CN109238453A - A kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor - Google Patents
A kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor Download PDFInfo
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- CN109238453A CN109238453A CN201811320429.3A CN201811320429A CN109238453A CN 109238453 A CN109238453 A CN 109238453A CN 201811320429 A CN201811320429 A CN 201811320429A CN 109238453 A CN109238453 A CN 109238453A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The present invention provides a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor, vibration of elevator data acquisition circuit includes power isolation module, power circuit conversion module, 3-axis acceleration sensor, analog and digital signal isolation module, and analog-to-digital conversion module, power isolation module is isolated by external power supply, and power isolation module is connect with power circuit conversion module, supply voltage needed for supply voltage needed for 12V power supply is converted to 3-axis acceleration sensor by power circuit conversion module and analog-to-digital conversion module, the analog signal data of acquisition is converted to digital signal data by analog-to-digital conversion module by 3-axis acceleration sensor, analog and digital signal isolation module is connect with analog-to-digital conversion module and Back end data processing system respectively, analog and digital signal isolation module prevents Back end data from handling The noise of system is transferred on vibration of elevator data acquisition circuit by conduction pattern, reduces the noise jamming of vibration of elevator data acquisition circuit.
Description
Technical field
The present invention relates to special equipment technical field, especially a kind of vibration of elevator number with 3-axis acceleration sensor
According to Acquisition Circuit.
Background technique
Vibration of elevator and elevator ride comfort are closely bound up, and EVA is the common tool of vibration of elevator test, but EVA valence
Lattice are expensive, volume is heavy, inconvenient to carry.It is destined in Back end data processing system after existing vibration of elevator data acquisition
CPU carry out subsequent processing, but the noise of digital circuit can be bigger in Back end data processing system；Elevator is shaken in this way
After dynamic data acquisition circuit is directly connect with Back end data processing system, the noise meeting of digital circuit in Back end data processing system
It is transferred on data acquisition circuit by conduction pattern, the data accuracy for causing vibration of elevator data acquisition circuit to acquire in this way
It is relatively low.And existing 3-axis acceleration sensor is difficult to realize the fixed problem of 3 direction sensors, three axis in 3 directions
The differential signal sensitivity that acceleration transducer obtains is not high.
Summary of the invention
In order to overcome the problems referred above, the object of the present invention is to provide a kind of vibration of elevator number with 3-axis acceleration sensor
According to Acquisition Circuit, the data acquisition in 3 directions is realized, the signal-to-noise ratio of hoisting elevator vibrating data collection circuit, having reduces
The effect of noise.
The present invention is realized using following scheme: a kind of vibration of elevator data acquisition electricity with 3-axis acceleration sensor
Road, the vibration of elevator data acquisition circuit are connect with Back end data processing system, the vibration of elevator data acquisition circuit packet
Include power isolation module, power circuit conversion module, 3-axis acceleration sensor, analog and digital signal isolation module and
External power supply is isolated for analog-to-digital conversion module, the power isolation module, and power isolation module and the power circuit
Conversion module connection, the electricity of power supply needed for 12V power supply is converted to 3-axis acceleration sensor by the power circuit conversion module
The analog signal data of acquisition is passed through institute by supply voltage needed for pressure and analog-to-digital conversion module, the 3-axis acceleration sensor
State analog-to-digital conversion module and be converted to digital signal data, the analog and digital signal isolation module respectively with the analog-to-digital conversion
Module is connected with Back end data processing system, and the analog and digital signal isolation module prevents making an uproar for Back end data processing system
Sound is transferred on vibration of elevator data acquisition circuit by conduction pattern, and the noise for reducing vibration of elevator data acquisition circuit is dry
It disturbs；The 3-axis acceleration sensor includes bottom plate and the shell that is placed on bottom plate, is fixedly installed in the x-axis direction of the bottom plate
There is a first circuit board, be fixedly installed a second circuit board on the y-axis direction of the bottom plate, on the z-axis direction of the bottom plate
It is fixedly installed a tertiary circuit plate, the first circuit board, second circuit board, tertiary circuit plate form orthogonal knot two-by-two
Structure is respectively mounted acceleration sensor module on the first circuit board, second circuit board and tertiary circuit plate and for adjusting
The conditioning circuit of sensing data precision, the conditioning circuit are connect with the acceleration sensor module, first circuit
The acceleration sensor module in acceleration sensor module, second circuit board on plate, the acceleration on tertiary circuit plate pass
Sensor module formed be capable of measuring x-axis, y-axis, three directions of z-axis acceleration signal.
Further, the power isolation module includes power module URB2412YMD-10WR3, capacitor C87, capacitor
C88, electrolytic capacitor CD17, capacitor C86, capacitor C85 and electrolytic capacitor CD16, the capacitor C87, capacitor C88, electrolysis electricity
It is in parallel to hold CD17, one end of the electrolytic capacitor CD17 is connect with internal electric source, and the other end of electrolytic capacitor CD17 and simulation are believed
Number ground wire GND connection, the one end the capacitor C87 are connect with the VOUT pin of power module URB2412YMD-10WR3, the electricity
Hold the C87 other end to connect with the VGND pin of power module URB2412YMD-10WR3, the capacitor C86, capacitor C85, electrolysis
Capacitor CD16 is in parallel, and one end of the electrolytic capacitor CD16 is connect with external power supply, the other end and number of electrolytic capacitor CD16
Signal ground DGND connection, the one end the capacitor C85 is connect with the VIN pin of power module URB2412YMD-10WR3, described
The capacitor C85 other end is connect with the EARTH pin of power module URB2412YMD-10WR3.
Further, the power circuit conversion module includes that 12V power supply turns 9V power circuit, 9V power supply turns 3.3V power supply
Circuit, 9V power supply turn 2.5V power circuit and 9V power supply turns 5V power circuit, the 12V power supply turn 9V power circuit with it is described
Power isolation module connection, the 9V power supply turns 3.3V power circuit, 9V power supply turns 2.5V power circuit, 9V power supply turns 5V power supply
Circuit on one side turns 9V power circuit with the 12V power supply and connect, and the 9V power supply turns 3.3V power circuit, 9V power supply turns 2.5V
Power circuit, 9V power supply turn the 5V power circuit other end and connect with the analog-to-digital conversion module, the 3-axis acceleration sensing
Device turns 3.3V power circuit with the 9V power supply and connect.
Further, it includes LM317DCY chip, capacitor C8, chip inductor B2, electricity that the 12V power supply, which turns 9V power circuit,
Solve capacitor CD3, capacitor C9, resistance R14, capacitor C12, resistance R11, diode D3, resistance R9, electrolytic capacitor CD2, capacitor C6,
Capacitor C7 and resistance R953；One end and the capacitor C8, chip inductor B2 go here and there after the electrolytic capacitor CD3, capacitor C9 are in parallel
Connection, the other end are connect with the VIN pin of LM317DCY chip；The capacitor C8 and the internal electric source of the power isolation module connect
It connects, one end is connect with the ADJ pin of LM317DCY chip after the resistance R14 is in parallel with capacitor C12, the other end and analog signal
Ground wire GND connection；One end is connect with the OUT pin of LM317DCY chip after the resistance R11, diode D3 parallel connection, the other end
It is connect with capacitor C12；One end and resistance R9 mono- after the electrolytic capacitor CD2, capacitor C6, capacitor C7 and resistance R953 parallel connection
End connection, the other end are connect with analog signal ground wire GND；The resistance R9 other end is connect with the diode D3；
It includes: AZ1117H-3.3TRG1 chip, capacitor C17, capacitor C18, capacitor that the 9V power supply, which turns 3.3V power circuit,
One end and the 12V power supply turn 9V power circuit after C19, capacitor C20, resistance R51, the capacitor C17, capacitor C18 are in parallel
Capacitor C7 connection, the other end are connect with the IN pin of the AZ1117H-3.3TRG1 chip, the AZ1117H-3.3TRG1 core
The VOUT pin and OUT pins in parallel of piece, one end and AZ1117H- after the capacitor C19, capacitor C20, resistance R51 are in parallel
The VOUT pin of 3.3TRG1 chip connects, and the other end is connect with analog signal ground wire GND；
The 9V power supply turn 2.5V power circuit include: AZ1117EHADJ chip, capacitor C26, capacitor C27, resistance R19,
One end and the 12V power supply turn after resistance R20, capacitor C22, capacitor C23, resistance R50, the capacitor C26, capacitor C27 are in parallel
The capacitor C7 connection of 9V power circuit, the other end are connect with the VIN pin of AZ1117EHADJ chip；The resistance R19, resistance
R20 series connection, the one end the resistance R20 connect with the ADJ pin of the AZ1117EHADJ chip, the other end with it is described
The OUT pin of AZ1117EHADJ chip connects；After the capacitor C22, capacitor C23, resistance R50 are in parallel one end with it is described
The OUT pin of AZ1117EHADJ chip connects, and the other end is connect with analog signal ground wire GND；
It includes: ADR4533ARZ chip, capacitor C50, chip inductor B9, electrolytic capacitor that the 9V power supply, which turns 5V power circuit,
CD13, capacitor C51, resistance R34, electrolytic capacitor CD14, capacitor C52, capacitor C53, the electrolytic capacitor CD13, capacitor C51 are simultaneously
One end is connected with the capacitor C50, chip inductor B9 after connection, and the other end is connect with the Vin pin of ADR4533ARZ chip；It is described
One end is connect with resistance R34 after electrolytic capacitor CD14, capacitor C52, capacitor C53 parallel connection, and the other end and analog signal ground wire GND connect
It connects, the resistance R34 is connect with the VOUT pin of the ADR4533ARZ chip.
Further, the acceleration sensor module includes J39 socket and sensor, the sensor and the J39
Socket connection, the sensor includes E6308 chip, capacitor C3, capacitor C4, capacitor C10, resistance R6, resistance R7, the capacitor
C4 is in parallel with the capacitor C3 after connecting with capacitor C10, the capacitor of the capacitor C3 and the AZ1117H-3.3TRG1 chip
5th pin of C20 connection, the J39 socket is connect with the ST pin of the E6308 chip, the one end the capacitor C4 with it is described
The VDD pin of E6308 chip connects, and the other end is connect with the VMID pin of the E6308 chip；The resistance R6 with it is described
The OUTN pin connection of E6308 chip, the resistance R7 are connect with the OUTP pin of the E6308 chip.
Further, described for adjust the conditioning circuit of sensing data precision to include ADA4528-2TCPZ chip, electricity
Hold C11, the one end the capacitor C11 is connect with the V+ pin of ADA4528-2TCPZ chip, and the other end and the 9V power supply turn 5V electricity
The capacitor C53 connection of source circuit, the OUTA pin and-INA pins in parallel of the ADA4528-2TCPZ chip are described
+ INA the pin of ADA4528-2TCPZ chip is connect by the resistance R7 with the OUTP pin of the E6308 chip, described
+ INB the pin of ADA4528-2TCPZ chip is connect by the resistance R76 with the OUTN pin of the E6308 chip.
Further, the analog-to-digital conversion module includes AD7766 chip, resistance R41, resistance R45, capacitor C71, capacitor
C80, capacitor C57, capacitor C72, capacitor C73, the 1st pin and the 12V power supply of the J39 socket turn the electricity of 9V power circuit
Hold C7 connection, the 2nd pin of the J39 socket is connect by the resistance R41 with the VIN+ pin of the AD7766 chip, institute
The 3rd pin for stating J39 socket is connect by the resistance R45 with the VIN- pin of the AD7766 chip, the J39 socket
4th pin is connect with analog signal ground wire GND, and the VRef+ pin of the AD7766 chip is electric with the capacitor C71 and 9V respectively
Source turns the capacitor C53 connection of 5V power circuit, the capacitor C80 and capacitor C57 it is in parallel after one end and the AD7766 chip
The connection of AVdd pin, the other end are connect with analog signal ground wire GND；The AVdd pin of the AD7766 chip and the 9V power supply
Turn the capacitor C23 connection of 2.5V power circuit, the DVdd pin of the AD7766 chip turns 2.5V electricity with the 9V power supply respectively
The capacitor C23 of source circuit is connected with capacitor C72, and the Vdrive pin of the AD7766 chip turns 3.3V with the 9V power supply respectively
The capacitor C20 of power circuit is connected with capacitor C73.
Further, the analog and digital signal isolation module includes ADUM3151A chip, ACPL_M61 chip, electricity
Hold C89, resistance R70, resistance R71, resistance R72, resistance R73, resistance R79, capacitor C95, resistance R48, resistance R74, resistance
R77, resistance R78 and capacitor C96, the VDD1 pin of the VDD pin of the ACPL_M61 chip and the ADUM3151A chip
Connection, the resistance R74 are connect with the Anode pin of the ACPL_M61 chip, the resistance R77 and the ACPL_M61 core
The Cathode pin of piece connects, and the resistance R78 is connect with the VO pin of the ACPL_M61 chip, the ADUM3151A core
The VDD2 pin of piece is connect with the Vdrive pin of the AD7766 chip, the capacitor C89 and the ADUM3151A chip
The connection of VDD2 pin, the resistance R70 connect with the SCLK pin of the ADUM3151A chip, the resistance R71 with it is described
The SO pin of ADUM3151A chip connects, and the resistance R72 is connect with the nSSS pin of the ADUM3151A chip, the electricity
Resistance R73 is connect with the VOA pin of the ADUM3151A chip, the VOB pin of the resistance R79 and the ADUM3151A chip
Connection, the capacitor C95 are connect with the VDD1 pin of the ADUM3151A chip, the resistance R48 and the ADUM3151A
The VIB pin of chip connects.
Further, there are two the first fixed plates for the bottom plate Right vertical setting, and two the first fixed plates are set side by side
It sets, there are two the second fixed plates for the lower vertical setting of the bottom plate, and two the second fixed plates are arranged side by side, first electricity
Road plate is fixed in two the second fixed plates, and the second circuit board is fixed in two the first fixed plates, the tertiary circuit
Plate is fixed on the surface of bottom plate, and tertiary circuit plate and first circuit board, second circuit board are mutually vertical.
Further, a route hole, the first circuit board, second circuit board, tertiary circuit are offered on the shell
Route on plate is pierced by after twisting into one from the route hole.
Further, the acceleration information obtained to 3-axis acceleration sensor is filtered, to reduce the external world
The interference of interference signal, the filtering processing specifically: by 2000hz sample rate, first the acceleration initial data of acquisition is carried out
50hz notch filter algorithm:
y50(k)=- A (1,2) * y50(k-1)-A(1,3)*y50(k-2)+B(1,1)*x(k)+B(1,2)*x(k-1)+B(1,
3) * x (k-2), wherein
X (k) is that the acceleration at k moment samples original value, y50It (k) is the acceleration information after 50hz notch filter；
A (i, j) representing matrix
A the i-th row j column data；B (i, j) representing matrix B the i-th row j column data；ω0For trapper trap frequency, 50hz, ω are takenfFor signal
Sample frequency, α are trapper coefficient, take 0.9；
100hz notch filter algorithm is carried out to the acceleration information after 50hz notch filter algorithm again:
y100(k)=- C (1,2) * y100(k-1)-C(1,3)*y100(k-2)+D(1,1)*y50(k)+D(1,2)*y50(k-1)
+D(1,3)*y50(k-2)
Wherein y100It (k) is the acceleration information after 100hz notch filter；
C (i, j) representing matrix
C the i-th row j column data；D (i, j) representing matrix D the i-th row j column data；ω1For trapper trap frequency, 100hz, ω are takenfFor letter
Number sample frequency, α are trapper coefficient, take 0.9；
Finally, 100hz notch filter post-acceleration data pass through second order Chebyshev's low pass that cutoff frequency is 120hz again
Filtering, and the 3-axis acceleration data of second order Chebyshev's low-pass filtering are used for a time integral and obtain three axle speed degrees
According to the 3-axis acceleration data of second order Chebyshev's low-pass filtering obtain the location information of elevator for secondary time integral.
The beneficial effects of the present invention are: isolated from power mould is provided in vibration of elevator data acquisition circuit of the invention
Block, power circuit conversion module, analog and digital signal isolation module, power isolation module is by the power supply of external power supply and equipment
Isolation is carried out, so as to the signal-to-noise ratio of hoisting elevator vibrating data collection circuit, reduces the effect of noise, analog- and digital- letter
Number isolation module is completely isolated by digital signal and analog signal both ends, improves the acquisition of vibration of elevator data acquisition circuit in this way
The accuracy of data；In addition, 3-axis acceleration sensor is by the acceleration sensor module on three circuit boards according to stringent
X, tri- axis of Y, Z is fixedly mounted on inside metal shell；The sensor differential signal output of 3 direction and sensitivities may be implemented；
It solves in many applications, consumer products are difficult to realize the fixed problem of 3 direction sensors；Then pass through signal condition electricity
Lu Hou optimizes the impedance characteristic of sensor signal.And the acceleration information by obtaining to 3-axis acceleration sensor carries out
Filtering processing, to reduce the interference of extraneous interference signal, to improve the accuracy of acceleration information.
Detailed description of the invention
Fig. 1 is electrical block diagram of the invention.
Fig. 2 is the structural schematic diagram of detailed circuit of the invention.
Fig. 3 is the detailed construction schematic diagram of power isolation module of the invention.
Fig. 4 is the detailed construction schematic diagram of power circuit conversion module of the invention.
Fig. 5 is the detailed construction schematic diagram of sensor of the invention and conditioning circuit connection relationship.
Fig. 6 is the detailed construction schematic diagram of analog-to-digital conversion module of the invention.
Fig. 7 is the detailed construction schematic diagram of analog and digital signal isolation module of the invention.
Fig. 8 is the structural schematic diagram that bottom plate of the present invention and shell are assembled together.
Fig. 9 is bottom plate top view of the invention.
Figure 10 is bottom panel side structural schematic diagram of the invention.
Figure 11 is the side structure schematic diagram of shell of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
It please refers to shown in Fig. 1 to Figure 11, a kind of vibration of elevator data with 3-axis acceleration sensor of the invention are adopted
Collector, the vibration of elevator data acquisition circuit are connect with Back end data processing system, the vibration of elevator data acquisition electricity
Road include power isolation module, power circuit conversion module, 3-axis acceleration sensor, analog and digital signal isolation module,
And external power supply is isolated for analog-to-digital conversion module, the power isolation module, and power isolation module and the power supply
Circuit conversion module connection, electricity needed for 12V power supply is converted to 3-axis acceleration sensor by the power circuit conversion module
Supply voltage needed for source voltage and analog-to-digital conversion module, the 3-axis acceleration sensor lead to the analog signal data of acquisition
Cross the analog-to-digital conversion module and be converted to digital signal data, the analog and digital signal isolation module respectively with the modulus
Conversion module is connected with Back end data processing system, and the analog and digital signal isolation module prevents Back end data processing system
Noise be transferred on vibration of elevator data acquisition circuit by conduction pattern, reduce making an uproar for vibration of elevator data acquisition circuit
Acoustic jamming.Wherein, the entire circuit diagram of Fig. 1 is divided into two parts of left and right side；I.e. left side is vibration of elevator data acquisition circuit,
Right side is Back end data processing system；Two parts of left and right side, external power supply by power isolation module (golden rising Yang
URB2412YMD-10WR3 isolation) is realized；And the signal of communication of two parts of left and right side by analog and digital signal every
From in module ADUM3151A chip and ACPL-M61 chip realize isolation；So the ground wire on left and right side both sides
It is also completely insulated；Thus the noise then above the Back end data processing system on right side would not be passed by conduction pattern
It is defeated to arrive right part Acquisition Circuit；To reduce the noise jamming to the acquisition of left side circuit signal；It is able to ascend whole system
The signal-to-noise ratio of data acquisition circuit.The 3-axis acceleration sensor includes bottom plate 1 and the shell 2 that is placed on bottom plate, the bottom
It is fixedly installed a first circuit board 3 in the x-axis direction of plate 1, is fixedly installed a second circuit on the y-axis direction of the bottom plate
Plate 4 is fixedly installed a tertiary circuit plate 5, the first circuit board 3, second circuit board 4, on the z-axis direction of the bottom plate
Three-circuit plate 5 forms orthogonal structure two-by-two, is respectively mounted on the first circuit board, second circuit board and tertiary circuit plate
Acceleration sensor module and conditioning circuit for adjusting sensing data precision, the conditioning circuit and the acceleration pass
Sensor module connects, the acceleration sensor module on the first circuit board, the acceleration transducer mould on second circuit board
Acceleration sensor module on block, tertiary circuit plate formed be capable of measuring x-axis, y-axis, three directions of z-axis acceleration signal；From
And make a high-precision acceleration transducer fixed bin.Wherein, using the central point of the bottom plate as 0 point of one coordinate of formation
System, so that bottom plate forms x-axis, y-axis, z-axis direction.
In the present invention, the power isolation module includes power module URB2412YMD-10WR3, capacitor C87, capacitor
C88, electrolytic capacitor CD17, capacitor C86, capacitor C85 and electrolytic capacitor CD16, the capacitor C87, capacitor C88, electrolysis electricity
It is in parallel to hold CD17, one end of the electrolytic capacitor CD17 is connect with internal electric source, and the other end of electrolytic capacitor CD17 and simulation are believed
Number ground wire GND connection, the one end the capacitor C87 are connect with the VOUT pin of power module URB2412YMD-10WR3, the electricity
Hold the C87 other end to connect with the VGND pin of power module URB2412YMD-10WR3, the capacitor C86, capacitor C85, electrolysis
Capacitor CD16 is in parallel, and one end of the electrolytic capacitor CD16 is connect with external power supply, the other end and number of electrolytic capacitor CD16
Signal ground DGND connection, the one end the capacitor C85 is connect with the VIN pin of power module URB2412YMD-10WR3, described
The capacitor C85 other end is connect with the EARTH pin of power module URB2412YMD-10WR3.
The power circuit conversion module includes that 12V power supply turns 9V power circuit, 9V power supply turns 3.3V power circuit, 9V electricity
Source turns 2.5V power circuit and 9V power supply turns 5V power circuit, and the 12V power supply turns 9V power circuit and the isolated from power
Module connection, the 9V power supply turns 3.3V power circuit, 9V power supply turns 2.5V power circuit, 9V power supply turns 5V power circuit one end
Turn 9V power circuit with the 12V power supply to connect, the 9V power supply turns 3.3V power circuit, 9V power supply turns 2.5V power supply electricity
Road, 9V power supply turn the 5V power circuit other end and connect with the analog-to-digital conversion module, the 3-axis acceleration sensor and institute
It states 9V power supply and turns the connection of 3.3V power circuit.
It includes LM317DCY chip, capacitor C8, chip inductor B2, electrolytic capacitor that the 12V power supply, which turns 9V power circuit,
CD3, capacitor C9, resistance R14, capacitor C12, resistance R11, diode D3, resistance R9, electrolytic capacitor CD2, capacitor C6, capacitor C7,
And resistance R953；One end is connected with the capacitor C8, chip inductor B2 after the electrolytic capacitor CD3, capacitor C9 parallel connection, another
End is connect with the VIN pin of LM317DCY chip；The capacitor C8 is connect with the internal electric source of the power isolation module, described
One end is connect with the ADJ pin of LM317DCY chip after resistance R14 is in parallel with capacitor C12, the other end and analog signal ground wire GND
Connection；One end is connect with the OUT pin of LM317DCY chip after the resistance R11, diode D3 parallel connection, the other end and capacitor
C12 connection；One end is connect with the one end resistance R9 after the electrolytic capacitor CD2, capacitor C6, capacitor C7 and resistance R953 parallel connection,
The other end is connect with analog signal ground wire GND；The resistance R9 other end is connect with the diode D3；The 12V power supply turns 9V
Power circuit provides power supply for 3-axis acceleration sensor, also turns 3.3V power circuit for 9V power supply, 9V power supply turns 2.5V power supply
Circuit, 9V power supply turn 5V power circuit and provide power supply.
It includes: AZ1117H-3.3TRG1 chip, capacitor C17, capacitor C18, capacitor that the 9V power supply, which turns 3.3V power circuit,
One end and the 12V power supply turn 9V power circuit after C19, capacitor C20, resistance R51, the capacitor C17, capacitor C18 are in parallel
Capacitor C7 connection, the other end are connect with the IN pin of the AZ1117H-3.3TRG1 chip, the AZ1117H-3.3TRG1 core
The VOUT pin and OUT pins in parallel of piece, one end and AZ1117H- after the capacitor C19, capacitor C20, resistance R51 are in parallel
The VOUT pin of 3.3TRG1 chip connects, and the other end is connect with analog signal ground wire GND；
The 9V power supply turn 2.5V power circuit include: AZ1117EHADJ chip, capacitor C26, capacitor C27, resistance R19,
One end and the 12V power supply turn after resistance R20, capacitor C22, capacitor C23, resistance R50, the capacitor C26, capacitor C27 are in parallel
The capacitor C7 connection of 9V power circuit, the other end are connect with the VIN pin of AZ1117EHADJ chip；The resistance R19, resistance
R20 series connection, the one end the resistance R20 connect with the ADJ pin of the AZ1117EHADJ chip, the other end with it is described
The OUT pin of AZ1117EHADJ chip connects；After the capacitor C22, capacitor C23, resistance R50 are in parallel one end with it is described
The OUT pin of AZ1117EHADJ chip connects, and the other end is connect with analog signal ground wire GND；
It includes: ADR4533ARZ chip, capacitor C50, chip inductor B9, electrolytic capacitor that the 9V power supply, which turns 5V power circuit,
CD13, capacitor C51, resistance R34, electrolytic capacitor CD14, capacitor C52, capacitor C53, the electrolytic capacitor CD13, capacitor C51 are simultaneously
One end is connected with the capacitor C50, chip inductor B9 after connection, and the other end is connect with the Vin pin of ADR4533ARZ chip；It is described
One end is connect with resistance R34 after electrolytic capacitor CD14, capacitor C52, capacitor C53 parallel connection, and the other end and analog signal ground wire GND connect
It connects, the resistance R34 is connect with the VOUT pin of the ADR4533ARZ chip.
Since AD7766 chip needs to use 3 road power supplys, turn 3.3V power circuit, 9V power supply provided with 9V power supply
Turn 2.5V power circuit, 9V power supply turns 5V power circuit, those power circuits be respectively 3.3V, 2.5V and 5V reference electricity
Pressure；Realize that 9V is transformed into 3.3V with AZ1117-3.3TRG1；The power supply conversion of 9V to 2.5v is realized with AZ1117EHADJ；With
The ultra-low noise of ADR4533ARZ chip, high-precision reference voltage source chip realize the conversion of 9V to 5V reference voltage.In addition,
Wherein, 9V power supply turns 3.3V power circuit also and is the power supply of the sensor in 3-axis acceleration sensor, and 9V power supply turns 5V power supply electricity
Road is the conditioning circuit power supply in 3-axis acceleration sensor.
The acceleration sensor module includes J39 socket and sensor, and the sensor is connect with the J39 socket,
The sensor includes E6308 chip, capacitor C3, capacitor C4, capacitor C10, resistance R6, resistance R7, the capacitor C4 and capacitor
In parallel with the capacitor C3 after C10 series connection, the capacitor C3 is connect with the capacitor C20 of the AZ1117H-3.3TRG1 chip, institute
The 5th pin for stating J39 socket is connect with the ST pin of the E6308 chip, the one end the capacitor C4 and the E6308 chip
The connection of VDD pin, the other end are connect with the VMID pin of the E6308 chip；The resistance R6 and the E6308 chip
The connection of OUTN pin, the resistance R7 are connect with the OUTP pin of the E6308 chip.
It is described for adjust the conditioning circuit of sensing data precision to include ADA4528-2TCPZ chip, capacitor C11, institute
It states the one end capacitor C11 to connect with the V+ pin of ADA4528-2TCPZ chip, the other end and the 9V power supply turn 5V power circuit
Capacitor C53 connection, the OUTA pin and-INA pins in parallel of the ADA4528-2TCPZ chip, the ADA4528-2TCPZ core
+ INA the pin of piece is connect by the resistance R7 with the OUTP pin of the E6308 chip, the ADA4528-2TCPZ chip
+ INB pin connect with the OUTN pin of the E6308 chip by the resistance R76.Wherein, the 4th pin of E6308 chip
With the anode and negative terminal of the analog voltage differential output signal that the 5th pin is acceleration transducer；The differential signal is connected to ADI
Ultra-low noise, the null offset single channel high precision operating amplifier chip of company (Ya De promise semiconductor technology Co., Ltd) are made
For the conditioning chip option A DA4528-2TCPZ of differential voltage output；1st pin of the ADA4528-2TCPZ chip and the 7th
Pin is the positive and negative anodes of the difference output after amplifier improves.
The analog-to-digital conversion module includes AD7766 chip, resistance R41, resistance R45, capacitor C71, capacitor C80, capacitor
C57, capacitor C72, capacitor C73, the capacitor C7 that the 1st pin and the 12V power supply of the J39 socket turn 9V power circuit connect
It connects, the 2nd pin of the J39 socket is connect by the resistance R41 with the VIN+ pin of the AD7766 chip, the J39
3rd pin of socket is connect by the resistance R45 with the VIN- pin of the AD7766 chip, and the 4th of the J39 socket is drawn
Foot is connect with analog signal ground wire GND, and the VRef+ pin of the AD7766 chip turns with capacitor C71 and the 9V power supply respectively
The AVdd of one end and the AD7766 chip after the capacitor C53 connection of 5V power circuit, the capacitor C80 and capacitor C57 parallel connection
Pin connection, the other end are connect with analog signal ground wire GND；The AVdd pin of the AD7766 chip and the 9V power supply turn
The capacitor C23 connection of 2.5V power circuit, the DVdd pin of the AD7766 chip turn 2.5V power supply with the 9V power supply respectively
The capacitor C23 of circuit is connected with capacitor C72, and the Vdrive pin of the AD7766 chip turns 3.3V electricity with the 9V power supply respectively
The capacitor C20 of source circuit is connected with capacitor C73.
Wherein, J39 socket is the socket for being connected to the analog signals difference output of 3-axis acceleration sensor；Three axis adds
Velocity sensor uses 9V power supply power supply；Then 3-axis acceleration sensor data are transmitted out by analog difference signal；It will
Sensor Analog Relay System differential signal is connected to 24bit ADC conversion chip AD7766；Analog difference signal is converted to realize
The purpose of the digital signal of SPI interface.5th pin ST3.3V of J39 socket is reserved acceleration transducer self-test signal,
It is directly connected to the corresponding self-checking function pin of acceleration transducer.
The analog and digital signal isolation module includes ADUM3151A chip, ACPL_M61 chip, capacitor C89, resistance
R70, resistance R71, resistance R72, resistance R73, resistance R79, capacitor C95, resistance R48, resistance R74, resistance R77, resistance R78 with
And capacitor C96, the VDD pin of the ACPL_M61 chip are connect with the VDD1 pin of the ADUM3151A chip, the resistance
R74 is connect with the Anode pin of the ACPL_M61 chip, and the Cathode of the resistance R77 and the ACPL_M61 chip draw
Foot connection, the resistance R78 are connect with the VO pin of the ACPL_M61 chip, the VDD2 pin of the ADUM3151A chip
It is connect with the Vdrive pin of the AD7766 chip, the VDD2 pin of the capacitor C89 and the ADUM3151A chip connects
It connects, the resistance R70 is connect with the SCLK pin of the ADUM3151A chip, the resistance R71 and the ADUM3151A core
The SO pin of piece connects, and the resistance R72 is connect with the nSSS pin of the ADUM3151A chip, the resistance R73 with it is described
The VOA pin of ADUM3151A chip connects, and the resistance R79 is connect with the VOB pin of the ADUM3151A chip, the electricity
Hold C95 to connect with the VDD1 pin of the ADUM3151A chip, the VIB of the resistance R48 and the ADUM3151A chip draw
Foot connection.The analog and digital signal isolation module prevents the noise of Back end data processing system to be transferred to electricity by conduction pattern
On terraced vibrating data collection circuit, the noise jamming of vibration of elevator data acquisition circuit is reduced.
There are two the first fixed plates 11 for 1 Right vertical of the bottom plate setting, and two the first fixed plates 11 are arranged side by side, institute
The lower vertical setting of bottom plate 1 is stated there are two the second fixed plate 12, and two the second fixed plates 12 are arranged side by side, first electricity
Road plate 3 is fixed in two the second fixed plates 12, and the second circuit board 4 is fixed in two the first fixed plates 11, and described
Three-circuit plate 5 is fixed on the surface of bottom plate 1, and tertiary circuit plate and first circuit board, second circuit board are mutually vertical.In this way
First circuit board, second circuit board, tertiary circuit plate can be more firmly placed in bottom plate 1 and shell.
Offer a route hole 21 on the shell 2, the first circuit board, second circuit board, on tertiary circuit plate
Route is pierced by after twisting into one from the route hole.
The acceleration information obtained to 3-axis acceleration sensor is filtered, to reduce extraneous interference signal
Interference, the filtering processing specifically: by 2000hz sample rate, the filter of 50hz trap first is carried out to the acceleration initial data of acquisition
Wave algorithm:
y50(k)=- A (1,2) * y50(k-1)-A(1,3)*y50(k-2)+B(1,1)*x(k)+B(1,2)*x(k-1)+B(1,
3) * x (k-2), wherein
X (k) is that the acceleration at k moment samples original value, y50It (k) is the acceleration information after 50hz notch filter；
A (i, j) representing matrix
A the i-th row j column data；B (i, j) representing matrix B the i-th row j column data；ω0For trapper trap frequency, 50hz, ω are takenfFor signal
Sample frequency, α are trapper coefficient, take 0.9；I.e.
100hz notch filter algorithm is carried out to the acceleration information after 50hz notch filter algorithm again:
y100(k)=- C (1,2) * y100(k-1)-C(1,3)*y100(k-2)+D(1,1)*y50(k)+D(1,2)*y50(k-1)
+D(1,3)*y50(k-2)
Wherein y100It (k) is the acceleration information after 100hz notch filter；
C (i, j) representing matrix
C the i-th row j column data；D (i, j) representing matrix D the i-th row j column data；ω1For trapper trap frequency, 100hz, ω are takenfFor letter
Number sample frequency, α are trapper coefficient, take 0.9；
Finally, 100hz notch filter post-acceleration data pass through second order Chebyshev's low pass that cutoff frequency is 120hz again
Filtering, and the acceleration information of second order Chebyshev's low-pass filtering is used for a time integral and obtains three axle speed data,
The acceleration information of second order Chebyshev's low-pass filtering obtains the location information of elevator for secondary time integral.It reduces so dry
Specific gravity of the signal in useful signal is disturbed, the accuracy of acceleration information is improved.
In short, being provided with power isolation module, power circuit modulus of conversion in vibration of elevator data acquisition circuit of the invention
External power supply and the power supply of equipment are carried out isolation by block, analog and digital signal isolation module, power isolation module, so as to
The signal-to-noise ratio of hoisting elevator vibrating data collection circuit, reduces the effect of noise, and analog and digital signal isolation module will be digital
Signal and analog signal both ends are completely isolated, improve the accuracy of vibration of elevator data acquisition circuit acquisition data in this way.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (10)
1. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor, the vibration of elevator data acquisition circuit
It is connect with Back end data processing system, it is characterised in that: the vibration of elevator data acquisition circuit includes power isolation module, electricity
Source circuit conversion module, 3-axis acceleration sensor, analog and digital signal isolation module and analog-to-digital conversion module, it is described
Power isolation module is isolated by external power supply, and power isolation module is connect with the power circuit conversion module, described
Supply voltage needed for 12V power supply is converted to 3-axis acceleration sensor by power circuit conversion module and analog-to-digital conversion module institute
The supply voltage needed, the 3-axis acceleration sensor convert the analog signal data of acquisition by the analog-to-digital conversion module
For digital signal data, the analog and digital signal isolation module is handled with the analog-to-digital conversion module and Back end data respectively
System connection, the analog and digital signal isolation module prevent the noise of Back end data processing system from transmitting by conduction pattern
Onto vibration of elevator data acquisition circuit, the noise jamming of vibration of elevator data acquisition circuit is reduced；The 3-axis acceleration
Sensor includes bottom plate and the shell that is placed on bottom plate, is fixedly installed a first circuit board, institute in the x-axis direction of the bottom plate
It states and is fixedly installed a second circuit board on the y-axis direction of bottom plate, third electricity is fixedly installed on the z-axis direction of the bottom plate
Road plate, the first circuit board, second circuit board, tertiary circuit plate form orthogonal structure two-by-two, the first circuit board,
Acceleration sensor module and the tune for adjusting sensing data precision are respectively mounted on second circuit board and tertiary circuit plate
Circuit is managed, the conditioning circuit is connect with the acceleration sensor module, the acceleration transducer on the first circuit board
Acceleration sensor module formation in acceleration sensor module, tertiary circuit plate in module, second circuit board is capable of measuring x
Axis, y-axis, three directions of z-axis acceleration signal.
2. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 1, special
Sign is: the power isolation module includes power module URB2412YMD-10WR3, capacitor C87, capacitor C88, electrolytic capacitor
CD17, capacitor C86, capacitor C85 and electrolytic capacitor CD16, the capacitor C87, capacitor C88, electrolytic capacitor CD17 are in parallel, institute
The one end for stating electrolytic capacitor CD17 is connect with internal electric source, and the other end of electrolytic capacitor CD17 is connect with analog signal ground wire GND,
The one end the capacitor C87 is connect with the VOUT pin of power module URB2412YMD-10WR3, the capacitor C87 other end and electricity
The VGND pin of source module URB2412YMD-10WR3 connects, and the capacitor C86, capacitor C85, electrolytic capacitor CD16 are in parallel, institute
The one end for stating electrolytic capacitor CD16 is connect with external power supply, and the other end and digital signal ground wire DGND of electrolytic capacitor CD16 connects
Connect, the one end the capacitor C85 is connect with the VIN pin of power module URB2412YMD-10WR3, the capacitor C85 other end with
The EARTH pin of power module URB2412YMD-10WR3 connects.
3. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 1, special
Sign is: the power circuit conversion module includes that 12V power supply turns 9V power circuit, 9V power supply turns 3.3V power circuit, 9V electricity
Source turns 2.5V power circuit and 9V power supply turns 5V power circuit, and the 12V power supply turns 9V power circuit and the isolated from power
Module connection, the 9V power supply turns 3.3V power circuit, 9V power supply turns 2.5V power circuit, 9V power supply turns 5V power circuit one end
Turn 9V power circuit with the 12V power supply to connect, the 9V power supply turns 3.3V power circuit, 9V power supply turns 2.5V power supply electricity
Road, 9V power supply turn the 5V power circuit other end and connect with the analog-to-digital conversion module, the 3-axis acceleration sensor and institute
It states 9V power supply and turns the connection of 3.3V power circuit.
4. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 3, special
Sign is: the 12V power supply turn 9V power circuit include LM317DCY chip, capacitor C8, chip inductor B2, electrolytic capacitor CD3,
Capacitor C9, resistance R14, capacitor C12, resistance R11, diode D3, resistance R9, electrolytic capacitor CD2, capacitor C6, capacitor C7 and
Resistance R953；One end is connected with the capacitor C8, chip inductor B2 after the electrolytic capacitor CD3, capacitor C9 are in parallel, the other end and
The VIN pin of LM317DCY chip connects；The capacitor C8 is connect with the internal electric source of the power isolation module, the resistance
One end is connect with the ADJ pin of LM317DCY chip after R14 is in parallel with capacitor C12, and the other end and analog signal ground wire GND connect
It connects；One end is connect with the OUT pin of LM317DCY chip after the resistance R11, diode D3 parallel connection, the other end and capacitor C12
Connection；One end is connect with the one end resistance R9 after the electrolytic capacitor CD2, capacitor C6, capacitor C7 and resistance R953 parallel connection, separately
One end is connect with analog signal ground wire GND；The resistance R9 other end is connect with the diode D3；
The 9V power supply turn 3.3V power circuit include: AZ1117H-3.3TRG1 chip, capacitor C17, capacitor C18, capacitor C19,
One end and the 12V power supply turn the capacitor of 9V power circuit after capacitor C20, resistance R51, the capacitor C17, capacitor C18 are in parallel
C7 connection, the other end are connect with the IN pin of the AZ1117H-3.3TRG1 chip, the AZ1117H-3.3TRG1 chip
VOUT pin and OUT pins in parallel, one end and AZ1117H-3.3TRG1 after the capacitor C19, capacitor C20, resistance R51 are in parallel
The VOUT pin of chip connects, and the other end is connect with analog signal ground wire GND；
It includes: AZ1117EHADJ chip, capacitor C26, capacitor C27, resistance R19, resistance that the 9V power supply, which turns 2.5V power circuit,
One end and the 12V power supply turn 9V electricity after R20, capacitor C22, capacitor C23, resistance R50, the capacitor C26, capacitor C27 are in parallel
The capacitor C7 connection of source circuit, the other end are connect with the VIN pin of AZ1117EHADJ chip；The resistance R19, resistance R20 string
Connection, the one end the resistance R20 are connect with the ADJ pin of the AZ1117EHADJ chip, the other end and the AZ1117EHADJ
The OUT pin of chip connects；One end and the AZ1117EHADJ chip after the capacitor C22, capacitor C23, resistance R50 are in parallel
The connection of OUT pin, the other end connect with analog signal ground wire GND；
It includes: ADR4533ARZ chip, capacitor C50, chip inductor B9, electrolytic capacitor that the 9V power supply, which turns 5V power circuit,
CD13, capacitor C51, resistance R34, electrolytic capacitor CD14, capacitor C52, capacitor C53, the electrolytic capacitor CD13, capacitor C51 are simultaneously
One end is connected with the capacitor C50, chip inductor B9 after connection, and the other end is connect with the Vin pin of ADR4533ARZ chip；It is described
One end is connect with resistance R34 after electrolytic capacitor CD14, capacitor C52, capacitor C53 parallel connection, and the other end and analog signal ground wire GND connect
It connects, the resistance R34 is connect with the VOUT pin of the ADR4533ARZ chip.
5. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 4, special
Sign is: the acceleration sensor module includes J39 socket and sensor, and the sensor is connect with the J39 socket, institute
Stating sensor includes E6308 chip, capacitor C3, capacitor C4, capacitor C10, resistance R6, resistance R7, the capacitor C4 and capacitor C10
In parallel with the capacitor C3 after series connection, the capacitor C3 is connect with the capacitor C20 of the AZ1117H-3.3TRG1 chip, described
5th pin of J39 socket is connect with the ST pin of the E6308 chip, the one end the capacitor C4 and the E6308 chip
The connection of VDD pin, the other end are connect with the VMID pin of the E6308 chip；The resistance R6 and the E6308 chip
The connection of OUTN pin, the resistance R7 are connect with the OUTP pin of the E6308 chip.
6. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 5, special
Sign is: the conditioning circuit for adjusting sensing data precision includes ADA4528-2TCPZ chip, capacitor C11, described
The one end capacitor C11 is connect with the V+ pin of ADA4528-2TCPZ chip, and the other end turns the electricity of 5V power circuit with the 9V power supply
Hold C53 connection, the OUTA pin and-INA pins in parallel of the ADA4528-2TCPZ chip, the ADA4528-2TCPZ chip
+ INA pin connect with the OUTP pin of the E6308 chip by the resistance R7, the ADA4528-2TCPZ chip
+ INB pin is connect by the resistance R76 with the OUTN pin of the E6308 chip.
7. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 5, special
Sign is: the analog-to-digital conversion module includes AD7766 chip, resistance R41, resistance R45, capacitor C71, capacitor C80, capacitor
C57, capacitor C72, capacitor C73, the capacitor C7 that the 1st pin and the 12V power supply of the J39 socket turn 9V power circuit connect
It connects, the 2nd pin of the J39 socket is connect by the resistance R41 with the VIN+ pin of the AD7766 chip, the J39
3rd pin of socket is connect by the resistance R45 with the VIN- pin of the AD7766 chip, and the 4th of the J39 socket is drawn
Foot is connect with analog signal ground wire GND, and the VRef+ pin of the AD7766 chip turns with capacitor C71 and the 9V power supply respectively
The AVdd of one end and the AD7766 chip after the capacitor C53 connection of 5V power circuit, the capacitor C80 and capacitor C57 parallel connection
Pin connection, the other end are connect with analog signal ground wire GND；The AVdd pin of the AD7766 chip and the 9V power supply turn
The capacitor C23 connection of 2.5V power circuit, the DVdd pin of the AD7766 chip turn 2.5V power supply with the 9V power supply respectively
The capacitor C23 of circuit is connected with capacitor C72, and the Vdrive pin of the AD7766 chip turns 3.3V electricity with the 9V power supply respectively
The capacitor C20 of source circuit is connected with capacitor C73.
8. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 7, special
Sign is: the analog and digital signal isolation module includes ADUM3151A chip, ACPL_M61 chip, capacitor C89, resistance
R70, resistance R71, resistance R72, resistance R73, resistance R79, capacitor C95, resistance R48, resistance R74, resistance R77, resistance R78 with
And capacitor C96, the VDD pin of the ACPL_M61 chip are connect with the VDD1 pin of the ADUM3151A chip, the resistance
R74 is connect with the Anode pin of the ACPL_M61 chip, and the Cathode of the resistance R77 and the ACPL_M61 chip draw
Foot connection, the resistance R78 are connect with the VO pin of the ACPL_M61 chip, the VDD2 pin of the ADUM3151A chip
It is connect with the Vdrive pin of the AD7766 chip, the VDD2 pin of the capacitor C89 and the ADUM3151A chip connects
It connects, the resistance R70 is connect with the SCLK pin of the ADUM3151A chip, the resistance R71 and the ADUM3151A core
The SO pin of piece connects, and the resistance R72 is connect with the nSSS pin of the ADUM3151A chip, the resistance R73 with it is described
The VOA pin of ADUM3151A chip connects, and the resistance R79 is connect with the VOB pin of the ADUM3151A chip, the electricity
Hold C95 to connect with the VDD1 pin of the ADUM3151A chip, the VIB of the resistance R48 and the ADUM3151A chip draw
Foot connection.
9. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 1, special
Sign is: there are two the first fixed plates for the bottom plate Right vertical setting, and two the first fixed plates are arranged side by side, the bottom plate
Lower vertical setting there are two the second fixed plate, and two the second fixed plates are arranged side by side, and the first circuit board is fixed on
In two the second fixed plates, the second circuit board is fixed in two the first fixed plates, and the tertiary circuit plate is fixed on bottom
The surface of plate, and tertiary circuit plate and first circuit board, second circuit board are mutually vertical.
10. a kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor according to claim 1, special
Sign is: the acceleration information obtained to 3-axis acceleration sensor is filtered, to reduce extraneous interference signal
Interference, the filtering processing specifically: by 2000hz sample rate, the filter of 50hz trap first is carried out to the acceleration initial data of acquisition
Wave algorithm:
y50(k)=- A (1,2) * y50(k-1)-A(1,3)*y50(k-2)+B(1,1)*x(k)+B(1,2)*x(k-1)+B(1,3)*x
(k-2), wherein
X (k) is that the acceleration at k moment samples original value, y50It (k) is the acceleration information after 50hz notch filter；
A (i, j) representing matrix A i-th
Row j column data；B (i, j) representing matrix B the i-th row j column data；ω0For trapper trap frequency, 50hz, ω are takenfFor signal sampling
Frequency, α are trapper coefficient, take 0.9；
100hz notch filter algorithm is carried out to the acceleration information after 50hz notch filter algorithm again:
y100(k)=- C (1,2) * y100(k-1)-C(1,3)*y100(k-2)+D(1,1)*y50(k)+D(1,2)*y50(k-1)+D(1,
3)*y50(k-2) wherein y100It (k) is the acceleration information after 100hz notch filter；
C (i, j) representing matrix C i-th
Row j column data；D (i, j) representing matrix D the i-th row j column data；ω1For trapper trap frequency, 100hz, ω are takenfIt is adopted for signal
Sample frequency, α are trapper coefficient, take 0.9；
Finally, 100hz notch filter post-acceleration data pass through second order Chebyshev's low pass filtered that cutoff frequency is 120hz again
Wave, and the 3-axis acceleration data of second order Chebyshev's low-pass filtering are used for a time integral and obtain three axle speed degrees
According to the 3-axis acceleration data of second order Chebyshev's low-pass filtering obtain the location information of elevator for secondary time integral.
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| CN105480804A (en) * | 2016-02-02 | 2016-04-13 | 浙江省联合特种设备研究院 | Elevator safety performance testing and analyzing method and device |
| CN206514942U (en) * | 2016-08-30 | 2017-09-22 | 广东省特种设备检测研究院珠海检测院 | A kind of vibration of elevator acceleration wireless measuring system |
| CN208902258U (en) * | 2018-11-07 | 2019-05-24 | 福州鑫奥特纳科技有限公司 | A kind of vibration of elevator data acquisition circuit with 3-axis acceleration sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572227A (en) * | 1991-09-12 | 1993-03-23 | Sumitomo Electric Ind Ltd | Acceleration detector |
| WO2001051890A1 (en) * | 2000-01-12 | 2001-07-19 | American Gnc Corporation | Micro inertial measurement unit |
| CN101419442A (en) * | 2008-12-08 | 2009-04-29 | 浙江大学 | Portable elevator dynamic characteristic data acquisition unit based on USB interface |
| CN203212149U (en) * | 2013-03-27 | 2013-09-25 | 杭州市特种设备检测院 | Online monitoring alarm device for elevator car vibration |
| CN203908666U (en) * | 2014-06-13 | 2014-10-29 | 西安交通大学 | Breaker/GIS vibration signal acquisition assembly |
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