CN116827726A - Data communication method, system, device and computer readable storage medium - Google Patents
Data communication method, system, device and computer readable storage medium Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0278—Arrangements for impedance matching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
Abstract
The present description provides a data communication method, system, apparatus, and computer-readable storage medium, the method comprising obtaining an impedance and/or an interference signal of a power slip-ring power slip-path; determining a data transmission scheme based on the impedance of the power ramp and/or the interference signal; and transmitting communication data on the power ramp based on the data transmission scheme.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a data communication method, system, apparatus, and computer readable storage medium.
Background
Between the stator and the rotor of a computed tomography (Computed Tomography, CT) device, a carbon brush plate, which is accessible on a slip ring, can generally be used as a channel for transmitting electrical power and for transmitting signals. Thus, the CT slip ring typically includes a power slip ring and a communication slip ring. However, the communication slide way can cause abnormal communication due to the change of the electrical resistance value in the slide way caused by the change of the environment, so that the communication slide way needs to be maintained frequently, and the cost is high. For example, the surface material of the communication slide may oxidize, requiring removal or replacement of such variant material. In contrast, the resistance value in the electric slideway is very small, and the resistance value is not changed along with the change of the environment. And because the number of the sliding ways on the CT sliding ring is large, the manufacturing cost, the maintenance cost and the volume of the whole sliding way are increased.
Accordingly, it is desirable to provide a data communication method that reduces manufacturing and maintenance costs while achieving high quality communication transmission.
Disclosure of Invention
One of the embodiments of the present specification provides a data communication method. The method comprises the following steps: acquiring impedance and/or interference signals of a power slideway of the slip ring; determining a data transmission scheme based on the impedance of the power ramp and/or the interference signal; and transmitting communication data on the power ramp based on the data transmission scheme.
In some embodiments, determining a data transmission scheme based on the impedance and/or the interference signal of the power slide includes: and determining an access strategy of the self-adaptive impedance matching module based on the impedance of the power slide so that the receiving and transmitting signal processing module and the power slide keep impedance matching, wherein the data transmission scheme comprises the access strategy of the self-adaptive impedance matching module.
In some embodiments, the determining an access policy for an adaptive impedance matching module based on the impedance of the power chute comprises: acquiring carrier signal frequency; and determining an access policy for the adaptive impedance matching module based on the impedance of the power ramp and the carrier signal frequency. The transmitting communication data on the power slide based on the data transmission scheme includes: controlling the adaptive matching module to perform impedance matching based on the access policy; the communication data is transmitted on the power slide where the impedance matching is completed.
In some embodiments, the determining the access policy of the adaptive impedance matching module based on the impedance of the power ramp and the carrier signal frequency comprises: determining an interface coupling impedance value based on an impedance of the power ramp and the carrier signal frequency; and determining an access strategy of the adaptive impedance matching module based on the interface coupling impedance value.
In some embodiments, when the stator side transmits communication data to the rotor side, the impedance of the power slide is obtained through a transceiver signal processing module of the stator side; and implementing the impedance matching by an adaptive impedance matching module at the stator side. When the rotor side transmits communication data to the stator side, the impedance of the electric power slideway is obtained through a signal receiving and transmitting processing module of the rotor side; and implementing the impedance matching by an adaptive impedance matching module of the rotor side.
In some embodiments, the determining a data transmission scheme based on the impedance of the power slide and/or an interference signal comprises: determining a category of the interfering signal based on the interfering signal; and selecting a modulation mode of the signal to be transmitted from a modulation set based on the category of the interference signal, wherein the data transmission scheme comprises the modulation mode of the signal to be transmitted. The transmitting communication data on the power slide based on the data transmission scheme includes: the communication data is transmitted on the power slide based on the selected modulation scheme.
In some embodiments, the determining the category of the interfering signal based on the interfering signal comprises: matching is carried out based on the waveform of the interference signal and the waveform in an interference signal library; and determining the category of the interference signal according to the matching result.
One of the embodiments of the present specification provides a data communication system. The system comprises: the power system comprises a receiving and transmitting signal processing module and an electric energy quality detection module, wherein the receiving and transmitting signal processing module and the electric energy quality detection module are used for respectively acquiring impedance and/or interference signals of an electric slideway of a slip ring; a controller unit for determining a data transmission scheme based on the impedance and/or the interference signal of the power ramp; and the transceiver signal processing module is further used for transmitting communication data on the power slideway based on the data transmission scheme.
One of the embodiments of the present specification provides a data communication apparatus. The apparatus includes at least one memory for storing computer instructions and at least one processor for executing at least some of the computer instructions to implement a data communication method as described in any of the embodiments of the present specification.
One of the embodiments of the present specification provides a computer-readable storage medium. The storage medium stores computer instructions that when executed by a processor implement a data communication method as described in any of the embodiments of the present specification.
By the method described in some embodiments of the present specification, (1) communication between the stator and rotor of the device uses, power slides, reducing communication slides on slip rings, thereby reducing costs and simplifying maintenance of the device; (2) The mode of connecting the self-adaptive impedance matching module in series between the receiving and transmitting signal processing module and the power line solves the problem of communication quality degradation possibly caused by impedance mismatch between the receiving and transmitting signal processing module and the power slideway; (3) The power quality detection module is connected in series between the receiving and transmitting signal processing module and the power line so as to realize an active switching modulation mode, and interference on the power slideway can be actively detected, so that a corresponding modulation technology is selected, better communication transmission is realized, and the error rate of communication is reduced.
Drawings
The present specification will be further elucidated by way of example embodiments, which will be described in detail by means of the accompanying drawings. The embodiments are not limiting, in which like numerals represent like structures, wherein:
fig. 1 is an exemplary block diagram of a data communication system according to some embodiments of the present description;
FIG. 2 is an exemplary flow chart of a method of data communication shown in accordance with some embodiments of the present description;
FIG. 3 is an exemplary flow chart of a method of data communication shown in accordance with some embodiments of the present description;
FIG. 4 is an exemplary flow chart of a method of data communication shown in accordance with some embodiments of the present description;
fig. 5 is a schematic diagram of a data communication system according to some embodiments of the present disclosure;
fig. 6 is a schematic diagram of a data communication system according to some embodiments of the present description.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present specification, and it is possible for those of ordinary skill in the art to apply the present specification to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.
It will be appreciated that "system," "apparatus," "unit" and/or "module" as used herein is one method for distinguishing between different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.
As used in this specification and the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.
A flowchart is used in this specification to describe the operations performed by the system according to embodiments of the present specification. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
In CT devices, the CT slip ring generally includes a power slip ring and a communication slip ring, which increases manufacturing costs, maintenance costs, and the volume of the entire slip ring due to the large number of slip rings. Thus, a data communication method can be considered in which the power chute and the communication chute are integrated into the same chute, and the power is communicated on the power chute or the power is transmitted on the communication chute.
On the one hand, because the communication slide way on the CT slide ring can cause the change of the electrical resistance value in the slide way due to the change of the environment, the communication is abnormal, the communication slide way is required to be maintained frequently, and the cost is high. For example, the surface material of the communication slide may oxidize, requiring frequent removal of such variant material or replacement. In contrast, the resistance value in the power slide on the CT slip ring is small, and the power slide generally does not change with the change of the environment or has small and negligible change of the resistance value. On the other hand, since the communication slide cannot generally be used for power transmission, communication transmission can be performed on the power slide.
Thus, when integrating the power and communication slides into the same slide, it is often an option to superimpose communication functions on the power slide. However, the signal transmitted on the power slide may suffer from interference of other signals and mismatch of line impedance, which may affect the quality of communication transmission on the power slide. Specifically, the signal may be transmitted over the power ramp by power line carrier technology PLC (power line communication). However, since other electric devices are usually connected to the power circuit, frequency noise generated by the electric devices during operation is identical to the communication frequency, and communication transmission is interfered, that is, noise of pulse type is coupled to the circuit, and noise interference of the same frequency band of communication is caused. In addition, random access of a load in the power loop may cause impedance fluctuation of the line, so that the impedance of the communication transceiving unit is not matched with the impedance of the power line, resulting in signal attenuation, thereby affecting communication quality.
The embodiment of the specification provides a data communication method. The method includes obtaining an impedance and/or an interference signal of a power slide of a slip ring; determining a data transmission scheme based on the impedance of the power ramp and/or the interference signal; and transmitting communication data on the power ramp based on the data transmission scheme. The access strategy of the adaptive impedance matching module may be determined based on the impedance of the power slide, so that the transceiver signal processing module and the power slide keep impedance matching, and a modulation mode of a signal to be transmitted may also be selected from a modulation set based on a category of an interference signal. According to the data communication method disclosed by the embodiment of the specification, communication data can be transmitted on the power slide, the communication cost is effectively reduced, meanwhile, the self-adaptive impedance matching mode is used, and the problems of interference of other signals and unmatched line impedance which are possibly faced when signals are transmitted on the power slide can be effectively solved by combining an active switching modulation technology, so that the manufacturing and maintenance cost is reduced while high-quality communication transmission is realized on the power slide.
Fig. 1 is a block diagram of a data communication system 100, shown in accordance with some embodiments of the present description. In some embodiments, the data communication system 100 may include a stator-side component 110 and a rotor-side component 120, wherein the stator-side component 110 may include a transceiver signal processing module 111, a controller unit 112, and an adaptive impedance matching module 113, and the rotor-side component 120 may include a transceiver signal processing module 121, a controller unit 122, and an adaptive impedance matching module 123. Wherein the stator-side member 110 and the rotor-side member 120 are identical in structure.
In some embodiments, the data communication system 100 may be provided in a CT apparatus for satisfying the bi-directional communication requirements between the stator side and the rotor side of the CT apparatus. Wherein the stator-side part 110 is for performing a communication process of transmitting communication data from the stator side to the rotor side, and the rotor-side part 120 is for performing a communication process of transmitting communication data from the rotor side to the stator side. In some embodiments, the CT apparatus is an apparatus for processing and imaging scan data after performing a cross-sectional scan using precisely collimated X-ray beams, gamma rays, ultrasound, and other rays and extremely sensitive detectors, and may include a cone beam computed tomography apparatus (Cone Beam Computed Tomography, CBCT), and the like.
In some embodiments, the transceiver signal processing module 111 or the transceiver signal processing module 121 may be used to obtain the impedance of the power ramp and transmit to a controller unit (including the controller unit 112 or the controller unit 122). Wherein the power slide is part of a CT slip ring. In some embodiments, the transceiver signal processing module 111 or the transceiver signal processing module 121 may be further configured to transmit communication data on the power ramp based on the determined data transmission scheme. For example, the communication data is transmitted on a power ramp that completes the impedance matching.
In some embodiments, an electrical device for detecting impedance may be disposed within the transceiver signal processing module (including transceiver signal processing module 111 or transceiver signal processing module 121) for detecting impedance of the power ramp. In some embodiments, the transceiver signal processing module may be coupled to the controller unit for transmitting the detected power ramp impedance to the controller unit.
As previously described, when communication data transmission is required to be implemented on the stator side and the rotor side of the CT apparatus, it is possible to select to superimpose communication functions on the power slide to reduce manufacturing and maintenance costs. In this case, the power slide can also be considered as a communication channel. In some embodiments, the power chute may include at least two power lines, a first power line L1 and a second power line L2. In some embodiments, the power chute may include three power lines (as in a 220V power system), then two other power lines other than ground may be the first power line L1 and the second power line L2. In some embodiments, the power slide may include four power lines (as in a 380V power system), then any two of the three remaining power lines other than ground may be the first power line L1 and the second power line L2.
In some embodiments, as shown in fig. 5, the transceiver signal processing module 111 and the transceiver signal processing module 121 may be connected through a first power line L1 and a second power line L2, respectively. In some embodiments, the transceiver signal processing module may further include a transmitting unit for transmitting communication data and a receiving unit for receiving communication data. Specifically, when the stator side transmits data to the rotor side, the transmitting unit of the transceiving signal processing module 111 transmits communication data through the first power line L1, and the receiving unit of the transceiving signal processing module 121 receives communication data through the first power line L1; when the rotor side transmits data to the stator side, the transmitting unit of the transmit-receive signal processing module 121 transmits communication data through the second power line L2, and the receiving unit of the transmit-receive signal processing module 111 receives communication data through the second power line L2.
In some embodiments, the controller unit 112 or the controller unit 122 may be configured to control the adaptive impedance matching module (including the adaptive impedance matching module 113 or the adaptive impedance matching module 123) based on the impedance of the power ramp such that the transceiver signal processing module remains impedance matched to the power ramp. In some embodiments, the controller unit 112 or the controller unit 122 may obtain the carrier signal frequency and control the adaptive impedance matching module based on the impedance of the power ramp and the carrier signal frequency. In some embodiments, the controller unit 112 or the controller unit 122 may determine the interface coupling impedance value based on the impedance of the power ramp and the carrier signal frequency. In some embodiments, the controller unit 112 or the controller unit 122 may determine the access policy of the adaptive impedance matching module based on the interface coupling impedance value. In some embodiments, the controller unit 112 or the controller unit 122 may control the access of the at least one capacitor and the at least one inductor to perform impedance matching based on the access policy.
In some embodiments, the controller unit (including controller unit 112 or controller unit 122) may perform the functions of the instruction set (program code) according to the techniques described herein. Computer instructions may include routines, programs, objects, components, data structures, procedures, modules, and functions that perform particular functions described herein. In some embodiments, the controller unit may comprise a microcontroller, microprocessor, reduced instruction set computer, application specific integrated circuit, special instruction set processor, central processing unit, graphics processing unit, physical processing unit, microcontroller unit, digital signal processor, field programmable gate array, high-order reduced instruction set computer system, programmable logic device, any circuit or processor capable of performing one or more functions, or the like, or any combination thereof.
For specific steps of performing impedance matching by the controller unit, reference may be made to the related descriptions of fig. 2 and 3 of the specification, and no further description is given here.
In some embodiments, the adaptive impedance matching module 113 or the adaptive impedance matching module 123 may include at least one inductor and at least one capacitor, which are controlled by the controller unit to achieve impedance matching. In some embodiments, an adaptive impedance matching module (including adaptive impedance matching module 113 or adaptive impedance matching module 123) is connected between the transmit-receive signal processing module and the power ramp, with the other end connected to the controller unit. In some embodiments, the controller unit 112 or the controller unit 122 may control the access of the at least one capacitor and the at least one inductor based on the determined access policy to control the adaptive impedance matching module to complete the impedance matching process.
In some embodiments, the structure of the adaptive impedance matching module may be as shown in fig. 5. Specifically, the adaptive impedance matching module may include an inductance circuit and a capacitance circuit, where the inductance circuit includes at least one inductance, and the capacitance circuit includes at least one capacitance. Wherein each of the at least one inductor is connected in parallel and constitutes an inductor circuit, and each of the at least one capacitor is connected in parallel and constitutes a capacitor circuit. The first end of the inductance circuit is connected with the receiving and transmitting signal processing module, the other end of the inductance circuit is connected with the capacitance circuit and one of the power lines, one end of the capacitance circuit is connected with the inductance circuit and one of the power lines, and the other end of the capacitance circuit is connected with the other power line. In some embodiments, the adaptive impedance matching module may further include at least two switches, each of the at least one inductor and the at least one capacitor may control whether the inductor or the capacitor is connected or disconnected, respectively, through the respective connected switches. In some embodiments, the controller unit may control the adaptive impedance matching module by controlling each of the inductance and capacitance corresponding switches to complete the impedance matching process. In some embodiments, the adaptive impedance matching module may be other structures that can be used to achieve impedance matching, only the access values of the inductance and the capacitance can be adjusted.
As shown in fig. 5, for example only, the transmitting unit of the transceiver signal processing module 111 is connected to one end of an inductance circuit in the adaptive impedance matching module 113, the other end of the inductance circuit is connected to one end of a capacitance circuit and the first power line L1, and the other end of the capacitance circuit is connected to the second power line L2 and the receiving unit of the transceiver signal processing module 111. The receiving unit of the transceiver signal processing module 121 is connected to one end of an inductance circuit in the adaptive impedance matching module 123, the other end of the inductance circuit is connected to one end of a capacitance circuit and the first power line L1, and the other end of the capacitance circuit is connected to the second power line L2 and the transmitting unit of the transceiver signal processing module 111.
In some embodiments, the stator-side component 110 may further include a power quality detection module 114 and the rotor-side component 120 may further include a power quality detection module 124 (not shown in fig. 1) to address interference with other signals during communication transmissions by actively switching modulation techniques. In some embodiments, as shown in fig. 6, the power quality detection module may be connected between the transceiver signal processing module and the power ramp. Specifically, the power quality detection module 114 may be connected between the transceiver signal processing module 111 and the first power line L1 and between the transceiver signal processing module 111 and the second power line L2, and the power quality detection module 124 may be connected between the transceiver signal processing module 121 and the first power line L1 and between the transceiver signal processing module 121 and the second power line L2.
In some embodiments, the power quality detection module (including power quality detection module 114 and power quality detection module 124) may detect an interference signal of a power slide in a CT slip ring and determine a category of the interference signal based on the interference signal. In some embodiments, the power quality detection module may feed back the type of the interference signal to the transmit-receive signal processing module, and select, by the transmit-receive signal processing module, a modulation mode of the signal to be transmitted from the modulation set based on the type of the interference signal. In some embodiments, the transceiver signal processing module may transmit communication data on the power ramp based on the selected modulation scheme. In some embodiments, the power quality detection module may be any structure capable of detecting an interfering signal and determining the category of the interfering signal. For specific steps of performing active switching modulation by the power quality detection module, reference may be made to the related description of fig. 4, and details thereof are not repeated herein.
It should be understood that the system shown in fig. 1 and its modules may be implemented in a variety of ways. For example, in some embodiments the system and its modules may be implemented in hardware, software, or a combination of software and hardware.
It should be noted that the above description of the data transmission system and the modules thereof is for convenience of description only and is not intended to limit the present description to the scope of the illustrated embodiments. It will be appreciated by those skilled in the art that, given the principles of the system, various modules may be combined arbitrarily or a subsystem may be constructed in connection with other modules without departing from such principles. In some embodiments, the transceiver signal processing module 111/121, the controller unit 112/122, the adaptive impedance matching module 113/123, and the power quality detection module 114/124 may be different modules in a system, or may be one module to implement the functions of two or more modules. For example, each module may share one memory module, or each module may have a respective memory module. Such variations are within the scope of the present description.
Fig. 2 is an exemplary flow chart of a method of data communication according to some embodiments of the present description. The flow 200 may be performed by various modules of the data communication system 100. For example, the flow 200 may be implemented as a set of instructions (e.g., program code) stored in a memory or in various modules internal or external to the data communication system 100. The various modules of data communication system 100 may execute a set of instructions and, when executed, may be configured to perform process 200. The operational schematic of the process 200 presented below is illustrative. In some embodiments, this process may be accomplished with one or more additional operations not described above and/or omitting one or more operations discussed below. In addition, the order in which the operations of flowchart 200 are illustrated in FIG. 2 and described below is not intended to be limiting.
As previously described, when communication data transmission is required to be implemented on the stator side and the rotor side of the CT apparatus, it is possible to select to superimpose communication functions on the power slide to reduce manufacturing and maintenance costs. However, when communication data is transmitted on the power slide, impedance fluctuation of the line is caused by random access of the load in the power loop, so that the impedance of the communication transceiver unit is not matched with the impedance of the power line, resulting in signal attenuation, thereby affecting communication quality. In addition, as other electric equipment is connected to the electric power loop, frequency noise generated by the electric equipment during operation can also interfere communication transmission when the frequency noise is the same as the communication frequency. The data communication method according to the embodiments of the present disclosure can effectively solve the above-described problems by performing communication transmission on the power slide and determining a data transmission scheme based on the impedance of the power slide and the interference signal, and reduce manufacturing and maintenance costs while achieving high-quality communication transmission on the power slide.
Specifically, the data communication method according to some embodiments of the present disclosure may include the following steps:
step 210, an impedance and/or an interference signal of a power slip-ring is obtained. In some embodiments, step 210 may be performed by a transceiver signal processing module and/or a power quality detection module. In some embodiments, the impedance of the power ramp and the disturbance signal may be acquired simultaneously.
In order to avoid degradation of communication quality due to impedance mismatch, this problem can be solved by performing impedance matching. The impedance matching is mainly used for a transmission line, and the purpose that all high-frequency microwave signals can be transmitted to a load point is achieved by adjusting the impedance of the line. In the embodiment of the present disclosure, the impedance of the power slide is adjusted to be close to the impedance of the signal source (e.g., the transceiver signal processing module), that is, impedance matching. Wherein the impedance matching can be accomplished by adjusting the inductance or capacitance in the circuit. Impedance matching can effectively improve the signal-to-noise ratio of the circuit. For example only, if the impedance of the power slideway is detected to be 40Ω and the impedance of the transceiver signal processing module is detected to be 50Ω, the impedance of 10Ω can be increased by the capacitance and the inductance at this time, that is, the impedance matching process is completed.
Specifically, in some embodiments, when communication data needs to be transmitted on the slip ring, the transceiver signal processing module may acquire the impedance of the slip ring power slide in real time, and transmit the acquired impedance of the power slide to the controller unit to achieve impedance matching according to the impedance of the power slide. In some embodiments, the transceiver signal processing module may be connected to the controller unit.
In some embodiments, when communication data needs to be transmitted on the slip ring, the transceiver signal processing module may determine whether the impedance matching needs to be triggered according to the size of the communication data. Specifically, when the amount of communication data is small, the amount of current communication data can be carried even without impedance matching, and thus, triggering of impedance matching can be unnecessary. When the amount of communication data is large, if the impedance of the line is not matched at this time, the data transmission speed is slow, and it is difficult to meet the requirement for high-speed data communication, and at this time, the impedance matching needs to be triggered. For example only, when the communication data is 5G and the data transmission needs to be completed within 1s, then the impedance matching needs to be triggered.
In some embodiments, since the adaptive impedance matching module is already deployed in the data communication system 100 for performing impedance matching, the impedance matching of the line can be implemented by the adaptive impedance matching module at any time, so that it is not necessary to determine whether or not the impedance matching needs to be triggered according to the size of the communication data. In other words, whenever communication data needs to be transmitted on the slip ring, the communication data may be transmitted through the power slide after the impedance matching is completed by the data communication method of the process 200.
In some embodiments, an electrical device for detecting impedance may be disposed within the transceiver signal processing module for detecting impedance of the power slide. In some embodiments, the electrical device for detecting impedance may include an impedance detection chip, an impedance detection board, an impedance tester, etc. may be any device for detecting line impedance. In some embodiments, the transceiver signal processing module may also be connected to an external impedance-detecting electrical device to detect the impedance of the power slide. In some embodiments, the transceiver signal processing module may detect the impedance of the power slide by an auto-balancing bridge method, a radio frequency voltage current method, a network analysis method, or the like. In some embodiments, the impedance range of the power slide may include 30 Ω to 100 Ω. For example, the impedance of the power ramp may be 50Ω or 75Ω.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side, or the rotor side sends data to the stator side), the transmit-receive signal processing module detects the impedance on the power line (e.g., the first power line L1 or the second power line L2) that the data transmission needs to pass through, rather than the impedance on the entire power slide (including both power lines). Specifically, the impedance of the power slide represents the impedance of the transmitting unit in the transceiver signal processing module on one side, which is connected to the receiving unit in the transceiver signal processing module on the other side through a corresponding one of the power lines. Since the impedance fluctuation of the line in the power loop may vary according to various situations, when data needs to be transmitted, the impedance of the power slide needs to be detected in real time, so as to determine a data transmission scheme (for example, an access strategy of the adaptive impedance matching module) according to the comparison between the current impedance of the power slide and the standard impedance of the circuit, thereby realizing the impedance matching between the transceiver signal processing module and the power slide.
By way of example only, when the stator side of the CT apparatus needs to transmit communication data to the rotor side, the impedance of the slip ring power slide (e.g., the impedance on the first power line L1 at this time) may be acquired in real time by the transceiver signal processing module 111 of the stator side component 110, and the acquired impedance of the power slide may be transmitted to the controller unit 112. When the rotor side of the CT apparatus needs to transmit communication data to the stator side, the impedance of the slip ring power slide (for example, the impedance on the second power line L2 at this time) may be acquired in real time by the transceiver signal processing module 121 of the rotor side part 120, and the acquired impedance of the power slide is transmitted to the controller unit 112.
In addition, in order to avoid the influence of the interference signal on the data transmission, the problem can be solved by actively switching the modulation mode. In some embodiments, the power quality detection module may acquire the interference signal of the slip ring power slip-way in real time when communication data needs to be transmitted over the slip ring.
In some embodiments, the interference signal may include noise that is present on the power line itself, e.g., glitch noise, which may also be understood as white noise. In some embodiments, the interfering signal may include noise due to the access load. For example, in the presence of a load motor, a pulse type noise is generated, which is fed forward to the channel as a periodic noise. For another example, the switching elements on the line may generate a pulse when the load is turned on or off, which is a random non-periodic pulse. In some embodiments, the interfering signal may further include noise generated by devices (e.g., loads) on adjacent circuits that may couple into the power chute due to the close line distance.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side, or the rotor side sends data to the stator side), the communication data needs to pass through the adaptive impedance matching modules and one of the power lines on both sides. However, since the two power lines are in the same cable, the two power lines interfere with each other. Thus, the interference signal of the power slide may include adaptive impedance matching modules on both sides and interference signals on both power lines. That is, when communication data needs to be transmitted over the slip ring, the power quality detection module may detect interference signals on the adaptive impedance matching module and the power slide (including at least two power lines) on both sides. In some embodiments, when the power skid includes at least two power lines (e.g., three or four power lines), all of the power lines need to be detected for interference signals.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side, or the rotor side sends data to the stator side), the power quality detection unit of that side may detect an interference signal of the power slip path to determine a data transmission scheme (e.g., a modulation technique corresponding to the interference signal) for the detected interference signal, thereby avoiding the influence of the interference signal. For example only, the power quality detection module 114 of the stator-side assembly 110 may perform the step of detecting an interference signal of the power ramp when the stator-side of the CT device needs to transmit communication data to the rotor-side. When the rotor side of the CT device needs to transmit communication data to the stator side, the power quality detection module 124 of the rotor side assembly 120 may perform the step of detecting the interference signal of the power ramp.
Step 220, determining a data transmission scheme based on the impedance of the power ramp and/or the interference signal. In some embodiments, step 220 may be performed by a controller unit, a power quality detection module, and a transceiver signal processing module.
The data transmission scheme is a scheme determined for achieving high quality communication transmission on the power slide, and can solve problems that may be faced when transmitting signals on the power slide to some extent. In some embodiments, the data transmission scheme may include an access policy of the adaptive impedance module and/or a modulation scheme of the signal to be transmitted.
In some embodiments, when the controller unit receives the impedance of the power ramp sent from the transceiver signal processing module, the controller unit may determine a data transmission scheme, i.e., an access policy of the adaptive impedance module, from the impedance of the power ramp. In the embodiment of the present specification, the adaptive impedance matching module is controlled to adjust the impedance of the power slide so as to match the impedance of the power slide with the impedance of the signal source (for example, the transceiver signal processing module), thereby reducing the influence of signal attenuation on communication transmission, and realizing high-quality transmission of communication data.
In some embodiments, the controller unit may further obtain a carrier signal frequency and determine the interface coupling impedance value based on the impedance of the power ramp and the carrier signal frequency. In some embodiments, the controller unit may determine an access policy of the adaptive impedance matching module based on the interface coupling impedance value and control access of at least one capacitor and at least one inductor in the adaptive impedance matching module based on the access policy. For specific steps how to control the execution of impedance matching by the controller unit, reference may be made to the relevant description of fig. 3 of the specification, which is not repeated here.
In some embodiments, when one side on the CT slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side or the rotor side sends data to the stator side), the controller unit on that side may implement impedance matching of the transceiver signal processing module and the power slip path by controlling the adaptive impedance matching module on that side (e.g., the adaptive impedance matching module 112 on the stator side or the adaptive impedance matching module 122 on the rotor side) according to the impedance on the power line (e.g., the first power line L1 or the second power line L2) that the data transmission needs to pass through.
By way of example only, when the stator side of the CT apparatus needs to transmit communication data to the rotor side, the controller unit 112 of the stator side assembly 110 may control the adaptive impedance matching module 113 of the stator side assembly 110 to achieve impedance matching of the transceiver side assembly 111 and the power ramp after obtaining the impedance of the power ramp from the transceiver side assembly 111. When the rotor side of the CT apparatus needs to transmit communication data to the stator side, the controller unit 122 of the rotor side assembly 120 may control the adaptive impedance matching module 123 of the rotor side assembly 120 to achieve impedance matching between the transceiver signal processing module 121 and the power slide after obtaining the impedance of the power slide from the transceiver signal processing module 121.
In some embodiments, when the power quality detection unit detects the interference signal of the power slide, the power quality detection unit in combination with the transceiver signal processing module may further determine a data transmission scheme, i.e. a modulation mode of the signal to be transmitted, according to the interference signal of the power slide. In the embodiment of the present disclosure, by selecting a modulation technique corresponding to the interference signal, the influence of the interference signal on communication transmission may be reduced, so as to achieve high quality transmission of communication data.
In some embodiments, the power quality detection module may determine a category of the interference signal according to the detected interference signal, and feed back the category of the interference signal to the signal receiving and processing module. In some embodiments, the transceiver signal processing module may select a modulation scheme of the signal to be transmitted from the modulation set based on a class of the interference signal. For specific steps of how to perform active modulation by the power quality detection module, reference may be made to the relevant description of fig. 4, which is not repeated here.
At step 230, communication data is transmitted on the power ramp based on the data transmission scheme. In some embodiments, step 220 may be performed by the controller unit and/or the transceiver signal processing module.
In some embodiments, when the data transmission scheme includes an access policy of the adaptive impedance matching module, the controller unit may control access of the at least one capacitor and the at least one inductor to perform impedance matching based on the access policy and transmit communication data on the power ramp that completes the impedance matching. When the impedance matching is completed, the communication data to be transmitted can be transmitted to the other side through the power slide without serious signal attenuation. For specific steps of how to determine the access policy of the adaptive impedance matching module, reference may be made to the related description of fig. 3 of the specification, and the details are not repeated here.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side, or the rotor side sends data to the stator side), the controller unit of that side may achieve impedance matching of the transceiver signal processing module to the side power line by controlling the adaptive impedance matching module of that side (e.g., the adaptive impedance matching module 112 of the stator side or the adaptive impedance matching module 122 of the rotor side). In some embodiments, after the impedance matching is completed, the transmitting unit of the transceiver signal processing module on the side may transmit communication data, and transmit the communication data to the receiving unit of the transceiver signal processing module on the other side through the power line on the side after passing through the adaptive impedance matching module on the side.
In the data communication method described in the present specification, since the stator-side part 110 and the rotor-side part 120 have the same structure, when communication data is required to be transmitted from one side to the other side on the slip ring, impedance matching and data transmission can be completed only through the transceiving signal processing module, the controller unit and the adaptive impedance matching module of the present side, without using the transceiving signal processing module, the controller unit and the adaptive impedance matching module of the other side.
By way of example only, when the stator side of the CT apparatus needs to transmit communication data to the rotor side, after the controller unit 112 of the stator side assembly 110 controls the adaptive impedance matching module 113 to achieve impedance matching of the transmit-receive signal processing module 111 and the first power line L1, the transmitting unit of the transmit-receive signal processing module 111 of the stator side assembly 110 may transmit to the receiving unit of the transmit-receive signal processing module 121 of the rotor side assembly 120 through the first power line L1 after passing through the adaptive impedance matching module 113. When the rotor side of the CT apparatus needs to transmit communication data to the stator side, after the controller unit 122 of the rotor side assembly 120 controls the adaptive impedance matching module 123 to achieve impedance matching between the transmit-receive signal processing module 121 and the second power line L2, the transmitting unit of the transmit-receive signal processing module 121 of the rotor side assembly 120 may transmit the communication data to the receiving unit of the transmit-receive signal processing module 111 of the stator side assembly 110 through the second power line L2 after passing through the adaptive impedance matching module 123.
In some embodiments, when the data transmission scheme includes a modulation scheme of the signal to be transmitted, the transmit-receive signal processing module may transmit communication data on the power ramp based on the selected modulation scheme. For specific steps of how to determine the modulation scheme of the signal to be transmitted, reference may be made to the related description of fig. 4, which is not repeated here.
It should be noted that the above description of the process 200 is for illustration and description only, and is not intended to limit the scope of applicability of the present disclosure. Various modifications and changes to flow 200 will be apparent to those skilled in the art in light of the present description. However, such modifications and variations are still within the scope of the present description.
Fig. 3 is an exemplary flow chart of a method of data communication according to some embodiments of the present description.
The flow 300 may be performed by various modules of the data communication system 100. For example, the flow 300 may be implemented as a set of instructions (e.g., program code) stored in a memory or in various modules internal or external to the data communication system 100. The various modules of the data communication system 100 may execute a set of instructions and, when executed, may be configured to perform the process 300. The operational schematic of the flow 300 presented below is illustrative. In some embodiments, this process may be accomplished with one or more additional operations not described above and/or omitting one or more operations discussed below. In addition, the order in which the operations of flow 300 are illustrated in FIG. 3 and described below is not intended to be limiting. In some embodiments, flow 300 may be used to implement steps 220 and 230 in flow 200.
Step 310, the carrier signal frequency and the impedance of the power ramp are obtained. In some embodiments, step 310 may be performed by a controller unit.
In some embodiments, the controller unit may obtain the impedance of the power ramp from the transceiver signal processing module. See the relevant description of step 210 for how to obtain the impedance of the power chute, and will not be described in detail herein.
In some embodiments, the controller unit may directly acquire the carrier signal frequency, which is a fixed frequency. Wherein during signal transmission a lower signal frequency is modulated onto a relatively higher fixed frequency, which is called the carrier signal frequency. Since the impedance of the inductor is proportional to the frequency at low frequencies, but due to the inductance profile and capacitance at high frequencies, the impedance of the overall inductor is rapidly reduced at higher frequencies. In other words, the impedance of the inductor increases with the increase of the frequency, the impedance reaches a maximum value when the self-resonant frequency point is reached, then the impedance decreases rapidly to 0, and the inductor becomes capacitive if the frequency is still higher. Therefore, in order to determine the access policy of the adaptive impedance matching module, i.e. whether at least one capacitor and at least one inductor in the adaptive impedance matching module are accessed or not, an appropriate impedance value needs to be calculated according to the carrier signal frequency.
At 320, an interface coupling impedance value is determined based on the impedance of the power ramp and the carrier signal frequency.
In some embodiments, the interface coupling impedance value is an impedance value that the adaptive impedance matching module needs to adjust when the transceiver signal processing module and the power ramp keep impedance matching, and may be regarded as an impedance value that the adaptive impedance matching module applies to the power ramp. In particular, the controller unit may determine the interface coupling impedance value from the impedance of the power ramp and the carrier signal frequency. When the impedance value of the self-adaptive impedance matching module is adjusted to be the interface coupling impedance value, the receiving and transmitting signal processing module and the power slideway can keep impedance matching, and the situation of serious signal attenuation does not exist basically when communication data is transmitted.
In some embodiments, the controller unit may determine the interface coupling impedance value from a difference between the impedance value of the power ramp in the static state and the impedance value of the power ramp in the dynamic state. Wherein, the static state is the state that the rotor does not rotate, and the dynamic state is the state that the rotor rotates. Specifically, the controller unit may first determine the typical impedance value Z1 of the power slide under static state, and calculate the interface coupling impedance value according to the difference between the typical impedance value Z1 and the impedance value Z2 of the power slide under dynamic state (i.e. the impedance value of the power slide detected by the signal processing module during data transmission), in combination with the carrier signal frequency. Wherein the difference between the representative impedance value Z1 and the impedance value Z2 may comprise a magnitude difference as well as a phase angle difference.
Step 330, determining an access policy of the adaptive impedance matching module based on the interface coupling impedance value.
The access strategy of the self-adaptive impedance matching module is the access value of the inductance and the capacitance in the impedance matching module. In some embodiments, the controller unit may determine how to adjust the access values of the inductance and the capacitance in the adaptive impedance matching module according to the determined interface coupling impedance value, so that the adjusted impedance value of the adaptive impedance matching is the interface coupling impedance value.
The adaptive impedance matching module shown in fig. 5 may include an inductance circuit and a capacitance circuit, where the inductance circuit includes at least one inductance and the capacitance circuit includes at least one capacitance. Wherein each of the at least one inductor is connected in parallel and constitutes an inductor circuit, and each of the at least one capacitor is connected in parallel and constitutes a capacitor circuit. Each of the at least one inductor and the at least one capacitor may control the switching-in or switching-out of the inductor or the capacitor, respectively, via a respective connected switch. In the adaptive impedance matching module shown in fig. 5, the access policy may also be whether each inductor and each capacitor are accessed, i.e. the controller unit may determine whether each inductor and each capacitor in the adaptive impedance matching module are accessed.
In some embodiments, the adaptive impedance matching module may be other structures that can be used to achieve impedance matching, only the access values of the inductance and the capacitance can be adjusted. In some embodiments, the controller unit may determine the corresponding access policy according to the adaptive impedance matching modules of different structures, such that the impedance value of the adaptive impedance matching module when the determined access policy is performed is the interface coupling impedance value.
Step 340, controlling access of the at least one capacitor and the at least one inductor based on the access policy to perform impedance matching.
In some embodiments, the controller unit may control access of the at least one capacitance and the at least one inductance in the adaptive impedance matching module based on the determined access policy. Specifically, the controller module may control the access or non-access of each capacitor and each inductor in the adaptive impedance matching module according to the determined access policy.
In the structure of the adaptive impedance matching module shown in fig. 5, since each of the at least one inductor is connected in parallel and constitutes an inductor circuit, each of the at least one capacitor is connected in parallel and constitutes a capacitor circuit, when the number of the connected inductors or capacitors is different, the impedance values of the inductor circuit and the capacitor circuit are also different, so that the impedance values of the adaptive impedance matching module after adjustment are also different.
In some embodiments, the adaptive impedance matching module may further include at least two switches, each of the at least one inductor and the at least one capacitor may control whether the inductor or the capacitor is connected or disconnected, respectively, through the respective connected switches. In some embodiments, the controller unit may control the adaptive impedance matching module by controlling each of the inductance and capacitance corresponding switches to complete the impedance matching process. The controller unit may control the switching-in of the capacitors and the inductors in the adaptive impedance matching module by controlling the switch corresponding to each inductor and each capacitor according to the determined switching-in policy, so as to adjust the impedance of the adaptive impedance matching module.
When the impedance value of the self-adaptive impedance matching module is adjusted to be the interface coupling impedance value, the impedance of the self-adaptive impedance matching module is applied to the power slideway, so that the receiving and transmitting signal processing module and the power slideway can keep impedance matching, and the situation of serious signal attenuation can be avoided when communication data are transmitted, thereby reducing manufacturing and maintenance cost while realizing high-quality communication transmission on the power slideway.
It should be noted that the above description of the process 300 is for purposes of example and illustration only and is not intended to limit the scope of applicability of the present disclosure. Various modifications and changes to flow 300 will be apparent to those skilled in the art in light of the present description. However, such modifications and variations are still within the scope of the present description.
Fig. 4 is an exemplary flow chart of a method of data communication according to some embodiments of the present description.
The flow 400 may be performed by various modules of the data communication system 100. For example, the flow 400 may be implemented as a set of instructions (e.g., program code) stored in a memory or respective modules internal or external to the data communication system 100. The various modules of the data communication system 100 may execute a set of instructions and, when executed, may be configured to perform the process 400. The operational schematic of the flow 400 presented below is illustrative. In some embodiments, this process may be accomplished with one or more additional operations not described above and/or omitting one or more operations discussed below. In addition, the order in which the operations of flowchart 400 are illustrated in FIG. 4 and described below is not intended to be limiting. In some embodiments, flow 300 may be used to implement steps 210, 220, and 230 in flow 200.
Step 410, obtaining an interference signal of the slip ring power slide. In some embodiments, step 410 may be performed by a power quality detection module.
In some embodiments, the power quality detection module may actively detect an interference signal of the CT slip ring power slip-way when communication data needs to be transmitted over the slip ring. For how to acquire the interference signal of the power ramp, reference may be made to the related description of step 210, which is not repeated herein.
Step 420, determining a category of the interfering signal based on the interfering signal. In some embodiments, step 420 may be performed by a power quality detection module.
In some embodiments, the power quality detection module may determine a category of the interfering signal based on the detected interfering signal. Specifically, the power quality detection module may perform matching based on the waveform of the interference signal and the waveform in the interference signal library, and determine the category of the interference signal according to the matching result. In some embodiments, the power quality detection module may compare the detected waveform of the interfering signal with characteristics of waveforms in the interfering signal library to determine a most similar waveform, and determine a category of the interfering signal according to a category of the most similar waveform.
In some embodiments, the interference signal library may store waveforms of various interference signals, or any other possible waveforms of interference signals. In some embodiments, waveforms of the interfering signals in the interfering signal library may be stored in memory and may be recalled by the power quality detection module. In some embodiments, the categories of interfering signals may include glitch noise, impulse noise, periodic noise, and the like. In some embodiments, the waveforms of the interference signals in the interference signal library may be historical data collected during communication, or may be data stored by simulating the interference signals acquired on the line after various kinds of interference are applied.
In some embodiments, the energy of several interference signals is larger, and the category of the interference signals can be determined according to the energy of the interference signals. By way of example only, if a signal of 30dB energy is emitted from the transmitting unit, it will theoretically attenuate by about 10dB when transmitted on the line, i.e. the signal energy that a theoretically actual receiving unit can receive is 20dB. But if there is noise interference on the power line, the receiving unit may only receive around 10 dB. In some embodiments, the intensity of signal attenuation at different frequencies can be used to determine that noise is present in a certain frequency segment or segments, and thus determine the category of interfering signals.
In some embodiments, the power quality detection module may feed back the category of the interfering signal to the transmit-receive signal processing module.
Specifically, the power quality detection module may send the determined category of the interference signal to the transmit-receive signal processing module, and then the transmit-receive signal processing module performs subsequent processing according to the category of the interference signal. In some embodiments, as shown in fig. 6, a connection may be additionally made between the power quality detection module and the transceiver signal processing module to maintain communication, for example, transmitting the category of interference signals.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side, or the rotor side sends data to the stator side), the power quality detection unit of that side may transmit the determined category of interference signals to the transceiver signal processing module of that side. For example only, when the stator side of the CT apparatus needs to transmit communication data to the rotor side, the power quality detection module 114 of the stator side assembly 110 may transmit the determined category of the interference signal to the transceiving signal processing module 111 of the stator side assembly 110. When the rotor side of the CT apparatus needs to transmit communication data to the stator side, the power quality detection module 124 of the rotor side assembly 120 may transmit the determined type of the interference signal to the transceiver signal processing module 121 of the rotor side assembly 120.
Step 430, selecting a modulation mode of the signal to be transmitted from the modulation set based on the category of the interference signal. In some embodiments, step 430 may be performed by a transceiver signal processing module.
In some embodiments, the transceiver signal processing module may select an optimal modulation scheme, i.e. a modulation scheme for such an interference signal, based on a relationship between the interference signal and different modulation techniques according to the type of the interference signal. The modulation scheme is selected to be able to combat such interference signal characteristics. In some embodiments, the modulation scheme in the modulation set may include one or more of spread spectrum techniques, orthogonal Frequency Division Multiplexing (OFDM) techniques, quadrature Amplitude Modulation (QAM) techniques, and so on. In some embodiments, the modulation set may be stored in a memory and recalled by the transceiver signal processing module.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (for example, the stator side sends data to the rotor side, or the rotor side sends data to the stator side), after the transceiver signal processing module on the side receives the category of the interference signal, the modulation mode of the signal to be transmitted can be selected from the modulation set. For example only, when the stator side of the CT apparatus needs to transmit communication data to the rotor side, the transmit-receive signal processing module 111 of the stator side assembly 110 may select a modulation scheme of a signal to be transmitted from the modulation set. When the rotor side of the CT apparatus needs to transmit communication data to the stator side, the transceiver signal processing module 121 of the rotor side assembly 120 may select a modulation mode of a signal to be transmitted from the modulation set.
Step 440, transmitting communication data on the power ramp based on the selected modulation scheme.
In some embodiments, the transceiver signal processing module may perform corresponding modulation based on the selected modulation mode, so as to avoid the influence of the interference signals on data transmission, implement optimal communication transmission, and reduce the error rate of communication.
In some embodiments, when one side on the slip ring needs to transmit communication data to the other side (e.g., the stator side sends data to the rotor side, or the rotor side sends data to the stator side), the transceiver signal processing module of that side may perform the transmission of communication data on the power skid based on the selected modulation scheme. For example only, when the stator side of the CT apparatus needs to transmit communication data to the rotor side, the transceiving signal processing module 111 of the stator side assembly 110 may transmit communication data from the transmitting unit to the receiving unit of the transceiving signal processing module 121 of the rotor side assembly 120 based on the selected modulation scheme. When the rotor side of the CT apparatus needs to transmit communication data to the stator side, the transmit-receive signal processing module 121 of the rotor side assembly 120 may transmit the communication data from the transmitting unit to the receiving unit of the transmit-receive signal processing module 111 of the stator side assembly 110 based on the selected modulation scheme.
It should be noted that the above description of the process 400 is for purposes of illustration and description only, and is not intended to limit the scope of applicability of the present disclosure. Various modifications and changes to flow 400 will be apparent to those skilled in the art in light of the present description. However, such modifications and variations are still within the scope of the present description.
Possible benefits of embodiments of the present description include, but are not limited to: (1) The electric slide way is used for communication between the stator and the rotor of the CT equipment, so that the communication slide way on the slip ring is reduced, the cost is reduced, and the equipment is simpler to maintain; (2) The problem of communication quality degradation possibly caused by impedance mismatch between the transceiver signal processing module and the power slideway is solved by connecting the transceiver signal processing module and the power line in series with the self-adaptive impedance matching module; (3) The power quality detection module is connected in series between the receiving and transmitting signal processing module and the power line so as to realize an active switching modulation mode, so that the interference on the power slideway can be actively detected, and a corresponding modulation technology is selected so as to realize better communication transmission and reduce the error rate of communication.
It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.
While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations to the present disclosure may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this specification, and therefore, such modifications, improvements, and modifications are intended to be included within the spirit and scope of the exemplary embodiments of the present invention.
Meanwhile, the specification uses specific words to describe the embodiments of the specification. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present description. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present description may be combined as suitable.
Furthermore, the order in which the elements and sequences are processed, the use of numerical letters, or other designations in the description are not intended to limit the order in which the processes and methods of the description are performed unless explicitly recited in the claims. While certain presently useful inventive embodiments have been discussed in the foregoing disclosure, by way of various examples, it is to be understood that such details are merely illustrative and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements included within the spirit and scope of the embodiments of the present disclosure. For example, while the system components described above may be implemented by hardware devices, they may also be implemented solely by software solutions, such as installing the described system on an existing server or mobile device.
Likewise, it should be noted that in order to simplify the presentation disclosed in this specification and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the present description. Indeed, less than all of the features of a single embodiment disclosed above.
In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.
Each patent, patent application publication, and other material, such as articles, books, specifications, publications, documents, etc., referred to in this specification is incorporated herein by reference in its entirety. Except for application history documents that are inconsistent or conflicting with the content of this specification, documents that are currently or later attached to this specification in which the broadest scope of the claims to this specification is limited are also. It is noted that, if the description, definition, and/or use of a term in an attached material in this specification does not conform to or conflict with what is described in this specification, the description, definition, and/or use of the term in this specification controls.
Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments of this specification. Other variations are possible within the scope of this description. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present specification may be considered as consistent with the teachings of the present specification. Accordingly, the embodiments of the present specification are not limited to only the embodiments explicitly described and depicted in the present specification.
Claims (10)
1. A method of data communication, the method comprising:
Acquiring impedance and/or interference signals of a power slideway of the slip ring;
determining a data transmission scheme based on the impedance of the power ramp and/or the interference signal; and
communication data is transmitted on the power ramp based on the data transmission scheme.
2. The method of claim 1, wherein the determining a data transmission scheme based on the impedance of the power ramp and/or an interference signal comprises:
and determining an access strategy of the self-adaptive impedance matching module based on the impedance of the power slide so that the receiving and transmitting signal processing module and the power slide keep impedance matching, wherein the data transmission scheme comprises the access strategy of the self-adaptive impedance matching module.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the determining an access policy for an adaptive impedance matching module based on the impedance of the power slide includes:
acquiring carrier signal frequency; and
determining an access policy of the adaptive impedance matching module based on the impedance of the power ramp and the carrier signal frequency; or/and (or)
The transmitting communication data on the power slide based on the data transmission scheme includes:
controlling the adaptive matching module to perform impedance matching based on the access policy;
The communication data is transmitted on the power slide where the impedance matching is completed.
4. The method of claim 3, wherein the determining the access policy of the adaptive impedance matching module based on the impedance of the power ramp and the carrier signal frequency comprises:
determining an interface coupling impedance value based on an impedance of the power ramp and the carrier signal frequency;
and determining an access strategy of the adaptive impedance matching module based on the interface coupling impedance value.
5. The method according to claim 2, wherein the method further comprises:
when the stator side transmits communication data to the rotor side,
acquiring the impedance of the electric power slideway through a signal receiving and transmitting processing module at the stator side; and
the impedance matching is realized through the self-adaptive impedance matching module at the stator side; or/and (or)
When the rotor side transmits communication data to the stator side,
acquiring the impedance of the electric power slideway through a signal receiving and transmitting processing module at the rotor side; and
the impedance matching is achieved by an adaptive impedance matching module at the rotor side.
6. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The determining a data transmission scheme based on the impedance and/or the interference signal of the power ramp includes:
determining a category of the interfering signal based on the interfering signal;
selecting a modulation mode of a signal to be transmitted from a modulation set based on the category of the interference signal, wherein the data transmission scheme comprises the modulation mode of the signal to be transmitted; and
the transmitting communication data on the power slide based on the data transmission scheme includes:
the communication data is transmitted on the power slide based on the selected modulation scheme.
7. The method of claim 6, wherein the determining the category of the interfering signal based on the interfering signal comprises:
matching is carried out based on the waveform of the interference signal and the waveform in an interference signal library; and
and determining the category of the interference signal according to the matching result.
8. A data communication system, the system comprising:
the power system comprises a receiving and transmitting signal processing module and an electric energy quality detection module, wherein the receiving and transmitting signal processing module and the electric energy quality detection module are used for respectively acquiring impedance and/or interference signals of an electric slideway of a slip ring;
a controller unit for determining a data transmission scheme based on the impedance and/or the interference signal of the power ramp; and
The transmit-receive signal processing module is further configured to transmit communication data on the power skid based on the data transmission scheme.
9. A data communication apparatus comprising at least one memory for storing computer instructions and at least one processor for executing at least some of the computer instructions to implement the data communication method of any one of claims 1-7.
10. A computer-readable storage medium storing computer instructions which, when executed by a processor, implement the data communication method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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