WO2020107445A1 - 一种传感器的自动校准方法和系统 - Google Patents
一种传感器的自动校准方法和系统 Download PDFInfo
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- WO2020107445A1 WO2020107445A1 PCT/CN2018/118686 CN2018118686W WO2020107445A1 WO 2020107445 A1 WO2020107445 A1 WO 2020107445A1 CN 2018118686 W CN2018118686 W CN 2018118686W WO 2020107445 A1 WO2020107445 A1 WO 2020107445A1
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- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- the invention relates to the field of automatic calibration, in particular to an automatic calibration method and system for sensors.
- the patent "Sensor Calibration Apparatus and Method" with application number 201310722409.X includes: an I2C interface that is connected to the sensor via an I2C signal line; and a calibration module that communicates with the sensor via the I2C interface.
- the calibration module includes : Calibration core, which can provide the calibration value to the sensor to calibrate the output of the sensor; Start value register, which stores the initial calibration value, the calibration kernel writes the initial calibration value as the calibration value to the sensor via the I2C interface; Target value register, which Store the expected output value of the sensor; and the tolerance register, which stores the tolerance value, where the calibration kernel reads the output value of the sensor after calibration based on the calibration value, and judges whether the difference between it and the expected output value is within the tolerance value If it is within the tolerance value, the calibration of the sensor is successfully completed, otherwise the calibration value is modified and the new calibration value is written to the sensor until the difference between the sensor's output value and the expected output value is within the tolerance value.
- This type of method is a simple value adjustment calibration method, and its limitations are:
- the calibration value needs to be adjusted continuously, which is better for simple linear sensors, but for non-linear sensors, sensors that do not meet the linear law, there is no way to do calibration
- the other is the calibration using the generated coefficient table.
- the patent "Sensor Calibration Method" with application number 201710258680.0 numbering M sensors; calculating the calibration coefficient of each sensor, and generating a sensor deviation calibration coefficient table including the number of each sensor and the calibration coefficient of each sensor; calculation The calibration coefficient of the joint module when the joint module is used with each sensor, and generates a calibration coefficient table of the joint module deviation including the number of each sensor and the calibration coefficient of the joint module when the joint module is used with each sensor; The sensor deviation calibration coefficient table and the joint module deviation calibration coefficient table generate the comprehensive deviation calibration coefficient table of M sensors and the joint module; and the client that installs the sensor, the joint module and the comprehensive deviation calibration coefficient table from the sensor number In the deviation calibration coefficient table, the corresponding comprehensive calibration coefficient is called to calibrate the sensor.
- the calibration formula varies with the environment. It is difficult to accurately calibrate the sensor by adjusting the coefficient.
- the disadvantages of the sensor calibration method and equipment in the prior art include the following aspects:
- the method is one-sided: only supports the sensor calibration that meets the rules of a certain formula. It is impossible to calibrate the sensor with complex and changeable calibration formulas as the external conditions change.
- the senor is not adaptive, and it needs to be re-calibrated after a period of use or when the external conditions change.
- the purpose of the present invention is to provide an automatic sensor calibration method and system for solving the technical problems of traditional sensor calibration with high one-sidedness, poor adaptability, low degree of automation, and inability to record data.
- the present invention proposes the following technical solutions:
- An automatic sensor calibration system includes a sensor terminal, a gateway, a cloud platform, a standard measurement module, a calibration module, and a big data platform;
- the sensor terminal includes a plurality of sensors, the sensors are target calibration objects, and the sensors are used to collect sensor data and upload to the gateway;
- the gateway is used to connect the sensor to the cloud platform and transfer the sensor data uploaded by the sensor to the cloud platform;
- the standard measurement module, calibration module, and big data platform are all connected to the cloud platform;
- the standard measurement module is used to obtain the true value data of the sensor data corresponding to each sensor and transmit it to the cloud platform;
- the cloud platform is used to transfer the obtained sensor data and real value data to the big data platform;
- the big data platform is used to store and transfer the acquired sensor data, real value data, and other statistical data that automatically statistics and affects the accuracy of the sensor to the calibration module;
- the calibration module is used to analyze the obtained sensor data, real value data, and other statistical data that automatically statistics and affects the accuracy of the sensor, to obtain the corresponding calibration model of the target calibrated sensor;
- the calibration model is used to calibrate data during sensor calibration and output the calibrated results.
- a part of the sensors in the sensor terminal constitute a basic environment sensor
- the basic environment sensor is a sensor corresponding to a pre-selected physical parameter that affects the accuracy of other sensors.
- the calibration module includes a data acquisition module, a data filtering module, and a data modeling module;
- the data obtaining module is used to obtain data from a big data platform
- the data filtering module is used to filter and filter the data in the acquired data module to remove abnormal data and duplicate data;
- the data modeling module is used to generate a correlation condition list, a calibration ranking list, and a calibration model for the target calibrated sensor;
- the correlation condition list is composed of sensors or other condition data corresponding to physical parameters that affect the accuracy of the target calibrated sensor selected from the basic environmental sensors and other condition data through variable correlation calculation methods;
- the calibration ranking list refers to the degree of influence of each sensor on the accuracy of sensors in the entire system sorted out with reference to the correlation list corresponding to the sensors calibrated by each target, and the magnitude of the influence on the accuracy of sensors in the entire system Sort in order;
- the calibration model is used to calibrate the target calibrated sensor in the order of the calibration ranking list and with reference to the real value data.
- the system further includes a machine learning module, the machine learning module is connected to the big data platform and the calibration module;
- the machine learning module is used to enable and generate a new calibration model to replace the calibration model generated by the calibration module when the accuracy of the calibration model generated by the calibration module is low.
- the machine learning module is used to obtain the correlation condition list of the target calibrated sensor from the calibration module, and obtain the sensor data in the correlation list from the big data platform, and characterize the sensor data; meanwhile The machine learning module is used to obtain the sensor data, real value data of the target calibrated sensor and other condition data in the correlation condition list from the big data platform;
- the machine learning module performs machine learning based on the obtained data to obtain a calibration model of the target-calibrated sensor.
- the machine learning module learns according to the following method:
- Step 1 Refer to the correlation condition list to simulate different environmental conditions for the target calibrated sensor
- Step 2 Record the sensor data of the target calibrated sensor under various environmental conditions over a period of time, and obtain its characteristic value, and at the same time obtain the true value under the corresponding environmental conditions;
- Step 3 Perform machine learning with reference to real values and feature values to obtain a calibration model.
- the accuracy index of the calibration model generated by the calibration module itself includes the sum variance, the sum of square errors, the mean square error, the root mean square, the standard deviation, and the determination coefficient One or more.
- the calibration model is stored on the sensor terminal and/or cloud platform.
- the invention also discloses an automatic calibration method of the sensor, which is consistent with the basic idea of the above system, and is introduced as follows.
- the sensor collects sensor data and uploads it to the gateway;
- the gateway connects the sensor to the cloud platform and transfers the sensor data uploaded by the sensor to the cloud platform;
- the standard measurement module obtains the true value data of the sensor data corresponding to each sensor and transmits it to the cloud platform;
- the cloud platform transfers the obtained sensor data and real value data to the big data platform
- the big data platform stores the acquired sensor data, real value data, and other statistical data that automatically statistics and affects the accuracy of the sensor and passes it to the calibration module;
- the calibration module analyzes the obtained sensor data, real value data and other statistical data that automatically statistics and affects the accuracy of the sensor to obtain the corresponding calibration model of the target calibration sensor;
- the calibration model calibrates data during sensor calibration and outputs the calibrated results.
- the calibration module includes a data acquisition module, a data filtering module, and a data modeling module;
- the data obtaining module obtains data from a big data platform
- the data filtering module filters and filters the data in the acquired data module to remove abnormal data and duplicate data
- the data modeling module generates a correlation condition list, a calibration ranking list, and a calibration model for the target calibrated sensor
- the correlation condition list is composed of sensors or other condition data corresponding to physical parameters that affect the accuracy of the target calibrated sensor selected from the basic environmental sensors and other condition data through variable correlation calculation methods;
- the basic environmental sensor is a sensor corresponding to a physical parameter pre-selected from the sensor terminal and affecting the accuracy of other sensors;
- the calibration ranking list refers to the degree of influence of each sensor on the accuracy of sensors in the entire system sorted out with reference to the correlation list corresponding to the sensors calibrated by each target, and the magnitude of the influence on the accuracy of sensors in the entire system Sort in order;
- the calibration model calibrates the target calibrated sensor in the order of the calibration ranking list and with reference to the real value data.
- the machine learning module when the accuracy of the calibration model generated by the calibration module is low, the machine learning module is enabled and a new calibration model is generated to replace the calibration model generated by the calibration module itself;
- the machine learning module obtains the correlation condition list of the target calibrated sensor from the calibration module, and obtains the sensor data in the correlation list from the big data platform, and characterizes the sensor data; at the same time, the machine learning The module obtains the sensor data, real value data of the target calibrated sensor and other condition data in the correlation condition list from the big data platform;
- the machine learning module performs machine learning based on the obtained data to obtain a calibration model of the target-calibrated sensor.
- the technical solution of the present invention provides a set of sensor detection methods and systems that support the calibration of multiple sensors.
- the technical solution of the present invention has the following advantages over traditional technical solutions:
- the method and system support batch calibration of sensors, which can calibrate a large number of sensors at the same time, saving time and labor.
- the method and system can generate calibration models for various types of sensors, various linear and non-linear sensors, various directly integrated sensor components or integrated sensor products can be supported, and can be automatically adjusted according to changes in the environment Calibration model of the sensor.
- the operation is simple.
- the system automatically collects data, calculates data, and generates a calibration model.
- the model can be directly stored in the sensor terminal or can be stored in the cloud. It supports offline and online use.
- FIG. 2 is a schematic diagram of the functional structure of the calibration module of the present invention.
- FIG. 3 is a schematic diagram of the functional structure of the machine learning module of the present invention.
- an automatic sensor calibration system includes a sensor terminal, a gateway, a cloud platform, a standard measurement module, a calibration module, a big data platform, and a management control terminal.
- the sensor terminal includes multiple sensors, and the types of the sensors may also be multiple types, such as temperature and humidity, brightness, color, formaldehyde, CO2, CO, PM2.5, PM10, TVOC, current, and so on.
- the sensor terminal can be an integrated sensor component or a finished integrated sensor. The difference between them is that integrated components require the terminal's own MCU to collect the signal, and then convert the signal value into a measured value, and the integrated product can directly obtain the measured value.
- the sensor is a target calibration object, and the sensor is used to collect sensor data and upload to the gateway.
- the gateway is used for network connection between the sensor and the cloud platform, and transmits the sensor data uploaded by the sensor to the cloud platform.
- the sensor terminal can bring its own gateway function according to demand, then the sensor data can be directly transmitted to the cloud platform.
- the standard measurement module, calibration module, big data platform and management control terminal are all connected to the cloud platform.
- the standard metering module needs to integrate a peripheral standard meter to obtain the true value data of the sensor data corresponding to each sensor and pass it to the cloud platform.
- the standard metering module is only used during calibration, and this module is not required when the sensor is actually used.
- the cloud platform is used to transfer the acquired sensor data and real value data to the big data platform.
- the big data platform is used to transfer the acquired sensor data, real value data and other condition data (including but not limited to sensor usage time, running time, etc.) that automatically statistics and affect the accuracy of the sensor to the calibration module, and these data It is also stored on the big data platform.
- real value data and other condition data including but not limited to sensor usage time, running time, etc.
- the calibration module is the core part of the specific embodiment of the present invention, and is used to analyze the obtained sensor data, real value data, and other statistical data that automatically statistics and affects the accuracy of the sensor to obtain the corresponding calibration of the target calibrated sensor model.
- the calibration model is used to calibrate data during sensor calibration and output the calibrated results.
- the management control terminal is used to provide the user with a view of each sensor and to facilitate the calibration of each sensor.
- the applicant tried to find the weight of different sensors on the system based on the influencing factors of the sensors, thereby adjusting the sensors in the order of weight to ensure the efficient calibration of the entire system.
- the specific embodiment of the present invention proposes the concept of "basic environment sensor", that is, a part of the sensors in the sensor terminal constitute a basic environment sensor, and the basic environment sensor is a pre-selected one that affects the accuracy of other sensors The sensor corresponding to the physical parameter.
- a temperature sensor that is related to detecting temperature can be classified as a basic environmental sensor.
- the above specific basic environmental sensors can be flexibly selected and combined according to their own needs. Taking a step back, if the selection of basic environmental sensors cannot be determined, all sensors with possible correlations can be included. Except for the increase in the number of data samples that need to be collected and processed, the algorithm and process remain unchanged.
- the combination of the above basic environmental sensors is to select the corresponding correlation condition list for each specific sensor.
- the calibration module is described in detail below.
- the calibration module includes a data acquisition module, a data filtering module and a data modeling module.
- the data acquisition module is used to acquire data from a big data platform, that is, sensor data, real value data, and other condition data that are automatically calculated and affect the accuracy of the sensor.
- the data filtering module is used for filtering and filtering the data in the acquired data module to remove abnormal data and duplicate data to obtain an effective data set.
- the data modeling module is used to generate a correlation condition list, a calibration ranking list, and a calibration model for the target calibrated sensor.
- the correlation condition list is obtained by the correlation condition selection module in the data modeling module, which is selected from basic environmental sensors and other condition data through variable correlation calculation methods (including but not limited to Pearson correlation algorithm) It consists of sensor or other condition data (including but not limited to sensor usage time, running time, etc.) corresponding to the physical parameters that affect the accuracy of the target calibrated sensor.
- the calibration sorting list needs to sort and calibrate different types of sensors in the system, that is, the sorting according to the influence of the sensors on the system described above. That is, each sensor sorted with reference to the correlation list corresponding to the sensors calibrated by each target affects the degree of accuracy of the sensors in the entire system, and is sorted in order of affecting the accuracy of the sensors in the entire system.
- the weights of the weighted sensors can be accumulated to obtain the degree of influence of various sensors on the accuracy of the sensors in the entire system, and sorted in the order of influence.
- the above weight accumulation method includes, but is not limited to, summing the weights of the corresponding sensors distributed in the respective correlation lists to obtain the weights of the sensors for the entire system.
- the various sensors are sorted in the order of the above weights relative to the entire system, and the calibration sequence is performed in this order.
- the accuracy index of the calibration model generated by the calibration module itself includes one or more of sum variance, square sum error, mean square deviation, root mean square, standard deviation, and determination coefficient between the calibration result and the true value.
- the machine learning module is connected to the big data platform and the calibration module.
- the machine learning module is used to enable and generate a new calibration model to replace the calibration model generated by the calibration module when the accuracy of the calibration model generated by the calibration module is low.
- the machine learning module is used to obtain the correlation condition list of the target calibrated sensor from the calibration module, and obtain the sensor data in the correlation list from the big data platform, and characterize the sensor data; meanwhile The machine learning module is used to obtain the sensor data, real value data and other condition data in the correlation condition list of the target calibrated sensor from the big data platform.
- the machine learning module performs machine learning based on the obtained data to obtain a calibration model of the target-calibrated sensor.
- the machine learning module learns as follows:
- Step 1 Refer to the correlation condition list to simulate different environmental conditions for the target calibrated sensor.
- Step 2 Record the sensor data of the target calibrated sensor under various environmental conditions over a period of time, and obtain its characteristic value, and at the same time obtain the true value under the corresponding environmental conditions.
- Step 3 Perform machine learning with reference to real values and feature values to obtain a calibration model.
- the calibration model is stored on the sensor terminal and/or the cloud platform.
- the sensor data collected by the sensor the sensor data that affects the sensor, and other influencing factor data need to be passed into the calibration model to obtain data that is closer to the true value after calibration.
- the sensor collects sensor data during the calibration phase and actual use phase and uploads it to the gateway.
- the gateway connects the sensor to the cloud platform through the network, and transmits the sensor data uploaded by the sensor to the cloud platform.
- the standard measurement module acquires the true value data of the sensor data corresponding to each sensor during the calibration stage and transmits it to the cloud platform.
- the cloud platform transfers the obtained sensor data and real value data to the big data platform.
- the big data platform transfers the acquired sensor data, true value data, and other statistical data that automatically statistics and affects the accuracy of the sensor to the calibration module.
- the calibration module analyzes the obtained sensor data, real value data, and other statistical data that automatically statistics and affects the accuracy of the sensor, and obtains the corresponding calibration model of the target calibrated sensor.
- the calibration model calibrates data during sensor calibration and outputs the calibrated results.
- the calibration module includes a data acquisition module, a data filtering module, and a data modeling module.
- the data obtaining module obtains data from a big data platform.
- the data filtering module filters and filters the data in the acquired data module to remove abnormal data and duplicate data.
- the data modeling module generates a correlation condition list, a calibration ranking list, and a calibration model for the target calibrated sensor.
- the correlation condition list is composed of sensors or other condition data corresponding to physical parameters that affect the accuracy of the target calibrated sensor selected from the basic environmental sensors and other condition data through variable correlation calculation methods;
- the basic environmental sensor is a sensor corresponding to a physical parameter pre-selected from the sensor terminal and affecting the accuracy of other sensors.
- the calibration ranking list refers to the degree of influence of each sensor on the accuracy of sensors in the entire system sorted out with reference to the correlation list corresponding to the sensors calibrated by each target, and the magnitude of the influence on the accuracy of sensors in the entire system Sort in order.
- the calibration model calibrates the target calibrated sensor in the order of the calibration ranking list and with reference to the real value data.
- the machine learning module is activated and a new calibration model is generated to replace the calibration model generated by the calibration module itself.
- the machine learning module obtains the correlation condition list of the target calibrated sensor from the calibration module, and obtains the sensor data in the correlation list from the big data platform, and characterizes the sensor data; at the same time, the machine learning The module obtains the sensor data, real value data of the target calibrated sensor and other condition data in the correlation condition list from the big data platform.
- the machine learning module performs machine learning based on the obtained data to obtain a calibration model of the target-calibrated sensor.
- the user starts the calibration mode, the instruction is sent to the sensor terminal through the cloud platform, the sensor receives the instruction, enters the calibration mode, starts to quickly collect data, and sends the data to the cloud platform, after the cloud platform receives the data, processes the data and join
- the current condition data (temperature, humidity, device duration) is stored in the big data platform.
- the standard meter needs to be turned on to obtain the true value of the sensor at the same time.
- manual intervention is required, such as the true value of formaldehyde.
- the system automatically tags the data according to the time when the sensor collects data and real data, and starts model training.
- a calibration model is obtained, which corresponds to the sensor and stored in the cloud platform.
- the sensor will have a unique ID in the system According to this unique ID, the calibration model of this sensor can be found, so it can be calibrated online in the cloud.
- the calibration model can also be delivered to the sensor terminal through the cloud platform, and the sensor itself records the calibration.
- the system issues instructions to make the sensor enter the working mode.
- the sensor uses the calibration model to calibrate the data and output the calibrated result.
- the above system and method are applied to, for example, a school classroom indoor environment system, and the system is calibrated.
- the system contains air quality detection sensors, temperature and humidity sensors, and brightness sensors. Users can see the current environmental status through the management control terminal. Since the sensors are purchased directly from existing products, there is a certain error in the accuracy of the sensor, and the sensor in the entire environment needs to be calibrated. Integrate the sensor into the automatic calibration system. The user uses the interface to start calibration and start collecting data. At the same time, a standard meter is required to input real data. Since the air quality sensor is sensitive to temperature, temperature changes will affect the accuracy of the sensor, so it needs to be collected in each Sensor data under different temperatures and different air quality environments. After a large amount of data collection, the system automatically creates a good model for the sensor after training and completes automatic calibration. In this way, the sensor can get more accurate results at different temperatures. The effect of temperature on the sensor is eliminated.
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Abstract
Description
图5为本发明的整个系统校准流程示意图。
Claims (10)
- 一种传感器的自动校准系统,其特征在于:包括传感器终端、网关、云平台、标准计量模块、校准模块、大数据平台;所述传感器终端包括多个传感器,所述传感器为目标校准对象,且所述传感器用于采集传感器数据并上传至网关;所述网关用于将传感器和云平台进行网络连接,并将传感器所上传的传感器数据传递给云平台;所述标准计量模块、校准模块、大数据平台均连接于云平台上;所述标准计量模块用于获取各个传感器对应的传感器数据的真实值数据,并传递给云平台;所述云平台用于将获得的传感器数据、真实值数据传递给大数据平台;所述大数据平台用于将获得的传感器数据、真实值数据以及自动统计的且影响传感器准确度的其他条件数据存储并传递给校准模块;所述校准模块用于对获得的传感器数据、真实值数据以及自动统计的且影响传感器准确度的其他条件数据进行分析,获得目标校准的传感器相应的校准模型;所述校准模型用于在传感器校准时校准数据并输出校准后的结果。
- 根据权利要求1所述的传感器的自动校准系统,其特征在于:所述传感器终端中的一部分传感器组成基础环境传感器,所述基础环境传感器为预选出的对其他传感器的准确度造成影响的物理参数所对应的传感器。
- 根据权利要求2所述的传感器的自动校准系统,其特征在于:所述校准模块包括获取数据模块、数据过滤模块以及数据建模模块;所述获取数据模块用于从大数据平台上获取数据;所述数据过滤模块用于将获取数据模块中的数据进行过滤筛选,以去除异常数据以及重复数据;所述数据建模模块用于对目标校准的传感器生成相关性条件列表、校准排 序列表以及校准模型;所述相关性条件列表为由通过变量相关性计算方法从基础环境传感器、其他条件数据中筛选出的对目标校准的传感器的准确度造成影响的物理参数所对应的传感器或其他条件数据组成;所述校准排序列表为参照各个目标校准的传感器对应的相关性列表排序出的每个传感器对整个系统中的传感器的准确度的影响程度,并以对整个系统中的传感器的准确度影响大小的顺序进行排序;所述校准模型用于按照校准排序列表的顺序并参照真实值数据对目标校准的传感器进行校准。
- 根据权利要求3所述的传感器的自动校准系统,其特征在于:所述系统还包括机器学习模块,所述机器学习模块连接于大数据平台和校准模块上;所述机器学习模块用于校准模块自身生成的校准模型准确度较低时启用并生成新的校准模型以替代校准模块自身生成的校准模型;所述机器学习模块用于从校准模块处获得目标校准的传感器的相关性条件列表,并从大数据平台中获得上述相关性列表中的传感器数据,将这些传感器数据进行特征化处理;同时所述机器学习模块用于从大数据平台上获得目标校准的传感器的传感器数据、真实值数据以及相关性条件列表中的其他条件数据;所述机器学习模块基于上述获得的数据进行机器学习,获得目标校准的传感器的校准模型。
- 根据权利要求4所述的传感器的自动校准系统,其特征在于:所述机器学习模块按照如下方法进行学习:步骤1、参照相关性条件列表,为目标校准的传感器模拟不同的环境条件;步骤2、记录一段时间内各个环境条件下该目标校准的传感器的传感器数据,并求取其特征值,同时获得对应环境条件下的真实值;步骤3、参照真实值和特征值进行机器学习,获得校准模型。
- 根据权利要求4所述的传感器的自动校准系统,其特征在于:所述校准 模块自身生成的校准模型的准确度指标包括校准结果与真实值之间的和方差、误差平方和、均方差、均方根、标准差、确定系数中的一种或几种。
- 根据权利要求1-6中任意一条所述的传感器的自动校准系统,其特征在于:所述校准模型存储于传感器终端和/或云平台上。
- 一种传感器的自动校准方法,其特征在于:所述传感器终端中的传感器采集传感器数据并上传至网关;网关将传感器和云平台进行网络连接,并将传感器所上传的传感器数据传递给云平台;标准计量模块获取各个传感器对应的传感器数据的真实值数据,并传递给云平台;云平台将获得的传感器数据、真实值数据传递给大数据平台;大数据平台将获得的传感器数据、真实值数据以及自动统计的且影响传感器准确度的其他条件数据进行存储并传递给校准模块;校准模块对获得的传感器数据、真实值数据以及自动统计的且影响传感器准确度的其他条件数据进行分析,获得目标校准的传感器相应的校准模型;校准模型在传感器校准时校准数据并输出校准后的结果。
- 根据权利要求8所述的传感器的自动校准方法,其特征在于:校准模块包括获取数据模块、数据过滤模块以及数据建模模块;所述获取数据模块从大数据平台上获取数据;所述数据过滤模块将获取数据模块中的数据进行过滤筛选,以去除异常数据以及重复数据;所述数据建模模块对目标校准的传感器生成相关性条件列表、校准排序列表以及校准模型;所述相关性条件列表为由通过变量相关性计算方法从基础环境传感器、其他条件数据中筛选出的对目标校准的传感器的准确度造成影响的物理参数所对应的传感器或其他条件数据组成;所述基础环境传感器为从传感器终端中预选 出的对其他传感器的准确度造成影响的物理参数所对应的传感器;所述校准排序列表为参照各个目标校准的传感器对应的相关性列表排序出的每个传感器对整个系统中的传感器的准确度的影响程度,并以对整个系统中的传感器的准确度影响大小的顺序进行排序;所述校准模型按照校准排序列表的顺序并参照真实值数据对目标校准的传感器进行校准。
- 根据权利要求9所述的传感器的自动校准方法,其特征在于:所述校准模块自身生成的校准模型准确度较低时启用机器学习模块并生成新的校准模型替代校准模块自身生成的校准模型;所述机器学习模块从校准模块处获得目标校准的传感器的相关性条件列表,并从大数据平台中获得上述相关性列表中的传感器数据,将这些传感器数据进行特征化处理;同时所述机器学习模块从大数据平台上获得目标校准的传感器的传感器数据、真实值数据以及相关性条件列表中的其他条件数据;所述机器学习模块基于上述获得的数据进行机器学习,获得目标校准的传感器的校准模型。
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