CN216623511U - Satellite navigation principle teaching experiment device - Google Patents

Abstract

The utility model relates to a teaching experiment device, in particular to a satellite navigation principle teaching experiment device. The portable Beidou satellite navigation teaching experimental device with the inertia measurement unit is arranged in a suitcase, a panel is arranged on the surface of a box body, a controller and the inertia measurement unit are arranged in the box body, and a GNSS antenna cable socket is arranged on the panel; the device comprises an RF antenna cable socket, a touch screen, a power switch, an indicator lamp, a power socket and a USB interface; the box body is also internally provided with a storage box, the box cover is provided with a storage bag for containing a USB cable, a power adapter, a GNSS antenna, an RF antenna, an auxiliary cable and a use guide, and the controller, all the components, the antenna socket and the USB interface are connected. The utility model has compact structure, is suitable for carrying and provides excellent assistance for teaching.

Description

Satellite navigation principle teaching experimental device

Technical Field

The utility model relates to a teaching experiment device, in particular to a satellite navigation principle teaching experiment device.

Background

Currently, the international committee on the global navigation satellite system (ICG) promulgates suppliers of the global navigation system 4 satellites including the Global Positioning System (GPS) in the united states, the GLONASS satellite navigation system (GLONASS) in russia, the Galileo satellite navigation system (Galileo) in the european union, and the beidou satellite navigation system (BDS) in china. Wherein: the GPS is the first global system established in the world and used for navigation and positioning, and the GLONASS becomes the second largest global satellite navigation system after rapid resuscitation, and the GLONASS are currently in the modernized updating process; galileo is the first fully civilian satellite navigation system, and is in the experimental phase.

The BDS software and hardware and industry in China enter a high-speed development stage, the BDS has already finished global networking, has a positioning time service capability equivalent to that of a GPS in the world, and with the modernization of GLONASS and the development of Galileo, a satellite navigation positioning system has already entered the GNSS era, and a positioning mode is also developed from a single system to a plurality of systems in a fusion manner. Therefore, multi-system compatible application needs to be popularized vigorously, the development of the global satellite navigation business is promoted together, the satellite navigation business becomes a new high-precision strategic industry and is widely applied to the fields of military, national economic construction and the like, the rapid development of the satellite navigation industry needs a large amount of advanced technologies and navigation professional talent support, and in order to comply with the new situation, navigation engineering is set up in a plurality of colleges and universities, and a large number of students are recruited.

Students in the navigation engineering major need to master not only the basic satellite navigation positioning principle but also the capability of research, development and application expansion of the navigation positioning technology. However, in the aspect of satellite navigation positioning practice teaching, most of the traditional practice teaching is demonstrative and verified, a comprehensive system is not formed, the correlation and systematicness among the teaching are poor, the probability and space of independent thinking and independent training of students are few, the training of problem analysis, problem solving and manual operation abilities of the students is lacked, and the requirements of training the innovation spirit and innovation abilities of the students are further not met. Aiming at the problems of insufficient analysis and solution capability and innovation capability cultivation and the like of a student system in the current navigation engineering major experiment teaching, effective Beidou satellite navigation teaching experimental equipment is urgently needed, so that an experimental platform suitable for the major is established, and the teaching effect is improved.

In the present situation, such teaching aids include a controller, an inertial measurement unit, a GNNS antenna; the RF antenna cable socket, the touch screen, the power supply and other parts are scattered, and the carrying and the arrangement are very troublesome.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a satellite navigation teaching experimental device. The utility model has compact structure, is suitable for carrying and provides excellent assistance for teaching.

The utility model is realized in this way, a satellite navigation teaching experimental device, it is set up in a suitcase, the surface of the container body sets up the faceplate, there are controllers and inertia measurement units in the container body, set up GNSS antenna cable socket on the faceplate; the device comprises an RF antenna cable socket, a touch screen, a power switch, an indicator lamp, a power socket and a USB interface; the box body is also internally provided with a storage box, the box cover is provided with a storage bag for containing a USB cable, a power adapter, a GNSS antenna, an RF antenna, an auxiliary cable and a use guide, and the controller, all the components, the antenna socket and the USB interface are connected.

According to the satellite navigation teaching experimental device, the box cover is opened during experiment, the GNNS antenna and the RF antenna are fixed at two ends of the top of the box cover and are respectively connected with the corresponding GNSS antenna cable socket and the corresponding RF antenna cable socket through the auxiliary cables.

According to the satellite navigation teaching experiment device, the containing bag is used for containing a GNSS antenna and a cable thereof, an RF antenna and a cable thereof and a use guide, and the containing box is used for containing a USB cable and a power adapter.

The utility model comprises the following steps:

1) outputting standard sentences and original data by adopting Beidou, a GPS and combined positioning;

2) the inertial measurement unit is integrated, so that the attitude can be measured, the original data such as acceleration, speed, magnetic strength and the like can be provided, and the experimental content related to inertial navigation can be completed;

3) the operation and use are convenient, the carrying and the carrying are convenient, and the experiment can be carried out outdoors;

4) by adopting the high-precision multi-mode board card, besides the conventional experiment, the high-precision RTK experiment and learning can be expanded;

5) the GNSS antenna adopts a high-precision omnidirectional antenna, and can well receive the transponder signal without angle adjustment indoors;

6) the high-performance communication chip is configured to be connected with a mobile communication network and can be used for GSM experiments;

7) the internal configuration radio station can receive a differential signal sent by an external reference station;

8) the system is provided with Bluetooth and can be connected with handheld equipment or an android system to realize embedded system development;

9) the USB interface is connected with an external computer to support various teaching experiments.

10) The panel is provided with a touch display screen, and can complete the switching of experimental functions, display experimental data and results and the like.

The utility model combines the inertial navigation and the comprehensive navigation experiment system of the satellite navigation, not only can finish the teaching experiment content of the satellite navigation, but also can finish the relevant experiment of the inertial navigation, and simultaneously can further finish the combined navigation experiment of the inertial navigation and the satellite navigation. The utility model is integrated in a laboratory box, is small and portable, and can be taken outdoors.

Drawings

FIG. 1 is a schematic view of the present invention

FIG. 2 is a schematic diagram of the present invention when the computer is connected.

Detailed Description

The utility model is further illustrated with reference to the following figures and detailed description.

As shown in fig. 1 and 2, the present invention is a satellite navigation teaching experimental device, which is arranged in a suitcase 14, the surface of the suitcase is provided with a panel, the inside of the suitcase is provided with a controller and an inertia measurement unit 8, and the panel is provided with a GNSS antenna cable socket 6; an RF antenna cable socket 7, a touch screen 9, a power switch and indicator lamp 10, a power socket 11 and a USB interface 12; the box body is also internally provided with a storage box 13, the box cover is provided with a storage bag 3 for containing a USB cable and a power adapter, a GNSS antenna 1, an RF antenna 4, auxiliary cables 2 and 5 and a use guide, and the controller, each component, the antenna socket and the USB interface are connected. In figure 15 the handle of the suitcase is shown.

According to the experimental device for the satellite navigation teaching, during experiment, the box cover is opened, the GNNS antenna and the RF antenna are fixed at two ends of the top of the box cover and are respectively connected with the corresponding GNSS antenna cable socket and the corresponding RF antenna cable socket through the auxiliary cables, and the USB interface is connected with the cable and the PC.

According to the satellite navigation teaching experimental device, the storage bag is used for storing a GNSS antenna and a cable thereof, an RF antenna and a cable thereof and a use guide, and the storage box is used for storing a USB cable and a power adapter.

The method comprises the following specific operations:

1) after the experimental box is opened, reading the document, familiarizing the equipment, not urgently operating, and please read the content in the guide, especially the 'notice';

2) remove the GNSS antenna from the pocket and connect to a "GNSS antenna" socket (above left of the panel) and place the GNSS antenna above left of the case lid;

3) remove the RF antenna from the pocket and connect to an "RF antenna" receptacle (above and to the left of the panel), and place the RF antenna above and to the right of the box lid;

4) taking out the USB cable in the storage box, wherein one end of the elbow is connected to the USB interface, and the other end of the elbow is connected with the USB interface of the experiment measurement and control computer;

5) in the storage box, the power adapter is taken out, and a power cord is connected with the power interface;

6) turning on a power switch, observing whether a power indicator lamp is lightened or not, and whether an operation interface is displayed on a touch screen or not;

7) the touch screen main interface menu and setting are operated, and help on the interface can be read. In general experiments, no setting operation is needed, the operation is determined by the experimental content, and the operation is required according to the experimental guidance in specific experiments.

The operation is as follows:

1) the experimental instrument and equipment are used to operate according to the required operation steps strictly, so that a good habit of treating scientific experiments is developed strictly, and random operation is avoided so as to avoid adverse consequences;

2) strictly forbidding live plugging and unplugging of the connector, before plugging and unplugging of the cable, whether a power switch is connected or not needs to be checked, and the operation under the condition of power failure needs to be ensured;

3) the antenna plug seat needs to be reliably connected, and the plug needs to be screwed tightly, so that good connection is ensured;

4) the inertia measurement unit is connected with the panel through a universal joint and can rotate in three directions, and the bottom of the inertia measurement unit is connected with the panel through a cable, so that the movement of the inertia measurement unit is limited to a certain extent, and excessive force and amplitude cannot be applied during operation so as to avoid damage;

5) the experiment needs to be strictly operated according to the experiment outline and the experiment instruction;

6) after the experiment is completed, the power is cut off firstly, and then the components and the cables are put into a storage box and a storage bag (the GNSS/RF antenna and the user instruction manual are recommended to be put into the storage bag, and the power adapter and the USB cable are put into the storage box).

In the teaching of the satellite navigation principle and the application course, the contents of information transmission processing, error analysis and the like in a navigation satellite system are often encountered, the teaching method of combining classroom language description with blackboard writing is only relied on by a teacher in the prior art, the transmission and analysis process of navigation satellite data cannot be visually displayed, the actual information cannot be processed and analyzed for experiment, and a student feels difficult to understand. In order to improve the teaching effect, in recent years, a course group of 'satellite navigation principle and application' of a writer introduces a Beidou science and education innovation experiment box into the teaching of the satellite navigation principle and the application course, a plurality of related experiments are utilized, contents suitable for actual operation are added into an experiment course, and a student analyzes and calculates by himself, so that the learning enthusiasm of the student is greatly stimulated, and the learning enthusiasm of the student is aroused.

The satellite navigation principle and the applied courses have various knowledge points and are relatively boring in theory learning, course groups fully utilize the powerful functions of the Beidou scientific education innovation experiment box, experiments such as Beidou/GPS original text acquisition and analysis, satellite and user position calculation, transmission error and geometric accuracy factor analysis are designed, the cognition and mastering of students on the satellite navigation principle are deepened, the practical ability of the students is improved, the learning interest of the students is stimulated, a better teaching effect is obtained, and the teaching method is worthy of being widely popularized in future teaching practice.

With the development of the inertial technology, especially the gradual maturity of the MEMS technology, the cost of the inertial system is greatly reduced, and the inertial technology is more and more widely applied in the civil field. The inertial navigation has unique advantages, and is combined with the satellite to form a combined navigation system, so that the inertial navigation has wide application prospect.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A satellite navigation principle teaching experimental device is characterized in that the device is arranged in a suitcase, the surface of the suitcase body is provided with a panel, a controller and an inertia measurement unit are arranged in the suitcase body, and a GNSS antenna cable socket is arranged on the panel; the device comprises an RF antenna cable socket, a touch screen, a power switch, an indicator lamp, a power socket and a USB interface; the box body is also internally provided with a storage box, the box cover is provided with a storage bag for containing a USB cable, a power adapter, a GNSS antenna, an RF antenna, an auxiliary cable and a use guide, and the controller, all the components, the antenna cable socket and a USB interface are connected; when the box cover is opened during the test, the GNNS antenna and the RF antenna are fixed at two ends of the top of the box cover and are respectively connected with the corresponding GNSS antenna cable socket and the corresponding RF antenna cable socket by the auxiliary cables.

2. The experimental device for teaching satellite navigation principle according to claim 1, wherein the receiving bag is used for receiving a GNSS antenna and its cable, an RF antenna and its cable and a use guide, and the receiving box is used for receiving a USB cable and a power adapter.

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