阅读说明：本技术 一种基于多通道数据的触发判断方法及装置 (Trigger judgment method and device based on multi-channel data ) 是由 张晏铭 于 2020-04-26 设计创作，主要内容包括：本发明属于传感器及数据触发领域,具体公开了一种基于多通道数据的触发判断方法及装置,包括如下步骤：确定目标触发条件对应的多个多通道分布式传感光纤,并采集多个多通道分布式传感光纤上不同位置处的光时域反射信号与对射光；对光时域反射信号进行变换、滤波以及对对射光进行放大；对滤波信号以及对射光放大信号进行模数转换以及模型运算转换；判断单元对数据信号的当前数据变化量与预设的数据变化量进行比对,进行触发判断；判定单元基于模型运算转换数据生成的微小数据关系以及判断单元的判断结果判定最终触发结果。本发明避免了传感器误触发问题,提高了多通道数据的触发判断的准确性,实现无误触发,减少错误触发。(The invention belongs to the field of sensor and data triggering, and particularly discloses a triggering judgment method and device based on multi-channel data, which comprises the following steps: determining a plurality of multi-channel distributed sensing optical fibers corresponding to a target triggering condition, and collecting optical time domain reflection signals and opposite light at different positions on the multi-channel distributed sensing optical fibers; transforming, filtering and amplifying the optical time domain reflection signal; performing analog-to-digital conversion and model operation conversion on the filtering signal and the incident light amplification signal; the judging unit compares the current data variation of the data signal with the preset data variation and carries out triggering judgment; the determination unit determines a final trigger result based on the minute data relationship generated by the model operation conversion data and the determination result of the determination unit. The invention avoids the problem of false triggering of the sensor, improves the accuracy of triggering judgment of multi-channel data, realizes error-free triggering and reduces error triggering.)

1. A trigger judgment method based on multi-channel data is characterized by comprising the following steps:

s1: determining a plurality of multi-channel distributed sensing optical fibers corresponding to a target triggering condition, and collecting optical time domain reflection signals and opposite light at different positions on the multi-channel distributed sensing optical fibers;

s2: transforming, filtering and amplifying the optical time domain reflection signal;

s3: performing analog-to-digital conversion and model operation conversion on the filtering signal and the incident light amplification signal;

s4: the judging unit (401) compares the current data variation of the data signal with a preset data variation, and performs triggering judgment;

s5: a determination unit (403) determines the final trigger result based on the micro-data relationship generated by the model operation conversion data and the determination result of the determination unit (401).

2. The multi-channel data-based trigger judgment method according to claim 1, wherein the S4 further comprises: and the judging unit (401) judges the variation trend of the sensing optical fiber in the corresponding trigger duration based on the data signal when each multi-channel distributed sensing optical fiber meets the trigger condition.

3. The method as claimed in claim 1, wherein the step S5 further comprises calculating the triggering time based on the trend of change.

4. The device is characterized by comprising a determining module (1), a front-end processing module (2), a conversion module (3) and a calculating module (4), wherein the determining module (1) is used for determining a plurality of multi-channel distributed sensing optical fibers corresponding to target triggering conditions, and the determining module (1) is connected with the front-end processing module (2); the front-end processing module (2) comprises an acquisition unit (201) and a preprocessing unit (202), wherein the acquisition unit (201) is used for acquiring optical time domain reflection signals and correlation light at different positions on a plurality of multi-channel distributed sensing optical fibers, transmitting the reflection signals and the correlation light data to the preprocessing unit (202), and transforming, filtering and amplifying the correlation light by the preprocessing unit (202) on the optical time domain reflection signals.

5. The device of claim 4, wherein the conversion module (3) is connected to the front-end processing module (2), the conversion module (3) is configured to obtain the filtered signal transmitted by the preprocessing unit (202) and the outgoing amplified light signal, the conversion module (3) includes a first conversion unit (301) and a second conversion unit (302), and the first conversion unit (301) and the second conversion unit (302) respectively perform analog-to-digital conversion and model operation conversion on the filtered signal and the outgoing amplified light signal.

6. The device of claim 4, wherein the computing module (4) is connected to the converting module (3), the computing module (4) includes a determining unit (401), a triggering computing unit (402) and a determining unit (403), the determining unit (401) is configured to compare a current data variation of the data signal with a preset data variation for triggering determination, and the determining unit (401) determines a variation trend of the sensing fiber within a corresponding triggering duration based on the data signal when each multi-channel distributed sensing fiber satisfies a triggering condition, where the variation trend includes a greater trend and a smaller trend than the preset trend.

7. The apparatus of claim 6, wherein the determining unit (403) determines the final trigger result based on the micro data relationship generated by model operation conversion data and the determination result of the determining unit (401).

8. The device of claim 6, wherein the trigger calculation unit (402) calculates the trigger time based on the variation trend, the trigger time interval comprises a start trigger time and an end trigger time, and the trigger calculation unit (402) determines the final trigger time based on the trigger time interval.

Technical Field

The invention relates to the field of sensors and data triggering, in particular to a triggering judgment method and device based on multi-channel data.

Background

With the rise of the internet of things technology, more and more intelligent applications are continuously generated, such as industrial wireless sensor networks, intelligent parking and the like, the applications are generally distributed in a network form, application nodes are densely distributed, and high-efficiency processing becomes the inevitable requirement of the current intelligent application.

A typical data processing method compares the amount of change in real-time data detected by a sensor with a threshold value set in advance. The data triggering processing method has simple algorithm, and is easy to cause false triggering or no triggering for the acquisition processing of a plurality of sensor combinations or multi-channel distributed sensors, thereby causing low processing efficiency.

Disclosure of Invention

The present invention provides a method and an apparatus for triggering judgment based on multi-channel data, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a trigger judgment method based on multi-channel data comprises the following steps:

s1: determining a plurality of multi-channel distributed sensing optical fibers corresponding to a target triggering condition, and collecting optical time domain reflection signals and opposite light at different positions on the multi-channel distributed sensing optical fibers;

s2: transforming, filtering and amplifying the optical time domain reflection signal;

s3: performing analog-to-digital conversion and model operation conversion on the filtering signal and the incident light amplification signal;

s4: the judging unit compares the current data variation of the data signal with the preset data variation and carries out triggering judgment;

s5: the determination unit determines a final trigger result based on the minute data relationship generated by the model operation conversion data and the determination result of the determination unit.

Preferably, the judging unit judges a variation trend of the sensing fiber within the corresponding trigger duration based on the data signal when each multi-channel distributed sensing fiber satisfies the trigger condition.

Preferably, S5 includes calculating the trigger time based on the trend of change.

The invention also provides a device applied to the triggering judgment method of the multi-channel data, which comprises a determining module, a front-end processing module, a conversion module and a calculation module, wherein the determining module is used for determining a plurality of multi-channel distributed sensing optical fibers corresponding to the target triggering conditions and is connected with the front-end processing module; the front-end processing module comprises an acquisition unit and a preprocessing unit, wherein the acquisition unit is used for acquiring optical time domain reflection signals and correlation light at different positions on the multi-channel distributed sensing optical fibers, transmitting the reflection signals and the correlation light data to the preprocessing unit, and transforming, filtering and amplifying the correlation light by the preprocessing unit.

Preferably, the conversion module is connected to the front-end processing module, the conversion module is configured to obtain the filtering signal transmitted by the preprocessing unit and the outgoing light amplifying signal, the conversion module includes a first conversion unit and a second conversion unit, and the first conversion unit and the second conversion unit respectively perform analog-to-digital conversion and model operation conversion on the filtering signal and the outgoing light amplifying signal.

Preferably, the calculation module is connected to the conversion module, the calculation module includes a determination unit, a triggering calculation unit and a determination unit, the determination unit is configured to compare a current data variation of the data signal with a preset data variation, and perform triggering determination, and the determination unit determines a variation trend of the sensing optical fiber within a corresponding triggering duration based on the data signal when each multi-channel distributed sensing optical fiber satisfies a triggering condition, where the variation trend includes a greater trend than the preset trend and a smaller trend than the preset trend.

Preferably, the determination unit determines the final trigger result based on the minute data relationship generated by the model operation conversion data and the determination result of the determination unit.

Preferably, the trigger calculation unit calculates the trigger time based on the variation trend, the trigger time interval includes a start trigger time and an end trigger time, and the trigger calculation unit determines the final trigger time based on the trigger time interval.

Compared with the prior art, the invention has the beneficial effects that:

the invention avoids the problem of false triggering of the sensor, improves the accuracy of triggering judgment of multi-channel data, realizes error-free triggering and reduces error triggering; the judging unit judges the final trigger result based on the micro data relation generated by the model operation conversion data and the judging result of the judging unit, and compared with the traditional single trigger processing mode, the method has better accuracy, thereby having extremely wide application field and prospect.

Drawings

FIG. 1 is a block diagram of the apparatus of the present invention;

FIG. 2 is a block diagram of the conversion module of the present invention;

FIG. 3 is a flow chart of the determination method of the present invention.

In the figure: 1. a determination module; 2. a front-end processing module; 201. a collection unit; 202. a pre-processing unit; 3. a conversion module; 301. a first conversion unit; 302. a second conversion unit; 4. a calculation module; 401. a judgment unit; 402. a trigger calculation unit; 403. and a determination unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-3, the present invention provides a technical solution: a trigger judgment method based on multi-channel data comprises the following steps:

s1: determining a plurality of multi-channel distributed sensing optical fibers corresponding to a target triggering condition, and collecting optical time domain reflection signals and opposite light at different positions on the multi-channel distributed sensing optical fibers;

s2: transforming, filtering and amplifying the optical time domain reflection signal;

s3: performing analog-to-digital conversion and model operation conversion on the filtering signal and the incident light amplification signal;

s4: the judging unit 401 compares the current data variation of the data signal with a preset data variation, and performs trigger judgment;

s5: determination section 403 determines the final trigger result based on the minute data relationship generated by the model operation conversion data and the determination result of determination section 401.

In this embodiment, S4 further includes: when each multi-channel distributed sensing fiber meets the triggering condition, the determining unit 401 determines a variation trend of the sensing fiber within a corresponding triggering duration based on the data signal.

In this embodiment, S5 further includes calculating the trigger time based on the trend of change.

The invention also provides a device applied to the triggering judgment method of the multichannel data, which comprises a determining module 1, a front-end processing module 2, a conversion module 3 and a calculation module 4, wherein the determining module 1 is used for determining a plurality of multichannel distributed sensing optical fibers corresponding to the target triggering conditions, and the determining module 1 is connected with the front-end processing module 2; the front-end processing module 2 includes an acquisition unit 201 and a preprocessing unit 202, where the acquisition unit 201 is configured to acquire optical time domain reflection signals and correlation light at different positions on a plurality of multichannel distributed sensing optical fibers, transmit the reflection signals and the correlation light data to the preprocessing unit 202, and transform, filter and amplify the correlation light by the preprocessing unit 202.

In this embodiment, the conversion module 3 is connected to the front-end processing module 2, the conversion module 3 is configured to obtain the filtered signal and the amplified signal of the outgoing light transmitted by the preprocessing unit 202, the conversion module 3 includes a first conversion unit 301 and a second conversion unit 302, and the first conversion unit 301 and the second conversion unit 302 respectively perform analog-to-digital conversion and model operation conversion on the filtered signal and the amplified signal of the outgoing light.

In this embodiment, the calculation module 4 is connected to the conversion module 3, the calculation module 4 includes a determination unit 401, a trigger calculation unit 402, and a determination unit 403, the determination unit 401 is configured to compare a current data variation of the data signal with a preset data variation, and perform trigger determination, when each multichannel distributed sensing fiber meets a trigger condition, the determination unit 401 determines a variation trend of the sensing fiber within a corresponding trigger duration based on the data signal, where the variation trend includes a greater trend and a smaller trend than the preset trend.

In the present embodiment, the determination unit 403 determines the final trigger result based on the minute data relationship generated by the model operation conversion data and the determination result of the determination unit 401.

In this embodiment, the trigger calculation unit 402 calculates the trigger time based on the variation trend, the trigger time interval includes a start trigger time and an end trigger time, and the trigger calculation unit 402 determines the final trigger time based on the trigger time interval.

The invention avoids the problem of false triggering of the sensor, improves the accuracy of triggering judgment of multi-channel data, realizes error-free triggering and reduces error triggering; the determining unit 403 of the present invention determines the final trigger result based on the micro data relationship generated by the model operation conversion data and the determination result of the determining unit, and compared with the traditional single trigger processing method, the present invention has better accuracy, and therefore, the present invention has extremely wide application fields and prospects.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.