CN1193324C - Deep sea contactless signal bidirectional transmitter - Google Patents

Abstract

The deep-sea non-contact signal bidirectional transmission device of the present invention comprises a probe, a computer arranged in the submersible, a coil, an iron core coil, a first FM modem and a second FM modem, the coil is loosely fitted outside the iron core coil, and the second The input/output port of an FM modem is connected to the coil, the output/input port of the first FM modem is connected to the probe, the input/output port of the second FM modem is connected to the core coil, and the output/input port of the second FM modem is connected to the The computer is connected. Since the signal transmission of this device is completed through the coupling of two coils that are axially sleeved and radially non-contact, non-contact signal transmission can be realized between the deep submersible and the probe, avoiding the entanglement of the probe with the seabed objects A critical situation that restricts the movement of a deep submersible. The device also has the characteristics of short signal transmission distance, low power consumption and high voltage resistance.

Description

Deep sea non-contact signal two-way transmission device

Technical field

The invention relates to a signal transmission device of a deep sea submersible.

Background technique

In order to better investigate the resources and environment at the bottom of the ocean, manned deep submersibles are often used. Due to the complex environment at the bottom of the ocean, if cables are directly connected to the deep submersible, sensors and other controlled equipment, the sensor and other controlled equipment will be entangled or stuck on the reef, which will bring danger to the deep submersible. At present, in marine communication, some media such as sound, light, and electromagnetic waves are used to transmit signals. However, there are problems of high power consumption and low withstand voltage.

Contents of Invention

The purpose of the present invention is to provide a safe and reliable deep sea non-contact signal bidirectional transmission device.

The deep-sea non-contact signal bidirectional transmission device of the present invention comprises a probe, a computer arranged in the deep submersible, a coil, an iron core coil, a first FM modem and a second FM modem, the coil is loosely fitted and sleeved outside the iron core coil, and the second The input/output port of an FM modem is connected to the coil, the output/input port of the first FM modem is connected to the probe, the input/output port of the second FM modem is connected to the core coil, and the output/input port of the second FM modem is connected to the The computer is connected.

The above-mentioned probe can be a sensor, a detector or a controlled device.

When working, the detection signal sent by the probe is modulated into a frequency shift keying signal in the first FM modem, and the signal is transmitted to the second FM modem through coil group coupling for demodulation, and then transmitted to the deep submersible. computer. The digital control signal sent from the computer in the deep submersible is modulated into a frequency shift keying signal in the second FM modem, and the signal is transmitted to the first FM modem through coil group coupling for demodulation, and then transmitted to the probe.

Since the signal transmission of this device is completed by the coupling of two coils that are axially sleeved and radially non-contact, non-contact signal transmission can be realized between the deep submersible and the probe, avoiding the entanglement between the probe and the seabed object A critical situation that restricts the movement of a deep submersible. The device also has the characteristics of short signal transmission distance, low power consumption and high voltage resistance.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Detailed ways

With reference to Fig. 1, deep-sea non-contact signal two-way transmission device of the present invention comprises probe 1, coil 3, iron core coil 4, the first FM modem 2, the second FM modem 5 and the computer 6 that is located in deep submersible, coil 3 is loosely fit and sleeved outside the core coil 4, the input/output port of the first FM modem 2 is connected to the coil 3, the output/input port of the first FM modem 2 is connected to the probe 1; the input/output port of the second FM modem 5 The port is connected with the core coil 4, and the output/input port of the second FM modem 5 is connected with the computer 6.

When the probe is a sensor or detector, the input port of the first FM modem 2 is connected to the probe, the output port is connected to the coil 3, and the input port of the second FM modem 5 is connected to the core coil 4, and the output port is connected to the computer 6 connected. When the probe is the controlled device, the input port of the second FM modem 5 is connected to the computer 6, the output port is connected to the core coil 4, and the input port of the first FM modem 2 is connected to the coil 3, and the output port is connected to the probe 1 connected.

In order to adapt to the seabed high-voltage environment and prevent seawater corrosion, the circuits of the first FM modem 2 and the probe 1 are usually integrated and packaged in a pressure-resistant housing, or they can also be placed in a pressure-resistant housing separately and connected through a serial cable.

The above-mentioned first and second FM modems can be general FM modems. Since the conduction current aroused when the electromagnetic wave propagates in seawater will cause the energy of the electromagnetic wave to attenuate sharply, the higher the frequency, the faster the attenuation. Usually, the modulation links in the first and second FM modems can be adopted with lower carrier frequencies. Chip XR2206, the chip XR2211 with a lower carrier frequency is used in the demodulation link to minimize the carrier frequency and ensure the signal transmission quality of the device.

Claims (4)

1. Deep-sea non-contact signal two-way transmission device, comprising a probe (1), a computer (6) located in the submersible, characterized in that it also includes a coil (3), an iron core coil (4), a first FM modem (2) and the second FM modem (5), the coil (3) is coaxially sleeved outside the core coil (4) and separated from each other, and the input/output port of the first FM modem (2) is connected to the coil (3) , the output/input port of the first FM modem (2) is connected to the probe (1), the input/output port of the second FM modem (5) is connected to the core coil (4), and the output of the second FM modem (5) The /input port is connected with the computer (6). 2. The deep-sea non-contact signal two-way transmission device according to claim 1, characterized in that the circuits of the first FM modem (2) and the probe (1) are integrated and packaged in a pressure-resistant housing or placed in a pressure-resistant housing respectively . 3. The deep sea non-contact signal bidirectional transmission device according to claim 1 or 2, characterized in that said probe (1) is a sensor, detector or controlled device. 4. The deep-sea non-contact two-way signal transmission device according to claim 1, characterized in that the modulation link of the first and second FM modems adopts the chip XR2206, and the demodulation link uses the chip XR2211.