CN214951384U - Multi-strapdown inertial navigation switching system - Google Patents
Multi-strapdown inertial navigation switching system Download PDFInfo
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- CN214951384U CN214951384U CN202022428479.2U CN202022428479U CN214951384U CN 214951384 U CN214951384 U CN 214951384U CN 202022428479 U CN202022428479 U CN 202022428479U CN 214951384 U CN214951384 U CN 214951384U
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- inertial navigation
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Abstract
The utility model discloses a many strapdowns are used to lead switched systems, be used to lead the system including host system, GPS module, power module and the strapdowns more than two. The main control module is respectively connected with each strapdown inertial navigation system and the GPS module, and the power supply module is respectively connected with the main control module, each strapdown inertial navigation system and the GPS module. The utility model discloses a host system reads the data of a plurality of strapdown inertial navigation systems to do the comparison in the data of GPS module, select the higher strapdown inertial navigation system of accuracy as current positioning system's the system of chooseing for use. And data of a plurality of strapdown inertial navigation systems are selected preferentially, so that the accuracy of the positioning system is improved. And, the utility model discloses when one of them strapdown is used to lead the trouble of system, can select all the other any strapdown to be used to lead the system, improved positioning system's stability.
Description
Technical Field
The utility model relates to a strapdown is used to lead the field, in particular to many strapdowns are used to lead switched systems.
Background
The strapdown inertial navigation unit (IMU) is a system which is combined by a plurality of sensors and can be positioned in real time. Because the positioning data comes from the inertial navigation unit, the strapdown inertial navigation unit (IMU) has the advantages of small external interference, quick positioning data refreshing and the like relative to a satellite navigation system (GPS).
In the prior art, an IMU is typically used in a positioning system. When the IMU is in fault, the positioning function of the positioning system has the problems of inaccurate positioning, invalid positioning function and the like. Therefore, the stability of the positioning system is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the multi-strapdown inertial navigation switching system is provided, and accuracy and stability of a positioning system are improved.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a multi-strapdown inertial navigation switching system comprises a main control module, a GPS module, a power supply module and more than two strapdown inertial navigation systems;
the main control module is respectively connected with each strapdown inertial navigation system and the GPS module, and the power supply module is respectively connected with the main control module, each strapdown inertial navigation system and the GPS module.
Furthermore, the strapdown inertial navigation system is a first strapdown inertial navigation system and a second strapdown inertial navigation system, and the first strapdown inertial navigation system and the second strapdown inertial navigation system are respectively connected with the main control module and the power supply module.
Further, the type of a chip adopted by the strapdown inertial navigation system is MPU 6500.
Further, the positioning module that the GPS module adopted is ZED-F9P.
Further, the positioning module adopted by the GPS module is UM 332.
To sum up, the beneficial effects of the utility model reside in that: the method comprises the steps of reading data of a plurality of strapdown inertial navigation systems through a main control module, comparing the data with data of a GPS module, and selecting the strapdown inertial navigation system with higher accuracy as a selection system of a current positioning system. And data of a plurality of strapdown inertial navigation systems are selected preferentially, so that the accuracy of the positioning system is improved. And, the utility model discloses when one of them strapdown is used to lead the trouble of system, can select all the other any strapdown to be used to lead the system, improved positioning system's stability.
Drawings
Fig. 1 is a schematic connection diagram illustrating an overall structure of a multi-strapdown inertial navigation switching system according to an embodiment of the present invention;
description of reference numerals:
1. a main control module; 2. a GPS module; 3. a power supply module; 4. a first strapdown inertial navigation system; 5. and a second strapdown inertial navigation system.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a multi-strapdown inertial navigation switching system includes a main control module 1, a GPS module 2, a power supply module 3, and more than two strapdown inertial navigation systems;
the main control module 1 is respectively connected with each strapdown inertial navigation system and the GPS module 2, and the power supply module 3 is respectively connected with the main control module 1, each strapdown inertial navigation system and the GPS module 2.
From the above description, the beneficial effects of the present invention are: the method comprises the steps that data of a plurality of strapdown inertial navigation systems are read through a main control module 1 and compared with data of a GPS module 2, and the strapdown inertial navigation system with high accuracy is selected as a selection system of a current positioning system. And data of a plurality of strapdown inertial navigation systems are selected preferentially, so that the accuracy of the positioning system is improved. And, the utility model discloses when one of them strapdown is used to lead the trouble of system, can select all the other any strapdown to be used to lead the system, improved positioning system's stability.
Further, the strapdown inertial navigation system is a first strapdown inertial navigation system 4 and a second strapdown inertial navigation system 5, and the first strapdown inertial navigation system 4 and the second strapdown inertial navigation system 5 are respectively connected with the main control module 1 and the power supply module 3.
From the above description, the number of strapdown inertial navigation systems may be two. The main control module 1 is preferred according to the first and second different accuracies.
Further, the type of a chip adopted by the strapdown inertial navigation system is MPU 6500.
As can be seen from the above description, the gyroscope acceleration sensor MPU6500 is selected in the strapdown inertial navigation system.
Further, the positioning module adopted by the GPS module 2 is ZED-F9P.
From the above description, the positioning module adopted by the GPS module 2 is the high-precision positioning module ZED-F9P.
Further, the positioning module adopted by the GPS module 2 is UM 332.
As can be seen from the above description, the positioning module of the GPS module 2 may also be selected as the UM 332.
Referring to fig. 1, a first embodiment of the present invention is:
a plurality of strapdown inertial navigation systems are mounted on a carrier and used preferentially, so that the accuracy and the stability of the strapdown inertial navigation system are improved. The utility model is suitable for a carrier such as aircraft, boats and ships and vehicle.
A multi-strapdown inertial navigation switching system comprises a main control module 1, a GPS module 2, a power supply module 3 and more than two strapdown inertial navigation systems. The main control module 1 is connected with each strapdown inertial navigation system and the GPS module 2 respectively, and the power supply module 3 is connected with the main control module 1, each strapdown inertial navigation system and the GPS module 2 respectively.
As shown in fig. 1, in this embodiment, the main control module 1 simultaneously acquires the operation data of a plurality of strapdown inertial navigation systems, and performs accuracy comparison, and then selects a strapdown inertial navigation system with higher accuracy as a currently used system. When any one or more strapdown inertial navigation systems have faults, the main control chip can select other strapdown inertial navigation systems which do not have faults, so that the accuracy and the stability of the strapdown inertial navigation systems are ensured.
Referring to fig. 1, a second embodiment of the present invention is:
a plurality of strapdown inertial navigation systems are mounted on a carrier and used preferentially, so that the accuracy and the stability of the strapdown inertial navigation system are improved. The utility model is suitable for a carrier such as aircraft, boats and ships and vehicle.
On the basis of the first embodiment, as shown in fig. 1, the strapdown inertial navigation systems are a first strapdown inertial navigation system 4 and a second strapdown inertial navigation system 5, and the first strapdown inertial navigation system 4 and the second strapdown inertial navigation system 5 are respectively connected to the main control module 1 and the power supply module 3. In the embodiment, the two strapdown inertial navigation systems are installed in practical application, so that the effects of improving the accuracy and stability of the strapdown inertial navigation systems can be achieved.
To sum up, the utility model provides a many strapdowns are used to lead switched systems reads a plurality of strapdowns and is used to lead the data of system through host system to do the comparison in the data of GPS module, select the higher strapdowns of accuracy and be used to lead the system for use as current positioning system's system for selection. And data of a plurality of strapdown inertial navigation systems are selected preferentially, so that the accuracy of the positioning system is improved. And, the utility model discloses when one of them strapdown is used to lead the trouble of system, can select all the other any strapdown to be used to lead the system, improved positioning system's stability.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A multi-strapdown inertial navigation switching system is characterized by comprising a main control module, a GPS module, a power supply module and more than two strapdown inertial navigation systems;
the main control module is respectively connected with each strapdown inertial navigation system and the GPS module, and the power supply module is respectively connected with the main control module, each strapdown inertial navigation system and the GPS module.
2. The system for switching the multiple strapdown inertial navigations as claimed in claim 1, wherein the strapdown inertial navigations are a first strapdown inertial navigations system and a second strapdown inertial navigations system, and the first strapdown inertial navigations system and the second strapdown inertial navigations system are respectively connected to the main control module and the power supply module.
3. The system for switching the multiple strapdown inertial navigations as claimed in claim 1, wherein the chip type adopted by the strapdown inertial navigation system is MPU 6500.
4. The system according to claim 1, wherein the GPS module employs a positioning module ZED-F9P.
5. The system as claimed in claim 1, wherein the GPS module employs a positioning module UM 332.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022428479.2U CN214951384U (en) | 2020-10-27 | 2020-10-27 | Multi-strapdown inertial navigation switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022428479.2U CN214951384U (en) | 2020-10-27 | 2020-10-27 | Multi-strapdown inertial navigation switching system |
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| Publication Number | Publication Date |
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| CN214951384U true CN214951384U (en) | 2021-11-30 |
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| CN202022428479.2U Active CN214951384U (en) | 2020-10-27 | 2020-10-27 | Multi-strapdown inertial navigation switching system |
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