Single-frequency GNSS (Global Navigation Satellite System) positioning module

Abstract

The utility model belongs to the field of satellite navigation, and particularly relates to a single-frequency GNSS (Global Navigation Satellite System) positioning module, which is characterized by comprising a signal access module used for entering Beidou satellite signals and provided with a radio frequency matching circuit; the CPU is used for processing Beidou satellite signals, and the model of the CPU is BK1662NS; the interface module is used for outputting the Beidou satellite signals processed by the CPU and supplying power to the CPU; the signal access module is connected with the CPU through a radio frequency matching circuit, and the CPU is connected with the interface module. In the utility model, a Beidou satellite signal is input from the signal access module, enters the CPU for processing through one radio frequency matching circuit, and is finally output through the interface module; namely, the positioning module can be suitable for Beidou satellite signal processing, and positioning information can be provided more stably.

Description

Technical Field

[0001] The utility model belongs to the field of satellite navigation, and particularly relates to a GNSS module. Background Art

[0002] The GNSS global satellite navigation system is mainly used in the fields of spatial positioning and position navigation, and is an important information guarantee for the economic and social development. With the development of society and economy, the satellite navigation system is increasingly penetrating into society and people's lives. In traditional fields such as transportation, agriculture, forestry, animal husbandry and fishery, and electric power energy, the integrated application is continuously deepened, the scale is continuously expanded, the effect is more remarkable, and it is developing deeply into the markets of railway transportation, inland waterway shipping, ocean navigation, air transportation and traffic infrastructure construction management. In addition, in emerging application fields such as industrial Internet, Internet of Things, and Internet of Vehicles, fields such as autonomous driving, automatic parking, and automatic logistics are continuously developing, and the economic benefits are gradually emerging.

[0003] In the GNSS global satellite navigation system, the Beidou satellite navigation system (BDS) is a satellite navigation system independently developed by China, with the characteristics of high precision, high reliability, high coverage, etc.; in order to ensure the stable reception of positioning signals, a GNSS positioning module that can adapt to and support pure Beidou is required. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a single-frequency GNSS positioning module, which can be applied to the processing of Beidou satellite signals and can provide positioning information more stably.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows.

[0006] A single-frequency GNSS positioning module, characterized in that it includes:

[0007] A signal access module for accessing Beidou satellite signals, and a radio frequency matching circuit is arranged on the signal access module;

[0008] A CPU for processing Beidou satellite signals, and the model of the CPU is BK1662NS;

[0009] An interface module for outputting the Beidou satellite signals processed by the CPU and supplying power to the CPU;

[0010] The signal access module is connected to the CPU through a radio frequency matching circuit, and the CPU is connected to the interface module.

[0011] In this module, the Beidou satellite signal is input from the signal access module, enters the CPU through a radio frequency matching circuit for processing, and is finally output through the interface module. That is, this positioning module can be applied to Beidou satellite signal processing and can provide positioning information more stably.

[0012] Further, the signal access module includes a signal entry circuit for entering the Beidou satellite signal, an amplified signal circuit for amplifying the Beidou satellite signal, and a filtering circuit for filtering the Beidou satellite signal. The signal entry circuit is connected to the amplified signal circuit, the amplified signal circuit is connected to the filtering circuit, and the filtering circuit is connected to the CPU through a radio frequency matching circuit.

[0013] Further, the model of the interface module is GT-1612.

[0014] Further, this module also includes a clock module, and the clock module is connected to the CPU.

[0015] Further, this module also includes an oscillation signal module, and the oscillation signal module is connected to the CPU.

[0016] The beneficial effect of the present utility model is that in this module, the Beidou satellite signal is input from the signal access module, enters the CPU through a radio frequency matching circuit for processing, and is finally output through the interface module. That is, this positioning module can be applied to Beidou satellite signal processing and can provide positioning information more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the circuit schematic diagram of the present utility model.

[0018] Figure 2 is the circuit schematic diagram of the access module and the CPU.

[0019] Figure 3 is the circuit schematic diagram of the access module.

[0020] Figure 4 is the circuit schematic diagram of the CPU.

[0021] Figure 5 is the circuit schematic diagram of the interface module.

[0022] Figure 6 is the circuit schematic diagram of the clock module and the oscillation signal module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] See Figure 1-6 , this embodiment provides a single-frequency GNSS positioning module, which is characterized by including:

[0025] A signal access module for accessing Beidou satellite signals, and a radio frequency matching circuit 3 is provided on the signal access module;

[0026] A CPU1 for processing Beidou satellite signals, and the model of the CPU1 is BK1662NS;

[0027] An interface module 2 for outputting the Beidou satellite signals processed by the CPU1 and supplying power to the CPU1;

[0028] The signal access module is connected to the CPU1 through a radio frequency matching circuit 3, and the CPU1 is connected to the interface module 2.

[0029] Further, the signal access module includes a signal entry circuit 4 for accessing Beidou satellite signals, an amplified signal circuit 5 for amplifying Beidou satellite signals, and a filtering circuit 6 for filtering Beidou satellite signals. The signal entry circuit 4 is connected to the amplified signal circuit 5, the amplified signal circuit 5 is connected to the filtering circuit 6, and the filtering circuit 6 is connected to the CPU1 through a radio frequency matching circuit 3.

[0030] Further, the model of the interface module 2 is GT-1612.

[0031] Further, the module further includes a clock module 7, and the clock module 7 is connected to the CPU1.

[0032] Further, the module further includes an oscillation signal module 8, and the oscillation signal module 8 is connected to the CPU1.

[0033] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A single-frequency GNSS positioning module, characterized in that: Included are: A signal access module for accessing Beidou satellite signals, wherein the signal access module is provided with a radio frequency matching circuit; A CPU for processing Beidou satellite signals, wherein the CPU model is BK1662NS; An interface module used to output Beidou satellite signals after CPU processing and to supply power to the CPU; The signal access module is connected to the CPU via a radio frequency matching circuit, and the CPU is connected to the interface module.

2. A single-frequency GNSS positioning module according to claim 1, characterized in that: The signal access module includes a signal entry circuit for entering Beidou satellite signals, a signal amplification circuit for amplifying Beidou satellite signals, and a filtering circuit for filtering Beidou satellite signals. The signal entry circuit is connected to the signal amplification circuit, the signal amplification circuit is connected to the filtering circuit, and the filtering circuit is connected to the CPU through a radio frequency matching circuit.

3. A single-frequency GNSS positioning module according to claim 1, characterized in that: The model of the interface module is GT-1612.

4. A single-frequency GNSS positioning module according to claim 1, characterized in that: The module also includes a clock module, and the clock module is connected to the CPU.

5. The single-frequency GNSS positioning module according to claim 1, characterized in that: The module also includes an oscillation signal module, and the oscillation signal module is connected to the CPU.

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