JP5234630B2 - Detector and display control method thereof - Google Patents

Description

  The present invention relates to a detection device such as a fish finder provided with a receiver that receives a signal reflected by a detection object and a display control method thereof.

  2. Description of the Related Art Conventionally, a fish finder including a transmitter / receiver that transmits / receives an ultrasonic signal, a measurement information memory that stores echo wave information received by the transmitter / receiver, and an image display is known (for example, Patent Documents). 1).

  In the fish finder disclosed in Patent Document 1, the display screen of the image display device is divided into three display areas, and has a wake display area, a normal echo display area, and a reduced echo display area. .

  The reduced echo wave display area is arranged at the bottom of the display screen so as to cover the entire width. In the reduced echo wave display area, a plurality of continuous images are displayed so as to be sent from the right side to the left side based on the echo wave information received by the transceiver. That is, in the reduced echo wave display area, images based on the echo wave information are displayed in time order from the right side to the left side. Here, in the reduced echo wave display area, an image based on the echo wave information for about 30 minutes is displayed.

  The normal echo wave display area is arranged in the upper right part of the display screen, and a part of the image displayed in the reduced echo wave display area is enlarged and displayed. In the normal echo wave display area, an image based on the echo wave information for about 60 seconds is displayed. The wake display area is arranged in the upper left part of the display screen and displays a map around the ship position two-dimensionally.

  In this fish finder, when the user operates the key operation unit, the image based on the echo information that the user wants to display is reduced from the echo information stored in the measurement information memory. It is possible to display in the echo wave display area and the normal echo wave display area.

JP 2008-134068 A

  However, since there is generally a large amount of echo information stored in the measurement information memory, the fish detector disclosed in Patent Document 1 above, from the echo information stored in the measurement information memory, There is a problem that it is difficult for a user to search for an image based on echo wave information to be displayed on the display screen.

  The present invention solves the above-described problems, and an object of the present invention is to easily find an image that the user wants to display on the display unit from among the image data stored in the storage unit. A possible detection device and a display control method thereof are provided.

  The detection device of the present invention stores a receiver that receives a signal reflected by a detection object, a first storage unit that stores image data based on the signal received by the receiver, and a first storage unit. And a control unit configured to display a plurality of continuous images on the display unit so as to be transmitted from one side to the other side by reading out the image data. The first display mode for displaying a plurality of continuous images to be sent from one side to the other side, and the display area of the display unit are divided into a plurality of stages, and each divided display area is sequentially The second display mode for displaying a plurality of images to be sent from one side to the other side can be switched.

  With this configuration, even when the amount of image data stored in the first storage unit is large, an image based on the image data can be displayed in one screen by displaying the image in the second display mode. Since many images can be displayed, it is possible to easily find an image that the user wants to display on the display unit from the image data stored in the first storage unit.

  In the detection device, preferably, the control unit causes the cursor to be displayed at a predetermined position in the display area of the display unit in the second display mode and is switched from the second display mode to the first display mode. The image of the part selected by the cursor is enlarged and displayed in the display area.

  With this configuration, when an image to be displayed is sent to the display area in the second display mode, the image is selected with the cursor, so that the image is displayed in the first display mode. Since the image is enlarged and displayed in the display area, the desired image can be easily and reliably switched by switching the display mode from the second display mode to the first display mode while the image to be displayed is selected with the cursor. Can be displayed.

  In the detection device, preferably, when the image data stored in the first storage unit is read in the first display mode, the read image data is temporarily stored as it is, A second storage unit that temporarily stores the read image data in a compressed state when the image data stored in the first storage unit is read in the second display mode; Prepare.

  With this configuration, the amount of information stored in the second storage unit in the second display mode is larger than the amount of information stored in the second storage unit in the first display mode. Can be suppressed.

  In the detection device, preferably, in the second display mode, the control unit displays a display in which a plurality of continuous images displayed in a predetermined display area among the divided display areas are adjacent to the predetermined display area. The image displayed on the display unit can be skipped so as to be displayed in the area.

  With this configuration, by skipping images, the user can more easily search for an image that the user wants to display on the display unit from among the image data stored in the first storage unit.

  In the detection device, preferably, the first storage unit is configured to be able to store predetermined information associated with the image data when storing the image data based on the signal received by the receiver. The control unit is configured to be able to skip the image displayed on the display unit based on the predetermined information stored in the first storage unit.

  With this configuration, by skipping images, the user can more easily search for an image that the user wants to display on the display unit from among the image data stored in the first storage unit.

  In addition, the display control method of the detection device of the present invention includes a receiver that receives a signal reflected by a detection target, a first storage unit that stores image data based on the signal received by the receiver, In a display control method for a detection device, comprising: a control unit for displaying image data stored in a storage unit so that a plurality of continuous images are sent from one side to the other side by reading the image data; The control unit divides the display area of the display unit into a plurality of stages, and sequentially displays a plurality of consecutive images from one side to the other side in each of the divided display areas. In such a case, the control unit causes the entire display area of the display unit to display a plurality of continuous images so as to be sent from one side to the other side.

  With this configuration, even when the amount of image data stored in the first storage unit is large, an image based on the image data is displayed within one screen by displaying an image in each divided display area. Therefore, the user can easily find an image that the user wants to display on the display unit from the image data stored in the first storage unit. And when a user discovers the image which he wants to display on a display part, an image can be displayed on the whole display area of a display part using a switching part.

  According to the present invention, it is possible to provide a detection device and a display control method thereof that allow a user to easily find an image that the user wants to display on the display unit from the image data stored in the storage unit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, a case where the present invention is applied to a fish finder which is an example of a detection device will be described.

  FIG. 1 is a block diagram showing the overall configuration of a fish finder according to an embodiment of the present invention. First, the configuration of the fish finder 100 according to the present embodiment will be described with reference to FIG.

  As shown in FIG. 1, a fish finder 100 according to an embodiment of the present invention includes a transducer 10, a transmission / reception unit 20, a control unit 30, a display unit 40, a hard disk 50, and an operation unit 60. ing. The fish finder 100 is provided on a ship (not shown) that navigates the sea surface. The vibrator 10 is an example of the “receiver” in the present invention, and the hard disk 50 is an example of the “first storage unit” in the present invention.

  The vibrator 10 is provided on the bottom of the ship and transmits an ultrasonic signal toward the sea bottom. The transducer 10 has a function of receiving an ultrasonic signal reflected from a detection target such as the seabed or a school of fish.

  The transmission / reception unit 20 includes a transmission unit and a reception unit. The transmission unit is configured to generate a transmission signal having a predetermined frequency and supply the generated transmission signal to the vibrator 10. That is, the transmission unit is provided to transmit the ultrasonic signal by driving the transducer 10 with the transmission signal. The receiving unit is provided for performing predetermined processing on an ultrasonic signal (hereinafter referred to as “reception signal”) received by the transducer 10 and outputting the processed signal to the control unit 30. Specifically, the received signal is converted to an intermediate frequency, and the received signal converted to the intermediate frequency is A / D converted.

  The control unit 30 has a function of generating image data based on the reception signal by processing the reception signal input from the transmission / reception unit 20. The control unit 30 includes a CPU 31, a ROM 32, a RAM 33, a video RAM 34, a display driver 35, and interfaces (hereinafter referred to as “IF”) 36 to 39, which are connected via a bus 30a. It is connected. The video RAM 34 is an example of the “second storage unit” in the present invention.

  The CPU 31 is provided to control the operation of the fish finder 100. The ROM 32 stores a program for controlling the operation of the fish finder 100. The RAM 33 is provided for temporarily storing data when the program is executed. The video RAM 34 is provided for temporarily storing image data output to the display unit 40. The display driver 35 is provided for converting image data stored in the video RAM 34 and outputting the image data to the display unit 40 in accordance with the standard of the display unit 40. The IFs 36 to 39 are provided to exchange data with the transmission / reception unit 20, the display unit 40, the hard disk 50, and the operation unit 60, respectively.

  The display unit 40 includes a liquid crystal panel and the like, and is configured to display an image based on the image data output from the control unit 30. The hard disk 50 is provided for storing image data output from the control unit 30. The operation unit 60 is provided for the user to operate the fish finder 100. The operation unit 60 includes a recording start button 61, a marker button 62, a playback button 63, a feed button 64, a switching button 65, and a detection start button 66. The switching button 65 is an example of the “switching unit” in the present invention.

  Here, in the present embodiment, the fish finder 100 displays the entire display area 41 of the display unit 40 so that a plurality of continuous images are sent from the right side (one side) to the left side (the other side). The display mode (see FIG. 3) and the display area 41 of the display unit 40 are divided into three stages, and a plurality of consecutive images are sent in order from the right side to the left side in the divided display areas 41a, 41b, and 41c. Thus, the second display mode (see FIG. 7) to be displayed can be switched.

  Next, with reference to FIG. 1, the fish detection operation of the fish detector 100 according to the present embodiment will be described. Note that in the following fish finder operation, the fish finder 100 performs display in the first display mode.

  First, the fish detection operation is started by operating the detection start button 66 of the operation unit 60 by the user.

  Then, a transmission signal is supplied from the transmission unit of the transmission / reception unit 20 to the vibrator 10. As a result, the transducer 10 is driven, so that an ultrasonic signal is transmitted from the transducer 10. Thereafter, an ultrasonic signal reflected by the detection target is received by the vibrator 10. Then, the reception unit of the transmission / reception unit 20 performs predetermined processing on the received signal. Thereafter, the control unit 30 performs arithmetic processing and image processing on the received signal, thereby generating image data based on the received signal. Next, image data based on the received signal is stored in the video RAM 34.

  Then, by repeatedly performing the above-described operation at a predetermined cycle, a plurality of continuous images are displayed on the display unit 40 so as to be sent from the right side to the left side. Specifically, the video RAM 34 sequentially stores image data based on the received signal. For example, as shown in FIG. 2, when “image data D6” is stored as the latest image data in the video RAM 34, a predetermined number of image data (image data D6) including the latest image data (image data D6) is stored. Image data D2 to D6) are output to the display unit 40. As a result, images P2 to P6 based on the image data D2 to D6 are displayed in the display area 41 of the display unit 40 as shown in FIG. As a result, the display area 41 displays the seabed 42 and the fish school 43 which are detection objects. In the first display mode, images based on five image data are displayed in one screen.

  Here, the fact that one screen is composed of five pieces of image data is for convenience of explaining the present invention, and in fact, one screen is composed of a large number of image data. Therefore, in FIG. 3, the images P2 to P6 based on the image data D2 to D6 are shown as two-dimensional images, respectively. However, in practice, the image based on the image data is one-dimensional linear image data. Yes (also in FIG. 5 described later).

  Thereafter, as shown in FIG. 4, when “image data D7” is stored as the latest image data in the video RAM 34, a predetermined number of image data (image data D7) including the latest image data (image data D7) is stored. D3 to D7) are output to the display unit 40. As a result, images P3 to P7 based on the image data D3 to D7 are displayed in the display area 41 of the display unit 40 as shown in FIG. Therefore, a plurality of images that are continuous over the entire display area 41 are displayed so as to be sent from the right side to the left side. In FIG. 4, when the image data is stored up to the right end of the video RAM 34 and the storage area of the video RAM 34 is full, the image data is overwritten by returning to the left end of the video RAM 34.

  Then, during the fish detection operation, the recording start button 61 of the operation unit 60 is operated by the user, whereby recording (saving) of the received signal is started. Specifically, image data based on the reception signal generated by the control unit 30 is stored in the video RAM 34 and also stored in the hard disk 50.

  For example, as shown in FIG. 3, when the images P <b> 2 to P <b> 6 based on the image data D <b> 2 to D <b> 6 are displayed in the display area 41 of the display unit 40, the marker button 62 of the operation unit 60 is operated by the user. In this case, the mark associated with the “image data D4” corresponding to the central image P4 is stored in the hard disk 50. The mark is an example of “predetermined information” in the present invention.

  Thereafter, when recording of the received signal is finished, a series of image data stored in the hard disk 50 is stored as one file. At this time, additional information such as a file number and date is also stored.

  Next, with reference to FIG. 1, the file reproduction operation of the fish finder 100 according to the present embodiment will be described.

  First, when the playback button 63 of the operation unit 60 is operated by the user, the playback of the selected file is started in the second display mode.

  Then, the image data stored in the hard disk 50 is output to the control unit 30 in order. Then, the image data input to the control unit 30 is stored in the video RAM 34 in a state compressed to 1/3.

  Specifically, as shown in FIG. 6, the image data compressed to 1/3 is sequentially stored in the first, second, and third stages of the video RAM 34. The image data Ds is image data obtained by compressing the image data D to 1/3 in the vertical direction and the horizontal direction. Further, image data Ds16 that is image data next to the image data Ds1 to Ds15 output to the display unit 40 in the first stage is stored at the top of the second stage. In addition, at the top of the third row, image data Ds31 that is image data next to the image data Ds16 to Ds30 output to the display unit 40 in the second row is stored.

  Then, the image data Ds 1 to Ds 45 stored in the video RAM 34 are output to the display unit 40. As a result, as shown in FIG. 7, images based on the image data Ds <b> 1 to Ds <b> 15 are displayed in the first display area 41 a of the display area 41 of the display unit 40. In the second display area 41b of the display area 41, images based on the image data Ds16 to Ds30 are displayed. An image based on the image data Ds31 to Ds45 is displayed in the third display area 41c of the display area 41. In the second display mode, images based on 45 image data are displayed in one screen.

  That is, the display area 41 is divided into three display areas 41a, 41b, and 41c. Then, the image displayed in the display area 41a and the image displayed in the display area 41b are continuous, and the image displayed in the display area 41b and the image displayed in the display area 41c are displayed in succession. The

  A triangle mark 44a indicating continuity with the display area 41b is displayed at the right end of the display area 41a, and a triangle mark 44b indicating continuity with the display area 41a is displayed at the left end of the display area 41b. Is displayed. A circular mark 45a indicating continuity with the display area 41c is displayed at the right end of the display area 41b, and a circular mark 45b indicating continuity with the display area 41b is displayed at the left end of the display area 41c. Is displayed.

  Reference numeral 46 denotes a frame-shaped cursor displayed at the center of the display area 41. As will be described later, by switching the display mode from the second display mode to the first display mode, the image of the portion selected (enclosed) by the cursor 46 is enlarged and displayed on the entire display area 41. The In the present embodiment, the position of the cursor 46 is fixed, and the image that comes to the position of the cursor 46 is selected by sequentially sending the images.

  Thereafter, as shown in FIG. 8, the image data Ds <b> 2 to Ds <b> 46 stored in the video RAM 34 is output to the display unit 40. Specifically, the image data Ds2 to Ds16 stored in the first stage of the video RAM 34 are output, the image data Ds17 to Ds31 stored in the second stage are output, and the image data Ds32 stored in the third stage. ~ Ds46 is output. As a result, a plurality of continuous images in the order of the display areas 41c, 41b, 41a are displayed so as to be sent from the right side to the left side. Note that the image sending speed can be set to a desired speed by the user because the image data is output from the hard disk 50.

  Then, when the feed button 64 of the operation unit 60 is operated by the user during file reproduction, the image displayed on the display unit 40 is skipped. For example, as shown in FIG. 6, when the feed button 64 is operated when the image data Ds1 to Ds45 stored in the video RAM 34 is being output to the display unit 40, as shown in FIG. The image data Ds16 to Ds60 stored in the video RAM 34 are output to the display unit 40.

  Specifically, the image data Ds16 to Ds30 stored in the first stage of the video RAM 34 are output, the image data Ds31 to Ds45 stored in the second stage are output, and the image data Ds46 stored in the third stage. ~ Ds60 is output. In this case, an image based on the image data Ds16 to Ds30 displayed in the second display area 41b is displayed in the first display area 41a and in the third display area 41c. An image based on the image data Ds31 to Ds45 is displayed in the second-stage display area 41b. In the third display area 41c, images based on the image data Ds46 to Ds60 are displayed.

  In addition, when the user operates the marker button 62 of the operation unit 60 during file reproduction, the image displayed on the display unit 40 is skipped so that an image based on the marked image data is displayed. To do. For example, when the image data D50 is marked and the marker button 62 is operated when the image data Ds1 to Ds45 stored in the video RAM 34 is output to the display unit 40 as shown in FIG. As shown in FIG. 10, the image data Ds28 to Ds72 stored in the video RAM 34 are output to the display unit 40.

  Specifically, the image data Ds28 to Ds42 stored in the first stage of the video RAM 34 are output, the image data Ds43 to Ds57 stored in the second stage are output, and the image data Ds58 stored in the third stage. ~ Ds72 is output. As a result, an image based on the image data Ds50 is displayed at the center of the display area 41 of the display unit 40. After that, when the marker button 62 is operated, a skip is performed so that an image based on the image data marked next to the image data D50 is displayed.

  Further, when the user operates the switch button 65 of the operation unit 60 during the reproduction of the file, the control unit 30 switches the second display mode to the first display mode. For example, as shown in FIG. 6, when the image data Ds1 to Ds45 stored in the video RAM 34 is being output to the display unit 40 (the state in FIG. 7), if the switching button 65 is operated, 11, the image data D21 to D25 read from the hard disk 50 are stored in the video RAM 34 as they are without being compressed. Then, the image data D21 to D25 stored in the video RAM 34 are output to the display unit 40. As a result, the image selected with the cursor 46 in FIG. 7 is enlarged and displayed in the entire display area 41 as shown in FIG.

  Thereafter, the image data is sequentially read from the hard disk 50, and the read image data is stored in the video RAM 34 as it is without being compressed. Then, the image data stored in the video RAM 34 is output to the display unit 40, so that a plurality of continuous images in the entire display area 41 are displayed so as to be sent from the right side to the left side (state in FIG. 5).

  In the present embodiment, as described above, the display area 41 is divided into the three display areas 41a, 41b, and 41c, so that even when the amount of image data in the file stored in the hard disk 50 is large, 1 Since many images based on the image data can be displayed on the screen, the image that the user wants to display on the display unit 40 can be easily searched from the image data in the file.

  In the present embodiment, when an image to be displayed is sent to the display area 41 in the second display mode, the image is selected by the cursor 46, so that the image is displayed in the first display mode. Is enlarged and displayed in the display area 41, the switch button 65 is operated while the image to be displayed is selected by the cursor 46, and the display mode is switched from the second display mode to the first display mode. Thus, a desired image can be displayed easily and reliably.

  Further, in the present embodiment, in the second display mode, the image data stored in the hard disk 50 is read out, and then the image data is compressed and stored in the video RAM 34, whereby the video RAM 34 in the second display mode is stored. It can be suppressed that the amount of information stored is larger than the amount of information stored in the video RAM 34 in the first display mode. Thereby, it is not necessary to separately provide a storage unit used in the second display mode and to increase the capacity of the video RAM 34.

  Further, in the present embodiment, by providing the marker button 62 and the feed button 64, the image displayed on the display unit 40 can be skipped, so that the image that the user wants to display on the display unit 40 can be more easily obtained. You can search.

  The present invention can employ various embodiments other than those described above. For example, in the above-described embodiment, an example in which the present invention is applied to the fish finder 100 has been described. However, the present invention is not limited thereto, and the present invention may be applied to a sounding instrument or a radar device that measures the depth of the seabed.

  Moreover, in the said embodiment, although the example which divides | segments the display area 41 into 3 steps | paragraphs in the 2nd display mode was shown, not only this but the display area 41 is divided | segmented into 2 steps | paragraphs in the 2nd display mode. It may be divided into four or more stages.

  In the above-described embodiment, an example in which the image data D is compressed to 1/3 in the horizontal direction in the second display mode has been described. However, the present invention is not limited to this. For example, the image data D is 1/5 in the horizontal direction. You may compress to. If comprised in this way, the image based on image data can be displayed more within 1 screen.

  Moreover, in the said embodiment, while storing the time information linked | related with image data, the image displayed on the display part 40 based on the time information may be skipped. The time information is an example of “predetermined information” in the present invention. Further, the time information may be displayed on the display unit 40.

  Moreover, although the said embodiment demonstrated the case where the image displayed on the display part 40 was sent, it is the same also when returning the image displayed on the display part 40. FIG.

  Moreover, in the said embodiment, although the example which displays in the 1st display mode during fish school detection was shown, it may be made to display in the 2nd display mode not only in this but during fish school detection. Good.

  Moreover, in the said embodiment, when image data Ds1-Ds45 are output to the display part 40, when the feed button 64 is operated, the image data Ds16-Ds60 are output to the display part 40. However, the present invention is not limited to this, and the image data Ds46 to Ds90 are output to the display unit 40 when the feed button 64 is operated while the image data Ds1 to Ds45 are output to the display unit 40. May be. Specifically, the image data Ds46 to Ds60 stored in the first stage of the video RAM 34 are output, the image data Ds61 to Ds75 stored in the second stage are output, and the image data Ds76 stored in the third stage. ~ Ds90 may be output.

  In the above embodiment, the position of the cursor 46 displayed in the second display mode is the center of the display area 41. However, the cursor 46 can be displayed at an arbitrary position in the display area 41. In the above embodiment, the position of the cursor 46 is fixed. However, the cursor 46 may be moved.

  In the above-described embodiment, after the second display mode is switched to the first display mode during file reproduction, the first display mode can be switched to the second display mode again.

  In the above-described embodiment, the example in which the reproduction of the selected file is started in the second display mode is shown. However, the present invention is not limited to this, and the reproduction of the selected file is started in the first display mode. Also good.

  In the above embodiment, an example in which the first display mode and the second display mode can be switched is shown. However, the present invention is not limited to this, and the display is always performed in the second display mode. Also good.

1 is a block diagram illustrating an overall configuration of a fish finder according to an embodiment of the present invention. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed the display part of the fish finder of FIG. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed the display part of the fish finder of FIG. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed the display part of the fish finder of FIG. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed video RAM of the fish finder of FIG. It is the figure which showed the display part of the fish finder of FIG.

Explanation of symbols

10 vibrator (receiver)
30 control unit 34 video RAM (second storage unit)
40 display unit 41, 41a, 41b, 41c display area 46 cursor 50 hard disk (first storage unit)
65 switching button (switching section)
100 Fish finder (detection device)

Claims (6)

A receiver for receiving a signal reflected by a detection object;
A first storage unit for storing image data based on a signal received by the receiver;
In a detection device comprising: a control unit for reading the image data stored in the first storage unit to display a plurality of continuous images on the display unit so as to be sent from one side to the other side. ,
The controller is
A first display mode for displaying a plurality of continuous images from one side to the other side over the entire display area of the display unit;
The display area of the display unit is divided into a plurality of stages, and the display area is switched to a second display mode in which a plurality of continuous images are displayed so as to be sent from one side to the other side in order. It is comprised so that can be performed, The detection apparatus characterized by the above-mentioned. The detection device according to claim 1,
The control unit displays a cursor at a predetermined position of the display area of the display unit in the second display mode, and is selected by the cursor when the second display mode is switched to the first display mode. And detecting an enlarged portion of the image on the display area. The detection device according to claim 1 or 2,
When the image data stored in the first storage unit is read in the first display mode, the read image data is temporarily stored as it is, and the second data A second storage unit for temporarily storing the read image data in a compressed state when the image data stored in the first storage unit is read in the display mode; A detection device comprising: The detection device according to any one of claims 1 to 3,
In the second display mode, the control unit displays a plurality of continuous images displayed in a predetermined display area among the divided display areas in a display area adjacent to the predetermined display area. As described above, the detection apparatus is configured to be able to skip the image displayed on the display unit. The detection device according to any one of claims 1 to 4,
The first storage unit is configured to be able to store predetermined information associated with the image data when storing image data based on a signal received by the receiver,
The control unit is configured to be able to skip an image displayed on the display unit based on the predetermined information stored in the first storage unit. apparatus. A receiver for receiving a signal reflected by a detection object;
A first storage unit for storing image data based on a signal received by the receiver;
A controller that reads out the image data stored in the first storage unit and causes a display unit to display a plurality of continuous images from one side to the other side. In the display control method,
After the control unit divides the display area of the display unit into a plurality of stages and sequentially displays a plurality of continuous images from one side to the other side in each divided display area,
When the switching unit is operated, the control unit displays the entire display area of the display unit so that a plurality of continuous images are sent from one side to the other side. Control method.

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