CN210294158U

CN210294158U - Magnetic method detecting instrument

Info

Publication number: CN210294158U
Application number: CN201921344392.8U
Authority: CN
Inventors: 杨勇; 刘超; 王凯; 黄晓亮
Original assignee: China Petroleum and Chemical Corp; Technology Inspection Center of Sinopec Shengli Oilfield Co; Shengli Oilfield Testing and Evaluation Research Co Ltd
Current assignee: China Petroleum and Chemical Corp; Technology Inspection Center of Sinopec Shengli Oilfield Co; Shengli Oilfield Testing and Evaluation Research Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-04-10
Anticipated expiration: 2029-08-19

Abstract

The utility model belongs to the technical field of the metal pipeline magnetic method detects, especially, relate to a magnetic method detecting instrument. The magnetic method detection instrument has compact structure and complete functions, can realize the field systematic work of data processing, analysis, display, storage and the like of the magnetic data of the pipeline to be detected, and provides help for improving the working efficiency of magnetic method detection. A magnetic detection apparatus comprising: an embedded control mainboard; the device comprises a first magnetic sensor data acquisition circuit and a second magnetic sensor data acquisition circuit; the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are connected with the embedded control mainboard through serial ports after being interconnected; the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are respectively connected with a three-component magnetic sensor through an aviation plug; a GPS data sampling circuit; the GPS data sampling circuit is connected with the embedded control main board through a serial port and is also connected with a GPS antenna.

Description

Magnetic method detecting instrument

Technical Field

The utility model belongs to the technical field of the metal pipeline magnetic method detects, especially, relate to a magnetic method detecting instrument.

Background

In order to ensure the safety of the underground metal pipeline in use and operation, technicians need to timely detect the corrosion of the pipe body of the underground metal pipeline and the mechanical loss condition of the underground metal pipeline. The magnetic detection is an efficient, convenient and damage-free detection method, and the pressure and corrosion fatigue damage of the metal pipeline can be evaluated by detecting the magnetic signal of the test piece to be detected. However, the inventor finds that the existing magnetic detection instrument has single function, and can only complete field data acquisition work mostly; and then, the special data transmission line is used for data transmission, and other instruments are used for completing data analysis, so that time and labor are wasted, and the working efficiency of magnetic detection is not improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a magnetic method detecting instrument, this magnetic method detecting instrument compact structure, function are perfect, can realize on-the-spot a system work such as data processing, analysis, demonstration, storage to the pipeline magnetic data that awaits measuring to provide help for improving the work efficiency that the magnetic method detected.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a magnetic detection apparatus comprising:

an embedded control mainboard;

the device comprises a first magnetic sensor data acquisition circuit and a second magnetic sensor data acquisition circuit; the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are connected with the embedded control mainboard through serial ports after being interconnected; the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are respectively connected with a three-component magnetic sensor through an aviation plug;

a GPS data sampling circuit; the GPS data sampling circuit is connected with the embedded control main board through a serial port and is also connected with a GPS antenna;

the chip type of the embedded control mainboard is ENC 5891; the GPS data sampling circuit and the embedded control main board realize communication interconnection through an NMEA-0183 protocol; the data sampling rates of the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are higher than the data sampling rate of the GPS data sampling circuit.

Further, the method also comprises the following steps: the device comprises a USB storage unit and a liquid crystal touch screen;

the USB storage unit is connected with the embedded control mainboard through a USB interface; the liquid crystal touch screen is connected with the embedded control mainboard through the HDMI display interface.

Further, the method also comprises the following steps: and the voltage display unit is used for displaying the loading voltage value in the working process of the embedded control mainboard.

Preferably, the data sampling rate of the GPS data sampling circuit is 1 group/second; the data sampling rate of the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit is 20 groups/second

The utility model provides a magnetism method detecting instrument, this magnetism method detecting instrument be including embedded control mainboard, first magnetic sensor data acquisition circuit, second magnetic sensor data acquisition circuit, GPS data sampling circuit, USB memory cell, liquid crystal touch-sensitive screen and voltage display unit isotructure unit. The magnetic detection instrument with the structural characteristics can synchronously acquire the magnetic signal data of the pipeline to be detected and the GPS position data, and can complete the real-time processing, displaying and storing of the data.

Drawings

Fig. 1 is a block diagram of a magnetic detection instrument according to the present invention;

FIG. 2 is a circuit diagram of a typical application of an ENC5891 embedded control motherboard;

fig. 3 is a circuit diagram of a typical application of the voltage display unit.

Detailed Description

The first embodiment is as follows:

as shown in FIG. 1, the utility model provides a magnetic method detecting instrument. Specifically, the magnetic detection instrument comprises an embedded control mainboard, a first magnetic sensor data acquisition circuit, a second magnetic sensor data acquisition circuit, a GPS data sampling circuit, a USB storage unit, a liquid crystal touch screen and a voltage display unit. The embedded control mainboard adopts an industrial control mainboard based on a windows operating system. The embedded control motherboard chip model preferably adopts ENC5891, as shown in FIG. 2, and FIG. 2 shows a typical circuit schematic diagram of ENC 5891. Specifically, the control mainboard of this model possesses following characteristics: intel following 100 # solar Rail processors N2600/2800; onboard 2GB DDR 3; 3600 Intel 3600 series of graphic media accelerators; 6 USB interface, 2 COMs, 1 Mini-PCIe, support 3G network; 2, the 2X Intel gigabit network card supports the m-SATA solid state disk; direct current 12V input, high-quality 2KV EFT protection; extended stage temperatures are designed for industrial applications.

As shown in fig. 1, the first magnetic sensor data acquisition circuit, the second magnetic sensor data acquisition circuit and the GPS data sampling circuit are used as data signal output terminals of the embedded control motherboard. On one hand, the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are interconnected and communicated with each other firstly, and then are further connected with the embedded control mainboard through a serial port; on the other hand, the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit are respectively connected with a three-component magnetic sensor through aviation plugs, so that a magnetic probe structure is formed. Specifically, optionally, five cable data lines are respectively configured in the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit, and a 10-core output line is correspondingly configured on the aviation plug; the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit respectively integrate magnetic signal data acquired by three-component magnetic sensors which are connected with each other, and then the related data are output to the embedded control mainboard through serial ports, so that the acquisition and transmission work of the magnetic signals of the underground metal pipeline to be detected can be completed. The GPS data sampling circuit is used for collecting GPS position data in real time, the collecting process is completed by the connected GPS antenna, and the collected GPS position data is finally transmitted to the embedded control mainboard through the serial port in the same way (in order to ensure the communication timeliness of the GPS data sampling circuit, the GPS data sampling circuit and the embedded control mainboard are communicated and interconnected by using an NMEA-0183 protocol). Wherein, as the utility model relates to a comparatively preferred embodiment, first magnetic sensor data acquisition circuit, second magnetic sensor data acquisition circuit's data sampling rate all is higher than GPS data sampling circuit's data sampling rate. Specifically, the sampling rate of the GPS data may be selected to be 1 group/second, and the sampling rate of the magnetic field data of the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit is preferably 20 groups/second.

Example two:

as shown in fig. 1, the magnetic detection apparatus further comprises: USB memory cell and liquid crystal touch screen. The USB storage unit is connected with the embedded control mainboard through a USB interface. It is noted that to further standardize the magnetic field data format, the magnetic field data may be fixedly stored and output in the following format. For example: "point number, date, time, GPS status, latitude, longitude, elevation, total serial number, X1, Y1, Z1, T1, X2, Y2, Z2, T2". Wherein: x1, Y1, Z1, X2, Y2 and Z2 represent six magnetic field values, and T1 is the modulus of three magnetic field components of X1, Y1 and Z1; t2 is the modulus of three magnetic field components X2, Y2 and Z2. The liquid crystal touch screen is connected with the embedded control mainboard through the HDMI display interface.

Example three:

the magnetic detection instrument also comprises: and a voltage display unit. As shown in fig. 3, fig. 3 shows a typical circuit schematic of a voltage display unit. The model of the voltage display unit selects an ATtiny24A unit chip machine, and the voltage display unit specifically configures and selects a 4M internal clock and an ADC clock with frequency division of 64 and 125K; the voltage display unit is used for displaying a loading voltage value in the working process of the embedded control mainboard. In addition, the magnetic detection instrument can also be selectively provided with a power supply (12V lithium battery) and a power switch. And the power supply is loaded into each structural unit of the magnetic detection instrument by switching on the power switch to complete power supply. Meanwhile, a charging port can be preferably configured, and the power supply is connected with an external charger through a reverse connection protection circuit, so that continuous voyage power supply is realized and reverse charging is prevented.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A magnetic detection instrument, comprising:

an embedded control mainboard;

2. A magnetic detection apparatus as claimed in claim 1, further comprising: the device comprises a USB storage unit and a liquid crystal touch screen;

3. A magnetic detection apparatus as claimed in claim 1, further comprising: and the voltage display unit is used for displaying the loading voltage value in the working process of the embedded control mainboard.

4. A magnetic detection instrument as claimed in claim 1 wherein the GPS data sampling circuit has a data sampling rate of 1 set/second; the data sampling rate of the first magnetic sensor data acquisition circuit and the second magnetic sensor data acquisition circuit is 20 groups/second.