A method for adaptive switching of operating modes in a closed-loop fiber optic gyroscope control circuit

Abstract

This invention belongs to the field of closed-loop fiber optic gyroscope control, specifically relating to a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit. Through serial communication between a host computer and the closed-loop fiber optic gyroscope control circuit, it enables control of the number of light intensity signal sampling points, the first closed-loop gain, the second closed-loop gain, the first closed-loop start delay, the second closed-loop start delay, the initial values ​​of the X-axis second closed-loop, the Y-axis second closed-loop, the Z-axis second closed-loop, the scale factor, the pulse equivalent and pulse width, and mode verification control parameters. By adding the control parameters stored in EEPROM and comparing them with preset standard values, the operating mode of the closed-loop fiber optic gyroscope control circuit is adaptively determined, adapting to different production stages of gyroscope control electronics and achieving verification purposes. Without modifying the programmable logic device software of the closed-loop fiber optic control circuit, it can quickly read, write, and verify control parameters, improving efficiency and fault tolerance.

Description

Technical Field

[0001] This invention belongs to the field of closed-loop fiber optic gyroscope control electronics technology, specifically relating to a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit. Background Technology

[0002] Closed-loop fiber optic gyroscopes, as high-precision inertial navigation instruments based on the Sagnac effect, have gained widespread attention and are gradually becoming the main instruments in inertial navigation and strategic applications due to their numerous advantages, such as large dynamic range, no moving or wearing parts, high sensitivity, stable and reliable manufacturing process, low cost, and suitability for mass production. However, to fully utilize the performance advantages of closed-loop fiber optic gyroscopes, appropriate control parameter matching of their control circuits is necessary during the production and debugging process to ensure that the closed-loop fiber optic gyroscope meets the expected performance requirements.

[0003] In the existing production process of closed-loop fiber optic gyroscopes, the control circuit of the closed-loop fiber optic gyroscope first needs to undergo environmental stress screening to eliminate defective circuit boards. Due to the need for test signals during the screening test phase, a dedicated programmable logic device (PLD) software suitable for the screening mode of the closed-loop fiber optic control circuit needs to be loaded during the screening process. After the screening test, the PLD software for normal operation needs to be reloaded. Since the PLD state is changed after screening, the effectiveness of the screening test process is weakened. Simultaneously, during normal operation, due to differences in fiber loop length, Y-waveguide initial values, and angular rate data output protocols among each closed-loop fiber optic gyroscope, the control circuit of the closed-loop fiber optic gyroscope needs to have its control parameters adjusted and matched. Currently, the adjustment of the control parameters of the closed-loop fiber optic gyroscope control circuit is carried out by professional debugging personnel selecting from different pre-generated PLD software with different parameters. After the software is loaded, the rationality of the selected software is determined based on the output; if it is unsuitable, the PLD software with other parameters needs to be reloaded until the software version corresponding to the most suitable parameters is loaded. The operation is complex and time-consuming, and the use of multiple versions of programmable logic device software in the field is not conducive to process management, resulting in increased costs, reduced efficiency, and low fault tolerance. Therefore, how to solve the problems of existing technologies and perform simple, efficient, and accurate debugging and matching of closed-loop fiber optic gyroscope control parameters has become a problem that needs to be solved in practical engineering. Summary of the Invention

[0004] Purpose of the invention: To provide a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit, which aims to solve the problems of loading, debugging, and matching control parameters of the complex and inefficient programmable logic device for closed-loop fiber optic gyroscopes in the existing production process. It can complete the selection, debugging, and delivery of the gyroscope control circuit with only one loading of the programmable logic device software, accurately achieve the matching of closed-loop fiber optic gyroscope control circuit parameters, improve work efficiency, and reduce costs.

[0005] Technical solution:

[0006] A method for adaptive switching of operating modes in a closed-loop fiber optic gyroscope control circuit includes:

[0007] Step 1: When it is necessary to change the control parameters of the closed-loop fiber optic control circuit, the host computer and the closed-loop fiber optic gyroscope control circuit communicate via serial port through the parameter read / write module, and send specific data write instructions to complete the writing of control parameter AK in the EEPROM memory.

[0008] Step 2: Each time the closed-loop fiber optic gyroscope control circuit is powered on, it will sequentially read the control parameters AK stored in the EEPROM memory; and then add the read control parameters AK sequentially, and compare the sum of the control parameters AK with the preset standard value.

[0009] If the sum of the control parameters AK is equal to the preset standard value, then the closed-loop fiber optic gyroscope is determined to be working in the working mode.

[0010] If the sum of the control parameters AK is not equal to the preset standard value, the closed-loop fiber optic gyroscope is determined to be working in screening mode.

[0011] Step 3: The closed-loop fiber optic gyroscope is operating in screening mode. At this time, the closed-loop fiber optic gyroscope control circuit runs the programmable controller software in screening mode and prompts that the closed-loop fiber optic gyroscope control circuit is operating in screening mode. In screening mode, if the host computer sends a specific data writing instruction through the parameter read / write module, the closed-loop fiber optic gyroscope control circuit exits the screening mode and performs reading and writing of control parameters.

[0012] Step 4: The closed-loop fiber optic gyroscope operates in working mode. At this time, the closed-loop fiber optic gyroscope control circuit runs the programmable controller software in working mode and prompts that the closed-loop fiber optic gyroscope control circuit is operating in working mode; and sequentially writes the control parameter AK into the closed-loop fiber optic gyroscope control logic to complete the modification of the closed-loop fiber optic gyroscope control parameters. In working mode, the closed-loop fiber optic gyroscope control circuit outputs the angular rate values ​​of the XYZ axes; in working mode, if the host computer sends a specific data write command through the parameter read / write module, the closed-loop fiber optic gyroscope control circuit exits working mode and enters debug mode, and prompts that the closed-loop fiber optic gyroscope control circuit is operating in debug mode.

[0013] Step 5: In debug mode, the closed-loop fiber optic gyroscope control circuit outputs monitoring parameters to achieve parameterized monitoring of the gyroscope's working process.

[0014] Furthermore, in step 1, the data writing instruction is a user-defined trigger instruction for writing data into the EEPROM memory.

[0015] Furthermore, the control parameter AK is used to control the number of light intensity signal sampling points, the first closed-loop gain, the second closed-loop gain, the first closed-loop start-up delay, the second closed-loop start-up delay, the initial value of the second closed-loop on the X-axis, the initial value of the second closed-loop on the Y-axis, the initial value of the second closed-loop on the Z-axis, the scaling factor, the pulse equivalent and pulse width, and the mode verification.

[0016] Furthermore, the preset standard value is the verification value used by the defined closed-loop fiber optic gyroscope control circuit to determine whether it is operating in screening mode or working mode.

[0017] Furthermore, in step 5, the monitoring parameters are key parameters in the data demodulation process of the user-defined closed-loop fiber optic gyroscope control circuit.

[0018] Furthermore, it also includes: when a user wants to view the control parameters currently stored in the EEPROM memory, they can send a specific data read command in the host computer's serial port transceiver tool to complete the reading and viewing of the current control parameters.

[0019] Furthermore, the data read instruction is a user-defined trigger instruction to complete the reading of data stored in the EEPROM memory.

[0020] Furthermore, the data write instruction and the data read instruction contain multiple byte parameters and use a serial communication baud rate different from that used when the gyroscope is working normally to prevent false triggering.

[0021] Further, step 1 specifically includes:

[0022] Step 11: Control the number of light intensity signal sampling points of the closed-loop fiber optic gyroscope control circuit by writing the first parameter A through the host computer, and store the control parameter A in the first address bit of the EEPROM memory;

[0023] Step 12: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the second parameter B through the host computer to control the first closed-loop gain of the closed-loop fiber optic gyroscope control circuit, and store the control parameter B in the second address bit of the EEPROM memory.

[0024] Step 13: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the third parameter C through the host computer to control the second closed-loop gain of the closed-loop fiber optic gyroscope control circuit, and store the control parameter C in the third address bit of the EEPROM memory.

[0025] Step 14: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the fourth parameter D through the host computer to control the first closed-loop start delay of the closed-loop fiber optic gyroscope control circuit, and store the control parameter D in the fourth address bit of the EEPROM memory.

[0026] Step 15: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the fifth parameter E through the host computer to control the second closed-loop start delay of the closed-loop fiber optic gyroscope control circuit, and store the control parameter E in the fifth address bit of the EEPROM memory.

[0027] Step 16: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the sixth parameter F through the host computer to control the initial value of the second closed loop of the X-axis of the closed-loop fiber optic gyroscope control circuit, and store the control parameter F in the sixth address bit of the EEPROM memory.

[0028] Step 17: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the seventh parameter G through the host computer to control the initial value of the second closed loop of the Y-axis of the closed-loop fiber optic gyroscope control circuit, and store the control parameter G in the seventh address bit of the EEPROM memory.

[0029] Step 18: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the eighth parameter H through the host computer to control the initial value of the second closed loop of the Z-axis of the closed-loop fiber optic gyroscope control circuit, and store the control parameter H in the eighth address bit of the EEPROM memory.

[0030] Step 19: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the ninth parameter I through the host computer to control the scaling factor of the closed-loop fiber optic gyroscope control circuit, and store the control parameter I in the ninth address bit of the EEPROM memory.

[0031] Step 20: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the tenth parameter J through the host computer to control the pulse equivalent and pulse width of the closed-loop fiber optic gyroscope control circuit, and store the control parameter J in the tenth address bit of the EEPROM memory.

[0032] Step 21: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Verify the mode of the closed-loop fiber optic gyroscope control circuit by writing the eleventh parameter K through the host computer, and store the control parameter K in the eleventh address bit of the EEPROM memory.

[0033] Beneficial effects:

[0034] 1. This invention provides a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit based on process parameter separation. Through serial communication between a host computer and the closed-loop fiber optic gyroscope control circuit, it achieves convenient and efficient control of the number of light intensity signal sampling points, first closed-loop gain, second closed-loop gain, first closed-loop start delay, second closed-loop start delay, X-axis second closed-loop initial value, Y-axis second closed-loop initial value, Z-axis second closed-loop initial value, scale factor, pulse equivalent and pulse width, and mode verification control parameters. By adding the control parameters stored in EEPROM and comparing them with preset standard values, the operating mode switching of the closed-loop fiber optic gyroscope control circuit can be adaptively realized, adapting to different production stages of gyroscope control electronics and achieving the purpose of verification.

[0035] 2. This invention provides a method for adaptive switching of the working mode of a closed-loop fiber optic gyroscope control circuit based on process parameter separation. It does not require changes to the control logic of the closed-loop fiber optic control circuit. The method is simple and efficient, and can achieve rapid reading, writing and verification of control parameters with very low computing power requirements. The verification results are accurate and objective, improving efficiency and fault tolerance.

[0036] 3. This method is universal and suitable for different types of engineering tests. Attached Figure Description

[0037] To more clearly illustrate the technical solution of this invention, the testing method of this invention will be briefly described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this invention.

[0038] Figure 1This is a schematic diagram of a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit based on process parameter separation. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention.

[0040] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] In some embodiments, the functions of redefining control parameters include: number of light intensity signal sampling points, first closed-loop gain, second closed-loop gain, first closed-loop start-up delay, second closed-loop start-up delay, X-axis second closed-loop initial value, Y-axis second closed-loop initial value, Z-axis second closed-loop initial value, scaling factor, pulse equivalent and pulse width, and mode verification.

[0042] Figure 1 This is a schematic diagram of a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit based on process parameter separation.

[0043] like Figure 1 As shown, the method may include the following steps:

[0044] S1: The host computer and the closed-loop fiber optic gyroscope control circuit communicate via serial port through the parameter read / write module to complete the read / write operations of data in the EEPROM memory. When the host computer reads data stored in the EEPROM memory, it needs to first write a specific data read instruction; when the host computer wants to write data to the EEPROM memory, it needs to first send a specific data write instruction. The data read instruction is a user-defined trigger instruction to complete reading data stored in the EEPROM memory; the data write instruction is a user-defined trigger instruction to write data to the EEPROM memory; the trigger instruction consists of multiple bytes of user-defined parameters and uses a serial communication baud rate different from the normal operating baud rate of the gyroscope to prevent false triggering.

[0045] S2: When a user wants to view the control parameters currently stored in the EEPROM memory, they can send a specific data read command in the host computer's serial port transceiver tool to complete the reading and viewing of the current control parameters.

[0046] S3: When it is necessary to change the working mode and control parameters of the closed-loop fiber optic control circuit, a specific data write command must be sent in the host computer serial port transceiver tool. At this time, the change of working mode and control parameters can be completed. Then, jump to step S4.

[0047] S4: The number of light intensity signal sampling points of the closed-loop fiber optic gyroscope control circuit is controlled by writing the first parameter A through the host computer, and the control parameter A is stored in the first address bit of the EEPROM memory;

[0048] S5: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial port. The host computer writes the second parameter B to control the first closed-loop gain of the closed-loop fiber optic gyroscope control circuit and stores the control parameter B in the second address bit of the EEPROM memory.

[0049] S6: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the third parameter C to control the second closed-loop gain of the closed-loop fiber optic gyroscope control circuit, and stores the control parameter C in the third address bit of the EEPROM memory.

[0050] S7: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the fourth parameter D to control the first closed-loop start delay of the closed-loop fiber optic gyroscope control circuit and stores the control parameter D in the fourth address bit of the EEPROM memory.

[0051] S8: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the fifth parameter E to control the second closed-loop start delay of the closed-loop fiber optic gyroscope control circuit and stores the control parameter E in the fifth address bit of the EEPROM memory.

[0052] S9: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the sixth parameter F to control the initial value of the second closed loop of the X-axis of the closed-loop fiber optic gyroscope control circuit, and stores the control parameter F in the sixth address bit of the EEPROM memory.

[0053] S10: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the seventh parameter G to control the initial value of the second closed loop of the Y-axis of the closed-loop fiber optic gyroscope control circuit, and stores the control parameter G in the seventh address bit of the EEPROM memory.

[0054] S11: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the eighth parameter H to control the initial value of the second closed loop of the Z-axis of the closed-loop fiber optic gyroscope control circuit, and stores the control parameter H in the eighth address bit of the EEPROM memory.

[0055] S12: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial port. The host computer writes the ninth parameter I to control the scale factor of the closed-loop fiber optic gyroscope control circuit and stores the control parameter I in the ninth address bit of the EEPROM memory.

[0056] S13: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial communication. The host computer writes the tenth parameter J to control the pulse equivalent and pulse width of the closed-loop fiber optic gyroscope control circuit, and stores the control parameter J in the tenth address bit of the EEPROM memory.

[0057] S14: The host computer communicates with the closed-loop fiber optic gyroscope control circuit via serial port. The host computer writes the eleventh parameter K to verify the mode of the closed-loop fiber optic gyroscope control circuit and stores the control parameter K in the eleventh address bit of the EEPROM memory.

[0058] S15: Each time the closed-loop fiber optic gyroscope control circuit is powered on, it will sequentially read the control parameters AK stored in the EEPROM memory, and add the read control parameters AK sequentially. The sum of the control parameters AK is compared with a preset standard value. If the sum of the control parameters AK is equal to the preset standard value, it is determined that the closed-loop fiber optic gyroscope is working in the working mode, and the process jumps to step S17. If the sum of the control parameters AK is not equal to the preset standard value, it is determined that the closed-loop fiber optic gyroscope is working in the filtering mode, and the process jumps to step S16. The preset standard value is a defined verification value for determining whether the closed-loop fiber optic gyroscope control circuit is working in the filtering mode or the working mode.

[0059] S16: The closed-loop fiber optic gyroscope is operating in screening mode. At this time, the closed-loop fiber optic gyroscope control circuit runs the programmable controller software in screening mode and indicates that the closed-loop fiber optic gyroscope control circuit is operating in screening mode. In screening mode, if the host computer sends a specific data write command through the parameter read / write module, the closed-loop fiber optic gyroscope control circuit exits screening mode and performs control parameter read / write. The specific data write command contains multiple bytes of parameters and uses a different serial communication baud rate than when the gyroscope is operating normally to prevent false triggering.

[0060] S17: The closed-loop fiber optic gyroscope is in working mode. At this time, the closed-loop fiber optic gyroscope control circuit runs the programmable controller software in working mode and prompts that the closed-loop fiber optic gyroscope control circuit is in working mode; and sequentially writes the control parameter AK into the closed-loop fiber optic gyroscope control logic to complete the modification of the closed-loop fiber optic gyroscope control parameters. In working mode, the closed-loop fiber optic gyroscope control circuit outputs the angular rate values ​​of the XYZ axes.

[0061] S18: In working mode, if the host computer sends a specific data write command through the parameter read / write module, the closed-loop fiber optic gyroscope control circuit exits working mode and enters debug mode, indicating that the closed-loop fiber optic gyroscope control circuit is operating in debug mode. In debug mode, the closed-loop fiber optic gyroscope control circuit outputs monitoring parameters to achieve parameterized monitoring of the gyroscope's working process; the monitoring parameters are user-defined key parameters in the data demodulation process of the closed-loop fiber optic gyroscope control circuit.

[0062] Furthermore, during the above operation steps, the prompt information can be used to determine whether the closed-loop fiber optic gyroscope is operating in screening mode, working mode, or debugging mode.

[0063] In summary, this invention provides a method for adaptive switching of the operating mode of a closed-loop fiber optic gyroscope control circuit based on parameter separation. Through serial communication between a host computer and the closed-loop fiber optic gyroscope control circuit, it achieves convenient and efficient control of the number of light intensity signal sampling points, first closed-loop gain, second closed-loop gain, first closed-loop start delay, second closed-loop start delay, X-axis second closed-loop initial value, Y-axis second closed-loop initial value, Z-axis second closed-loop initial value, scale factor, pulse equivalent and pulse width, and mode verification control parameters. By adding the control parameters stored in EEPROM and comparing them with preset standard values, the operating mode of the closed-loop fiber optic gyroscope control circuit can be adaptively determined, adapting to different production stages of gyroscope control electronics and achieving the purpose of verification. It does not require modification of the programmable logic device software of the closed-loop fiber optic control circuit, making the method simple and efficient. It can quickly read, write, and verify control parameters with minimal computing power requirements, providing accurate and objective verification results, improving efficiency and fault tolerance. This method is versatile and suitable for different types of engineering tests.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention.

Claims

1. A method for adaptive switching of operating modes in a closed-loop fiber optic gyroscope control circuit, characterized in that, include: Step 1: When it is necessary to change the control parameters of the closed-loop fiber optic control circuit, the host computer and the closed-loop fiber optic gyroscope control circuit communicate via serial port through the parameter read / write module, and send specific data write commands to complete the writing of control parameters AK in the EEPROM memory. The control parameters AK are used to control the number of light intensity signal sampling points, the first closed-loop gain, the second closed-loop gain, the first closed-loop start delay, the second closed-loop start delay, the initial value of the second closed-loop on the X-axis, the initial value of the second closed-loop on the Y-axis, the initial value of the second closed-loop on the Z-axis, the scale factor, the pulse equivalent and pulse width, and the mode verification. Step 2: Each time the closed-loop fiber optic gyroscope control circuit is powered on, it will sequentially read the control parameters AK stored in the EEPROM memory; and then add the read control parameters AK sequentially, and compare the sum of the control parameters AK with the preset standard value. If the sum of the control parameters AK is equal to the preset standard value, the closed-loop fiber optic gyroscope is determined to be working in the working mode; otherwise, the closed-loop fiber optic gyroscope is determined to be working in the screening mode. Step 3: The closed-loop fiber optic gyroscope is operating in screening mode. At this time, the closed-loop fiber optic gyroscope control circuit runs the programmable controller software in screening mode and prompts that the closed-loop fiber optic gyroscope control circuit is operating in screening mode. In screening mode, if the host computer sends a specific data writing instruction through the parameter read / write module, the closed-loop fiber optic gyroscope control circuit exits the screening mode and performs reading and writing of control parameters. Step 4: The closed-loop fiber optic gyroscope is in working mode. At this time, the closed-loop fiber optic gyroscope control circuit runs the programmable controller software in working mode and prompts that the closed-loop fiber optic gyroscope control circuit is in working mode; and sequentially writes the control parameter AK into the closed-loop fiber optic gyroscope control logic to complete the modification of the closed-loop fiber optic gyroscope control parameters. In working mode, the closed-loop fiber optic gyroscope control circuit outputs the angular rate values ​​of the XYZ axes. In working mode, if the host computer sends a specific data write command through the parameter read / write module, the closed-loop fiber optic gyroscope control circuit will exit working mode and enter debug mode, and will indicate that the closed-loop fiber optic gyroscope control circuit is working in debug mode. Step 5: In debug mode, the closed-loop fiber optic gyroscope control circuit outputs monitoring parameters to achieve parameterized monitoring of the gyroscope's working process.

2. The method according to claim 1, characterized in that, In step 1, the data writing instruction is a user-defined trigger instruction for writing data into the EEPROM memory.

3. The method according to claim 2, characterized in that, The preset standard value is the verification value used by the defined closed-loop fiber optic gyroscope control circuit to determine whether it is operating in screening mode or working mode.

4. The method according to claim 3, characterized in that, In step 5, the monitoring parameters are key parameters in the data demodulation process of the user-defined closed-loop fiber optic gyroscope control circuit.

5. The method according to claim 4, characterized in that, Also includes: When a user wants to view the control parameters currently stored in the EEPROM memory, they can send a specific data read command through the host computer's serial port transceiver tool to read and view the current control parameters.

6. The method according to claim 5, characterized in that, The data read instruction is a user-defined trigger instruction to complete the reading of data stored in the EEPROM memory.

7. The method according to claim 6, characterized in that, The data write instruction and the data read instruction contain multiple byte parameters and use a different serial communication baud rate than when the gyroscope is working normally to prevent false triggering.

8. The method according to claim 7, characterized in that, Step 1 specifically includes: Step 11: Control the number of light intensity signal sampling points of the closed-loop fiber optic gyroscope control circuit by writing the first parameter A through the host computer, and store the control parameter A in the first address bit of the EEPROM memory; Step 12: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the second parameter B through the host computer to control the first closed-loop gain of the closed-loop fiber optic gyroscope control circuit, and store the control parameter B in the second address bit of the EEPROM memory. Step 13: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the third parameter C through the host computer to control the second closed-loop gain of the closed-loop fiber optic gyroscope control circuit, and store the control parameter C in the third address bit of the EEPROM memory. Step 14: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the fourth parameter D through the host computer to control the first closed-loop start delay of the closed-loop fiber optic gyroscope control circuit, and store the control parameter D in the fourth address bit of the EEPROM memory. Step 15: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the fifth parameter E through the host computer to control the second closed-loop start delay of the closed-loop fiber optic gyroscope control circuit, and store the control parameter E in the fifth address bit of the EEPROM memory. Step 16: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the sixth parameter F through the host computer to control the initial value of the second closed loop of the X-axis of the closed-loop fiber optic gyroscope control circuit, and store the control parameter F in the sixth address bit of the EEPROM memory. Step 17: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the seventh parameter G through the host computer to control the initial value of the second closed loop of the Y-axis of the closed-loop fiber optic gyroscope control circuit, and store the control parameter G in the seventh address bit of the EEPROM memory. Step 18: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the eighth parameter H through the host computer to control the initial value of the second closed loop of the Z-axis of the closed-loop fiber optic gyroscope control circuit, and store the control parameter H in the eighth address bit of the EEPROM memory. Step 19: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the ninth parameter I through the host computer to control the scaling factor of the closed-loop fiber optic gyroscope control circuit, and store the control parameter I in the ninth address bit of the EEPROM memory. Step 20: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Write the tenth parameter J through the host computer to control the pulse equivalent and pulse width of the closed-loop fiber optic gyroscope control circuit, and store the control parameter J in the tenth address bit of the EEPROM memory. Step 21: Communicate with the closed-loop fiber optic gyroscope control circuit via serial port through the host computer. Verify the mode of the closed-loop fiber optic gyroscope control circuit by writing the eleventh parameter K through the host computer, and store the control parameter K in the eleventh address bit of the EEPROM memory.

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