CN221078782U - Signal measuring device - Google Patents
Signal measuring device Download PDFInfo
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- CN221078782U CN221078782U CN202323148663.1U CN202323148663U CN221078782U CN 221078782 U CN221078782 U CN 221078782U CN 202323148663 U CN202323148663 U CN 202323148663U CN 221078782 U CN221078782 U CN 221078782U
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- 238000005259 measurement Methods 0.000 claims abstract description 26
- 230000008054 signal transmission Effects 0.000 abstract description 19
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Abstract
The present disclosure relates to an apparatus for signal measurement; the device comprises a controller and an amplifying circuit; the controller is connected with the amplifying circuit; the amplifying circuit is used for amplifying the differential signals of the wind turbine generator set acquired by the controller; the differential signal includes a differential current signal and a differential voltage signal; the controller is used for obtaining signal power through the amplified differential signal; the signal power is used to determine a signal strength of the differential signal; through the technical scheme, the differential current signal and the differential voltage signal in the differential signal can be amplified through the amplifying circuit, so that the signal is easy to identify, signal interference in the signal transmission process is reduced, and the signal transmission efficiency is improved.
Description
Technical Field
The present disclosure relates to the field of signal transmission technologies, and in particular, to a device for signal measurement.
Background
The control system of the wind turbine generator transmits control signals through a differential transmission technology. Differential transmission is a signal transmission technology, in which signals are transmitted through two signal lines, and the signals on the two signal lines have the same amplitude and opposite phases. The differential transmission has the advantages of high precision, easy recognition of small signals, high immunity electromagnetic interference and the like. In the related art, the differential signal is easily interfered by the outside in the transmission process, and is not easy to identify, so that the transmission efficiency is lower.
Disclosure of utility model
It is an object of the present disclosure to provide a signal measurement apparatus for improving the efficiency of signal measurement.
In order to achieve the above object, the present disclosure provides an apparatus for signal measurement, the apparatus including a controller and an amplifying circuit; the controller is connected with the amplifying circuit;
The amplifying circuit is used for amplifying the differential signals of the wind turbine generator set acquired by the controller; the differential signals include differential current signals and differential voltage signals;
The controller is used for obtaining signal power through the amplified differential signals; the signal power is used to determine a signal strength of the differential signal.
Optionally, the amplifying circuit includes a current amplifying circuit; the current amplifying circuit is connected with the controller;
the current amplifying circuit is used for amplifying the differential current signal.
Optionally, the amplifying circuit further comprises a voltage amplifying circuit; the voltage amplifying circuit is connected with the controller;
The voltage amplifying circuit is used for amplifying the differential voltage signal.
Optionally, the controller is configured to split the differential signal into the differential current signal and the differential voltage signal.
Optionally, the controller comprises a multiplier; the multiplier is connected with the amplifying circuit;
the multiplier is used for obtaining the signal power through the amplified differential signal.
Optionally, the controller further comprises a comparator; the comparator is connected with the multiplier;
the comparator is used for comparing the signal power with a preset power threshold value and triggering a control signal according to a comparison result.
Optionally, the device further comprises an alarm device; the alarm device is connected with the comparator;
The alarm device is used for responding to the control signal and sending out alarm information.
Optionally, the controller further comprises a converter; the converter is connected with the multiplier;
the converter is used for converting the signal power into a power image.
Optionally, the device further comprises a display; the display is connected with the converter;
the display is used for displaying the power image.
Optionally, the apparatus further comprises a power source; the power supply is connected with the controller;
the power supply is used for supplying power to the controller.
Through the technical scheme, the differential current signal and the differential voltage signal in the differential signal can be amplified through the amplifying circuit, so that the signal is easy to identify, signal interference in the signal transmission process is reduced, and the signal transmission efficiency is improved.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a block diagram illustrating an apparatus for signal measurement according to an exemplary embodiment.
Fig. 2 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 1.
Fig. 3 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 2.
Fig. 4 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 3.
Fig. 5 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 4.
Fig. 6 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 5.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
First, an application scenario of the present disclosure is described, where the present disclosure is applied in a scenario of measuring a transmission signal of a wind turbine control system. In this scenario, the wind turbine control system is configured to control an operation process of the wind turbine, and transmit a control signal through a differential transmission technology. Differential transmission is a signal transmission technology, in which signals are transmitted through two signal lines, and the signals on the two signal lines have the same amplitude and opposite phases. The differential transmission has the advantages of high precision, easy recognition of small signals, high immunity electromagnetic interference and the like.
In the related art, the signal transmission effect of the control system can be determined by measuring the voltage signal in the transmission signal. However, the measurement result of the voltage signal cannot fully reflect the transmission effect of the signal, and the measurement mode is single.
In order to solve the above-mentioned problems, the present disclosure provides an apparatus for signal measurement; the device comprises a controller and an amplifying circuit; the controller is connected with the amplifying circuit; the amplifying circuit is used for amplifying the differential signals of the wind turbine generator set acquired by the controller; the differential signal includes a differential current signal and a differential voltage signal; the controller is used for obtaining signal power through the amplified differential signal; the signal power is used to determine a signal strength of the differential signal; through the technical scheme, the differential current signal and the differential voltage signal in the differential signal can be amplified through the amplifying circuit, so that the signal is easy to identify, signal interference in the signal transmission process is reduced, and the signal transmission efficiency is improved.
Fig. 1 is a block diagram illustrating an apparatus for signal measurement according to an exemplary embodiment. As shown in fig. 1, the apparatus 100 may include a controller 110 and an amplifying circuit 120; the controller 110 is connected with the amplifying circuit 120;
The amplifying circuit 120 may be configured to amplify the differential signal of the wind turbine generator acquired by the controller 110; the differential signal includes a differential current signal and a differential voltage signal;
the controller 110 may be configured to obtain a signal power from the amplified differential signal; the signal power is used to determine the signal strength of the differential signal.
Illustratively, the controller may include a single-chip microcomputer; the controller can acquire differential signals of the wind turbine generator control system and send the differential signals to the amplifying circuit. The amplifying circuit amplifies the differential signal; and transmits the amplified differential signal to the controller. The controller obtains signal power through the amplified differential signal, so as to analyze the signal power to determine the signal strength of the differential signal.
For example, the signal strength may be positively correlated with the signal power; the greater the signal power, the greater the signal strength; the smaller the signal power, the less the signal strength.
In some embodiments, the controller 110 may be configured to split the differential signal into the differential current signal and the differential voltage signal. Therefore, the voltage signal and the current signal can be measured, the application range is enlarged, and the effect of signal transmission can be comprehensively reflected.
Through the technical scheme, the differential current signal and the differential voltage signal in the differential signal can be amplified through the amplifying circuit, so that the signal is easy to identify, signal interference in the signal transmission process is reduced, and the signal transmission efficiency is improved.
Fig. 2 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 1. As shown in fig. 2, the amplifying circuit 120 may include a current amplifying circuit 121; the current amplifying circuit 121 is connected to the controller 110; the current amplifying circuit 121 is used for amplifying the differential current signal.
The current amplifying circuit may be a signal amplifying circuit for amplifying the differential current signal, for example. The current amplifying circuit can acquire the differential current signal sent by the controller and amplify the differential current signal to measure, so that the problem that the current signal is weak and cannot be measured is avoided, the measuring range is enlarged, and the working efficiency is improved.
In some embodiments, as shown in fig. 2, the amplifying circuit 120 may further include a voltage amplifying circuit 122; the voltage amplifying circuit 122 is connected to the controller 110; the voltage amplifying circuit 122 is used for amplifying the differential voltage signal.
The voltage amplifying circuit may be a signal amplifying circuit for amplifying the differential voltage signal, for example. The voltage amplifying circuit can acquire a differential voltage signal sent by the controller and amplify the differential voltage signal to measure. Thus, the amplified voltage signal can be measured, and the accuracy of the measurement result is improved.
Fig. 3 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 2. As shown in fig. 3, the controller 110 may include a multiplier 111; the multiplier 111 is connected to the amplifying circuit 120; the multiplier 111 may be configured to obtain the signal power from the amplified differential signal.
The multiplier may be, for example, a multiplication circuit; the multiplier may multiply the amplified differential current signal and the differential voltage signal as the signal power. Therefore, the signal power of the differential signal can be measured, the transmission strength of the signal can be determined, and the working efficiency is improved. It should be noted that, determining the product of multiple parameters by the multiplier is a prior art in the field, and will not be described herein.
In some embodiments, as shown in fig. 3, the controller 110 may also include a comparator 112; the comparator 112 is connected to the multiplier 111; the comparator 112 may be configured to compare the signal power to a predetermined power threshold and trigger a control signal based on the comparison.
The comparator may be, for example, a comparison circuit; the comparator is used for acquiring the signal power sent by the multiplier and comparing the signal power with a preset signal power threshold value to obtain a comparison result. It should be noted that, determining the magnitude relation of the plurality of parameters by the comparator is prior art in the art, and will not be described herein.
In some embodiments, the comparison result may include a first comparison result, and the control signal may include a first control signal; the first comparison result may be a result obtained in a case where the signal power is less than or equal to the preset power threshold; the first control signal may be a signal triggered according to the first comparison result. In this way, the control signal can be triggered by determining that the signal strength is low under the condition that the signal power is low.
It will be appreciated that in other embodiments, the comparison result may comprise a second comparison result and the control signal may comprise a second control signal; the second comparison result may be a result obtained in the case that the modified signal power is greater than the preset power threshold; the second control signal may be a signal triggered according to the second comparison result. In this way, the control signal can be triggered by determining that the signal strength is high under the condition of high signal power.
Fig. 4 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 3. As shown in fig. 4, the apparatus 100 further comprises an alarm device 130; the alarm device 130 is connected with the comparator 112; the alert device 130 may be configured to issue an alert message in response to the control signal.
By way of example, the alert means may comprise a buzzer, a loudspeaker, or a warning light, etc.; the alarm information may include sound information, text information, or light information, etc.
In some embodiments, the control signal may include a first control signal or a second control signal; the alarm device can acquire the control signal sent by the comparator and respond to the control signal to send out alarm information.
For example, the alert device may be configured to issue alert information in response to the first control signal. Or the alert means may be arranged to issue an alert message in response to the second control signal. Therefore, the alarm device can send out alarm information under the condition that the signal power is too high or too low so as to prompt a user of the current transmission effect of the differential signal, and the user can know the signal transmission condition of the wind turbine generator set in time.
Fig. 5 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 4. As shown in fig. 5, the controller 110 may further include a converter 113; the converter 113 is connected to the multiplier 111; the converter 113 may be used to convert the signal power into a power image.
The converter may be a conversion circuit for converting signals of a plurality of signal powers into image signals and obtaining a power image, for example. The power image may include a curve, a table, a scatter plot, or the like, which is not limited herein, for representing a trend of variation of the plurality of signal powers. It should be noted that, the conversion of the one-dimensional signal into the two-dimensional image signal by the converter is prior art in the art, and will not be described herein.
In some embodiments, as shown in fig. 5, the apparatus 100 may further include a display 140; the display 140 is connected to the converter 113; the display 140 may be used to present the power image.
For example, the display may acquire an image signal corresponding to the power image transmitted by the converter, thereby displaying the power image. Therefore, a user can intuitively observe the change trend of the signal power, determine the abnormality of the signal power, and timely maintain the signal power so as to ensure the signal transmission safety of the wind turbine generator.
Fig. 6 is a block diagram of an apparatus for signal measurement shown in the exemplary embodiment of fig. 5. As shown in fig. 6, the apparatus 100 may further include a power source 150; the power supply 150 is connected with the controller 110; the power supply 150 is configured to supply power to the controller 110.
It will be appreciated that the power supply may provide power to other components of the signal measurement device via the controller.
The workflow of the apparatus for signal measurement described above is described below by way of example:
The means for signal measurement may include a controller, an amplifying circuit, a display, an alarm device and a power supply. The amplifying circuit may include a current amplifying circuit and a voltage amplifying circuit; the controller may include a multiplier, a comparator, and a converter. The multiplier in the controller is respectively connected with the current amplifying circuit and the voltage amplifying circuit; the multiplier is connected with the comparator; the comparator is connected with the alarm device; the multiplier is connected with the converter; the converter is connected with the display; the controller is connected with the power supply.
The controller is used for obtaining differential signals in a wind turbine generator control system and splitting the differential signals into differential current signals and differential voltage signals. The controller is also used for sending the differential current signal to the current amplifying circuit to obtain an amplified differential current signal; and sending the differential voltage signal to the voltage amplifying circuit to obtain an amplified differential voltage signal.
Then, the current amplifying circuit and the voltage amplifying circuit are respectively used for transmitting the amplified differential current signal and the amplified differential voltage signal to a multiplier of the controller. The multiplier is used for obtaining signal power according to the product of the amplified differential current signal and the amplified differential voltage signal and transmitting the signal power to the converter. The converter is used for converting the signal power into a power image and transmitting the power image to a display. The display is used to display the power image.
The multiplier is also configured to send the signal power to the comparator. The comparator is used for comparing the signal power with a preset power threshold value, triggering a control signal according to a comparison result and sending the control signal to the alarm device. The alarm device is used for responding to the control signal and sending out alarm information.
Through the technical scheme, the differential current signal and the differential voltage signal in the differential signal can be amplified through the amplifying circuit, so that the signal is easy to identify, signal interference in the signal transmission process is reduced, and the signal transmission efficiency is improved.
In summary, the present disclosure provides a signal measurement device; the device comprises a controller and an amplifying circuit; the controller is connected with the amplifying circuit; the amplifying circuit is used for amplifying the differential signals of the wind turbine generator set acquired by the controller; the differential signal includes a differential current signal and a differential voltage signal; the controller is used for obtaining signal power through the amplified differential signal; the signal power is used to determine a signal strength of the differential signal; through the technical scheme, the differential current signal and the differential voltage signal in the differential signal can be amplified through the amplifying circuit, so that the signal is easy to identify, signal interference in the signal transmission process is reduced, and the signal transmission efficiency is improved.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A device for signal measurement, the device comprising a controller and an amplifying circuit; the controller is connected with the amplifying circuit;
The amplifying circuit is used for amplifying the differential signals of the wind turbine generator set acquired by the controller; the differential signals include differential current signals and differential voltage signals;
The controller is used for obtaining signal power through the amplified differential signals; the signal power is used to determine a signal strength of the differential signal.
2. The apparatus of claim 1, wherein the amplifying circuit comprises a current amplifying circuit; the current amplifying circuit is connected with the controller;
the current amplifying circuit is used for amplifying the differential current signal.
3. The apparatus of claim 1, wherein the amplifying circuit further comprises a voltage amplifying circuit; the voltage amplifying circuit is connected with the controller;
The voltage amplifying circuit is used for amplifying the differential voltage signal.
4. The apparatus of claim 1, wherein the controller is configured to split the differential signal into the differential current signal and the differential voltage signal.
5. The apparatus of claim 1, wherein the controller comprises a multiplier; the multiplier is connected with the amplifying circuit;
the multiplier is used for obtaining the signal power through the amplified differential signal.
6. The apparatus of claim 5, wherein the controller further comprises a comparator; the comparator is connected with the multiplier;
the comparator is used for comparing the signal power with a preset power threshold value and triggering a control signal according to a comparison result.
7. The apparatus of claim 6, further comprising an alert device; the alarm device is connected with the comparator;
The alarm device is used for responding to the control signal and sending out alarm information.
8. The apparatus of claim 5, wherein the controller further comprises a converter; the converter is connected with the multiplier;
the converter is used for converting the signal power into a power image.
9. The apparatus of claim 8, wherein the apparatus further comprises a display; the display is connected with the converter;
the display is used for displaying the power image.
10. The apparatus of any one of claims 1-9, wherein the apparatus further comprises a power source; the power supply is connected with the controller;
the power supply is used for supplying power to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323148663.1U CN221078782U (en) | 2023-11-21 | 2023-11-21 | Signal measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323148663.1U CN221078782U (en) | 2023-11-21 | 2023-11-21 | Signal measuring device |
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| CN221078782U true CN221078782U (en) | 2024-06-04 |
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| CN202323148663.1U Active CN221078782U (en) | 2023-11-21 | 2023-11-21 | Signal measuring device |
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| CN (1) | CN221078782U (en) |
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- 2023-11-21 CN CN202323148663.1U patent/CN221078782U/en active Active
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