A detection device and a detection method for detecting the position of a detector in a pipeline

Abstract

The present invention discloses a detection device for detecting the position of a detector in a pipeline, comprising: a housing, a controller arranged in the housing, a data acquisition card, a GPS module and a WiFi module connected to the controller, an antenna arranged on the housing and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of the pipeline; an interface for connecting the acceleration sensor and the data acquisition card is arranged on the housing; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, and timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends it to an external monitoring platform through the WiFi module. The present invention also discloses a detection method for detecting the position of a detector in a pipeline. The present invention has a simple structure, is easy to use, and is suitable for popularization and use.

Description

Technical Field

[0001] The present invention relates to the field of pipeline defect detection, and in particular to a detection device and a detection method for detecting the position of a detector in a pipeline. Background Art

[0002] At present, detection devices, including data acquisition, data acquisition (DAQ), refer to the automatic collection of non-electrical or electrical signals from analog and digital units under test such as sensors and other devices under test, and sending them to the host computer for analysis and processing. The data acquisition system is a flexible, user-defined measurement system that combines measurement software and hardware products based on computers or other special test platforms. The acquisition is generally a sampling method, that is, the same point data is repeatedly collected at a certain interval (called the sampling period). Most of the collected data are instantaneous values, or they can be a characteristic value within a certain period of time. Accurate data measurement is the basis of data acquisition. There are contact and non-contact data measurement methods, and there are many types of detection elements. Regardless of the method and element, it is based on the premise of not affecting the state of the object under test and the measurement environment to ensure the correctness of the data.

[0003] With the rapid development of the Internet industry, data collection has been widely used in the Internet and distributed fields, and important changes have taken place in the field of data collection. With the expansion and development of the world's energy demand, pipeline transportation has become one of the five major means of transportation parallel to railways, roads, aviation, and water transportation. Pipeline defect corrosion detection is particularly important. Pipeline internal detector detection technology is an important technology for pipeline defect detection. The internal detector may get stuck when running in the pipeline. The internal detector determines the defect location of the pipeline through leakage magnetic inversion technology. The positioning of the internal detector in the pipeline is particularly important. Summary of the invention

[0004] The present invention provides a detection device and a detection method for detecting the position of a detector in a pipeline in order to solve the technical problems existing in the known technology.

[0005] The present invention adopts a technical solution to solve the technical problems existing in the known technology: a detection device for detecting the position of a detector in a pipeline, comprising: a shell, a controller arranged in the shell and a data acquisition card, a GPS module and a WiFi module connected to the controller, an antenna arranged on the shell and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of the pipeline; an interface is arranged on the shell, and the acceleration sensor is connected to the data acquisition card through the interface; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, and timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends the detection data of the acceleration sensor with the timestamp to an external monitoring platform through the WiFi module.

[0006] Furthermore, it also includes a data storage device; the data storage device is connected to the controller and is used to store the detection data of the acceleration sensor with a time stamp.

[0007] Furthermore, it also includes a power management module; the power management module is connected to the controller and is used to provide power to the controller and the circuit connected to the controller.

[0008] Furthermore, the power management module includes a charging module, and the shell is provided with a charging port connected to the charging module.

[0009] Furthermore, a switch for controlling the start and stop of the controller is provided on the housing.

[0010] Furthermore, the acceleration sensor is a pressed sheet acceleration sensor.

[0011] The present invention also provides a detection method for detecting the position of a detector in a pipeline, the method adopts the following device: a shell, a controller arranged in the shell and a data acquisition card, a GPS module and a WiFi module connected to the controller, an antenna arranged on the shell and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of the pipeline; an interface is provided on the shell, and the acceleration sensor is connected to the data acquisition card through the interface; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends the detection data of the acceleration sensor with the timestamp to an external monitoring platform through the WiFi module.

[0012] Furthermore, the shell is placed near the pipeline, the acceleration sensor is installed on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline, the controller is started to receive the signal of the GPS module, and the system time of the controller is calibrated; the data acquisition card collects the analog signal of the acceleration sensor, converts the analog signal into a digital signal and sends it to the controller; when the controller receives the data input by the data acquisition card, it timestamps the detection data; it preliminarily analyzes the detection data to determine whether the detection data is valid detection data, and then sends the valid detection data to the external monitoring platform.

[0013] Furthermore, the acceleration sensor is installed on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline through strong magnetic adsorption.

[0014] Furthermore, the sampling frequency of the data acquisition card is set in the controller, the controller adds a timestamp to each sampled detection data, and sets a signal amplitude threshold for determining whether the detection data is valid detection data; when the signal amplitude exceeds the threshold, the controller will send the detection data at this moment and the previous 10 seconds to the external monitoring platform, and store a copy locally; when the signal amplitude continues to be lower than the threshold for 10 seconds, the controller stops sending the detection data to the external monitoring platform.

[0015] The advantages and positive effects of the present invention are as follows: a detection device for detecting the position of a detector in a pipeline has a compact structure, does not require on-site layout of power lines and data transmission lines, and the sensor and the pipeline are firmly connected by strong magnetic adsorption, and the device can be installed at any position of the pipeline. The selected acceleration sensor can collect the vibration signal generated by the friction between the internal detector and the pipe wall, and transmit it to the controller through the data acquisition card. The controller timestamps each segment of data to ensure the real-time nature of the data, and determines whether the data needs to be sent to the host computer after passing the threshold, and transmits the data in real time by wireless. The present invention has a simple structure, a reasonable design, and is easy to use, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the system structure of a detection device for detecting the position of a detector in a pipeline.

[0017] Figure 2 The present invention is a schematic diagram of the appearance structure of a detection device for detecting the position of a detector in a pipeline.

[0018] In the figure: 1. Shell; 2. Antenna; 3. Charging port; 4. Switch. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are listed and described in detail with reference to the accompanying drawings:

[0020] See also Figure 1 to Figure 2 A detection device for detecting the position of a detector in a pipeline, comprising: a housing 1, a controller arranged in the housing 1 and a data acquisition card, a GPS module and a WiFi module connected to the controller, an antenna 2 arranged on the housing 1 and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of the pipeline; an interface is provided on the housing 1, and the acceleration sensor is connected to the data acquisition card through the interface; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, and timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends the detection data of the acceleration sensor with the timestamp to an external monitoring platform through the WiFi module. The interface connecting the acceleration sensor and the data acquisition card can be a BNC interface.

[0021] To facilitate on-site analysis of detection data, the detection device may further include a data storage device; the data storage device is connected to the controller and can be used to store detection data of the acceleration sensor with a time stamp for the controller to call and process.

[0022] For portability and field application, a power management module may also be included; the power management module is connected to the controller and is used to provide power to the controller and the circuit connected to the controller. The power management module may include a charging module, and the housing 1 may be provided with a charging port 3 connected to the charging module. The power management module may use a rechargeable battery to provide power to the controller and the circuit connected to the controller. A non-rechargeable battery may also be used, or an external power source, such as a GPS power source, may be used.

[0023] To facilitate the control of the operation of the entire device, a switch may be provided on the housing 1, for example, a switch 4 for controlling the start and stop of the controller may be provided on the housing 1. The switch 4 may be connected to the power management module circuit to control the start and stop of the controller by turning on and off the power of the controller, and the switch may also be used to reset the controller.

[0024] An antenna 2 may be provided on one side of the housing 1, a switch 4 may be provided on the right side of the antenna 2, and an interface for connecting the acceleration sensor and the data acquisition card may be provided below the antenna 2. A charging port 3 may be provided on the other side of the housing. The panel on the housing may be fixed by screws.

[0025] The acceleration sensor can be any suitable acceleration sensor capable of detecting pipeline vibration, and the acceleration sensor is preferably a pressed sheet acceleration sensor, which is small in size, easy to install, and has high accuracy.

[0026] The present invention also provides a detection method for detecting the position of a detector in a pipeline, the method adopts the following device: a shell 1, a controller arranged in the shell 1 and a data acquisition card, a GPS module and a WiFi module all connected to the controller, an antenna 2 arranged on the shell 1 and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of the pipeline; an interface is provided on the shell 1, and the acceleration sensor is connected to the data acquisition card through the interface; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends the detection data of the acceleration sensor with the timestamp to an external monitoring platform through the WiFi module.

[0027] The method of adding time stamps to real-time collected data in the prior art can be used to add time stamps to each collected detection data.

[0028] A method for using the device is as follows: the shell 1 can be placed near the pipeline, the acceleration sensor can be installed on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline, the controller can be started to receive the signal of the GPS module, and the system time of the controller can be corrected; the data acquisition card can acquire the analog signal of the acceleration sensor, and the analog signal can be converted into a digital signal and then sent to the controller; when the controller receives the data input by the data acquisition card, the controller can timestamp the detection data; the controller can preliminarily analyze the detection data to determine whether the detection data is valid detection data, and then send the valid detection data to the external monitoring platform.

[0029] The acceleration sensor can be installed on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline through strong magnetic adsorption or bonding with an adhesive.

[0030] The sampling frequency of the data acquisition card can be set in the controller. The controller adds a timestamp to each sampled detection data and sets a signal amplitude threshold for determining whether the detection data is valid detection data. When the signal amplitude exceeds the threshold, the controller sends the detection data at this moment and the previous 10 seconds to the external monitoring platform and stores a copy locally. When the signal amplitude remains below the threshold for 10 seconds, the controller stops sending detection data to the external monitoring platform.

[0031] The above-mentioned controller, data acquisition card, GPS module, WiFi module, antenna 2, acceleration sensor, power management module, charging module, interface and other components and devices can all adopt applicable components and devices in the prior art. Or they can be constructed by using components and devices in the prior art, and conventional technical means can be used to connect and debug the components according to the instruction manual.

[0032] Working principle of the present invention:

[0033] When using this kind of detection device with external positioning of the detector inside the pipeline, first fully charge the device, then place the device near the pipeline, stick the sensor to the sampling point, turn on switch 4, the GPS module will perform time correction on the controller system, and when the controller receives the data from the acquisition card, it will first timestamp each data, analyze and summarize it, and determine whether it needs to be sent to the host computer, and finally send the valid data to the host computer, which will analyze and determine the specific time when the internal detector passes the sampling point.

[0034] The acceleration sensor and the pipeline are firmly connected by strong magnetic adsorption. The device can be installed at any position of the pipeline. The acceleration sensor collects the vibration signal generated by the friction between the internal detector and the pipe wall, and transmits it to the controller through the data acquisition card. The controller timestamps each segment of data to ensure the real-time nature of the data. After passing the threshold, it is judged whether the data needs to be sent to the host computer. The judgment principle is: when the signal amplitude exceeds the threshold, the controller will send the data of this moment and the previous 10 seconds to the host computer, and store a copy locally. When the signal amplitude continues to be lower than the threshold for 10 seconds, the lower computer will no longer send data. The present invention performs real-time data transmission wirelessly, has a simple structure, a reasonable design, is easy to use, and is suitable for popularization and use.

[0035] The embodiments described above are only used to illustrate the technical ideas and features of the present invention, and their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The patent scope of the present invention cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present invention still fall within the patent scope of the present invention.

Claims

1. A detection device for detecting the position of a detector in a pipeline, characterized in that: The system comprises: a housing, a controller arranged in the housing, a data acquisition card, a GPS module and a WiFi module connected to the controller, an antenna arranged on the housing and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of a pipeline; the housing is provided with an interface, and the acceleration sensor is connected to the data acquisition card through the interface; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, and timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends the detection data of the acceleration sensor with the timestamp to an external monitoring platform through the WiFi module; The acceleration sensor is installed on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline through strong magnetic adsorption.

2. The detection device for detecting the position of a detector in a pipeline according to claim 1, characterized in that: It also includes a data storage device; the data storage device is connected to the controller and is used to store the detection data of the acceleration sensor with a time stamp.

3. The detection device for detecting the position of a detector in a pipeline according to claim 1, characterized in that: It also includes a power management module; the power management module is connected to the controller and is used to provide power to the controller and the circuit connected to the controller.

4. The detection device for detecting the position of a detector in a pipeline according to claim 3, characterized in that: The power management module includes a charging module, and a charging port connected to the charging module is provided on the shell.

5. The detection device for detecting the position of a detector in a pipeline according to claim 1, characterized in that: The shell is provided with a switch for controlling the start and stop of the controller.

6. The detection device for detecting the position of a detector in a pipeline according to claim 1, characterized in that: The acceleration sensor is a pressed sheet acceleration sensor.

7. A method for detecting the position of a detector in a pipeline, characterized in that: The method adopts the following device: a shell, a controller arranged in the shell and a data acquisition card, a GPS module and a WiFi module connected to the controller, an antenna arranged on the shell and connected to the GPS module and the WiFi module, and an acceleration sensor installed on the outer wall of the pipeline; an interface is arranged on the shell, and the acceleration sensor is connected to the data acquisition card through the interface; the acceleration sensor collects vibration signals generated by the friction between the detector in the pipeline and the pipe wall, and sends the collected signals to the controller through the data acquisition card; the controller receives the signal from the GPS module, timestamps the detection data from the acceleration sensor through the time information provided by the GPS module, and then sends the detection data of the acceleration sensor with the timestamp to an external monitoring platform through the WiFi module; The acceleration sensor is installed on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline through strong magnetic adsorption.

8. The method for detecting the position of a detector in a pipeline according to claim 7, characterized in that: Place the housing near the pipeline, install the acceleration sensor on the outer wall of the pipeline corresponding to the sampling point of the detector in the pipeline, start the controller to receive the signal of the GPS module, and perform system time correction on the controller; the data acquisition card collects the analog signal of the acceleration sensor, converts the analog signal into a digital signal and sends it to the controller; when the controller receives the data input by the data acquisition card, it timestamps the detection data; It preliminarily analyzes the detection data to determine whether the detection data is valid detection data, and then sends the valid detection data to the external monitoring platform.

9. The method for detecting the position of a detector in a pipeline according to claim 8, characterized in that: The sampling frequency of the data acquisition card is set in the controller. The controller timestamps each sampled detection data and sets a signal amplitude threshold for determining whether the detection data is valid detection data. When the signal amplitude exceeds the threshold, the controller sends the detection data at this moment and the previous 10 seconds to the external monitoring platform and stores a copy locally. When the signal amplitude remains below the threshold for 10 seconds, the controller stops sending detection data to the external monitoring platform.

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