CN217278950U - Double-frequency GNSS positioning system - Google Patents
Double-frequency GNSS positioning system Download PDFInfo
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- CN217278950U CN217278950U CN202221058983.0U CN202221058983U CN217278950U CN 217278950 U CN217278950 U CN 217278950U CN 202221058983 U CN202221058983 U CN 202221058983U CN 217278950 U CN217278950 U CN 217278950U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a double-frequency GNSS positioning system, which comprises a power module and a power module, wherein the power module is used for providing power for the whole system; the signal receiving module receives signals sent by a satellite; the processor is connected with the signal receiving module and the power supply module and calculates accurate position information through signals received by the signal receiving module; the key module is connected with the processor and comprises a starting key and a resetting key; the starting key is connected to a second pin of the processor; the reset key is connected to an eighth pin of the processor; the power supply module comprises a voltage stabilizing circuit, and the voltage stabilizing circuit outputs a stabilized voltage power supply to supply power to the processor; the signal receiving module is an active dual-frequency antenna. The utility model discloses a carrier signal of two obstructed wave bands is received to active dual-frequency antenna, and then eliminates the ionosphere and to the delay influence of electromagnetic wave signal, realizes the location of higher accuracy.
Description
Technical Field
The utility model relates to a satellite positioning module field, concretely relates to dual-frenquency GNSS positioning system.
Background
The GNSS positioning module is a module that accurately positions itself based on a satellite positioning system, and is widely applied to the fields of car navigation, ship guidance, and the like. The mainstream civil satellite positioning systems include China Beidou, American GPS, European GALILEO, Russian GLONASS and the like. However, most of the existing positioning modules only support the united states GPS positioning system or dual-mode positioning, and are only well applied in open places, but the problem that the positioning accuracy is low and real-time positioning cannot be realized occurs when buildings or urban areas are around.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dual-frenquency GNSS positioning system is in order to solve the technical problem who mentions in the background art.
A dual-frequency GNSS positioning system comprises a power supply module, a power supply module and a power supply module, wherein the power supply module is used for supplying power to the whole system; the signal receiving module receives signals sent by a satellite; the processor is connected with the signal receiving module and the power supply module and calculates accurate position information through signals received by the signal receiving module; the key module is connected with the processor and comprises a start key and a reset key; the starting key is connected to a second pin of the processor; the reset key is connected with an eighth pin of the processor; the power supply module comprises a voltage stabilizing circuit, and the voltage stabilizing circuit outputs a stabilized voltage power supply to supply power to the processor; the signal receiving module is an active dual-frequency antenna.
The utility model discloses a make the system realize more accurate location and optimize the system, carried out following further design to the scheme.
Further, the processor is model TAU 1201.
Further, the processor is connected with a battery; the positive pole of the battery is connected with the 22 pin of the processor, and the negative pole of the battery is connected with the GND pin of the processor.
Further, the voltage stabilizing circuit is connected with a voltage stabilizer with the model number of MIC 55205-3.3.
Furthermore, after the key series resistor R2 is started, the key series resistor R2 is connected with a second pin of the processor; the reset key series resistor R3 is connected with the eighth pin of the processor.
Further, the device also comprises an indication module connected with the processor; the indicating module comprises a signal indicating lamp and a voltage stabilizing indicating lamp, the voltage stabilizing indicating lamp is connected to the output end of the voltage stabilizing circuit, and the signal indicating lamp is connected to the third pin of the processor.
The utility model has the following advantages
1. The utility model provides a dual-frequency GNSS positioning system, which comprises a processor, a signal receiving module consisting of an active dual-frequency antenna, a key module and a power module, wherein the power module provides power for the whole system, and the key module can start the system or reset; the signal receiving module can simultaneously receive carrier signals with frequencies of 1575MHz and 1176MHz, and the influence of the ionosphere on the delay of electromagnetic wave signals can be eliminated by utilizing the difference of double frequencies to the delay of the ionosphere, so that higher positioning accuracy is realized.
2. The utility model discloses a controller provides backup battery, and backup battery can last save ephemeris and time after the system outage, can guarantee that the system can fix a position rapidly after follow-up last electricity.
3. The utility model discloses a voltage stabilizing circuit of power module configuration, voltage stabilizing circuit can step down the power supply of input for the power supply is more stable.
Drawings
Fig. 1 is a schematic connection diagram of the modules according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a positioning system according to an embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a dual-frequency GNSS positioning system, which comprises a power module, a signal receiving module, a processor, a key module and an indicating module; select for use hua da beidou TAU1201 as entire system's treater, this chip has the function of high accuracy, high sensitivity and low-power consumption, can realize sub-meter level location, and TAU1201 is a dual-frenquency GNSS positioning device simultaneously, supports including big dipper No. three satellite navigation systems and all civilian navigation satellite systems in the world.
In this embodiment, the signal receiving module selects an active dual-frequency (L1+ L5) antenna, and the dual-frequency antenna can simultaneously receive carrier signals of 1575MHz and 1176 MHz. The difference of double frequency to the delay of the ionized layer can eliminate the delay influence of the ionized layer to electromagnetic wave signals, and realize higher-precision positioning. The signal receiving module is connected to the 11 th pin of the processor.
In this embodiment, the power module includes a voltage stabilizing circuit and a 5V dc input power supply, the voltage stabilizing circuit is composed of a voltage stabilizer of MIC55205-3.3, and the voltage stabilizer can step down the 5V dc output power supply to a 3.3V dc power supply to meet the power supply requirement of the controller.
In this embodiment, a fifth pin power output terminal of the voltage stabilizer is connected with a POW voltage stabilization indicator light, and the voltage stabilization indicator light is turned on when the voltage stabilizer supplies power to the processor, so as to display the operating state of the voltage stabilizing circuit.
In this embodiment, the 3 rd PPS pin of the processor is connected with a signal indicator light, and the signal indicator light flashes once 1 second after the antenna successfully collects the signal.
In this embodiment, the key module includes a reset key and a start key, the reset key is connected to an eighth pin of the processor, and the reset key is used for resetting; the start key is connected to a second pin of the processor and is used for starting the system.
In this embodiment, a backup battery is connected to the processor, a positive electrode of the backup battery is connected to the twenty-second pin of the processor after being connected to the resistor R6 in series, and a negative electrode of the backup battery is connected to the 24 nd GND pin of the processor.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the scope of the patent should not be limited thereto. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (6)
1. A dual-frequency GNSS positioning system is characterized by comprising
The power supply module is used for providing power supply for the whole system;
the signal receiving module receives signals sent by a satellite;
the processor is connected with the signal receiving module and the power supply module and calculates accurate position information through signals received by the signal receiving module;
the key module is connected with the processor and comprises a start key and a reset key;
the starting key is connected to a second pin of the processor; the reset key is connected with an eighth pin of the processor;
the power supply module comprises a voltage stabilizing circuit, and the voltage stabilizing circuit outputs a voltage stabilizing power supply to supply power to the processor;
the signal receiving module is an active dual-frequency antenna.
2. The dual-frequency GNSS positioning system of claim 1 wherein the processor is of the type TAU 1201.
3. The dual-band GNSS positioning system of claim 1 wherein a battery is connected to the processor; the positive pole of the battery is connected with the 22 pin of the processor, and the negative pole of the battery is connected with the GND pin of the processor.
4. The dual-frequency GNSS positioning system of claim 1, wherein the voltage regulator circuit is connected to a voltage regulator of type MIC 55205-3.3.
5. The dual-band GNSS positioning system of claim 1 wherein said start key is connected in series with a resistor R2 and then to a second pin of the processor; the reset key series resistor R3 is connected with the eighth pin of the processor.
6. The dual-band GNSS positioning system of claim 1 further comprising an indication module coupled to the processor; the indicating module comprises a signal indicating lamp and a voltage stabilizing indicating lamp, the voltage stabilizing indicating lamp is connected to the output end of the voltage stabilizing circuit, and the signal indicating lamp is connected to the third pin of the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221058983.0U CN217278950U (en) | 2022-04-28 | 2022-04-28 | Double-frequency GNSS positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221058983.0U CN217278950U (en) | 2022-04-28 | 2022-04-28 | Double-frequency GNSS positioning system |
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| Publication Number | Publication Date |
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| CN217278950U true CN217278950U (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221058983.0U Active CN217278950U (en) | 2022-04-28 | 2022-04-28 | Double-frequency GNSS positioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116594041A (en) * | 2023-07-17 | 2023-08-15 | 深圳市天龙世纪科技发展有限公司 | Low-power-consumption positioning method, system and storage medium based on double-frequency combination |
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2022
- 2022-04-28 CN CN202221058983.0U patent/CN217278950U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116594041A (en) * | 2023-07-17 | 2023-08-15 | 深圳市天龙世纪科技发展有限公司 | Low-power-consumption positioning method, system and storage medium based on double-frequency combination |
| CN116594041B (en) * | 2023-07-17 | 2023-09-19 | 深圳市天龙世纪科技发展有限公司 | Low-power-consumption positioning method, system and storage medium based on double-frequency combination |
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