WO2021001957A1

WO2021001957A1 - Insect trap server and insect trap display system

Info

Publication number: WO2021001957A1
Application number: PCT/JP2019/026429
Authority: WO
Inventors: 脩奥矢; 知致南里; 洋萩平; 彩恵石川
Original assignee: 株式会社Ｌｕｃｉ
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2021-01-07

Abstract

[Problem] To increase visibility and usefulness related to analysis results of an insect-trapping sheet, and to promote application as information. [Solution] A management server 3 is connected by a network to an insect trap provided with a camera that captures images of an insect-trapping sheet, the management server 3 having an image holding unit 3d, an image analysis unit 3a, and a symbol screen generation unit 3b. The image holding unit 3d holds a captured image of the insect-trapping sheet received from the insect trap. The image analysis unit 3a analyzes the captured image held by the image holding unit 3d, and specifies insects caught on the insect-trapping sheet. The symbol screen generation unit 3b generates a symbol screen on the basis of the result of analysis by the image analysis unit 3a. The symbol screen has a two-dimensional region corresponding to the surface of the insect-trapping sheet, and is configured so that symbols that indicate the state of the insects corresponding to the position of the insects specified by the image analysis unit are notated in the two-dimensional region.

Description

Insect-catcher server and insect-catcher display system

The present invention relates to a server for an insect trap and a display system for an insect trap, and more particularly to visualization of insects captured by an insect trap sheet provided in the trap.

Conventionally, there is known a system that transmits an image of an insect trap sheet captured by a camera provided in an insect trap to a server and counts the number of insects captured on the insect trap sheet on the server side that receives the image. For example, Patent Document 1 discloses a pest outbreak prediction system including a terminal device and a server device. The terminal device includes a camera, a position information acquisition unit, and a control unit. The camera captures an insect trap sheet and acquires image data. The position information acquisition unit acquires the position information of the insect trap sheet (terminal device) from a satellite positioning system such as GPS (Global Positioning System). The acquired image data and position information are transmitted to the server device as insect repellent sheet information. The server device that receives the insect trap sheet information analyzes the image data, counts the number of pests for each insect sheet, and creates aggregated basic information including the counted number of pests and the position information. Then, the server device predicts the outbreak of pests based on the aggregated basic information for each insect repellent sheet.

JP 2015-154732

However, the above-mentioned Patent Document 1 focuses on counting the number of pests as the analysis result of the insect trap sheet, and does not describe anything about improving the visibility and usefulness of the analysis result. Since the analysis result of the insect trap sheet is useful information that gives the user various knowledge, it is desired to develop a user interface having excellent visibility in order to promote its utilization.

The present invention has been made in view of such circumstances, and an object of the present invention is to improve the visibility and usefulness of the analysis result of the insect trap sheet and to promote its utilization as information.

In order to solve such a problem, the first invention is a server for an insect trap, which is connected to a network to an insect trap with a camera that captures an image of an insect sheet, and has an image holding unit, an image analysis unit, and a symbol screen generation unit. I will provide a. The image holding unit holds the captured image of the insect trap sheet received from the insect trap. The image analysis unit analyzes the captured image held in the image holding unit to identify the insects captured on the insect trap sheet. The symbol screen generation unit generates a symbol screen based on the analysis result of the image analysis unit. The symbol screen has a two-dimensional area corresponding to the surface of the insect trap sheet, and in the two-dimensional area, a symbol indicating the state of the insect is displayed corresponding to the position of the insect specified by the image analysis unit. There is.

Here, in the first invention, when the symbol screen generation unit receives a request for acquiring a symbol screen with a specified period from a client connected to the insect trap server via a network, the symbol screen generation unit receives the symbol screen acquisition request in a specific insect trap for this specified period. It is preferable to generate a symbol screen and transmit it to the client based on the analysis result of at least one captured image captured in the inside. In this case, when there are a plurality of captured images captured within the specified period, the symbol screen generator superimposes each of the analysis results related to the plurality of captured images as a layer and unifies the symbol screen. It is desirable to generate.

In the first invention, the symbol screen generation unit divides the two-dimensional area constituting the symbol screen into a grid shape, divides the analysis result into each unit area, and then distributes the analysis result to each unit area to represent the state of the insect. It may be written in.

In the first invention, the symbol screen generation unit may generate a symbol screen for each type of insect specified by the image analysis unit.

In the first invention, the symbol preferably indicates the presence, orientation, or number of insects captured on the insect trap sheet.

In the first invention, a countermeasure pattern holding unit and a countermeasure selection unit may be provided. The countermeasure pattern holding unit holds a plurality of countermeasure patterns that pattern the countermeasure plans to be taken at the installation site of the insect trap. The countermeasure selection unit refers to the countermeasure pattern holding unit, selects a countermeasure pattern according to the analysis result, and presents it to the user.

The second invention provides a display system for an insect trap having a screen display unit, a user interface, and a display control unit. The user interface is displayed on the screen display unit, and the user can select the display mode. The display control unit switches the symbol screen displayed on the screen display unit according to the user's operation on the user interface. The symbol screen has a two-dimensional area and at least one symbol. The two-dimensional area corresponds to the surface of the trap sheet provided by the trap. The symbol is written in the two-dimensional area corresponding to the position of the insect captured on the insect trap sheet, and indicates the state of this insect. The display control unit displays the common symbol screen on the screen display unit when the common display mode is selected by the user interface. At least the first symbol and the second symbol are written on the common symbol screen. The first symbol indicates a particular type of insect. The second symbol represents a different type of insect than the first symbol and is different in appearance from the first symbol. In addition, the display control unit displays the type-specific symbol screen on the screen display unit when the type-specific display mode is selected by the user interface. On the type-specific symbol screen, only the symbols corresponding to the types of insects to be displayed are displayed among the plurality of types of symbols displayed on the common symbol screen.

Here, in the second invention, the symbol screen may further have a plurality of unit areas obtained by dividing the two-dimensional area into a grid shape. In each of the unit areas, symbols representing the states of insects existing in the unit area are written.

In the second invention, the symbol preferably indicates the presence of the captured insects on the insect trapping sheet, the orientation of the insects, or the number of insects.

According to the first invention, the insects captured on the insect trap sheet of the insect trap are analyzed, and a symbol screen is generated based on the analysis result. The symbol screen is visualized as a two-dimensional distribution of symbols showing the state of insects. As a result, the visibility and usefulness of the analysis result of the insect trap sheet can be improved, and the utilization as information can be promoted.

According to the second invention, it is easy to switch between a common symbol screen in which symbols of a plurality of types of insects are displayed and a symbol screen for each type in which only symbols of a specific type are displayed by operating a user interface. Can be done. As a result, it is possible to enhance the convenience when analyzing the analysis result of the insect trap sheet from various angles.

Configuration diagram of the insect trap network system The figure which shows an example of the captured image of the insect trap sheet Management server block configuration diagram The figure which shows an example of the analysis result of the captured image Diagram showing an example of an input screen The figure which shows the 1st example of a symbol screen The figure which shows the 2nd example of a symbol screen The figure which shows the 3rd example of a symbol screen Explanatory diagram of the symbol screen for a series of time-series analysis results Block configuration diagram of display system for insect traps

FIG. 1 is a configuration diagram of an insect trapping network system according to this embodiment. The insect trap network system 1 has a plurality of insect traps 2, a management server 3, and a plurality of clients 4, which are connected to the Internet via a network. The insect trap 2 is used for catching insects, and is installed in, for example, a factory or a restaurant. The insect trap 2 includes a replaceable insect trap sheet 2a, and the insect trap sheet 2a captures insects. In general, such an insect trap 2 is often provided with a means for attracting insects, and for example, emits light having a specific wavelength or a specific odor for attracting insects. Further, the insect trap 2 includes a camera 2b arranged so as to face the surface (insect trap surface) of the insect trap sheet 2a, and the camera 2b images the insect trap surface of the insect trap sheet 2a. FIG. 2 is a diagram showing an example of a captured image of the insect trapping sheet 2a acquired by the camera 2b. The captured image is periodically acquired, for example, once a day, and transmitted to the management server 3 each time.

The management server 3 accumulates the captured image of the insect trap sheet 2a received from the insect trap 2, and analyzes the captured image in order to identify the insect trapping status of the insect trap sheet 2a. Further, the management server 3 generates a symbol screen in which the analysis result of the captured image is visualized with a symbol in response to a request from the client 4 operated by the management authority (user) who manages the specific insect trap 2. Is sent to the client 4. Similarly, in response to the request from the client 4, a countermeasure plan to be taken at the installation site of the insect trap 2 is extracted and transmitted to the client 4. The symbol screen and the countermeasure plan presented to the user are effectively utilized for the user to analyze the analysis result of the insect trap sheet 2a or to take necessary countermeasures at the installation site of the insect trap 2.

FIG. 3 is a block configuration diagram of the management server 3. The management server 3 is mainly composed of an image analysis unit 3a, a symbol screen generation unit 3b, and a countermeasure selection unit 3c. As a storage unit for holding necessary information, an image holding unit 3d and an analysis result are used. It has a holding portion 3e and a countermeasure pattern holding portion 3f. The management server 3 stores the received captured image in the image holding unit 3d each time the captured image is received from the network-connected insect trap 2. As a result, the captured images of all the insect traps 2 connected to the network are centrally managed by the image holding unit 3d.

The image analysis unit 3a analyzes the captured image held in the image holding unit 3d by using the image processing technique, and identifies (identifies) the insects captured on the insect trapping sheet 2a. The analysis by the image analysis unit 3a may be performed each time the captured image is received, or may be performed collectively by periodic batch processing. By the analysis of the insect catching sheet 2a, the position, the type of the insect, and the posture (orientation) of the insect captured on the insect catching sheet 2a are specified. As an image analysis method for identifying insects, pattern matching using a template prepared for each type of insect, a learning model by machine learning, or the like can be used.

When using a learning model by machine learning, it is possible to use an object detection algorithm by deep learning such as YOLO (You Only Look Once) or SSD (Single Shot MultiBox Detector) in consideration of multi-scale performance. In this algorithm, by inputting an input (captured image) to a single neural network, extraction of an item area and classification of its attributes are performed collectively. The first feature is that it is a regression problem approach. Regression is an approach that directly predicts numerical values from trends in data. Instead of deciding a region and then classifying what it is, the coordinates and size of an object are directly predicted. Second, the process is completed in a single network. It can also be called "End-to-End" processing in the sense that after data is input, it goes to the end (output result) only by deep learning.

The learning model is constructed by supervised learning using data on the types of insects that the system should recognize as teacher data. This teacher data has a partial image of the insect and the attributes (type and posture) of the insect, and a large amount of diverse data is used including various types, various postures, various shooting directions, and the like. .. By using the learning model constructed in this way, insects can be identified accurately for various inputs.

The analysis result of the captured image is held by the analysis result holding unit 3e. FIG. 4 is a diagram showing an example of the analysis result of the captured image. In the figure, the "date and time" is the date and time when the captured image was captured (or received), the "ID" is the identification information unique to the insect trap 2, and the "position" is the position (coordinates) of the insects existing on the insect trap sheet 2a. , "Type" is the type of insect, and "Posture" is the direction of the insect based on the top. In the example of the figure, a total of 10 insects of 3 types A to C were identified in the image captured on May 1, 2018, which was captured by the specific insect trap 2 (ID = "001"). Shown.

The symbol screen generation unit 3b generates a symbol screen in which the analysis result is visualized with a symbol based on the analysis result of the image analysis unit 3a. The symbol screen is typically generated in response to a request from a user (client 4) who has the authority to view the analysis result, but in addition, the administrator side of the management server 3 generates the symbol screen. The symbol screen may be viewed directly on the display device connected to the management server 3.

FIG. 5 is a diagram showing an example of an input screen displayed on the display device on the client 4 side prior to the acquisition request of the symbol screen. This input screen has a target period designation field and a display mode selection field. The target period is the time range for viewing the analysis results, and it is possible to specify only a specific day (one analysis result when the imaging cycle is daily), or a specific period (multiple time-series). Analysis result) can also be specified. In addition, the display mode includes the orientation of insects (with or without display), the type of insect (common display, display by type), and area division (without or with). The means for designating the target period and the means for selecting the display mode are provided as the user interface 5 displayed on the display device, and the desired ones are designated and selected by the operation of the user.

When the symbol screen generation unit 3b receives the symbol screen acquisition request from the client 4, the analysis result holding unit 3e acquires the analysis result within the target period specified by the user, to be exact, within this target period. Read the analysis result related to the received captured image. Then, the symbol screen generation unit 3b generates a symbol screen based on the analysis result and transmits it to the client 4. The client 4 presents information to the user by displaying the symbol screen received from the management server 3 side.

The symbol screen has a two-dimensional area corresponding to the surface of the insect trap sheet 2a. In this two-dimensional region, when an insect is captured on the insect trap sheet 2a, at least one symbol is displayed. The form of the symbol indicates the state of an insect, for example, a dot, a circle, a square, etc. to indicate the presence of an insect captured on the insect trap sheet 2a, an arrow, etc. to indicate the direction of the insect, etc. When indicating the number of insects, numbers, large and small sizes, etc. are used respectively. Further, the notation position of the symbol on the two-dimensional region corresponds to the position of the insect captured on the insect trap sheet 2a, that is, the "position" of the analysis result shown in FIG.

FIG. 6 shows, as the first example of the symbol screen, the symbol screen displayed in the display mode of the direction of the insect (with), the type of insect (common), and the area division (without). When the type of insect is "common", the common symbol screen is displayed. On the common symbol screen, at least a first symbol indicating a specific type of insect and a second symbol indicating a type of insect different from the first symbol are displayed so that the type of insect can be identified. , The appearance (eg color) of the symbols is different from each other. In the example of the figure, three types of symbols are represented with different appearances corresponding to the types A to C of the insects.

In addition, when the direction of the insect is "Yes", as a symbol to be written, an arrow indicating the direction of the insect captured on the insect trap sheet 2a or a similar figure having a directing appearance is displayed. Used. The orientation of the symbol corresponds to the "posture" of the analysis result shown in FIG.

By browsing the common symbol screen shown in the figure, the user can intuitively understand the two-dimensional distribution of all insects (regardless of type) captured on the insect trap sheet 2a, and perform various analyzes. Can be done efficiently. In particular, notation with a symbol indicating the direction of the insect is useful when analyzing the invasion direction of the insect with reference to the insect trap 2 (insect trap sheet 2a). For example, when the arrows distributed on the symbol screen tend to point upward, it is presumed that the insect has invaded the trap 2 from the opposite lower side.

In the display mode of the direction of insects (none), symbols such as dots, circles, and numbers indicating the number of catches are used instead of the arrows shown in the figure.

FIG. 7 shows a symbol screen displayed in the display mode of the direction of the insect (with), the type of insect (by type), and the area division (without) as the second example of the symbol screen. When the type of insect is "by type", the symbol screen by type is displayed. On the type-specific symbol screen, only the symbols corresponding to the types of insects to be displayed are displayed among the plurality of types of symbols displayed on the common symbol screen. In the example of the figure, the common symbol screen shown in FIG. 6 is divided into layers, and three types of symbol screens corresponding to the insect types A to C are displayed. As the display form on the display device, a plurality of symbol screens for each type may be displayed side by side on the same display screen, or one display screen may be switched according to the operation of the user interface on the display screen. It may be displayed sequentially one by one. The type-specific symbol screen is useful for performing individual analysis focusing on a specific type of insect (dangerous insect, etc.).

FIG. 8 shows a symbol screen displayed in the display mode of insect orientation (none), insect type (regardless), and area division (yes) as a third example of the symbol screen. When the area division is "Yes", the gridded symbol screen is displayed. The gridded symbol screen is subdivided into a plurality of unit areas by dividing the two-dimensional area into a grid shape (whether or not vertical and horizontal lines are displayed). In each unit area, the analysis results to be visualized are distributed to each unit area, and a symbol representing the state of insects existing in this unit area, for example, the count number of insects existing in the unit area. A number indicating the number or a figure of a size (large or small) according to the number of counts is displayed. The gridded symbol screen is effective when the symbols are excessively crowded when the insects and the symbols have a one-to-one correspondence.

In addition, in the display mode of the direction of insects (with), an arrow representing the direction of insects is written together with a number indicating the count number, or an arrow of size (large or small) according to the count number is written.

FIG. 9 is an explanatory diagram of a symbol screen relating to a series of time-series analysis results. If there are a plurality of captured images acquired in time series within the target period specified by the user, the composite symbol screen is generated and displayed. The composite symbol screen is a screen in which each of the analysis results relating to a plurality of captured images is superimposed as a layer and unified, and visualized with a symbol based on this.

The synthetic symbol screen is effective when it is difficult to capture the insect catching tendency with only a single analysis result. As shown in the figure, the symbols are sparse and it is difficult to find the distribution tendency only from the individual analysis results, but according to the composite symbol screen, the symbols (counts) are concentrated in the upper left zone. I understand. From this, it is presumed that the insect is invading from the upper left direction of the insect trap 2. The same applies to the tendency of arrows on the composite symbol screen.

The user can estimate various matters by analyzing the symbol screen illustrated above. For example, if there is a bias in the distribution of insects on the insect trap sheet 2a, it is highly possible that the insects came from the zone with a large number of insects. Further, if a certain direction can be found in the insect trapping attitude (body axis in the traveling direction at the time of flight) on the insect trapping sheet 2a, it is highly possible that the insects have flown from the opposite direction. In addition, the insect trap 2 having a large number of insects is likely to be close to the source of the insects. Furthermore, the height of the trap 2 with a large number of traps may be close to the source of the insects.

With reference to FIG. 3 again, the countermeasure selection unit 3c refers to the countermeasure pattern holding unit 3f and selects a countermeasure pattern according to the analysis result of the image analysis unit 3a. The countermeasure pattern holding unit 3f holds a plurality of countermeasure patterns that pattern the countermeasure plans to be taken at the installation site of the insect trap 2. For example, when a specific pest with a high risk is detected as a result of analysis, a countermeasure pattern such as stopping the operation of the factory is selected. Further, when a predetermined number or more of insects are detected as the analysis result of one captured image, a countermeasure pattern such as prompting the replacement of the insect trap sheet 2a is selected. The selected countermeasure pattern is transmitted to the client 4 as a countermeasure plan to be taken at the installation site of the insect trap 2. The client 4 presents the countermeasure pattern received from the management server 3 side to the user as a countermeasure plan.

In addition, since the source and behavioral characteristics of insects tend to differ depending on the type of insect, presenting not only the common symbol screen but also the symbol screen for each type is extremely useful in analyzing the analysis results. .. From this point of view, the client 4 and the server 3 having a display function can be regarded as a display system for an insect trap for displaying a symbol image.

FIG. 10 is a block configuration diagram of a display system for insect traps. The insect trap display system 6 has a screen display unit 7, a user interface 5, and a display control unit 8. The screen display unit 7 is a general-purpose display device including a screen such as a liquid crystal display. The user interface 5 is displayed on the screen display unit 7, and specifically, the user operates on the input screen shown in FIG. 5 to specify conditions and select options. The display control unit 8 switches the symbol screen displayed on the screen display unit 7 according to the user's operation on the user interface 5. Specifically, the display control unit 8 causes the screen display unit 7 to display the common symbol screen when the common display mode (type of insect = "common") is selected by the user interface 5. As described above, on the common symbol screen, a plurality of types of symbols, each of which indicates the type of insect, are mixed and displayed. Further, when the type-specific display mode (insect type = "type-specific") is selected by the user interface 5, the display control unit 8 causes the screen display unit 7 to display the type-specific symbol screen. As described above, on the type-specific symbol screen, only the symbols corresponding to the types of insects to be displayed are displayed among the plurality of types of symbols displayed on the common symbol screen. In the case of the client 4, these symbol images are acquired by communication with the server 3, and in the case of the server 3, they are directly acquired from the symbol image generation unit 3b.

As described above, according to the present embodiment, the insects captured on the insect trap sheet 2a of the insect trap 2 are analyzed, and a symbol screen is generated based on the analysis result. This symbol screen is visualized as a two-dimensional distribution of symbols showing the state of insects. As a result, the visibility and usefulness of the analysis result of the insect trap sheet 2a can be enhanced, and the utilization as information can be promoted. In particular, the analysis results are analyzed by making it possible to present not only the common symbol screen in which the symbols of multiple species are commonly displayed, but also the symbol screen for each type in which only the symbols of specific types are displayed. The usefulness in the above can be further enhanced.

Further, according to the present embodiment, when a plurality of captured images exist within a period specified by a person who browses the analysis results, a composite symbol screen is generated after unifying a series of time-series analysis results. To do. This makes it possible to analyze insect-catching tendencies that are difficult to grasp from individual analysis results alone.

Further, according to the present embodiment, the analysis result is distributed to each unit area in which the two-dimensional area constituting the symbol screen is divided into a grid shape, and then the symbol representing the state of the insect is described for each unit area. .. As a result, the user can take a macroscopic overview of the two-dimensional distribution even in a situation where there are many insects (symbols) to be displayed as the analysis result.

Further, according to the present embodiment, switching between the common symbol screen and the symbol screen for each type can be easily performed by operating the user interface 5. As a result, it is possible to enhance the convenience when analyzing the insects captured on the insect trapping sheet 2a from various angles.

1 Insect catching network system 2 Insect catcher 2a Insect catching sheet 2b Camera 3 Management server 3a Image analysis unit 3b Symbol screen generation unit 3c Countermeasure selection unit 3d Image holding unit 3e Analysis result holding unit 3f Countermeasure pattern holding unit 4 Client 5 User interface (UI)
6 Display system for insect traps 7 Screen display 8 Display control

Claims

In the trap server connected to the network with the camera-equipped trap that captures the trap sheet,
An image holding unit that holds an image of the insect trap sheet received from the insect trap, and an image holding unit.
An image analysis unit that analyzes the captured image held in the image holding unit to identify the insects captured on the insect trapping sheet, and an image analysis unit.
It has a symbol screen generation unit that generates a symbol screen based on the analysis result of the image analysis unit.
The symbol screen is
It has a two-dimensional region corresponding to the surface of the insect catching sheet, and a symbol indicating the state of the insect is described in the two-dimensional region corresponding to the position of the insect specified by the image analysis unit. A server for insect traps that is characterized by this.
When the symbol screen generation unit receives a request for acquiring a symbol screen with a specified period from a client connected to the server for the insect trap, at least one image is taken within the specified period by the specific insect trap. The server for an insect trap according to claim 1, wherein the symbol screen is generated based on the analysis result of one captured image and transmitted to the client.
When there are a plurality of captured images captured within the designated period, the symbol screen generation unit generates the symbol screen after superimposing each of the analysis results related to the plurality of captured images as a layer and unifying them. The insect trap server according to claim 2.
The symbol screen generation unit distributes the analysis results to each unit area obtained by dividing the two-dimensional area constituting the symbol screen into a grid shape, and then represents a symbol representing the state of the insect for each unit area. The server for an insect trap according to any one of claims 1 to 3, wherein the server is characterized by the above.
The server for an insect trap according to any one of claims 1 to 3, wherein the symbol screen generation unit generates the symbol screen for each type of insect specified by the image analysis unit.
The server for an insect trap according to any one of claims 1 to 3, wherein the symbol indicates the presence of the insects captured on the insect trap sheet, the direction of the insects, or the number of insects.
A countermeasure pattern holding unit that holds a plurality of countermeasure patterns that pattern the countermeasure plans to be taken at the installation site of the insect trap, and
The method according to any one of claims 1 to 3, further comprising a countermeasure selection unit that selects a countermeasure pattern according to the analysis result and presents the countermeasure pattern to the user with reference to the countermeasure pattern holding unit. Server for insect traps.
In the display system for insect traps
Screen display and
A user interface displayed on the screen display unit and allowing the user to select a display mode,
It has a display control unit that switches the symbol screen displayed on the screen display unit according to the user's operation on the user interface.
The symbol screen is
A two-dimensional area corresponding to the surface of the insect trap sheet provided by the insect trap,
In the two-dimensional region, it is indicated corresponding to the position of the insect captured on the insect trapping sheet, and has at least one symbol indicating the state of the insect.
The display control unit
When the common display mode is selected by the user interface, at least a first symbol indicating a specific type of insect and an insect of a type different from the first symbol and the first symbol are used. Displays a common symbol screen on which a second symbol having a different appearance is displayed on the screen display unit.
When the type-specific display mode is selected by the user interface, the type-specific symbol screen in which only the symbols corresponding to the types of insects to be displayed are displayed among the plurality of types of symbols displayed on the common symbol screen is displayed. A display system for insect traps that is characterized by being displayed on the screen display.
The symbol screen further has a plurality of unit areas obtained by dividing the two-dimensional area into a grid, and each of the plurality of unit areas has a symbol representing the state of an insect existing in the unit area. The display system for an insect trap according to claim 8, wherein the display system is described.
The display system for an insect trap according to claim 8 or 9, wherein the symbol indicates the presence, orientation, or number of insects captured on the insect trap sheet.