JP2018021802A - Ultrasonic Detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonic detector that allows a user to perform work while checking an image based on the reflected wave of an ultrasonic wave at all places.SOLUTION: When a page display request signal transmitted from a web browser 24 mounted in a portable terminal 20 is received by a web browser 32 of a fish finder 12, an image display signal is generated from the image signal stored in a frame buffer 33 by an image capture process 32a and an image compression process 32b of the web browser 32. The page information for causing a detection image based on the generated image display signal to be displayed by the web browser 24 of the portable terminal 20 is generated by a communication control process 32c. The page information and the image display signal are transmitted by the communication control process 32c, on the basis of a protocol designated by the web browser 24, to the portable terminal 20 on which is mounted the web browser 24 that transmitted the display request signal.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an ultrasonic detection apparatus that displays an image based on a reception signal obtained by receiving a reflected wave of an ultrasonic wave transmitted in water.

  2. Description of the Related Art An ultrasonic detection device that detects an object to be detected such as an underwater fish school by transmitting and receiving ultrasonic waves is known. As an example of an ultrasonic detection device, a fish detection device transmits (irradiates) a thin beam-like ultrasonic wave from a vibrator arranged on the bottom of a ship toward the bottom of the water, and the reflected wave of the beam-like ultrasonic wave. Is configured to receive the transducer. Based on the received signal obtained by the transducer receiving the reflected wave, the fish finder detects images of the location of the object that has reflected the ultrasound and its reflection intensity (level) in time series. Displayed on the display device (for example, Patent Document 1).

JP 2013-79813 A

  Conventionally, in such an ultrasonic detection device such as a fish finder, a display device for displaying an image based on the reflected wave of the ultrasonic wave has been arranged at a fixed position, for example, in a ship's steering chamber. Therefore, the image can be confirmed only at the place where the display device is installed, and the work cannot be performed while confirming the image based on the reflected wave of the ultrasonic wave at various places. there were.

  The present invention has been made to solve the above-described problems, and provides an ultrasonic detection apparatus that allows a user to perform an operation while confirming an image based on an ultrasonic reflected wave at any location. The purpose is to provide.

  In order to achieve this object, an ultrasonic detector according to claim 1 transmits an ultrasonic wave into water and receives a reflected wave of the ultrasonic wave and a reflected wave of the ultrasonic wave transmitted by the vibrator. Display means for displaying an image based on a received signal generated by the vibrator, an image generating means for generating an image signal for displaying the image on the display means based on the received signal, and an external mobile phone When a page display request signal is received from the web browser of the mobile terminal by the transmission / reception means for transmitting / receiving a signal to / from the web browser mounted on the terminal, the transmission / reception means, An image display signal generating unit that generates an image display signal based on the image signal generated by the image generating unit, and the image display signal generated by the image display signal generating unit. Page information generating means for generating page information for causing the web browser to display an image, wherein the transmitting / receiving means is directed to the web browser that transmitted the display request signal from the web browser. Based on the designated protocol, the page information generated by the page information generation unit and the image display signal generated by the image display signal generation unit are transmitted.

  The ultrasonic detection device according to claim 2 is the ultrasonic detection device according to claim 1, wherein the image generation unit generates the image signal every first predetermined time, and the image display signal generation unit includes: Based on the image signal generated every first predetermined time by the image generating means, the image display signal is generated every second predetermined time, and the transmitting / receiving means is operated by the image display signal generating means. The image display signal generated every second predetermined time is transmitted to the web browser that has transmitted the display request signal based on a protocol designated by the web browser.

  The ultrasonic detection apparatus according to claim 3 is the ultrasonic detection apparatus according to claim 2, wherein the image display signal generation unit is configured to perform the first predetermined time by the image generation unit every second predetermined time. Then, image compression is performed on the generated image signal to generate the image display signal.

  The ultrasonic detection device according to claim 4 is the ultrasonic detection device according to claim 2 or 3, wherein the second predetermined time which is an interval at which the image display signal generation unit generates the image display signal is The time is the same as the first predetermined time, which is the interval at which the image signal is generated by the image generating means.

  The ultrasonic detection device according to claim 5 is the ultrasonic detection device according to any one of claims 1 to 4, wherein a signal transmitted / received by the transmission / reception means conforms to a wireless LAN standard, and the portable terminal Wireless LAN transmission / reception means for transmitting / receiving data to / from the network.

  The ultrasonic detection apparatus according to claim 6 is the ultrasonic detection apparatus according to any one of claims 1 to 5, wherein the storage unit stores the image signal generated by the image generation unit, and at least the First storage control for performing control to prohibit reading of the image signal from the storage unit by the image display signal generation unit during a period in which the image signal generated by the image generation unit is stored in the storage unit Means.

  The ultrasonic detection device according to claim 7 is the ultrasonic detection device according to any one of claims 1 to 6, wherein the storage unit stores the image signal generated by the image generation unit, and at least the Second storage control for performing control to prohibit storage of the image signal generated by the image generation means in the storage means during a period in which the image signal is read from the storage means by the image display signal generation means Means.

  The ultrasonic detection device according to claim 8 is the ultrasonic detection device according to any one of claims 1 to 7, wherein one or more operation means that can be operated by a user and that the operation means are operated. An operation detecting means for detecting, and an operation processing executing means for executing a process corresponding to the operating means for which the operation is detected when the operation detecting means detects that the operating means has been operated. The page information generating unit generates the page information including a symbol signal for displaying a symbol imitating a part or all of the operation unit on the web browser, and the transmitting / receiving unit includes the web information -When a signal indicating that the symbol displayed on the browser is selected by the user is received from the web browser, the operation means corresponding to the selected symbol is determined. And, an operation detection signal generating means for generating a signal for detecting the operation detecting means as the determination by said operation means is operated.

  An ultrasonic detection apparatus according to a ninth aspect is the ultrasonic detection apparatus according to the eighth aspect, further comprising setting means for invalidating the selection of the symbol by the web browser.

  According to the ultrasonic detection apparatus of the first aspect, an image based on a reception signal generated by receiving the reflected wave of the ultrasonic wave transmitted into the water by the vibrator is displayed on the display unit. The image signal to be displayed on the display unit is generated by the image generation unit based on the reception signal of the reflected ultrasonic wave. On the other hand, when a display request signal for a page transmitted from a web browser mounted on an external portable terminal is received by the transmission / reception unit, an image display signal based on the image signal generated by the image generation unit is displayed. It is generated by the signal generation means. Further, page information generating means generates page information for displaying an image based on the generated image display signal on the web browser of the portable terminal. Then, the page information and the image display signal are transmitted to the web browser that has transmitted the display request signal by the transmission / reception means based on the protocol specified by the web browser. Thereby, an image based on the reflected wave of the ultrasonic wave displayed on the display means of the ultrasonic detection device is transmitted to the external portable terminal, and the image is displayed on the user by the web browser mounted on the portable terminal. Can be confirmed. Therefore, there is an effect that the user can perform the work while confirming the image based on the reflected wave of the ultrasonic wave at any place. In addition, since images based on the reflected waves of ultrasonic waves are displayed on the web browser, images based on the reflected waves of ultrasonic waves can also be displayed to users who use mobile devices that do not have a dedicated application installed. There is an effect that the work can be performed while checking. In addition, the image display signal generation means, page information generation means, and transmission / reception means are provided separately from the image generation means, so that the main processing of the ultrasonic detection device can be changed without changing the main processing of the ultrasonic detection device. On the other hand, there is an effect that an image based on the reflected wave of the ultrasonic wave can be displayed.

  According to the ultrasonic detection device of the second aspect, in addition to the effect produced by the ultrasonic detection device of the first aspect, the following effect can be obtained. That is, the image signal of the image based on the reflected wave of the ultrasonic wave displayed by the display unit is generated by the image generation unit every first predetermined time. On the other hand, the image display signal is generated by the image display signal generating unit every second predetermined time based on the image signal generated by the image generating unit every first predetermined time. Then, the image display signal generated every second predetermined time is transmitted to the web browser that transmitted the display request signal by the transmission / reception means based on the protocol specified by the web browser. Thereby, the image based on the reflected wave of the ultrasonic wave updated and displayed on the display means every first predetermined time is updated every second predetermined time by the web browser mounted on the external portable terminal. Displayed. Therefore, the image based on the reflected wave of the ultrasonic wave displayed while being updated as needed on the display means can be displayed while being updated on the web browser. Therefore, there is an effect that it is possible to allow the user to perform an operation while confirming an image based on the reflected wave of the ultrasonic wave that is constantly updated at every place.

  According to the ultrasonic detection device of the third aspect, in addition to the effect produced by the ultrasonic detection device according to the second aspect, the following effect is obtained. That is, the image display signal generation unit generates an image display signal by performing image compression on the image signal generated by the image generation unit every first predetermined time, by the image display signal generation unit. . Thereby, there is an effect that the data amount of the image display signal transmitted to the portable terminal can be reduced.

  According to the ultrasonic detection device of the fourth aspect, in addition to the effect exhibited by the ultrasonic detection device of the second or third aspect, the following effect is obtained. That is, the second predetermined time that is the interval at which the image display signal is generated by the image display signal generating means is the same time as the first predetermined time that is the interval at which the image signal is generated by the image generating means. An image display signal representing the same image is not wastedly transmitted from the ultrasonic detection device to an external portable terminal, and is updated and displayed on the display means, and is based on an ultrasonic reflected wave. There is an effect that the image can be displayed on a web browser mounted on an external portable terminal without missing the image.

  According to the ultrasonic detection device of the fifth aspect, in addition to the effect produced by the ultrasonic detection device according to any one of the first to fourth aspects, the following effect can be obtained. That is, since the signal transmitted / received by the transmitting / receiving means is transmitted / received to / from the portable terminal in accordance with the wireless LAN standard by the wireless LAN transmitting / receiving means, the user can freely move the portable terminal to There is an effect that the operation can be performed while confirming the image based on the reflected wave. In addition, since a general mobile terminal can transmit and receive signals in conformity with the wireless LAN standard, the user can use the mobile terminal that the user has and use the ultrasonic detection device. There is an effect that the operation can be performed while confirming an image based on the reflected wave of the ultrasonic wave displayed on the display means.

  According to the ultrasonic detection device of the sixth aspect, in addition to the effect produced by the ultrasonic detection device according to any one of the first to fifth aspects, the following effect is obtained. That is, at least during the period in which the image signal generated by the image generation unit is stored in the storage unit, the first storage control unit prohibits the image display signal generation unit from reading the image signal from the storage unit. . Accordingly, there is an effect that an image signal being generated by the image generation unit can be prevented from being read by the image display signal generation unit and a strange image being displayed on the web browser of the portable terminal.

  According to the ultrasonic detection device of the seventh aspect, in addition to the effect exhibited by the ultrasonic detection device according to any one of the first to sixth aspects, the following effect is achieved. That is, at least during the period when the image signal is read from the storage means by the image display signal generation means, the second storage control means prohibits the image signal generated by the image generation means from being stored in the storage means. . Thereby, it is possible to prevent the image signal being read out by the image display signal generation unit from being overwritten by the image signal generated by the image generation unit, and as a result, a strange image is displayed on the web browser of the mobile terminal. There is an effect that can be suppressed.

  According to the ultrasonic detection device of the eighth aspect, in addition to the effect produced by the ultrasonic detection device according to any one of the first to seventh aspects, the following effect is obtained. That is, one or more operation means that can be operated by the user are provided, and when the operation detection means detects that the operation means has been operated, the operation detected by the operation processing execution means is detected. Processing corresponding to the means is executed. On the other hand, page information including a symbol signal for displaying a symbol imitating a part or all of the operation unit on the web browser is generated by the page information generating unit. As a result, a pattern imitating a part or all of the operation means is displayed on the web browser mounted on the external portable terminal together with the image based on the reflected wave of the ultrasonic wave displayed on the display means. . When the symbol displayed on the web browser is selected by the user and a signal indicating the selection is transmitted from the web browser, the signal is received by the transmission / reception means and corresponds to the selected symbol. The operating means to be determined is determined. Then, a signal for causing the operation detection means to detect that the determined operation means has been operated is generated by the operation detection signal generation means. Thereby, when the symbol displayed on the web browser is selected by the user, the manipulation detecting unit can detect that the manipulation unit corresponding to the selected symbol is operated. Therefore, the process according to the operation means corresponding to the symbol selected by the user is executed by the operation process execution means. Therefore, there is an effect that the ultrasonic detection apparatus can be remotely operated from the web browser. Further, since the operation detection signal generation means is provided in the transmission / reception means, it is possible to operate the ultrasonic detection apparatus from an external portable terminal without changing the main processing of the ultrasonic detection apparatus. effective.

  According to the ultrasonic detection device of the ninth aspect, in addition to the effect produced by the ultrasonic detection device according to the eighth aspect, the following effect is obtained. That is, the selection of the symbol imitating the operation means by the web browser can be invalidated by the setting means. Thereby, for example, when it is assumed that the use based on the reflected wave of the ultrasonic wave is displayed on a web browser on a plurality of portable terminals, the user of one portable terminal -In the case where it is difficult to operate the ultrasonic detection device without permission through the browser, there is an effect that the operation can be set to invalid.

It is the schematic which shows roughly the structure of the fish finder which is one Embodiment of this invention. It is a schematic diagram which shows the state in the case of performing underwater detection with the ship by which a fish finder is mounted. It is the figure which showed the display content state of the display apparatus at the time of displaying the detection image displayed on the display apparatus of the fish finder on the display apparatus of a portable terminal. It is a functional block diagram of a fish detection system. It is the block diagram which showed the electrical structure of the fish finder system. It is a figure which shows the flowchart which shows the fish finder process performed by the software for fish finder, the flowchart which shows the image taking in / compressed process performed by a web server, and the operation | movement of a video driver. It is a figure which shows the operation | movement of a web browser, the flowchart which shows the communication control process performed by a web server, and the figure which shows operation | movement of a key driver.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. First, with reference to FIG.1 and FIG.2, the outline of the fish detection apparatus 12 which is one Embodiment at the time of applying this invention to a fish detection apparatus is demonstrated. FIG. 1 is a schematic diagram schematically showing the configuration of the fish finder 12, and FIG. 2 is a schematic diagram showing from the side the state when the underwater detection is performed by the ship 11 on which the fish finder 12 is mounted. It is.

  As shown in FIGS. 1 and 2, the fish school detection device 12 is mounted on a ship 11 and detects a detection target G such as a school of fish directly under or around the ship 11. The fish finder 12 includes a main body 13, an operation button 14 provided on the main body 13 for receiving input from a user, a display device 15 formed integrally with the main body 13, and a transducer 16 that transmits and receives an ultrasonic beam TB. Consists of. There may be one operation button 14 or a plurality of buttons having different functions.

  The vibrator 16 is fixed to the bottom or stern of the ship 11 and is electrically connected to the main body 13 by a cable. The transducer 16 transmits (irradiates) a thin beam-like ultrasonic beam TB in one direction (for example, a direction directly below the ship 11) by a signal transmitted from the main body 13. The transducer 16 receives the reflected wave of the ultrasonic beam TB reflected from the detection target G and the water bottom such as the sea bottom, lake bottom, river bottom, and pond bottom, and the reception signal obtained by the reception is received by the main body. 13 to send.

  The main body 13 of the fish finder 12 is disposed, for example, in the steering chamber of the ship 11, and a detection image (ultrasonic beam TB) is obtained based on a reception signal obtained by the transducer 16 receiving a reflected wave of the ultrasonic beam TB. Image based on the reflected wave. The fish detection device 12 displays the detection image on the display device 15 to indicate the detection result in water to the user.

  In addition, the fish detection device 12 wirelessly communicates with the portable terminal 20 provided outside the fish detection device 12 for the purpose of causing the user to perform an operation while confirming the detection image at any location. The communication 30 is configured so that signals can be transmitted and received. That is, a fish detection system F is constructed by the fish detection device 12 and the portable terminal 20. The wireless communication 30 conforms to a wireless LAN (Local Area Network) standard such as IEEE 802.11n or IEEE 802.11ac, for example.

  The mobile terminal 20 includes a display device 21, and the detection image displayed on the display device 15 of the fish finder 12 can be displayed on the display device 21 of the mobile terminal 20. Thereby, even if the user is outside the wheelhouse of the ship 11, the user can check the detection image displayed on the portable terminal 20 at any place, and can work while checking the detection image.

  Here, with reference to FIG. 3, the display content of the display device 21 when the detection image displayed on the display device 15 of the fish finder 12 is displayed on the display device 21 of the portable terminal 20 will be described. . FIG. 3 is a diagram illustrating display contents of the display device 21 when the detection image displayed on the display device 15 of the fish detection device 12 is displayed on the display device 21 of the mobile terminal 20.

  The mobile terminal 20 is equipped with a web browser 24 for use in WWW (World Wide Web), and can display the web browser 24 on the display device 21. When a URL (Uniform Resource Locator) 25 of the fish finder 12 is specified by the user to the web browser 24, the web browser 24 transmits a page display request signal to the fish finder 12. This page display request signal is transmitted from the portable terminal 20 to the fish finder 12 via the wireless communication 30.

  Upon receiving the page display request signal from the web browser 24, the fish detection device 12 generates page information for causing the web browser 24 to display the page, and the mobile terminal 20 to which the page display request signal is transmitted. Is transmitted based on the protocol specified by the web browser 24. This page information includes information for displaying the detection image displayed on the display device 15 of the fish detection device 12 on the web browser 24 of the portable terminal 20 and is separately transmitted from the fish detection device 12. The detection image 22 is displayed on the web browser 24 based on the image display signal for displaying the detection image. In addition, the page information includes a symbol signal for displaying a symbol imitating the operation button 14 of the fish finder 12 on the web browser 24 of the mobile terminal 20. When the mobile terminal 20 receives the page information, the mobile terminal 20 displays not only the detected image 22 but also the operation button symbol 23 on the web browser 24.

  Next, functional blocks of the fish school detection system F will be described with reference to FIG. FIG. 4 is a functional block diagram of the fish detection system F.

  First, the fish finder 12 functionally includes a fish finder software 31, a web server 32, a frame buffer (VRAM (Video Random Access Memory)) 33, and a key driver 34. And the web server 32 operate independently.

  Specifically, the fish finder software 31 transmits and receives the ultrasonic beam TB by the transducer 16 and the ultrasonic beam TB at a predetermined time interval (for example, every 200 milliseconds) regardless of the operation of the web server 32. The detected image is formed based on the reflected wave of the image, and the formed detected image is written (stored) in the frame buffer (VRAM) 33. In addition, the fish finder software 31 performs control to display the detected image written in the frame buffer (VRAM) 33 on the display device 15.

  On the other hand, the web server 32 transmits / receives a signal to / from the web browser 24 of the mobile terminal 20 and causes the web browser 24 to display a page including the detection image 22 in accordance with an instruction from the web browser 24. .

  The web server 32 includes an image capture process 32a, an image compression process 32b, and a communication control process 32c. When the web server 32 receives a page display request signal from the web browser 24 of the portable terminal 20 by the communication control process 32c, the web server 32 executes the image capture process 32a and the image compression process 32b. Specifically, the web server 32 captures (reads out) the detected image from the frame buffer (VRAM) 33 by the image capturing process 32a regardless of the operation of the fish finder software 31, and compresses the captured detected image. The image is compressed by processing 32b to generate an image display signal.

  Image compression includes JPEG (Joint Photographic Experts Group) and JPEG 2000 which are still image compression standards, MPEG (Moving Picture Experts Group) -1 and MPEG-2, MPEG-4, H. H.264, which is a known standard corresponding to the web browser 24.

  On the other hand, the web server 32 generates page information for displaying the detected image 22 on the web browser 24 by the communication control process 32c, and the page information is transmitted to the mobile terminal 20 that has transmitted the page display request signal. Is transmitted based on the protocol designated by the web browser 24 of the portable terminal 20. The image display signal generated by the image compression process 32b is also transmitted to the portable terminal 20 that has transmitted the page display request signal based on the protocol specified by the web browser 24 of the portable terminal 20. .

  The mobile terminal 20 is equipped with the web browser 24 as described above. The web browser 24 includes at least a page display request process 24a, a page display process 24b, and a touch determination process 24c.

  When the URL 25 indicating the fish finder 12 is specified by the user, the web browser 24 transmits a page display request signal to the fish finder 12 by the page display request process 24a. Thereby, as described above, the page information and the image display signal are transmitted from the web server 32 of the fish finder 12 to the portable terminal 20. In the web browser 24, the detected image 22 and the detected image 22 are displayed on the web browser 24 displayed on the display device 21 according to the page information and the image display signal by the page display process 24b as shown in FIG. The operation button symbol 23 is displayed.

  In addition, the web server 32 once generates an image display signal for displaying a detection image on the web browser 24 based on the page display request signal from the web browser 24, and thereafter, the fish finder. Regardless of the operation of the software 31, the image signal of the detected image is read from the frame buffer (VRAM) 33 by the image capturing process 32 a at a predetermined time interval (for example, every 200 milliseconds), and the read image signal is compressed. The image is compressed by processing 32b to generate an image display signal. Then, the generated image display signal is transmitted to the mobile terminal 20 that has transmitted the page display request signal based on the protocol specified by the web browser 24 of the mobile terminal 20.

  As a result, the portable terminal 20 transmits an image display signal from the fish finder 12 at predetermined time intervals, so that it is displayed on the web browser 24 based on the transmitted image display signal. The detected detection image 22 is updated by the page display process 24b. Therefore, on the display device 15 of the fish finder 12, detected images that are updated at predetermined time intervals are displayed on the web browser 24 of the mobile terminal 20 while being updated. Therefore, the user who uses the portable terminal 20 can perform the work while checking the detection image constantly updated in the fish detection device 12 at every place. Further, since the image display signal transmitted from the fish finder 12 to the portable terminal 20 is an image compressed signal, the data amount of the image display signal transmitted to the portable terminal 20 can be reduced.

  Further, in the touch determination process 24c of the web browser 24, the presence / absence of an operation on the operation button symbol 23 displayed on the web browser 24 by the user of the mobile terminal 20 is detected. In the touch determination process 24c, when an operation of the operation button symbol 23 is detected, the type of the operated operation button symbol is determined, and a press request signal indicating that the button operation has been performed together with the type of the operation button symbol 23 is sent to the fish detection device 12. Transmit to the web server 32.

  When the web server 32 detects the reception of the press request signal by the communication control processing 32c, the web server 32 determines the type of the operation button operated on the web browser 24, and the physical key corresponding to the type of the operation button ( Assuming that the operation button 14) is operated, the key code (code indicating the type) of the physical key is output to the key driver 34.

  Here, when one of the plurality of operation buttons 14 provided in the fish finder 12 is operated, the key driver 34 changes the type of the operation button 14 from the operated operation button 14. The key code shown is received and output to the fish finder software 31. Upon receiving the key code output from the key driver 34, the fish finder software 31 executes processing corresponding to the key code, that is, processing corresponding to the operated operation button 14.

  On the other hand, in the fish detection system F of the present embodiment, as described above, when the operation button symbol 23 is operated on the web browser 24, the physical key corresponding to the type of the operated operation button symbol 23 ( As a result of the operation button 14) being operated, the key code of the physical key is output from the web server 32 to the key driver 34. Thus, the key driver 34 receives the key code, and outputs the key code to the fish hunting software 31 on the assumption that the actual physical key (operation button 14) has been operated. Since the fish finder software 31 executes processing according to the key code, even if the user operates the operation button symbol 23 displayed on the web browser 24, the operation button 14 of the fish finder 12 is pressed. It is possible to cause the fish finder 12 to execute the same processing as when it is operated. That is, the user can remotely operate the fish finder 12 using the terminal device 20.

  As described above, the fish finder software 31 operates regardless of the operation of the web server 32, and the web server 32 operates regardless of the fish finder software 31. Further, even when the operation button pattern 23 displayed on the web browser 24 of the mobile terminal 20 is operated by the user, the web server 32 seems to have operated the actual physical key (operation button 14). The key code is output to the key driver 34.

  That is, the fish finder 12 can display the detected image on the mobile terminal 20 without changing the fish finder software 31 and can display the detected image on the portable terminal 20 so that the user can work in any place. A person can remotely operate the fish finder 12 from the portable terminal 20. Therefore, it is possible to construct the fish detection system F of the present embodiment by simply adding the web server 32 to the fish detection device without making a major design change from the conventional fish detection device.

  Next, an electrical configuration of the fish school detection system F will be described with reference to FIG. FIG. 5 is a block diagram showing an electrical configuration of the fish detection system F. As shown in FIG.

  First, the fish finder 12 includes a control device 50 inside the main body 13. The control device 50 controls the operation of the fish finder 12 and includes a CPU (Central Processing Unit) 51, a flash memory 52, a RAM (Random Access Memory) 53, an input / output port 54, and a display controller 56. A VRAM 57, a transmission / reception circuit 58, and a wireless LAN controller 59.

  The CPU 51, flash memory 52, RAM 53, and input / output port 54 are connected to each other via a bus line 55. In addition to the operation buttons 14 described above, the input / output port 54 is connected to a display controller 56, a VRAM 57, a transmission / reception circuit 58, and a wireless LAN controller 59.

  The CPU 51 is an arithmetic device that executes various arithmetic operations for controlling the operation of the fish finder 12 in accordance with various program data 52 a to 52 d stored in the flash memory 52. The CPU 51 is configured to be capable of multitask processing, and can execute a plurality of tasks (programs, for example, the fish hunting software 31 and the web server 32) in parallel.

  The flash memory 52 stores various program data 52 a to 52 d executed by the CPU 51, and is rewritable nonvolatile data for storing fixed value data including various parameters necessary for the operation of the fish finder 12. Memory. Instead of the rewritable flash memory, a non-rewritable nonvolatile ROM (Read Only Memory) may be used. In this case, parameters that can be set / changed by the user may be stored in a flash memory provided separately from the ROM.

  Specifically, the flash memory 52 stores at least a fish hunting software program 52a, a web server program 52b, a key driver program 52c, and a video driver program 52d as various program data, and a browser operation valid flag as fixed value data. 52e is stored at least.

  The fish finder software program 52 a is a program for operating the fish finder software 31 in the fish finder 12. The web server program 52b is a program for operating the web server 32 in the fish finder 12. The key driver program 52 c is a program for operating the key driver 34 in the fish finder 12. Details of the fish finder software 31, the web server 32, and the key driver 34 are as described above with reference to FIG.

  The video driver program 52 c is a program for operating the video driver in the fish finder 12. The video driver has a function of arbitrating access rights to the VRAM 57 (frame buffer 33).

  For example, when the fish searching software 31 (see FIG. 4) generates a detection image and stores (writes) an image signal for displaying the detection image on the display device 15 in the VRAM 57, the video driver stores the detection signal in the VRAM 57. Is granted to the fish hunting software 31 and the VRAM 57 is locked so that the web server 32 cannot access the VRAM 57. When the image signal of the detection image by the fish hunting software 31 is stored (written) in the VRAM 57, the video driver unlocks the VRAM 57 so that the web server 32 can access the VRAM 57. Thereby, it is possible to suppress the image signal of the detected image being drawn by the fish finder software 31 from being read to the VRAM 57 by the web server 32 and displaying a strange image on the web browser 24 of the portable terminal 20.

  Further, when the web server 32 captures (reads out) an image signal from the VRAM 57 in order to generate an image display signal for causing the web browser 24 to display the detected image, the video driver inputs the image signal to the VRAM 57. The access right is given to the web server 32, and the VRAM 57 is locked so that the fish finder software 31 cannot access the VRAM 57. When the web server 32 finishes taking in (reading out) the image signal from the VRAM 57, the video driver unlocks the VRAM 57 so that the fish finder software 31 can access the VRAM 57. As a result, the image signal being read by the web server 32 is prevented from being overwritten by the image signal of the detected image generated by the fish hunting software 31, and as a result, a strange image is displayed on the web browser 24 of the mobile terminal 20. It can suppress being displayed on the top.

  The browser operation valid flag 52e is a flag for setting whether the user's operation (selection) on the operation button symbol 23 displayed on the web browser 24 of the mobile terminal 20 is valid or invalid.

  When the browser operation valid flag 52e is set to ON, the user's operation for the operation button symbol 23 is set to be valid. That is, when the operation button design 23 displayed on the web browser 24 is operated by the user, it is assumed that the physical key (operation button 14) corresponding to the operated operation button design 23 has been operated. Processing corresponding to the key is executed by the fish searching software 31.

  When the browser operation valid flag 52e is set to OFF, the user's operation on the operation button symbol 23 is set to be invalid. That is, even when the operation button symbol 23 displayed on the web browser 24 is operated by the user, the operation is invalidated, and the processing corresponding to the operated operation button symbol 23 is not executed. Is done.

  The browser operation valid flag 52e can be set by the user only by operating the operation button 14. When the browser operation valid flag 52e is set to OFF, for example, when it is assumed that the detection image is displayed on the web browser 24 for a plurality of portable terminals 20, the When the user of the portable terminal 20 has difficulty in operating the fish finder 12 via the web browser 24, the operation on the operation button symbol 23 displayed on the web browser 24 is invalidated. Can do.

  The RAM 53 is a rewritable volatile memory, and temporarily stores various data when the CPU 51 executes various programs. The RAM 53 stores at least reception signal data 53a.

  The reception signal data 53a is data indicating a reception signal obtained by the transducer 16 receiving the reflected wave of the ultrasonic beam TB. In the RAM 53, the reception signal input from the vibrator 16 is temporarily stored as reception signal data 53a.

  The received signal data 53a is analyzed by the fish hunting software 31, and the bottom of the water is determined by detecting the reflected wave having the strongest intensity from the received signal data 23a. Then, the depth of the water bottom is calculated from the time from when the ultrasonic beam TB is transmitted from the transducer 16 until the reflected wave having the strongest intensity is received.

  In addition, the reflected wave generated between the water surface and the bottom of the water is detected from the received signal data 53a by the fish finder software 31, and after the ultrasonic beam TB is transmitted from the transducer 16, the reflected wave is received. Based on this time, the water depth reflected by the ultrasonic beam TB is determined. Then, the intensity level of the reflected wave at the depth is specified from the received signal data 53a, and one display line segment indicating the intensity level of the reflected wave at the depth of the reflected wave between the range set by the user from the water surface. A detection image is generated.

  Then, the detection image for the one display line generated by the fish detection software 31 and the detection images for the plurality of one display line generated in the past are arranged in time series and displayed on the display device 15. A detection image to be generated is generated. An image signal for displaying the detected image on the display device 15 is stored in the VRAM 57 by the fish searching software 31.

  The display controller 56 is connected to the display device 15 and controls display of an image on the display device 15. The VRAM 57 functions as a frame buffer (frame buffer 33 in FIG. 4) that stores an image signal of an image to be displayed on the display device 15. When the fish detection software 31 generates a detection image based on the reflected wave of the ultrasonic beam TB, the image signal for displaying the detection image on the display device 15 is stored in the VRAM 57. The display controller 56 reads the image signal stored in the VRAM 57 and causes the display device 15 to display a detection image based on the image signal.

  The transmission / reception circuit 58 drives the transducer 16 based on the control from the fish finder software 31 to transmit the ultrasonic beam TB from the transducer 16, and transmits the reflected wave of the transmitted ultrasonic beam TB to the transducer 16. Is a circuit for receiving an input of a received signal obtained by receiving. The transmission / reception circuit 58 converts the received signal input from the transducer 16 into a digital value and stores it in the RAM 53 as received signal data 53a. Based on the received signal data 53 a, a detection image is generated by the fish detection software 31, and an image signal for displaying the detection image is stored in the VRAM 57.

  The wireless LAN controller 59 is connected to the antenna 60, and performs control for performing wireless communication 30 with another device (for example, the mobile terminal 20) based on the wireless LAN standard via the antenna 60. Is what you do. Under the control of the wireless LAN controller 59, signals can be transmitted / received to / from other devices by wireless communication.

  Next, the portable terminal 20 includes a CPU 61, a ROM 62, a RAM 63, an input / output port 64, a display controller 66, and a wireless LAN controller 67. The CPU 61, ROM 62, RAM 63, and input / output port 64 are connected to each other via a bus line 65. A display controller 66 and a wireless LAN controller 67 are connected to the input / output port 64.

  The CPU 61 is an arithmetic device that executes various calculations for controlling the operation of the mobile terminal 20 in accordance with various program data stored in the ROM 62. The ROM 62 is a non-rewritable nonvolatile memory for storing various program data executed by the CPU 61 and for storing fixed value data including various parameters necessary for the operation of the mobile terminal 20. A program for operating the web browser 24, a program for expanding an image display signal after image compression, a program for displaying an image on the web browser 24, and the like are stored in the ROM 62. Note that a rewritable nonvolatile flash memory may be used instead of the non-rewritable ROM.

  The RAM 63 is a rewritable volatile memory, and temporarily stores various data when the CPU 61 executes various programs.

  The display controller 66 is connected to the display device 21 and controls display of an image on the display device 21.

  The wireless LAN controller 67 is connected to the antenna 68, and controls to perform wireless communication 30 with another device (for example, the fish detection device 12) via the antenna 68 in accordance with the wireless LAN standard. Is to do. Under the control of the wireless LAN controller 67, signals can be transmitted / received to / from other devices by wireless communication.

  Next, referring to FIG. 6, a fish finder process that is a process in the fish finder software 31, an image capture process 32a and an image compression process 32b that are processes in the web server 32 (hereinafter, these two processes are combined). The details of the “image capture / compression process” and the operation of the video driver will be described. FIG. 6 is a flowchart showing a fish finder process executed by the fish finder software 31, a flowchart showing an image capture / compression process executed by the web server 32, and an operation of the video driver.

  First, the fish finder process executed by the fish finder software 31 is a process for performing the fish finder in the fish finder 12.

  In this fish finder process, first, it is determined whether or not the cycle for fish finder detection has come (S11). Fish school detection is performed at predetermined time intervals, for example, every 200 milliseconds. In the process of S11, whether or not a predetermined time has elapsed since the last positive determination (S11: Yes) in the process of S11 in the past (for example, whether or not 200 milliseconds or more have elapsed). Is determined, it is determined whether or not it has become a cycle for fish school detection.

  When it is determined that the predetermined time or more has not elapsed since the previous affirmative determination was made in the process of S11 in the past, and it is determined that the period for performing fish detection is not reached (S11: No), S16 described later. Move on to processing. On the other hand, if it is determined that a predetermined time has elapsed since the previous affirmative determination was made in the past processing of S11 and it is determined that the fish detection cycle has come (S11: Yes), the detection processing is executed (S12). .

  When the process of S11 is executed for the first time after the time of the fish finder process is started, it is immediately determined that it is a period for performing fish finder detection (S11: Yes), and the process proceeds to the detect process of S12 as it is.

  In the detection process, first, the ultrasonic beam TB is transmitted from the transducer 16 via the transmission / reception circuit 58, and the reflected wave reflected from the detection target G or the water bottom with respect to the ultrasonic beam TB is transmitted to the transducer 16. Receive at. A reception signal obtained by the transducer 16 receiving the reflected wave is stored in the RAM 53 as reception signal data 53 a via the transmission / reception circuit 31.

  Next, in the detection process, the bottom of the water is determined by detecting the reflected wave having the strongest intensity from the received signal data 53a stored in the RAM 53, and the strongest intensity after the ultrasonic beam TB is transmitted from the transducer 16. The depth of the bottom of the water is calculated from the time until the reflected wave is received. Further, in the detection process, based on the received signal data 53a, a reflected wave having a predetermined range of intensity level that can be recognized as a school of fish is detected from the reflected waves generated from the water surface to the bottom of the water, and the intensity of the predetermined range is detected. When there is a reflected wave of a level, it is recognized that a school of fish exists at the position where the reflected wave is generated. In the detection process, a detection image for one display line is generated by using the reception signal data 53a stored in the RAM 53.

  In the fish finder process, when the detection process (S12) is completed, an access right request signal to the VRAM 57 is then transmitted to the video driver (S13). When the video driver receives an access right request signal to the VRAM 57 from the fish finder software 31, the video driver grants the right to access the VRAM 57 to the fish finder software 31 on the condition that the VRAM 57 is not locked, and the web server 32. The VRAM 57 is locked so that the VRAM 57 cannot be accessed from (S21). If the VRAM 57 is locked when the access right request signal to the VRAM 57 is received from the fish finder software 31, it waits until the VRAM 57 is unlocked, and after the VRAM 57 is unlocked, the access right to the VRAM 57 is Is attached to the fish finder software 31 and the VRAM 57 is locked so that the web server 32 cannot access the VRAM 57.

  In the fish finder process, when the access right to the VRAM 57 is given from the video driver as a result of the process of S13, the detection image of one display line segment generated by the detection process of S12 and a plurality of one display generated in the past. A detection image to be displayed on the display device 15 is generated by arranging the detection images of the line segments in time series, and an image signal for displaying the detection image on the display device 15 is stored in the VRAM 57, thereby detecting the detection image. Is drawn on the VRAM 57 (S14).

  When drawing of the detected image on the VRAM 57 is completed, an access right return signal to the VRAM 57 is transmitted to the video driver (S15). When the video driver receives an access right return signal to the VRAM 57 from the fish hunting software, the video driver unlocks the VRAM 57 so that the web server 32 can access the VRAM 57 (S22).

  In this way, while the detection image is drawn in the VRAM 57 by the fish finder process, the VRAM 57 is locked so that the web server 32 cannot access the VRAM 57. Thereby, it is possible to suppress the image signal of the detected image being drawn to the VRAM 57 by the fish finder process from being read out by the web server 32 and displaying a strange image on the web browser 24 of the mobile terminal 20.

  In the fish finder process, after the process of S15, the process returns to the process of S11, waits for the period for performing the fish detection, and executes the processes of S12 to S15 again. On the other hand, if it is determined in the process of S11 that it is not the period for detecting fish school (S11: No), the process proceeds to the process of S16 to determine whether or not a key code is received from the key driver 34 (S16). .

  When the key code is received from the key driver 34, the web browser of the mobile terminal 20 is in a situation where the operation button 14, which is a physical key, is operated by the user or the browser operation valid flag 52 e is set to ON. This means that the operation button symbol 23 displayed on the screen 24 has been operated by the user.

  Therefore, if it is determined that the key code has been received by the process of S16 (S16: Yes), a key pressing process for executing a process corresponding to the operation button 14 indicated by the key code is executed (S17). The process returns to S11. On the other hand, if it is determined in S16 that the key code has not been received (S16: No), the process directly returns to S11.

  Next, image capture / compression processing executed by the web server 32 will be described. In this image capture / compression process, in order to transmit the detected image displayed on the display device 15 to the portable terminal 20, the image signal of the detected image drawn in the VRAM 57 is captured from the VRAM 57, and the captured image signal is converted into the captured image signal. This is a process of generating an image display signal by executing an image compression process. The image capture / compression process is started when a page display request signal is received from the web browser 24 of the mobile terminal 20, and the display of the page is terminated in the web browser 24 of the mobile terminal 20. Or when the display of the detection image 22 (see FIG. 3) displayed on the page is ended or stopped.

  In this image capturing / compression process, first, it is determined whether or not it is the period for capturing an image signal (S31). The image signal is captured at a predetermined time interval, for example, every 200 milliseconds. In the process of S31, whether or not a predetermined time has elapsed since the last positive determination (S31: Yes) in the process of S31 in the past (for example, whether or not 200 milliseconds or more have elapsed). Is determined, it is determined whether or not the period for capturing the image signal has come.

  Then, when it is determined that the predetermined time or more has not elapsed since the previous affirmative determination (S31: Yes determination) has been made in the past processing of S31, and it is determined that the period for capturing the image signal is not reached (S31). : No), the process of S31 is repeatedly executed until the period for capturing the image signal is reached. On the other hand, when it is determined that a predetermined time has elapsed since the previous positive determination (S31: Yes) was made in the process of S31 in the past and it is determined that the period for capturing the image signal is reached (S31: Yes), S32 The image capturing process 32a (see FIG. 4) shown in FIG. In addition, when the process of S31 is performed for the first time after the time of the fish finder process is started, it is immediately determined that it is a period for capturing an image signal (S31: Yes), and the image capture process 32a (S32 to S32) The process proceeds to S34.

  In the image capturing process 32a, first, an access right request signal to the VRAM 57 is transmitted to the video driver (S32). When the video driver receives an access right request signal from the web server 32 to the VRAM 57, the video driver grants the access right to the VRAM 57 to the web server 32 on the condition that the VRAM 57 is not locked, and the fish finder software 31. The VRAM 57 is locked so that the VRAM 57 cannot be accessed from (S23). If the VRAM 57 is locked when an access right request signal to the VRAM 57 is received from the web server 32, the VRAM 57 waits until the VRAM 57 is unlocked, and then the access right to the VRAM 57 is unlocked. Is locked to the web server 32 and the VRAM 57 is locked so that the fish finder software 31 cannot access the VRAM 57.

  In the image capture / compression process, if the video driver is given access right to the VRAM 57 as a result of the process of S32, the image signal of the detection image displayed on the display device 15 stored in the VRAM 57 is read out. Then, the read image signal is stored (copied) in a predetermined area of the RAM 53 as it is (S33). When the image signal copy process (S33) ends, an access right return signal to the VRAM 57 is transmitted to the video driver (S34). When receiving the access right return signal from the web server 32 to the VRAM 57, the video driver unlocks the VRAM 57 so that the fish finder software 31 can access the VRAM 57 (S24).

  As described above, while the image signal is being captured from the VRAM 57 by the image capture / compression process, the VRAM 57 is locked so that the fish finder software 31 cannot access the VRAM 57. Thereby, it is possible to prevent the image signal being captured by the web server 32 from being overwritten by the image signal generated by the fish finder software 31, and as a result, a strange image is displayed on the web browser 24 of the mobile terminal 20. Can be suppressed.

  In the image capture / compression process, after the process of S34, an image compression process 32b for performing image compression based on a predetermined image compression standard is executed on the image signal captured by the process of S33 (S35). The image signal subjected to the image compression is transmitted to the mobile terminal 20 as an image display signal by the communication control process 32c, as will be described later.

  Then, after the process of S35, the process returns to the process of S31, waits for the period for capturing the image signal, and executes the processes of S32 to S35 again. As a result, an image signal indicating a detected image displayed on the display device 15 is fetched from the VRAM 57 at every cycle (every predetermined time interval) at which the image signal is fetched, and an image display signal subjected to image compression is generated. .

  Next, with reference to FIG. 7, details of the operation of the web browser 24 of the mobile terminal 20, the communication control process 32 c that is a process in the web server 32 of the fish detection device 12, and the operation of the key driver 34. explain. FIG. 7 is a diagram illustrating an operation of the web browser 24, a flowchart illustrating a communication control process 32 c executed by the web server 32, and an operation of the key driver 34.

  Here, the communication control process 32c executed by the web server 32 is started during the start-up process after the fish finder 12 is turned on, and the fish finder 12 is turned off. Will continue to run.

  When the URL 25 indicating the fish finder 12 is designated by the user, the web browser 24 of the mobile phone 20 executes a page display request process 24a (see FIG. 4), and sends a page to the fish finder 12 to the page. The display request signal is transmitted (S41).

  The web server 32 of the fish finder 12 determines whether or not the page display request signal transmitted from the web browser 24 of the mobile terminal 20 has been received by the communication control process 32c (S51). If it is determined that the display request signal is received (S51: Yes), page information for displaying the detection image 22 (see FIG. 3) on the web browser 24 is generated, and the page information is converted to the page information. Is transmitted to the mobile terminal 20 that has transmitted the display request signal based on the protocol specified by the web browser 24 of the mobile terminal 20 (S52).

  When the web browser 24 of the portable terminal 20 receives the page information transmitted by the process of S52 of the communication control process 32c executed by the web server 32, the web browser 24 executes the page display process 24b and displays the detected image 22. The page (see FIG. 3) including the operation button pattern 23 imitating the operation button 14 which is a physical key is displayed on the web browser 24 (S42).

  On the other hand, in the communication control process 32c executed by the web server 32, the page display request signal is not received from the web browser 24 of the portable terminal 20 after the process of S52 is completed or by the process of S51. If it is determined (S51: No), it is then determined whether or not it is a cycle for transferring an image display signal for displaying the detected image 22 to the web browser 24 (S53).

  In the determination of S53, first, whether the display of the page based on the page information transmitted in the process of S52 is continued in the web browser 24 in the mobile terminal 20 and the display of the detection image 22 has not been completed. Judging. If the display of the page is not continued or the display of the detection image 22 is terminated, it is determined that the period is not the period for transferring the image display signal (S53: No). Transition to processing.

  In addition, when the display of the page continues and the display of the detection image 22 is not completed, the predetermined affirmative (S53: Yes) is performed after the previous processing in S53. By determining whether or not the time has elapsed (for example, whether or not 200 milliseconds or more have elapsed), it is determined whether or not the period for transferring the image display signal has been reached.

  Then, if a predetermined time or more has not elapsed since the previous affirmative determination (S53: Yes determination) was made in the process of S53 in the past, it is determined that it is not the cycle for transferring the image display signal (S53). : No), the process proceeds to S55. On the other hand, if a predetermined time or more has elapsed since the previous affirmative determination (S53: Yes determination) was made in the process of S53 in the past, it is determined that it is the cycle for transferring the image display signal (S53). : Yes), the process proceeds to S54.

  In the process of S54, the image signal of the detection image displayed on the display device 15 is image-compressed by the image compression process 32b, and it is confirmed whether or not the image display signal is generated, and then the image display If no signal is generated, the process of S54 is terminated as it is, and the process proceeds to S55. On the other hand, if the image display signal is generated, the image display signal is directed to the mobile terminal 20 that has transmitted the page display request signal, and the protocol specified by the web browser 24 of the mobile terminal 20 is used. Based on this (S54), the process proceeds to S55.

  When the web browser 24 of the portable terminal 20 receives the image display signal from the web server 32, the web browser 24 executes the page display process 24 b to expand the image display signal and generate the detection image 22. Then, the detection image 22 generated by the decompression is displayed on the page displayed on the web browser 24 (S43). As a result, as shown in FIG. 3, a page having the detected image 22 and the operation button symbol 23 is displayed on the web browser 24 on the display device 21 of the mobile terminal 20.

  In the web browser 24, the button touch determination process 24c is executed (S44), and it is determined whether or not the operation button symbol 23 displayed on the web browser 24 has been operated by the user. . Then, when the operation of the operation button symbol 23 is detected by the process of S44, the type of the operated button symbol is determined in the process of S44, and a press request signal indicating that the button operation has been performed together with the type is provided. , To the web server 32 of the fish finder 12.

  On the other hand, in the communication control process 32c executed by the web server 32, it is determined whether or not a press request signal has been received from the web browser 24 of the mobile terminal 20 (S55). If the press request signal has not been received (S55: No), the process directly returns to S51. On the other hand, when the press request signal is received (S55: Yes), the process proceeds to S56.

  In the process of S56, the value of the browser operation valid flag 52e is confirmed. If this value is ON (S56: Yes), the user's operation on the operation button symbol 23 is set to be valid. Therefore, the type of the operation button operated on the web browser 24 is determined from the received press request signal, and it is assumed that the physical key (operation button 14) corresponding to the type of the operation button is operated. A key code (a code indicating the type) of the key is generated (S57). The key code is output to the key driver 34 (S58), and the process returns to S51.

  When the key driver 34 receives the key code from the web server 32 (S61), the key driver 34 outputs the key code to the fish hunting software 31 assuming that the actual physical key (operation button 14) has been operated (S62). Since the fish finder software 31 executes processing according to the key code, even if the user operates the operation button symbol 23 displayed on the web browser 24, the operation button 14 of the fish finder 12 is pressed. It is possible to cause the fish finder 12 to execute the same processing as when it is operated. That is, the user can remotely operate the fish finder 12 using the terminal device 20.

  As described above, according to the fish finder 12 according to one embodiment of the present invention, based on the received signal generated when the transducer 16 receives the reflected wave of the ultrasonic beam TB transmitted into the water by the transducer 16. The detected image is displayed on the display device 15. An image signal to be displayed on the display device 15 is generated by the fish finder software 31 based on the received signal of the reflected wave of the ultrasonic beam TB and stored in the VRAM 57.

  On the other hand, when the display request signal of the page transmitted from the web browser 24 mounted on the external mobile terminal 20 is received by the web server 32 of the fish finder 12, the image signal stored in the VRAM 57 is An image display signal is generated by image capture / compression processing of the web server 32. Further, page information for displaying the detected image 22 based on the generated image display signal on the web browser 24 of the mobile terminal 20 is generated by the communication control process 32c.

  The page information and the image display signal are directed to the mobile terminal 20 equipped with the web browser 24 that has transmitted the display request signal, and based on the protocol specified by the web browser 24, the communication control processing 32c. Sent by.

  As a result, the detection image displayed on the display device 15 of the fish detection device 12 is transmitted to the external mobile terminal 20, and the user detects the detection image 22 by the web browser 24 mounted on the mobile terminal 20. Can be confirmed. Therefore, it is possible to cause the user to perform work while confirming the detection image 22 at any place.

  Further, since the detection image 22 is displayed on the web browser 24, the user who uses the mobile terminal 20 in which the dedicated application is not installed is allowed to perform work while confirming the detection image 22. Can do.

  Further, the image capturing process 32a, the image compression process 32b, and the communication control process 32c are processes performed by the web server 32 that operates regardless of the fish searching software 31, and therefore, the main processes of the fish detection device 12 are performed. The detected image 22 can be displayed on the external portable terminal 20 without changing the fish finder software 31.

  Moreover, the image signal of the detection image displayed by the display device is generated by the fish detection software 31 at predetermined time intervals. On the other hand, the image display signal transmitted to the portable terminal 20 is also generated by the web server 30 at predetermined time intervals based on the image signal generated by the fish hunting software 31 at the predetermined time intervals. Then, the image display signal generated at every predetermined time interval is directed to the portable terminal 20 equipped with the web browser 24 that has transmitted the display request signal, based on the protocol specified by the web browser 24. And transmitted by the communication control processing 32c. As a result, the detection image updated and displayed on the display device 15 at predetermined time intervals is also displayed on the web browser 24 mounted on the external mobile terminal 20 while being updated at predetermined time intervals. Therefore, it is possible to allow the user to perform the operation while confirming the detection image that is constantly updated at every place.

  Further, the image signal of the detected image generated every predetermined time and stored in the VRAM 57 is subjected to image compression at predetermined time intervals by the image compression processing 32b of the web server 32, and an image display signal is generated. Generated. Thereby, the data amount of the image display signal transmitted to the mobile terminal 20 can be reduced.

  In addition, the predetermined time interval, which is the interval at which the image display signal is generated by the web server 32, is set to the same time as the predetermined time interval at which the image signal of the detection image is generated by the fish finder software 31. An image signal representing the detected image is not transmitted to the external mobile terminal 20 unnecessarily, and the detected image is updated without being missed by the display device 15. It can be displayed on the web browser 24 mounted on the external portable terminal 20.

  In addition, since the signal transmission / reception between the fish detection device 12 and the portable terminal 20 is performed by the wireless communication 30 that complies with the wireless LAN standard, the user can freely move the portable terminal 20 and the web browser 24. The operation can be performed while checking the detection image 22 displayed on the screen. In addition, since the general mobile terminal 20 can transmit and receive signals in accordance with the wireless LAN standard, the user can use the mobile terminal 20 that the user has to use the fish finder. Work can be performed while checking the detection images displayed on the twelve display devices 15 with the portable terminal 20 that the user has.

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above-described embodiments, and various improvements and modifications can be easily made without departing from the spirit of the present invention. It can be guessed. Moreover, the numerical value quoted in each said embodiment is an example, and it is naturally possible to employ | adopt another numerical value.

  In the above embodiment, the predetermined time interval, which is the interval at which the image display signal is generated by the web server 32, is set to the same time as the predetermined time interval at which the image signal of the detection image is generated by the fish finder software 31. However, the predetermined time interval that is the interval at which the image display signal is generated by the web server 32 and the predetermined time interval at which the image signal of the detection image is generated by the fish finder software 31 are not necessarily the same time. It is not necessary to be different time intervals.

  In the above-described embodiment, the operation button pattern 23 imitating the operation button 14 of the fish finder 12 is displayed together with the page for displaying the search image 22 on the web browser 24 of the mobile terminal 20, and the user The case has been described in which the fish detection device 12 is configured to be remotely operated from the mobile terminal 20 by operating the operation button symbol 23 displayed on the browser 24. At this time, the operation button symbols 23 corresponding to all the operation buttons 14 provided in the fish detection device 12 may be displayed on the web browser 24, or the operation button symbols 23 corresponding to some of the operation buttons 14 may be displayed. It may be displayed on the web browser 24.

  In the above embodiment, when the browser operation valid flag 52e is set to OFF and the user's operation on the operation button design 23 is disabled, the operation button design 23 displayed on the web browser 24 is displayed by the user. Even when operated, the case where the operation corresponding to the operated operation button symbol 23 is not executed has been described.

  On the other hand, when the browser operation valid flag 52e is set to OFF and the user's operation on the operation button design 23 is disabled, the operation button design 23 is not displayed on the page displayed on the web browser 24. You may comprise so that it may become a display. Thereby, when a user's operation with respect to the operation button design 23 is invalidated, there is an effect that it is possible to prevent the operation button design 23 from being operated unnecessarily by the user.

  Further, when the browser operation valid flag 52e is set to OFF and the user's operation on the operation button symbol 23 is invalidated, the operation button symbol 23 displayed on the page of the web browser 24 is in an inactive state (selected It may be in a state where it cannot be performed. This also has an effect that when the user's operation on the operation button symbol 23 is invalidated, it is possible to prevent the user from operating the operation button symbol 23 wastefully.

  Further, when the browser operation valid flag 52e is set to OFF and the user's operation on the operation button symbol 23 is invalidated, the operation of the operation button symbol 23 is invalid on the page of the web browser 24. You may make it display the message, symbol, symbol, etc. which show. Thereby, it can be known to the user that the user's operation on the operation button symbol 23 is invalid.

  In the above embodiment, the case where the fish finder 12 and the portable terminal 20 communicate with each other by the wireless communication 30 has been described. However, the fish finder 12 and the portable terminal 20 are connected by a LAN cable or the like and communicated by wire. You may do it. In this case, the range in which the user can move with the portable terminal 20 is limited as compared with the case where the fish detection device 12 and the portable terminal 20 are communicated with each other by the wireless communication 30, but there is less error and the image display is reliably performed. There is an effect that the signal can be transmitted from the fish finder 12 to the portable terminal 20.

  In the above-described embodiment, the present invention is applied to the fish finder 12 that transmits the ultrasonic beam TB fixed in one direction in the water (directly below the ship 11), receives the reflected wave, and performs detection in the water. Although the case where it applied is demonstrated, it is not necessarily restricted to it. For example, a sonar-type fish detection device that detects the entire circumference or a partial range of the ship 11 by changing the transmission / reception direction (azimuth angle or depression angle) of the ultrasonic beam, or a Doppler shift of the ultrasonic beam is used. Thus, the present invention can be applied to various devices that use ultrasonic reflected waves, such as a tide meter that measures the velocity of a tidal current.

12 Fish finder (ultrasonic detector)
14 Operation buttons (operation means)
15 Display device (display means)
16 vibrator 20 portable terminal 23 operation button pattern 24 web browser 31 key driver (operation detection means)
32a Image capture processing (part of image display signal generation means)
32b Image compression processing (part of image display signal generation means)
32c Communication control processing (page information generation means, transmission / reception means)
57 VRAM (storage means)
59 Wireless LAN controller (wireless LAN transmission / reception means)
S14 (Image generation means)
S17 (Operation processing execution means)
S21 (first storage control means)
S23 (second storage control means)
S57, S58 (operation detection signal generating means)
TB ultrasonic beam

Claims (9)

A transducer that can transmit ultrasonic waves into the water and receive the reflected waves,
Display means for displaying an image based on a received signal generated by receiving the reflected wave of the ultrasonic wave transmitted by the vibrator;
Image generating means for generating an image signal for displaying an image on the display means based on the received signal;
A transmission / reception means for transmitting / receiving a signal to / from a web browser installed in an external mobile terminal;
Image display signal generation for generating an image display signal based on the image signal generated by the image generation means when the transmission / reception means receives a page display request signal from the web browser of the portable terminal Means,
Page information generating means for generating page information for causing the web browser to display an image based on the image display signal generated by the image display signal generating means,
The transmitting / receiving means is directed to the web browser that has transmitted the display request signal, based on the protocol specified by the web browser, the page information generated by the page information generating means, and the image display An ultrasonic detection apparatus that transmits the image display signal generated by the signal generation means. The image generation means generates the image signal every first predetermined time,
The image display signal generation means generates the image display signal every second predetermined time based on the image signal generated every first predetermined time by the image generation means,
The transmitting / receiving means designates the image display signal generated every second predetermined time by the image display signal generating means to the web browser that has transmitted the display request signal, from the web browser. The ultrasonic detection apparatus according to claim 1, wherein transmission is performed based on the transmitted protocol.   The image display signal generation means performs image compression on the image signal generated by the image generation means every first predetermined time every second predetermined time, and outputs the image display signal. The ultrasonic detection device according to claim 2, wherein the ultrasonic detection device is generated.   The second predetermined time, which is the interval at which the image display signal is generated by the image display signal generation means, is the same as the first predetermined time, which is the interval at which the image signal is generated by the image generation means. The ultrasonic detection apparatus according to claim 2, wherein the ultrasonic detection apparatus is time.   5. The wireless LAN transmission / reception means for transmitting / receiving a signal transmitted / received by the transmission / reception means to / from the portable terminal in conformity with a wireless LAN standard. Ultrasonic detector. Storage means for storing the image signal generated by the image generation means;
At least during the period in which the image signal generated by the image generation unit is stored in the storage unit, the image display signal generation unit performs control for prohibiting the image signal from being read from the storage unit. The ultrasonic detection apparatus according to claim 1, further comprising a storage control unit. Storage means for storing the image signal generated by the image generation means;
At least during the period in which the image signal is read from the storage means by the image display signal generation means, a control for prohibiting the storage of the image signal generated by the image generation means is performed. The ultrasonic detection apparatus according to claim 1, further comprising a storage control unit. One or more operating means that can be operated by a user;
Operation detecting means for detecting that the operating means has been operated;
An operation processing execution means for executing processing corresponding to the operation means for which the operation is detected when the operation detection means detects that the operation means has been operated,
The page information generation unit generates the page information including a symbol signal for causing the web browser to display a symbol imitating a part or all of the operation unit,
The transmitting / receiving means includes
When a signal indicating that the symbol displayed on the web browser is selected by the user is received from the web browser, the operation means corresponding to the selected symbol is determined, and the determination is made. The ultrasonic detection apparatus according to claim 1, further comprising an operation detection signal generation unit configured to generate a signal for causing the operation detection unit to detect that the operation unit has been operated.   9. The ultrasonic detection apparatus according to claim 8, further comprising setting means for invalidating the selection of the symbol by the web browser.