KR100601922B1 - A fish-finder device using the personal portable display terminal - Google Patents

Abstract

The present invention attaches an ultrasonic transceiver and a digital signal processing unit to a personal portable terminal that is commonly used in everyday life, and displays a video on the LCD screen of a personal portable terminal (mobile phone, PDA, etc.) in real time. The present invention relates to a device for detecting a distribution state of fishing fish family. More specifically, an ultrasonic transceiver for generating and receiving ultrasonic waves by receiving power from a power terminal of a personal portable terminal, and converting a signal reflected from a subject received by the ultrasonic receiver into an electrical signal and converting the converted electrical signal. A signal processing unit for amplifying and filtering signals using an amplifier, and a digital signal for converting an analog signal from which the noise is removed into a digital signal in the order of input and processing the same as a program to convert a signal received from the subject into an image signal of the subject. A portable terminal equipped with a signal processor, a connection jack having a signal transmission line for transmitting an image signal of the subject processed by the digital signal processor to the personal portable terminal, and a video signal of the subject obtained by the digital signal processor through the connection jack. On the display panel The present invention relates to an implementation of a system for displaying a video on the terminal in real time by continuously transmitting in a random unit. The present invention is characterized in that the device is small and easy to operate and inexpensively configured to inform the real-time screen of the distribution of the fish family in the fish to those who are fishing as a hobby or those engaged in fishing as a living.

Personal handset, fish finder, piezoceramic, signal modulation.

Description

A fish-finder device using the personal portable display terminal

1 is a block diagram of a fish detection device using a personal portable terminal.

2 is an internal configuration diagram of a signal modulator.

3 is a burst signal according to the present invention (period can be varied).

1: Personal cell phone terminal 2: Jack for signal line connection

3: signal processor 4: signal line

5: ultrasonic sensor

11: Transducer 12: T / R (Transmit / Receive) Switch

13: Preamplifier 14: Detector (Receive Signal)

                                  Strength Indicator-> RSSI)

15: A / D Converter 16: Micro-processor

                                  ; DSP)

17: Digital Video Converter

18: Personal handheld terminal (mobile phone, PDA)

19: Auxiliary Power (Battery)

20: Power Amplifier 21: DC / DC Converter

21: analog signal processing unit

The present invention attaches an ultrasonic transceiver and a digital signal processing unit to a personal portable terminal (mobile phone, PDA) that is commonly used in everyday life, and detects the distribution of fish species underwater and displays a video on the LCD screen of the terminal in real time. The present invention relates to an implementation of a device for detecting a distribution state of fishing fish family.

In the related art, it is common to use ultrasonic waves using piezoelectric ceramics to acquire underwater images, and equipment for converting the distribution of fish species in the water into video signals using ultrasonic transceivers using piezoelectric ceramics is commercially used. Existing products from all over the world, including the US and Japan, are not only provided for ship mounting or relatively large fish finders, but they are also limited to ships that are fished for live fishing due to their relatively high price. There is a problem that fishing hobbyists who use fishing as a hobby could not easily carry or equip them.

The technical problem to be achieved by the present invention is to recognize the problems of the prior art as described above, the ultrasonic generator emits ultrasonic waves to the subject underwater and the ultrasonic waves reflected back from the subject using a piezoceramic sensor to receive the received analog signal Through the digital signal processor which performs amplification, signal gain conversion, and signal shape conversion, and a socket (jack) connected to the personal portable terminal, the video signals of fish and objects of underwater speed are transmitted on a personal portable terminal in real time by frame unit. By displaying signals in real time on a display panel (liquid crystal screen), it is aimed to achieve miniaturization, generalization, and inexpensiveness so that fish detection and underwater subject detection systems can be easily carried while needed.

The present invention attaches an ultrasonic transceiver and a digital signal processor to a personal portable terminal (mobile phone, PDA, etc.) that is commonly used in everyday life, and displays a distribution state of underwater fishes in real time as a video on the LCD screen of the terminal. And an implementation of a device for detecting distribution of fish stocks. More specifically, looking at the configuration means according to the present invention, all the power is made by the power mounted on the personal portable terminal, the ultrasonic transceiver 5 with a built-in piezoelectric ceramic to the ultrasonic wave generated by the oscillation circuit underwater Ultrasonic radiation emitted (ultrasound transmitter), underwater radiation is reflected by the underwater subject and detected by an ultrasonic receiver (ultrasound sensor 5) with a piezoceramic built-in, and the detected analog electrical signal is very weak. Amplified by the amplifier, the noise is removed from the amplified signal and converted into a digital signal. By using the converted digital signal, the image signal of the fish group or object in the water is processed in units of frames and stored in the memory of the digital signal processor. The video signal stored in the memory of the signal processing unit is transmitted to the memory of the personal portable terminal temporarily through a jack (socket) having a signal transmission line for transmitting the signal to the personal portable terminal. It is transmitted to a display panel of a personal portable terminal to display an image of a subject in the water on a display panel in real time. Looking at the signal processing means processed by the signal processing unit in more detail, by radiating the ultrasonic wave through the ultrasonic transmitter to continuously scan the subject (fish or object) in the underwater, the ultrasonic wave emitted from the ultrasonic transmitter scans the subject inside the underwater If a fish or an object meets and is reflected, the piezoceramic sensor's built-in ultrasonic receiver detects the reflected ultrasonic signal and the detected signal is so weak that it is amplified by a signal amplifier and the noise contained in the amplified signal To get a noise-free analog signal. As described above, a circuit for amplifying an analog video signal of an underwater subject detected by an ultrasonic receiver, removing noise, and processing the analog video signal into an intact analog video signal is an analog signal processor in the present invention. The analog image signal processed by the analog signal processor is converted into a digital signal through an analog to digital (A / D) converter, and the digital signal is processed by the image processing program using the converted digital signal. The video signal of the subject is stored in the memory in units of frames. The video signals processed as described above by the digital signal processor are transmitted to the terminal in frame units through a jack (socket) having a video signal transmission line connected from the digital signal processor to the personal portable terminal. It is transmitted to the liquid crystal display (LCD) display panel of the terminal in units of frames via an internal memory to display the movement of the underwater subject in the real time on the display panel of the terminal. Communication between the digital signal processing unit and the personal portable terminal that modulates and processes the signal is software-processed by a program using a known / common communication protocol.

In order to have the above functions, an operation button is provided on a personal portable terminal to receive an image signal of an underwater fish group and an object and to display it on the display panel of the personal portable terminal. The same button used on the existing personal portable terminal can be used as it is. For example, buttons used to store a video required while accepting an Internet video, and to return to a scene where the user wants to check again can be displayed on the display panel. In order to show it, you may use with the same structural means.

Based on the above description, the analog and digital signal processing according to the present invention is illustrated in FIG. 2, and in more detail through the block diagram shown in FIG. 2, the pre-amplifier is an ultrasonic wave. Since the analog signal inputted from the transmitter and receiver is very weak, it cannot be used as an input signal of the main amplifier. Therefore, the amplifier is used to amplify the output to an appropriate level. The power amplifier is a transmit signal sent from the processor. Amplifies the power (current amplification) of the PWM. The TR switch (Transmit / Receive Switch) serves to block the signal inflow to the receiving circuit in the case of ultrasonic transmission (transmission) so as not to damage the ultrasonic receiver by the powerful ultrasonic transmission pulse. The DC / DC converter (5V to 15V) boosts 15V using a Boost Regulator (CS5173) chip. Detector (Receive Signal Strength Indicator-> RSSI) is called Receive Strength or Electric Field Receive Strength Detector, and it is used to detect received signal amplification and amplitude, and to detect square wave signal similar to Burst signal in processor. Make it. The A / D converter converts analog signals into digital signals. The microprocessor (DSP) bursts a signal (Signal Frequency-200KHz, Pulse Length-0.1ms, Period Transmit-more than 300ms) generated as a transmission signal (PWM) through the port. The signal input to the microprocessor through the A / D converter converts the digital signal processed by the digital video converter into a digital video signal after processing the digital signal in the processor (DSP) and converts the converted digital video signal into a transmission jack (socket). Through the memory of the mobile phone is output as an image on the liquid crystal display panel. A digital video converter takes a digital signal and converts it into a digital video signal. Battery is used when the phone is running out of power. The mobile phone displays a signal converted into a digital video signal by the digital video converter on the LCD display panel of the mobile phone through a mobile phone jack (socket). In FIG. 2, the tangent portion is an analog signal processor. 3 is different from the period of the ultrasonic transmission by varying the period of the burst signal to obtain an image of the subject of the desired position (distance). Looking at the signal processing flow of the present invention based on the role of each of the hardware, by transmitting the signal generated as the transmission signal PWM from the central processing unit (DSP) for processing the digital signal to a power amplifier (power of the signal ( Current) and the signal amplified by the power amplifier flows into the reception signal circuit at the moment of transmission of the transmission signal so that the receiver is not damaged by the transmission signal (PWM) amplified by the TR switch (Transmit / Receive Switch). To block the circuit of the receiver, and the signal passing through the TR switch transmits the ultrasonic signal underwater through the sensor, and the ultrasonic signal reflected back from the subject is received by the ultrasonic receiver. . Since the signal received by the ultrasonic receiver is very weak and cannot be used as an input signal of the main amplifier, the signal is amplified by the preamplifier to amplify to an appropriate level, and the noise is filtered by using a filter to remove noise in the signal. Will be removed. The noise-free signal is transmitted to the electric field strength detection circuit, and the analog signal passed through the electric field strength detection circuit is converted into a digital signal by the A / D converter, and an echo signal is input to the central signal processing unit, which is a digital signal processing unit. do. The input digital signal (sampling signal) is stored in the memory of the digital signal processor through signal processing of the digital signal processor. The value stored in the memory is converted into a digital video signal through a digital video converter, and the converted digital video signal is displayed as a real time video on the LCD display panel of the mobile phone via a connection jack and a memory inside the mobile phone.

In the present invention, since personal portable communication equipment is rapidly spreading at home and abroad, the portable portable terminal display screen of the device provides real-time video of the distribution of objects and fish species in the water, and is engaged in fishing work by leisure or living. By implementing a device that is easier and simpler to operate, relatively small in size, and economically not burdensome, the effect is that it can be easily carried by those who need it. In addition, the present invention is expected to have a great effect of creating a new terminal demand for individual portable terminal holders who do not have such a function to capture underwater video cameras or watch videos or domestic and overseas fishing workers who need it. do.

Claims (1)

In the fish detection device using a personal portable terminal, An ultrasonic transmitter with a piezoceramic to emit ultrasonic waves underwater to acquire an underwater image, An ultrasonic receiver having a built-in piezoceramic and installed adjacent to the ultrasonic transmitter to receive ultrasonic signals reflected from an object present in the ultrasonic wave emitted from the ultrasonic transmitter; A TR switch for blocking signal inflow into a receiving circuit to prevent damage to the ultrasonic receiver when pulsed ultrasonic waves are transmitted from the ultrasonic transmitter; A preamplifier for amplifying the analog signal received by the ultrasonic receiver; A noise removing filter for removing noise included in the analog signal amplified by the preamplifier; An A / D converter converting an analog signal from which noise is removed through the noise removing filter into a digital signal; A digital video converter converting the converted digital signal into an underwater digital video signal; Means for varying the transmission period of the ultrasonic transmitter to acquire images of subjects at different positions; A socket for transmitting the converted digital video signal to a mobile phone; Fish detection device using a personal portable terminal consisting of a display panel of the mobile phone for displaying the digital underwater video signal transmitted through the socket via the memory of the mobile phone.

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