WO2021131133A1

WO2021131133A1 - Magnetic sensing system and display method for magnetic sensing

Info

Publication number: WO2021131133A1
Application number: PCT/JP2020/029553
Authority: WO
Inventors: 剛士大野
Original assignee: 株式会社島津製作所
Priority date: 2019-12-25
Filing date: 2020-07-31
Publication date: 2021-07-01
Also published as: JP7259996B2; JPWO2021131133A1

Abstract

This magnetic sensing system (100) includes: a plurality of magnetic sensors (1) that are installed in water and acquire a magnetic signal (S); a display unit (32) that displays an ordered list of magnetic waveform information (Sa) sets of magnetic signals (S) from the plurality of magnetic sensors (1); and a control unit that controls displaying, on the display unit (32), the ordered list of the magnetic waveform information (Sa) sets of the magnetic signals (S) from the plurality of magnetic sensors (1).

Description

Magnetic detection system and display method for magnetic detection

The present invention relates to a magnetic detection system and a display method for magnetic detection.

Conventionally, a magnetic detection system that detects a magnetic material with a magnetic sensor is known. Such a diagnostic support method is disclosed in, for example, Japanese Patent Application Laid-Open No. 2013-156225.

The magnetic detection system described in Japanese Patent Application Laid-Open No. 2013-156225 detects a magnetic substance (detection target) passing in the vicinity of the magnetic sensor. This magnetic detection system includes a plurality of magnetic sensors and a computer. The magnetic sensor measures the magnetic waveform (observation data). The computer includes a control unit that detects and determines a magnetic material based on observation data captured from each of a plurality of magnetic sensors, and a display unit that displays determination results and observation waveforms by the control unit. Then, when the control unit determines that the magnetic signal caused by the magnetic material is detected by determining whether or not the magnetic waveform of the observation data is the magnetic signal caused by the magnetic material, the control unit determines the magnetism caused by the magnetic material. The fact that the signal has been detected is displayed on the display unit.

Japanese Unexamined Patent Publication No. 2013-156225

Here, although not specified in Japanese Patent Application Laid-Open No. 2013-156225, information acquired for each magnetic sensor such as an observed waveform is collectively (superimposed) displayed on the display unit for a plurality of magnetic sensors. Can be considered. In this case, it is conceivable that the visibility of the displayed information is lowered because the information about the plurality of magnetic sensors is displayed together (superimposed). For example, when the observation waveforms acquired by each of a plurality of magnetic sensors are collectively displayed, and when one of the plurality of magnetic sensors acquires a magnetic signal caused by a magnetic material, which magnetic sensor is used. It becomes difficult to distinguish whether the magnetic waveform in the above is due to a magnetic signal caused by a magnetic material. Therefore, even when a magnetic signal is acquired and displayed by a plurality of magnetic sensors, a magnetic detection system capable of improving the visibility of information about each of the plurality of magnetic sensors and a display method for magnetic detection are desired. It is rare.

The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to obtain and display a magnetic signal by a plurality of magnetic sensors of a plurality of magnetic sensors. It is an object of the present invention to provide a magnetic detection system capable of improving the visibility of information about each and a display method for magnetic detection.

In order to achieve the above object, the magnetic detection system according to the first aspect of the present invention is installed in water and obtains magnetic signals from a plurality of magnetic sensors and information on the magnetic signals for each of the plurality of magnetic sensors. It includes a display unit that displays a list side by side, and a control unit that controls to display a list of magnetic signal information about each of a plurality of magnetic sensors side by side on the display unit.

The display method for magnetic detection in the second aspect of the present invention includes a step of acquiring a magnetic signal detected by each of a plurality of magnetic sensors installed in water, and a step of acquiring a magnetic signal for each of the plurality of magnetic sensors. It includes a step of arranging and listing information side by side.

In the magnetic detection system in the first aspect and the display method for magnetic detection in the second aspect, the magnetic signal information for each of the plurality of magnetic sensors is displayed side by side in a list. As a result, the magnetic signal information for each of the plurality of magnetic sensors is displayed side by side in a list. Therefore, even when the magnetic signals are acquired and displayed by the plurality of magnetic sensors, the information about each of the plurality of magnetic sensors is displayed. Information can be displayed in an identifiable manner. As a result, the user can easily distinguish and visually recognize the magnetic signals for each of the plurality of magnetic sensors displayed in the list, so that even when the magnetic signals are acquired and displayed by the plurality of magnetic sensors, a plurality of magnetic signals are displayed. The visibility of information about each of the magnetic sensors can be improved.

It is a figure for demonstrating the structure of the magnetic detection system by 1st Embodiment. It is a block diagram for demonstrating the structure of the magnetic detection system by 1st Embodiment. It is a figure for demonstrating the display of the display part by 1st Embodiment. It is a figure for demonstrating the magnetic waveform information by 1st Embodiment, (A) is magnetic waveform information caused by constant noise, (B) is magnetic waveform information caused by the passage of a magnetic material. is there. It is a figure for demonstrating the generation of the classifier by 1st Embodiment. It is a figure for demonstrating the memory of the memory control part by 1st Embodiment. It is a figure for demonstrating the annotation information by 1st Embodiment. It is a figure for demonstrating the display in the magnetic sensor information area by 1st Embodiment. It is a figure for demonstrating the determination notification display by 1st Embodiment, (A) is a figure showing a normal display, (B) is a figure which shows a caution display, and (C) is a figure which shows a warning display. It is a figure for demonstrating the detailed display by 1st Embodiment. It is a figure for demonstrating the display of the stored magnetic signal by 1st Embodiment. It is a figure for demonstrating the report information by 1st Embodiment. It is a figure (flow chart) for demonstrating the display method for magnetic detection by 1st Embodiment. It is a figure (flow chart) for demonstrating the display method of the memorized magnetic signal by 1st Embodiment. It is a block diagram for demonstrating the structure of the magnetic detection system by 2nd Embodiment. It is a figure for demonstrating the display of the display part by 2nd Embodiment. It is a figure for demonstrating the display of the display part by the 1st modification of 1st and 2nd Embodiment. It is a figure for demonstrating the display of the display part by the 2nd modification of 1st and 2nd Embodiment. It is a figure for demonstrating the display of the display part by the 3rd modification of 1st and 2nd Embodiment.

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

[First Embodiment]
(Overall configuration of magnetic detection system)
The magnetic detection system 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 12.

As shown in FIG. 1, the magnetic detection system 100 according to the present embodiment includes a plurality of (9) magnetic sensors 1, a receiving unit 2, and a computer 3 installed in the detection area Q. The magnetic detection system 100 according to the present embodiment is a system that detects the passage of the magnetic body P by detecting the magnetic signal S caused by the magnetic body P. The user who monitors the passage (intrusion) of the magnetic material P can grasp the presence or absence of the passage of the magnetic material P (by monitoring the display unit 32) based on the determination result R output by the magnetic detection system 100. It is possible. In addition, the user can consider countermeasures depending on whether or not the magnetic material P has passed. The magnetic sensor 1 is provided in, for example, a harbor. Further, the magnetic material P includes a ship, a diver (diver) and the like.

The magnetic sensor 1 is installed in the sea (seabed). In the present embodiment, a plurality of magnetic sensors 1 are installed in the detection region Q for detecting the presence or absence of passage of the magnetic body P. The magnetic sensor 1 includes, for example, a first magnetic sensor 11, a second magnetic sensor 12, a third magnetic sensor 13, a fourth magnetic sensor 14, a fifth magnetic sensor 15, a sixth magnetic sensor 16, a seventh magnetic sensor 17, and a seventh. 8 magnetic sensor 18 and 9th magnetic sensor 19 are included. Each of the plurality of magnetic sensors 1 is installed so as to be separated from each other, and is wiredly connected to the receiving unit 2. The magnetic sensor 1 acquires a magnetic signal S caused by the passage of the magnetic body P. Further, the magnetic sensor 1 is configured to output, for example, the acquired magnetic signal S as an optical signal to a receiving unit 2 installed on land. The magnetic sensor 1 is configured to output the magnetic signal S acquired by a predetermined sampling period. The magnetic sensor 1 includes, for example, a fluxgate type sensor. Further, in the present embodiment, the predetermined sampling cycle is set to 0.5 seconds. The predetermined sampling period can be arbitrarily changed.

The receiving unit 2 is wiredly connected to the magnetic sensor 1 and receives the magnetic signal S acquired by the magnetic sensor 1. Then, the receiving unit 2 converts the received magnetic signal S, which is an optical signal, into an electric signal. Further, the receiving unit 2 is connected to the computer 3 by wire and transmits the magnetic signal S converted into an electric signal to the computer 3.

As shown in FIG. 2, the computer 3 includes an operation unit 31, a display unit 32, a control unit 33, and a storage unit 34. The computer 3 is, for example, a computer terminal used by a user in a land monitoring facility.

The operation unit 31 accepts an input operation by the user. The operation unit 31 includes, for example, a pointing device such as a keyboard and a mouse. Specifically, the operation unit 31 accepts a selection operation for selecting one magnetic waveform information Sa from the information (magnetic waveform information Sa) of a plurality of magnetic signals S corresponding to the plurality of magnetic sensors 1. .. Further, the operation unit 31 accepts an operation for changing the display target period T of the magnetic waveform information Sa displayed on the display unit 32. The magnetic waveform information Sa is a graph display of the acquired magnetic signal S with the horizontal axis as the time axis and the vertical axis as the signal strength. The magnetic waveform information Sa is a waveform representation of the acquired magnetic signal S. The details of the magnetic waveform information Sa and the display target period T will be described later. Further, the magnetic waveform information Sa is an example of "magnetic signal information" in the claims.

The display unit 32 includes, for example, a liquid crystal display. As shown in FIG. 3, the display unit 32 displays the magnetic waveform information Sa, which is the information of the magnetic signal S for each of the plurality of magnetic sensors 1, and the magnetism corresponding to each magnetic sensor 1 under the control of the control unit 33. The sensor information area A is displayed side by side in a list. The magnetic sensor information area A is an area for displaying information about each of the plurality of magnetic sensors 1. The details of the display of the display unit 32 will be described later.

As shown in FIG. 2, the storage unit 34 stores the magnetic signal S acquired by each of the plurality of magnetic sensors 1 under the control of the control unit 33. Further, the storage unit 34 stores the measurement data D including the magnetic signal S acquired by the magnetic sensor 1. The details of the measurement data D will be described later. Further, the storage unit 34 stores various programs executed by the control unit 33, the classifier M described later, and the like. The storage unit 34 includes, for example, an HDD (Hard Disk Drive) or a non-volatile memory.

The control unit 33 includes a pre-processing unit 33a, a determination unit 33b, a storage control unit 33c, a display control unit 33d, and an information output unit 33e as functional configurations. That is, the control unit 33 functions as a preprocessing unit 33a, a determination unit 33b, a storage control unit 33c, a display control unit 33d, and an information output unit 33e by executing the program. The control unit 33 includes, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and the like.

(About control by the control unit)
The preprocessing unit 33a is configured to perform preprocessing of the magnetic signal S. That is, the preprocessing unit 33a removes the high frequency noise component in the acquired magnetic signal S. The preprocessing unit 33a includes, for example, a low-pass filter.

<Control for acquiring judgment results>
As shown in FIGS. 4 and 5, the determination unit 33b determines whether or not the magnetic body P has passed through each of the plurality of magnetic sensors 1 based on the magnetic signal S acquired by the magnetic sensor 1. .. Specifically, the determination unit 33b is generated by machine learning with respect to the magnetic waveform generated based on the magnetic signal S acquired by the magnetic sensor 1 in a predetermined sampling period (every 0.5 seconds). The determination result R is output by performing the determination using the discriminator M which is the trained model.

The magnetic signal S acquired by the magnetic sensor 1 includes a signal caused by the passage of the magnetic body P and constant noise (noise). For example, the magnetic waveform information Sa shown in FIG. 4A is an example of the magnetic waveform information Sa generated based on the magnetic signal S having only stationary noise. The magnetic waveform information Sa shown in FIG. 4B is an example including a magnetic signal S caused by the passage of the magnetic body P. The magnetic signal S caused by the magnetic material P has a waveform having a characteristic peak (Sα in FIG. 4B).

The classifier M is stored in the storage unit 34. Then, as shown in FIG. 5, the classifier M is learned by using the simulation waveform created by simulating the magnetic signal S caused by the magnetic body P and the actually measured noise waveform. That is, the waveform obtained by superimposing the noise waveform on the simulation waveform is used for learning as teacher input data. Further, the simulation waveform is comprehensively created by setting a plurality of parameters to various values. The plurality of parameters include, for example, the magnetic direction, traveling direction, velocity, underwater depth, and lateral distance (horizontal distance) of the magnetic body P. Then, the classifier M is generated by machine learning using a plurality of simulation waveforms as teacher input data and the presence or absence of a magnetic material P corresponding to the teacher input data as teacher output data. As a method of learning the classifier M, for example, a neural network, a support vector machine, or the like is used.

The determination unit 33b is configured to output the determination result R based on the magnetic signal S acquired by the magnetic sensor 1 in a preset determination period. Specifically, the determination unit 33b outputs the determination result R based on the magnetic signal S acquired within 12 minutes, which is a preset determination period. Further, the determination unit 33b obtains a magnetic waveform generated based on the magnetic signal S acquired from the time when the magnetic signal S is acquired to the time when it goes back 12 minutes every 0.5 seconds when the magnetic signal S is acquired. As an input, the discriminator M is used to acquire the determination result R. The determination period can be changed arbitrarily.

Further, the determination unit 33b outputs a numerical value indicating the accuracy of the passage of the magnetic material P as the determination result R. The determination result R is represented by a numerical value between 0 and 1. The determination result R means that the closer the magnetic signal S is to 1, the higher the possibility that the magnetic signal S is the magnetic signal S caused by the passage of the magnetic material P.

<About memory control by the control unit>
The storage control unit 33c controls the storage of information in the storage unit 34. The storage control unit 33c stores the magnetic signal S acquired by each of the plurality of magnetic sensors 1 in the storage unit 34. Then, the memory control unit 33c acquires the magnetic substance detection information E including the determination result R indicating that the magnetic substance P has passed, based on the determination result R acquired by the determination unit 33b. The magnetic substance detection information E is information indicating that the magnetic substance P has passed. Specifically, when the determination result R output by the determination unit 33b is a value equal to or higher than a predetermined threshold value (for example, 0.9), the storage control unit 33c allows the magnetic material P to pass through. It is highly probable that the magnetic material detection information E including the determination result R indicating that the magnetic material P has passed is stored in the storage unit 34. The predetermined threshold value can be changed arbitrarily.

Further, the storage control unit 33c generates one measurement data D (see FIG. 2) every 24 hours for each of the plurality of magnetic sensors 1, for example. That is, the measurement data D includes the magnetic signal S acquired during 24 hours and the magnetic substance detection information E acquired during 24 hours. In addition to the magnetic signal S, the measurement data D includes the position information Da of the magnetic sensor 1 in the detection region Q and the time information Db about the time when the magnetic signal S is acquired. Further, the measurement data D includes the magnetic body detection information E including the determination result R indicating that the magnetic body P has passed. Further, the measurement data D includes the annotation information Dc input by the user. Further, the measurement data D includes the extracted magnetic signal S0 acquired in the storage target period U in 24 hours.

The extracted magnetic signal S0 is obtained by extracting and storing the magnetic signal S determined by the determination unit 33b to be the magnetic signal S caused by the magnetic body P from the stored magnetic signals S. That is, as shown in FIG. 6, the storage control unit 33c determines that each of the plurality of magnetic sensors 1 corresponds to the stored magnetic substance detection information E from the magnetic signals S acquired by the magnetic sensor 1. The magnetic signal S acquired in the storage target period U including at least one before and after the time when the result R is acquired is associated with the magnetic substance detection information E and stored in the storage unit 34. .. For example, with respect to the magnetic signal S acquired by the sixth magnetic sensor 16, when the determination result R is a value equal to or higher than a predetermined threshold value (for example, 0.9), the storage control unit 33c sets a predetermined value. 15 minutes before the acquisition of the magnetic signal S corresponding to the determination result R equal to or higher than the threshold value, and 15 minutes from the acquisition of the magnetic signal S corresponding to the determination result R equal to or higher than the predetermined threshold value. The 30 minutes up to the later time point are acquired as the storage target period U. Then, the storage control unit 33c stores the magnetic signal S acquired in the storage target period U as the extraction magnetic signal S0 in the storage unit 34. That is, when it is determined that the magnetic signal S caused by the magnetic body P has been acquired, the magnetic signal S suspected to be caused by the magnetic body P is extracted from the stored magnetic signals S for the entire period. And store it as the extracted magnetic signal S0.

Further, when the magnetic body detection information E is acquired by the magnetic sensor 1 of one of the plurality of magnetic sensors 1, the storage control unit 33c includes the one magnetic sensor 1 and the plurality of magnetic sensors 1. The magnetic signal S acquired in the storage target period U by another magnetic sensor 1 different from one magnetic sensor 1 is associated with the magnetic substance detection information E and stored in the storage unit 34. .. That is, when the storage target period U is acquired by the magnetic sensor 1 of one of the plurality of magnetic sensors 1, the storage control unit 33c has another magnetism adjacent to the magnetic sensor 1 from which the storage target period U has been acquired. The magnetic signal S acquired by the sensor 1 is also stored in the storage unit 34 as the extracted magnetic signal S0.

For example, as shown in FIG. 6, when the determination result R determined based on the magnetic signal S acquired by the sixth magnetic sensor 16 is a value larger than the predetermined threshold value of 0.9. Is acquired as the storage target period U of the sixth magnetic sensor 16 15 minutes before and after the acquisition of the magnetic signal S in which the determination result R is larger than 0.9 in the sixth magnetic sensor 16. .. Then, in each of the fifth magnetic sensor 15 and the seventh magnetic sensor 17 adjacent to the sixth magnetic sensor 16, the extracted magnetic signal S0 is stored in the storage unit 34 during the same period as the storage target period U in the sixth magnetic sensor 16. It will be remembered. In other words, in each of the fifth magnetic sensor 15 installed closest to the sixth magnetic sensor 16 in water and the seventh magnetic sensor 17 installed second closest to the sixth magnetic sensor 16. The extracted magnetic signal S0 is stored in the storage unit 34 in the same period as the storage target period U in the sixth magnetic sensor 16.

As described above, the storage control unit 33c stores the acquired magnetic signal S for each of the plurality of magnetic sensors 1. Then, the storage control unit 33c stores the magnetic signal S in the period including the time when the magnetic substance detection information E is acquired among the acquired magnetic signals S as the extracted magnetic signal S0. That is, the storage control unit 33c stores the magnetic signal S caused by the magnetic material P in the storage unit 34 so that it can be extracted.

Further, as shown in FIG. 7, the storage control unit 33c acquires the annotation information Dc input by the user, associates the magnetic signal S with the annotation information Dc, and stores the annotation information Dc in the storage unit 34. Specifically, the storage control unit 33c stores the annotation information Dc having an arbitrary content at an arbitrary time point of the user so that it can be visually recognized together with the magnetic waveform information Sa. The annotation information Dc is input based on, for example, an input operation to the operation unit 31. The annotation information Dc includes, for example, textual comment information, numbers, and symbols. Further, the annotation information Dc may be input by voice input by a voice acquisition unit (not shown).

<Regarding display control by the control unit>
As shown in FIG. 3, the display control unit 33d controls the display of the display unit 32. The display control unit 33d controls the magnetic sensor information regions A for each of the plurality of magnetic sensors 1 to be arranged in a tile shape (matrix shape) and displayed in a list on the display unit 32. In the magnetic sensor information area A, information generated based on the magnetic signals S acquired by each of the plurality of magnetic sensors 1 is displayed. Specifically, the display control unit 33d displays a list of magnetic waveform information Sa for each of the plurality of magnetic sensors 1 arranged side by side on the display unit 32 for each magnetic sensor information area A corresponding to each magnetic sensor 1. Take control. Then, the display control unit 33d displays not only the magnetic waveform information Sa but also the determination result R by the determination unit 33b for each of the plurality of magnetic sensors 1 in each magnetic sensor information region A corresponding to each magnetic sensor 1. Control is performed to display the list side by side on the display unit 32. The magnetic sensor information area A is an example of a "magnetic sensor image" in the claims.

<About the magnetic sensor information area>
As shown in FIG. 8, the display control unit 33d displays the magnetic signal S and the determination result R for one magnetic sensor 1 in the magnetic sensor information area A corresponding to one magnetic sensor 1. Specifically, the display control unit 33d displays the magnetic waveform information Sa generated based on the magnetic signal S acquired in the display target period T in the magnetic sensor information area A. Further, the display control unit 33d displays the time-series judgment result display Ra that displays the judgment result R as the acquired numerical value along the time series, and the judgment notification that displays the acquired judgment result R based on the threshold value. The display Rb is displayed on the display unit 32. The magnetic waveform information Sa, the time series determination result display Ra, and the determination notification display Rb are examples of "magnetic sensor image information" in the claims.

The time-series judgment result display Ra is a display in which the judgment result R acquired in the display target period T is represented by a graph display. Further, the determination notification display Rb is a display for notifying the determination result R based on two types of threshold values. For example, as shown in FIG. 9A, when the determination result R is less than 0.7, the display control unit 33d displays the characters “RUNNING”, which is a normal display, as the determination notification display Rb. .. Further, as shown in FIG. 9B, when the determination result R is 0.7 or more and less than 0.9, the display control unit 33d displays the character “WARNING” which is a caution display. Then, as shown in FIG. 9 (C), the display control unit 33d indicates that the magnetic body P has passed when the determination result R is 0.9 or more. The character "EMERGENCY", which is a warning display for notifying, is displayed as the judgment notification display Rb. The determination notification display Rb for indicating the determination result R is not limited to the display in characters, but may be displayed in numbers, symbols, or the like.

Further, the display control unit 33d displays the magnetic waveform information Sa and the time series determination result display Ra in the magnetic sensor information area A by graph display with the horizontal axis as a common time axis. Then, the display control unit 33d updates the displayed magnetic waveform information Sa, the time series determination result display Ra, and the determination notification display Rb every time the magnetic signal S is acquired (every 0.5 seconds). Further, the display control unit 33d displays the right end of the graph display as the latest magnetic signal S and the numerical value of the determination result R. That is, the display control unit 33d was acquired within a predetermined display target period T (for example, 30 minutes) while updating the display every 0.5 seconds without changing the length of the display target period T. The magnetic signal S and the determination result R are displayed on the display unit 32. In the graph display of the magnetic waveform information Sa in the magnetic sensor information region A of FIG. 8, the vertical axis represents the signal strength of the magnetic signal S, and the scale is variably configured according to the signal strength. That is, the scale of the vertical axis is varied so that the maximum value and the minimum value of the displayed signal strength are located at the upper end and the lower end of the graph, respectively.

Further, as shown in FIG. 8, the magnetic sensor information area A includes the magnetic sensor status display B. The magnetic sensor state display B is a display showing the state of the magnetic sensor 1. The magnetic sensor status display B includes, for example, identification numbers (first to ninth) of the magnetic sensor 1, specific numerical values of the determination result R, and the like.

Further, the display control unit 33d displays the determination result R for one magnetic sensor 1 as a representative from the determination results R for each of the plurality of magnetic sensors 1 in a larger size than the list-displayed determination result R. It is configured to control the display on the unit 32. Specifically, as shown in FIG. 3, in each of the plurality of magnetic sensor information areas A, the determination notification display Rb for the plurality of magnetic sensors 1 is displayed, and the determination of the list-displayed magnetic sensor information area A is performed. Separately from the notification display Rb, the representative determination notification display Rc as a representative is displayed in large size on the display unit 32. For example, the display control unit 33d displays three types of determination notification display Rb (“normal display: RUNNING”, “caution display: WARNING”, and “warning display: EMERGENCY”) for each of the plurality of magnetic sensors 1. It is displayed in each of the magnetic sensor information areas A. Then, the display control unit 33d makes a representative determination of the display having the highest accuracy of the magnetic signal S caused by the magnetic body P from among the determination notification display Rb displayed in the plurality of magnetic sensor information areas A. The notification display Rc is displayed in large size on the display unit 32.

Further, the display control unit 33d acquires the magnetic body detection information E including the determination result R indicating that the magnetic body P has passed through each of the plurality of magnetic sensors 1, and each of the plurality of magnetic sensors 1 The magnetic substance detection information E for is displayed in a list on the display unit 32 side by side. Then, the display control unit 33d detects the magnetic substance as a representative when the magnetic substance detection information E is acquired based on the magnetic signal S acquired by at least one magnetic sensor 1 among the plurality of magnetic sensors 1. The information E is configured to be controlled to be displayed on the display unit 32 larger than the magnetic substance detection information E displayed in the list. For example, when the magnetic body detection information E (determination result R is 0.9 or more) is acquired by at least one magnetic sensor 1 among the plurality of magnetic sensors 1, the display control unit 33d displays the representative determination notification. As Rc, the representative magnetic substance detection information E (warning display: EMERGENCY) is displayed on the display unit 32.

<Change of display target period>
Further, the display control unit 33d changes the display target period T for each of the plurality of magnetic sensors 1 based on the input operation to the operation unit 31, and also provides the magnetic waveform information Sa for the changed display target period T. It is configured to be displayed side by side on the display unit 32.

For example, the display control unit 33d changes the length of the display target period T based on the input operation on the keyboard included in the operation unit 31. Further, for example, the length of the display target period T may be changed by a drag operation on the mouse included in the operation unit 31 or a rotation operation of the wheel button. Further, the display control unit 33d is configured so that the start time point and the end time point of the display target period T can be arbitrarily changed based on the input operation to the operation unit 31. The display control unit 33d is configured so that the display target period T in all the magnetic sensors 1 (all magnetic sensor information areas A) can be uniformly changed based on the operation on the operation unit 31. Further, the display control unit 33d individually sets each of the display target periods T in each individual magnetic sensor 1 (for each individual magnetic sensor information area A for each magnetic sensor 1) based on the input operation to the operation unit 31. It is configured to be changeable. The display control unit 33d changes the display target period T based on the input operation to the operation unit 31 to display the magnetic signal S and the determination result R from an arbitrary time point to an arbitrary time point.

<About selection display>
As shown in FIG. 8, the display control unit 33d sets the magnetic waveform information Sa and the determination result R (hours) for the common display target period T for each of the magnetic sensor information regions A corresponding to each of the plurality of magnetic sensors 1. The series determination result display Ra and the determination notification display Rb) are displayed side by side on the display unit 32. Further, the display control unit 33d selects one magnetic waveform information Sa (magnetic sensor information area A) from the plurality of magnetic waveform information Sa (magnetic sensor information area A) based on the selection operation for the operation unit 31. Accepts input for. For example, the display control unit 33d displays a detail button C for selecting and displaying (detailed display) the magnetic sensor information area A (magnetic waveform information Sa and time series determination result display Ra) in each magnetic sensor information area A. To do. Then, in each of the plurality of magnetic sensor information areas A displayed on the display unit 32, a click operation by the mouse included in the operation unit 31 is performed on any of the areas of the detail button C, based on that. The display control unit 33d acquires the magnetic sensor information area A (magnetic waveform information Sa) corresponding to the detail button C on which the click operation is performed as the selected magnetic sensor information area A0.

Then, as shown in FIG. 10, the display control unit 33d displays the magnetic waveform information Sa corresponding to the selected magnetic sensor information area A0 (selected magnetic sensor 1) and the time series determination result display Ra. The display unit 32 is enlarged and displayed with the target period T extended. Specifically, the display control unit 33d extends the display target period T for the selected magnetic sensor information area A0 and displays it on the display unit 32. Then, the display control unit 33d extends the display target period T, so that the period from the time when the acquisition (memory) of the magnetic signal S is started to the present time is set as the new display target period T. Then, the display control unit 33d displays the magnetic waveform information Sa and the time series determination result display Ra corresponding to the selected magnetic sensor information area A0 (selected magnetic sensor 1) for the new display target period T. It is displayed on 32. For example, when the storage control unit 33c is configured to store one measurement data D in the storage unit 34 every 24 hours, the display control unit 33d may perform the display control unit 33d based on the click operation on the detail button C. The details of the magnetic sensor information area A0 selected based on the magnetic signal S stored in the display target period T of 24 hours are enlarged and displayed (detailed display). In the entire display (detailed display) of the magnetic signal S, the display target period T is not limited to 24 hours. For example, the magnetic signal S acquired during the three months may be displayed in detail.

Further, in a state where the entire magnetic signal S in the selected magnetic sensor information area A0 is displayed (detailed display) based on the input operation for the detail button C, the display control unit 33d stores the magnetic signal S in the storage unit 34. The magnetic substance detection information E including the determined determination result R is visually displayed on the display unit 32 in chronological order. Specifically, as shown in FIG. 10, the display control unit 33d detects the magnetic substance at the time when the magnetic substance detection information E is acquired on the time axis common to the acquired overall magnetic signal S and the determination result R. It is visibly displayed as the information button E1. Further, the display control unit 33d clicks (selects) based on the click operation on the area of the magnetic material detection information button E1, which is a button display indicating the time when the magnetic material detection information E displayed in chronological order is acquired. ) In the display target period T corresponding to the magnetic substance detection information E (magnetic substance detection information button E1), the acquired magnetic signal S and the determination result R are enlarged and displayed. For example, the display control unit 33d starts from a time point 15 minutes before the time when the selected magnetic material detection information E is acquired based on the click operation, and 15 minutes from the time point when the selected magnetic material detection information E is acquired. The 30 minutes up to the later point in time are acquired as a new display target period T. Then, the display control unit 33d determines that the magnetic signal S stored in the storage unit 34 in the acquired display target period T and the determination result R corresponding to the magnetic signal S stored in the storage unit 34 in the display target period T. Each of the above is visually displayed on the display unit 32 in chronological order.

Further, the display control unit 33d selects (clicks) the list display button Ca in the state where the selected magnetic sensor information area A0 is displayed, so that the magnetic sensor information about each of the plurality of magnetic sensors 1 is displayed. Switch to the state where the areas A are arranged side by side and displayed in a list.

<Display of stored magnetic signal>
As shown in FIG. 11, the display control unit 33d controls the display unit 32 to display the stored magnetic signal S (magnetic waveform information Sa) based on the operation on the operation unit 31. Specifically, the display control unit 33d selects the stored measurement data D (see FIG. 2) by operating the operation unit 31, and thus the magnetic signal S and the magnetism included in the selected measurement data D. The body detection information E is displayed on the display unit 32.

As shown in FIG. 11, the display control unit 33d can selectably display the extracted magnetic signal S0 acquired in the storage target period U from the stored magnetic signals S in all periods. That is, the display control unit 33d has a magnetic signal S (passage of the magnetic body P) determined to be a magnetic signal S caused by the magnetic body P from among the magnetic signals S acquired by the plurality of magnetic sensors 1. The magnetic substance detection information E) including the determination result R indicating that the result has been obtained is displayed so that it can be extracted. Then, the display control unit 33d uses the magnetic body detection information E of the selected magnetic sensor 1 by selecting the magnetic body detection information E acquired by the magnetic sensor 1 of one of the plurality of magnetic sensors 1. The corresponding extracted magnetic signal S0 and the extracted magnetic signal S0 in the magnetic sensor 1 (adjacent magnetic sensor 1) around the selected magnetic sensor 1 are displayed side by side on the display unit 32. For example, when the magnetic substance detection information E based on the magnetic signal S acquired by the sixth magnetic sensor 16 is selected, the display control unit 33d extracts the magnetic substance detection period U acquired by the sixth magnetic sensor 16 in the storage target period U. In addition to the magnetic signal S0, the extracted magnetic signals S0 for the fifth magnetic sensor 15 and the seventh magnetic sensor 17 adjacent to the sixth magnetic sensor 16 are displayed side by side in the vertical direction.

Further, the display control unit 33d displays the extracted magnetic signal S0 based on the selected magnetic substance detection information E, and also displays the entire period of the stored magnetic signal S. Further, the display control unit 33d may be configured to extract and display the magnetic signal S acquired in an arbitrary period by an arbitrary magnetic sensor 1 based on the operation on the operation unit 31.

<About report output>
As shown in FIG. 12, the information output unit 33e associates the stored magnetic signal S with the magnetic body detection information E and outputs the report information Dd for each of the plurality of magnetic sensors 1. The report information Dd is, for example, a file in the PDF (Portable Document Format) format. The report information Dd is information output in a state in which measurement data D (position information Da, time information Db, annotation information Dc, etc.) for each of the plurality of magnetic sensors 1 can be viewed. The report information Dd is a magnetic signal determined to be caused by the magnetic substance P among the acquired magnetic signals S by the user who monitors the passage of the magnetic substance P every day or every few hours. This is a report in which S is extracted and displayed so as to be visible.

(About the display method for magnetic detection)
Next, with reference to FIG. 13, a display method for magnetic detection using the magnetic detection system 100 according to the present embodiment will be described.

First, in step 101, the magnetic signal S is acquired by a plurality of magnetic sensors 1 installed in water.

Next, in step 102, a low-pass filter is used for the magnetic signals S acquired by each of the plurality of magnetic sensors 1, and the high-frequency noise component is removed.

Next, in step 103, the measurement data D including the magnetic signals S acquired by each of the plurality of magnetic sensors 1 is stored in the storage unit 34.

Next, in step 104, the determination result R is acquired based on the magnetic signal S acquired from the time when the magnetic signal S is acquired to the time when the determination period goes back 12 minutes.

Next, in step 105, the magnetic waveform information Sa is acquired based on the magnetic signals S acquired by each of the plurality of magnetic sensors 1. Further, based on the acquired determination result R, the time series determination result display Ra and the determination notification display Rb are generated.

Next, in step 106, it is determined whether or not the value of the determination result R acquired in step 104 is equal to or greater than the threshold value. If it is determined that the acquired determination result R is equal to or greater than the threshold value, the process proceeds to step 107. If the acquired determination result R is smaller than the threshold value, the process proceeds to step 108.

In step 107, the magnetic body detection information E indicating that there is a high possibility that the magnetic signal S caused by the passage of the magnetic body P has been acquired is acquired. Then, the magnetic substance detection information E is stored in the state of being included in the measurement data D. Then, the process proceeds to step 108.

In step 108, for each of the plurality of magnetic sensors 1, the magnetic sensor information area A including the acquired magnetic waveform information Sa, the time series determination result display Ra, the determination notification display Rb, and the like is displayed in a list on the display unit 32. Will be done.

Next, in step 109, it is determined whether or not the input operation for changing the display target period T has been accepted. If it is determined that the input operation for changing the display target period T has been accepted, the process proceeds to step 110. If it is not determined that the input operation for changing the display target period T has been accepted, the process proceeds to step 111.

In step 110, the display target period T is changed based on the input operation to the operation unit 31. Then, the process proceeds to step 111.

In step 111, it is determined whether or not the selection operation for selecting one magnetic waveform information Sa (magnetic sensor information area A) from the plurality of magnetic waveform information Sa (magnetic sensor information area A) has been accepted. .. If it is determined that the selection operation for selecting one magnetic waveform information Sa (magnetic sensor information area A) has been accepted, the process proceeds to step 112. If it is not determined that the selection operation for selecting one magnetic waveform information Sa (magnetic sensor information area A) has been accepted, the process proceeds to step 113.

In step 112, the selected magnetic waveform information Sa (selected magnetic sensor information area A0) is displayed on the display unit 32 based on the selection operation. Then, the process proceeds to step 113.

In step 113, it is determined whether or not the input by the user is accepted in order to acquire the annotation information Dc. If it is determined that the input for acquiring the annotation information Dc has been accepted, the process proceeds to step 114. If it is not determined that the input for acquiring the annotation information Dc has been accepted, the process proceeds to step 115.

In step 114, the annotation information Dc is associated with the magnetic signal S and stored in the storage unit 34 based on the input by the user. Then, the process proceeds to step 115.

In step 115, a new magnetic signal S is acquired from the acquired magnetic signal S after a predetermined sampling period (0.5 seconds) has elapsed. Then, the process returns to step 103.

In steps 109 to 114, the control in which the display target period T is changed based on the input operation and the control in which the selected magnetic sensor information area A0 is displayed by selecting one magnetic sensor information area A. And the control for storing the annotation information Dc may be performed at any timing.

(About the display method of the stored magnetic signal)
Next, with reference to FIG. 14, a method of displaying the stored magnetic signal S using the magnetic detection system 100 according to the present embodiment will be described.

First, in step 121, the entire magnetic signal S stored in the storage unit 34 is displayed based on the operation on the operation unit 31, and a part of the magnetic signal S stored in the storage unit 34 is extracted and displayed. It is determined which of the things to do is selected. If it is determined that the display of the entire stored magnetic signal S is selected, the process proceeds to step 122. Then, when it is determined that it is selected to extract and display a part of the stored magnetic signal S, the process proceeds to step 124.

In step 122, the entire magnetic signal S acquired by each of the plurality of magnetic sensors 1 is displayed on the display unit 32.

Next, in step 123, the annotation information Dc stored in the storage unit 34 in association with the entire magnetic signal S acquired by each of the plurality of magnetic sensors 1 is displayed on the display unit 32. Then, the process proceeds to step 128.

In step 124, the stored magnetic substance detection information E is selectively displayed for each of the plurality of stored magnetic sensors 1.

Next, in step 125, a selection operation for selecting one magnetic substance detection information E from the plurality of magnetic substance detection information E in each of the plurality of magnetic sensors 1 displayed on the display unit 32 is accepted. ..

Next, in step 126, the extracted magnetic signal S0 corresponding to the magnetic body detection information E of the selected magnetic sensor 1 is displayed on the display unit 32. Then, the extracted magnetic signal S0 in the magnetic sensor 1 installed adjacent to the selected magnetic sensor 1 is arranged side by side with the extracted magnetic signal S0 corresponding to the magnetic body detection information E of the selected magnetic sensor 1. It is displayed on the display unit 32.

Next, in step 127, the annotation information Dc stored in association with the extracted magnetic signal S0 displayed on the display unit 32 is displayed on the display unit 32. Then, the process proceeds to step 128.

In step 128, it is determined whether or not the input operation for changing the display target period T has been accepted. If it is determined that the input operation for changing the display target period T has been accepted, the process proceeds to step 129. If it is not determined that the input operation for changing the display target period T has been accepted, the process proceeds to step 130.

In step 129, the display target period T is changed based on the input operation. Then, the magnetic waveform information Sa is displayed on the display unit 32 based on the magnetic signal S (extracted magnetic signal S0) acquired in the changed display target period T. Then, the process proceeds to step 130.

In step 130, it is determined whether or not the operation for ending the display has been accepted. When it is determined that the operation for ending the display has been accepted, the display of the stored magnetic signal S is terminated.

Note that the step 121 for selecting the entire display and the extraction display of the stored magnetic signal S may be omitted. That is, it may be configured to store only the extracted magnetic signal S0 based on the magnetic substance detection information E without storing the entire magnetic signal S. Further, by selecting the stored magnetic substance detection information E from the state in which the entire magnetic signal S is displayed, the extracted magnetic signal S0 corresponding to the selected magnetic substance detection information E is displayed on the display unit 32. It may be displayed.

(Effect of the first embodiment)
In the first embodiment, the following effects can be obtained.

In the magnetic detection system 100 of the first embodiment, as described above, the magnetic waveform information Sa (information of the magnetic signal S) for each of the plurality of magnetic sensors 1 is displayed in a list side by side. As a result, the magnetic waveform information Sa for each of the plurality of magnetic sensors 1 is displayed side by side in a list. Therefore, even when the magnetic signals S are acquired and displayed by the plurality of magnetic sensors 1, the plurality of magnetic sensors 1 are displayed. Information about each of the above can be displayed in an identifiable manner. As a result, the user can easily distinguish and visually recognize the magnetic signals S for each of the plurality of magnetic sensors 1 displayed in the list. Therefore, when the magnetic signals S are acquired and displayed by the plurality of magnetic sensors 1. In addition, the visibility of information about each of the plurality of magnetic sensors 1 can be improved.

Further, in the above embodiment, the following further effects can be obtained by configuring as follows.

That is, in the first embodiment, as described above, it is determined whether or not the magnetic body P has passed through each of the plurality of magnetic sensors 1 based on the magnetic signals S acquired by each of the plurality of magnetic sensors 1. The display control unit 33d (control unit 33) further includes, for each of the plurality of magnetic sensors 1, not only the magnetic waveform information Sa (information of the magnetic signal S) but also the determination result by the determination unit 33b. R is also configured to control display in a list on the display unit 32 side by side. With this configuration, for each of the plurality of magnetic sensors 1 listed side by side, not only the magnetic signal S but also the determination result R can be visually recognized to obtain the magnetic signals S and the magnetic signals S for each of the plurality of magnetic sensors 1. The determination result R can be identified. Therefore, even when the magnetic signal S is acquired by the plurality of magnetic sensors 1 and the magnetic signal S and the determination result R are displayed, the visibility of the magnetic signal S and the determination result R is improved for each of the plurality of magnetic sensors 1. Can be made to. As a result, it is possible to easily identify which of the plurality of magnetic sensors 1 the magnetic sensor 1 has acquired the magnetic signal S caused by the magnetic body P by visually recognizing the determination result R.

Further, in the first embodiment, as described above, the display control unit 33d (control unit 33) arranges the magnetic waveform information Sa (information of the magnetic signal S) for each of the plurality of magnetic sensors 1 in a tile shape. , It is configured to control the list display on the display unit 32. With this configuration, the magnetic waveform information Sa for each of the plurality of magnetic sensors 1 listed side by side in a tile shape can be easily visually recognized. Therefore, a plurality of magnetic waveform information Sa can be easily compared. As a result, when the magnetic signal S caused by the magnetic body P is acquired, it is possible to easily recognize whether or not the waveform is caused by the magnetic body P by comparing the magnetic waveform information Sa arranged in a tile shape. it can.

Further, in the first embodiment, as described above, it is determined whether or not the magnetic body P has passed through each of the plurality of magnetic sensors 1 based on the magnetic signals S acquired by each of the plurality of magnetic sensors 1. The display control unit 33d (control unit 33) further includes a determination unit 33b for performing the above, and the display control unit 33d (control unit 33) displays a list of determination results R by the determination unit 33b for each of the plurality of magnetic sensors 1 on the display unit 32, and displays a list of the plurality of magnetisms. From the judgment results R for each of the sensors 1, the judgment result R for one magnetic sensor 1 as a representative is controlled to be displayed on the display unit 32 larger than the judgment result R displayed in the list. Has been done. With this configuration, it is possible to more easily identify the determination result R of one of the plurality of magnetic sensors 1 which is displayed as a representative magnetic sensor 1. Therefore, the determination result R of any target magnetic sensor 1 can be easily recognized from the plurality of magnetic sensors 1. As a result, the determination result R that needs to be monitored (recognized) can be displayed in a large size, so that it is possible to effectively suppress overlooking the determination result R that needs to be monitored.

Further, in the first embodiment, as described above, the display control unit 33d (control unit 33) includes a determination result R indicating that the magnetic body P has passed through each of the plurality of magnetic sensors 1. The magnetic body detection information E is acquired, and the magnetic body detection information E for each of the plurality of magnetic sensors 1 is displayed in a list side by side on the display unit 32, and at least one of the plurality of magnetic sensors 1 is used. Control to display the representative magnetic body detection information E on the display unit 32 larger than the listed magnetic body detection information E when the magnetic body detection information E is acquired based on the acquired magnetic signal S. Is configured to do. With this configuration, when even one of the plurality of magnetic sensors 1 acquires the magnetic signal S caused by the magnetic body P, the determination result R indicating that the magnetic body P has passed is included. The magnetic substance detection information E can be displayed in a large size. Therefore, it is possible to more reliably notify the user that the magnetic signal S caused by the magnetic body P has been acquired by the magnetic sensor 1 of any of the plurality of magnetic sensors 1. As a result, even when the number of magnetic sensors 1 is large (for example, several tens), the user can easily recognize whether or not the magnetic body P has passed, so that the user overlooks the passage of the magnetic body P. Can be effectively suppressed.

Further, in the first embodiment, as described above, selection for selecting one magnetic waveform information Sa from a plurality of magnetic waveform information Sa (information of the magnetic signal S) corresponding to the plurality of magnetic sensors 1. An operation unit 31 that accepts operations is further provided, and the display control unit 33d (control unit 33) displays the magnetic waveform information Sa for the common display target period T side by side on the display unit 32 for each of the plurality of magnetic sensors 1. At the same time, when one magnetic waveform information Sa is selected based on the selection operation for the operation unit 31, the selected one magnetic waveform information Sa is displayed on the display unit 32 in a state where the display target period T is extended. It is configured to display. With this configuration, for any one of the plurality of magnetic sensors 1, the magnetic waveform information Sa acquired in a longer period based on the selection operation for the operation unit 31 is visually recognized. be able to. Therefore, the user performs a selection operation on the operation unit 31 to extend the display target period T from the state in which a plurality of magnetic waveform information Sas are displayed in a list, thereby relating to one magnetic waveform information Sa. It is possible to easily switch to the state of displaying detailed information (information over a longer period of time). As a result, with respect to the magnetic sensor 1 of one of the plurality of magnetic sensors 1, the magnetic waveform information Sa acquired in the past long period can be easily referred to.

Further, in the first embodiment, as described above, the operation unit 31 that accepts the operation for changing the display target period T of the magnetic waveform information Sa (information of the magnetic signal S) displayed on the display unit 32 is further provided. The display control unit 33d (control unit 33) changes the display target period T for each of the plurality of magnetic sensors 1 based on the operation on the operation unit 31, and the magnetism for the changed display target period T. The waveform information Sa is configured to be displayed side by side on the display unit 32. With this configuration, the display target period T can be arbitrarily changed by the user, and the magnetic waveform information Sa of the magnetic signal S acquired in the arbitrary display target period T can be visually recognized. Therefore, when analyzing and verifying the magnetic waveform information Sa acquired by the plurality of magnetic sensors 1, it is possible to easily compare the plurality of magnetic waveform information Sa while arbitrarily changing the display target period T.

Further, in the first embodiment, as described above, the information of the magnetic signal S includes the magnetic waveform information Sa representing the acquired magnetic signal S by a waveform, and the display control unit 33d (control unit 33) has a plurality of display control units 33d (control unit 33). It is configured to control the display of magnetic waveform information Sa for each of the magnetic sensors 1 side by side on the display unit 32. With this configuration, the acquired magnetic signal S can be visually recognized by the waveform. Thereby, the magnitude of the signal strength of the magnetic signal S can be easily recognized by visually recognizing the magnetic waveform information Sa represented by the waveform.

Further, in the first embodiment, as described above, it is determined whether or not the magnetic body P has passed through each of the plurality of magnetic sensors 1 based on the magnetic signals S acquired by each of the plurality of magnetic sensors 1. Further, the display control unit 33d (control unit 33) acquires magnetic sensor image information including the determination result R by the determination unit 33b and the magnetic waveform information Sa for each of the plurality of magnetic sensors 1. At the same time, the magnetic sensor information area A (magnetic sensor image) for each of the plurality of magnetic sensors 1 is arranged and displayed in a list on the display unit 32. With this configuration, by visually recognizing the magnetic sensor information areas A listed side by side on the display unit 32, the determination result R and the magnetic waveform information Sa can be easily combined for each of the plurality of magnetic sensors 1. Can be recognized. Therefore, the determination result R and the magnetic waveform information Sa for the plurality of magnetic sensors 1 can be easily compared.

Further, in the first embodiment, as described above, it is determined whether or not the magnetic body P has passed through each of the plurality of magnetic sensors 1 based on the magnetic signals S acquired by each of the plurality of magnetic sensors 1. A determination unit 33b for performing the above and a storage unit 34 for storing the magnetic signals S acquired by each of the plurality of magnetic sensors 1 are further provided, and the display control unit 33d (control unit 33) is a determination result by the determination unit 33b. The magnetic substance detection information E including the determination result R indicating that the magnetic substance P has passed based on R is acquired, and the acquired magnetic substance detection information E and the magnetic signal S are associated with each other to store the storage unit 34. It is configured to be remembered in. With this configuration, the magnetic signal S determined to have passed the magnetic body P can be easily extracted from the magnetic signal S stored in the storage unit 34. Therefore, even when the stored magnetic signal S is stored for a long period of time such as several months, it is determined that the magnetic material P has passed from the stored magnetic signal S. The magnetic signal S can be easily extracted.

Further, in the first embodiment, as described above, the storage control unit 33c (control unit 33) stores each of the plurality of magnetic sensors 1 from the magnetic signals S acquired by the magnetic sensor 1. The magnetic signal S acquired in the storage target period U including at least one of the time before and after the determination result R corresponding to the magnetic substance detection information E is associated with the magnetic substance detection information E, and the storage unit 34 It is configured to be remembered in. With this configuration, among the acquired magnetic signals S, the magnetic signals acquired in the storage target period U including at least one of the acquired magnetic signals S before and after the time when it is determined that the magnetic body P has passed. S can be easily extracted. Therefore, the labor required for extracting the magnetic signal S for reference can be suppressed.

Further, in the first embodiment, as described above, when the storage control unit 33c (control unit 33) acquires the magnetic substance detection information E in the magnetic sensor 1 of one of the plurality of magnetic sensors 1. , The magnetic signal S acquired in the storage target period U by one magnetic sensor 1 and another magnetic sensor 1 different from one of the plurality of magnetic sensors 1 is stored in the magnetic body detection information E. It is configured to be stored in the storage unit 34 in association with. With this configuration, when the magnetic signal S caused by the magnetic body P is acquired in the magnetic sensor 1 of one of the plurality of magnetic sensors 1, the magnetic signal S caused by the magnetic body P is acquired. Not only the magnetic sensor 1 but also the magnetic signal S acquired by another magnetic sensor 1 can be stored together. Therefore, when the magnetic body detection information E is acquired, for example, what kind of magnetic signal S is used in the magnetic sensor 1 installed around the magnetic sensor 1 that has acquired the magnetic signal S caused by the magnetic body P. It is possible to memorize whether or not it was acquired. As a result, when analyzing and verifying the acquired magnetic substance detection information E, not only the magnetic sensor 1 that detects the magnetic signal S caused by the magnetic substance P but also the magnetic signal S acquired by the surrounding magnetic sensor 1. Can be easily referred to.

Further, in the first embodiment, as described above, the control unit 33 (memory control unit 33c and display control unit 33d) acquires the annotation information Dc input by the user and obtains the magnetic signal S and the annotation information Dc. It is configured to store in the storage unit 34 in association with each other and to control each of the plurality of magnetic sensors 1 to visually display the magnetic signal S and the annotation information Dc on the display unit 32. With this configuration, the acquired magnetic signal S can be stored in association with arbitrary annotation information Dc by the user. Therefore, a comment or the like by a user who monitors the magnetic signal S can be stored as annotation information Dc in association with the magnetic signal S. As a result, when referring to the stored magnetic signal S, it can be referred to by comparing it with the annotation information Dc input by the user. As a result, when there is a point to be noted in the stored magnetic signal S, the point to be noted can be easily recognized.

Further, in the first embodiment, as described above, the information output unit 33e (control unit 33) reports the stored magnetic signal S and the magnetic body detection information E in association with each of the plurality of magnetic sensors 1. It is configured to output as information Dd. With this configuration, when reporting the stored magnetic signal S and the magnetic substance detection information E, the report can be easily performed by using the output report information Dd. Therefore, it is possible to reduce the time and effort required to create the report information Dd for reporting the magnetic signal S and the magnetic substance detection information E.

(Effect of display method for magnetic detection according to the first embodiment)
In the display method for magnetic detection of the first embodiment, the following effects can be obtained.

In the display method for magnetic detection of the first embodiment, the magnetic waveform information Sa (information of the magnetic signal S) for each of the plurality of magnetic sensors 1 is displayed in a list side by side by configuring as described above. As a result, the magnetic waveform information Sa for each of the plurality of magnetic sensors 1 is displayed side by side in a list. Therefore, even when the magnetic signals S are acquired and displayed by the plurality of magnetic sensors 1, the plurality of magnetic sensors 1 are displayed. It is possible to provide a display method for magnetic detection capable of displaying information about each of the above in an identifiable manner. As a result, the user can easily distinguish and visually recognize the magnetic signals S for each of the plurality of magnetic sensors 1 displayed in the list. Therefore, when the magnetic signals S are acquired and displayed by the plurality of magnetic sensors 1. Also, it is possible to provide a display method for magnetic detection capable of improving the visibility of information about each of the plurality of magnetic sensors 1.

[Second Embodiment]
Next, the configuration of the magnetic detection system 200 according to the second embodiment of the present invention will be described with reference to FIGS. 15 and 16. In this second embodiment, unlike the first embodiment in which a plurality of magnetic sensor information is arranged in a tile and displayed in a list, the magnetic sensor information is arranged at a position corresponding to the magnetic sensor 1 on the map. It is configured to display. The same configuration as that of the first embodiment is shown with the same reference numerals in the drawings, and the description thereof will be omitted.

The magnetic detection system 200 according to the second embodiment includes a computer 203 as shown in FIG. The computer 203 includes a control unit 233.

The control unit 233 includes a display control unit 233d as a functional configuration. That is, the control unit 233 functions as the display control unit 233d by executing the program.

The display control unit 233d acquires the position information Da for each of the plurality of magnetic sensors 1, and based on the acquired position information Da, the information of the magnetic signal S (magnetism) at the position corresponding to the magnetic sensor 1 on the map. The waveform information Sa) is configured to be displayed side by side on the display unit 32.

Specifically, as shown in FIG. 16, the display control unit 233d acquires the position information Da of each of the plurality of magnetic sensors 1 and the map information around the point where the magnetic sensor 1 is installed. Then, in the map generated based on the acquired map information, the position corresponding to the position where the plurality of magnetic sensors 1 are installed is acquired. Then, the display control unit 233d arranges the magnetic waveform information Sa at the position corresponding to the magnetic sensor 1 on the map and displays the magnetic waveform information Sa in a list on the display unit 32. Further, the display control unit 233d displays the details of the selected magnetic sensor 1 by selecting each of the magnetic sensors 1 displayed on the map. That is, the display control unit 233d selects one magnetic sensor 1 from the plurality of magnetic sensors 1 displayed on the map, so that the selected magnetic sensor information area A0 is the same as in the first embodiment. Is displayed on the display unit 32.

The other configurations of the second embodiment are the same as those of the first embodiment.

[Effect of the second embodiment]
In the second embodiment, the following effects can be obtained.

In the second embodiment, as described above, the display control unit 233d (control unit 233) acquires the position information Da for each of the plurality of magnetic sensors 1, and based on the acquired position information Da, on the map. The magnetic waveform information Sa (information of the magnetic signal S) is arranged and displayed on the display unit 32 at a position corresponding to the magnetic sensor 1. With this configuration, the position where the magnetic sensor 1 is actually installed and the magnetic signal S acquired by the magnetic sensor 1 can be easily recognized. Therefore, when the magnetic signal S caused by the magnetic body P is acquired by any one of the plurality of magnetic sensors 1, the magnetic signal S caused by the magnetic body P is obtained at any point on the map. It is possible to easily recognize whether or not the product has been acquired. As a result, when the magnetic body P has passed in the detection region Q, the position where the magnetic body P has passed can be easily recognized.

The other effects of the second embodiment are the same as those of the first embodiment.

[Modification example]
It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the claims rather than the description of the above-described embodiment, and further includes all modifications (modifications) within the meaning and scope equivalent to the claims.

(First and second modified examples)
For example, in the first embodiment, the display control unit (control unit) arranges the magnetic waveform information Sa (information of the magnetic signal S) for each of the plurality of magnetic sensors in a tile shape and displays them in a list on the display unit. Although an example configured to perform control has been shown, the present invention is not limited to this. For example, as in the display control unit according to the first modification shown in FIG. 17, the magnetic waveform information Sa (magnetic sensor information area A) corresponding to each of the plurality of magnetic sensors is arranged in a vertical row and displayed in a list on the display unit 32. It may be configured to control the operation. Further, as in the display control unit according to the second modification shown in FIG. 18, the information of the magnetic signal S corresponding to each of the plurality of magnetic sensors is displayed in a list on the display unit 32 using a radar chart (spider web graph). The display control unit may be configured to perform control. Specifically, the signal strength of the magnetic signal S acquired by each of the plurality of magnetic sensors may be displayed on the display unit 32 using a radar chart.

(Third modification example)
Further, in the first and second embodiments, when the display control unit selects one magnetic sensor information area A from the magnetic sensor information areas A for a plurality of magnetic sensors, the selected magnetic sensor information area An example of controlling the display of only A0 on the display unit 32 has been shown, but the present invention is not limited to this. For example, as in the display control unit in the third modification shown in FIG. 19, the selected magnetic sensor information area A0 is displayed in a large size, and the unselected magnetic sensor information area A is displayed in a small size. It may be.

(Other variants)
Further, in the first and second embodiments, a determination unit that determines whether or not a magnetic material has passed through each of the plurality of magnetic sensors is provided based on the magnetic signals acquired by each of the plurality of magnetic sensors. Further, the display control unit (control unit) controls to display not only the magnetic waveform information (magnetic signal information) but also the judgment results by the judgment unit side by side on the display unit for each of the plurality of magnetic sensors. Although an example configured in is shown, the present invention is not limited to this. For example, it may be possible to display only the acquired magnetic waveform information side by side on the display unit without providing the determination unit.

Further, in the first and second embodiments, a determination unit that determines whether or not a magnetic material has passed through each of the plurality of magnetic sensors is provided based on the magnetic signals acquired by each of the plurality of magnetic sensors. Further, the display control unit (control unit) displays the judgment results by the judgment unit for each of the plurality of magnetic sensors side by side on the display unit, and represents the judgment results for each of the plurality of magnetic sensors. Although an example is shown in which the determination result of one magnetic sensor is controlled to be displayed on the display unit larger than the determination result displayed in the list, the present invention is not limited to this. For example, the determination result for one representative magnetic sensor may be displayed smaller than the determination result displayed in the list. Further, the determination results displayed in the list may not be displayed, but only the determination results for one magnetic sensor as a representative may be displayed.

Further, in the first and second embodiments, the display control unit (control unit) acquires magnetic substance detection information including a determination result indicating that the magnetic substance has passed through each of the plurality of magnetic sensors. Then, the magnetic substance detection information for each of the plurality of magnetic sensors is displayed in a list side by side on the display unit, and the magnetic substance detection information is based on the magnetic signal acquired by at least one magnetic sensor among the plurality of magnetic sensors. Is obtained, an example is shown in which control is performed so that the representative magnetic substance detection information is displayed on the display unit larger than the list-displayed magnetic substance detection information. Not limited to this. For example, instead of displaying the representative magnetic substance detection information, the magnetic substance detection information for each of the plurality of magnetic sensors may be displayed side by side in a list. Further, it is possible to display only the magnetic waveform information side by side on the display unit without acquiring the magnetic substance detection information.

Further, in the first and second embodiments, an operation unit that accepts a selection operation for selecting one magnetic waveform information from a plurality of magnetic waveform information (magnetic signal information) corresponding to a plurality of magnetic sensors. The display control unit (control unit) displays magnetic waveform information about a common display target period for each of a plurality of magnetic sensors side by side on the display unit, and is based on a selection operation for the operation unit. Although the present invention has shown an example in which the selected magnetic waveform information is displayed on the display unit in a state where the display target period is extended when the magnetic waveform information of the above is selected. Not limited to this. For example, the selected magnetic waveform information may be displayed on the display unit without extending the display target period. Further, the selected magnetic waveform information may be displayed on the display unit in a state where the display target period is shortened. Further, one magnetic waveform information is not selected based on the selection operation for the operation unit, but when the determination result by the determination unit is equal to or more than a predetermined threshold value, the one magnetic waveform information is expanded. It may be configured to display.

Further, in the first and second embodiments, the display control unit (display control unit) is further provided with an operation unit that accepts an operation for changing the display target period of the magnetic waveform information (magnetic signal information) displayed on the display unit. The control unit) changes the display target period for each of the plurality of magnetic sensors based on the operation on the operation unit, and displays the magnetic signal information for the changed display target period side by side on the display unit. Although the configuration example is shown, the present invention is not limited to this. For example, it may be configured so that the display target period is not changed. Further, the display target period may be changed based on the control by the control unit instead of the operation by the operation unit.

Further, in the first and second embodiments, the magnetic signal information includes magnetic waveform information representing the acquired magnetic signal by a waveform, and the display control unit (control unit) is for each of the plurality of magnetic sensors. Although an example is shown in which control is performed so as to display magnetic waveform information side by side on a display unit, the present invention is not limited to this. For example, the acquired magnetic signal may be represented numerically. Further, the magnetic signal may be represented by using a symbol that can identify the magnitude of the acquired magnetic signal.

Further, in the first and second embodiments, a determination unit that determines whether or not a magnetic material has passed through each of the plurality of magnetic sensors is provided based on the magnetic signals acquired by each of the plurality of magnetic sensors. Further, the display control unit (control unit) acquires magnetic sensor image information including a determination result by the determination unit and magnetic waveform information for each of the plurality of magnetic sensors, and magnetism for each of the plurality of magnetic sensors. Although an example is shown in which the sensor information area (magnetic sensor image) is arranged and displayed in a list on the display unit, the present invention is not limited to this. For example, the magnetic signal (magnetic waveform information) acquired for each of the plurality of magnetic sensors and the determination result may be displayed side by side. That is, only the magnetic signals acquired by the plurality of magnetic sensors may be displayed side by side, and only the determination results acquired by the plurality of magnetic sensors may be displayed side by side.

Further, in the second embodiment, the display control unit (control unit) acquires position information for each of the plurality of magnetic sensors, and based on the acquired position information, the position corresponding to the magnetic sensor on the map. Although an example is shown in which magnetic waveform information (magnetic signal information) is displayed side by side, the present invention is not limited to this. For example, based on the acquired position information, the determination result may be visually displayed side by side together with the magnetic waveform information at the position corresponding to the magnetic sensor on the map.

Further, in the first and second embodiments, a determination unit that determines whether or not a magnetic material has passed through each of the plurality of magnetic sensors is determined based on the magnetic signals acquired by each of the plurality of magnetic sensors. Further, a storage unit for storing the magnetic signal acquired by each of the plurality of magnetic sensors is provided, and the storage control unit (control unit) has passed the magnetic material based on the determination result by the determination unit. An example is shown in which the magnetic substance detection information including the determination result indicating the above is acquired, and the acquired magnetic substance detection information and the magnetic signal are associated with each other and stored in the storage unit. Not limited to. For example, the storage unit may store only the acquired magnetic signal without the configuration for acquiring the determination result.

Further, in the first and second embodiments, the storage control unit (control unit) corresponds to the stored magnetic substance detection information from the magnetic signals acquired by the magnetic sensors for each of the plurality of magnetic sensors. An example is shown in which the magnetic signal acquired in the storage target period including at least one of the time before and after the determination result is acquired is associated with the magnetic substance detection information and stored in the storage unit. However, the present invention is not limited to this. For example, regardless of whether or not the magnetic substance detection information is acquired, all the magnetic signals acquired by the magnetic sensor may be stored in the storage unit.

Further, in the first and second embodiments, the storage control unit (control unit) becomes a magnetic sensor when magnetic substance detection information is acquired in one of the plurality of magnetic sensors. , The magnetic signal acquired in the storage target period is associated with the magnetic substance detection information by another magnetic sensor different from the magnetic sensor of one of the plurality of magnetic sensors, and is stored in the storage unit. However, the present invention is not limited to this. For example, only the magnetic signal acquired by the magnetic sensor that has acquired the magnetic substance detection information may be stored in association with the magnetic substance detection information. Further, the magnetic signals acquired by all the magnetic sensors may be stored in association with the magnetic substance detection information.

Further, in the first and second embodiments, the control unit (storage control unit and display control unit) acquires the annotation information input by the user and stores the magnetic signal and the annotation information in the storage unit in association with each other. In addition, an example is shown in which each of the plurality of magnetic sensors is configured to control the display of the magnetic signal and the annotation information so as to be visible, but the present invention is not limited to this. For example, it may be configured not to acquire annotation information. Further, when the determination result is equal to or more than a predetermined value instead of being input by the user, the annotation information may be automatically acquired and the acquired annotation information may be stored in association with the magnetic signal.

Further, in the first and second embodiments, the information output unit (control unit) outputs the stored magnetic signal and the magnetic substance detection information as report information for each of the plurality of magnetic sensors in association with each other. Although the configuration example is shown, the present invention is not limited to this. For example, the report information may not be output. Further, only the stored magnetic detection information may be output as report information.

Further, in the first and second embodiments, the storage control unit is configured to generate one measurement data every 24 hours, but the present invention is not limited to this. For example, the memory control unit may be configured to generate one measurement data every month.

Further, in the first and second embodiments described above, an example in which a trained model generated by machine learning is used as a discriminator is shown, but the present invention is not limited to this. For example, an algorithm that makes a judgment based on a rule may be used as a discriminator.

Further, in the first and second embodiments described above, an example in which the magnetic sensor is installed in the sea (seabed) is shown, but the present invention is not limited to this. For example, it may be installed in coastal areas such as rivers and lakes.

Further, in the first and second embodiments, an example in which a plurality of magnetic sensors are installed so as to surround the outer peripheral portion of the detection region is shown, but the present invention is not limited to this. For example, it may be installed over the entire area within the detection area.

Further, in the above-mentioned first embodiment, an example including nine magnetic sensors is shown, but the present invention is not limited to this. For example, it may have more than nine magnetic sensors. Further, the number of magnetic sensors may be less than nine.

[Aspect]
It will be understood by those skilled in the art that the above exemplary embodiments are specific examples of the following embodiments.

(Item 1)
Multiple magnetic sensors installed underwater to acquire magnetic signals,
A display unit that displays a list of the magnetic signal information for each of the plurality of magnetic sensors side by side.
A magnetic detection system including a control unit that controls the display of information on the magnetic signals for each of the plurality of magnetic sensors side by side on the display unit.

(Item 2)
A determination unit for determining whether or not a magnetic material has passed through each of the plurality of magnetic sensors is further provided based on the magnetic signal acquired by each of the plurality of magnetic sensors.
The control unit is configured to control each of the plurality of magnetic sensors to display not only the information of the magnetic signal but also the determination result by the determination unit side by side on the display unit. The magnetic detection system described in.

(Item 3)

Item

1 or 2, wherein the control unit is configured to control the information of the magnetic signals for each of the plurality of magnetic sensors to be arranged in tiles and displayed in a list on the display unit. Magnetic detection system.

(Item 4)
A determination unit for determining whether or not a magnetic material has passed through each of the plurality of magnetic sensors is further provided based on the magnetic signal acquired by each of the plurality of magnetic sensors.
The control unit displays the determination results of each of the plurality of magnetic sensors by the determination unit side by side on the display unit, and represents the determination results of each of the plurality of magnetic sensors as a representative. The item according to any one of items 1 to 3, wherein the determination result of the magnetic sensor is controlled to be displayed on the display unit larger than the determination result displayed in the list. Magnetic detection system.

(Item 5)
The control unit acquires magnetic substance detection information including the determination result indicating that the magnetic substance has passed through each of the plurality of magnetic sensors, and the magnetism of each of the plurality of magnetic sensors. When the body detection information is displayed in a list side by side on the display unit and the magnetic body detection information is acquired based on the magnetic signal acquired by at least one of the plurality of magnetic sensors. The magnetic detection system according to item 4, wherein the magnetic substance detection information as a representative is controlled to be displayed on the display unit larger than the magnetic substance detection information displayed in a list.

(Item 6)
An operation unit that accepts a selection operation for selecting one of the magnetic signal information from the information of the plurality of magnetic signals corresponding to the plurality of magnetic sensors is further provided.
The control unit displays the information of the magnetic signal for a common display target period for each of the plurality of magnetic sensors side by side on the display unit, and the one magnetism based on the selection operation for the operation unit. Item 1 to 5, wherein when the signal information is selected, the selected magnetic signal information of the one is displayed on the display unit in a state where the display target period is extended. The magnetic detection system according to any one item.

(Item 7)
An operation unit that accepts an operation for changing the display target period of the magnetic signal information displayed on the display unit is further provided.
The control unit changes the display target period for each of the plurality of magnetic sensors based on the operation on the operation unit, and displays the magnetic signal information about the changed display target period. The magnetic detection system according to any one of items 1 to 6, which is configured to be displayed side by side.

(Item 8)
The information of the magnetic signal includes magnetic waveform information representing the acquired magnetic signal by a waveform.
The magnetism according to any one of items 1 to 7, wherein the control unit controls to display the magnetic waveform information of each of the plurality of magnetic sensors side by side on the display unit. Detection system.

(Item 9)
A determination unit for determining whether or not a magnetic material has passed through each of the plurality of magnetic sensors is further provided based on the magnetic signal acquired by each of the plurality of magnetic sensors.
The control unit acquires magnetic sensor image information including a determination result by the determination unit and the magnetic waveform information for each of the plurality of magnetic sensors, and obtains a magnetic sensor image for each of the plurality of magnetic sensors. The magnetic detection system according to item 8, which is configured to display a list side by side on the display unit.

(Item 10)
The control unit acquires position information for each of the plurality of magnetic sensors, and based on the acquired position information, arranges the magnetic signal information at a position corresponding to the magnetic sensor on the map and displays the information. The magnetic detection system according to

item

1 or 2, which is configured to be displayed on a unit.

(Item 11)
Based on the magnetic signal acquired by each of the plurality of magnetic sensors, a determination unit that determines whether or not a magnetic material has passed through each of the plurality of magnetic sensors, and a determination unit.
A storage unit for storing the magnetic signal acquired by each of the plurality of magnetic sensors is further provided.
The control unit acquires the magnetic substance detection information including the determination result indicating that the magnetic substance has passed based on the determination result by the determination unit, and the acquired magnetic substance detection information and the said. The magnetic detection system according to any one of items 1 to 10, which is configured to be stored in the storage unit in association with a magnetic signal.

(Item 12)
For each of the plurality of magnetic sensors, the control unit before and after the time when the determination result corresponding to the stored magnetic substance detection information is acquired from the magnetic signals acquired by the magnetic sensor. The magnetic detection system according to item 11, wherein the magnetic signal acquired in a storage target period including at least one of the above is associated with the magnetic substance detection information and stored in the storage unit.

(Item 13)
When the magnetic substance detection information is acquired in the magnetic sensor of one of the plurality of magnetic sensors, the control unit comprises the one magnetic sensor and the one of the plurality of magnetic sensors. Item 12 is configured to store the magnetic signal acquired in the storage target period by the magnetic sensor different from the magnetic sensor in the storage unit in association with the magnetic substance detection information. The magnetic detection system described in.

(Item 14)
The control unit acquires the comment information input by the user, associates the magnetic signal with the comment information, and stores the comment information in the storage unit, and for each of the plurality of magnetic sensors, the magnetic signal and the comment. The magnetic detection system according to any one of items 11 to 13, which is configured to control the display of information visually on the display unit.

(Item 15)
The control unit is configured to output as report information in association with the stored magnetic signal and the magnetic substance detection information for each of the plurality of magnetic sensors, any one of items 11 to 14. The magnetic detection system described in the section.

(Item 16)
The step of acquiring the magnetic signal detected by each of the multiple magnetic sensors installed in the water,
A display method for magnetic detection, comprising a step of arranging and listing information on the magnetic signal for each of the plurality of magnetic sensors.

1 Magnetic sensor 31 Operation unit 32

Display unit

33, 233 Control unit 33b Judgment unit 33c Memory control unit (control unit)
33d, 233d Display control unit (control unit)
33e Information output unit (control unit)
34 Storage unit 100 Magnetic detection system

Claims

Multiple magnetic sensors installed underwater to acquire magnetic signals,
A display unit that displays a list of the magnetic signal information for each of the plurality of magnetic sensors side by side.
A magnetic detection system including a control unit that controls the display of information on the magnetic signals for each of the plurality of magnetic sensors side by side on the display unit.
A determination unit for determining whether or not a magnetic material has passed through each of the plurality of magnetic sensors is further provided based on the magnetic signal acquired by each of the plurality of magnetic sensors.
The control unit is configured to control each of the plurality of magnetic sensors to display not only the information of the magnetic signal but also the determination result by the determination unit side by side on the display unit. The magnetic detection system according to 1.
The magnetism according to claim 1, wherein the control unit controls to arrange the information of the magnetic signals for each of the plurality of magnetic sensors in a tile shape and display them in a list on the display unit. Detection system.
A determination unit for determining whether or not a magnetic material has passed through each of the plurality of magnetic sensors is further provided based on the magnetic signal acquired by each of the plurality of magnetic sensors.
The control unit displays the determination results of each of the plurality of magnetic sensors by the determination unit side by side on the display unit, and represents the determination results of each of the plurality of magnetic sensors as a representative. The magnetic detection system according to claim 1, wherein the determination result of the magnetic sensor is controlled to be displayed on the display unit larger than the determination result displayed in the list.
The control unit acquires magnetic substance detection information including the determination result indicating that the magnetic substance has passed through each of the plurality of magnetic sensors, and the magnetism of each of the plurality of magnetic sensors. When the body detection information is displayed in a list side by side on the display unit and the magnetic body detection information is acquired based on the magnetic signal acquired by at least one of the plurality of magnetic sensors. The magnetic detection system according to claim 4, wherein the magnetic substance detection information as a representative is controlled to be displayed on the display unit larger than the magnetic substance detection information displayed in a list.
An operation unit that accepts a selection operation for selecting one of the magnetic signal information from the information of the plurality of magnetic signals corresponding to the plurality of magnetic sensors is further provided.
The control unit displays the information of the magnetic signal for a common display target period for each of the plurality of magnetic sensors side by side on the display unit, and the one magnetism based on the selection operation for the operation unit. The first aspect of claim 1, wherein when the signal information is selected, the selected magnetic signal information of the one is displayed on the display unit in a state where the display target period is extended. Magnetic detection system.
An operation unit that accepts an operation for changing the display target period of the magnetic signal information displayed on the display unit is further provided.
The control unit changes the display target period for each of the plurality of magnetic sensors based on the operation on the operation unit, and displays the magnetic signal information about the changed display target period. The magnetic detection system according to claim 1, which is configured to display side by side.
The information of the magnetic signal includes magnetic waveform information representing the acquired magnetic signal by a waveform.
The magnetic detection system according to claim 1, wherein the control unit controls to display the magnetic waveform information of each of the plurality of magnetic sensors side by side on the display unit.
A determination unit for determining whether or not a magnetic material has passed through each of the plurality of magnetic sensors is further provided based on the magnetic signal acquired by each of the plurality of magnetic sensors.
The control unit acquires magnetic sensor image information including a determination result by the determination unit and the magnetic waveform information for each of the plurality of magnetic sensors, and obtains a magnetic sensor image for each of the plurality of magnetic sensors. The magnetic detection system according to claim 8, which is configured to display a list side by side on the display unit.
The control unit acquires position information for each of the plurality of magnetic sensors, and based on the acquired position information, arranges the magnetic signal information at a position corresponding to the magnetic sensor on the map and displays the information. The magnetic detection system according to claim 1, which is configured to be displayed on a unit.
Based on the magnetic signal acquired by each of the plurality of magnetic sensors, a determination unit that determines whether or not a magnetic material has passed through each of the plurality of magnetic sensors, and a determination unit.
A storage unit for storing the magnetic signal acquired by each of the plurality of magnetic sensors is further provided.
The control unit acquires the magnetic substance detection information including the determination result indicating that the magnetic substance has passed based on the determination result by the determination unit, and the acquired magnetic substance detection information and the said. The magnetic detection system according to claim 1, which is configured to be stored in the storage unit in association with a magnetic signal.
For each of the plurality of magnetic sensors, the control unit before and after the time when the determination result corresponding to the stored magnetic substance detection information is acquired from the magnetic signals acquired by the magnetic sensor. The magnetic detection system according to claim 11, wherein the magnetic signal acquired in a storage target period including at least one of the above is associated with the magnetic substance detection information and stored in the storage unit.
When the magnetic substance detection information is acquired in the magnetic sensor of one of the plurality of magnetic sensors, the control unit comprises the one magnetic sensor and the one of the plurality of magnetic sensors. The claim is configured so that the magnetic signal acquired in the storage target period is stored in the storage unit in association with the magnetic substance detection information by another magnetic sensor different from the magnetic sensor. 12. The magnetic detection system according to 12.
The control unit acquires the comment information input by the user, associates the magnetic signal with the comment information, and stores the comment information in the storage unit, and for each of the plurality of magnetic sensors, the magnetic signal and the comment. The magnetic detection system according to claim 11, wherein the information is visually controlled to be displayed on the display unit.
The magnetic detection according to claim 11, wherein the control unit is configured to associate the stored magnetic signal with the magnetic substance detection information and output it as report information for each of the plurality of magnetic sensors. system.
The step of acquiring the magnetic signal detected by each of the multiple magnetic sensors installed in the water,
A display method for magnetic detection, comprising a step of arranging and listing information on the magnetic signal for each of the plurality of magnetic sensors.