On-line adjusting system and method for eigenfrequency, parameter adjusting method, equipment and medium

Abstract

The embodiment of the invention discloses an intrinsic frequency on-line adjusting system and method, a parameter adjusting method, equipment and a medium, and the device comprises at least one electromagnetic coil, an electromagnetic coil drive circuit, an optical fiber loop and a light beam processing module. The electromagnetic coil driving circuit is electrically connected with the electromagnetic coil and is used for providing target driving current for the electromagnetic coil so as to change the magnetic field of the electromagnetic coil through the target driving current; the electromagnetic coil is used for adjusting the refractive index of the optical fiber loop through a generated magnetic field; the optical fiber loop penetrates through the at least one electromagnetic coil, and the tail ends of extension branches at the two ends of the optical fiber loop are connected with the light beam processing module and used for maintaining the target eigenfrequency of the target equipment based on the current refractive index. According to the technical scheme provided by the embodiment of the invention, the on-line adjustment of the eigenfrequency of the optical fiber ring can be realized in a full-temperature range, so that the environmental adaptability of equipment is improved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of automation control technology, in particular to an intrinsic frequency online adjustment system, method, device, medium, program, intrinsic frequency online adjustment device and intrinsic frequency online adjustment system parameter adjustment method. BACKGROUND

[0002] The intrinsic frequency is a core parameter of the device, and in the case of fixed light source wavelength, the value thereof is uniquely determined by the length of the core sensitive component. Modulation signal frequency, modulation depth, sampling point number and other device modulation parameters are directly related to the intrinsic frequency, and therefore the accuracy of the intrinsic frequency plays a key role in the performance of the device.

[0003] In the device debugging phase, the conventional process is to measure the intrinsic frequency of the core sensitive component at room temperature, to set the line debugging parameters based on the value, and to solidify the parameters after debugging is completed. However, this mode does not take into account the environmental temperature fluctuations in actual application, and the temperature variation span of the device working environment can reach 100℃. In this process, the equivalent length of the core sensitive component will change with temperature, and thus the intrinsic frequency deviates from the initial set value. When the intrinsic frequency changes too much, a series of negative effects such as distortion of the device output signal, decrease of modulation efficiency, increase of residual modulation error, and deterioration of closed-loop stability leading to poor dynamic response will be caused. SUMMARY

[0004] Embodiments of the present application provide an intrinsic frequency online adjustment system, method, device, medium, program, intrinsic frequency online adjustment device and intrinsic frequency online adjustment system parameter adjustment method, which can realize online adjustment of the intrinsic frequency of the fiber coil in the full temperature range, and thus improve the environmental adaptability of the device.

[0005] According to an aspect of the present application, an intrinsic frequency online adjustment system is provided, comprising at least one electromagnetic coil, an electromagnetic coil driving circuit, a fiber coil and a light beam processing module; wherein:

[0006] The electromagnetic coil driving circuit is electrically connected with the electromagnetic coil, and is configured to provide a target driving current to the electromagnetic coil, so as to change the magnetic field of the electromagnetic coil through the target driving current;

[0007] The electromagnetic coil is configured to adjust the refractive index of the fiber coil through the generated magnetic field;

[0008] The fiber coil passes through at least one of the electromagnetic coils, and the ends of the two extended branches of the fiber coil are connected with the light beam processing module, and are configured to maintain the target intrinsic frequency of the target device based on the current refractive index;

[0009] The light beam processing module is configured to split the target optical signal and adjust the phases of the two split optical beams, and perform beam combination on the two split optical beams returned by the optical fiber loop in a reverse propagation direction.

[0010] According to another aspect of the present application, there is provided an intrinsic frequency online adjustment device, comprising the intrinsic frequency online adjustment system according to any one of the embodiments of the present application, and further comprising a light source module, a photodetector and a modulation-demodulation circuit.

[0011] The light source module is connected to the light beam processing module in the intrinsic frequency online adjustment system, and is configured to generate a target optical signal and transmit the target optical signal to the light beam processing module.

[0012] The photodetector is connected to the light beam processing module, and is configured to receive an interference optical signal output by the light beam processing module, convert the interference optical signal into a target electrical signal, and transmit the target electrical signal to the modulation-demodulation circuit.

[0013] The modulation-demodulation circuit is electrically connected to the photodetector, and is configured to demodulate the target electrical signal.

[0014] According to another aspect of the present application, there is provided an intrinsic frequency online adjustment method, applied to the intrinsic frequency online adjustment system according to any one of the embodiments of the present application, comprising:

[0015] Obtaining a current environmental temperature and a temperature-driven current mapping relationship;

[0016] Querying a target driven current matched with the current environmental temperature according to the temperature-driven current mapping relationship;

[0017] Adjusting a current driven current of an electromagnetic coil driving circuit in the intrinsic frequency online adjustment system to the target driven current, so that an intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged.

[0018] According to another aspect of the present application, there is provided a parameter adjustment method for an intrinsic frequency online adjustment system, the method being configured to adjust parameters of the intrinsic frequency online adjustment system according to any one of the embodiments of the present application, and the method comprising:

[0019] Obtaining a target frequency value of a test device intrinsic frequency and temperature-current correlation transformation test data of a non-circuit structure in the intrinsic frequency online adjustment system;

[0020] Establishing a mapping relationship between the target frequency value of the intrinsic frequency and the temperature-current correlation transformation test data, to obtain a temperature-driven current mapping relationship corresponding to the test device;

[0021] The temperature-driven current mapping relationship is used for online adjustment of the eigenfrequency of the target device.

[0022] According to another aspect of the present application, there is provided an eigenfrequency online adjustment device configured in the eigenfrequency online adjustment system according to any of the embodiments of the present application, comprising:

[0023] A first data acquisition module is configured to acquire a current environmental temperature and a temperature-driven current mapping relationship;

[0024] A target-driven current determination module is configured to query a target-driven current matched with the current environmental temperature according to the temperature-driven current mapping relationship;

[0025] A current-driven current adjustment module is configured to adjust a current-driven current of an electromagnetic coil driving circuit in the eigenfrequency online adjustment system to the target-driven current, so that the eigenfrequency of the eigenfrequency online adjustment system remains unchanged.

[0026] According to another aspect of the present application, there is provided an eigenfrequency online adjustment system parameter adjustment device, which is configured to adjust parameters of the eigenfrequency online adjustment system according to any of the embodiments of the present application, and the device comprises:

[0027] A second data acquisition module is configured to acquire a target frequency value of a test device eigenfrequency and temperature-current correlation conversion test data of a non-circuit structure in the eigenfrequency online adjustment system;

[0028] A temperature-driven current mapping relationship determination module is configured to establish a mapping relationship between the target frequency value of the eigenfrequency and the temperature-current correlation conversion test data, so as to obtain a temperature-driven current mapping relationship corresponding to the test device;

[0029] The temperature-driven current mapping relationship is used for online adjustment of the eigenfrequency of the target device.

[0030] According to another aspect of the present application, there is provided an electronic device, comprising:

[0031] at least one processor; and

[0032] a memory in communication connection with the at least one processor; wherein

[0033] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the eigenfrequency online adjustment method or the eigenfrequency online adjustment system parameter adjustment method according to any of the embodiments of the present application.

[0034] According to another aspect of the present application, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement the eigen frequency online adjustment method or the eigen frequency online adjustment system parameter adjustment method according to any of the embodiments of the present application.

[0035] According to another aspect of the present application, there is also provided a computer program product comprising a computer program for implementing the eigen frequency online adjustment method or the eigen frequency online adjustment system parameter adjustment method according to any of the embodiments of the present application when executed by a processor.

[0036] The embodiment of the present application realizes online adjustment of the intrinsic frequency of the optical fiber coil by arranging at least one electromagnetic coil, an electromagnetic coil driving circuit, an optical fiber coil and a light beam processing module in the intrinsic frequency online adjustment system. The electromagnetic coil driving circuit is electrically connected with the electromagnetic coil and is configured to provide a target driving current to the electromagnetic coil to change the magnetic field of the electromagnetic coil through the target driving current. The electromagnetic coil is configured to adjust the refractive index of the optical fiber coil through the generated magnetic field. Meanwhile, the optical fiber coil passes through the at least one electromagnetic coil, and the ends of the two extended branches of the optical fiber coil are connected with the light beam processing module, which is configured to maintain the target intrinsic frequency of the target device based on the current refractive index. The light beam processing module is configured to perform beam splitting processing on the target light signal and adjust the phases of the two split light beams, and is also configured to perform beam combining processing on the two split light beams returned by the optical fiber coil in the reverse direction. Further, the intrinsic frequency online adjustment device can be constructed based on the intrinsic frequency online adjustment system. The intrinsic frequency online adjustment device further comprises a light source module, a photodetector and a modulation and demodulation circuit. The light source module is connected with the light beam processing module in the intrinsic frequency online adjustment system and is configured to generate the target light signal and transmit the target light signal to the light beam processing module. The photodetector is connected with the light beam processing module and is configured to receive the interference light signal output by the light beam processing module and convert the interference light signal into a target electrical signal, and is also configured to transmit the target electrical signal to the modulation and demodulation circuit. The modulation and demodulation circuit is electrically connected with the photodetector and is configured to demodulate the target electrical signal. Further, the intrinsic frequency online adjustment method is realized based on the intrinsic frequency online adjustment system. The method comprises obtaining the current environmental temperature and the temperature driving current mapping relationship, and querying the target driving current matched with the current environmental temperature according to the temperature driving current mapping relationship. After the target driving current is determined, the current driving current of the electromagnetic coil driving circuit in the intrinsic frequency online adjustment system is adjusted to the target driving current, so that the intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged. Before the intrinsic frequency online adjustment is realized, the intrinsic frequency online adjustment system is adjusted by using the intrinsic frequency online adjustment system parameter adjustment method. The method comprises obtaining the target frequency value of the test device intrinsic frequency and the temperature current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system, establishing the mapping relationship between the target frequency value of the intrinsic frequency and the temperature current correlation conversion test data, obtaining the temperature driving current mapping relationship corresponding to the test device, and adjusting the intrinsic frequency of the target device according to the temperature driving current mapping relationship. The above scheme solves the problem that the intrinsic frequency of the optical fiber coil is easily affected by the environmental temperature and drifts in the prior art, and can realize online adjustment of the intrinsic frequency of the optical fiber coil in the full temperature range, thereby improving the environmental adaptability of the device.

[0037] It is to be understood that the details described in this section are not intended to identify key or critical elements of the embodiments of the application or to limit the scope of the application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0039] Figure 1 is a schematic diagram of an intrinsic frequency online adjustment system provided by an embodiment of the present application;

[0040] Figure 2 is a structural schematic diagram of a solid-core polarization maintaining photonic crystal fiber provided by the embodiment one of the present application;

[0041] Figure 3 is a structural schematic diagram of a light beam processing module provided by the embodiment one of the present application;

[0042] Figure 4 is a schematic diagram of an intrinsic frequency online adjustment device provided by an embodiment two of the present application;

[0043] Figure 5 is a schematic diagram of a fiber-optic gyroscope provided by the embodiment two of the present application;

[0044] Figure 6 is a flow chart of an intrinsic frequency online adjustment method provided by an embodiment three of the present application;

[0045] Figure 7 is a flow chart of a parameter adjustment method of an intrinsic frequency online adjustment system provided by an embodiment four of the present application;

[0046] Figure 8 is a schematic diagram of an intrinsic frequency online adjustment device provided by an embodiment five of the present application;

[0047] Figure 9 is a schematic diagram of a parameter adjustment device of an intrinsic frequency online adjustment system provided by an embodiment six of the present application;

[0048] Figure 10 is a structural schematic diagram of an electronic device provided by an embodiment seven of the present application. DETAILED DESCRIPTION

[0049] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the protection scope of the present application.

[0050] It should be noted that the terms "first", "second" and "target" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0051] Embodiment one

[0052] Figure 1 is a schematic diagram of an intrinsic frequency online adjustment system provided by the embodiment one of the present application. The structure of the intrinsic frequency online adjustment system 100 includes at least one electromagnetic coil 110, an electromagnetic coil driving circuit 120, an optical fiber ring 130 and an optical beam processing module 140; wherein:

[0053] The electromagnetic coil driving circuit 120 is electrically connected with the electromagnetic coil 110, for providing a target driving current to the electromagnetic coil 110, so as to change the magnetic field of the electromagnetic coil 110 through the target driving current.

[0054] The target driving current can be generated by the electromagnetic coil driving circuit 120, and is used to ensure that the intrinsic frequency of the optical fiber ring is maintained at the target intrinsic frequency.

[0055] In the embodiment of the present application, the electromagnetic coil driving circuit 120 is electrically connected with the at least one electromagnetic coil 110. The electromagnetic coil driving circuit 120 can provide a target driving current to the at least one electromagnetic coil 110, so that the magnetic field generated by the electromagnetic coil 110 can change with the change of the size of the target driving current. It can be understood that when the intrinsic frequency online adjustment system 100 includes multiple electromagnetic coils 110, the multiple electromagnetic coils 110 are electrically connected with the electromagnetic coil driving circuit 120 in a series manner.

[0056] The electromagnetic coil 110 is used to adjust the refractive index of the fiber coil 130 by the generated magnetic field.

[0057] The change of environmental temperature will cause the change of the intrinsic frequency of the fiber coil, and the root cause is that the temperature fluctuation causes the change of the light propagation time in the fiber coil. Therefore, the compensation of the intrinsic frequency is essentially to adjust the light propagation time in the coil. Under the premise of fixed fiber length, this goal can be achieved by adjusting the effective refractive index of the light in the fiber, and finally the online dynamic adjustment of the intrinsic frequency is realized.

[0058] Specifically, when the electromagnetic coil driving circuit 120 changes the magnetic field of the electromagnetic coil 110 by the target driving current, the electromagnetic coil 110 can also adjust the refractive index of the fiber coil 130 by the generated magnetic field.

[0059] It should be noted that, in order to avoid the influence of the magnetic field generated by the electromagnetic coil 110 on the rest of the online intrinsic frequency adjustment system 100, a magnetic shielding structure needs to be sleeved outside the electromagnetic coil 110 to avoid magnetic field leakage.

[0060] Figure 2 is a structural schematic diagram of a solid-core polarization maintaining photonic crystal fiber provided by an embodiment of the present application. The polarization maintaining photonic crystal fiber has a porous structure, and a functional material can be filled therein to adjust the light guiding characteristics thereof.

[0061] Optionally, the fiber coil 130 can adopt a solid-core polarization maintaining photonic crystal fiber as shown in Figure 2 The outer part 201 is a fiber cladding part, the inner part 203 is a fiber core, and the circular structure 202 is an air hole which can be filled with a functional material. It should be noted that, Figure 2 This is only an example of the fiber structure in the fiber coil, and the embodiment of the present application does not limit the specific structure and size of the photonic crystal fiber. The filled functional material must be a material whose refractive index is sensitive to a physical field, i.e., a physical field sensitive optical material, such as a magnetic fluid material, and the embodiment of the present application does not limit the specific type of the physical field sensitive optical material. Therefore, the air hole inside the fiber coil 130 can be filled with a physical field sensitive optical material with a set length.

[0062] Magnetic fluid is a stable colloid formed by dispersing nano-sized magnetic particles in a carrier, and its refractive index can be regulated by changing the external magnetic field. Based on this characteristic, the magnetic fluid material can be filled in the two ends of the photonic crystal fiber ring, and the electromagnetic coil is configured to apply a magnetic field. When the temperature change causes the intrinsic frequency of the fiber ring to shift, the strength of the magnetic field is changed by adjusting the driving current of the electromagnetic coil, thereby regulating the refractive index of the magnetic fluid material, and finally changing the effective refractive index of the fiber core. The time of light passing through the fiber will be adjusted with the change of the effective refractive index, so as to realize the accurate compensation and dynamic regulation of the intrinsic frequency of the fiber ring.

[0063] The fiber ring 130 passes through at least one electromagnetic coil 110, and the ends of the two ends of the fiber ring 130 extend the branches and are connected with the light beam processing module 140 for maintaining the target intrinsic frequency of the target device based on the current refractive index.

[0064] Wherein, the target device can be a device to be subjected to online adjustment of intrinsic frequency. Exemplarily, the target device can include but is not limited to a fiber gyroscope or a fiber ring cavity temperature sensor, etc., and the embodiments of the present application do not limit the specific type of the target device. The target intrinsic frequency can be the intrinsic frequency that the target device needs to keep unchanged. The current refractive index can be the refractive index of the fiber ring 130 under the current target driving current.

[0065] Specifically, the fiber ring 130 can pass through at least one electromagnetic coil 110, and the ends of the two ends of the fiber ring 130 extend the branches and are connected with the light beam processing module 140. The fiber ring 130 can adjust its refractive index through the magnetic field generated by the electromagnetic coil 110, so as to maintain the target intrinsic frequency of the target device based on the current refractive index.

[0066] The light beam processing module 140 is used for splitting processing of a target optical signal and adjusting the phases of the two split optical signals; and the light beam processing module 140 is also used for combining the two split optical signals returned by the fiber ring 130 in reverse propagation.

[0067] Wherein, the target optical signal can be an optical signal transmitted externally to the light beam processing module 140.

[0068] Specifically, the light beam processing module 140 can split process the received target optical signal, and divide the target optical signal into two optical signals with equal power, so as to avoid subsequent signal distortion or phase adjustment deviation caused by power difference, and provide stable signal source guarantee for closed-loop control. After obtaining the two optical signals with equal power, the light beam processing module 140 can adjust the phases of the two optical signals, so as to realize closed-loop feedback and dynamic adjustment of signal transmission. The light beam processing module 140 can also combine the two split optical signals returned by the fiber ring 130 in reverse propagation, so as to obtain an interference optical signal.

[0069] In an optional embodiment of the present application, the light beam processing module 140 can comprise a fiber beam splitter 141 and a waveguide modulator 142; wherein: the fiber beam splitter 141 is connected with the waveguide modulator 142, for performing power attenuation processing on the target optical signal to obtain a first target optical signal, and transmitting the first target optical signal to the waveguide modulator 142; the waveguide modulator 142 is connected with the ends of the two extended branches of the fiber loop 130, for performing beam splitting processing on the first target optical signal, adjusting the phases of the clockwise split light and the counterclockwise split light obtained by beam splitting, and transmitting the clockwise split light and the counterclockwise split light to the fiber loop 130; the waveguide modulator 142 is also used for performing beam combining processing on the clockwise split light and the counterclockwise split light returned by the fiber loop 130 in reverse propagation, and transmitting the interference optical signal after the beam combining processing to the fiber beam splitter 141.

[0070] In the present application, the first target optical signal can be an optical signal obtained by performing power attenuation processing on the target optical signal by the fiber beam splitter 141. The clockwise split light can be a light beam propagating in the clockwise direction along the fiber loop 130 after the beam splitting processing by the waveguide modulator 142. The counterclockwise split light can be a light beam propagating in the counterclockwise direction along the fiber loop 130 after the beam splitting processing by the waveguide modulator 142. The interference optical signal can be an optical signal obtained by performing beam combining processing on the clockwise split light and the counterclockwise split light returned by the fiber loop 130 in reverse propagation.

[0071] Figure 3 is a structural schematic diagram of a light beam processing module provided by an embodiment of the present application. As shown in the present application, the light beam processing module 140 can comprise but is not limited to a fiber beam splitter 141 and a waveguide modulator 142, and the present application does not limit the specific devices included in the light beam processing module. For example, the fiber beam splitter 141 can comprise but is not limited to a polarization maintaining fiber beam splitter, and the waveguide modulator 142 can comprise but is not limited to a Y waveguide modulator. Figure 3

[0072] The fiber beam splitter 141 and the waveguide modulator 142 are connected by an optical fiber. The fiber beam splitter 141 can perform power attenuation processing on the received target optical signal to obtain a first target optical signal, and then transmit the first target optical signal to the waveguide modulator 142.

[0073] ​The waveguide modulator 142 is connected with the ends of the two extended branches of the fiber loop 130 respectively, can perform beam splitting processing on the first target optical signal, and accurately adjust the phases of the clockwise split light and the counterclockwise split light obtained by beam splitting. After the phase adjustment is completed, the waveguide modulator 142 can transmit the clockwise split light along the clockwise direction of the fiber loop 130 and transmit the counterclockwise split light along the counterclockwise direction of the fiber loop 130.

[0074] After the clockwise split light and the counterclockwise split light are transmitted through the fiber loop 130, the clockwise split light and the counterclockwise split light can propagate reversely along the original path and return to the waveguide modulator 142. Further, the waveguide modulator 142 can perform beam combining processing on the clockwise split light and the counterclockwise split light returned reversely by using the phase difference between the clockwise split light and the counterclockwise split light, and transmit the interference optical signal obtained after the beam combining processing to the fiber beam splitter 141.

[0075] The embodiment of the present application realizes online adjustment of the eigenfrequency of the fiber loop by arranging at least one electromagnetic coil, an electromagnetic coil driving circuit, a fiber loop and a light beam processing module in the eigenfrequency online adjustment system. The electromagnetic coil driving circuit is electrically connected with the electromagnetic coil and is used to provide a target driving current to the electromagnetic coil to change the magnetic field of the electromagnetic coil through the target driving current. The electromagnetic coil is used to adjust the refractive index of the fiber loop through the generated magnetic field. Meanwhile, the fiber loop passes through the at least one electromagnetic coil, and the ends of the two extended branches of the fiber loop are connected with the light beam processing module to maintain the target eigenfrequency of the target device based on the current refractive index. The light beam processing module is used to perform beam splitting processing on the target optical signal and adjust the phases of the two split lights on one hand, and is used to perform beam combining processing on the two split lights returned reversely by the fiber loop on the other hand. The above-mentioned scheme solves the problem that the eigenfrequency of the fiber loop is easily affected by the environmental temperature and drifts in the prior art, can realize online adjustment of the eigenfrequency of the fiber loop in the full temperature range, and further improves the environmental adaptability of the device.

[0076] Embodiment two

[0077] Figure 4 is a schematic diagram of an eigenfrequency online adjustment device provided by the embodiment two of the present application. The structure of the eigenfrequency online adjustment device 200 includes: an eigenfrequency online adjustment system 100, a light source module 210, a photodetector 220 and a modulation and demodulation line 230; wherein:

[0078] The light source module 210 is connected with the light beam processing module 140 in the eigenfrequency online adjustment system 100, is used to generate a target optical signal, and transmit the target optical signal to the light beam processing module 140.

[0079] In the embodiment of the present application, the eigenfrequency online adjustment device 200 can include, but is not limited to, the eigenfrequency online adjustment system 100, the light source module 210, the photodetector 220, the modulation-demodulation circuit 230, and the like. The embodiment of the present application does not limit the specific devices included in the eigenfrequency online adjustment device 200. For example, the eigenfrequency online adjustment device 200 can include, but is not limited to, a fiber-optic gyroscope or a fiber-optic ring cavity temperature sensor, as long as there is a need for eigenfrequency online adjustment. The embodiment of the present application does not limit the specific type of the eigenfrequency online adjustment device 200.

[0080] Figure 5 is a schematic diagram of a fiber-optic gyroscope provided in the second embodiment of the present application. In a specific example, as shown in Figure 5 , the fiber-optic gyroscope includes the light source module 210, the photodetector 220, the modulation-demodulation circuit 230, the fiber-optic beam splitter 141, the waveguide modulator 142, two electromagnetic coils 110, the electromagnetic coil driving circuit 120, and the fiber-optic ring 130.

[0081] In the eigenfrequency online adjustment device 200, the light source module 210 is connected to the beam processing module 140 in the eigenfrequency online adjustment system 100 through an optical fiber. The light source module 210 can generate a target optical signal and transmit the target optical signal to the beam processing module 140. For example, the light source module 210 can include, but is not limited to, an ASE (Amplified Spontaneous Emission) light source, and the like. The embodiment of the present application does not limit the specific devices included in the light source module 210.

[0082] The photodetector 220 is connected to the beam processing module 140 and is configured to receive an interference optical signal output by the beam processing module 140, convert the interference optical signal into a target electrical signal, and transmit the target electrical signal to the modulation-demodulation circuit 230. The modulation-demodulation circuit 230 is electrically connected to the photodetector 220 and is configured to demodulate the target electrical signal.

[0083] The target electrical signal can be an electrical signal converted from the interference optical signal.

[0084] Specifically, the photoelectric detector 220 is connected with the light beam processing module 140 through an optical fiber, and the photoelectric detector 220 is electrically connected with the modulation and demodulation circuit 230. The photoelectric detector 220 can receive the interference light signal output by the light beam processing module 140, and convert the interference light signal into a target electric signal. Further, the photoelectric detector 220 can transmit the target electric signal to the modulation and demodulation circuit 230. The modulation and demodulation circuit 230 can demodulate the received target electric signal. For example, assuming that the intrinsic frequency online adjustment device is an optical fiber gyroscope, the target electric signal is an electric signal converted from the rotation speed information carried by the interference light signal.

[0085] The embodiment of the present application realizes online adjustment of the intrinsic frequency of the device by arranging the intrinsic frequency online adjustment system, the light source module, the photoelectric detector and the modulation and demodulation circuit in the intrinsic frequency online adjustment device. The light source module is connected with the light beam processing module in the intrinsic frequency online adjustment system, and is used to generate a target light signal and transmit the target light signal to the light beam processing module. The photoelectric detector is connected with the light beam processing module, and is used to receive the interference light signal output by the light beam processing module and convert the interference light signal into a target electric signal, and is also used to transmit the target electric signal to the modulation and demodulation circuit. The modulation and demodulation circuit is electrically connected with the photoelectric detector, and is used to demodulate the target electric signal. The above-mentioned scheme solves the problem that the intrinsic frequency of the fiber coil is easily affected by the ambient temperature and drifts in the prior art, and can realize online adjustment of the intrinsic frequency of the fiber coil in the full temperature range, thereby improving the environmental adaptability of the device.

[0086] Embodiment three

[0087] Figure 6 is a flowchart of an intrinsic frequency online adjustment method provided by the third embodiment of the present application. The embodiment can be applied to the case of adjusting the intrinsic frequency of the intrinsic frequency online adjustment system online with the change of the ambient temperature. The method can be executed by the intrinsic frequency online adjustment system, and can be realized by software and / or hardware, and can be integrated in an electronic device, which can be the intrinsic frequency online adjustment system. Correspondingly, as shown in Figure 6 the method includes the following operations:

[0088] S310, obtaining a current ambient temperature and a temperature driving current mapping relationship.

[0089] The current ambient temperature can be the temperature of the working environment of the intrinsic frequency online adjustment system. The temperature driving current mapping relationship can be the corresponding relationship between the ambient temperature and the driving current in the electromagnetic coil driving circuit.

[0090] In the embodiment of the present application, in order to realize online adjustment of the intrinsic frequency with the change of the ambient temperature, first, the temperature driving current mapping relationship and the current ambient temperature can be obtained.

[0091] S320, querying the target driving current matched with the current ambient temperature according to the temperature driving current mapping relationship.

[0092] The target driving current can be the driving current matched with the current ambient temperature determined according to the temperature driving current mapping relationship.

[0093] Correspondingly, after obtaining the current ambient temperature and the temperature driving current mapping relationship, the target driving current matched with the current ambient temperature can be determined according to the temperature driving current mapping relationship.

[0094] S330, adjusting the current driving current of the electromagnetic coil driving circuit in the intrinsic frequency online adjustment system to the target driving current, so that the intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged.

[0095] The current driving current can be the driving current of the electromagnetic coil driving circuit at the current time.

[0096] Correspondingly, after querying the target driving current matched with the current ambient temperature according to the temperature driving current mapping relationship, the current driving current of the electromagnetic coil driving circuit in the intrinsic frequency online adjustment system can be dynamically adjusted and accurately calibrated to the target driving current. Through this closed-loop adjustment operation, the drift influence of the change of the ambient temperature on the intrinsic frequency of the intrinsic frequency online adjustment system can be compensated in real time, so that the intrinsic frequency of the intrinsic frequency online adjustment system is always stabilized in the preset standard value range.

[0097] As can be seen, the intrinsic frequency online adjustment method provided by the embodiment of the present application adjusts the magnetic field generated by the electromagnetic coil by changing the driving current of the electromagnetic coil, and then adjusts the intrinsic frequency of the optical fiber ring with the change of the magnetic field. This method not only realizes online dynamic adjustment of the intrinsic frequency, greatly improves the flexibility of the equipment, but also accurately matches the frequency demand under different working conditions, effectively guarantees the working stability of the optical fiber ring, and significantly reduces the maintenance cost and operation complexity of the equipment.

[0098] The intrinsic frequency online adjustment system provided in the embodiment of the present application can obtain the current environmental temperature and the temperature driving current mapping relationship, and query the target driving current matched with the current environmental temperature according to the temperature driving current mapping relationship. After the target driving current is determined, the current driving current of the electromagnetic coil driving circuit in the intrinsic frequency online adjustment system is adjusted to the target driving current, so that the intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged. The above scheme solves the problem that the intrinsic frequency of the fiber ring is easily affected by the environmental temperature and drifts in the prior art, and can realize online adjustment of the intrinsic frequency of the fiber ring in the full temperature range, thereby improving the environmental adaptability of the equipment.

[0099] Embodiment four

[0100] Figure 7 is a flowchart of a parameter adjustment method of an intrinsic frequency online adjustment system provided in the fourth embodiment of the present application. The embodiment can be applied to the case of determining the parameters of the intrinsic frequency online adjustment system to perform online adjustment of the intrinsic frequency of the intrinsic frequency online adjustment system. The method can be executed by an intrinsic frequency online adjustment system parameter adjustment device. The device can be realized in the form of software and / or hardware, and can generally be integrated in an electronic device. The electronic device can be a terminal device or a server device, as long as it can execute the parameter adjustment method of the intrinsic frequency online adjustment system. The specific type of the electronic device is not limited in the present application. Correspondingly, as shown in Figure 7 the method includes the following operations:

[0101] S410, obtaining a target frequency value of a test device intrinsic frequency and temperature-current correlation conversion test data of a non-circuit structure in the intrinsic frequency online adjustment system.

[0102] The test device can be an intrinsic frequency online adjustment device to be adjusted in parameters. The target frequency value can be an intrinsic frequency value expected to be achieved by the test device. The temperature-current correlation conversion test data can be test data of the corresponding relationship between the environmental temperature and the driving current in the test device when the test device maintains at a certain intrinsic frequency value.

[0103] In the embodiment of the present application, to realize the parameter adjustment of the intrinsic frequency online adjustment system, the non-circuit structure part in the intrinsic frequency online adjustment system can be put into a temperature box. By adjusting the temperature of the temperature box, the target frequency value of the test device intrinsic frequency and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system when the test device maintains at a certain intrinsic frequency value can be obtained.

[0104] In a specific example, the structure except the electromagnetic coil driving circuit and the modulation and demodulation circuit in the intrinsic frequency online adjustment device can be put into the temperature box.

[0105] In an optional embodiment of the present application, the target frequency value of the eigenfrequency of the test device can be obtained by changing the test drive current of the electromagnetic coil drive circuit in the eigenfrequency online adjustment system to obtain the eigenfrequency variation range of the test device, and determining the target frequency value of the eigenfrequency of the test device according to the eigenfrequency variation range of the test device.

[0106] The test drive current can be the drive current of the electromagnetic coil drive circuit in the eigenfrequency online adjustment system in the parameter adjustment process. The eigenfrequency variation range can be the numerical fluctuation range of the eigenfrequency of the test device with the change of the temperature of the oven.

[0107] In the embodiment of the present application, when obtaining the target frequency value of the eigenfrequency of the test device, the test drive current of the electromagnetic coil drive circuit in the eigenfrequency online adjustment system can be gradually increased at room temperature, for example, 25 degrees Celsius, until the eigenfrequency no longer changes, to obtain the eigenfrequency variation range of the test device. Further, a value can be selected from the eigenfrequency variation range of the test device as the target frequency value of the eigenfrequency of the test device, for example, the middle value of the eigenfrequency variation range can be selected as the target frequency value.

[0108] S420, a mapping relationship between the target frequency value of the eigenfrequency and the temperature-current correlation conversion test data of the non-circuit structure in the eigenfrequency online adjustment system is established to obtain the temperature drive current mapping relationship corresponding to the test device; wherein the temperature drive current mapping relationship is used for online adjustment of the eigenfrequency of the target device.

[0109] The target device can be the eigenfrequency online adjustment device after parameter adjustment.

[0110] Correspondingly, after obtaining the target frequency value of the eigenfrequency of the test device and the temperature-current correlation conversion test data of the non-circuit structure in the eigenfrequency online adjustment system, the temperature-current correlation conversion test data corresponding to the target frequency value of the eigenfrequency can be found and used as the temperature drive current mapping relationship corresponding to the test device. Further, the eigenfrequency online adjustment of the target device can be performed according to the temperature drive current mapping relationship.

[0111] Optionally, after obtaining the temperature drive current mapping relationship corresponding to the test device, the modulation signal frequency, modulation depth, and sampling point number of the test device can be determined according to the target frequency value of the eigenfrequency.

[0112] In an optional embodiment of the present application, before the mapping relationship between the target frequency value of the intrinsic frequency and the temperature-current correlation conversion test data is established, the method further comprises: in a case where the intrinsic frequency of the test device cannot be adjusted to the target frequency value, adjusting the filling length of the filling material in the fiber loop of the intrinsic frequency online adjustment system, and returning to perform the operation of obtaining the target frequency value of the intrinsic frequency of the test device and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system until it is determined that the intrinsic frequency of the test device is adjusted to the target frequency value.

[0113] Specifically, if the intrinsic frequency of the test device cannot be adjusted to the target frequency value, the filling length of the filling material in the fiber loop of the intrinsic frequency online adjustment system needs to be increased to expand the variation range of the intrinsic frequency of the test device, and the operation of obtaining the target frequency value of the intrinsic frequency of the test device and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system is returned to be performed until it is determined that the intrinsic frequency of the test device can be adjusted to the target frequency value.

[0114] The embodiment of the present application obtains the target frequency value of the intrinsic frequency of the test device and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system, establishes the mapping relationship between the target frequency value of the intrinsic frequency and the temperature-current correlation conversion test data, obtains the temperature driving current mapping relationship corresponding to the test device, and adjusts the intrinsic frequency of the target device according to the temperature driving current mapping relationship. The above-mentioned scheme solves the problem that the intrinsic frequency of the fiber loop is easily affected by the environmental temperature and drifts in the prior art, and can realize online adjustment of the intrinsic frequency of the fiber loop in the full temperature range, thereby improving the environmental adaptability of the device.

[0115] In the technical scheme of the present disclosure, the collection, storage, use, processing, transmission, provision and disclosure of user personal information comply with relevant laws and regulations and do not violate public order and good customs.

[0116] It should be noted that the related information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for display, analyzed data, etc.) involved in the present disclosure are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data comply with relevant laws, regulations and standards in the relevant region.

[0117] It should be noted that any arrangement and combination of the technical features among the above embodiments also belong to the protection scope of the present application.

[0118] Embodiment five

[0119] Figure 8is a schematic diagram of an intrinsic frequency online adjustment device provided by the fifth embodiment of the present application, as shown in the figure, the device is applied to an intrinsic frequency online adjustment system, and the device comprises a first data acquisition module 510, a target driving current determination module 520, and a current driving current adjustment module 530, wherein: Figure 8

[0120] The first data acquisition module 510 is configured to acquire a current environmental temperature and a temperature driving current mapping relationship.

[0121] The target driving current determination module 520 is configured to query a target driving current matched with the current environmental temperature according to the temperature driving current mapping relationship.

[0122] The current driving current adjustment module 530 is configured to adjust a current driving current of an electromagnetic coil driving circuit in the intrinsic frequency online adjustment system to the target driving current, so that the intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged.

[0123] The intrinsic frequency online adjustment system of the embodiment of the present application acquires a current environmental temperature and a temperature driving current mapping relationship, and queries a target driving current matched with the current environmental temperature according to the temperature driving current mapping relationship. After the target driving current is determined, the current driving current of the electromagnetic coil driving circuit in the intrinsic frequency online adjustment system is adjusted to the target driving current, so that the intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged. The above-mentioned scheme solves the problem that the intrinsic frequency of the optical fiber ring is easily affected by the environmental temperature and drifts in the prior art, and can realize online adjustment of the intrinsic frequency of the optical fiber ring in the full temperature range, thereby improving the environmental adaptability of the equipment.

[0124] The above-mentioned intrinsic frequency online adjustment device can execute the intrinsic frequency online adjustment method provided by any embodiment of the present application, has the corresponding function modules and beneficial effects of the execution method. Technical details not described in detail in the present embodiment can be referred to the intrinsic frequency online adjustment method provided by any embodiment of the present application.

[0125] Since the above-mentioned intrinsic frequency online adjustment device can execute the intrinsic frequency online adjustment method in the embodiments of the present application, based on the intrinsic frequency online adjustment method introduced in the embodiments of the present application, those skilled in the art can understand the specific implementation of the intrinsic frequency online adjustment device of the present embodiment and its various forms, so the intrinsic frequency online adjustment device how to realize the intrinsic frequency online adjustment method in the embodiments of the present application will not be introduced in detail. As long as the device used in the intrinsic frequency online adjustment method in the embodiments of the present application is implemented by those skilled in the art, it belongs to the scope of the present application.

[0126] Embodiment six ​

[0127] Figure 9 is a schematic diagram of a parameter adjustment device of an intrinsic frequency online adjustment system provided by embodiment six of the present application, as shown, the device is used for parameter adjustment of the intrinsic frequency online adjustment system described in any embodiment of the present application, the device comprises: a second data acquisition module 610 and a temperature driving current mapping relationship determination module 620, wherein: Figure 9

[0128] The second data acquisition module 610 is used for testing the target frequency value of the intrinsic frequency of the test equipment and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system.

[0129] The temperature driving current mapping relationship determination module 620 is used for establishing the mapping relationship between the target frequency value of the intrinsic frequency and the temperature-current correlation conversion test data, and obtaining the temperature driving current mapping relationship corresponding to the test equipment.

[0130] The temperature driving current mapping relationship is used for online adjustment of the intrinsic frequency of the target equipment.

[0131] The embodiment of the present application obtains the target frequency value of the intrinsic frequency of the test equipment and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system, establishes the mapping relationship between the target frequency value of the intrinsic frequency and the temperature-current correlation conversion test data, and obtains the temperature driving current mapping relationship corresponding to the test equipment, so as to online adjust the intrinsic frequency of the target equipment according to the temperature driving current mapping relationship. The above-mentioned scheme solves the problem that the intrinsic frequency of the optical fiber ring is easily affected by the environmental temperature and drifts in the prior art, and can realize online adjustment of the intrinsic frequency of the optical fiber ring in the full temperature range, thereby improving the environmental adaptability of the equipment.

[0132] Optionally, the second data acquisition module 610 is specifically used for changing the test driving current of the electromagnetic coil driving circuit in the intrinsic frequency online adjustment system, obtaining the intrinsic frequency variation range of the test equipment, and determining the target frequency value of the intrinsic frequency of the test equipment according to the intrinsic frequency variation range of the test equipment.

[0133] Optionally, the above-mentioned device can further comprise a filler adjustment module, which is used for adjusting the filling length of the filling material in the optical fiber ring of the intrinsic frequency online adjustment system in the case that the intrinsic frequency of the test equipment cannot be adjusted to the target frequency value, and returning to execute the operation of obtaining the target frequency value of the intrinsic frequency of the test equipment and the temperature-current correlation conversion test data of the non-circuit structure in the intrinsic frequency online adjustment system until it is determined that the intrinsic frequency of the test equipment is adjusted to the target frequency value.

[0134] ​The eigenfrequency online adjustment system parameter adjusting device can execute the eigenfrequency online adjustment system parameter adjusting method provided by any embodiment of the present application, and has the corresponding function modules and beneficial effects of the execution method. Technical details not described in the embodiment can be found in the eigenfrequency online adjustment system parameter adjusting method provided by any embodiment of the present application.

[0135] Since the eigenfrequency online adjustment system parameter adjusting device described above is a device that can execute the eigenfrequency online adjustment system parameter adjusting method in the embodiments of the present application, based on the eigenfrequency online adjustment system parameter adjusting method described in the embodiments of the present application, those skilled in the art can understand the specific implementation of the eigenfrequency online adjustment system parameter adjusting device of the embodiment and its various forms of changes, so here the eigenfrequency online adjustment system parameter adjusting device how to implement the eigenfrequency online adjustment system parameter adjusting method in the embodiments of the present application will not be described in detail. As long as the device used to implement the eigenfrequency online adjustment system parameter adjusting method in the embodiments of the present application is implemented by those skilled in the art, it belongs to the scope of protection of the present application.

[0136] Embodiment Seven

[0137] Figure 10 A structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular telephones, smart phones, wearable devices (e.g., headgear, eyewear, watches, etc.), and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not intended to limit the present application as described and / or claimed herein.

[0138] As Figure 10As shown, the electronic device 10 includes at least one processor 11, and a memory, such as a ROM (Read-Only Memory), a RAM (Random Access Memory), and the like, which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor 11, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the ROM 12 or loaded into the RAM 13 from the storage unit 18. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An I / O (Input / Output) interface is also connected to the bus 14.

[0139] Various components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, and the like, an output unit 17, such as various types of displays, a speaker, and the like, a storage unit 18, such as a magnetic disk, an optical disk, and the like, and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, and the like. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0140] The processor 11 can be various general and / or special purpose processing components having processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, and the like. The processor 11 performs various methods and processes described above, such as the eigenfrequency online adjustment method or the eigenfrequency online adjustment system tuning method.

[0141] In some embodiments, the eigenfrequency online adjustment method or the eigenfrequency online adjustment system tuning method can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the eigenfrequency online adjustment method or the eigenfrequency online adjustment system tuning method described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the eigenfrequency online adjustment method or the eigenfrequency online adjustment system tuning method by any other appropriate means, such as by means of firmware.

[0142] Optionally, the intrinsic frequency online adjustment method can be applied to the intrinsic frequency online adjustment system of any embodiment of the present application, and can comprise: obtaining a current environmental temperature and a temperature driving current mapping relationship; querying a target driving current matched with the current environmental temperature according to the temperature driving current mapping relationship; and adjusting a current driving current of an electromagnetic coil driving circuit in the intrinsic frequency online adjustment system to the target driving current, so that the intrinsic frequency of the intrinsic frequency online adjustment system remains unchanged.

[0143] Optionally, the parameter adjustment method of the intrinsic frequency online adjustment system can be used for adjusting the intrinsic frequency online adjustment system of any embodiment of the present application, and can comprise: obtaining a target frequency value of a test device intrinsic frequency and temperature-current correlation conversion test data of a non-circuit structure in the intrinsic frequency online adjustment system; establishing a mapping relationship between the target frequency value of the intrinsic frequency and the temperature-current correlation conversion test data, to obtain a temperature driving current mapping relationship corresponding to the test device; and wherein the temperature driving current mapping relationship is used for online adjustment of the intrinsic frequency of a target device.

[0144] Various embodiments of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0145] Computer programs used to practice the methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed by the processor, implements the functions / acts specified in the flowcharts and / or block diagrams. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, and partially on a machine or entirely on a remote machine or server.

[0146] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0147] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0148] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), blockchain networks, and the Internet.

[0149] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0150] It should be understood that the steps shown above in various forms of flow can be reordered, added, or deleted. For example, the steps described in the present disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the present disclosure can be achieved, which are not limited herein.

[0151] The above detailed description does not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A system for online adjustment of eigenfrequencies, characterized in that The system comprises at least one electromagnetic coil, an electromagnetic coil driving circuit, an optical fiber coil, and an optical beam processing module. The electromagnetic coil driving circuit is electrically connected to the electromagnetic coil and configured to provide a target driving current to the electromagnetic coil to change the magnetic field of the electromagnetic coil through the target driving current. The electromagnetic coil is configured to adjust the refractive index of the optical fiber coil through the generated magnetic field. The optical fiber coil passes through at least one electromagnetic coil, and the ends of the two extended branches of the optical fiber coil are connected to the optical beam processing module to maintain the target eigenfrequency of the target device based on the current refractive index. The optical beam processing module is configured to split the target optical signal and adjust the phases of the two split beams. The optical beam processing module is also configured to combine the two split beams returned by the optical fiber coil in reverse propagation.

2. The intrinsic frequency online adjustment system of claim 1, wherein, The optical beam processing module comprises an optical fiber beam splitter and a waveguide modulator. The optical fiber beam splitter is connected to the waveguide modulator and configured to attenuate the power of the target optical signal to obtain a first target optical signal, and transmit the first target optical signal to the waveguide modulator. The waveguide modulator is connected to the ends of the two extended branches of the optical fiber coil and configured to split the first target optical signal, adjust the phases of the clockwise split beam and the counterclockwise split beam, and transmit the clockwise split beam and the counterclockwise split beam to the optical fiber coil. The waveguide modulator is also configured to combine the clockwise split beam and the counterclockwise split beam returned by the optical fiber coil in reverse propagation, and transmit the combined interference optical signal to the optical fiber beam splitter.

3. The intrinsic frequency online adjustment system according to claim 1 or 2, characterized in that, The optical fiber coil is filled with a physical field-sensitive optical material with a set length.

4. An eigenfrequency online adjustment device, characterized by The eigenfrequency online adjustment system of any one of claims 1-3 further comprises a light source module, a photodetector, and a modulation and demodulation circuit. The light source module is connected to the optical beam processing module in the eigenfrequency online adjustment system and configured to generate a target optical signal and transmit the target optical signal to the optical beam processing module. The photodetector is connected to the optical beam processing module and configured to receive an interference optical signal output by the optical beam processing module, convert the interference optical signal into a target electrical signal, and transmit the target electrical signal to the modulation and demodulation circuit. The modulation and demodulation circuit is electrically connected to the photodetector and configured to demodulate the target electrical signal.

5. A method of online adjustment of eigenfrequencies, characterized in that The method is applied to the eigenfrequency online adjustment system of claim 1 or 2, and comprises: obtaining a current environmental temperature and a temperature driving current mapping relationship; querying a target driving current matched with the current environmental temperature according to the temperature driving current mapping relationship; adjusting the current driving current of the electromagnetic coil driving circuit in the eigenfrequency online adjustment system to the target driving current to keep the eigenfrequency of the eigenfrequency online adjustment system unchanged.

6. A method for adjusting parameters of an eigen frequency online adjusting system, characterized in that, The method is used for adjusting the eigenfrequency online adjustment system of any one of claims 1-3, and comprises: Obtaining a target frequency value of an eigenfrequency of a test device and temperature-current correlation conversion test data of a non-circuit structure in the eigenfrequency online adjustment system; Establishing a mapping relationship between the target frequency value of the eigenfrequency and the temperature-current correlation conversion test data, to obtain a temperature driving current mapping relationship corresponding to the test device; The temperature driving current mapping relationship is used for online adjustment of an eigenfrequency of a target device.

7. The eigen frequency online adjusting system parameter adjusting method according to claim 6, characterized in that, The target frequency value of the eigenfrequency of the test device is obtained by: Changing a test driving current of an electromagnetic coil driving circuit in the eigenfrequency online adjustment system, to obtain a variation range of the eigenfrequency of the test device; Determining the target frequency value of the eigenfrequency of the test device according to the variation range of the eigenfrequency of the test device.

8. The eigen frequency online adjusting system parameter adjusting method according to claim 6 or 7, characterized in that, Before the mapping relationship between the target frequency value of the eigenfrequency and the temperature-current correlation conversion test data is established, the method further includes: In a case where it is determined that the eigenfrequency of the test device cannot be adjusted to the target frequency value, adjusting a filling length of a filling material in a fiber ring of the eigenfrequency online adjustment system, and returning to perform the operations of obtaining the target frequency value of the eigenfrequency of the test device and the temperature-current correlation conversion test data of the non-circuit structure in the eigenfrequency online adjustment system, until it is determined that the eigenfrequency of the test device is adjusted to the target frequency value.

9. An electronic device, comprising: The electronic device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein The memory stores a computer program executed by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the eigenfrequency online adjustment method of claim 5, or execute the eigenfrequency online adjustment system parameter adjustment method of any one of claims 6-8.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for enabling the processor to execute the eigenfrequency online adjustment method of claim 5, or execute the eigenfrequency online adjustment system parameter adjustment method of any one of claims 6-8.

11. A computer program product, characterised in that, The computer program / instructions, when executed by the processor, implement the eigenfrequency online adjustment method of claim 5, or execute the eigenfrequency online adjustment system parameter adjustment method of any one of claims 6-8.

Images