CN108825202A - A kind of downhole dynamics parameter signal processing circuit and processing method - Google Patents
A kind of downhole dynamics parameter signal processing circuit and processing method Download PDFInfo
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- CN108825202A CN108825202A CN201810811776.XA CN201810811776A CN108825202A CN 108825202 A CN108825202 A CN 108825202A CN 201810811776 A CN201810811776 A CN 201810811776A CN 108825202 A CN108825202 A CN 108825202A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/04—Automatic control of the tool feed in response to the torque of the drive ; Measuring drilling torque
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B45/00—Measuring the drilling time or rate of penetration
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21137—Analog to digital conversion, ADC, DAC
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Design And Manufacture Of Integrated Circuits (AREA)
Abstract
A kind of downhole dynamics parameter signal processing circuit and method.Circuit includes well dynamic parameter measurement unit, multi-parameter signals acquisition unit, signal conditioning unit, analog to digital signal conversion unit, bus buffer unit, central processing unit and down-hole power integrated management unit.Effect of the present invention：Bit pressure is carried out by underground measuring multiple parameters unit, torque, revolving speed, vibration, the measurement of environmental pressure and temperature, multi-channel multi-parameter synchronous acquisition is realized by the setting of multi-parameter signals acquisition unit, pretreatment early period of signal is realized by signal conditioning unit, measuring signal is carried out the quantification treatment of data by analog to digital signal conversion unit, bus buffer unit realizes the temporary and buffering between front-end collection data and rear end central processing unit, acquisition for multichannel multi-parameter signals, under the premise of guaranteeing measurement accuracy, the adaptability of stability and complex environment for promotion circuit is of great significance.
Description
Technical field
The invention belongs to oil and gas well drilling technical fields, more particularly to a kind of downhole dynamics parameter signal
Processing circuit and processing method.
Background technique
In field of oil drilling, by the sensor and signal processing circuit that are installed on bottom drill tool to well dynamic
It learns parameter to measure, store and transmit, for each parameter during understanding underground working, grasping bottom drill tool underground work
Performance change situation, the fault diagnosis for carrying out bottom drill tool and performance optimization have great importance.However, bottom drill tool underground
Kinetic parameter measurement has the characteristics that measurement type is more, data volume is big, environment is complicated, required precision is high, high temperature, vibration in underground
To carry out high speed, the acquisition of high-precision data under the adverse circumstances such as dynamic, impact, it is conventional to acquire and handle for ground signal
Circuit structure and method are difficult to meet the requirements.
A kind of signal processing circuit structure for bottom drill tool well dynamic parameter measurement is studied, is realized single to measurement
The functions such as conditioning, sampling, conversion, the temporary and buffering of first output signal meet it and want to data precision and measurement stability
It asks, provides accurate, reliable data foundation for the analysis of subsequent data, explanation, instruct lower step drilling, raising drilling efficiency, subtract
Few drilling failure is of great significance and value.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of downhole dynamics parameter signal processing electricity
Road and processing method, to realize to the conditionings of the kinetic parameters such as bit pressure, torque, revolving speed, vibration, annular pressure, temperature, adopt
Sample, analog-to-digital conversion and buffered.
In order to achieve the above object, downhole dynamics parameter signal processing circuit provided by the invention includes：
Well dynamic parameter measurement unit, multi-parameter signals acquisition unit, signal conditioning unit, analog to digital signal
Converting unit, bus buffer unit, central processing unit and down-hole power integrated management unit；Wherein well dynamic parameter is surveyed
It measures unit and connects multi-parameter signals acquisition unit, multi-parameter signals acquisition unit connection signal conditioning unit, signal conditioning unit
It is slow by bus to connect analog to digital signal conversion unit, multi-parameter signals acquisition unit and analog to digital signal conversion unit
Unit connection central processing unit is rushed, down-hole power integrated management unit connects well dynamic parameter measurement unit, multi-parameter
Signal acquisition unit, signal conditioning unit, analog to digital signal conversion unit, bus buffer unit and central processing unit.
The well dynamic parameter measurement unit includes weight-on-bit measuring device, torque-measuring apparatus, tachometric survey dress
It sets, three shaft vibration measuring devices, environmental pressure measuring device and ambient temperature measuring device；Wherein, weight-on-bit measuring device, torque
Measuring device realizes that remaining measuring device is by corresponding by pasting the foil gauge of specific direction and quantity on tubing string outer wall
Sensor is completed.
The multi-parameter signals acquisition unit includes the first integrated circuit U1 and its peripheral circuit, the second integrated circuit U2
And its peripheral circuit, the first integrated circuit U1, the second integrated circuit U2 peripheral circuit include first resistor R1, first capacitor
C1, the second capacitor C2 and third capacitor C3；Wherein, the first integrated circuit U1 is variable connector, selects 74HC4051 collection
At circuit chip, the second integrated circuit U2 is operational amplifier, selects LM2902D low power operational amplifier, described
The first integrated circuit U1 A0~A7 pin be multiple signals input pin, with the well dynamic parameter measurement unit
Each sensor output signal S in 100iConnection, the GND pin ground connection of the first integrated circuit U1, described first is integrated
+ 5V the DC power supply that the VCC pin connection of the circuit U 1 down-hole power integrated management unit provides, the one end first capacitor C1
Connect the VCC pin of the first integrated circuit U1, other end ground connection, the VEE pin connection of the first integrated circuit U1
- 5V the DC power supply that the down-hole power integrated management unit provides, the integrated electricity of second one end capacitor C2 connection described first
The pin E of the VEE pin of road U1, other end ground connection, the first integrated circuit U1 is enable end, and low level is effective, and ground connection sets
Set, S0~S2 pin of the first integrated circuit U1 is gating control terminal, by the bus buffer unit with it is described
Central processing unit connection, for realizing the first integrated circuit U1 A0~A7 pin gating control；Described first
The A pin of integrated circuit U1 is output pin, connects one end of first resistor R1, the other end connection described the of first resistor R1
The non-inverting input terminal of two integrated circuit U2, one end of third capacitor C3 connect the non-inverting input terminal of the second integrated circuit U2,
Other end ground connection, the inverting input terminal of the second integrated circuit U2 connects the output end of the second integrated circuit U2, described
The output end of second integrated circuit U2 is the output end of the multi-parameter signals acquisition unit, connects the signal conditioning unit.
The signal conditioning unit includes third integrated circuit U3 and its peripheral components, the 4th integrated circuit U4 and its outer
Enclose circuit, third integrated circuit U3, the 4th integrated circuit U4 peripheral circuit include second resistance R2,3rd resistor R3, the 4th
Resistance R4, the 5th resistance R5, the 6th resistance R6 and the 4th capacitor C4；Wherein, the third integrated circuit U3 and the 4th is integrated
Circuit U 4 is operational amplifier, selection LM2902D low power operational amplifier, and one end of second resistance R2 is signal input
End connects the output end of the multi-parameter signals acquisition unit, and the third that the other end connection of second resistance R2 is described is integrated
The non-inverting input terminal of circuit U 3, the non-inverting input terminal of one end connection of 3rd resistor R3 third integrated circuit U3 are another
End ground connection, the inverting input terminal of the 4th one end resistance R4 connection third integrated circuit U3, other end ground connection, the 5th resistance
The inverting input terminal of the one end R5 connection third integrated circuit U3, the other end connection third integrated circuit U3 output
End, the 6th one end resistance R6 connection third integrated circuit U3 output end, the other end connect the 4th integrated circuit U4
Non-inverting input terminal, the 4th capacitor C4 is filter capacitor, and anode connects the non-inverting input terminal of the 4th integrated circuit U4, cathode
Ground connection, the inverting input terminal of the 4th integrated circuit U4 connect the output end of the 4th integrated circuit U4, the 4th collection
Output end at circuit U 4 is the output end of signal conditioning unit.
The analog to digital signal conversion unit includes the 5th integrated circuit U5 and its peripheral circuit, the 6th integrated electricity
Road U6 and its peripheral circuit, the 5th integrated circuit U5, the 6th integrated circuit U6 peripheral circuit include the 7th resistance R7, the 8th electricity
Hinder R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, the 5th capacitor C5, the 6th capacitor
C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9 and the first crystal oscillator Y1；Wherein, the 5th integrated circuit U5 is simulation-number
Word conversion chip selects the AD7710 chip of AD company, and the 6th integrated circuit U6 is or door to select HD74HCT1G32 chip, institute
The MCLK IN pin for stating the 5th integrated circuit U5 is external crystal oscillator input pin, connects the first pin of the first crystal oscillator Y1, described
The MCLK OUT pin of 5th integrated circuit U5 is external crystal-controlled oscillation output pin, connects the second pin of the first crystal oscillator Y1, described
5th integrated circuit U5'sPin is synchronous logic input pin, and low level is effective, and it is comprehensive to connect the down-hole power
+ 5V the DC power supply that administrative unit provides is closed, the MODE pin of the 5th integrated circuit U5 is clock selecting pin, is set herein
Be set to external clock mode, MODE pin ground connection, AIN1 (+) pin of the 5th integrated circuit U5, AIN1 (-) pin,
AIN2 (+) pin and AIN2 (-) pin are the input pin of the analog to digital signal conversion unit, and the described 5th is integrated
AIN1 (+) pin of circuit U 5 connects the output end of the 4th integrated circuit U4 in the signal conditioning unit, and the described 5th is integrated
- 5V the DC power supply that AIN1 (-) the pin connection of the circuit U 5 down-hole power integrated management unit provides, the 5th collection
It is arranged at AIN2 (+) pin and AIN2 (-) pin floating of circuit U 5, the VSS pin of the 5th integrated circuit U5 is negative electricity
Source pin connects the -5V DC power supply that the down-hole power integrated management unit provides, and the 5th capacitor C5 is electrolytic capacitor,
The plus earth of 5th capacitor the C5, -5V that the cathode connection of the 5th capacitor C5 down-hole power integrated management unit provides
The DC power supply, -5V DC power supply that one end connection of the 6th capacitor C6 down-hole power integrated management unit provides are another
End ground connection, the I of the 5th integrated circuit U5OUTPin compensates electric current output pin, hanging to be arranged, the 5th integrated circuit
The AVDD pin of U5 is positive power input pin, connects+5V the DC power supply that the down-hole power integrated management unit provides,
The DVDD pin of the 5th integrated circuit U5 is digital power input pin, connects the down-hole power integrated management unit
+ 5V the DC power supply provided, the DGND pin of the 5th integrated circuit U5 are that digitally pin, ground connection, the 7th capacitor C7 are
Electrolytic capacitor ,+5V the DC power supply that the anode connection of the 7th capacitor C7 down-hole power integrated management unit provides, the 7th
The cathode of capacitor C7 is grounded ,+5V the direct current that one end connection of the 8th capacitor C8 down-hole power integrated management unit provides
Power supply, other end ground connection ,+5V direct current that one end connection of the 9th capacitor C9 down-hole power integrated management unit provides
Source, other end ground connection, the V of the 5th integrated circuit U5BIASPin is bias voltage input pin, ground connection setting, described the
The AGND pin of five integrated circuit U5 is ground pin, and ground connection, the REF OUT pin of the 5th integrated circuit U5 is internal reference
Voltage output pin connects REF (IN+) reference voltage positive input pin of the 5th integrated circuit U5, and the described 5th is integrated
REF (IN-) reference voltage negative input pin of circuit U 5 is grounded, and the SDATA pin of the 5th integrated circuit U5 is serial number
According to pin, the bus buffer unit is connected, the 5th integrated circuit U5'sPin is that synchronization frame receives pin, low
Level is effective, connects one end of the 7th resistance R7, the other end connection of the 7th resistance R7 bus buffer unit, the 8th electricity
Hinder+5V the DC power supply that one end connection down-hole power integrated management unit of R8 provides, described total of other end connection
Line buffer cell, the 5th integrated circuit U5'sPin is that synchronization frame sends pin, and low level is effective, the 9th electricity of connection
Hinder one end of R9, the other end connection of the 9th resistance R9 bus buffer unit, described in one end connection of the tenth resistance R10
+ 5V the DC power supply that provides of down-hole power integrated management unit, the other end connection bus buffer unit, the described 5th
The A0 pin of integrated circuit U5 is address input pin, connects the 5th integrated circuit U5'sPin, the 5th collection
At circuit U 5Pin is logic output pin, and low level is effective, the 5th integrated circuit U5'sPin
One end of eleventh resistor R11 is connected, the down-hole power integrated management unit that the other end connection of eleventh resistor R11 is described mentions
+ 5V the DC power supply supplied, the SCLK pin of the 5th integrated circuit U5 are clock pins, connect the bus buffer list
Member, one end of twelfth resistor R12 connect the 4th integrated circuit U4'sPin, other end connection the 6th collection
At the A input pin of circuit U 6, the B input pin of the 6th integrated circuit U6 is grounded, and the Y output pin of the 6th integrated circuit U6 connects
Connect the bus buffer unit.
The bus buffer unit includes the 7th integrated circuit U7 and its peripheral circuit, the periphery of the 7th integrated circuit U7
Circuit includes thirteenth resistor R13 and the tenth capacitor C10；Wherein, the 7th integrated circuit U7 selects 74HCT244 bus
Buffer chip, the VCC pin of the 7th integrated circuit U7 are power pins, connect the down-hole power integrated management unit
+ 5V the DC power supply provided the ,+5V that one end connection of the tenth capacitor C10 down-hole power integrated management unit provides are straight
Galvanic electricity source, other end ground connection, the GND pin ground connection of the 7th integrated circuit U7, the A1 of the 7th integrated circuit U7~
A4 pin, B1~B4 pin are data-out pin, and YA1~YA4 pin, the YB1~YB4 of the 7th integrated circuit U7 draws
Foot is data output pins, and ENABLE A pin, the ENABLE B pin of the 7th integrated circuit U7, which is that output is enabled, to be drawn
Foot controls YA1~YA4 pin, the output of YB1~YB4 pin of the 7th integrated circuit U7 respectively, and the described the 7th is integrated
A1~A4 pin of circuit U 7, B1~B4 pin, ENABLE A pin, the connection of ENABLE B pin the central processing list
The YA1 pin of member, the 7th integrated circuit U7 connects the 5th integrated circuit U5 in the analog to digital signal conversion unit
SCLK pin, the 7th electricity in the YA2 pin connection of the 7th integrated circuit U7 analog to digital signal conversion unit
The common end of R7 and the 8th resistance R8 are hindered, the analog to digital signal that the YA3 pin connection of the 7th integrated circuit U7 is described turns
The common end of the 9th resistance R9 and the tenth resistance R10 in unit is changed, the YA4 pin of the 7th integrated circuit U7 connects described
The SDATA pin of 5th integrated circuit U5 in analog to digital signal conversion unit, the one end thirteenth resistor R13 connection described the
The YA4 pin of seven integrated circuit U7, other end ground connection, the YB1 pin connection of the 7th integrated circuit U7 simulation-number
The Y output pin of 6th integrated circuit U6 in word signal conversion unit, the 7th integrated circuit U7 YB2 pin connection described in
Multi-parameter signals acquisition unit in the first integrated circuit U1 S0 pin, the 7th integrated circuit U7 YB3 pin connection
The S1 pin of first integrated circuit U1 in the multi-parameter signals acquisition unit, the YB4 pin of the 7th integrated circuit U7
The S2 pin of first integrated circuit U1 in the connection multi-parameter signals acquisition unit.
Downhole dynamics parameter signal processing method provided by the invention includes the following steps carried out in order：
a100：It starts to work：Bottom drill tool connection finishes, and downhole dynamics parameter signal processing circuit is installed on
On bottom drill tool, down-hole power total management system starts straight needed for providing for downhole dynamics parameter signal processing circuit
Flow regulated power supply；
a101：Sample frequency is set：Central processing unit reads the sampling frequency for each measurement parameter being previously written inside it
The sample frequency of each parameter of multi-parameter signals acquisition unit is arranged by bus buffer unit for rate；
a102：Parameter measurement：Downhole dynamics parameter signal processing circuit enters well with bottom drill tool, and real-time measurement is bored
Kinetic parameter information including pressure, torque, revolving speed, vibration, environmental pressure, environment temperature；
a103：Signal acquisition：Central processing unit is adopted according to the sample frequency gating multi-parameter signals of each parameter of setting
Collect unit corresponding ports, kinetic parameter information is acquired by well dynamic parameter measurement unit；
a104：Signal condition：The parameter information that signal conditioning unit obtains well dynamic parameter measurement unit measurement
It amplifies, filter, being isolated in interior pretreatment operation；
a105：Analog-to-digital conversion：The signal that analog to digital signal conversion unit exports signal conditioning unit is simulated
The conversion of amount-digital quantity；
a106：Data processing：Central processing unit is defeated by bus buffer unit reading analog to digital signal conversion unit
Digital signal out；
a107：Tool goes out well：After construction, downhole dynamics parameter signal processing circuit with bottom drill tool together
Well out；
a108：Data analysis：The data for extracting the acquisition of downhole dynamics parameter signal processing circuit, divide it
Analysis is explained and is evaluated；
a109：Power cut-off：Disconnect down-hole power total management system and downhole dynamics parameter signal processing electricity
The connection of road other parts terminates measurement work.
Downhole dynamics parameter signal processing circuit provided by the invention and method have the following effects that：
The measurement that bit pressure, torque, revolving speed, vibration, environmental pressure and temperature are carried out by underground measuring multiple parameters unit, passes through
The setting of multi-parameter signals acquisition unit realizes multi-channel multi-parameter synchronous acquisition, before realizing signal by signal conditioning unit
Phase pretreatment, measuring signal are carried out the quantification treatment of data by analog to digital signal conversion unit, and bus buffer unit realizes
Temporary and buffering, the acquisition for multichannel multi-parameter signals between front-end collection data and rear end central processing unit are guaranteeing
Under the premise of measurement accuracy, the adaptability of stability and complex environment for promotion circuit is of great significance.
Detailed description of the invention
The attached drawing for constituting present invention a part is used to provide further understanding of the present invention, schematic implementation of the invention
Example and its explanation are used to explain the present invention, and are not constituted improper limitations of the present invention.
Fig. 1 is downhole dynamics parameter signal processing circuit structural block diagram provided in an embodiment of the present invention.
Fig. 2 is multi-parameter signals acquisition unit circuit structure diagram provided in an embodiment of the present invention.
Fig. 3 is signal conditioning unit circuit structure diagram provided in an embodiment of the present invention.
Fig. 4 is analog to digital signal conversion unit circuit structure diagram provided in an embodiment of the present invention.
Fig. 5 is bus buffer element circuit structure chart provided in an embodiment of the present invention.
Fig. 6 is downhole dynamics parameter signal processing method flow chart provided in an embodiment of the present invention.
Specific embodiment
In the following with reference to the drawings and specific embodiments to downhole dynamics parameter signal processing circuit provided by the invention
And processing method is described in detail.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
As shown in Figure 1, downhole dynamics parameter signal processing circuit provided by the invention includes：
Well dynamic parameter measurement unit 100, multi-parameter signals acquisition unit 200, signal conditioning unit 300, simulation-
Digital signal converting unit 400, bus buffer unit 500, central processing unit 600 and down-hole power integrated management unit 700；
Wherein well dynamic parameter measurement unit 100 connects multi-parameter signals acquisition unit 200, multi-parameter signals acquisition unit 200
Connection signal conditioning unit 300, signal conditioning unit 300 connect analog to digital signal conversion unit 400, and multi-parameter signals are adopted
Collect unit 200 and analog to digital signal conversion unit 400 and central processing unit 600, well are connected by bus buffer unit 500
Lower power supply integrated management unit 700 connects well dynamic parameter measurement unit 100, multi-parameter signals acquisition unit 200, signal
Conditioning unit 300, analog to digital signal conversion unit 400, bus buffer unit 500 and central processing unit 600.
Wherein, the well dynamic parameter measurement unit 100 be used for bit pressure, torque, revolving speed, vibration, environmental pressure,
The parameters such as environment temperature carry out real-time measurement, and the multi-parameter signals acquisition unit 200 is for realizing to multichannel measurement data point
Shi Xuantong, the signal conditioning unit 300 are used to amplify signal, filter, be isolated etc. pretreatment operations, the simulation-
The signal that digital signal converting unit 400 is used to export the signal conditioning unit 300 carries out quantification treatment, and the bus is slow
Rush unit 500 for for the analog to digital signal conversion unit 400 export digital signal and the central processing unit
600 command informations issued provide temporary and buffering, and the central processing unit 600 is used to adopt for the underground multi-parameter signals
Collect unit 200 channel gating signal is provided and carries out two-way communication, the well with the analog to digital signal conversion unit 400
Lower power supply integrated management unit 700 is for providing required stable DC electric energy for entire signal processing circuit.
The well dynamic parameter measurement unit 100 include weight-on-bit measuring device 1001, torque-measuring apparatus 1002,
Rotation-speed measuring device 1003, three shaft vibration measuring devices 1004, environmental pressure measuring device 1005 and ambient temperature measuring device
1006；Wherein, weight-on-bit measuring device 1001, torque-measuring apparatus 1002 on tubing string outer wall by pasting specific direction and quantity
Foil gauge realize that remaining measuring device completed by corresponding sensor, when the weight-on-bit measuring device 1001 is used to creep into
The pressure for being applied to drill bit is monitored, the torque-measuring apparatus 1002 is used in drilling process at the nearly drill bit of bottom drill tool
The measurement of the torsional moment as caused by the drill string friction borehole wall and drill bit cutting bottom rock, the rotation-speed measuring device 1003 are used
The monitoring of drill bit rotating cycle per minute in bottom drill tool, the three shaft vibrations measuring device 1004 are used for bottom drill tool underground
Axial vibration, the monitoring of oscillation crosswise and twisting vibration at nearly drill bit, the environmental pressure measuring device 1005 in the course of work
It is measured for pressure in drill string/drill collar at the nearly drill bit of bottom drill tool and annular pressure, the ambient temperature measuring device 1006 is used
The measurement of downhole environment temperature when bottom drill tool underground work.
As shown in Fig. 2, multi-parameter signals acquisition unit 200 includes the first integrated circuit U1 and its peripheral circuit, the second collection
At circuit U 2 and its peripheral circuit, the first integrated circuit U1, the second integrated circuit U2 peripheral circuit include first resistor R1,
One capacitor C1, the second capacitor C2 and third capacitor C3；Wherein, the first integrated circuit U1 is variable connector, is selected
74HC4051 IC chip, the second integrated circuit U2 are operational amplifier, and the operation of LM2902D low-power is selected to put
Big device, A0~A7 pin of the first integrated circuit U1 are multiple signals input pin, are joined with the well dynamic
Each sensor output signal S in number measuring unit 100i(i=1,2,3,4,5,6) connection, the first integrated circuit U1's
GND pin ground connection, the down-hole power integrated management unit 700 that the VCC pin connection of the first integrated circuit U1 is described mention
+ 5V the DC power supply supplied, the one end first capacitor C1 connect the VCC pin of the first integrated circuit U1, and other end ground connection is described
The first integrated circuit U1 the -5V DC power supply that provides of the VEE pin connection down-hole power integrated management unit 700,
Second one end capacitor C2 connects the VEE pin of the first integrated circuit U1, and the other end is grounded, the first integrated circuit U1's
Pin E is enable end, and low level is effective, ground connection setting, and S0~S2 pin of the first integrated circuit U1 is gating control terminal,
It is connect by the bus buffer unit 500 with the central processing unit 600, for realizing the described first integrated electricity
The gating of A0~A7 pin of road U1 controls；The A pin of the first integrated circuit U1 is output pin, connects first resistor R1
One end, the other end of first resistor R1 connects the non-inverting input terminal of the second integrated circuit U2, one end of third capacitor C3
Connect the non-inverting input terminal of the second integrated circuit U2, other end ground connection, the inverting input terminal of the second integrated circuit U2
The output end of the second integrated circuit U2 is connected, the output end of the second integrated circuit U2 is multi-parameter signals acquisition
The output end of unit 200 connects the signal conditioning unit 300.
As shown in figure 3, the signal conditioning unit 300 includes third integrated circuit U3 and its peripheral components, the 4th collection
At circuit U 4 and its peripheral circuit, third integrated circuit U3, the 4th integrated circuit U4 peripheral circuit include second resistance R2,
Three resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6 and the 4th capacitor C4；Wherein, the third integrated circuit
U3 and the 4th integrated circuit U4 is operational amplifier, selection LM2902D low power operational amplifier, and the one of second resistance R2
End is signal input part, connects the output end of the multi-parameter signals acquisition unit 200, the other end connection of second resistance R2
The non-inverting input terminal of the third integrated circuit U3, one end connection of 3rd resistor R3 third integrated circuit U3's is same
Phase input terminal, other end ground connection, the inverting input terminal of the 4th one end resistance R4 connection third integrated circuit U3, the other end
Ground connection, the inverting input terminal of the 5th one end resistance R5 connection third integrated circuit U3, the other end connection third
Integrated circuit U3 output end, the 6th one end resistance R6 connection third integrated circuit U3 output end, described in other end connection
The non-inverting input terminal of 4th integrated circuit U4, the 4th capacitor C4 are filter capacitor, and anode connects the 4th integrated circuit U4's
Non-inverting input terminal, cathode ground connection, the inverting input terminal of the 4th integrated circuit U4 connect the defeated of the 4th integrated circuit U4
Outlet, the output end of the 4th integrated circuit U4 are the output end of signal conditioning unit 300.
As shown in figure 4, the analog to digital signal conversion unit 400 includes the 5th integrated circuit U5 and its periphery electricity
Road, the 6th integrated circuit U6 and its peripheral circuit, the 5th integrated circuit U5, the 6th integrated circuit U6 peripheral circuit include the 7th
Resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, the 5th capacitor
C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9 and the first crystal oscillator Y1；Wherein, the 5th integrated circuit
U5 is analog-digital conversion chip, selects the AD7710 chip of AD company, and the 6th integrated circuit U6 is or door to select
HD74HCT1G32 chip, the MCLK IN pin of the 5th integrated circuit U5 are external crystal oscillator input pin, and connection first is brilliant
The first pin of vibration Y1, the MCLK OUT pin of the 5th integrated circuit U5 are external crystal-controlled oscillation output pin, and connection first is brilliant
The second pin of vibration Y1, the 5th integrated circuit U5'sPin is synchronous logic input pin, and low level is effective, even
Connect+5V the DC power supply that the down-hole power integrated management unit 700 provides, the MODE pin of the 5th integrated circuit U5
For clock selecting pin, it is set as external clock mode, MODE pin ground connection, the AIN1 of the 5th integrated circuit U5 herein
(+) pin, AIN1 (-) pin, AIN2 (+) pin and AIN2 (-) pin are the analog to digital signal conversion unit 400
Input pin, AIN1 (+) pin of the 5th integrated circuit U5 connects the 4th integrated electricity in the signal conditioning unit 300
The output end of road U4, AIN1 (-) the pin connection of the 5th integrated circuit U5 down-hole power integrated management unit 700
- 5V the DC power supply provided, AIN2 (+) pin and AIN2 (-) the pin floating setting of the 5th integrated circuit U5, described the
The VSS pin of five integrated circuit U5 is negative power pins, connects-the 5V that the down-hole power integrated management unit 700 provides
DC power supply, the 5th capacitor C5 are electrolytic capacitor, and the plus earth of the 5th capacitor C5, the cathode of the 5th capacitor C5 connects described
- 5V the DC power supply that down-hole power integrated management unit 700 provides, the down-hole power that one end connection of the 6th capacitor C6 is described are comprehensive
Close -5V the DC power supply that administrative unit 700 provides, other end ground connection, the I of the 5th integrated circuit U5OUTPin compensates electric current
Output pin, hanging to be arranged, the AVDD pin of the 5th integrated circuit U5 is positive power input pin, connects the underground
+ 5V the DC power supply that power supply integrated management unit 700 provides, the DVDD pin of the 5th integrated circuit U5 are that digital power is defeated
Enter pin, connects+5V the DC power supply that the down-hole power integrated management unit 700 provides, the 5th integrated circuit U5
DGND pin be digitally pin, ground connection, the 7th capacitor C7 is electrolytic capacitor, the anode connection of the 7th capacitor C7 well
+ 5V the DC power supply that lower power supply integrated management unit 700 provides, the cathode ground connection of the 7th capacitor C7, one end of the 8th capacitor C8
+ 5V the DC power supply that the connection down-hole power integrated management unit 700 provides, other end ground connection, the one of the 9th capacitor C9
+ 5V the DC power supply that the connection down-hole power integrated management unit 700 in end provides, other end ground connection, the described 5th is integrated
The V of circuit U 5BIASPin is bias voltage input pin, and the AGND pin of ground connection setting, the 5th integrated circuit U5 is ground
Pin, ground connection, the REF OUT pin of the 5th integrated circuit U5 are internal reference voltage output pin, connection the described 5th
REF (IN-) reference voltage of REF (IN+) reference voltage positive input pin of integrated circuit U5, the 5th integrated circuit U5 is negative
Input pin ground connection, the SDATA pin of the 5th integrated circuit U5 are serial data pin, connect the bus buffer list
Member 500, the 5th integrated circuit U5'sPin is that synchronization frame receives pin, and low level is effective, connects the 7th resistance R7
One end, the other end connection of the 7th resistance R7 bus buffer unit 500, one end connection of the 8th resistance R8 is described
+ 5V the DC power supply that down-hole power integrated management unit 700 provides, the other end connection bus buffer unit 500 are described
5th integrated circuit U5'sPin is that synchronization frame sends pin, and low level is effective, one end of the 9th resistance R9 of connection, the 9th
The other end connection of the resistance R9 bus buffer unit 500, the down-hole power that one end connection of the tenth resistance R10 is described are comprehensive
Close+5V the DC power supply that administrative unit 700 provides, the other end connection bus buffer unit 500, the described 5th integrated electricity
The A0 pin of road U5 is address input pin, connects the 5th integrated circuit U5'sPin, the 5th integrated circuit
U5'sPin is logic output pin, and low level is effective, the 5th integrated circuit U5'sPin connection the
One end of 11 resistance R11, the down-hole power integrated management unit 700 that the other end connection of eleventh resistor R11 is described provide
+ 5V DC power supply, the SCLK pin of the 5th integrated circuit U5 is clock pins, connects the bus buffer unit
500, one end of twelfth resistor R12 connects the 4th integrated circuit U4'sPin, other end connection the described 6th
The A input pin of integrated circuit U6, the B input pin ground connection of the 6th integrated circuit U6, the Y output pin of the 6th integrated circuit U6
The connection bus buffer unit 500.
As shown in figure 5, the bus buffer unit 500 includes the 7th integrated circuit U7 and its peripheral circuit, the 7th collection
Peripheral circuit at circuit U 7 includes thirteenth resistor R13 and the tenth capacitor C10；Wherein, the 7th integrated circuit U7 choosing
With 74HCT244 bus buffer chip, the VCC pin of the 7th integrated circuit U7 is power pins, connects the underground electricity
+ 5V the DC power supply that source integrated management unit 700 provides, one end connection of the tenth capacitor C10 down-hole power integrated pipe
+ 5V the DC power supply that unit 700 provides is managed, the GND pin of other end ground connection, the 7th integrated circuit U7 is grounded, described
A1~A4 pin, the B1~B4 pin of 7th integrated circuit U7 is data-out pin, the YA1 of the 7th integrated circuit U7
~YA4 pin, YB1~YB4 pin be data output pins, the ENABLE A pin of the 7th integrated circuit U7,
ENABLE B pin is to export enabled pin, control respectively YA1~YA4 pin of the 7th integrated circuit U7, YB1~
The output of YB4 pin, A1~A4 pin, B1~B4 pin, the ENABLE A pin, ENABLE B of the 7th integrated circuit U7
The pin connection central processing unit 600, the YA1 pin connection of the 7th integrated circuit U7 analog to digital
The SCLK pin of 5th integrated circuit U5 in signal conversion unit 400, the 7th integrated circuit U7 YA2 pin connection described in
Analog to digital signal conversion unit 400 in the 7th resistance R7 and the 8th resistance R8 common end, the 7th integrated circuit U7
The YA3 pin connection analog to digital signal conversion unit 400 in the 9th resistance R9 and the tenth resistance R10 common end,
5th integrated circuit U5 in the YA4 pin connection of the 7th integrated circuit U7 analog to digital signal conversion unit 400
SDATA pin, the one end thirteenth resistor R13 connects the YA4 pin of the 7th integrated circuit U7, and other end ground connection is described
The Y of 6th integrated circuit U6 in the YB1 pin connection of the 7th integrated circuit U7 analog to digital signal conversion unit 400
Output pin, first is integrated in the YB2 pin connection of the 7th integrated circuit U7 multi-parameter signals acquisition unit 200
The S0 pin of circuit U 1, the in the YB3 pin connection of the 7th integrated circuit U7 multi-parameter signals acquisition unit 200
The S1 pin of one integrated circuit U1, the YB4 pin connection of the 7th integrated circuit U7 multi-parameter signals acquisition unit
The S2 pin of first integrated circuit U1 in 200.
As shown in fig. 6, downhole dynamics parameter signal processing method provided by the invention includes carrying out in order
The following steps：
a100：It starts to work：Bottom drill tool connection finishes, and downhole dynamics parameter signal processing circuit is installed on
On bottom drill tool, down-hole power total management system 700 starts to provide institute for downhole dynamics parameter signal processing circuit
Need D.C. regulated power supply；
a101：Sample frequency is set：Central processing unit 600 reads the sampling for each measurement parameter being previously written inside it
Frequency, central processing unit 600 pass through adopting for each parameter of the setting multi-parameter signals acquisition unit 200 of bus buffer unit 500
Sample frequency；
a102：Parameter measurement：Downhole dynamics parameter signal processing circuit enters well with bottom drill tool, and real-time measurement is bored
Kinetic parameter information including pressure, torque, revolving speed, vibration, environmental pressure, environment temperature；
a103：Signal acquisition：Central processing unit 600 gates multi-parameter signals according to the sample frequency of each parameter of setting
200 corresponding ports of acquisition unit acquire kinetic parameter information by well dynamic parameter measurement unit 100；
a104：Signal condition：Signal conditioning unit 300 measures well dynamic parameter measurement unit 100 obtained ginseng
Number information is amplified, is filtered, being isolated in interior pretreatment operation；
a105：Analog-to-digital conversion：Analog to digital signal conversion unit 400 carries out the signal that signal conditioning unit 300 exports
The conversion of analog quantity-digital quantity；
a106：Data processing：Central processing unit 600 reads the conversion of analog to digital signal by bus buffer unit 500
The digital signal that unit 400 exports；
a107：Tool goes out well：After construction, downhole dynamics parameter signal processing circuit with bottom drill tool together
Well out；
a108：Data analysis：The data for extracting the acquisition of downhole dynamics parameter signal processing circuit, divide it
Analysis is explained and is evaluated；
a109：Power cut-off：It disconnects down-hole power total management system 700 and downhole dynamics parameter signal is handled
The connection of circuit other parts terminates measurement work.
When work, bit pressure, torque, the revolving speed, vibration of 100 real-time measurement bottom drill tool of well dynamic parameter measurement unit
Dynamic, environmental pressure and environment temperature, according to the measuring signal currently to be sampled of central processing unit 600, multi-parameter signals acquisition
Unit 200 gates corresponding Measurement channel, carries out signal acquisition, and the measurement data acquired by 300 Duis of signal conditioning unit is put
Greatly, after filtering, being isolated, measurement data is sent into analog to digital signal conversion unit 400 at the quantization for measuring signal
Reason, bus buffer unit 500 is in multi-parameter signals acquisition unit 200, analog to digital signal conversion unit 400 and central processing
The temporary and buffering of information is carried out between unit 600, down-hole power integrated management unit 700 is used to be entire bottom drill tool underground
Multi-parameter processing circuit provides required stable DC electric energy.
The foregoing is merely the preferred embodiments of invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of downhole dynamics parameter signal processing circuit, it is characterised in that：The downhole dynamics parameter
Signal processing circuit includes：
Well dynamic parameter measurement unit (100), multi-parameter signals acquisition unit (200), signal conditioning unit (300), mould
Quasi--digital signal converting unit (400), bus buffer unit (500), central processing unit (600) and down-hole power integrated pipe
It manages unit (700)；Wherein well dynamic parameter measurement unit (100) connection multi-parameter signals acquisition unit (200), multi-parameter
Signal acquisition unit (200) connection signal conditioning unit (300), signal conditioning unit (300) connect the conversion of analog to digital signal
Unit (400), multi-parameter signals acquisition unit (200) and analog to digital signal conversion unit (400) pass through bus buffer unit
(500) central processing unit (600) are connected, down-hole power integrated management unit (700) connects well dynamic parameter measurement list
First (100), multi-parameter signals acquisition unit (200), signal conditioning unit (300), analog to digital signal conversion unit (400),
Bus buffer unit (500) and central processing unit (600).
2. downhole dynamics parameter signal processing circuit according to claim 1, it is characterised in that：The underground
Kinetic parameter measuring unit (100) includes weight-on-bit measuring device (1001), torque-measuring apparatus (1002), rotation-speed measuring device
(1003), three shaft vibration measuring devices (1004), environmental pressure measuring device (1005) and ambient temperature measuring device (1006)；
Wherein, weight-on-bit measuring device (1001), torque-measuring apparatus (1002) on tubing string outer wall by pasting specific direction and quantity
Foil gauge realize that remaining measuring device completed by corresponding sensor.
3. downhole dynamics parameter signal processing circuit according to claim 1, it is characterised in that：More ginsengs
Number signal acquisition unit (200) includes the first integrated circuit U1 and its peripheral circuit, the second integrated circuit U2 and its peripheral circuit,
First integrated circuit U1, the second integrated circuit U2 peripheral circuit include first resistor R1, first capacitor C1, the second capacitor C2 and
Third capacitor C3；Wherein, the first integrated circuit U1 is variable connector, selects 74HC4051 IC chip, described
The second integrated circuit U2 be operational amplifier, select LM2902D low power operational amplifier, the first integrated circuit U1
A0~A7 pin be multiple signals input pin, with the well dynamic parameter measurement unit (100) in each sensor
Output signal SiConnection, the GND pin ground connection of the first integrated circuit U1, the VCC of the first integrated circuit U1 draw
+ 5V the DC power supply that the foot connection down-hole power integrated management unit (700) provides, described in the connection of the one end first capacitor C1
The VCC pin of first integrated circuit U1, other end ground connection, the VEE pin connection of the first integrated circuit U1 well
- 5V the DC power supply that lower power supply integrated management unit (700) provides, second one end capacitor C2 connect the first integrated circuit U1
VEE pin, other end ground connection, the pin E of the first integrated circuit U1 is enable end, and low level is effective, ground connection setting, institute
S0~S2 pin of the first integrated circuit U1 is stated as gating control terminal, by the bus buffer unit (500) with it is described
Central processing unit (600) connection, for realizing the first integrated circuit U1 A0~A7 pin gating control；It is described
The A pin of first integrated circuit U1 is output pin, connects one end of first resistor R1, and the other end of first resistor R1 connects institute
The non-inverting input terminal of the second integrated circuit U2 is stated, one end of third capacitor C3 connects the homophase input of the second integrated circuit U2
End, other end ground connection, the inverting input terminal of the second integrated circuit U2 connect the output end of the second integrated circuit U2, institute
The output end for stating the second integrated circuit U2 is the output end of the multi-parameter signals acquisition unit (200), connects the signal tune
It manages unit (300).
4. downhole dynamics parameter signal processing circuit according to claim 1, it is characterised in that：The signal
Conditioning unit (300) includes third integrated circuit U3 and its peripheral components, the 4th integrated circuit U4 and its peripheral circuit, third collection
Peripheral circuit at circuit U 3, the 4th integrated circuit U4 includes second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th electricity
Hinder R5, the 6th resistance R6 and the 4th capacitor C4；Wherein, the third integrated circuit U3 and the 4th integrated circuit U4 is operation
Amplifier, selection LM2902D low power operational amplifier, one end of second resistance R2 are signal input part, are connected described
The output end of multi-parameter signals acquisition unit (200), the other end connection of the second resistance R2 third integrated circuit U3's
Non-inverting input terminal, the non-inverting input terminal of one end connection of 3rd resistor R3 third integrated circuit U3, other end ground connection, the
The inverting input terminal of four one end resistance R4 connection third integrated circuit U3, other end ground connection, the 5th one end resistance R5 connects
The inverting input terminal of third integrated circuit U3 described in connecing, the other end connection third integrated circuit U3 output end, the 6th
The one end resistance R6 connection third integrated circuit U3 output end, the other end connect the same mutually defeated of the 4th integrated circuit U4
Enter end, the 4th capacitor C4 is filter capacitor, and anode connects the non-inverting input terminal of the 4th integrated circuit U4, cathode ground connection, institute
The inverting input terminal for stating the 4th integrated circuit U4 connects the output end of the 4th integrated circuit U4, the 4th integrated circuit U4
Output end be signal conditioning unit (300) output end.
5. downhole dynamics parameter signal processing circuit according to claim 1, it is characterised in that：The mould
Quasi--digital signal converting unit (400) includes the 5th integrated circuit U5 and its peripheral circuit, the 6th integrated circuit U6 and its periphery
Circuit, the 5th integrated circuit U5, the 6th integrated circuit U6 peripheral circuit include the 7th resistance R7, the 8th resistance R8, the 9th electricity
Hinder R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor
C7, the 8th capacitor C8, the 9th capacitor C9 and the first crystal oscillator Y1；Wherein, the 5th integrated circuit U5 is analog-digital conversion chip,
The AD7710 chip of AD company is selected, the 6th integrated circuit U6 is or door to select HD74HCT1G32 chip, and the described 5th is integrated
The MCLK IN pin of circuit U 5 is external crystal oscillator input pin, connects the first pin of the first crystal oscillator Y1, the described 5th integrated electricity
The MCLK OUT pin of road U5 is external crystal-controlled oscillation output pin, connects the second pin of the first crystal oscillator Y1, the described 5th integrated electricity
Road U5'sPin is synchronous logic input pin, and low level is effective, connects the down-hole power integrated management unit
(700) the MODE pin of+5V DC power supply provided, the 5th integrated circuit U5 is clock selecting pin, is set as herein
External clock mode, MODE pin ground connection, AIN1 (+) pin, AIN1 (-) pin, AIN2 (+) of the 5th integrated circuit U5
Pin and AIN2 (-) pin are the input pin of the analog to digital signal conversion unit (400), the described 5th integrated electricity
AIN1 (+) pin of road U5 connects the output end of the 4th integrated circuit U4 in the signal conditioning unit (300), the 5th collection
At -5V the DC power supply that AIN1 (-) the pin connection of the circuit U 5 down-hole power integrated management unit (700) provides, institute
AIN2 (+) pin and the setting of AIN2 (-) pin floating, the VSS of the 5th integrated circuit U5 for stating the 5th integrated circuit U5 draw
Foot is negative power pins, connects -5V the DC power supply that the down-hole power integrated management unit (700) provides, the 5th capacitor
C5 is electrolytic capacitor, the plus earth of the 5th capacitor C5, the cathode connection of the 5th capacitor C5 down-hole power integrated management
- 5V the DC power supply that unit (700) provides, one end connection of the 6th capacitor C6 down-hole power integrated management unit
(700) -5V the DC power supply provided, other end ground connection, the I of the 5th integrated circuit U5OUTPin compensation electric current output is drawn
Foot, hanging to be arranged, the AVDD pin of the 5th integrated circuit U5 is positive power input pin, and it is comprehensive to connect the down-hole power
+ 5V the DC power supply that administrative unit (700) provide is closed, the DVDD pin of the 5th integrated circuit U5 is that digital power input is drawn
Foot connects the+5V DC power supply that the down-hole power integrated management unit (700) provides, the 5th integrated circuit U5's
DGND pin is that digitally pin, ground connection, the 7th capacitor C7 are electrolytic capacitor, the anode connection of the 7th capacitor C7 underground
+ 5V the DC power supply that power supply integrated management unit (700) provides, the cathode ground connection of the 7th capacitor C7, one end of the 8th capacitor C8
+ 5V the DC power supply that the connection down-hole power integrated management unit (700) provides, other end ground connection, the 9th capacitor C9's
+ 5V the DC power supply that connection down-hole power integrated management unit (700) in one end provides, other end ground connection, the described 5th
The V of integrated circuit U5BIASPin is bias voltage input pin, ground connection setting, the AGND pin of the 5th integrated circuit U5
For ground pin, ground connection, the REF OUT pin of the 5th integrated circuit U5 is internal reference voltage output pin, described in connection
REF (IN+) reference voltage positive input pin of 5th integrated circuit U5, the REF (IN-) of the 5th integrated circuit U5 is with reference to electricity
Negative input pin ground connection is pressed, the SDATA pin of the 5th integrated circuit U5 is serial data pin, and it is slow to connect the bus
It rushes unit (500), the 5th integrated circuit U5'sPin is that synchronization frame receives pin, and low level is effective, connection the 7th
One end of resistance R7, the other end connection of the 7th resistance R7 bus buffer unit (500), one end of the 8th resistance R8 connects
Connect+5V the DC power supply that the down-hole power integrated management unit (700) provides, the other end connection bus buffer list
First (500), the 5th integrated circuit U5'sPin is that synchronization frame sends pin, and low level is effective, connects the 9th resistance
One end of R9, the other end connection of the 9th resistance R9 bus buffer unit (500), one end connection of the tenth resistance R10
+ 5V the DC power supply that the down-hole power integrated management unit (700) provides, the other end connection bus buffer unit
(500), the A0 pin of the 5th integrated circuit U5 is address input pin, connects the 5th integrated circuit U5'sDraw
Foot, the 5th integrated circuit U5'sPin is logic output pin, and low level is effective, the 5th integrated circuit U5
'sPin connects one end of eleventh resistor R11, and the down-hole power that the other end connection of eleventh resistor R11 is described is comprehensive
+ 5V the DC power supply that administrative unit (700) provide is closed, the SCLK pin of the 5th integrated circuit U5 is clock pins, connection
The bus buffer unit (500), one end of twelfth resistor R12 connect the 4th integrated circuit U4'sDraw
Foot, the other end connect the A input pin of the 6th integrated circuit U6, and the B input pin of the 6th integrated circuit U6 is grounded, and the 6th
The Y output pin connection of the integrated circuit U6 bus buffer unit (500).
6. downhole dynamics parameter signal processing circuit according to claim 1, it is characterised in that：The bus
Buffer cell (500) includes the 7th integrated circuit U7 and its peripheral circuit, and the peripheral circuit of the 7th integrated circuit U7 includes the tenth
Three resistance R13 and the tenth capacitor C10；Wherein, the 7th integrated circuit U7 selects 74HCT244 bus buffer chip, described
The VCC pin of 7th integrated circuit U7 is power pins, connect that the down-hole power integrated management unit (700) provides+
5V the DC power supply ,+5V direct current that one end connection of the tenth capacitor C10 down-hole power integrated management unit (700) provides
Power supply, other end ground connection, the GND pin ground connection of the 7th integrated circuit U7, A1~A4 of the 7th integrated circuit U7
Pin, B1~B4 pin are data-out pin, YA1~YA4 pin, the YB1~YB4 pin of the 7th integrated circuit U7
For data output pins, ENABLE A pin, the ENABLE B pin of the 7th integrated circuit U7 is to export enabled pin,
YA1~YA4 pin, the output of YB1~YB4 pin of the 7th integrated circuit U7, the described the 7th integrated electricity are controlled respectively
A1~A4 pin of road U7, B1~B4 pin, ENABLE A pin, the connection of ENABLE B the pin central processing unit
(600), the 5th collection in the YA1 pin connection of the 7th integrated circuit U7 analog to digital signal conversion unit (400)
At the SCLK pin of circuit U 5, the YA2 pin connection of the 7th integrated circuit U7 analog to digital signal conversion unit
(400) common end of the 7th resistance R7 and the 8th resistance R8 in, the YA3 pin connection of the 7th integrated circuit U7 mould
The common end of 9th resistance R9 and the tenth resistance R10, the 7th integrated circuit U7 in quasi--digital signal converting unit (400)
The YA4 pin connection analog to digital signal conversion unit (400) in the 5th integrated circuit U5 SDATA pin, the tenth
Three one end resistance R13 connect the YA4 pin of the 7th integrated circuit U7, and the other end is grounded, the 7th integrated circuit U7's
The Y output pin of 6th integrated circuit U6 in the YB1 pin connection analog to digital signal conversion unit (400), described the
The S0 pin of first integrated circuit U1 in the YB2 pin connection of the seven integrated circuit U7 multi-parameter signals acquisition unit 200,
First integrated circuit U1 in the YB3 pin connection of the 7th integrated circuit U7 multi-parameter signals acquisition unit (200)
S1 pin, the first collection in the YB4 pin connection of the 7th integrated circuit U7 multi-parameter signals acquisition unit (200)
At the S2 pin of circuit U 1.
7. a kind of downhole dynamics using downhole dynamics parameter signal processing circuit described in claim 1 are joined
Digital signal processing method, it is characterised in that：The method includes the following steps carried out in order：
a100：It starts to work：Bottom drill tool connection finishes, and downhole dynamics parameter signal processing circuit is installed on bottom
On drilling tool, down-hole power total management system (700) starts needed for providing for downhole dynamics parameter signal processing circuit
D.C. regulated power supply；
a101：Sample frequency is set：Central processing unit (600) reads the sampling frequency for each measurement parameter being previously written inside it
Rate passes through the sample frequency of each parameter of bus buffer unit (500) setting multi-parameter signals acquisition unit (200)；
a102：Parameter measurement：Downhole dynamics parameter signal processing circuit enters well with bottom drill tool, real-time measurement bit pressure,
Kinetic parameter information including torque, revolving speed, vibration, environmental pressure, environment temperature；
a103：Signal acquisition：Central processing unit (600) is adopted according to the sample frequency gating multi-parameter signals of each parameter of setting
Collect unit (200) corresponding ports, acquires kinetic parameter information by well dynamic parameter measurement unit (100)；
a104：Signal condition：Signal conditioning unit (300) measures well dynamic parameter measurement unit (100) obtained ginseng
Number information is amplified, is filtered, being isolated in interior pretreatment operation；
a105：Analog-to-digital conversion：Analog to digital signal conversion unit (400) carries out the signal that signal conditioning unit (300) exports
The conversion of analog quantity-digital quantity；
a106：Data processing：Central processing unit (600) reads the conversion of analog to digital signal by bus buffer unit (500)
The digital signal of unit (400) output；
a107：Tool goes out well：After construction, downhole dynamics parameter signal processing circuit goes out together with bottom drill tool
Well；
a108：Data analysis：The data for extracting the acquisition of downhole dynamics parameter signal processing circuit, analyze it,
It explains and evaluates；
a109：Power cut-off：Disconnect down-hole power total management system (700) and downhole dynamics parameter signal processing electricity
The connection of road other parts terminates measurement work.
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