A satellite signal real-time synchronous conversion device

Abstract

The utility model discloses a satellite signal real-time synchronous conversion device. A Beidou module is respectively connected with a GPS module, a signal judgment module and a Beidou signal recording module; the GPS module is respectively connected with a positioning module and a Beidou signal recording module; a main control module is respectively connected with the Beidou module, the GPS module, the positioning module, the Beidou signal recording module, the signal judgment module and a communication module; the Beidou signal is received by the Beidou module and converted into a GPS signal, so that the synchronous conversion of the two signals is realized, which is helpful to unify the signal standards between different systems, is convenient for the unified processing and application of the signal, and improves the system stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal conversion, and in particular relates to a satellite signal real-time synchronous conversion device. Background Art

[0002] With the rapid development of global satellite navigation technology, various navigation systems such as GPS, BDS (China's Beidou Satellite Navigation System), GLONASS (Russia's Global Navigation Satellite System) and Galileo (European Global Navigation Satellite System) have emerged, providing users with more abundant positioning, navigation and timing services; among these systems, GPS and BDS are often used in combination to improve positioning accuracy and reliability due to their respective advantages;

[0003] However, when the dual-combination system of GPS and BDS is applied to satellite signal receiving and conversion equipment, its complexity becomes an issue that cannot be ignored. The two systems have different signal frequencies, encoding methods and data formats, requiring the equipment to have strong signal processing capabilities to analyze the two signals at the same time. The dual-combination system requires complex algorithms to fuse the data of the two systems. The design and implementation of these algorithms increase the complexity of the system.

[0004] Patent CN102608632A discloses a Beidou GPS dual-mode cloud differential positioning method and system. This method and system utilizes a cloud equipped with a Beidou GPS dual-mode receiver, and outputs differential information by analyzing the accuracy of Beidou and GPS positioning results and verifying that they are close to a standard base station. Through cloud data sharing, ordinary clouds near the reference cloud can use the differential data of the reference cloud to improve positioning accuracy. Although this method improves positioning accuracy, it still uses two signals, Beidou and GPS, which increases the complexity of the system. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems and to provide a satellite signal real-time synchronous conversion device.

[0006] The utility model proposes a satellite signal real-time synchronous conversion device, including a Beidou module, a GPS module, a positioning module, a Beidou signal recording module, a signal judgment module, a main control module and a communication module;

[0007] The Beidou module is respectively connected to the GPS module, the signal judgment module and the Beidou signal recording module;

[0008] The GPS module is respectively connected to the positioning module and the Beidou signal recording module;

[0009] The main control module is respectively connected to the Beidou module, the GPS module, the positioning module, the Beidou signal recording module, the signal judgment module and the communication module.

[0010] Optionally, the Beidou module includes two Beidou signal receiving terminals;

[0011] The Beidou module is used to receive a first Beidou signal and a second Beidou signal through two Beidou signal receiving terminals, and send the first Beidou signal and the second Beidou signal to the Beidou signal recording module;

[0012] The Beidou module, after receiving the first Beidou signal and the second Beidou signal, converts the first Beidou signal and the second Beidou signal into a first GPS signal and a second GPS signal;

[0013] The Beidou module is also used to send the first GPS signal and the second GPS signal to the GPS module.

[0014] Optionally, the GPS module includes a GPS signal selection module, a GPS signal amplification module, and a GPS signal branching module;

[0015] The GPS signal selection module receives the first GPS signal and the second GPS signal, performs signal selection, selects the signal with the strongest signal strength as the target signal, and sends the target signal to the GPS signal amplification module;

[0016] The GPS signal amplifying module acquires the target signal, amplifies the target signal to obtain an amplified target signal, and sends the amplified target signal to the GPS signal branching module;

[0017] The GPS signal splitting module acquires the amplified target signal and then splits the signal to obtain a plurality of GPS output signals;

[0018] The GPS signal amplifying module is also used to send the target signal to the positioning module.

[0019] Optionally, the positioning module includes a receiving module and a processing module;

[0020] The receiving module is used to obtain the target signal sent by the GPS signal amplifying module, convert the target signal into an electrical signal and then send it to the processing module;

[0021] The processing module is used to calculate the position, speed and time information after acquiring the electrical signal, and send the position, speed and time information to the main control module.

[0022] Optionally, the main control module obtains the position, speed and time information sent by the processing module, and sends the position, speed and time information to the communication module.

[0023] Optionally, the signal judgment module is used to detect in real time whether the Beidou signal received by the Beidou module is complete. If the received Beidou signal is complete, no operation is performed.

[0024] Optionally, the signal judgment module is used to detect in real time whether the Beidou signal received by the Beidou module is complete. If it is detected that the received Beidou signal is incomplete, the signal judgment module sends an abnormal signal instruction to the main control module; the incomplete Beidou signal means that both the first Beidou signal and the second Beidou signal are not successfully received;

[0025] After acquiring the abnormal signal instruction, the main control module sends a signal transmission interruption instruction to the Beidou module, so that the Beidou module no longer sends the GPS signal to the GPS module;

[0026] The main control module is further used to send a start command signal to the Beidou signal recording module, and the Beidou signal recording module simulates a target Beidou signal according to the recorded Beidou signal, and converts the target Beidou signal into a third GPS signal;

[0027] The Beidou signal recording module is further used to send the third GPS signal to the GPS module, so that the GPS module sends the third GPS signal to the positioning module.

[0028] Optionally, the main control module is provided with a timing module;

[0029] The timing module is used to generate a time signal and send the time signal to the positioning module, so that the processing module determines the position, speed and time information according to the third GPS signal and the time signal.

[0030] Optionally, when the signal judgment module re-detects that the Beidou module has received a complete Beidou signal, a normal activation instruction is sent to the main control module;

[0031] After acquiring the normal activation instruction, the main control module sends a startup instruction to the Beidou module, so that the Beidou module resends the GPS signal to the GPS module;

[0032] The main control module is further used to send a transmission interruption instruction to the Beidou signal recording module, so that the Beidou signal recording module no longer sends the third GPS signal to the GPS module.

[0033] Technical effects and advantages of the utility model:

[0034] 1. The Beidou module receives Beidou signals and converts them into GPS signals, realizing the synchronous conversion of the two signals. This helps to unify the signal standards between different systems, facilitates the unified processing and application of signals, and improves system stability.

[0035] 2. When the Beidou signal is incomplete, the device can take corresponding exception handling measures through the main control module and Beidou signal recording module to ensure the continuity of positioning services and improve system stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The utility model is further described below in conjunction with the accompanying drawings.

[0037] Figure 1 A module block diagram of a satellite signal real-time synchronous conversion device is provided for the embodiment of the utility model;

[0038] Figure 2 A module block diagram of a GPS module in a satellite signal real-time synchronous conversion device is provided for an embodiment of the utility model;

[0039] Figure 3 A module block diagram of a positioning module in a satellite signal real-time synchronous conversion device is provided for an embodiment of the utility model;

[0040] In the figure: 101, Beidou module; 102, GPS module; 1021, GPS signal selection module; 1022, GPS signal amplification module; 1023, GPS signal branching module; 103, positioning module; 1031, receiving module; 1032, processing module; 104, Beidou signal recording module; 105, signal judgment module; 106, main control module; 107, communication module. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. Although the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation, the type, quantity and proportion of each component in actual implementation may be changed arbitrarily, and the component layout may also be more complicated.

[0043] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a part is said to "include" a certain constituent element, unless otherwise stated, it does not exclude other constituent elements, but means that other constituent elements may be included.

[0044] like Figure 1 , the utility model provides a module block diagram of a satellite signal real-time synchronous conversion device, including a Beidou module 101, a GPS module 102, a positioning module 103, a Beidou signal recording module 104, a signal judgment module 105, a main control module 106 and a communication module 107;

[0045] The Beidou module 101 is connected to the GPS module 102, the signal determination module 105 and the Beidou signal recording module 104 respectively;

[0046] The GPS module 102 is respectively connected to the positioning module 103 and the Beidou signal recording module 104;

[0047] The main control module 106 is connected to the Beidou module 101 , the GPS module 102 , the positioning module 103 , the Beidou signal recording module 104 , the signal determination module 105 , and the communication module 107 respectively.

[0048] In one implementation, the satellite signal real-time synchronous conversion device also includes a power supply module, which includes a first DC power supply module and a second DC power supply module. The first DC power supply module and the second DC power supply module are used to supply power to the entire satellite signal real-time synchronous conversion device. The first DC power supply module and the second DC power supply module can supply power to the satellite signal real-time synchronous conversion device separately.

[0049] In one embodiment, the Beidou module 101 includes two Beidou signal receiving terminals;

[0050] Beidou module 101, used for receiving a first Beidou signal and a second Beidou signal through two Beidou signal receiving terminals, and sending the first Beidou signal and the second Beidou signal to Beidou signal recording module 104;

[0051] The Beidou module 101 converts the first Beidou signal and the second Beidou signal into a first GPS signal and a second GPS signal after receiving the first Beidou signal and the second Beidou signal;

[0052] The Beidou module 101 is further configured to send the first GPS signal and the second GPS signal to the GPS module 102 .

[0053] In one implementation, a single Beidou signal converter core board is installed in the Beidou module 101, and the single Beidou signal converter core board can be one of UB482, K823G, BTG101, etc.

[0054] In one implementation, the Beidou signal recording module 104 is installed with a Beidou signal simulation chip UM982, which integrates the functions of an RF chip, a baseband chip, and a microprocessor, and can realize functions such as Beidou signal reception, processing, and simulation.

[0055] In one embodiment, see Figure 2 As shown, the GPS module 102 includes a GPS signal selection module 1021, a GPS signal amplification module 1022, and a GPS signal splitting module 1023;

[0056] The GPS signal selection module 1021 receives the first GPS signal and the second GPS signal, performs signal selection, selects the signal with the strongest signal strength as the target signal, and sends the target signal to the GPS signal amplification module 1022;

[0057] The GPS signal amplifying module 1022 acquires the target signal, amplifies the target signal to obtain an amplified target signal, and sends the amplified target signal to the GPS signal splitting module 1023;

[0058] The GPS signal splitting module 1023 obtains the amplified target signal and then splits the signal to obtain multiple GPS output signals;

[0059] The GPS signal amplifying module 1022 is also used to send the target signal to the positioning module 103 .

[0060] In one embodiment, see Figure 2 As shown, the positioning module 103 includes a receiving module 1031 and a processing module 1032;

[0061] The receiving module 1031 is used to obtain the target signal sent by the GPS signal amplifying module 1022, convert the target signal into an electrical signal and then send it to the processing module 1032;

[0062] The processing module 1032 is used to calculate the position, speed and time information after acquiring the electrical signal, and send the position, speed and time information to the main control module 106.

[0063] In one embodiment, the main control module 106 obtains the position, speed and time information sent by the processing module 1032 , and sends the position, speed and time information to the communication module 107 .

[0064] In one embodiment, the main control module 106 is provided with a timing module;

[0065] The timing module is used to generate a time signal and send the time signal to the positioning module 103, so that the processing module 1032 determines the position, speed and time information according to the third GPS signal and the time signal.

[0066] In one implementation, the timing module can generate an accurate time signal. In a satellite navigation system, the timing module ensures that the received satellite signal is synchronized with the local time, thereby improving the accuracy of positioning.

[0067] In one embodiment, the working process of the satellite signal real-time synchronous conversion device is as follows:

[0068] The Beidou signal receiving end of the Beidou module 101 obtains the first Beidou signal and the second Beidou signal, and sends the first Beidou signal and the second Beidou signal to the signal judgment module 105; the signal judgment module 105 determines whether the first Beidou signal and the second Beidou signal are complete. If the first Beidou signal and the second Beidou signal are complete, the signal judgment module 105 sends the complete signal to the main control module 106; after obtaining the complete signal, the main control module 106 sends the recorded signal to the Beidou module 101 and the Beidou signal recording module 104; after obtaining the recorded signal, the Beidou signal recording module 104 obtains the first Beidou signal and the second Beidou signal, and simulates the Beidou signal in the next time period according to the first Beidou signal and the second Beidou signal; after obtaining the recorded signal, the Beidou module 101 converts the first Beidou signal and the second Beidou signal into the first GPS signal and the second GPS signal through the single Beidou signal converter core board, and sends the first GPS signal and the second GPS signal to the GPS module 102; the inside of the GPS module 102 After receiving the first GPS signal and the second GPS signal, the GPS signal selection module 1021 selects the signal with the strongest signal strength as the target signal, and sends the target signal to the GPS signal amplification module 1022; the GPS signal amplification module 1022 amplifies the target signal to obtain an amplified target signal, and sends the amplified target signal to the GPS signal branching module 1023; the GPS signal branching module 1023 obtains the amplified target signal and then performs signal branching to obtain multiple GPS output signals; the GPS signal amplification module 1022 is also used to send the target signal to the positioning module 103; the positioning module 103 obtains the target signal sent by the GPS signal amplification module 1022, converts the target signal into an electrical signal, and then sends it to the processing module 1032; the processing module 1032 calculates the position, speed and time information after obtaining the electrical signal, and sends the position, speed and time information to the main control module 106; the main control module 106 sends the position, speed and time information to the communication module 107.

[0069] In one implementation, the main control module 106 is provided with an MCU main control, and the MCU main control may be AB32VG1, STM32F103, etc.

[0070] In one embodiment, the workflow of the satellite signal real-time synchronous conversion device can also be as follows: the Beidou signal receiving end of the Beidou module 101 obtains the first Beidou signal and the second Beidou signal, and sends the first Beidou signal and the second Beidou signal to the signal judgment module 105; the signal judgment module 105 determines whether the first Beidou signal and the second Beidou signal are complete. If only one Beidou signal among the first Beidou signal and the second Beidou signal is complete, the signal judgment module 105 sends a local complete signal to the main control module 106; after obtaining the local complete signal, the main control module 106 sends a local recorded signal to the Beidou module 101 and the Beidou signal recording module 104; after obtaining the local recorded signal, the Beidou signal recording module 104 obtains the complete signal, and simulates the Beidou signal in the next time period according to the complete signal; after obtaining the local recorded signal, the Beidou module 101 converts the complete Beidou signal into GPS through the single Beidou signal converter core board signal, the GPS signal is sent to the GPS module 102; the GPS signal amplifying module 1022 in the GPS module 102; the GPS signal amplifying module 1022 amplifies the GPS signal to obtain an amplified target signal, and sends the amplified target signal to the GPS signal branching module 1023; the GPS signal branching module 1023 obtains the amplified target signal and then branches the signal to obtain multiple GPS output signals; the GPS signal amplifying module 1022 is also used to send the target signal to the positioning module 103; the positioning module 103 obtains the target signal sent by the GPS signal amplifying module 1022, converts the target signal into an electrical signal and then sends it to the processing module 1032; the processing module 1032 calculates the position, speed and time information after obtaining the electrical signal, and sends the position, speed and time information to the main control module 106; the main control module 106 sends the position, speed and time information to the communication module 107.

[0071] In one embodiment, the workflow of the satellite signal real-time synchronous conversion device can also be as follows: the Beidou signal receiving end of the Beidou module 101 obtains the first Beidou signal and the second Beidou signal, and sends the first Beidou signal and the second Beidou signal to the signal judgment module 105; the signal judgment module 105 determines whether the first Beidou signal and the second Beidou signal are complete. If neither the first Beidou signal nor the second Beidou signal is complete, the signal judgment module 105 sends an abnormal signal instruction to the main control module 106; the incomplete Beidou signal means that both the first Beidou signal and the second Beidou signal are not successfully received; after obtaining the abnormal signal instruction, the main control module 106 sends a signal transmission interrupt instruction to the Beidou module 101, so that the Beidou module 101 no longer sends a GPS signal to the GPS module 102; the main control module 106 is also used to send a start command signal to the Beidou signal recording module 104, and the Beidou signal recording module 104 simulates the target Beidou signal according to the recorded Beidou signal, and converts the target Beidou signal into a third GPS signal; a Beidou signal recording module 104, further used to send the third GPS signal to the GPS module 102, so that the GPS module 102 sends the third GPS signal to the positioning module 103; the main control module 106 is provided with a timing module; the timing module is used to generate a time signal, and send the time signal to the positioning module 103, so that the processing module 1032 determines the position, speed and time information according to the third GPS signal and the time signal; the signal judgment module 105 re-detects that the Beidou module 101 receives a complete Beidou signal, and then sends a normal activation instruction to the main control module 106; the main control module 106 obtains the normal activation instruction and sends a start instruction to the Beidou module, so that the Beidou module 101 sends the GPS signal to the GPS module 102 again; the main control module 106 is also used to send a transmission interruption instruction to the Beidou signal recording module 104, so that the Beidou signal recording module 104 no longer sends the third GPS signal to the GPS module 102.

[0072] In summary, the embodiment of the utility model provides a satellite signal real-time synchronous conversion device, which obtains the Beidou signal through the Beidou module 101 and converts the Beidou signal into a GPS signal, and sends the GPS signal to the GPS module 102. The GPS module 102 selects and amplifies the received signal and divides it into multiple GPS signals. The GPS module 102 also sends the received signal to the positioning module 103 to generate position, speed and time information. The positioning module 103 sends the position, speed and time information to the main control module 106, and the main control module 106 sends the position, speed and time information to the communication module 107 for display. When the signal judgment module 105 detects that the signal received by the Beidou module 101 is incomplete, the connection between the Beidou module 101 and the GPS module 102 is closed, and the Beidou signal recording module 104 is enabled to connect with the GPS module 102 to generate a third GPS signal. The positioning module 103 generates the position, speed and time according to the third GPS signal and the time signal generated by the timing module, which not only improves the accuracy and reliability of positioning, but also enhances the stability and flexibility of the system, so that the device can provide continuous and accurate positioning services in various environments.

[0073] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A satellite signal real-time synchronous conversion device, characterized in that: It includes a Beidou module (101), a GPS module (102), a positioning module (103), a Beidou signal recording module (104), a signal judgment module (105), a main control module (106) and a communication module (107); The Beidou module (101) is respectively connected to the GPS module (102), the signal determination module (105) and the Beidou signal recording module (104); The GPS module (102) is respectively connected to the positioning module (103) and the Beidou signal recording module (104); The main control module (106) is respectively connected to the Beidou module (101), the GPS module (102), the positioning module (103), the Beidou signal recording module (104), the signal judgment module (105) and the communication module (107).

2. A satellite signal real-time synchronous conversion device according to claim 1, characterized in that: The Beidou module (101) comprises two Beidou signal receiving terminals; The Beidou module (101) is used to receive a first Beidou signal and a second Beidou signal through two Beidou signal receiving terminals, and send the first Beidou signal and the second Beidou signal to the Beidou signal recording module (104); The Beidou module (101), after receiving the first Beidou signal and the second Beidou signal, converts the first Beidou signal and the second Beidou signal into a first GPS signal and a second GPS signal; The Beidou module (101) is also used to send the first GPS signal and the second GPS signal to the GPS module (102).

3. A satellite signal real-time synchronous conversion device according to claim 2, characterized in that: The GPS module (102) comprises a GPS signal selection module (1021), a GPS signal amplification module (1022), and a GPS signal branching module (1023); The GPS signal selection module (1021) performs signal selection after receiving the first GPS signal and the second GPS signal, selects the signal with the strongest signal strength as the target signal, and sends the target signal to the GPS signal amplification module (1022); The GPS signal amplifying module (1022) acquires the target signal, amplifies the target signal to obtain an amplified target signal, and sends the amplified target signal to the GPS signal branching module (1023); The GPS signal splitting module (1023) acquires the amplified target signal and then performs signal splitting to obtain a plurality of GPS output signals; The GPS signal amplifying module (1022) is also used to send the target signal to the positioning module (103).

4. The satellite signal real-time synchronous conversion device according to claim 3, characterized in that: The positioning module (103) comprises a receiving module (1031) and a processing module (1032); The receiving module (1031) is used to obtain the target signal sent by the GPS signal amplifying module (1022), convert the target signal into an electrical signal, and then send it to the processing module (1032); The processing module (1032) is used to calculate the position, speed and time information after acquiring the electrical signal, and send the position, speed and time information to the main control module (106).

5. A satellite signal real-time synchronous conversion device according to claim 4, characterized in that: The main control module (106) obtains the position, speed and time information sent by the processing module (1032), and sends the position, speed and time information to the communication module (107).

6. A satellite signal real-time synchronous conversion device according to claim 4, characterized in that: The signal judgment module (105) is used to detect in real time whether the Beidou signal received by the Beidou module (101) is complete. If the received Beidou signal is complete, no operation is performed.

7. A satellite signal real-time synchronous conversion device according to claim 6, characterized in that: The signal judgment module (105) is used to detect in real time whether the Beidou signal received by the Beidou module (101) is complete. If it is detected that the received Beidou signal is incomplete, the signal judgment module (105) sends an abnormal signal instruction to the main control module (106); the incomplete Beidou signal means that both the first Beidou signal and the second Beidou signal are not successfully received; After acquiring the abnormal signal instruction, the main control module (106) sends a signal transmission interruption instruction to the Beidou module (101), so that the Beidou module (101) no longer sends a GPS signal to the GPS module (102); The main control module (106) is further used to send a start command signal to the Beidou signal recording module (104), and the Beidou signal recording module (104) simulates a target Beidou signal according to the recorded Beidou signal, and converts the target Beidou signal into a third GPS signal; The Beidou signal recording module (104) is further used to send the third GPS signal to the GPS module (102), so that the GPS module (102) sends the third GPS signal to the positioning module (103).

8. The satellite signal real-time synchronous conversion device according to claim 7, characterized in that: The main control module (106) is provided with a timing module; The timing module is used to generate a time signal and send the time signal to the positioning module (103), so that the processing module (1032) determines the position, speed and time information according to the third GPS signal and the time signal.

9. The satellite signal real-time synchronous conversion device according to claim 7, characterized in that: The signal judgment module (105) re-detects that the Beidou module (101) has received a complete Beidou signal, and then sends a normal activation instruction to the main control module (106); The main control module (106) sends a start instruction to the Beidou module (101) after acquiring the normal activation instruction, so that the Beidou module (101) re-sends the GPS signal to the GPS module (102); The main control module (106) is further used to send a transmission interruption instruction to the Beidou signal recording module (104), so that the Beidou signal recording module (104) no longer sends the third GPS signal to the GPS module (102).

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