CN201075127Y - GPS principle synthetic experimental instrument - Google Patents
GPS principle synthetic experimental instrument Download PDFInfo
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- CN201075127Y CN201075127Y CNU2007200403281U CN200720040328U CN201075127Y CN 201075127 Y CN201075127 Y CN 201075127Y CN U2007200403281 U CNU2007200403281 U CN U2007200403281U CN 200720040328 U CN200720040328 U CN 200720040328U CN 201075127 Y CN201075127 Y CN 201075127Y
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- gps
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Abstract
The utility model provides a comprehensive experiment instrument which simulates global positioning system (GPS) principle. The instrument is provided with a round plane which simulates the earth and takes the central point of the round plane as a pole; a global plane graph is drawn with the equator and meshes on the round plane; three fixed injection stations are distributed uniformly on the equator of the plane graph; the simulated global plane is provided with a movable trolley which has adjustable height and represents a GPS receiving terminal. Not less than four semi-elliptical metal tracks which are staggered and uniformly arranged above the round plane of the simulated plane so as to simulate the tracks of synchronous global satellite; each metal track is additionally provided with a simulation satellite which can move along the track. Ultrasonic emitting and receiving sensors, infrared emitting and receiving sensors and corresponding measuring and controlling circuit are arranged on the simulation satellite, the injection station and the movable trolley. The simulation satellite is symmetrically provided with two solar panels and discharging batteries, thus forming a set of complete simulation GPS global positioning system.
Description
Affiliated technical field
The utility model relates to the experiment teaching instrument of a kind of electronic measurement and control aspect, especially according to simulating global positioning system (GPS) the principle comprehensive test instrument of GPS (GPS) positioning principle of reality design.
Background technology
GPS (GPS) be by 24 gps satellites on 10,000 2 thousand kilometers high-altitude overhead, orbit round the earth with about 12 hours cycle, make at any time, on the ground a bit can observe satellite more than 4 arbitrarily simultaneously.Because the position of satellite is accurately as can be known, in GPS observation, we can obtain the distance of satellite to receiver, according to the range formula in the three-dimensional coordinate, utilize 3 satellites, just can form 3 equations, solve observation station the position (X, Y, Z).Consider the clock of satellite and the error between the receiver clock, in fact 4 unknown numbers are arranged, X, Y, Z and clock correction, thereby need introduce the 4th satellite, form 4 equations and find the solution, thereby obtain longitude and latitude, the elevation of observation station, calculate information such as precise time again according to longitude and latitude.
For navigator fix, gps satellite is a dynamic known point.The position of star be the parameter of ephemeris-description satellite motion according to satellites transmits and track thereof calculate.The ephemeris that every gps satellite is broadcast is provided by ground monitoring system.Whether the various device on the satellite operate as normal, and whether satellite all will be monitored and be controlled always along the planned orbit operation by uphole equipment.Another vital role of ground monitoring system is to keep each satellite to be in same time standard-gps time system.This just needs land station to monitor the time of each satellite, obtains clock correction.Issue satellite by the ground injection plant then, satellite is issued subscriber equipment by navigation message again.The ground monitoring system of GPS work satellite comprises a master station, three injection plants and five monitoring stations.
The task of gps signal receiver is: can capture the signal by the selected satellite to be measured of certain satellite altitude cutoff angle, and follow the tracks of the operation of these satellites, received gps signal is carried out conversion, amplification and processing, so that measure the travel-time of gps signal from the satellite to the receiver antenna, separate and translate the navigation message that gps satellite sends, calculate the three-dimensional position of survey station in real time, position, even three-dimensional velocity and time.
In the static immobilization, GPS receiver self-position in the process of catching and following the tracks of gps satellite immobilizes, receiver is measured the travel-time of gps signal accurately, utilizes the known location of gps satellite at rail, calculates the three-dimensional coordinate of receiver antenna position.Kinematic Positioning then is to measure the running orbit of a moving object with the GPS receiver.
Because the principle of GPS (GPS) is difficult to demonstration on the classroom, the student is not easy to understand.Existing GPS experiment instrument all is to be connected with computer with actual GPS receiver module, directly receives the signal of sky gps satellite, demonstrates at that time longitude and latitude and time on computers.Because the displacement of instrument only limits to indoor when class demonstration, the change amount signal that receives is very little, poor effect to the motion state measurement, and whole instrument moves also inconvenient, this in addition experiment only limits to observation and the use to the GPS receiver module, the student to the total system of GPS transmit and receive and positioning principle lacks comprehensively and understands.
Summary of the invention
The utility model has designed the Comprehensive Experiment instrument of a kind of simulating global positioning system (GPS) according to above-mentioned existing problems.The circular flat that a simulation earth is arranged in this instrument, and be limit with the center of this circular flat, be decorated with the equator and indicate the earth planimetric map of warp and weft, on the equator of planimetric map, select three point of fixity to place three injection plants, on the earth plane of simulation, place an adjustable for height travelling car of representing the GPS receiving terminal.Above the circular flat of the simulation earth, 4 (or more than 4) the half elliptic metal tracks that evenly are staggeredly placed are used for simulating the track of synchronous earth satellite, and an analog satellite that can move along track is installed on each metal track again.Ultrasonic emitting, receiving sensor and infrared emission, receiving sensor and correspondent control circuits all are installed on analog satellite, injection plant and the travelling car, also are symmetrically installed with two solar panels and rechargeable battery etc. on the analog satellite.To carry out the signal contact with the mode of wired (or wireless) between instrument host and analog satellite, injection plant and the travelling car again, constitute the complete simulating global positioning system of a cover thus.
The beneficial effects of the utility model are, operating mechanism that can GPS that is virtually reality like reality is used for the education experiment of GPS principle, and is directly perceived lively, is convenient to teaching, helps the understanding of student to the GPS principle.
Description of drawings
Device in Fig. 1 is the structural representation of simulating global positioning system (GPS).
In Fig. 1: 1. the circular flat of simulating the earth; 2. simulate the equator of earth planimetric map; 3. simulate the track of synchronous earth satellite; 4. analog satellite; 5. three injection plants on the equator; 6.GPS the adjustable for height travelling car of receiving station; 7. instrument host
Device in Fig. 2 is the synoptic diagram of analog satellite.
In Fig. 2: 8. the solar panel of analog satellite; 9. control circuit and rechargeable battery etc. are equipped with in its inside of the entity part of analog satellite.
Embodiment
With the circular flat (1) of a big detachable round tabletop as the simulation earth, on this plane, be decorated with equator (2) and indicate the earth planimetric map of warp and weft, top at the circular flat (1) of simulating the earth, 4 (or more than 4) the half elliptic metal tracks that evenly are staggeredly placed are used for simulating the track (3) of synchronous earth satellite, an analog satellite (4) that can move along track is installed on each metal track again, go up even three the fixedly injection plants (5) of placing in the equator (2) of planimetric map, go up on the earth plane (1) of simulation and place an adjustable for height travelling car (6) of representing the GPS receiving terminal.On analog satellite (4), injection plant (5) and the travelling car (6) ultrasonic emitting, receiving sensor and infrared emission, receiving sensor and correspondent control circuits are installed all, also be symmetrically installed with two solar panels (8) on the analog satellite, control circuit and rechargeable battery etc. are equipped with in its inside of the entity part of analog satellite (9).To carry out the signal contact with the mode of wired (or wireless) between instrument host (7) and analog satellite (4), injection plant (5) and the travelling car (6) again, constitute the complete simulating global positioning system of a cover thus.
Claims (3)
1. a simulating global positioning system (GPS) principle comprehensive test instrument, it is characterized in that: the circular flat that a simulation earth is arranged, and be limit with the center of this circular flat, be decorated with the equator and indicate the earth planimetric map of warp and weft, on the equator of planimetric map, evenly place three fixedly injection plants, on the earth plane of simulation, place an adjustable for height travelling car of representing the GPS receiving terminal.
2. according to claim 1 described simulating global positioning system (GPS) principle comprehensive test instrument, it is characterized in that: above the circular flat of the simulation earth, the half elliptic metal track that is no less than 4 of evenly being staggeredly placed is used for simulating the track of synchronous earth satellite, and an analog satellite that can move along track is installed on each metal track again.
3. according to claim 1 described simulating global positioning system (GPS) principle comprehensive test instrument, it is characterized in that: ultrasonic emitting, receiving sensor and infrared emission, receiving sensor and corresponding telemetry circuit all are installed on the analog satellite in the GPS, injection plant and the travelling car, also are symmetrically installed with two solar panels and rechargeable battery on the analog satellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200403281U CN201075127Y (en) | 2007-07-24 | 2007-07-24 | GPS principle synthetic experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200403281U CN201075127Y (en) | 2007-07-24 | 2007-07-24 | GPS principle synthetic experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075127Y true CN201075127Y (en) | 2008-06-18 |
Family
ID=39520386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200403281U Expired - Fee Related CN201075127Y (en) | 2007-07-24 | 2007-07-24 | GPS principle synthetic experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075127Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261262A (en) * | 2015-11-19 | 2016-01-20 | 江南大学 | GPS (global positioning system) simulation principle experiment instrument with safety cover |
| CN105741665A (en) * | 2016-01-29 | 2016-07-06 | 北京华云智联科技有限公司 | Satellite navigation teaching demonstration platform |
| CN110517548A (en) * | 2019-08-26 | 2019-11-29 | 北京星际元会展有限公司 | Satellite positioning experience apparatus |
-
2007
- 2007-07-24 CN CNU2007200403281U patent/CN201075127Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261262A (en) * | 2015-11-19 | 2016-01-20 | 江南大学 | GPS (global positioning system) simulation principle experiment instrument with safety cover |
| CN105741665A (en) * | 2016-01-29 | 2016-07-06 | 北京华云智联科技有限公司 | Satellite navigation teaching demonstration platform |
| CN110517548A (en) * | 2019-08-26 | 2019-11-29 | 北京星际元会展有限公司 | Satellite positioning experience apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Wei Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20090824 |