it is characterized in that, periodically starting the measurement for traveling to transmitter (ND) and the time adjustment (2Ki) returned from receiver (OD) to signal in each transmission channel.Then, in the phaselocked loop containing real-time clock (RT) of the receiver (OD), the shifted second internal reference beat (TWa) as correction is generated in a continuous mode, the shifted second internal reference beat shifts forward time adjustment (Ki) relative to the second benchmark beat (TW) from clock (GPS) in phase, wherein the internal clocking (RT) has shifted forward the time adjustment (Ki) simultaneously.Furthermore, in continuous mode, more multi-frequency relative to the second benchmark beat (TW) with (N) again, preferably, 250 times of more multi-frequency generates the internal synchronization beat (TSa) that correction time (Ki) is shifted forward in phase, provides supply-separation inverter (PZ) output of power to remote transmission route (TR) with keying in essential safety.Semiconductor key (KL) of the system containing the receiver (OD) for shortening remote transmission route (TR) in the linear block (BL) of receiver (OD) designed for the method, the semiconductor key are connected to the output end (b) of microcontroller (MK) via the input terminal of the conveying electric separator (transoptor galvanic separator) (SG2) of the linear block (BL).In transmitter (ND), the formation block (UF) of synchronous beat (TS) is connected on transmitter linear block (BLN) via capacitor (C).The output end for forming block (UF) is connected on one of input terminal of phase detectors (DFN) of microcontroller (MKN) of transmitter.Conveying electric separator (SG3 and SG4) of the transmitter linear block (BLN) containing signal.
Description
Technical field
The present invention relates to a kind of synchronous method and system for earthquake and barisal guns measurement network, especially essential safety
Mining site network synchronization method and system.
Background technique
The particularity of earthquake in mining site and barisal guns measurement network is because of their spatial positions in the mining site operation of underground
And it causes.Depending on Digital Transmission reception box include multiple digit receivers these systems in position and make measure net
The synchronous GPS signal of network is directly fed into network or passes through mining site wired ethernet or 1588 network of optical fiber IEEE from mining site
Terrestrial transmission.By digit emitter, (digit emitter connects each measurement channel in number mining geophysical survey network
Onto geophone or goephone) and digit receiver composition, digit emitter and digit receiver are by individually having
Line remote transmission bus links together.
The digit emitter cooperated with geophone or goephone is close to through exploitation longwell positioning.For transmission measurement number
According to they are most-often used to allow to provide the single remote transmission route of center power supply and two-way from digit receiver to transmitter
Synchronous transfer.Digit receiver is equipped with the digital microcontroller with internal clocking, and supply and separation inverter.It is connected
On to GPS clock and via on remote transmission connection to digit emitter.Digit emitter includes microcontroller, essence
The separation system and A/D converter of safety.
Poland Patent PL 211622B1 discloses a kind of method and network for geophysical data acquisition, especially needle
Geophysical data acquisition to the slow wave shape for the point specified in selected broad area.The invention includes to each survey
The signal collected at amount point is sampled simultaneously and is independently recorded at this point.The reading of geophysical signal and external time reference
Standard synchronisation.It is recorded in the signal value of each measurement point.The signal value is collected in measurement point after analogue to digital conversion
In data medium, it is preferable that in compact flash cards.Collection regardless of signal, all by them via transmission network (preferably
Ground, internet and/or gsm mobile telephone) from all the points it is sent to gathering station online, wherein can be in gathering station and/or transmission
When network does not work suspend information transmission, and can restore after an interrupt since transmission interrupt when biography
It is defeated, missing information is supplemented from compact flash cards.Sampling is by calibration from external fixed while the signal of each measurement point
When benchmark (preferably, GPS and/or DCF transmitter) timing signal synchronize.This promotes identification to receive in different measurement points
Signal between phase relation.
The known method and system for recording the synchronization of the measurement network of geophysical signal uses the outer of GPS system
Portion's timing base synchronizes measure these.They cannot provide sufficiently accurate synchronization, be primarily due to them and do not account for
Remote transmission line propagation institute associated delay of the signal along different length.For this reason, it is impossible to obtain earthquake thing
The acceptable accurate positioning of part.When using actively and passively topographic imaging by velocity, especially for the zonule (example of rock mass
Such as, in the front of longwell, wherein the time delay of imaging wave is minimum and suitable with the delay in remote transmission route) imaging
When, the forntier region of adjacent mining site especially such case.
This is also critically important in the case where wherein propagation delay is likely to be breached the barisal guns signal measurement of the 10% of sampling interval.
A/D converter, which is commonly used in, handles signal using high-frequency and digitally in the processing system of trap signal.For
Reach ready state and obtain the data of the synchronized processing in the accurately determining sampling time, needs sufficiently to control its work
Frequency.Depending on the operation mode of converter, it there is a need to consider the time for handling and filtering for analog/digital.Existing system is not
It can solve the problem of causing measurement error, especially when observing the zonule of rock mass.
Summary of the invention
Subject invention
It is an object of the present invention to by earthquake and barisal guns network it is improved synchronize come improve use now for earthquake
The method and system synchronous with barisal guns network.This purpose will be by adjusting the delay time in remote transmission route and separately
Time and completion used in outer processing and digital filtering by implementing in A/D converter used in these networks of correction
It is realized with the time needed for transmission data block.
Summary of the invention
In the earthquake proposed in the synchronous method of barisal guns measurement network, periodically opened in each transmission channel
Beginning travels to transmitter from receiver to signal and is propagated back to the measurement of the time adjustment of the receiver from the transmitter.
Then, it in the phaselocked loop including internal clocking of receiver, is generated in a continuous mode as inside shifted second corrected
Benchmark beat, the shifted second internal reference beat is relative to the second base from the synchronous clock of Global Navigation Satellite System
The advanced time adjustment in phase of quasi- beat, wherein shifts forward while internal clocking equal to time adjustment.Also continuous
In mode, when compared with the second benchmark beat, with more multi-frequency, it is preferable that 250 times of more multi-frequency generates in phase
The advanced internal synchronization beat of correction time value.This internal beat keys in the output of supply-separation inverter, thus essence peace
Power is provided to remote transmission route entirely, and passes through this route to A/D converter, the A/D converter control hair
The phaselocked loop of emitter includes feedback coupling.This task is realized, so that the ready successive arteries and veins in synchronous beat of A/D converter
With more multi-frequency compared with synchronous beat between punching, it is preferable that 40 times of more multi-frequency occurs, and for synchronous with this beat
Ready state number, it is preferable that 40 ready state occurs primary and preferably for synchronous with the second benchmark beat
Every one 10,000 measurement occur it is primary.This causes to be obtained in the receiver in each period of the second synchronous beat from ground
The measuring data block that shake detector or goephone probe sample analogue component.Then, excellent by subtracting for software realization
Select the constant time adjustment delay of 8ms come further adjust to by the descending slope moment in the second benchmark beat from inside
The real time that first sample is sampled in the measurement data packet for the measurement result block composition that clock obtains, (it had been contemplated that far
Signal delay in journey transmission line), the constant delay by complete in the transmitter measurement result measuring data block when
Between include in (its a cycle for being equal to synchronous beat) and measuring data block measurement result measuring data block with number
The time (being also equal to make a cycle of the beat of transmitter synchronization) that sample form is transmitted to receiver from transmitter generates.To the greatest extent
Pipe supports several element propositions of the system of the invention of method of the invention to be realized with software mode, but neck of the invention
The technical staff in domain is it is evident that they can also be realized with hardware mode.Therefore whenever the device for referring to software realization
When, it should be clear that identical device can be implemented as hardware.Software service in the case where selected is more cheaper than hardware and more square
Just.General description and embodiment of the invention should not be understood with the narrow meaning of only software service.Phaselocked loop is using
It is realized in the receiver of microcontroller by software.Phase detectors are programmed with constant the second measured benchmark beat
Time adjustment value.Phase detectors control pulse width modulator, and pulse width modulator is via low-pass filter control voltage controlled oscillator
Input.The output signal of this oscillator is when the internal time divider point by software set removes, to the inside of microcontroller
Time hardware clock provides beat.Therefore the second internal reference beat is obtained, relative to from Global Satellite Navigation System
Second benchmark beat has shifted forward time adjustment value in time, equal to the signal transmitted in remote transmission route delay when
Between.By internal time divider point except the frequency of voltage controlled oscillator, internal synchronization beat is obtained, preferably with every 4ms hair
It is sent to transmitter.This beat is with than shifted second internal reference beat more multi-frequency, it is preferable that 250 times of more multi-frequency
Synchronize its operation, it is contemplated that the second inside beat is relative to coming since Global Satellite Navigation System is synchronous in each transmission channel
The benchmark beat of clock its pulse different time correction.This corrects oneself by previously having carried out in given remote transmission route
Dynamic delay measurements generate.In the transmitter, synchronization signal control passes through the locking phase of software realization in the microcontroller of transmitter
Ring.The output frequency of the voltage controlled oscillator of locking phase circumferential direction transmitter provides feedback come the A/D converter of timing.Length with
The low-pass filtering that the directly proportional signal of the phase error of the output of the programmable phase detector of transmitter passes through transmitter
Device is introduced into the input terminal of this oscillator, and the impulse phase of the relatively more synchronous beat of the signal divides with by synchronous beat divider
Those of ready pulse acquisition except A/D converter impulse phase.Therefore, in the output of transmitter, with synchronous beat
The synchronously number serial in the transient state for obtaining the measuring data block form in sampled result sampled to signal imitation component
Word result.Meanwhile in the receiver of cooperation with the second benchmark beat synchronously obtain in measurement result measurement data number
According to the numeric results of packet form, the block in the result transmits between the subsequent pulses of synchronous beat.In addition, in order to improve
The accuracy of the synchronization of signal sampling in receiver channels is equal to processing the sum of the time and digital filtering time by addition subtracting
Time constant correction value, to be obtained by the descending slope moment of the second benchmark beat from internal clocking by software correction
The sampling time of first sample in the data packet of the measuring data block composition obtained.It is synchronous with barisal guns measurement network for earthquake
System has the embedded semiconductor key for shortening remote transmission route in the linear block of receiver.The key is via the defeated of linear block
Power transmission separator (transoptor galvanic separator) input terminal is connected to the output end of microcontroller.Transmitter
With the block for forming synchronous beat, the described piece of linear block for being connected to transmitter by capacitor.Form the output end connection of block
On one of input terminal of phase detectors of microcontroller to transmitter.The linear block of transmitter contains two of signal
Convey electric separator.The control diode of conveying electric separator output end in transmitter linear block, with other three two poles
Pipe is connected to Gray hereby in (Graetz) rectification circuit together, and transmitter linear block is connected to remote transmission by the rectification circuit
On route.The output end of this conveying electric separator is connected on the data input pin of transmitter microcontroller, and transmitter micro-control
The data output end of device processed is connected on the control diode of conveying electric separator input terminal of transmitter linear block, the transmitting
The semiconductor key control that the output end of device linear block passes through the transmitter of key entry remote transmission route.The output linear block of receiver
The output end of conveying electric separator be connected on the input terminal of microcontroller, and control diode of this conveying electric separator will
Supply-separation inverter is connected on remote transmission route via current limiter.Receiver is equipped with phaselocked loop comprising having can
The phase detectors of software realization of programming time correction, the hardware oscillator with programmable pulse width, be connected to it is voltage-controlled
Hardware low pass filter on oscillator, output end are connected on internal time divider.Voltage controlled oscillator is via internal same
The linear block of step beat divider, accumulative node and receiver is connected on remote transmission route.
Transmitter is equipped with phaselocked loop comprising has the impulse generator of the width of software realization and is connected to hair
The hardware low pass filter of voltage-controlled transmitter on the voltage controlled oscillator of emitter, the output end of the transmitter oscillator
It is connected in the control signal of analog-digital converter.The ready output terminal of analog-digital converter is via the pulse determined in synchronous beat
Between one of the divider of measurement number that executes and transmitter phase detector input terminal connect, another output end warp
It is connected in the linear block of transmitter by formation system and capacitor.
Invention effect
System and a method according to the invention provides precise synchronization for each channel of conjunction measuring earthquake and barisal guns network,
The signal propagation delays in the route of different length are considered, and the letter of the vibration from seismic sensor and/or goephone
Number three-component sample deadline and there are also the processing of signal and numbers time from transmitter serial transmission to receiver
The Time constant of filtering.The present invention significantly reduces measurement error, this executes the positioning of seismic events simultaneously in the zonule of rock mass
And using by being even more important when these phenomenons or the seismic imaging excited by active method.
Detailed description of the invention
Exemplary embodiment of the present invention is presented in the accompanying drawings, and wherein Fig. 1-shows earthquake and barisal guns measurement in mining site
The schematic diagram of network, Fig. 2-show to measure an example of transmission channel used in seismic survey network and implement at synchronization
The basic time for the signal specific that the block diagram of the system of reason and Fig. 3-presentation are transmitted in the circuit of fig. 2 schemes.
Specific embodiment
Example I (method)
According to the method for the present invention, periodically start to travel to hair from receiver OD to signal in each transmission channel
The measurement of emitter ND and the time adjustment 2Ki of return.Then, in receiver OD, in the phaselocked loop containing internal clocking RT
In, continuously generate shifted second benchmark beat TWa with correction mode, the shifted second benchmark beat relative to from
Second benchmark beat TW of GPS clock acquisition advanced time adjustment Ki in phase, wherein the time in internal clocking RT
Time adjustment value Ki has been shifted forward simultaneously.Equally in continuous mode, relative to the second benchmark beat TW with N=250 times
More multi-frequency generates the advanced internal synchronization beat TSa of time adjustment Ki in phase, passes to long-range with keying in essential safety
Defeated route TR provides supply-separation inverter PZ output of power, and the work of the phaselocked loop by its control transmitter ND
Make, comprising the A/D converter AC by feedback coupling trigonometric integral type, so that the ready R of A/D converter AC is in synchronization
Occur between the succeeding impulse of beat TS compared with synchronous beat TS with NP=40 times of more multi-frequency, and for being synchronized to this
The ready R state of the NP=40 of beat occurs once and for (NNP)=10,000 synchronous with the second benchmark beat TW
Measurement occurs primary.Therefore, it in each circulation of synchronous beat TS, obtains from seismic sensor S1 or listens in receiver OD
Block BNP of the ground device probe G1 to analogue component X, Y and Z measurement data sampled.In each of the second benchmark beat TW
In period, the data packet being made of 250 measuring data block BNP is obtained.By the constant delay for subtracting 8ms of software realization come
Further adjustment is in first piece of BNP of measurement data in the measurement result packet collected at the time T1 of internal clocking RT
Real time (it has been contemplated that the signal delay in remote transmission route TR) for being sampled of first sample, 8ms's is constant
Postpone the time of the measuring data block BNP by completing measurement result in transmitter ND (equal to a cycle of synchronous beat TS)
And the measurement result in measuring data block BNP including is transmitted to the time of receiver OD in the form of numeral sample from transmitter ND
(a cycle for being also equal to synchronous beat TS) generates.
In addition, each three-component for both barisal guns and earthquake measures channel (X, Y, Z), automatically carry out to delay
(it is produced by corresponding to this channel and transmitter ND being linked to the signal propagation time in the remote transmission route TR of receiver OD
It is raw) time adjustment Ki measurement.In order to improve the signal sampling in receiver OD channel synchronization accuracy, by addition
The time for being equal to the Time constant correction Tac of the sum of processing time Tp and digital filtering time Tf is subtracted, to adjust in time T1
The sampling time of place's first sample from the data packet being made of N number of measuring data block BNP that clock RT is obtained.
In each receiver OD, the use of microcontroller MKO is scheduled in phaselocked loop and includes: pre- with software
If the phase detectors DF of time adjustment value Ki, the pulsewidth modulation that is controlled from phase detectors output end DF by phase error
Device PW, the low pass hardware filter FD for controlling hardware voltage controlled oscillator GP, the output of the low pass hardware filter when divided by with
When the divisor 1/NS of the internal time of programming mode setting, to hardware internal clocking RT timing, the internal clocking is when starting
To the current astronomical time NMEA transmitted in procedural agreement is scheduled on, due to the above-mentioned phaselocked loop of receiver, shifted second is obtained
Benchmark beat TWa, the shifted second benchmark beat relative to the second benchmark beat TW from GPS clock in time to
Anterior displacement time adjustment Ki, wherein shifted forward while local zone time equal to time adjustment value Ki in internal clocking RT.
By obtaining the frequency FO of voltage controlled oscillator GP in the receiver divided by the divisor 1/NT of the internal synchronization beat of software set
It is shifted forward in time with the time adjustment Ki of every 4ms relative to the second benchmark beat TW and is sent to the inside of transmitter ND
Synchronous beat TSa.More frequently considering in the transmitter from the synchronization beat TS that internal synchronization beat TSa is reconstructed than every 1 second
The time adjustment for second benchmark beat TW its pulse that the automatically delaying measurement carried out in advance in by remote transmission route TR generates
Make the work of transmitter synchronous in the case where Ki, and (there are 40 in each piece to by N=250 measuring data block BNP
As a result) data packet formed synchronously transmits progress timing from transmitter ND with synchronous beat TS, wherein entire data packet and the
Two benchmark beat TW are synchronously transmitted.
Conveying electricity in linear block BL of the pulse of internal synchronization beat TSa from receiver OD by being located at receiver
Separator SG2 and shortening supply-separation inverter PZ voltage circuit transistor key KL reach transmitter ND, and pass through electricity
Resistance device R1 is supplied to the remote transmission route TR of essential safety, due to connecing for the voltage and current in limitation remote transmission route TR
It receives essential safety required by the barrier diode BO of device and fixes.
In transmitter ND, system UF is formed by the block and beat of linear circuit BLN, synchronous beat TS is passed because long-range
Defeated route TR keys in internal synchronization beat TSa in receiver OD and makes the variable componenent from remote transmission route TR extensive
It answers, wherein TS=TSa+Ki.In transmitter ND, the pulse control transmitter of the synchronization beat TS obtained in forming system UF
The phaselocked loop of software is scheduled in microcontroller MKN, provides the feedback of trigonometric integral to hardware A/D converter AC, it is described
Feedback is counted using the output frequency FO of the hardware voltage controlled oscillator GPN from the output end of hardware low pass filter FDN to input terminal
When, wherein compare the phase of lock-out pulse TS with by by the pulse of the ready R generation of A/D converter AC divided by true by software
Fixed synchronization beat divisor 1/NP those of obtains phase, the signal from modulator PWN with the programmable phase in transmitter
The directly proportional length input of the phase error of the output of bit detector DFN.
Therefore, transmitter ND output obtain measuring data block BNP, the measuring data block by with this beat
Signal imitation component X, Y and Z are sampled in period between two subsequent pulses slopes of synchronous synchronization beat TS
NP=40 numeric results composition.Measurement result WP is transferred to microcontroller MKN from converter AC.In the measurement number of measurement result
According to block BNP form output data by means of in transmitter linear block BLN conveying electric separator SG4 and transmitter key KLN it is logical
The key entry for crossing long-range transmission line TR emits from transmitter ND, and is received in receiver OD by conveying electric separator SG1
(the wherein variable componenent control that diode passes through electric current in route), and it is serially introduced into receiver micro-control upon formation
Device MK processed.
The every n-th measuring data block BNP and the second benchmark section from GPS clock being made of NP=40 measurement result
TW is clapped to be synchronously received in receiver OD.In the number being made of the N=250 measurement result block BNP issued from receiver OD
According to be before the first measuring data block BNP in packet, being made of NP=40 result in receiver OD at time T1 from
The time determined by software that internal clocking RT is collected.The collected time considers delay and tune other later in route
It is whole, including subtracting the set time: the time (4ms) and correct Tac in Time constant that the time (4ms) of block formation, block transmit
The signal processing of form and the Time constant of filtering, collected time are accurately determined in the data packet formed by N number of piece
First piece of BNP in time for measuring of the signal first sample transmitted.
Key entry of the remote transmission route TR in the linear circuit block BLN of transmitter ND and receiver OD allows signal X, Y
Receiver OD is transmitted serially to from transmitter ND with one digitally recorded group numerical digit vibration data of Z.Sometimes, configuration and
Test data is sent to transmitter ND from receiver OD.It is sent in double width before replacing transmission direction from mining site ground A
Portion synchronizes beat TSa and the configuration data of the accumulative node SU from receiver OD microcontroller MK is then sent to underground
Mining site B to transmitter ND.
In the method according to the invention, it measures in the channel by remote transmission route TR because generating internal synchronization beat
The pulse of TSa and the follow-up time correction Ki postponed caused by changing after its length, and measured based on software to transmitter
After the time adjustment 2Ki of the time of first pulse of ND response, the period is made by the second benchmark beat TW that GPS clock provides
Property be supplied to internal clocking RT astronomical time NMEA it is synchronous.Measured length of delay is in the form of time adjustment Ki by soft
Part is introduced into the phase detectors DF of the phaselocked loop of receiver OD.Due to the phase of the microcontroller MK phaselocked loop of operation receiver OD
Bit detector DF, internal clocking RT have shifted forward the time adjustment value Ki measured in remote transmission route TR, and generate
Relative to the second benchmark beat TW from GPS clock shifted forward time adjustment Ki make transmitter ND work synchronization in
Portion synchronizes beat TSa.
The pulse of internal synchronization beat TSa shifted forward has and is lingeringly sent to transmitter ND, the delay compensation
The correction inputted, that is, beat synchronizes synchronous with the second benchmark beat TW of GPS clock at TSa inside every n-th.It is sending out
In emitter ND, using the synchronization beat TS of the phaselocked loop with phase detectors DF pulse-controlled generator GPN frequency simultaneously
And the further frequency of control A/D converter AC, so that every the NP processing result and beat TS are synchronously issued and often
A NNP=10,000 is synchronously issued with the second benchmark beat TW.
Time T1 in curve graph (Fig. 3) determines first sample in the data packet being made of many measuring data block BNP
Time of measuring.By at the time of the descending slope of synchronous beat TW from internal clocking RT acquisition time T1 to determine described when
Between T1 and put the beginning of the first piece of BNP transmitted in the packet.Additionally by time (the synchronous beat TS for subtracting 8ms
Two pulses) correct the time T1, one of time of 8ms is intended for completing at transmitter ND by NP=40
The measuring data block BNP that a sample is constituted, and during the second beat, measuring data block BNP is sent to from transmitter ND and connects
Device OD is received, and corrects the time T1 additionally by the constant process time and filtration time that subtract A/D converter AC.
In order to ensure transmitter ND is displaced signal delay time in remote transmission route TR with what is generated by GPS clock
The second benchmark beat TWa it is synchronous, receiver OD is by the way that with key KL, (key passes through the conveying electric separator with diode D2
SG2 is controlled from the output end of the microcontroller MK of receiver OD) shorten inverter PZ and relatively frequently sends internal synchronization beat
TSa.Internal synchronization beat TSa is in transmitter ND by forming the system UF of synchronous beat TS from remote transmission route TR
Restore in change component.It controls A/D converter AC to execute NP=40 measurement, wherein first by phase-locked loop operation
It is secondary to measure the synchronous progress of beat TS synchronous with second.
Due to remote transmission route TR by the transmitter key KLN that is controlled by conveying electric separator SG4 from transmitter micro-control
The data output end of device MKN processed is keyed in, therefore is in measuring data block BNP form by NP=in transmitter microcontroller MKN
The completed measurement data that 40 results are constituted is transferred to receiver OD from transmitter ND by remote transmission route TR.By receiving
Conveyed in device linear block BLO the diode D1 identification of electric separator SG1 with key KLN key in remote transmission route TR in variable
The result of component form is received by microcontroller MK.It received, be supplemented in time T1 by the microcontroller MK of receiver OD
Time that place is collected from internal clocking RT (by complementary adjustment), in the number for the data packet form being made of measuring data block BNP
Box KO and seismic system SS is further sent to by route L according to being sent to transmission via data/address bus MD and receiving.
From transmission channel configuration data of the seismic system SS via receiver OD to transmitter ND, hair
Send the longer pulse for shortening the internal synchronization beat TSa of remote transmission route TR with key KLO.Then, pass through microcontroller MK's
Accumulative node SU, sends out configuration data at the position for recognizing configuration data by the diode D3 for conveying electric separator SG3
It is sent to transmitter ND, and is fed in the input terminal of microcontroller MKN of transmitter ND.
The curve observed in Fig. 3 illustrates the temporal correlation of the following contents:
The second benchmark beat that TW signal-is transmitted from GPS receiver；
The shifted second internal reference beat that TWa signal-generates in receiver OD, relative to the second benchmark section
It claps TW and has shifted forward the time adjustment value Ki equal to the delay measured automatically in remote transmission route TR；
It is that TSa signal-generates in receiver OD and to postpone Ki by making to send out after remote transmission route TR
Emitter ND synchronization and the subsequent internal synchronization beat that synchronous beat TS is reverted in transmitter ND；TSa signal ratio TWa is more frequent
N=250 times；
TS signal-keeps transmitter ND synchronous and restores in transmitter ND from the beat TSa sent by receiver OD；
More frequent N=250 times of TW of TS signal ratio；
The ready pulse of ready pulse R- A/D converter AC is defined for the operation synchronization for making transmitter ND
At the time of beat TS is to three-component sampling is carried out from the analog signal of seismic sensor S1 or goephone probe G1, to be saved with this
Bat synchronously creates the measuring data block BNP being made of NP=40 measurement result；
Measurement data-via measurement bus MD transmission is in the data being made of N number of measuring data block BNP1 to BNPN
Packet form, the survey per second for being supplemented with the first sample by the specified time T1 (curve graph TW) of the value read from internal clocking RT
Measure the time, and subtract measurement data block BNP deadline and its transmission time (two periods equal to beat TS=
Other time adjustment 8ms) generated and the Time constant school as the sum of the processing time Tp of analog/digital AC and digital filtering
Time after positive Tac, the measurement data are transferred to transmission from receiver OD and receive box KO and then to seismic system SS.
Measuring data block BNP is sent by transmitter ND, and is synchronously completed with internal synchronization beat TSa and via bus MD from connecing
Device OD is received to send.
Example II (system)
It is a kind of for making earthquake and barisal guns measure the set system used in the method according to the invention of Network Synchronization
Seismic system SS on ground and two mining site barisal guns systems SA1 and SA2 by being located in mining site A are constituted.Seismic system SS
It is connected on GPS clock, and Digital Transmission is connected to by fiber optic Ethernet network L and is received on box KO, the Digital Transmission
Receiving box includes the digit receiver OD with input terminal WO being connected on the remote transmission route TR of particular nature safety.
The input terminal WO of four receiver OD is connected on the shake of the survey in the under ground portion B for being arranged in mining site station S.Each survey
Shake station S includes the seismic sensor S1 being connected on transmitter ND, and transmitter ND connects via individual remote transmission route TR again
It is connected on receiver OD.Each of two mining site barisal guns systems SA1 and SA2 are further equipped with the transmitter from receiver OD
The center power supply of the essential safety of ND, is connected on GPS clock, and is connected to Digital Transmission by fiber optic Ethernet network L
Receive on box KO, the Digital Transmission receive box include be connected on the remote transmission route TR of particular nature safety with defeated
Enter to hold the digit receiver OD of WO.
That be connected to each of input terminal WO is eight goephone station G, is arranged in the channel of longwell C.It is each
Goephone station G includes goephone the probe G1, transmitter ND being connected on transmitter ND and via individual remote transmission route
TR is connected on receiver OD.Remote transmission route TR in transmitter ND and is received for three-component digital seismics and barisal guns signal
Bi-directional digital transmission between device OD, and for providing essential safety from the above ground portion A of mining site to digit emitter ND
Power supply.Each receiver OD may be mounted on the A of mining site ground or under ground portion B as the hinge for being used for measurement data
In.The system according to the present invention has the semiconductor key KL for shortening remote transmission route TR in the linear block BL of receiver OD,
Its output end b that microcontroller MK is connected to by the conveying electric separator SG2 input terminal of linear block BL.
The formation block UF of synchronous circulating TS in transmitter ND is connected on the linear block BLN of transmitter via capacitor C.
The output end for forming block UF is connected on one of input terminal of phase detectors DFN of microcontroller MKN of transmitter.Hair
The linear block BLN of emitter includes conveying the electric separator SG3 and SG4 of signal.Conveying electricity point in the linear block BLN of transmitter
Control diode from device SG3 output end is the portion of Gray's hereby (Graetz) rectification circuit together with diode D5, D6 and D7
Point, transmitter linear block BLN is connected on remote transmission route TR by the rectification circuit.
On the data input pin d for the microcontroller MKN that the output end of conveying electric separator SG3 is connected to transmitter.Transmitting
The data output end c of the microcontroller MKN of device is connected to the control of the conveying electric separator SG4 input terminal of transmitter linear block BLN
On diode D4 processed, the semiconductor key KLN of remote transmission route TR is keyed in the transmitter linear block output end control.Receiver
Linear block BL transoptor output electric separator SG1 output end be connected on the input terminal of microcontroller MK.This is defeated
The control diode D1 of power transmission separator is by supply-separation inverter PZ by including resistor R1 and diode D8 and D9
Current limiter is connected to remote transmission route TR.
Receiver OD has a microcontroller MK, the microcontroller control the receiver operation and or from GPS
The internal clocking RT of clock load, and continuously synchronized by the second synchronous beat TW.Receiver OD contain partly with
Software and the phaselocked loop partly implemented with hardware.In Fig. 2 with thinner line show software-based element (DF, 1/NS with
And SU) instruction they and hardware to be distinguished.Phaselocked loop includes the software realization with the time adjustment Ki determined by software
Phase detectors DF, the hardware pulse generator PW with the pulse width determined by software and be connected to voltage controlled oscillation
Hardware low pass filter FD on device GP.In its rate-adaptive pacemaker FO is controlled after divided by internal time divisor 1/NS by programming
Portion clock RT.The output with the second inside beat TSa of the latter in phase detectors DF with the second base from GPS clock
Quasi- beat TW is compared in phase.
Equal to delay previously measured in remote transmission route TR time adjustment value Ki make benchmark beat TWa and
Generated internal synchronization beat TSa shifts forward correction time Ki relative to the second benchmark beat TW.Equally, by frequency FO
Pass through remote transmission route TR control transmitter divided by generating in microcontroller MK after the divisor 1/NT of internal synchronization beat
The internal synchronization beat TSa of ND.This in the linear block BL of receiver OD by using conveying electric separator SG2 and semiconductor
Key KL shortens the route having from supply-separation inverter PZ supply voltage to complete.Then preferably, internal synchronization
The pulse of beat TSa is sent to transmitter ND protection potential barrier BO with every 4ms, provides the essential safety of remote transmission route TR.Such as
It is the same with receiver OD, transmitter ND hardware-implemented lock comprising microcontroller MKN and partly with software and partly
Xiang Huan.The ring includes the phase detectors DFN of the software realization of transmitter, the hardware pulse hair with programmable pulse width
The hardware low pass filter FDN of raw device PWN, the transmitter being connected on voltage-controlled transmitter generator GPN, output frequency
Work timing of the rate FON to A/D converter AC, and the ready R pulse of A/D converter AC is in the software divided by synchronous beat
It is compared in the phase detectors DFN of transmitter with synchronous beat TS after the divisor 1/NP of realization.Synchronous beat TS=
TSa+K。
Synchronous beat TS is in transmitter ND from extensive in the variable componenent formed in system UF on remote transmission route TR
It is multiple.Number N P specifies the number of the ready R state of A/D converter AC, is the survey carried out during a synchronous beat TS
The number of amount.By keying in remote transmission route TR, the data packet of measuring data block BNP is from the defeated of transmitter microcontroller MKN
Outlet is sent by the conveying electric separator SG4 and semiconductor key KLN of transmitter linear block BLN.In remote transmission route TR
Modulated electric current by conveying electric separator SG1 diode receive in receiver OD, and it is described receive be in micro-control
The input end of device MK processed is completed after being formed, supplementing sampling time and adjustment through software, and the sampling time is when coming from internal
The sampling time of first sample in the data packet of the block of the time T1 acquisition of the descending slope in the second benchmark beat TW of clock RT,
Adjustment is transmitted by measuring data block BNP, its signal of completion measurement result, processing and digital filtering time generate.
Claims (7)
1. a kind of synchronous method of earthquake and barisal guns measurement network, which is characterized in that by being connected to one by transfer bus
In each measurement channel of digit emitter and the digit receiver composition risen, using GPS clock for synchronizing, and each
Periodically start to travel to transmitter (ND) from receiver (OD) to signal and from the transmitter (ND) in transmission channel
Be propagated back to the measurement of the time adjustment 2Ki of the receiver (OD), and then, the receiver (OD) include it is internal when
In the phaselocked loop of clock (RT), generated in a continuous mode as the shifted second benchmark beat (TWa) corrected, described shifted the
Two benchmark beats advanced time adjustment Ki in phase relative to the second benchmark beat (TW) from GPS clock, wherein in
Portion's clock (RT) has shifted forward the time adjustment Ki simultaneously, and also in continuous mode, relative to second benchmark
For beat (TW) with N times of more multi-frequency, specially 250 times of more multi-frequency generates the advanced correction time Ki in phase
Internal synchronization beat (TSa), key in essential safety to transmission channel (TR) provide power supply-separation inverter (PZ)
Output, and the work of the phaselocked loop of the transmitter (ND) is controlled by this route, comprising turning by feedback coupling modulus
Parallel operation (AC), so that the ready of the analog-digital converter (AC) synchronous is saved between the subsequent pulses of synchronous beat (TS) with described
It claps (TS) to compare with NP times of more multi-frequency, specially 40 times of more multi-frequency occurs, and for the NP synchronous with this beat
Times ready state (R), specially 40 times of ready state (R) occur it is primary and for the second benchmark beat (TW)
Once, specially every 1,000 times of measurements occur once, and therefore, described occurs in NNP times of synchronous measurement
In each period of synchronous beat (TS), obtain in the receiver (OD) from seismic sensor (S1) or goephone probe
(G1) measuring data block (BNP) that analogue component is sampled, and wherein have by subtracting the constant delay of time adjustment
Body for the constant delay of 8ms come further adjust to by the time T1 in the second benchmark beat (TW) descending slope from institute
First sample in the data packet of N number of measuring data block (BNP) composition of the measurement result of internal clocking (RT) acquisition is stated to be adopted
The real time of sample, the signal delay time in the included transmission channel (TR), the delay of the time adjustment by
Packet in the time and measuring data block (BNP) of the measuring data block (BNP) of measurement result is completed in the transmitter (ND)
The measurement result contained is generated in the form of numeral sample from the time that the transmitter (ND) is transferred to the receiver (OD)；Wherein
The time that the measuring data block (BNP) of measurement result is completed in the transmitter (ND) is equal to a week of synchronous beat (TS)
Phase；The measurement result for including in measuring data block (BNP) is transferred to described connect from the transmitter (ND) in the form of numeral sample
The time for receiving device (OD) is also equal to a cycle for the synchronous beat (TS) for keeping the transmitter (ND) synchronous.
2. the method according to claim 1, wherein passing through microcontroller (MK) in the receiver (OD)
Using the phaselocked loop is realized, wherein phase detectors (DF) are programmed with the time school of the second benchmark beat (TW)
The predetermined value of positive Ki, and the phase detectors (DF) control pulse width modulator (PW), the pulse width modulator pass through low pass
Filter (FD) controls the input of voltage controlled oscillator (GP), and the output signal of this oscillator is in the divisor 1/NS divided by setting
When the internal clocking (RT) timing to the microcontroller (MK), thus shifted second benchmark beat (TWa) phase
The delay time being equal in the transmission channel (TR) is shifted forward in time for the second benchmark beat (TW)
The time adjustment Ki, and it is described by obtaining the frequency (FO) of the voltage controlled oscillator (GP) divided by the divisor 1/NS
Internal synchronization beat (TSa), the every 4ms of internal synchronization beat are sent to the transmitter (ND), this is more shifted than described
The more multi-frequency of second N times of benchmark beat (TWa), specially 250 times of more multi-frequency, according to shifted second benchmark beat
(TWa) pulsion phase is for the second benchmark beat (TW) by the GPS clock offer in each transmission channel (TR)
Different time corrects Ki, and the internal synchronization beat synchronizes the operation of the transmitter (ND), and wherein this correction is by previously giving
Determine the automatically delaying carried out in transmission channel (TR) measurement to generate.
3. method according to claim 1 or 2, which is characterized in that in the transmitter (ND), from the receiver
(OD) pulse control of the synchronous beat (TS) that is sending and restoring in the transmission channel (TR) is in the hair
The phaselocked loop realized in the microcontroller (MKN) of emitter couples the voltage controlled oscillator using the transmitter by feedback
(GPN) output frequency (FON) carrys out the analog-digital converter (AC) of timing, and the input of this oscillator is via the transmitter
Low-pass filter (FDN) is fed, wherein the phase of length and the output of the programmable phase detector (DFN) in transmitter
The directly proportional signal of error with the impulse phase of the synchronous beat (TS), by ready state (R) arteries and veins of the analog-digital converter
Punching is compared divided by the pulse that the result of synchronous beat divisor 1/NP obtains, and it is in the described defeated of the transmitter (ND)
The measuring data block in sampled result sampled to signal imitation component is generated synchronously with synchronous beat (TS) at outlet
(BNP) the serial numeric results of the transient state of form, and it is same with the second benchmark beat (TW) in the receiver of cooperation (OD)
Step ground generates the numeric results in the data packet form being made of the measuring data block (BNP) of measurement result, and the result
Each of transmitted between successive synchronous beat (TS).
4. the method according to claim 1, wherein being adopted to improve the signal in the receiver (OD) channel
The accuracy of the synchronization of sample is equal to the Time constant of the sum of processing time (Tp) and digital filtering time (Tf) by addition subtracting
It corrects (Tac), to numerically adjust the measuring data block acquired at time T1 from the internal clocking (RT)
(BNP) sampling time of first sample described in the data packet.
5. a kind of synchronous system for earthquake and barisal guns measurement network comprising: receiver, the receiver have essence
Supply-separation inverter of the protection potential barrier of safety；And microcontroller, the microcontroller, which has, to be connected on GPS clock
And it is connected to the internal clocking on transmitter via transmission channel, the microcontroller includes digital microcontroller, analog-to-digital conversion
The safety barrier of device and essential safety, which is characterized in that the system contains contracting in the linear block (BL) of receiver (OD)
The semiconductor key (KL) of short transmission channel (TR) is connected by the input terminal of the conveying electric separator SG2 of the linear block (BL)
It is connected to the output end b of microcontroller (MK), and contains in transmitter (ND) and is connected to the linear of transmitter via capacitor (C)
The formation block (UF) of synchronization beat (TS) on block (BLN), wherein the output end for forming block (UF) is connected to the transmitting
On one of input terminal of phase detectors (DFN) of microcontroller (MKN) of device, and wherein transmitter linear block
(BLN) conveying electric separator SG3 and SG4 containing signal, wherein the conveying in the transmitter linear block (BLN) is electrically separated
The control diode D3 of device SG3 output end is connected to the electricity of Gray's hereby (Graetz) rectifier together with diode D5, D6 and D7
The transmitter linear block (BLN) is coupled on the transmission channel (TR) by Lu Zhong, the circuit, and this conveying is electrically separated
The output end of device SG3 is connected on the data input pin d of the transmitter microcontroller (MKN), and the transmitter microcontroller
The data output end c of device (MKN) is connected to the conveying electric separator SG4 input terminal of the transmitter linear block (BLN)
It controls on diode D4, the transmitter of the transmission channel (TR) is keyed in the output end control of the transmitter linear block
Semiconductor key (KLN), and the output end connection of the conveying electric separator SG1 of the linear block (BL) of the receiver (OD)
Onto the input terminal a of the microcontroller (MK), and the control diode D1 of this conveying electric separator (SG1) is by supply-separation
Inverter (PZ) is connected to the transmission channel (TR) by the current limiter being made of resistor (R1) and diode D8 and D9
On.
6. system according to claim 5, which is characterized in that the receiver (OD) is equipped with phaselocked loop, the locking phase
Ring contains phase detectors (DF), the impulse generator with scheduled pulse width with preset time adjustment Ki
(PW), the low-pass filter (FD) being connected on voltage controlled oscillator (GP), output end are connected to internal time divider 1/NS
On, and wherein the voltage controlled oscillator (GP) passes through internal synchronization beat divider (1/NT), accumulative node (SU) and institute
The linear block (BL) for stating receiver (OD) is connected on the transmission channel (TR).
7. system according to claim 5 or 6, which is characterized in that the transmitter (ND) is equipped with phaselocked loop, the lock
The hair that phase ring contains impulse generator (PWN) with predetermined width, is connected on voltage-controlled transmitter oscillator (GPN)
The output end of emitter low-pass filter (FDN), the transmitter oscillator is connected to the control signal of analog-digital converter (AC)
On, and wherein ready state (R) output end of the analog-digital converter (AC) passes through the determining pulse at synchronous beat (TS)
Between the synchronization beat divider 1/NP of measurement number that executes be connected to the phase detectors (DFN) of the transmitter (ND)
On one of input terminal, another output end is connected to the transmitter (ND) via formation system (UF) and capacitor (C)
Linear block (BLN) on.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL410177A PL225485B1 (en) | 2014-11-19 | 2014-11-19 | Method and system for synchronization of seismic and seismoacoustic measuring networks, preferably the intrinsically safe mining networks |
| PLP.410177 | 2014-11-19 | ||
| PCT/PL2014/000138 WO2015038018A2 (en) | 2014-11-19 | 2014-12-15 | Method and system for synchronization of seismic and seismo-acoustic measurement networks, in particular intrinsically safe mine networks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105829917A CN105829917A (en) | 2016-08-03 |
| CN105829917B true CN105829917B (en) | 2019-05-07 |
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| CN201480002458.9A Expired - Fee Related CN105829917B (en) | 2014-11-19 | 2014-12-15 | Synchronous method and system for earthquake and barisal guns measurement network (the especially mining site network of essential safety) |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN105829917B (en) |
| PL (1) | PL225485B1 (en) |
| RU (1) | RU2587504C1 (en) |
| UA (1) | UA117662C2 (en) |
| WO (1) | WO2015038018A2 (en) |
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| CN107923991B (en) * | 2015-03-26 | 2021-03-30 | 英国石油勘探运作有限公司 | Seismic surveying method |
| RU2614659C2 (en) * | 2015-08-04 | 2017-03-28 | Федеральное государственное бюджетное учреждение науки Федеральный исследовательский центр "Единая геофизическая служба Российской академии наук" | Registration system of infrasound signals |
| US9823368B2 (en) * | 2015-12-15 | 2017-11-21 | Sercel | Average clock adjustment for data acquisition system and method |
| CN108181643B (en) * | 2017-11-27 | 2019-11-08 | 中国石油天然气集团公司 | A kind of seismic prospecting data collecting processing method and processing device |
| CN108650113A (en) * | 2018-03-30 | 2018-10-12 | 安徽马钢自动化信息技术有限公司 | A kind of underground mine network system |
| CN112711075B (en) * | 2019-10-25 | 2024-03-26 | 中国石油天然气集团有限公司 | Clock calibration system of marine seismic node |
| CN111929641B (en) * | 2020-06-19 | 2022-08-09 | 天津大学 | Rapid indoor fingerprint positioning method based on width learning |
| CN114839649B (en) * | 2022-04-11 | 2024-06-04 | 南京航空航天大学 | Distributed time service multi-point positioning receiver |
| CN114978441A (en) * | 2022-06-14 | 2022-08-30 | 四川禹明光电技术有限公司 | Monitoring and correcting system for optical fiber sensing synchronous transmission |
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Also Published As
| Publication number | Publication date |
|---|---|
| PL225485B1 (en) | 2017-04-28 |
| PL410177A1 (en) | 2016-05-23 |
| UA117662C2 (en) | 2018-09-10 |
| CN105829917A (en) | 2016-08-03 |
| WO2015038018A2 (en) | 2015-03-19 |
| RU2587504C1 (en) | 2016-06-20 |
| WO2015038018A3 (en) | 2015-09-17 |
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