CN207113891U - Suitable for the time-sharing multiplex integrated circuit of single-sheet miniature location navigation time dissemination system - Google Patents
Suitable for the time-sharing multiplex integrated circuit of single-sheet miniature location navigation time dissemination system Download PDFInfo
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- CN207113891U CN207113891U CN201720829090.4U CN201720829090U CN207113891U CN 207113891 U CN207113891 U CN 207113891U CN 201720829090 U CN201720829090 U CN 201720829090U CN 207113891 U CN207113891 U CN 207113891U
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Abstract
The utility model provides the time-sharing multiplex integrated circuit suitable for single-sheet miniature location navigation time dissemination system, belong to positioning and navigation field, including the micro-electro-mechanical gyroscope of at least three axial directions, Micro-electro-mechanaccelerometer accelerometer, micro- clock and the multipath high-speed switch module of three axial directions.By multipath high-speed switch module according to receive information resolve control circuit caused by SCS signals, then out-of-alignment micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer are switched at a high speed, so that out-of-alignment micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer are docked with observing and controlling integrated circuit below, so that a set of micro-electro-mechanical gyroscope observing and controlling integrated circuit is being the micro-electro-mechanical gyroscope service of three axial directions at different moments, simultaneously, so that a set of Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit is being the Micro-electro-mechanaccelerometer accelerometer service of three axial directions at different moments, so as to the not only small volume in the case where not influenceing its detection, it is low in energy consumption, also reduce cost, improve the integrated level of whole system.
Description
Technical field
The utility model belongs to positioning and navigation field, more particularly to point suitable for single-sheet miniature location navigation time dissemination system
Shi Fuyong integrated circuits.
Background technology
Miniature location navigation time service (Micro Positioning, Navigation and Timing, Micro-PNT) system
System is proposed that it is studied original intention and temporarily failed in global position system or in short-term by DARPA (U.S. national defense advanced research projects agency)
In can not work in the case of, reach short time navigation and fixed in high precision by using micro- inertial navigation system and the micro- clock of high accuracy
The purpose of position.
Typical Micro-PNT systems comprise at least the micro-electro-mechanical gyroscope of three axial directions, the micro electronmechanical acceleration of three axial directions
Meter and the micro- clock of high accuracy, and micro-electro-mechanical gyroscope, accelerometer and the devices such as the micro- clock of high accuracy need to coordinate it is mutually powered-down
Road ability normal work, so should also contain corresponding circuit control and resolving system in Micro-PNT systems.Therefore Micro-
The problem of integrated level difference be present in PNT systems.
Utility model content
In order to solve shortcoming and defect present in prior art, the utility model is provided using multipath high-speed switching molding
Block carries out Time-sharing control, so as to simplied system structure to the signal transmission line of micro-electro-mechanical gyroscope, Micro-electro-mechanaccelerometer accelerometer
Suitable for the time-sharing multiplex integrated circuit of single-sheet miniature location navigation time dissemination system.
In order to reach above-mentioned technical purpose, the utility model is provided suitable for single-sheet miniature location navigation time dissemination system
Time-sharing multiplex integrated circuit, including the micro-electro-mechanical gyroscope of at least three axial directions, the Micro-electro-mechanaccelerometer accelerometer of three axial directions and micro- clock,
The micro-electro-mechanical gyroscope observing and controlling that the micro-electro-mechanical gyroscope of three axial direction is connected with three axial directions through multipath high-speed switch module integrates
Circuit, the output end link information of the micro-electro-mechanical gyroscope observing and controlling integrated circuit of three axial direction resolve control circuit；
The Micro-electro-mechanaccelerometer accelerometer of three axial direction is connected with the micro electronmechanical of three axial directions through the multipath high-speed switch module
Accelerometer observing and controlling integrated circuit, the output end of the Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit of three axial direction connect the letter
Breath resolves control circuit；
Micro- clock is connected with micro- clock conditioning integrated circuit, the output end connection of micro- clock conditioning integrated circuit
Described information resolves control circuit.
Optionally, the multipath high-speed switch module includes：
Multipath high-speed switch control module, it is connected with the multipath high-speed switch control module by the multipath high-speed
Switch control module control gyro driven-mode amplitude detection channel switch, gyroscope amplitude detection channel switch,
Accelerometer operation mode amplitude detection channel switch, gyro driving force control passage switch, gyroscope quadrature Corrective control passage
Switch, gyro detection force-feedback control channel switch, gyro mode tuning control passage switch, the control of accelerometer driving force are logical
Road switch, accelerometer detection force-feedback control channel switch.
Optionally, the micro-electro-mechanical gyroscopes of three axial direction include at least three be respectively used to detection carrier coordinate system X, Y,
The micro-electro-mechanical gyroscope of the rotational angular velocity information in tri- directions of Z, axis is in spatial dimension residing for each micro-electro-mechanical gyroscope
Pairwise orthogonal.
Optionally, the Micro-electro-mechanaccelerometer accelerometers of three axial direction include at least three be respectively used to detection carrier coordinate system X,
Y, the Micro-electro-mechanaccelerometer accelerometer of the linear acceleration information in tri- directions of Z, axis is in space model residing for each Micro-electro-mechanaccelerometer accelerometer
Enclose interior pairwise orthogonal.
Optionally, when the micro-electro-mechanical gyroscope of described three axial directions is in normal operating conditions, the microcomputer of three axial direction
Electric top instrument observing and controlling integrated circuit includes driving circuit and measure loop；
Wherein, the driving circuit carries including the first detection interface, the first amplifier, PLL phase-locked loop circuits, signal amplitude
Sense circuit, drive control device, the first modulator, the first direct current and exchange supercircuit；
The measure loop includes the second detection interface, the second amplifier, phase-sensitive demodulator, the first low pass filter.
Optionally, when the measure loop be in quadrature alignment and detection closed-loop working state when, it is described three axial direction it is micro-
Electromechanical gyroscopes observing and controlling integrated circuit also includes detection controller, the second low pass filter, the second modulator, the second direct current and friendship
Flow supercircuit.
Optionally, when the Micro-electro-mechanaccelerometer accelerometers of described three axial directions be in resonant operational state, described three is axial micro-
Dynamoelectric acceleration gauge observing and controlling integrated circuit includes driving circuit and frequency measurement circuit.
Optionally, when the Micro-electro-mechanaccelerometer accelerometers of described three axial directions be in pendulum-type working method, described three is axial micro-
Dynamoelectric acceleration gauge observing and controlling integrated circuit includes the 3rd amplifier, the 3rd low pass filter.
Optionally, micro- clock conditioning integrated circuit includes micro- clock physical system interface circuit, frequency divider, phase demodulation
Device, the 4th low pass filter, voltage controlled oscillator.
Optionally, described information, which resolves control circuit, includes Kalman filtering circuit, integrating circuit, inertial navigation calculating electricity
Road.
The beneficial effect that technical scheme provided by the utility model is brought is：By multipath high-speed switch module according to reception
SCS signals caused by control circuit are resolved to information, then switching out-of-alignment micro-electro-mechanical gyroscope and micro electronmechanical acceleration at a high speed
Degree meter so that out-of-alignment micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer are docked with observing and controlling integrated circuit below, so that
It is being the micro-electro-mechanical gyroscope services of three axial directions at different moments to obtain a set of micro-electro-mechanical gyroscope observing and controlling integrated circuit, simultaneously so that
A set of Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit is being the Micro-electro-mechanaccelerometer accelerometer service of three axial directions at different moments, so as to not
Not only small volume, low in energy consumption is influenceed in the case of its detection, cost is also reduced, improves the integrated level of whole system.
Brief description of the drawings
It is required in being described below to embodiment to use in order to illustrate more clearly of the technical solution of the utility model
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the time-sharing multiplex integrated circuit described in the utility model suitable for single-sheet miniature location navigation time dissemination system
Structural representation；
Fig. 2 is the structural representation of multipath high-speed switch module described in the utility model；
Fig. 3 is the structural representation of the micro-electro-mechanical gyroscope observing and controlling integrated circuit of three axial direction described in the utility model；
Fig. 4 is the structural representation of the Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit of three axial direction described in the utility model；
Fig. 5 is the structural representation that information described in the utility model resolves control circuit.
Embodiment
To make structure and advantage of the present utility model clearer, structure of the present utility model is made below in conjunction with accompanying drawing
It is further described through.
Embodiment one
The utility model provides the time-sharing multiplex integrated circuit suitable for single-sheet miniature location navigation time dissemination system, including
The micro-electro-mechanical gyroscope of at least three axial directions, the Micro-electro-mechanaccelerometer accelerometer of three axial directions and micro- clock, the micro electronmechanical top of three axial direction
Spiral shell instrument through multipath high-speed switch module 1 be connected with three axial direction micro-electro-mechanical gyroscope observing and controlling integrated circuits 2, it is described three axial direction it is micro-
The output end link information of electromechanical gyroscopes observing and controlling integrated circuit 2 resolves control circuit 5；
The Micro-electro-mechanaccelerometer accelerometer of three axial direction is connected with the micro electronmechanical of three axial directions through the multipath high-speed switch module 1
Accelerometer observing and controlling integrated circuit 3, it is described three axial direction Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuits 3 output end connection described in
Information resolves control circuit 5；
Micro- clock is connected with micro- clock conditioning integrated circuit 4, and the output end of micro- clock conditioning integrated circuit 4 connects
Connect described information and resolve control circuit 5.
In force, suitable for the time-sharing multiplex integrated circuit of single-sheet miniature location navigation time dissemination system, including at least three
The micro-electro-mechanical gyroscope of axial direction, Micro-electro-mechanaccelerometer accelerometer, micro- clock and the multipath high-speed switch module 1 of three axial directions, such as Fig. 1 institutes
Show, by multipath high-speed switch module 1 according to receive information resolve control circuit 5 caused by SCS (Sequence Control
System sequence control systems) signal, then switch out-of-alignment micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer at a high speed so that
Out-of-alignment micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer respectively with out-of-alignment micro-electro-mechanical gyroscope observing and controlling integrated circuit and
Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit docks, so that a set of micro-electro-mechanical gyroscope observing and controlling integrated circuit is at different moments
For the micro-electro-mechanical gyroscope service of three axial directions.
Simultaneously so that a set of Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit is being the micro electronmechanical acceleration of three axial directions at different moments
Degree meter service, also micro- clock conditioning moment of integrated circuit 4 is micro- clock service.Integrated by former micro-electro-mechanical gyroscope observing and controlling
Circuit and Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit each three sets turn to it is each a set of, so as to not influence the situation of its detection
Under not only small volume, low in energy consumption, also reduce cost.
Split-second precision information transfer to micro- clock will be obtained by micro- clock and nurse one's health integrated circuit 4, and micro- clock is defeated
Go out signal to transmit to information resolving control circuit 5；Turned by any axial micro-electro-mechanical gyroscope by carrier is obtained in space
Dynamic angular velocity information is transmitted to the micro-electro-mechanical gyroscope observing and controlling integrated circuit of corresponding axial direction, and gyro output signals are transmitted to letter
Breath resolves control circuit 5；Any axial Micro-electro-mechanaccelerometer accelerometer by obtain carrier space linear acceleration information transfer extremely
The Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit of corresponding axial direction, and accelerometer output signal is transmitted to information and resolves control electricity
Road 5, further, control electricity is resolved by information using the rotational angular velocity information of split-second precision information and carrier in space
Try to achieve the space angle information of carrier, pass through letter using the linear acceleration information of split-second precision information and carrier in space in road 5
Breath resolves the space displacement information that control circuit 5 tries to achieve carrier, finally according to the space angle information of carrier, the space bit of carrier
The positional information that information obtains carrier by the algorithm of correlation, and then the purpose for positioning and navigating are moved, and is improved whole
The integrated level of individual system.
Optionally, the multipath high-speed switch module 1 includes：
Multipath high-speed switch module 10, it is connected with the multipath high-speed switch module 10 and is switched by the multipath high-speed
Gyro driven-mode amplitude detection channel switch 11, gyroscope amplitude detection channel switch 12, the top of the control of module 10
Spiral shell driving force control passage switch 13, gyroscope quadrature Corrective control channel switch 14, gyro detection force-feedback control channel switch
15th, gyro mode tuning control passage switch 16, accelerometer operation mode amplitude detection channel switch 17, accelerometer driving
Power control passage switch 18, accelerometer detection force-feedback control channel switch 19.
In force, as shown in Fig. 2 the multipath high-speed switch module 1 includes multipath high-speed switch module 10, gyro drives
Dynamic model state amplitude detection channel switch 11, gyroscope amplitude detection channel switch 12, accelerometer operation mode amplitude
Sense channel switch 17, gyro driving force control passage switch 13, gyroscope quadrature Corrective control channel switch 14, gyro detection power
Feedback control channel switch 15 etc., wherein, multipath high-speed switch module 10 is used for receive information and resolved caused by control circuit 5
SCS signals, rest switch contribute to send control signal to the micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer of three axial directions.
At a time in multipath high-speed switch module 1, multipath high-speed switch module 1 receives information and resolves control circuit 5
After caused SCS signals, and control signal is sent to any axial micro-electro-mechanical gyroscope and microcomputer motor speedometer so that appoint
All detections of micro-electro-mechanical gyroscope of one axial direction and controlling switch are connected to corresponding axial micro-electro-mechanical gyroscope observing and controlling collection
Into on circuit, other input/output signals are hanging, so as to which the axial micro-electro-mechanical gyroscope can be with normal work, the now axial direction
Micro-electro-mechanical gyroscope observing and controlling IC output signal be the axial micro-electro-mechanical gyroscope detection signal.
Meanwhile detections all with the homoaxial Micro-electro-mechanaccelerometer accelerometer of micro-electro-mechanical gyroscope and controlling switch are connected to phase
On the Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit of corresponding axial direction, other input/output signals are hanging, so as to the axial microcomputer
Electric accelerometer can be with normal work, and now the axial Micro-electro-mechanaccelerometer accelerometer observing and controlling IC output signal is the axial direction
Micro-electro-mechanaccelerometer accelerometer detection signal.
Optionally, the micro-electro-mechanical gyroscopes of three axial direction include at least three be respectively used to detection carrier coordinate system X, Y,
The micro-electro-mechanical gyroscope of the rotational angular velocity information in tri- directions of Z, axis is in spatial dimension residing for each micro-electro-mechanical gyroscope
Pairwise orthogonal.
In force, it is micro- to include at least three respectively X-axis micro-electro-mechanical gyroscope, Y-axis for the micro-electro-mechanical gyroscope of three axial directions
Electromechanical gyroscopes, Z axis micro-electro-mechanical gyroscope, axis pairwise orthogonal in spatial dimension residing for each micro-electro-mechanical gyroscope, with X-axis
Exemplified by micro-electro-mechanical gyroscope, rotational angular velocity information of the carrier in space is obtained by X-axis micro-electro-mechanical gyroscope, and it is micro- through X-axis
Electromechanical gyroscopes observing and controlling integrated circuit transmits it to information and resolved in control circuit 5.
Optionally, the Micro-electro-mechanaccelerometer accelerometers of three axial direction include at least three be respectively used to detection carrier coordinate system X,
Y, the Micro-electro-mechanaccelerometer accelerometer of the linear acceleration information in tri- directions of Z, axis is in space model residing for each Micro-electro-mechanaccelerometer accelerometer
Enclose interior pairwise orthogonal.
In force, it is respectively X-axis Micro-electro-mechanaccelerometer accelerometer, Y that the Micro-electro-mechanaccelerometer accelerometer of three axial directions, which includes at least three,
Axis microelectromechanicdevice accelerometer, Z axis Micro-electro-mechanaccelerometer accelerometer, axis residing for each Micro-electro-mechanaccelerometer accelerometer in spatial dimension two-by-two
It is orthogonal, by taking X-axis Micro-electro-mechanaccelerometer accelerometer as an example, linear acceleration of the carrier in space is obtained by X-axis Micro-electro-mechanaccelerometer accelerometer and believed
Breath, and transmit it to information through X-axis Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit and resolve in control circuit 5.
Optionally, when the micro-electro-mechanical gyroscope of described three axial directions is in normal operating conditions, the microcomputer of three axial direction
Electric top instrument observing and controlling integrated circuit 2 includes driving circuit and measure loop；
Wherein, the driving circuit carries including the first detection interface, the first amplifier, PLL phase-locked loop circuits, signal amplitude
Sense circuit, drive control device, the first modulator, the first direct current and exchange supercircuit；
The measure loop includes the second detection interface, the second amplifier, phase-sensitive demodulator, the first low pass filter.
In force, when the micro-electro-mechanical gyroscope of three axial directions is in normal operating conditions, the micro-electro-mechanical gyroscope of three axial directions
Observing and controlling integrated circuit 2 includes driving circuit and measure loop.With reference to Fig. 2 and Fig. 3, gyro driven-mode amplitude detection channel switch
11 gyro driven-mode amplitude detection output end, the gyroscope width of gyroscope amplitude detection channel switch 12
It is worth detection output, the gyro driving force control signal of gyro driving force control passage switch 13, gyroscope quadrature Corrective control
The gyroscope quadrature Corrective control input of channel switch 14, the gyro detection power of gyro detection force-feedback control channel switch 15 are anti-
Feedback control signal and the gyro mode tuning control signal of gyro mode tuning control passage switch 16 are connected with three axles
To micro-electro-mechanical gyroscope observing and controlling integrated circuit 2.
In the present embodiment by taking X-axis micro-electro-mechanical gyroscope as an example, when driven-mode amplitude detection is defeated in X-axis micro-electro-mechanical gyroscope
Go out signal to transmit to X-axis micro-electro-mechanical gyroscope observing and controlling integrated circuit through gyro driven-mode amplitude detection channel switch 11, pass through
After driving circuit processing, driving force control signal is transmitted to X-axis micro-electro-mechanical gyroscope through gyro driving force control passage switch 13
Drive part, so that X-axis micro-electro-mechanical gyroscope drive part is in the resonant condition of permanent width.
Wherein, driving circuit includes the first detection interface, the first amplifier, PLL phase-locked loop circuits, signal amplitude extraction electricity
Road, drive control device, the first modulator, the first direct current and exchange supercircuit.
Meanwhile in X-axis micro-electro-mechanical gyroscope sensed-mode amplitude detection output signal through gyroscope amplitude detection
Channel switch 12 is transmitted to X-axis micro-electro-mechanical gyroscope observing and controlling integrated circuit, is output it by measure loop.
Wherein, measure loop includes the second detection interface, the second amplifier, phase-sensitive demodulator, the first low pass filter.
In addition, Y-axis micro-electro-mechanical gyroscope, Z axis micro-electro-mechanical gyroscope are identical with above-mentioned X-axis micro-electro-mechanical gyroscope principle,
Here is omitted.
Optionally, when the measure loop be in quadrature alignment and detection closed-loop working state when, it is described three axial direction it is micro-
Electromechanical gyroscopes observing and controlling integrated circuit 2 also include detection controller, the second low pass filter, the second modulator, the second direct current and
Exchange supercircuit.
In force, continue and be described above, when measure loop is in quadrature alignment and detection closed-loop working state, X-axis is micro-
Electromechanical gyroscopes observing and controlling integrated circuit also includes detection controller, the second low pass filter, the second modulator, the second direct current and friendship
Flow supercircuit.Quadrature alignment feedback control signal, detection force-feedback control letter in X-axis micro-electro-mechanical gyroscope observing and controlling integrated circuit
Number and mode tuning control signal respectively through gyroscope quadrature Corrective control channel switch 14, gyro detect force-feedback control passage
Switch 15 and gyro mode tuning control passage switch 16 are transmitted into X-axis micro-electro-mechanical gyroscope.
Optionally, when the Micro-electro-mechanaccelerometer accelerometers of described three axial directions be in resonant operational state, described three is axial micro-
Dynamoelectric acceleration gauge observing and controlling integrated circuit 3 includes driving circuit and frequency measurement circuit.
In force, when the Micro-electro-mechanaccelerometer accelerometer of three axial directions is in resonant operational state, the micro electronmechanical of three axial directions adds
Speedometer observing and controlling integrated circuit 3 includes driving circuit and frequency measurement circuit.With reference to Fig. 2 and Fig. 4, the inspection of accelerometer operation mode amplitude
Survey channel switch 17 accelerometer operation mode amplitude detection output end, accelerometer driving force control passage switch 18 plus
Speedometer driving force control signal and the accelerometer detection power of accelerometer detection force-feedback control channel switch 19 are anti-
Feedback control signal is connected with the Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit 3 of three axial directions.
The present embodiment is by taking X-axis Micro-electro-mechanaccelerometer accelerometer as an example, the output of X-axis Micro-electro-mechanaccelerometer accelerometer operation mode amplitude detection
The accelerated degree meter operation mode amplitude detection channel switch 17 of signal is transmitted to X-axis Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit,
Then after driving circuit is handled, the accelerated degree meter driving force control passage switch 18 of driving force control signal is transmitted to X-axis
Micro-electro-mechanaccelerometer accelerometer drive part, so that X-axis Micro-electro-mechanaccelerometer accelerometer drive part is in the resonant condition of permanent width.
Wherein, driving circuit has explained above, and here is omitted.
Meanwhile frequency measurement circuit can be stablized, accurately measure the resonance of X-axis Micro-electro-mechanaccelerometer accelerometer driven-mode frequently
Rate, the resonant frequency is relevant with acceleration magnitude suffered by X-axis Micro-electro-mechanaccelerometer accelerometer, and the frequency values are as the micro electronmechanical acceleration of X-axis
Count output valve.
In addition, Y-axis Micro-electro-mechanaccelerometer accelerometer, Z axis Micro-electro-mechanaccelerometer accelerometer are identical with X-axis Micro-electro-mechanaccelerometer accelerometer structure,
Here is omitted.
Optionally, when the Micro-electro-mechanaccelerometer accelerometers of described three axial directions be in pendulum-type working method, described three is axial micro-
Dynamoelectric acceleration gauge observing and controlling integrated circuit 3 includes the 3rd amplifier, the 3rd low pass filter.
In force, by taking X-axis Micro-electro-mechanaccelerometer accelerometer as an example, when X-axis Micro-electro-mechanaccelerometer accelerometer is in pendulum-type working method
When, the accelerated degree meter operation mode amplitude detection channel switch 17 of X-axis Micro-electro-mechanaccelerometer accelerometer operation mode amplitude detection signal
Transmit to X-axis Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit, and it is defeated to be passed sequentially through the 3rd amplifier, the 3rd low pass filter
Go out.When X-axis Micro-electro-mechanaccelerometer accelerometer is in closed loop, the accelerated degree meter detection force feedback control of detection force-feedback control signal
Channel switch 19 processed is transmitted into X-axis Micro-electro-mechanaccelerometer accelerometer.
Herein, Y-axis Micro-electro-mechanaccelerometer accelerometer, Z axis Micro-electro-mechanaccelerometer accelerometer are identical with X-axis Micro-electro-mechanaccelerometer accelerometer structure,
Here is omitted.
Optionally, micro- clock conditioning integrated circuit 4 includes micro- clock physical system interface circuit, frequency divider, phase demodulation
Device, the 4th low pass filter, voltage controlled oscillator.
In force, as shown in figure 1, micro- clock, which will get split-second precision information transfer to micro- clock, nurses one's health integrated electricity
Road 4, successively by micro- clock physical system interface circuit, frequency divider, phase discriminator, the 4th low pass filter, voltage controlled oscillator simultaneously
Output it.In addition, micro- clock conditioning integrated circuit 4 can also use sigma-delta modulator, but when the substitution of chip atomic clock is micro-
Clock, the frequency of chip atomic clock is locked by sigma-delta modulator, and is output it.
Optionally, described information, which resolves control circuit 5, includes Kalman filtering circuit, integrating circuit, inertial navigation calculating
Circuit.
In force, as shown in figure 5, information resolves gyro output signals, accelerometer that control circuit 5 obtains timesharing
Output signal and micro- clock output signal are nursed one's health and resolved, and pass through Kalman filtering circuit, integrating circuit, inertial navigation
Counting circuit final output signal, the signal meet the relevant information of user's request, so obtain the positional information of carrier with up to
To the purpose of positioning and navigation.
It is pointed out that meet that the relevant information of user's request refers to that three-shaft displacement, three axle speeds, three axles accelerate
Degree, three axis angular rates, three shaft angle degree, split-second precision etc., in addition, output signal be not only limited to it is above-mentioned several.Meanwhile believe
Breath resolves control circuit 5 and produces SCS signals, determines the time to the sampling of each device and duration, uses during to resolve.
The utility model provides the time-sharing multiplex integrated circuit suitable for single-sheet miniature location navigation time dissemination system, including
The micro-electro-mechanical gyroscope of at least three axial directions, Micro-electro-mechanaccelerometer accelerometer, micro- clock and the multipath high-speed switch module of three axial directions.It is logical
Multichannel high speed switch module SCS signals according to caused by receiving information resolving control circuit are crossed, then switching is not coaxial at a high speed
Micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer so that out-of-alignment micro-electro-mechanical gyroscope and Micro-electro-mechanaccelerometer accelerometer with below
Observing and controlling integrated circuit docking so that a set of micro-electro-mechanical gyroscope observing and controlling integrated circuit at different moments be three axial direction it is micro-
Electromechanical gyroscopes service, simultaneously so that a set of Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit is being the micro- of three axial directions at different moments
Dynamoelectric acceleration gauge service, so as to the not only small volume, low in energy consumption in the case where not influenceing its detection, cost is also reduced, is carried
The high integrated level of whole system.
Each sequence number in above-described embodiment is for illustration only, does not represent the elder generation during the assembling or use of each part
Order afterwards.
Embodiment of the present utility model is the foregoing is only, it is all in the utility model not to limit the utility model
Spirit and principle within, any modification, equivalent substitution and improvements made etc., should be included in protection model of the present utility model
Within enclosing.
Claims (10)
1. suitable for single-sheet miniature location navigation time dissemination system time-sharing multiplex integrated circuit, including at least three axial direction it is micro electronmechanical
Gyroscope, the Micro-electro-mechanaccelerometer accelerometer of three axial directions and micro- clock, it is characterised in that
The micro-electro-mechanical gyroscope of three axial direction is connected with the micro-electro-mechanical gyroscope observing and controlling of three axial directions through multipath high-speed switch module
Integrated circuit, the output end link information of the micro-electro-mechanical gyroscope observing and controlling integrated circuit of three axial direction resolve control circuit；
The Micro-electro-mechanaccelerometer accelerometer of three axial direction is connected with the micro electronmechanical acceleration of three axial directions through the multipath high-speed switch module
Degree measurement control integrated circuit, the output end connection described information solution of the Micro-electro-mechanaccelerometer accelerometer observing and controlling integrated circuit of three axial direction
Calculate control circuit；
Micro- clock is connected with micro- clock conditioning integrated circuit, and micro- clock is nursed one's health described in the output end connection of integrated circuit
Information resolves control circuit.
2. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by, the multipath high-speed switch module includes：
Multipath high-speed switch control module, it is connected with the multipath high-speed switch control module and is switched by the multipath high-speed
The gyro driven-mode amplitude detection channel switch of control module control, gyroscope amplitude detection channel switch, acceleration
Degree meter operation mode amplitude detection channel switch, gyro driving force control passage switch, gyroscope quadrature Corrective control channel switch,
Gyro detection force-feedback control channel switch, gyro mode tuning control passage switch, accelerometer driving force control passage are opened
Close, accelerometer detection force-feedback control channel switch.
3. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by, the micro-electro-mechanical gyroscope of three axial direction is respectively used to detect carrier coordinate system X, Y, Z tri- including at least three
The micro-electro-mechanical gyroscope of the rotational angular velocity information in direction, axis residing for each micro-electro-mechanical gyroscope in spatial dimension two-by-two just
Hand over.
4. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by, the Micro-electro-mechanaccelerometer accelerometer of three axial direction is respectively used to detect carrier coordinate system X, Y, Z tri- including at least three
The Micro-electro-mechanaccelerometer accelerometer of the linear acceleration information in individual direction, axis is two in spatial dimension residing for each Micro-electro-mechanaccelerometer accelerometer
Two is orthogonal.
5. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by,
When the micro-electro-mechanical gyroscope of described three axial directions is in normal operating conditions, the micro-electro-mechanical gyroscope observing and controlling of three axial direction
Integrated circuit includes driving circuit and measure loop；
Wherein, the driving circuit includes the first detection interface, the first amplifier, PLL phase-locked loop circuits, signal amplitude extraction electricity
Road, drive control device, the first modulator, the first direct current and exchange supercircuit；
The measure loop includes the second detection interface, the second amplifier, phase-sensitive demodulator, the first low pass filter.
6. the time-sharing multiplex integrated circuit according to claim 5 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by,
When the measure loop is in quadrature alignment and detection closed-loop working state, the micro-electro-mechanical gyroscope of three axial direction is surveyed
Control integrated circuit also includes detection controller, the second low pass filter, the second modulator, the second direct current and exchanges supercircuit.
7. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by,
When the Micro-electro-mechanaccelerometer accelerometer of described three axial directions is in resonant operational state, the Micro-electro-mechanaccelerometer accelerometer of three axial direction
Observing and controlling integrated circuit also includes driving circuit and frequency measurement circuit.
8. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by,
When the Micro-electro-mechanaccelerometer accelerometer of described three axial directions is in pendulum-type working method, the Micro-electro-mechanaccelerometer accelerometer of three axial direction
Observing and controlling integrated circuit includes the 3rd amplifier, the 3rd low pass filter.
9. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by, micro- clock conditioning integrated circuit includes micro- clock physical system interface circuit, frequency divider, phase discriminator, the 4th
Low pass filter, voltage controlled oscillator.
10. the time-sharing multiplex integrated circuit according to claim 1 suitable for single-sheet miniature location navigation time dissemination system, its
It is characterised by, described information, which resolves control circuit, includes Kalman filtering circuit, integrating circuit, inertial navigation counting circuit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111538356A (en) * | 2020-04-03 | 2020-08-14 | 四川知微传感技术有限公司 | Time-division multiplexing triaxial accelerometer and control method thereof |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111538356A (en) * | 2020-04-03 | 2020-08-14 | 四川知微传感技术有限公司 | Time-division multiplexing triaxial accelerometer and control method thereof |
| CN111538356B (en) * | 2020-04-03 | 2022-10-18 | 四川知微传感技术有限公司 | Time division multiplexing triaxial accelerometer and control method thereof |
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