JPS62146978U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a block diagram showing the entirety of the fish detector according to this invention, Figure 2 is a diagram showing part of its operation panel, and Figure 3 shows the generation of the scanning signal of the display and the generation of various markers. Figure 4 is a diagram showing the display screen of the display, Figure 5 is a block diagram showing an example of the timing generator, bottom detector, buffer memory, and read/write control section, and Figure 6 is an example of the indication on the display screen. Figure 7 is an operation flowchart for changing the moving speed of the moving marker in the enlarged part, Figure 8 is a diagram showing an example of the composite part of the character code generation signal and the output of the image memory, and Figure 9 is A diagram showing another example of the display state of the display screen, FIG. 10 is a diagram showing an example of buffer memory storage control when slowing down the feed speed from the buffer memory, and FIG. 11 is a diagram showing the GPU
It is an operation flowchart. 11: Operation panel, 12: CPU, 33: Program memory, 34: Readable/writable memory, 3
5: Input/output port, 36: Data bus, 37: Address bus, 38: Control bus, 39: Timing generator, 41: Transmitter, 42: Transmission/reception switch, 43
: Transducer/receiver, 44: Receiver, 45: AD converter,
46: Buffer memory, 47: Image memory, 51
: Raster scanning display, 52: Synthesizing circuit, 48: Sub-scanning address generator, 49: Synchronizing signal generator, 9
8: Address counter, 125: Buffer memory, data capture end signal generation terminal, 129, 18
5: Address switching circuit, 130: Transmission cycle end signal terminal, 131: Depth counter, 149: Depth detection output terminal, 184: Character code memory, 186
: Character pattern generator, 198: Seabed detection section, 1
99: Basic pulse generator.

Claims (1)

[Scope of utility model registration request] an image memory that stores fish detection signals and can read them directly without going through a central processing unit;
A signal read out from the image memory is supplied,
A raster operation display that displays this as an image,
Generates a main scanning address corresponding to the main scanning position in synchronization with the main scanning of the raster operation display,
A main scanning address generator supplies the main scanning address as a lower address to the image memory, and generates a scanning address corresponding to the sub-scanning position in synchronization with the sub-scanning of the raster scanning display, and transfers the address to the above-mentioned image memory. A sub-scanning address generator that supplies upper addresses to the image memory, an operation panel that sets various operation modes, and a transmission pulse and reception sampling based on the transmission interval, reception sample interval, and reception start point given by the central processing unit. A timing generator that generates a pulse and a signal indicating the end of a transmission interval, a buffer memory into which a detection signal obtained based on the transmission pulse is taken from the signal sampling pulse, and a buffer memory into which the necessary detection signal is taken. a write address register for storing the contents of the sub-scan address generator at a predetermined position of the raster scan on the raster scan display; Means and means for relatively shifting the phase relationship between the generation of the address of the sub-scanning address generator and the sub-scanning of the raster scanning display by a predetermined value when transferring to the image memory, and reading and decoding a program. By reading the setting information on the operation panel, calculating operating parameters such as the transmission interval, reception sample interval, and reception start point, and adjusting the transmission interval and reception sample interval when a signal indicating the end of the transmission interval is generated. and the central processing unit that sets a reception start point in the timing generator and transfers the contents of the buffer memory to a location specified by the address of the write address register of the image memory when the capture end signal is generated. Equipped with a fish detector.