JPH0614120B2 - Fishing ground display - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a fishing ground display device using wireless direction detecting means.

(Prior Art) Japanese Patent Laid-Open No. 54-106183 discloses a means for locating the position of a radio wave source by measuring the direction of arrival of one radio wave source from a plurality of points and obtaining the intersection of the direction lines of each direction of arrival. ing.

In addition, each position point obtained by measuring the position of the ship is sequentially stored, and the line connecting the position points is displayed as a track line.The track line and the detection images of the radar and scanning sonar are displayed. Japanese Patent Application Laid-Open No. 57-4508 discloses a means for displaying a target image and a school of fish image by radar by superimposing them on one screen.

By the way, the allocation of the communication frequency to the radio communication between the fishing boats is, for example, for a plurality of fishing boats belonging to one fishing company and extending to more than 10 boats, the frequencies for short-distance communication are 2 to waves and long-distance communication. The frequency for use is commonly given, such as 2 to 3 waves, and the fishing boats belonging to the fishery company share fishing information with each other to improve the fishing efficiency.
Or, by knowing their whereabouts, mutual rescue can be performed in case of an emergency such as a distress on a voyage.Therefore, between fishing vessels under such conditions, information such as the location of the fellow vessels and the fishing situation can be managed by the fishing manager. The correspondents take notes each time, and from these notes, judge the position and direction of the fishing ground that seems to be the best by experience and intuition.

Therefore, in order to rationalize this, it is possible to display the fishing ground relationship between a fellow ship and its own ship by combining the display of the location of a fellow ship using the former means with the display by the latter means. Conceivable.

(Problems to be Solved by the Invention) According to the combination display as described above, it is possible to display the situation such as a school of fish that the own ship grasps and the position of the fellow ship.

However, this is a valid display when your own ship has already reached the fishing ground, and if your own ship has not yet discovered the fishing ground, which direction will you take, the better fishing ground will be? It is impossible to consider at first sight whether or not the ship can be encountered, and we have to rely on the experience and intuition of the captain.

In such a case, since the fishing condition of the fellow ship can be known from the information on the communication radio waves of the fellow ship, the target fishing ground can be found based on this.

Therefore, there is a problem that it is expected to provide a device that can obtain a display suitable for such a search.

(Means for Solving the Problem) The present invention displays a plurality of position points obtained by measuring the position of the own ship on a display screen, and at each position point, the arrival direction of communication radio waves of another ship is displayed. A device that can display the position of another ship by displaying the direction obtained by measurement with a direction line starting from the above position point, in order to identify each of the above position points. Mark signal generating means for generating signals for displaying a plurality of marks as mark signals, position point mark means for displaying marks at each of the above-mentioned position points based on the above-mentioned mark signals, and each of the above-mentioned communication radio waves. Information, at least the manual registration means for manually registering and storing the code signal for displaying the fishing condition as registration data, and the mark by the position point mark means, separately from the mark signal described above. Based on this, each mark is displayed in one corner of the display screen (hereinafter referred to as "one corner mark display"), and each registered data is marked by a signal obtained by calling the above registered data corresponding to each mark in the one corner mark display. The above-mentioned problems can be solved by providing a registration data display means for displaying the items side by side.

(Example) Hereinafter, an example will be described with reference to the drawings.

In FIG. 1, the direction detecting means 1 is a communication radio wave A of a fellow ship.
Is a combination of a digital positioning type wireless direction finding circuit and a gyro azimuth repeater, and the measured angle obtained by converting the azimuth value of the measured radio wave to the true north reference by the gyro azimuth value is a digital value signal. Is output as the azimuth signal 1a.

The receiving means 2 detects the communication content of the communication radio wave A and measures the strength of the radio wave. For example, the digital value signal of the AGC voltage is used as the radio wave intensity signal 2a, and the communication content is voiced (Morse code sound). Is output as the audio signal 2b.

The receiving means 2 can also serve as the receiving circuit portion of the direction detecting means 1.

The positioning means 3 measures the position of the ship by the radio wave of the radio navigation system, that is, the navigation radio wave B. For example, the positioning means 3 is a positioning device using the radio waves of the satellite radio navigation system and the Loran C radio navigation system. The digital signal of latitude / longitude value is output as the positioning signal 3a.

The automatic means 17 uses the registration means 6 described later as the direction detection means 1
Is automatically performed in association with the determination of the operating conditions of, for example, a combination of a memory and a register,
A plurality of frequencies of radio waves to be detected by the direction detecting means 1 and the receiving means 2 are set in a memory, and these are sequentially taken out to a register to be received and detected while scanning, thereby detecting the direction of the direction 1.
Each time the azimuth signal 1a is detected from the automatic registration signal 17
Output a.

When the direction detecting means 1 and the receiving means 2 are of the synthesizer type and have a receiving frequency memory, this means can be configured by using the receiving means by the memory.

The clock means 4 measures the date and time, and is, for example, a combination of a clock pulse generating circuit, a frequency dividing circuit, a counting circuit, etc., and divides the clock pulse by a frequency dividing circuit to obtain a digital value in the counting circuit. The date and time of the operation are output as a clock signal 4a by a digital value signal.

The synthesizing means 5 receives the azimuth signal 1a, the radio wave intensity signal 2a, the positioning signal 3a, the clock signal 4a, and the registration data signal 16a, which will be described later, obtained by the registration signal 6a given as a latch signal from the registration means 6 described later. Is temporarily stored in a designated array, and is a register circuit, for example, which outputs the temporarily stored contents as a detection information signal 5a by a digital value signal.

Then, this temporary storage is updated for each registration signal 6a to the azimuth signal 1a, the radio wave intensity signal 2a, the positioning signal 3a, the clock signal 4a, and the registration data signal 16a obtained at that time.

This storage and update is performed by the clock means 4 regardless of the registration signal 6a.
Then, a pulse signal may be generated at regular time intervals (for example, every 10 seconds), and this pulse signal may be used, or manual registering means 18 described later may be used.

The registration means 6 temporarily stores the contents of a registration data signal 16a described later in the synthesizing means 5 by the manual registration signal 18a or the automatic registration signal 17a, and then controls the writing means 7 to store the detection information signal 5a. A write signal 6b for writing and storing in 8 is output, which is, for example, a combination of a register and a gate circuit. First, the registration data signal 1 is generated by the automatic registration signal 17a or the manual registration signal 18a.
6a is gated and passed, and a signal thereof, for example, a trailing edge signal of the gate pulse is output as a registration signal 6a which is configured as a latch signal, and subsequently, a target operation to the writing means 7 is performed. A write signal 6b for performing the above is output.

The write signal 6b may gate the trailing edge pulse signal of the registration signal 6a, or may use a pulse signal obtained when the latching operation of the synthesizing means 5 is completed.

The writing means 7 controls the storage means 8 to store the contents of the detection information signal 5a, and is, for example, a combination of an address counter and a code conversion circuit, and the address increases or decreases each time the registration signal 6a is received. , A signal designating the count value as a storage address of the storage means 8 is output as a storage position signal 7a.

In addition, a code signal (corresponding to a reproduction position signal 10b described below) required for selecting a corresponding one of the recording contents of the recording unit 14 described below to perform a reproducing operation is output as a recording position signal 7b.

The storage means 8 stores the content of the detection information signal 5a according to the designation of the storage position signal 7a, reads the stored content according to the designation of the read position signal 10a described later, and outputs it as the read information signal 8a, For example, it is a memory using a RAM (random access memory).

The calling means 9 outputs the read command signal 9a for calling the stored content corresponding to the designation of the later-described call data signal 16b from the stored content of the storage means 8. For example, a combination of a register and a gate circuit is provided. First, the calling data signal 16b is put into the register, and then the manual calling signal 19a or the automatic calling signal 17b is used as a gate signal to sequentially output the contents of the register as the read command signal 9a.

Since the read-out means 10 is provided to the display conversion means 11 with only the data related to the data designated by the call data signal 16b among the stored contents of the storage means 8, the read-out of the contents of the storage means 8 is carried out by the read-out position signal 10a. The content stored by the detection information signal 5a including the data of the registration data signal 16a given by the read command signal 9a is selected from the information signals 8a and output as the read display signal 10c. For example, a register,
It is a combination of an address counter, a comparator, a gate circuit, etc., and stores the contents of the read command signal 9a in a register, and the address counter is self-running to increase / decrease the storage means 8.
The read information signal 8a obtained by sequentially reading the contents of the above is compared with the data of the calling data signal 16b in the register by the comparator, the read information signal 8a including the matched data is detected, and this is gated by the gate circuit. Is output as a read display signal 10c.

The display conversion means 11 converts the read display signal 10c and the mark control signal 20a, which will be described later, into patterns of figures and characters and temporarily stores them, and synchronizes the stored contents with the display scan of the display means 12 by the read synchronization signal 13a. The read signal is output as the display signal 11a, which is, for example, a combination of a register, a microprocessor, a memory, a write / read address counter, a character generator, etc., and the contents of the display signal 11a are put into the register. A calculation for extracting the latitude / longitude value given by the positioning signal 3a from the inside and converting it into screen coordinate values to be displayed as the positioning points P1 to P6 on the display pattern of the display means 12 as shown in FIG. , The azimuth value θ given by the azimuth signal 1a from the register and the radio field intensity signal 2
The intensity value S given by a is taken out, and the line segment that extends in the direction of the azimuth value θ starting from each of the positioning points P1 to P6 and is proportional to the intensity value S is displayed as the direction lines S1 to S6. The calculation for converting into the screen coordinate value for the purpose is performed by the microprocessor, and each screen coordinate value is stored in the memory.

That is, conversion is performed to display the lengths of the azimuth lines S1 to S6 to the length corresponding to the intensity value S.

Also, in order from the earliest date / time given by the register by the character generator, ▲ 1 ▲ 2 ▲
An event number mark such as 3 is added, and the mark and the content of the detection information signal 5a corresponding to the mark are converted into screen coordinate values for displaying a list as a character graphic in one corner on the display pattern. And store it in memory.

Then, the read address signal of the memory is increased or decreased by the read synchronizing signal 13a to read the stored contents and output as the display signal 11a.

Also, a code signal for color-coding each data is generated as needed.

The display unit 12 is of a television monitor type which is scanned by a display scanning signal 13b described below and displays the content given by the display signal 11a in a nautical chart display pattern in which the vertical axis is latitude and the horizontal axis is longitude. CRT display by raster scanning or pen-writing X / Y plot recording is performed, and is, for example, a color display type television monitor, and the display conversion means 11 is used.
And the display described by the mark means 20 described later are performed.

The display scanning means 13 generates a read synchronization signal 13a and a display scanning signal 13b for synchronizing the display scanning of the display means 12 and the output time of each content of the display signal 11a, and is, for example, a frequency dividing circuit. It is a combination of a sawtooth wave generation circuit, etc., and divides a clock pulse by a frequency divider circuit to create horizontal and vertical scanning periods for raster scanning, and thereby a sawtooth wave for raster scanning and a display signal 11a. , The output signal of the frequency dividing circuit is output as the read synchronizing signal 13a, and the sawtooth wave signal is output as the display scanning signal 13b.

The display scanning means 13 generally corresponds to a scanning circuit incorporated in the television monitor of the display means 12.

The recording means 14 records the audio signal 2b by attaching the recording position signal 7b to the audio signal 2b, and the reproduction position signal 10b outputs the code signal of the recording position signal 7b and the reproduction position signal 10b. A coincident one is read out, reproduced, and outputted as a reproduced signal 14a, which is, for example, a tape recorder with a search circuit, and a recording position signal 7b.
Playback position signal 1 as the search code signal when recording
A signal obtained by retrieving and calling by 0b and reproducing the recorded contents of the portion is output as a reproduction signal 14a.

The sound emitting means 15 converts the reproduced signal 14a into sound and outputs the sound.
For example, a speaker.

The sound emitting means 15 can generally utilize a speaker incorporated in the tape recorder of the recording means 14.

The data input means 16 stores the information of the communication radio wave A from which the azimuth signal 1a is obtained as a detection information signal 5a by coding data that is easy to classify from the viewpoint of the purpose of detecting the fishing ground as the detection information signal 5a. 8 to read and display only the intended one by the code when necessary.
Inputting data to be displayed on 2, for example, a combination of a keyboard, a code conversion circuit, a character display circuit by LED or LCD, a gate circuit, etc., which is used for inputting distinction between registration / call and data by a keyboard, The input data is latched and displayed in the character display circuit, and a signal obtained by converting this data into a code signal by the code conversion circuit is gated by the gate circuit according to the distinction between registration and calling, and the registration data signal 16 or calling data is displayed. The signal 16b is output.

As the registration data, for example, as shown in FIG. 3, fishing species, fishing conditions, other ship names (abbreviations), etc. are used, and part or all of the registration data is used as the calling code.

In addition, the fishing type and fishing condition of the own ship can be similarly stored in the storage means 8.

The manual registration means 18 selectively and manually operates the registration means 6 each time when any one of the communication radio waves A is selected and the contents based on the selection are stored in the storage means 8. For example, a combination of a flip-flop circuit and a gate circuit. By operating the keyboard as shown in FIG. 3 to switch the gate which gives a signal to the registration means 6 by the shift of the flip-flop circuit, the automatic registration signal 17a One of the manual registration signals 18a is selected so as to be supplied to the registration means 6, and a clock pulse is gated by another gate circuit every time registration is performed, and is output as the manual registration signal 18a.

When the manual calling means 19 selects any one of the detection information signals 5a stored in the storage means 8 and displays it on the display means 12, or when reproducing the corresponding one from the recording means 14. Each time, the calling means 9 is selectively operated manually. For example, it is a combination of circuits similar to the manual registration means 18, and switching of signals from the automatic means 17 and the manual calling means 19 to the calling means 9. The
Each time a call is made, the clock pulse is gated and the means call signal 19a is output as.

The mark means 20 gives a mark control signal 20a for displaying a moving cursor mark for indicating a specific position of a display image being displayed and a fixed mark to the display converting means 11, and for example, a gate circuit, a counter, It is a combination of a register, a comparator, a mark generator, etc., a clock pulse is gated by a gate circuit to increase / decrease the counter, the count value is registered in the register, and the count value and the memory address counter in the display conversion means 11 are registered. The comparator detects the coincidence with the address value of, and stores the signal of the fixed mark such as the event mark at the address of the memory, and the signal of the moving mark such as the moving mark and cursor line mark is the display signal 11.
The mark control signal 20 is a signal for superimposing and outputting to a.
Output as a.

The operating portion of the mark means 20 can be combined with the operating portion of the data means 16 as shown in FIG.

Further, the mark generator can share the character generator in the display conversion means 11.

The erasing means 21 is for erasing the detection information signal 5a stored in the storage means 8 or the content such as the fishing condition of the own ship which corresponds to the data code designated by the data means 16. Is caused by
For example, it is a combination of a gate circuit, a register, etc., and a signal of a level for making the memory of the memory means 8 "0" is gated and put in the register, and this signal is given to the register means 6, whereby the corresponding number of "0" is given. Is output as a memory erase signal 6c.

(Variations of the Invention) The following variations of the present invention are possible.

(1) Depending on the content of the data input to the data means 16,
For example, a signal for color-coding is stored in the storage means 8 such that the information of the communication radio wave A of the large fishing boat is red, the information of the communication radio wave A of the medium fishing boat is yellow, the information of the communication radio wave A of the small fishing boat is green, and the like. Then, the direction lines S1 to S6 and the display data are displayed in different colors to make it easier to judge the large fishing area, medium fishing area, and small fishing area.

(2) The direction detecting means 1 and the receiving means 2 are combined.

(3) The memory in the display conversion means 11 and the memory in the storage means 8 are combined.

(4) The microprocessor in the display conversion means 11 is provided with a calculation function of unilaterally extending the direction lines S1 to S6 and a proportional calculation function of the transmission output of the communication radio wave A from the transmitter.

(5) The intersection group of the direction lines S1 to S6, that is, the large fishing area V is calculated by the microprocessor in the display conversion means 11, and the instruction mark W is displayed as shown in FIG.

(6) The line U connecting the measurement points P1 to P6 is displayed on the display converting means 1
It is calculated by the microprocessor in 1 and this line is displayed as the ship track line.

(7) The direction signal 1a is not converted into the gyro direction value in the direction detection means 1 to the true north reference, and the current direction value and the gyro direction value are stored as the detection information signal 5a in the storage means 8 as they are, and the display conversion means is used. Convert to true north standard by the microprocessor in 11.

(8) A line connecting the positioning points P1 to P6 is calculated by the microprocessor in the display conversion means 11 and displayed as the ship's trajectory line U as shown in FIG.

(9) The character display circuit is not provided in the data means 16, and its display signal is given to the mark means 20 or the display conversion means 11 and displayed in one corner of the display screen of the display means 12.

(10) It is possible to knit a method in which only a particularly required portion is taken out from the block configuration of FIG. 1 and reduced in configuration.

(Effect of the Invention) According to the present invention, the automatic means 17 is selected from the communication radio waves A.
With respect to those designated by the data means 16 or the manual registration means 18 and the data means 16, the display means 12 displays the positioning points P1 to P6 and the direction lines S1 to S6 as shown in FIG.
6 is displayed, and by reading the data in the sea area V in which a relatively large number of these direction lines cross-concentrate and the positioning points P2, P3, and P5 related thereto from the list display M, it is easy to make the sea area V near a large fishing ground. You will be able to judge.

In addition, the communication radio wave A is set as a communication radio wave from a plurality of fellow ships as much as possible so as to obtain a plurality of fishing conditions and directions of the fishing conditions, thereby determining a sea area in which a plurality of fellow ships are heavily caught as a more suitable fishing ground. It has features such as being able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a fishing ground display device according to an embodiment of the present invention, FIG. 2 is a diagram showing an example of a display screen according to the above-mentioned embodiment, and FIG. 3 is a diagram showing an example of a configuration of an operation unit. Is. 1: Direction detecting means, 2: Receiving means 3: Positioning means, 4: Clocking means 5, Synthesizing means, 6: Registering means, 7: Writing means, 8: Storage means, 9: Calling means, 10: Reading means 11: Display Conversion means, 12: Display means, 13: Display scanning means, 14: Recording means, 15: Sound emitting means, 16: Data means, 17: Automatic means, 18: Manual registration means, 19: Means calling means, 20: Marking means, 21: Erase means

Claims (2)

[Claims] 1. A direction obtained by displaying a plurality of position points obtained by measuring the position of the own ship on a display screen and measuring the arrival directions of communication radio waves of other ships at each of the position points. Is displayed by a directional line starting from the position point as a starting point, thereby displaying the existing position of another ship, comprising: a. Mark signal generating means for generating as a mark signal a signal for displaying a plurality of marks for identifying each of the position points; b. Position point mark means for displaying each mark at each position point based on the mark signal; c. Display conversion means for converting the length of the directional line to a length corresponding to the reception intensity based on the reception intensity of the communication radio wave of the other ship; and d. For each of the communication radio wave information, at least a manual registration means for manually registering and storing a code signal for displaying a fishing condition as registration data, e. Separately from the mark by the position point mark means, each mark is displayed in one corner of the display screen based on the mark signal (hereinafter, referred to as one-corner mark display), and each mark of the one-corner mark display is displayed. And a registration data display means for displaying a list of each of the registration data side by side with each of the one corner marks by a signal obtained by calling the corresponding registration data. 2. A direction obtained by displaying a plurality of position points obtained by measuring the position of the own ship on a display screen and measuring the arrival direction of communication radio waves of another ship at each of the position points. Is displayed by a directional line starting from the position point as a starting point, thereby displaying the existing position of another ship, comprising: a. Mark signal generating means for generating as a mark signal a signal for displaying a plurality of marks for identifying each of the position points; b. Position point mark means for displaying each mark at each position point based on the mark signal; c. Display conversion means for converting the length of the directional line to a length corresponding to the reception intensity based on the reception intensity of the communication radio wave of the other ship; and d. For each of the communication radio wave information, at least a manual registration means for manually registering and storing a code signal for displaying a fishing condition as registration data, e. Separately from the mark by the position point mark means, each mark is displayed in one corner of the display screen based on the mark signal (hereinafter, referred to as one-corner mark display), and each mark of the one-corner mark display is displayed. Registration data display means for displaying a list of each of the registration data side by side with each of the one corner marks by a signal obtained by calling the corresponding registration data; f. A sounding / reproducing means for registering a voice signal included in the communication radio wave with the identifier of the position point added and reproducing in response to a reproduction command including the identifier of the position point. Display device.