Satellite positioning precision detection equipment and detection method

Abstract

The invention discloses a satellite positioning precision detection device and method, and relates to the field of satellite positioning detection, and the satellite positioning precision detection device comprises a receiving device, a signal receiver and a controller. The receiving device is used for receiving the positioning information and sending the positioning information to the signal receiver; the positioning information is a satellite navigation signal or a set virtual signal; the signal receiver is used for resolving the positioning information to obtain simulation position information; receiving real-time position information determined by a satellite positioning system in the tested terminal according to the positioning information; sending the simulated position information and the real-time position information to a controller; the controller is used for comparing the real-time position information with the simulation position information and determining whether the channel communication function of the satellite positioning system in the detected terminal is normal or not and whether the positioning precision meets the set requirement or not, detection of the satellite positioning precision is achieved, and the reliability of the satellite positioning system is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of satellite positioning detection, and in particular to a satellite positioning accuracy detection device and detection method. Background Art

[0002] With the widespread use of satellite positioning systems such as GPS around the world, various satellite positioning systems have high satellite positioning accuracy and can achieve search and positioning tasks quickly and accurately. However, satellite positioning systems still produce certain positioning errors. The main reasons for the positioning errors are as follows: (1) The inherent errors of satellite positioning systems for PXI architecture: Due to the limitations of satellite positioning algorithms, the satellite positioning system itself has certain system errors that are difficult to eliminate, so certain correction technologies are required; (2) Errors caused by data transmission: In the actual satellite positioning process, it is often the case that the positioning satellite cannot be found or the satellite signal is weak, or due to poor weather conditions and poor location, there are data errors in the transmission process, resulting in errors in the positioning results; (3) System errors of satellite positioning systems: Due to the limitations of design accuracy or as the use time increases, the satellite positioning system has certain system errors, resulting in a decrease in positioning accuracy.

[0003] The above reasons may cause the satellite positioning accuracy to decrease. In actual use, satellite positioning should be carried out in an open place as much as possible to avoid possible interference sources, and the positioning accuracy should be tested in time to ensure the reliability of the positioning system. However, in actual application, it is currently impossible to effectively judge the current satellite positioning accuracy and corresponding status, resulting in the reliability of the satellite positioning system cannot be guaranteed. Summary of the invention

[0004] The purpose of this application is to provide a satellite positioning accuracy detection device and detection method to realize the detection of satellite positioning accuracy and ensure the reliability of the satellite positioning system.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] In a first aspect, the present application provides a satellite positioning accuracy detection device, comprising: a receiving device, a signal receiver and a controller; the signal receiver is respectively connected to the receiving device, the controller and a satellite positioning system in a terminal under test;

[0007] The receiving device is used for:

[0008] Receiving positioning information, and sending the positioning information to the signal receiver; the positioning information is a satellite navigation signal or a set virtual signal;

[0009] The signal receiver is used for:

[0010] Solving the positioning information to obtain simulated position information;

[0011] Receiving real-time location information determined by a satellite positioning system in the terminal under test according to the positioning information;

[0012] sending the simulated position information and the real-time position information to the controller;

[0013] The controller is used to:

[0014] The real-time location information and the simulated location information are compared to determine whether the channel communication function of the satellite positioning system in the tested terminal is normal and whether the positioning accuracy meets the set requirements.

[0015] Optionally, the signal receiver comprises: a positioning information receiving interface, an RF front end, an ADC module, a data interface and a tracking solution module connected in sequence;

[0016] The positioning information receiving interface is used to receive the positioning information sent by the receiving device; the RF front end is used to power amplify and filter the positioning information to obtain processed positioning information; the ADC module is used to perform analog-to-digital conversion on the processed positioning information to obtain converted positioning information; the data interface is used to send the converted positioning information to the tracking and solving module; the tracking and solving module is used to capture, track and solve the converted positioning information to obtain analog position information.

[0017] Optionally, the satellite positioning accuracy detection device also includes: a power supply; the power supply is connected to the signal receiver; the power supply is used to power the signal receiver.

[0018] Optionally, the signal receiver is an OEMV-3 board.

[0019] Optionally, the controller is an embedded controller in a PXI system.

[0020] Optionally, the power supply is a programmable power supply in a PXI system.

[0021] Optionally, the receiving device is a receiving antenna.

[0022] In a second aspect, the present application provides a satellite positioning accuracy detection method, comprising:

[0023] Receiving positioning information; the positioning information is a satellite navigation signal or a set virtual signal;

[0024] Solving the positioning information to obtain simulated position information;

[0025] Receiving real-time location information determined by a satellite positioning system in the terminal under test according to the positioning information;

[0026] The real-time location information and the simulated location information are compared to determine whether the channel communication function of the satellite positioning system in the tested terminal is normal and whether the positioning accuracy meets the set requirements.

[0027] Optionally, solving the positioning information to obtain simulated position information specifically includes:

[0028] Performing power amplification and filtering processing on the positioning information to obtain processed positioning information;

[0029] Performing analog-to-digital conversion on the processed positioning information to obtain converted positioning information;

[0030] The converted positioning information is captured, tracked and solved to obtain simulated position information.

[0031] Optionally, comparing the real-time location information with the simulated location information to determine whether a channel communication function of a satellite positioning system in the tested terminal is normal and whether the positioning accuracy meets a set requirement specifically includes:

[0032] If the difference between the real-time location information and the simulated location information is less than a set threshold, it is determined that the channel communication function of the satellite positioning system in the terminal under test is normal and the positioning accuracy meets the set requirements.

[0033] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0034] The present application provides a satellite positioning accuracy detection device and detection method, which adopts a receiving device and a signal receiver to simulate the positioning information, and adopts a controller to compare the real-time position information and the simulated position information, so as to determine whether the channel communication function of the satellite positioning system in the tested terminal is normal and whether the positioning accuracy meets the set requirements. The present application realizes the detection of satellite positioning accuracy and ensures the reliability of the satellite positioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the structure of a satellite positioning accuracy detection device provided in one embodiment of the present application;

[0037] Figure 2 A physical product picture of the OEMV-3 board provided in one embodiment of the present application;

[0038] Figure 3 A schematic diagram of the structure of a signal receiver provided in one embodiment of the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0041] See also Figure 1 This embodiment provides a satellite positioning accuracy detection device, including: a receiving device, a signal receiver and a controller; the signal receiver is respectively connected to the receiving device, the controller and the satellite positioning system in the terminal under test.

[0042] The receiving device is used to: receive positioning information and send the positioning information to the signal receiver; the positioning information is a satellite navigation signal or a set virtual signal.

[0043] The signal receiver is used to: calculate the positioning information to obtain simulated position information; receive the real-time position information determined by the satellite positioning system in the terminal under test according to the positioning information; and send the simulated position information and the real-time position information to the controller. The real-time position information determined by the satellite positioning system in the terminal under test according to the positioning information can be a high-frequency signal such as GPS, BD, GLONASS, etc.

[0044] The controller is used to compare the real-time position information with the simulated position information to determine whether the channel communication function of the satellite positioning system in the tested terminal is normal and whether the positioning accuracy meets the set requirements.

[0045] In an exemplary embodiment, the signal receiver may use the fifth generation OEMV-3 board of NovAtel. This board has good positioning accuracy for the satellite positioning system, is applicable to a wide range of environments, and supports data communications such as RS232 and USB, and can be well integrated into the test system. The actual product of the OEMV-3 board is shown in the figure below. Figure 2 shown.

[0046] The following is a detailed introduction to the structure of the OEMV-3 board as a signal receiver. The functional implementation of the OEMV-3 board can be divided into two parts: hardware and software. The hardware part is mainly responsible for data processing and corresponding AD conversion; the software part is mainly responsible for the capture, tracking, and calculation of position information of positioning satellites. In the process of implementing the software function, it is necessary to cooperate with the API function defined by NovAtel for this type of board to implement it.

[0047] For details, see Figure 3 The signal receiver includes: a positioning information receiving interface, an RF front end, an ADC module, a data interface and a tracking solution module connected in sequence.

[0048] The positioning information receiving interface is used to receive the positioning information sent by the receiving device; the RF front end is used to power amplify and filter the positioning information to obtain processed positioning information; the ADC module is used to perform analog-to-digital conversion on the processed positioning information to obtain converted positioning information; the data interface is used to send the converted positioning information to the tracking and solving module; the tracking and solving module is used to capture, track and solve the converted positioning information to obtain analog position information.

[0049] The positioning information receiving interface, RF front end, ADC module, and data interface in this embodiment serve as the hardware part of the signal receiver, and the tracking and solution module serves as the software part of the signal receiver. The signal receiver ultimately realizes the solution of the current user's satellite positioning result, and the solution result is the simulated position information.

[0050] In an exemplary embodiment, the satellite positioning accuracy detection device further includes: a power supply; the power supply is connected to the signal receiver; the power supply is used to power the signal receiver.

[0051] In an exemplary embodiment, the controller is an embedded controller in a PXI system; and the power supply is a programmable power supply in the PXI system.

[0052] In an exemplary embodiment, the receiving device is a receiving antenna.

[0053] In an exemplary embodiment, since the OEMV-3 board is relatively small in size, it can be integrated into the redundant space inside the PXI chassis, making it easy to connect an embedded controller and a power supply, and to connect to a corresponding external receiving device.

[0054] In an exemplary embodiment, the terminal under test may be a mobile phone, etc. The satellite positioning system in the terminal under test is usually composed of four parts: a signal receiving antenna, an auxiliary power supply, a signal receiver, and a microprocessor. The signal receiving antenna receives positioning information, the auxiliary power supply supplies power to the positioning system, the signal receiver is responsible for parsing the corresponding positioning information, and the microprocessor is responsible for processing the parsed positioning information and calculating the current position information to obtain real-time position information.

[0055] The above embodiment provides a satellite positioning accuracy detection device for PXI architecture, which is expected to simulate satellite positioning signals and detect whether the channel communication function of the PXI architecture of the terminal under test is normal. Based on the existing embedded controller and programmable power supply in the PXI system, and combined with the test requirements of the object under test, through the hardware design scheme combined with the corresponding software interface provided by NotAtel, it is possible to simulate satellite positioning signals, detect whether the channel communication function of the device under test is normal, and detect whether the positioning accuracy meets the requirements.

[0056] This embodiment also provides a satellite positioning accuracy detection method, including:

[0057] (1) Receiving positioning information; the positioning information is a satellite navigation signal or a set virtual signal.

[0058] (2) The positioning information is solved to obtain simulated position information.

[0059] (3) Receive real-time location information determined by a satellite positioning system in the terminal under test based on the positioning information.

[0060] (4) Compare the real-time location information with the simulated location information to determine whether the channel communication function of the satellite positioning system in the terminal under test is normal and whether the positioning accuracy meets the set requirements.

[0061] In an exemplary embodiment, the positioning information is resolved to obtain simulated position information, specifically including: power amplifying and filtering the positioning information to obtain processed positioning information; performing analog-to-digital conversion on the processed positioning information to obtain converted positioning information; and capturing, tracking and resolving the converted positioning information to obtain simulated position information.

[0062] In an exemplary embodiment, the real-time location information and the simulated location information are compared to determine whether the channel communication function of the satellite positioning system in the terminal under test is normal and whether the positioning accuracy meets the set requirements, specifically including: if the difference between the real-time location information and the simulated location information is less than a set threshold, it is determined that the channel communication function of the satellite positioning system in the terminal under test is normal and the positioning accuracy meets the set requirements.

[0063] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A satellite positioning accuracy detection device, characterized in that: The satellite positioning accuracy detection device comprises: a receiving device, a signal receiver and a controller; the signal receiver is respectively connected to the receiving device, the controller and the satellite positioning system in the terminal under test; The receiving device is used for: Receiving positioning information, and sending the positioning information to the signal receiver; the positioning information is a satellite navigation signal or a set virtual signal; The signal receiver is used for: Solving the positioning information to obtain simulated position information; Receiving real-time location information determined by a satellite positioning system in the terminal under test according to the positioning information; sending the simulated position information and the real-time position information to the controller; The controller is used to: The real-time location information and the simulated location information are compared to determine whether the channel communication function of the satellite positioning system in the terminal under test is normal and whether the positioning accuracy meets the set requirements.

2. The satellite positioning accuracy detection device according to claim 1, characterized in that: The signal receiver comprises: a positioning information receiving interface, an RF front end, an ADC module, a data interface and a tracking solution module connected in sequence; The positioning information receiving interface is used to receive the positioning information sent by the receiving device; the RF front end is used to power amplify and filter the positioning information to obtain processed positioning information; the ADC module is used to perform analog-to-digital conversion on the processed positioning information to obtain converted positioning information; the data interface is used to send the converted positioning information to the tracking and solving module; the tracking and solving module is used to capture, track and solve the converted positioning information to obtain analog position information.

3. The satellite positioning accuracy detection device according to claim 1, characterized in that: The satellite positioning accuracy detection device also includes: a power supply; the power supply is connected to the signal receiver; the power supply is used to supply power to the signal receiver.

4. The satellite positioning accuracy detection device according to claim 1, characterized in that: The signal receiver is an OEMV-3 board.

5. The satellite positioning accuracy detection device according to claim 1, characterized in that: The controller is an embedded controller in a PXI system.

6. The satellite positioning accuracy detection device according to claim 3, characterized in that: The power supply is a programmable power supply in a PXI system.

7. The satellite positioning accuracy detection device according to claim 1, characterized in that: The receiving device is a receiving antenna.

8. A satellite positioning accuracy detection method, characterized in that: The satellite positioning accuracy detection method is used for the satellite positioning accuracy detection device described in any one of claims 1 to 7, and the satellite positioning accuracy detection method comprises: Receiving positioning information; the positioning information is a satellite navigation signal or a set virtual signal; Solving the positioning information to obtain simulated position information; Receiving real-time location information determined by a satellite positioning system in the terminal under test according to the positioning information; The real-time location information and the simulated location information are compared to determine whether the channel communication function of the satellite positioning system in the terminal under test is normal and whether the positioning accuracy meets the set requirements.

9. The satellite positioning accuracy detection method according to claim 8, characterized in that: Solving the positioning information to obtain simulated position information specifically includes: Performing power amplification and filtering processing on the positioning information to obtain processed positioning information; Performing analog-to-digital conversion on the processed positioning information to obtain converted positioning information; The converted positioning information is captured, tracked and solved to obtain the simulated position information.

10. The satellite positioning accuracy detection method according to claim 8, characterized in that: Comparing the real-time location information with the simulated location information to determine whether the channel communication function of the satellite positioning system in the tested terminal is normal and whether the positioning accuracy meets the set requirements specifically includes: If the difference between the real-time location information and the simulated location information is less than a set threshold, it is determined that the channel communication function of the satellite positioning system in the terminal under test is normal and the positioning accuracy meets the set requirements.

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