CN205580467U - Inertia measuring unit simulator - Google Patents
Inertia measuring unit simulator Download PDFInfo
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- CN205580467U CN205580467U CN201620158597.7U CN201620158597U CN205580467U CN 205580467 U CN205580467 U CN 205580467U CN 201620158597 U CN201620158597 U CN 201620158597U CN 205580467 U CN205580467 U CN 205580467U
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- measurement unit
- inertial measurement
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- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000001367 artery Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
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Abstract
The utility model relates to an inertia measuring unit simulator, this simulator include the microprocessor circuit, be used for with the communication circuit of host computer communication and be used for realizing the modulate circuit of noise isolation, level conversion and reinforcing driving force before the pulse output, the microprocessor circuit is the DSP chip, the IO mouth of DSP chip respectively with communication circuit with take care of circuit connection, the modulate circuit includes the high -speed opto -coupler circuit and the phase inverter of at least a set of series connection, and this simulator still includes supply circuit, supply circuit is connected with the power supply pin of DSP chip. The utility model discloses simulator simple structure, stability is good, the real -time is high, has realized the inertia simulation demand of this type guided missile completely, and this simulator has important using value in the emulation test of multiple aircraft is experimental.
Description
Technical field
This utility model relates to the Inertial Measurement Unit simulation in a kind of Hardware-in-loop Simulation Experimentation being applied to inertial guidance system
Device.
Background technology
Inertial Measurement Unit (IMU) is the ingredient of strapdown inertial guidance system, including three gyro passages and three lines
Acceleration passage, each gyro or linear accelerometer passage are respectively arranged with two-way positive and negative pulse output, have 12 tunnel output arteries and veins altogether
Rush signal.Inertial Measurement Unit simulator is used for simulating 12 road pulse signals of Inertial Measurement Unit, at strap-down inertial guidance
The Hardware-in-loop Simulation Experimentation of system has important practical value, currently mainly has following two implementation: (1) uses
The devices such as numeral I/O card control programmer timing counter complete, such as list of references " a kind of simulation inertia combination output circuit
Design and realization " (author: Ren Ping Yu, Guo Li, periodical: modern electronic technology, 2010,05:51-54)；(2) use
Programmable logic chip coordinates the devices such as programmer timing counter to complete, such as list of references " guided missile inertia based on CPLD
Measuring unit Simulator design " (author: Xu Jianyun, Lu Hao, Du Yimin etc., periodical: China's inertial technology
Report, 2007,15 (2): 16-170).
First method system structure is simple, but cost is high, portable capability is poor.Second method hardware volume is little, portable,
Using method is easy, but circuit devcie is various, structure is complicated.
Summary of the invention
This utility model provides a kind of Inertial Measurement Unit simulator, to solve existing Inertial Measurement Unit simulator volume
Greatly, cost problem high, baroque.
For solving above-mentioned technical problem, Inertial Measurement Unit simulator of the present utility model includes logical for communicate with host computer
Letter circuit, microcontroller circuit and noise isolation, level conversion and the tune of enhancing driving force before realizing pulse output
Reason circuit, described microcontroller circuit is dsp chip, the I/O mouth of described dsp chip respectively with telecommunication circuit and conditioning
Circuit is to connection；Described modulate circuit includes high speed photo coupling circuit and the phase inverter that least one set connects, and this simulator also includes
Power supply circuits, described power supply circuits are connected with the energization pins of dsp chip.
Described high speed photo coupling circuit is 3, and each high speed photo coupling circuit has two-way output.
The photoelectrical coupler of described high speed photo coupling circuit uses HCPL0631 chip.
Described dsp chip also includes debugging pin for the download program of external downloader.
Described dsp chip also includes the crystal oscillator pin for external crystal oscillating circuit.
Described dsp chip is DSPIC33EP family chip.
Described telecommunication circuit includes the MAX489EESD chip for completing level conversion function.
Described power circuit includes AMS1117-3.3 or the LM1117T-3.3 chip for voltage transformation.
Described power circuit includes DC/DC module.
The beneficial effects of the utility model: this Inertial Measurement Unit simulator can produce 12 tunnels under the control of host computer
The high-speed pulse signal of Parameter adjustable, circuit structure is simple, good stability, real-time are high, fully achieves this type guided missile
Inertia analogue simulation demand, this simulator has important using value in the emulation testing of multiple aircraft is tested.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the Inertial Measurement Unit simulator of the present embodiment；
Fig. 2 is the microcontroller circuit schematic diagram of the present embodiment；
Fig. 3 is the power circuit principle figure of the present embodiment；
Fig. 4 is the telecommunication circuit schematic diagram of the present embodiment；
Fig. 5 is the modulate circuit schematic diagram of the present embodiment；
Fig. 6 is software flow pattern.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
As it is shown in figure 1, this Inertial Measurement Unit simulator includes the telecommunication circuit for communicating, microprocessor electricity with host computer
Road and noise isolation, level conversion and the modulate circuit of enhancing driving force before realizing pulse output, described micro-process
Device circuit is dsp chip, and described dsp chip includes not nursing one's health output of pulse signal pin and serial communication pin, described
Do not nurse one's health output of pulse signal pin and the serial communication pin corresponding pin respectively with modulate circuit and telecommunication circuit to be connected；Institute
Stating modulate circuit and include high speed photo coupling circuit and phase inverter, the input of described high speed photo coupling circuit connects not adjusting of dsp chip
Reason output of pulse signal pin, each outfan of described high speed photo coupling circuit connects a phase inverter respectively.This inertia measurement list
Unit's simulator also includes power circuit, and this circuit is connected with the energization pins of dsp chip.
Below each building block is described in detail.
The microprocessor of the present embodiment selects the DSPIC33EP family chip of MicroChip company, and this microprocessor has spirit
The communication capacity lived and abundant peripheral configuration, coordinate respective peripheral circuit, under the control of software code, and can be real-time
Complete command reception and pulse data to process, the most accurately output multi-channel parameter (pulse width, cycle, dutycycle and defeated
Go out quantity) timely adjustable pulse signal.
As in figure 2 it is shown, microcontroller circuit consists predominantly of: energization pins, serial communication pin, do not nurse one's health pulse signal
Output pin.Energization pins numbering has 10, and 19,26,35,38,57, it is connected with power circuit respective pins.Serial communication electricity
Road pin numbering has 31, and 33,58,59, it is connected with the MAX489EESD chip corresponding pin of telecommunication circuit.Do not nurse one's health arteries and veins
Rush output pin numbering and have 46,49,50,51,52,53, corresponding with modulate circuit high speed photo coupling HCPL0631 chip draw
Foot connects.
Further, microcontroller circuit also includes download program debugging pin and crystal oscillator pin.Download program debugging pin numbering
Have 7,17,18, connected by X6 adapter and external downloader.Crystal oscillator pin numbering has 39,40, external 10Mhz
Crystal oscillator.
Telecommunication circuit is between host computer and microprocessor, and it uses MAX489EESD chip to complete level conversion, and adopts
Using 422 serial communications, physical circuit is as shown in Figure 4.
Modulate circuit is made up of high speed photo coupling and reverser, mainly realizes noise isolation, level conversion and increasing before pulse output
The function of strong driving force.High speed photo coupling uses HCPL0631 chip, and the output of pulse signal pin of not nursing one's health of dsp chip connects
Connecing high speed photo coupling HCPL0631 chip corresponding pin, the outfan of high speed photo coupling circuit connects phase inverter.In the present embodiment
Modulate circuit includes that three high speed photo coupling circuit, each high speed photo coupling circuit have two-way output, and the output of every road is all connected with one
Phase inverter.
Inertial Measurement Unit simulator can provide+5V (VCC in corresponding diagram 3) power supply to input by power circuit test equipment.
Telecommunication circuit and modulate circuit use+5V to power, and microprocessor uses AMS1117-3.3 or LM1117T-3.3 (alternative)
+ 3.3V (VCC3V3 in corresponding diagram 3) power supply after chip conversion.If using under other voltage input conditions, phase can be added
Answering the DC/DC module of parameter, input voltage is dropped to+5V, the most compatible circuit uses, and physical circuit figure is shown in Fig. 3 institute
Show.
Want the control of software code when the Inertial Measurement Unit simulator of specifically used the present embodiment, software code is according to main place
Reason device parameter characteristic, by the configuration of reasonable arrangement system, software timing, internal interrupt, communicates and exports and compare peripheral hardware etc.
Function debugging completes, and detailed code flow is as shown in Figure 6.
The Inertial Measurement Unit simulator of the present embodiment is as a part for certain test equipment, for true certain type guided missile of simulation
Inertia combination signal.Under the control of host computer (by Serial Port Transmission control instruction, baud rate can reach 1M), can produce
12 LUSHEN numbers (pulse number, dutycycle, pulsewidth) adjustable high speed (can complete 12 tunnel command reception, arteries and veins in every 1ms
Rush parameter adjustment and pulse output, the most exportable 255 pulses in instruction cycle every road) pulse signal.This enforcement
The Inertial Measurement Unit simulator structure of example is succinct, good stability, real-time are high, and the inertia fully achieving this type guided missile is imitated
Really simulate demand.Adjusting through certain circuit and software, this simulator has weight in the emulation testing of multiple aircraft is tested
The using value wanted.
Claims (9)
1. Inertial Measurement Unit simulator, it is characterized in that, this simulator include microcontroller circuit, for the telecommunication circuit of host computer communication and for realize pulse output before noise isolation, level conversion and the modulate circuit of enhancing driving force, described microcontroller circuit is dsp chip, and the I/O mouth of described dsp chip is connected with telecommunication circuit and modulate circuit respectively；Described modulate circuit includes high speed photo coupling circuit and the phase inverter that least one set connects, and this simulator also includes that power circuit, described power circuit are connected with the energization pins of dsp chip.
The most according to claim 1, Inertial Measurement Unit simulator, it is characterised in that described high speed photo coupling circuit is 3, each high speed photo coupling circuit has two-way output.
Inertial Measurement Unit simulator the most according to claim 1, it is characterised in that the photoelectrical coupler of described high speed photo coupling circuit uses HCPL0631 chip.
Inertial Measurement Unit simulator the most according to claim 1, it is characterised in that described dsp chip also includes debugging pin for the download program of external downloader.
Inertial Measurement Unit simulator the most according to claim 1, it is characterised in that described dsp chip also includes the crystal oscillator pin for external crystal oscillating circuit.
6. according to the arbitrary described Inertial Measurement Unit simulator of claim 1-5, it is characterised in that described dsp chip is DSPIC33EP family chip.
Inertial Measurement Unit simulator the most according to claim 1, it is characterised in that described telecommunication circuit includes the MAX489EESD chip for completing level conversion function.
Inertial Measurement Unit simulator the most according to claim 1, it is characterised in that described power circuit includes AMS1117-3.3 or the LM1117T-3.3 chip for voltage transformation.
Inertial Measurement Unit simulator the most according to claim 1, it is characterised in that described power circuit includes DC/DC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620158597.7U CN205580467U (en) | 2016-03-02 | 2016-03-02 | Inertia measuring unit simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620158597.7U CN205580467U (en) | 2016-03-02 | 2016-03-02 | Inertia measuring unit simulator |
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| Publication Number | Publication Date |
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| CN205580467U true CN205580467U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620158597.7U Expired - Fee Related CN205580467U (en) | 2016-03-02 | 2016-03-02 | Inertia measuring unit simulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653425A (en) * | 2020-11-27 | 2021-04-13 | 凯迈（洛阳）测控有限公司 | Universal analog conditioning module |
-
2016
- 2016-03-02 CN CN201620158597.7U patent/CN205580467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653425A (en) * | 2020-11-27 | 2021-04-13 | 凯迈（洛阳）测控有限公司 | Universal analog conditioning module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |