JPH10221435A - Fish finder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to immediately recognize such information as the rotating speed of an engine, etc., required for judging the need of a grounding avoiding action to quickly take a necessary action by providing an engine information acquiring means, etc., which acquires information on the engine. SOLUTION: A fish detector is provided with a monitor 1 positioned in the cabin of a ship and an echo sounder transducer 2 fixed to the bottom of the ship. The monitor 1 has a display 3 for displaying graphic information and character information and a fish finder control section 4. A signal converter (engine information acquiring means) 5 successively fetches engine signals and transmits the signals to the control section 4 after converting the signals into digital engine data by means of an A/D-converting section. The control section 4 forms fish finding data based on the engine data and signals received from the transducer 3 and displays the fish detecting data and engine data on the display 3 and, at the same time, makes various kinds of warnings to be displayed on the display 3 based on the data. Therefore, a grounding avoiding action can be taken with sufficient time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish finder for finding a school of fish by transmitting and receiving ultrasonic signals.

[0002]

2. Description of the Related Art Generally, ships such as fishing boats and pleasure boats are equipped with a fish finder for finding a school of fish by transmitting and receiving ultrasonic signals. While maneuvering to find a place where fish concentrate. At this time, if the depth of the seabed decreases during maneuvering, there is a risk of stranded, so it is necessary to pay close attention to the depth information displayed on the fish finder, but Usually, it is easier to concentrate on the fish school than the depth information.

Therefore, the conventional fish finder can register an alarm value indicating the seafloor depth to be warned, and when the seafloor depth becomes less than the warning value, issues an alarm and gives the ship operator a stranded ship. It informs you of the danger.
When the operator finds that the depth of the seabed is decreasing due to the warning of the fish finder, the operator confirms the navigation speed based on the engine speed or the like to determine whether or not an emergency is required. It is determined whether or not the vehicle should be decelerated, stopped, turned, etc. according to the degree of urgency.

[0004]

However, in the above-described conventional configuration in which the fish finder only issues an alarm, after the operator recognizes that the depth of the seabed has become shallow by the alarm, the engine speed and the like are reduced. Since it is necessary to check the instruments that display, it takes a long time to realize the navigation speed after recognizing that the depth of the seabed has become smaller, and there is no room to take the avoidance measures. There is a problem that wrong decisions may be made or measures may be too late.

[0005] In particular, ships such as fishing boats and leisure boats,
Typically, the instrument is limited in space due to its small size and narrow bridge. Therefore, such small vessels tend to be preferentially placed in places where fish finder directly connected to fishing are easily visible, and instruments such as engine speed tend to be placed in places where visibility is difficult. Therefore, the above problem is remarkable.

Therefore, according to the present invention, even when instruments are placed in a place where visibility is difficult, information such as the engine speed required for determining an avoidance measure can be immediately obtained, and the necessary measure can be taken quickly. It is intended to provide a fish finder that can be performed.

[0007]

In order to solve the above-mentioned problems, a first aspect of the present invention is a display means for displaying various kinds of information on a screen, and underwater exploration for acquiring underwater fish finder information by transmitting and receiving ultrasonic signals. Means, speed detection means for acquiring navigation speed information, and the fish finder information and navigation speed information are respectively taken from the underwater search means and speed detection means and output to the display means, and the depth of the water bottom in the fish finder information. A fish finder control means for outputting stranded warning information to the display means based on the warning value.
As a result, the grounding warning information is displayed on the display means on the screen,
When this display is visually recognized by the ship operator, the navigation speed information displayed on the display means is also visually recognized at the same time, so that the operation of separately viewing the navigation speed information display instrument as in the related art is unnecessary. As a result, it is possible to allow the avoidance measures for the grounding to be performed with a margin.

According to a second aspect of the present invention, in the fish finder according to the first aspect, the fish finder control means includes a marker setting mode for fixing the alarm value, and increasing or decreasing the alarm value in accordance with a navigation speed. It is characterized in that the mode can be switched to an automatic setting mode. Accordingly, the alarm value can be flexibly set for various ship maneuvering conditions such as the state of the water bottom and the weather, so that it is possible to reliably secure a margin time for avoidance measures.

A third aspect of the present invention is the fish finder according to the first or second aspect, wherein the speed detecting means has engine information obtaining means for obtaining engine information required for navigation, and The present invention is characterized in that a middle engine speed is used as the traveling speed information. Thus, the navigation speed information can be easily obtained by using the engine speed that is substantially proportional to the navigation speed as the navigation speed information.

According to a fourth aspect of the present invention, in the fish finder according to the third aspect, the fish finder control means is capable of outputting the engine information, and displays only the fish finder screen of the fish finder information. And an engine monitor mode in which an engine monitor screen of the engine information and the fish finder screen are displayed on the display means. By displaying the engine monitor screen and the fish finder screen on the display means, it is possible to obtain information necessary for navigation without visually recognizing other instruments.

According to a fifth aspect of the present invention, there is provided the fish finder according to any one of the first to fourth aspects, wherein the fish finder control means detects an engine failure based on the engine information. The defect information is output to the display means. As a result, engine failure information is displayed in addition to the grounding warning information, so that navigation safety can be sufficiently improved.

According to a sixth aspect of the present invention, there is provided an indicator, underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, speed detecting means for obtaining navigation speed information of the ship, and Warning value signal generating means for generating a warning value signal based on the navigation speed information of the ship; collision warning information generating means for generating collision warning information based on the water depth and the warning value signal; It is characterized by having an alarm notifying means for notifying an alarm based on the information, and a display means for displaying at least the underwater information on the display. Thereby, collision warning information is generated based on the navigation speed information of the own ship, and a warning is issued based on the collision warning information and the depth of the water bottom, so that even if the navigation speed changes every moment, It is possible to obtain sufficient time from when the warning is issued to when a collision such as a grounding occurs. Therefore, since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin regardless of a change in the traveling speed.

According to a seventh aspect of the present invention, there is provided an indicator, underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, speed detecting means for obtaining navigation speed information of the ship, and an alarm. Warning value signal generating means for generating a value signal; collision warning information generating means for generating collision warning information based on the water depth, the warning value signal and the navigation speed; and an alarm for notifying a warning based on the collision warning information. It has a notifying means and a display means for displaying at least the underwater information on the display. As a result, collision warning information is generated based on the depth of the water, the warning value signal, and the navigation speed, so that even if the navigation speed changes every moment, the warning is issued until the collision such as grounding occurs. Time can be obtained. Therefore, since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin regardless of a change in the traveling speed. Furthermore, by registering the relationship between the water depth, the alarm value signal, and the navigation speed as a data table in advance, even if the relationship between the relationship and the collision alert information is discontinuous, it is possible to deal with individual conditions. Therefore, it is possible to set the alarm notification timing in detail.

[0014] The invention according to claim 8 is a display, underwater exploration means for transmitting and receiving ultrasonic signals to obtain underwater information such as fish or underwater, and navigation speed information of the ship based on the number of revolutions of the engine. Speed detecting means for obtaining, engine information detecting means for detecting engine information necessary for navigation, alarm signal generating means for transmitting an engine failure alarm signal indicating engine abnormality based on the engine information, Speed information and an engine failure alarm signal are displayed on the display. Thus, the navigation speed information of the ship can be easily obtained by using the engine speed, which is substantially proportional to the navigation speed, as the navigation speed information. Then, since the ship can be maneuvered while simultaneously viewing the navigation speed information and the depth information of the own ship obtained in this way, even if the navigation speed changes every moment, there is enough time before collision such as grounding occurs. be able to. Therefore, since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin regardless of a change in the traveling speed. Further, the underwater information, the traveling speed information, and the engine failure warning signal are displayed on the display, so that the navigation safety can be more sufficiently improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the fish finder according to the present embodiment has a monitor 1 arranged in a cabin of a ship, and a transducer 2 fixed to the bottom of the ship. The monitor 1 has a display 3 for displaying graphic information and character information, and a fish finder control unit 4 described later.
The monitor 1 has an operation panel 8 arranged on the side of the display 3 as shown in FIG. 2. The operation panel 8 includes a mode changeover switch 8a, a power switch, a fish finder start switch, Various switches such as switches are provided.

The above-mentioned transducer 2 is connected to the fish finder controller 4. When a transmission signal from the fish finder controller 4 is input, the transmitter / receiver 2 converts the transmission signal into an ultrasonic signal and transmits the signal to the sea, receives a reflected wave, and receives the reflected wave as a received signal. 4 is output. An engine sensor 7 is connected to the fish finder controller 4 via a signal converter 5.
Comprises a rotation sensor, an oil level sensor, an exhaust temperature sensor, a charge sensor, and the like. In addition, existing general-purpose sensors such as a magnetic tachometer, a level meter, and a thermistor are used for these sensors. An engine sensor 7 composed of these various sensors is connected to the engine 6 and transmits engine information necessary for navigation such as engine speed, fuel oil level, exhaust temperature, cooling seawater temperature, and battery charge. The signal is output to the signal converter 5 as a signal.

The signal converter 5 includes an A / D conversion unit, a control unit, a communication processing unit, and the like (not shown). The A / D conversion unit sequentially takes in the engine signals and converts them into digital-valued engine data. RS232 by the processing unit
The data is transmitted to the fish finder controller 4 according to a communication standard such as C. The fish finder control unit 4 to which the engine data and the reception signal from the above-described transducer 2 are input in this manner executes the display processing routine of FIG. 7 and the abnormality determination processing routine of FIG. Fish finder data is formed based on signals, fish finder data and engine data are displayed in fish finder mode and engine monitor mode, and various alarms are displayed based on these data. I have.

The display screen in the fish finder mode by the fish finder controller 4 is configured to display fish finder data on the entire screen of the display 3 as shown in FIG. In this display screen, a depth display at a predetermined interval (10 m), a sea level line 11, a marker depth line 12 indicating a warning depth set by the operator, a fish school 13 and a sea floor 14 of fish finder data are shown.
And are displayed. At the upper left and lower left portions of the display screen, current position data indicating the current position (latitude and longitude) of the ship, seabed depth and engine speed data are displayed, respectively. Below the display position of, as shown in FIG. 4, a display area of an alarm mark 15 indicating that the seabed depth has become equal to or less than a predetermined value is set.

On the other hand, as shown in FIG. 5, the display screen in the engine monitor mode is configured so that the display surface is divided into two to display fish finder data and engine data. That is, the display screen includes a fish finder screen A and an engine monitor screen B. The fish finder screen A displays a sea surface line 11, a marker depth line 12, a school of fish 13, and a sea floor 14. On the other hand, the engine monitor screen B is divided into first to fourth display areas 16 to 19 so as to display substantially the same instruction content as the instrument data of the engine data. It is set for analog display of the main engine rotation speed indicating the number. Further, the second display area 17 and the fourth display area 19 are set for analog display of the fuel oil level indicating the remaining amount of fuel and the exhaust temperature, respectively. The third display area 18
Is set for warning display as shown in FIG.
Warning mark 1 indicating that the seabed depth has fallen below a predetermined value
5 display area and water cutoff mark 20 indicating the stop of cooling seawater
And a display area for a charging failure mark 21 indicating insufficient charge of the battery.

In the above configuration, the operation of the fish finder will be described with reference to the flowcharts of FIGS.

First, by operating the operation panel 8 of FIG. 2, initial settings such as a depth display, a display mode, a constant K used for calculating the alarm value T, and the like are performed (S1). The marker depth M is set by moving the marker depth line 12 up and down or by inputting a numerical value (S2). When the alarm mode is set by the mode changeover switch 8a in FIG. 2, the alarm value T of the seabed depth is set to the marker setting mode in which the alarm value T is determined based on the marker depth M, or the alarm value T is set based on the engine speed. After the selection is made (S3), the display mode is set by the display mode switch, and the screen display of the monitor 1 is changed to the fish finder mode display of FIG. (S4).

Thereafter, when the fish finder start switch is pressed, it is recognized that the start of the fish finder is instructed (S5).
As shown in FIG. 1 and FIG.
Output to the transmitter / receiver 2. When the transmission signal is converted into an ultrasonic signal by the transducer 2 and transmitted to the sea, and a reflected wave from a school of fish or the sea bottom is received, the received signal is converted into digital fish finder data and stored in the storage unit. (S6).

Next, the signal converter 5 receives the RS232C signal.
The transmission start data is transmitted according to a communication standard such as. Then, in the signal converter 5 receiving the engine data,
After various engine signals from the engine sensor 7 such as a rotation sensor and an oil level sensor are converted into digital value engine data and returned to the fish finder control unit 4, these engine data are fetched and stored in the storage unit. (S7).
Note that the processing in S6 and S7 may be performed in the reverse order of execution so that the engine data is acquired and then the fish finder data is acquired.

When the fish finder data and the engine data have been captured as described above, even if the alarm mode is switched after the fish finder is started, the mode switching of the operation panel 8 is performed so as to recognize the switched alarm mode. The current alarm mode is recognized from the setting state of the switch 8a (S8). Then, it is determined whether or not the alarm mode is the automatic setting mode (S9).
9, YES), the alarm value T is divided by the current engine speed of the own ship by a constant K and then multiplied by the depth value so as to increase or decrease the alarm value T in response to the increase or decrease of the engine speed. It is calculated (S10). On the other hand, if the mode is not the automatic setting mode (S9, NO), the marker depth M is replaced with the alarm value T so as to obtain a constant alarm value T regardless of the engine speed (S11).

As a method of obtaining the alarm value T in S11, a method of calculating the alarm value T by dividing the current engine speed of the own ship by a constant K and then multiplying by the marker depth M in the same manner as in S10. May be adopted. In this case, an alarm can always be issued based on the relationship between the depth and the engine speed (ship speed) regardless of the setting state of the alarm mode, so that extremely safe navigation can be realized. it can. In addition to the method of calculating the alarm value T by calculation as in S10 and S11, a data table indicating the relationship among the depth value, the marker depth M, the engine speed, and the alarm value data is created in advance. For example, when certain engine speeds and depth values are obtained, alarm value data corresponding to these engine speeds and depth values may be read from the data table and used as the alarm value T.

Thereafter, as in the case of the above-mentioned alarm mode, even if the display mode is switched after the detection of the school of fish is started, the display mode switching switch is set so that the display mode after the switching is recognized. Is recognized (S12). Then, it is determined whether or not the display mode is the automatic setting mode (S13). If the display mode is the fish finder mode (S13, YES), the fish finder mode display process is executed to display the display as shown in FIG. The fish finder data is displayed on the entire screen of step 3 (S14). On the other hand, if the mode is not the fish finder mode (S13, NO), by executing the engine monitor mode display processing, the fish finder screen A and the engine monitor screen B are divided into two in the screen of the display 3, as shown in FIG. And display it on the screen (S15).

Then, after the screen display of FIG. 3 or FIG. 5 is performed, abnormality determination processing is executed (S16). That is, FIG.
As shown in (5), it is determined whether there is any abnormality in the engine data taken in S7 (S21). If it is determined (S21, YES), the display screen is switched to the engine monitor mode display screen of FIG. 6 regardless of the current display mode setting state, and then a yellow alarm (“water outage”, "Charging failure") is blinked, or the graphic pointer 22 is switched from white to yellow and blinks (S22).

On the other hand, if there is no abnormality in the engine data (S21, NO), subsequently, it is determined whether or not the depth of the seabed in the fish finder data is larger than the alarm value T obtained in S10 or S11. (S23). If the value is not a large value (S23, NO), the alarm mark 15 is blinked in the current display mode so as to notify the seabed depth at which there is a risk of grounding. That is, when displayed in the fish finder mode of FIG. 3, as shown in FIG. 4, the alarm mark 15 blinks at a lower position near the display position of the engine speed, and is displayed in the engine monitor mode of FIG. If so, as shown in FIG. 6, an alarm mark 15 blinks at a lower position near the first display area 16 for displaying the engine speed in an analog manner. Then, by making the operator visually recognize the warning mark 15 to recognize that there is a possibility of a grounding, and at the same time visually recognize the engine speed,
The determination of the avoidance measures for the grounding is performed with a sufficient margin (S24). On the other hand, if the seabed depth is larger than the alarm value T (S23, YES), it is determined that the seabed depth has no risk of grounding, and the process returns to the display processing routine.

As described above, the fish finder according to the present embodiment, as shown in FIG. 1, includes a display 3 (display means) for displaying various information on a screen, a seabed depth in the sea (underwater), a school of fish, and the like. A transducer 2 (underwater exploration means) for acquiring fish finder data (fish finder information) by transmission and reception of an ultrasonic signal, a signal converter 5 (speed detection means) for acquiring engine speed (navigation speed information), Transmitter / receiver 2 for fish finder data and engine speed
And a fish finder control unit 4 which fetches the signal from the signal converter 5 and outputs it to the display 3 and outputs a warning mark 15 (grounding warning information) to the display 3 based on the seabed depth and the warning value in the fish finder data. (Fish finder control means).

In this embodiment, the engine speed is used as the traveling speed information and the signal converter 5 is used as the speed detecting means. However, the present invention is not limited to this.
The speed detecting means is, for example, a GPS (Global Positioning Sy
The navigation speed information may be obtained from position information such as stem). Further, in the present embodiment, the application for obtaining the underwater fish finder data is described. However, the present invention can be applied to the application for obtaining the underwater fish finder data such as a lake or a river.

As a result, the alarm mark 15 is displayed on the display 3 on the screen, and when this display is visually recognized by the boat operator,
Since the engine speed displayed on the display 3 is also visually recognized at the same time, it is not necessary to perform a separate operation of visually recognizing the engine speed display instrument as in the related art. It is possible to make it. And especially in this embodiment,
Since the engine speed in the engine information is used as the navigation speed information, the navigation speed information can be easily obtained.

Further, the fish finder controller 4 is configured to be switchable between a marker setting mode for fixing an alarm value and an automatic setting mode for increasing or decreasing the alarm value in accordance with the navigation speed. As a result, it is possible to flexibly set an alarm value for various ship maneuvering conditions such as the state of the seabed and the weather, and thus it is possible to reliably secure a margin time for avoidance measures.

Further, as shown in FIG. 3, the fish finder control section 4 displays a fish finder mode of displaying only the fish finder screen of the fish finder data on the display 3, and an engine monitor screen of the engine information as shown in FIG. The configuration is such that the mode can be switched to an engine monitor mode in which a fish finder screen is displayed on the display 3. Thus, by displaying the engine monitor screen and the fish finder screen on the display 3, information necessary for navigation can be obtained without visually recognizing other instruments. In the engine monitor mode, as shown in FIG. 9, for example, the exhaust temperature and the engine speed are set on the vertical axis and the horizontal axis, respectively, and the state of the trajectory is displayed while plotting the intersection of the exhaust temperature and the engine speed. It may be. In this case, the state (stability and the like) of the engine 6 can be easily grasped by visually recognizing the size of the trajectory.

Further, as shown in FIG. 1, the fish finder controller 4 controls the engine failure (water cut-off, charging failure, etc.) based on the engine data (engine information) from the engine sensor 7 obtained via the signal converter 5. As shown in FIG. 6, a yellow alarm ("water cut", "poor charging") blinks,
It is configured to output to the display 3 engine failure information that causes the graphic pointer 22 to switch from white to yellow and flicker. As a result, engine failure information is displayed in addition to the warning mark 15, so that navigation safety can be sufficiently improved.

The fish finder according to the present embodiment includes a display 3, a transmitter / receiver 2 (underwater search means) for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, and FIG. FIG.
As shown in the figure, a speed detecting means (S7) for obtaining navigation speed information of the own ship, an alarm value signal generating means (S10) for generating an alarm value signal based on the navigation speed information of the own ship, A collision warning information generating means (S23) for generating collision warning information (alarm value T) based on an alarm value signal; an alarm notifying means (S24) for notifying an alarm based on the collision warning information; Information on the display 3
(S13 to S15). The alarm may be sound from a siren or light from a pilot lamp.

Accordingly, collision warning information is generated based on the navigation speed information of the own ship, and a warning is issued based on the collision warning information and the depth of the water bottom, so that the navigation speed changes every moment. However, it is possible to obtain a sufficient time from when the warning is issued to when a collision such as a grounding occurs. Therefore, since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin regardless of a change in the traveling speed.

In this embodiment, the alarm value T is set based on the engine speed (traffic speed information) as in S10.
(Collision warning information), the seabed depth and the warning value T
And an alarm is issued (S2).
The method 4) is not limited to this, and collision warning information may be generated based on a water depth such as the sea depth, a warning value signal, and a navigation speed. That is, a data table of the water depth, the alarm value signal, and the navigation speed may be created in advance, and the collision alarm information may be generated in accordance with the data of the three. In this case, by registering the relationship between the water depth, the alarm value signal, and the navigation speed in advance as a data table, even if the relationship between these relationships and the collision alert information is discontinuous,
Since the collision warning information can be set according to each condition, the warning notification time can be set in detail.

The fish finder according to the present embodiment includes a display 3, a transmitter / receiver 2 (underwater search means) for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, and FIG. FIG.
As shown in the figure, a speed detecting means (S7) for obtaining the traveling speed information of the own ship based on the engine speed, and an engine information detecting means (S2) for detecting engine information necessary for the navigation.
1), an alarm signal generating means (S22) for transmitting an engine failure alarm signal indicating an engine abnormality based on the engine information, and displaying the underwater information, the traveling speed information, and the engine failure alarm signal on the display. (S16) This is the configuration.

Thus, the navigation speed information of the ship can be easily obtained by using the engine speed, which is substantially proportional to the navigation speed, as the navigation speed information. And
The collision warning information is generated based on the navigation speed information of the own ship obtained in this manner, and a warning is issued based on the collision warning information and the depth of the water bottom, so that the navigation speed changes every moment. However, it is possible to obtain a sufficient time from when the warning is issued to when a collision such as a grounding occurs. Therefore,
Since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin irrespective of a change in the traveling speed. Further, the underwater information, the traveling speed information, and the engine failure warning signal are displayed on the display, so that the navigation safety can be more sufficiently improved.

[0040]

According to the first aspect of the present invention, a display means for displaying various information on a screen, an underwater exploration means for acquiring underwater fish finder information by transmitting and receiving ultrasonic signals, and a speed detecting means for acquiring navigation speed information The fish finder information and the navigation speed information are taken from the underwater surveying means and the speed detecting means, respectively, and output to the display means. And a fish finder control means for outputting to the display means.
As a result, the grounding warning information is displayed on the display means on the screen,
When this display is visually recognized by the operator, the navigation speed information displayed on the display means is also visually recognized at the same time, so that the operation of separately viewing the navigation speed information display instrument as in the related art is unnecessary. As a result, there is an effect that it is possible to perform the avoidance measures for the grounding with a margin.

According to a second aspect of the present invention, in the fish finder according to the first aspect, the fish finder control means includes a marker setting mode for fixing the alarm value, and increasing and decreasing the alarm value in accordance with the navigation speed. In this configuration, the mode can be switched to an automatic setting mode. Thus, the alarm value can be flexibly set for various ship maneuvering conditions such as the state of the water bottom and the weather, so that it is possible to ensure the margin time for avoidance measures.

According to a third aspect of the present invention, there is provided the fish finder according to the first or second aspect, wherein the speed detecting means has engine information obtaining means for obtaining engine information necessary for navigation, and The engine speed is used as the traveling speed information. Accordingly, there is an effect that the navigation speed information can be easily obtained by using the engine speed, which is substantially proportional to the navigation speed, as the navigation speed information.

According to a fourth aspect of the present invention, in the fish finder according to the third aspect, the fish finder control means is capable of outputting the engine information, and displays only the fish finder screen of the fish finder information on the display means. On the screen, and an engine monitor mode for displaying an engine monitor screen of the engine information and the fish finder screen on the display means. Thus, by displaying the engine monitor screen and the fish finder screen on the display means, it is possible to obtain information necessary for navigation without visually recognizing other instruments.

According to a fifth aspect of the present invention, there is provided the fish finder according to any one of the first to fourth aspects, wherein the fish finder control means detects an engine failure based on the engine information, and detects the engine failure. The defect information is output to the display means. As a result, the engine failure information is displayed in addition to the grounding warning information, so that there is an effect that the navigation safety can be sufficiently improved.

According to a sixth aspect of the present invention, there is provided an indicator, an underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, a speed detecting means for obtaining navigation speed information of own ship, Warning value signal generating means for generating a warning value signal based on the navigation speed information of the ship; collision warning information generating means for generating collision warning information based on the water depth and the warning value signal; It is configured to include an alarm notifying unit for notifying an alarm based on the information, and a display unit for displaying at least the underwater information on the display. Thereby, collision warning information is generated based on the navigation speed information of the own ship, and a warning is issued based on the collision warning information and the depth of the water bottom, so that even if the navigation speed changes every moment, It is possible to obtain sufficient time from when the warning is issued to when a collision such as a grounding occurs. Therefore, a margin time for avoiding a collision can always be ensured for a predetermined time or more, so that there is an effect that the avoidance measure can always be performed with a margin regardless of a change in the traveling speed.

According to a seventh aspect of the present invention, there is provided an indicator, underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, speed detecting means for obtaining navigation speed information of the ship, and an alarm. Warning value signal generating means for generating a value signal; collision warning information generating means for generating collision warning information based on the water depth, the warning value signal and the navigation speed; and an alarm for notifying a warning based on the collision warning information. It is configured to include a notification unit and a display unit that displays at least the underwater information on the display. As a result, collision warning information is generated based on the depth of the water, the warning value signal, and the navigation speed, so that even if the navigation speed changes every moment, the warning is issued until the collision such as grounding occurs. Time can be obtained. Therefore, since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin regardless of a change in the traveling speed. Furthermore, by registering the relationship between the water depth, the alarm value signal, and the navigation speed as a data table in advance, even if the relationship between the relationship and the collision alert information is discontinuous, it is possible to deal with individual conditions. Thus, the collision warning information can be set, so that the warning notification timing can be set in detail.

The invention of claim 8 provides an indicator, an underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, and the navigation speed information of the own ship based on the rotation speed of the engine. Speed detecting means for obtaining, engine information detecting means for detecting engine information necessary for navigation, alarm signal generating means for transmitting an engine failure alarm signal indicating engine abnormality based on the engine information, The speed information and the engine failure alarm signal are displayed on the display. Thus, the navigation speed information of the ship can be easily obtained by using the engine speed, which is substantially proportional to the navigation speed, as the navigation speed information. Then, since the ship can be maneuvered while simultaneously viewing the navigation speed information and the depth information of the own ship obtained in this way, even if the navigation speed changes every moment, there is enough time before collision such as grounding occurs. be able to. Therefore, since a margin time for avoiding a collision can always be secured for a certain time or more, it is possible to always perform the avoidance measure with a margin regardless of a change in the traveling speed. Further, since the underwater information, the traveling speed information, and the engine failure warning signal are displayed on the display, there is an effect that the navigation safety can be more sufficiently improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a fish finder.

FIG. 2 is an explanatory diagram showing an arrangement state of a monitor.

FIG. 3 is an explanatory diagram showing a display screen in a fish finder mode.

FIG. 4 is an explanatory diagram showing a display screen in a fish finder mode.

FIG. 5 is an explanatory diagram showing a display screen in an engine monitor mode.

FIG. 6 is an explanatory diagram showing a display screen in an engine monitor mode.

FIG. 7 is a flowchart of a display processing routine.

FIG. 8 is a flowchart of an abnormality determination processing routine.

FIG. 9 is an explanatory diagram showing a display state of an engine monitor screen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Monitor 2 Transceiver 3 Display 4 Fish finder control unit 5 Signal converter 6 Engine 7 Engine sensor 8 Operation panel 11 Sea level line 12 Marker depth line 13 Fish school 14 Sea floor 15 Alarm mark 16-19 First to fourth display area 20 Water cutoff mark 21 Charging failure mark 22 Guideline

Continued on the front page (72) Inventor Tsuneaki Yamamoto 9-52, Ashihara-cho, Nishinomiya-shi, Hyogo Prefecture Furuno Electric Co., Ltd. (72) Inventor Tadashi Nakajima 1-32 Chaya-cho, Kita-ku, Osaka-shi, Osaka Yanmar Diesel stock In company

Claims (8)

[Claims] Display means for displaying various information on a screen, underwater exploration means for acquiring underwater fish finder information by transmitting and receiving ultrasonic signals, speed detection means for acquiring navigation speed information, said fish finder information and navigation Fish finder control which takes in speed information from the underwater exploration means and speed detection means and outputs it to the display means, and outputs stranded warning information to the display means based on the water depth and the alarm value in the fish finder information. And a fish finder. 2. The fish finder control means is capable of switching between a marker setting mode for fixing the alarm value and an automatic setting mode for increasing or decreasing the alarm value in accordance with a traveling speed. The fish finder according to 1. 3. The navigation system according to claim 1, wherein said speed detection means includes engine information acquisition means for acquiring engine information required for navigation, and uses an engine speed in said engine information as said navigation speed information. 1 or 2
Fish finder as described. 4. The fish finder control means is capable of outputting the engine information, a fish finder mode in which only the fish finder screen of the fish finder information is displayed on the display means, an engine monitor screen of the engine information, and 4. The fish finder according to claim 3, wherein the fish finder screen can be switched to an engine monitor mode in which a screen is displayed on the display means. 5. The fish finder controller according to claim 1, wherein the fish finder controller detects an engine failure based on the engine information, and outputs the engine failure information to the display unit. Fish finder as described. 6. An indicator, underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, speed detecting means for obtaining navigation speed information of own ship, and navigation speed information of own ship. An alarm value signal generating unit that generates an alarm value signal based on the following; a collision alarm information generating unit that generates collision alarm information based on the water bottom depth and the alarm value signal; and an alarm based on the collision alarm information. A fish finder, comprising: an alarm notifying unit that performs an alarm; and a display unit that displays at least the underwater information on the display. 7. An indicator, underwater exploration means for transmitting and receiving ultrasonic signals to obtain underwater information such as a fish or a water bottom, speed detecting means for obtaining navigation speed information of the ship, and generating an alarm value signal. Warning value signal generating means, collision warning information generating means for generating collision warning information based on the water depth, the warning value signal and the navigation speed, and warning notifying means for notifying a warning based on the collision warning information, A fish finder comprising a display for displaying the underwater information on the display. 8. An indicator, an underwater exploration means for transmitting and receiving an ultrasonic signal to obtain underwater information such as a fish or a water bottom, and a speed detecting means for obtaining navigation speed information of the own ship based on an engine speed. An engine information detecting means for detecting engine information necessary for navigation; an alarm signal generating means for transmitting an engine failure alarm signal indicating an engine abnormality based on the engine information; and the underwater information, traveling speed information and engine failure. A fish finder, wherein an alarm signal is displayed on the display.