Quantum navigation and time service combined system

Abstract

The utility model provides a quantum navigation and time service combined system. The quantum navigation and time service combined system comprises a clock unit and a navigation unit, wherein the clock unit is used for outputting clock signals to a carrier; the navigation unit is used for outputting navigation information to the carrier; the clock unit and the navigation unit are arranged on the carrier, and the clock unit is connected with the navigation unit; the quantum navigation and time service combined system provided by the utility model has clock time service and navigation functions at the same time, and can control the navigation unit through the clock unit, so that the overall accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quantum navigation and timing, in particular to a quantum navigation and timing combination system. Background Art

[0002] Quantum sensing technology uses quantum systems such as photons and atoms as media, and utilizes quantum effects to achieve ultra-high precision and sensitivity measurements of physical quantities that break through the constraints of the standard quantum limit, bringing new opportunities for breakthroughs in the traditional navigation, positioning and timing technology system based on space-time parameter measurement.

[0003] In the existing technology, in terms of quantum navigation, publication number CN115236681A discloses a three-dimensional positioning system and positioning method based on quantum entangled photon pairs; publication number CN114895243A discloses a two-dimensional plane positioning system and method based on quantum entangled light; in terms of quantum timing, publication number CN116224746A proposes a method for establishing a high-stability time base by integrating satellite and ground atomic clocks; however, the quantum navigation and quantum timing systems in the existing technology are separate and can only independently realize their respective functions, and cannot give full play to the advantages of both.

[0004] Therefore, a system that can combine quantum navigation and quantum timing is urgently needed. Utility Model Content

[0005] The purpose of this utility model is to provide a quantum navigation and timing combination system, which can solve the above technical problems;

[0006] The utility model provides a quantum navigation and timing combination system, comprising:

[0007] A clock unit for outputting a clock signal to the carrier and a navigation unit for outputting navigation information to the carrier;

[0008] The clock unit and the navigation unit are both arranged on the carrier, and the clock unit is connected to the navigation unit.

[0009] As a further technical solution, the clock unit includes:

[0010] A clock group and a first signal processing board, wherein the clock group is arranged on the first signal processing board.

[0011] As a further technical solution, the clock group includes:

[0012] A first clock for sending a first clock signal, provided on a first signal processing board;

[0013] The second clock for sending a second clock signal is provided on the first signal processing board.

[0014] Preferably, the second clock is an atomic clock.

[0015] As a further technical solution, the first signal processing board includes: a first signal receiving and processing module, connected to the clock group; a first fusion module, connected to the first signal receiving and processing module; and a first output module, connected to the first fusion module.

[0016] As a further technical solution, the navigation unit includes:

[0017] A gyroscope for sending angular velocity information and an accelerometer for sending acceleration information, both of which are arranged on the second signal processing board; and the gyroscope is connected to the first clock.

[0018] Preferably, the gyroscope is a three-axis gyroscope.

[0019] As a further technical solution, the second signal processing board includes: a second signal receiving and processing module, connected to the clock group; a second fusion module, connected to the second signal receiving and processing module; and a second output module, connected to the second fusion module.

[0020] The technical solution of the present invention is to place a clock unit and a navigation unit on a carrier at the same time, and generate a clock signal through the clock unit and send it to the carrier and send the clock signal to the navigation unit at the same time to control the navigation unit action; generate navigation information through the navigation unit and send the generated navigation information to the carrier; realize the combination of timing and navigation into the same solution; compared with the existing technology, the present invention has both clock timing and navigation functions, and can control the navigation unit through the clock unit, thereby improving the overall accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural block diagram of a quantum navigation and timing combination system of the utility model;

[0023] Figure 2 This is a structural block diagram of another embodiment of a quantum navigation and timing combination system of the utility model;

[0024] Description of reference numerals:

[0025] 100 - clock unit; 101 - first clock; 102 - second clock; 103 - first signal processing board; 200 - navigation unit; 201 - gyroscope; 202 - accelerometer; 203 - second signal processing board; 300 - carrier. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] like Figure 1-2 As shown, the utility model provides a quantum navigation and timing combination system, comprising:

[0030] The clock unit 100 and the navigation unit 200 output a clock signal to the carrier 300 through the clock unit 100, and output navigation information to the carrier 300 through the navigation unit 200; wherein, the clock unit 100 and the navigation unit 200 are both arranged on the carrier 300, and the clock unit 100 is connected to the navigation unit 200; in actual use, the clock unit 100 generates a clock signal and sends it to the carrier 300, and simultaneously sends the clock signal to the navigation unit 200 to operate and control the operation of the navigation unit 200; the navigation unit 200 generates navigation information and sends the generated navigation information to the carrier 300;

[0031] like Figure 2 As shown, the clock unit 100 includes: a clock group and a first signal processing board 103, and the clock group is arranged on the first signal processing board 103; the clock signal is generated by the clock group and sent to the first signal processing board 103, and after being processed by the first signal processing board 103, the processed signal is sent to the carrier 300 and the navigation unit 200 respectively; specifically, in the present utility model, the clock group includes a first clock 101 and a second clock 102, and the first clock 101 and the second clock 102 are both arranged on the first signal processing board 103; in the present utility model, the first clock 101 signal is sent by the first clock 101, and the second clock 102 signal is sent by the second clock 102. Specifically, the first clock 101 signal is A low-frequency ultra-high-precision clock signal, specifically, the frequency of the first clock 101 signal is 1 Hz, and the accuracy is no more than 200 ns; the second clock 102 signal is a high-frequency ultra-high-precision clock signal, specifically the frequency of the second clock 102 signal is 4000 Hz, and the accuracy is no more than 1 us; after the first clock 101 signal and the second clock 102 signal are sent to the first signal processing board 103, a high-frequency ultra-high-precision clock signal is output through signal processing and clock signal fusion algorithm, and the ultra-high frequency ultra-high-precision clock signal is sent to the carrier 300 and the navigation unit 200 respectively, and the navigation unit 200 is controlled to perform an action. In the present utility model, preferably, the first clock 101 is a cold atomic clock, and the second clock 102 is a chip-level atomic clock;

[0032] In addition, in the present invention, the first signal processing board 103 includes: a first signal receiving and processing module connected to the clock group; a first fusion module connected to the first signal receiving and processing module; a first output module connected to the first fusion module; the first signal receiver processing module receives the first clock 101 signal and the second clock 102 signal, and performs signal processing on the first clock 101 signal and the second clock 102 signal; specifically, the signal processing is to check the synchronization headers of the first clock 101 signal and the second clock 102 signal, and synchronize the first clock 101 signal and the second clock 102 signal; for ease of understanding, an example is given: setting the first clock 1 The frequency of the 01 signal is 1 Hz. In the first second, only one signal has a synchronization header of AA1BB. The frequency of the second clock 102 signal is 4000 Hz. In the first second, there are 4000 signals with synchronization headers of BB0.00025AA, BB0.00050AA, and so on to BB1AA. During signal processing, the synchronization headers of the first clock 101 signal and the second clock 102 signal are identified as matching. When AA1BB appears in the first clock 101 signal and BB1AA appears in the second clock 102 signal, the two signals are aligned to the same time, completing synchronization. This is defined as the completion of processing of the first clock 101 signal and the second clock 102 signal.

[0033] The processed first clock signal 101 and the second clock signal 102 are transmitted to the first fusion module, which fuses the first clock signal 101 and the second clock signal 102 and outputs a high-frequency, ultra-high-precision clock signal to the first output module. The first output module transmits the fused signal in the form of pulses to the carrier 300. The output high-frequency, ultra-high-precision clock signal has a frequency of 4000 Hz and an accuracy of no more than 200 ns.

[0034] It should be noted that, in the present invention, the first signal receiving and processing module adopts the FPGA chip model XC6SLX16-2FTG256I4873 of Xilinx; the first fusion module adopts the DSP chip model TMS320C6657CZHA25 of TI; the first signal output module adopts the serial port chip model MAX232 of MAXIM; and the first fusion module has a built-in weighted averaging method to fuse the first clock 101 signal and the second clock 102 signal. Since the existing technology is used, the present invention does not further limit this.

[0035] like Figure 2As shown, the navigation unit 200 includes a gyroscope 201 and an accelerometer 202, both of which are arranged on the second signal processing board 203, and the gyroscope 201 is connected to the first clock 101; angular velocity information is sent through the gyroscope 201; acceleration information is sent through the accelerometer 202; in the present utility model, the preferred gyroscope 201 is a three-axis micro-gyroscope 201, specifically a SERF atomic gyroscope, and the accuracy is preferably 0.0001° / s; the accelerometer 202 is a micro-accelerometer 202, specifically a MEMS accelerometer 202, and the accuracy is preferably 10ug; through the first signal processing board 103 The processed high-frequency and high-precision clock signal will be sent to the micro-gyroscope 201, and the servo control method will be directly used to control the action of the micro-gyroscope 201, thereby improving the measurement accuracy of the micro-gyroscope 201 and further realizing the combination of timing and navigation. The servo control in the present invention adopts the existing technology and is therefore not further limited. After the micro-gyroscope 201 is actuated, the measured three-axis angular velocity information will be sent to the second signal processing board 203, and the micro-accelerometer 202 measures the three-axis acceleration signal of the carrier 300 and sends it to the second signal processing board 203. The second signal processing board 203 performs signal processing and inertial signal fusion processing and outputs ultra-high-precision navigation information.

[0036] In addition, in the present invention, the second signal processing board 203 includes: a second signal receiving and processing module connected to the clock group; a second fusion module connected to the second signal receiving and processing module; a second output module connected to the second fusion module; specifically, the second signal receiving and processing module obtains the signals of the gyroscope 201 and the accelerometer 202 and then performs high-frequency wave to remove high-frequency interference; and sends the processed signals to the second fusion module, and fuses the obtained signals in the second fusion module, and outputs the navigation signal containing position, speed and attitude to the second output module, and outputs the obtained signal through the second output module; in the present invention, the second signal The signal receiving and processing module adopts the FPGA chip model XC6SLX16-2FTG256I4873 of Xilinx; the second fusion module adopts the DSP chip model TMS320C6657CZHA25 of TI; the second signal output module adopts the serial port chip model MAX232 of MAXIM; wherein, the second fusion module has a built-in Kalman filter estimation method to fuse the fall-off signal and the accelerometer 202 signal. Since the existing technology is adopted, the present invention does not further limit this; it should be noted that the position accuracy of the navigation signal is 1mm, the velocity accuracy is 1mm / s, and the attitude accuracy is 5 arc seconds.

[0037] In the present invention, the quantum navigation timing combination system can simultaneously provide high-frequency ultra-high precision timing and progress navigation, and the high-frequency ultra-high precision timing control navigation unit 200 can obtain ultra-high precision navigation, thereby improving the accuracy of the arrangement.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quantum navigation and timing combined system, characterized in that: include: A clock unit (100) for outputting a clock signal to a carrier (300) and a navigation unit (200) for outputting navigation information to the carrier (300); The clock unit (100) and the navigation unit (200) are both arranged on a carrier (300), and the clock unit (100) is connected to the navigation unit (200).

2. The quantum navigation and timing combined system according to claim 1, characterized in that: The clock unit (100) comprises: A clock group and a first signal processing board (103), wherein the clock group is arranged on the first signal processing board (103).

3. The quantum navigation timing combined system according to claim 2, characterized in that: The clock group includes: A first clock (101) for sending a first clock (101) signal, arranged on the first signal processing board (103); The second clock (102) for sending a second clock (102) signal is provided on the first signal processing board (103).

4. The quantum navigation and timing combined system according to claim 3, characterized in that: The first clock (101) is a cold atomic clock, and the second clock (102) is an atomic clock.

5. The quantum navigation and timing combined system according to claim 2, characterized in that: The first signal processing board (103) comprises: A first signal receiving and processing module connected to the clock group; a first fusion module connected to the first signal receiving and processing module; The first output module is connected to the first fusion module.

6. The quantum navigation and timing combined system according to claim 3, characterized in that: The navigation unit (200) comprises: A gyroscope (201) for sending angular velocity information and an accelerometer (202) for sending acceleration information, wherein the gyroscope (201) and the accelerometer (202) are both arranged on a second signal processing board (203); and the gyroscope (201) is connected to the first clock (101).

7. The quantum navigation and timing combined system according to claim 6, characterized in that: The gyroscope (201) is a three-axis gyroscope (201).

8. The quantum navigation and timing combined system according to claim 6, characterized in that: The second signal processing board (203) comprises: A second signal receiving and processing module connected to the clock group; a second fusion module connected to the second signal receiving and processing module; The second output module is connected to the second fusion module.

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