CN215773128U - Ultra-low power consumption underwater acoustic communication node - Google Patents

Ultra-low power consumption underwater acoustic communication node Download PDF

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Publication number
CN215773128U
CN215773128U CN202121406598.6U CN202121406598U CN215773128U CN 215773128 U CN215773128 U CN 215773128U CN 202121406598 U CN202121406598 U CN 202121406598U CN 215773128 U CN215773128 U CN 215773128U
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circuit
power consumption
underwater acoustic
duty
ultra
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倪秀辉
袁幸杰
巩小东
郑轶
孟雍祥
冯向超
王亚洲
李新娟
王芳
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Institute of Oceanographic Instrumentation Shandong Academy of Sciences
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Institute of Oceanographic Instrumentation Shandong Academy of Sciences
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The utility model discloses an ultra-low power consumption underwater acoustic communication node, which comprises an underwater acoustic transducer, a main control circuit used for finishing signal acquisition, signal processing, communication and control, a power amplification circuit used for amplifying and sending related signals and an on-duty circuit used for monitoring communication information in water to enable a system to be quickly powered on and enter a normal working state, wherein the on-duty circuit is internally provided with a clock circuit, an on-duty awakening circuit, an on-duty amplification circuit, a digital power supply circuit, an analog acquisition power supply circuit, a 3-axis acceleration sensor circuit, a communication circuit, an ADC (analog to digital converter) acquisition circuit, an external RAM (random access memory), a storage circuit and a signal modulation circuit. The utility model has the advantages that the volume of the underwater acoustic communication node is small, the weight is light, the use is more flexible, the high-performance processing unit integrates the functions of signal processing, control and the like into a whole through the modularized circuit and the low-power-consumption design, the operation efficiency is improved, the overall power consumption of the system is reduced, and the miniaturization of the system is favorably realized.

Description

Ultra-low power consumption underwater acoustic communication node
Technical Field
The utility model relates to the technical field of underwater acoustic communication, in particular to an ultra-low power consumption underwater acoustic communication node.
Background
In the currently known form of energy radiation, sound waves are the best carrier for underwater wireless communication. Therefore, underwater acoustic communication also becomes the main technical means for wireless information transmission in the ocean. The method is widely applied to the aspects of marine environment monitoring, underwater vehicle/manned submersible vehicle operation and the like.
The underwater acoustic channel is one of the most complex channels in all communication channels, and the characteristics of fading, multipath effect, time variation and the like make many classical communication techniques not directly applicable to the underwater acoustic channel. Therefore, in order to ensure the success rate of communication, the signal processing unit of the early underwater acoustic communication machine has a low operation speed, and needs the DSP and the FPGA to be matched as the signal processing unit to monitor and process the underwater acoustic signals, and then the main control chip monitors and transmits information, so that the operation time is long, and the power consumption is high. And most underwater equipment is powered by batteries, so that the equipment is not convenient to miniaturize, and the underwater acoustic communication equipment with low power consumption and stable performance has important significance.
With the advent of microprocessors and new signal processors, the implementation of many signal processing methods that require a large number of operations has become possible. With the signal on-duty circuit, the power consumption of the system can be greatly reduced. The existing underwater acoustic communication node has the defects of large volume, poor operation flexibility, low reliability and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an underwater acoustic communication node with ultra-low power consumption, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
an ultra-low power consumption underwater acoustic communication node comprises an underwater acoustic transducer, a main control circuit used for completing signal acquisition, signal processing, communication and control, a power amplification circuit used for amplifying and sending related signals and an on-duty circuit used for monitoring communication information in water to enable a system to be quickly powered on and enter a normal working state, wherein the on-duty circuit is internally provided with a clock circuit, an on-duty awakening circuit, an on-duty amplification circuit, a digital power supply circuit, an analog acquisition power supply circuit, a 3-axis acceleration sensor circuit, a communication circuit, an ADC acquisition circuit, an external RAM, a storage circuit and a signal modulation circuit.
Preferably, the circuit boards of the underwater acoustic transducer are connected in a stacking manner, and a metal plate for fixing and radiating is arranged between the digital board and the power amplification board.
Preferably, the on-duty wake-up circuit enters the amplifier through the P31 to perform signal amplification, transmits information into the on-duty acquisition circuit through voltage division to perform software filtering, detects whether a wake-up code exists, starts an enable pin of the main control power supply through IO if the wake-up code exists, enables the main control circuit to complete power-on initialization operation, synthesizes information to be transmitted by the main control circuit through the signal conditioning circuit, transmits a wake-up feedback signal to the outside through the power amplifier board, and starts the ADC to enter an information receiving flow.
Preferably, the 3-axis acceleration sensor circuit is used for detecting the overall attitude of the underwater acoustic MODEM.
Preferably, the communication circuit is used for transmitting and receiving information in a cable mode, and the ADC acquisition circuit is used for acquiring underwater sound information.
Preferably, the external RAM is used for expanding the main control chip memory to assist in information processing.
Preferably, the storage circuit is used for receiving information and configuring files.
Preferably, the signal modulation circuit is configured to modulate a signal to be sent and drive the power amplifier board to work, and transmit information to be sent through the transducer.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the ultra-low power consumption underwater acoustic communication node, the underwater acoustic communication node is small in size, light in weight and flexible to use through a modularized circuit and a low power consumption design, a duty circuit is adopted and used for a system in an interception mode, the main control circuit is in a power-off state at the moment, only a real-time clock is in a working state when the duty circuit is also in a standby state with ultra-low power consumption, the duty circuit is awakened by the clock at regular time, a main control chip of the duty circuit can intercept whether an awakening signal exists or not, the duty circuit enters a low power consumption state if no awakening code exists, and the main control circuit of the signal can be rapidly awakened after the awakening code is received. The on-duty circuit reduces power consumption by adopting a timing wake-up monitoring mode, namely, a system starts the monitoring circuit to detect whether a wake-up signal exists or not at every set time interval, and if not, the on-duty circuit closes the peripheral monitoring circuit. If the relevant signals are detected, the power supply of the main control circuit is switched on, so that the main control system can be quickly powered on.
2. In the ultra-low power consumption underwater acoustic communication node, the high-performance processing unit is adopted, and integrates the functions of signal processing, control and the like, so that the operation efficiency is improved, the overall power consumption of the system is reduced, and the miniaturization of the system is facilitated.
3. In the ultra-low power consumption underwater acoustic communication node, a real-time low power consumption strategy is characterized in that in order to reduce the power consumption of a system, only an on-duty circuit is in a low power consumption monitoring state in a standby state, a power amplifier board is completely powered off, other functional units of a digital board except a main control chip comprise a memory, an external storage chip, an AD conversion chip and the like, power supply of the digital board is disconnected by using a switch, so that the purpose of reducing the power consumption of the system is achieved, the low power consumption is divided into hardware low power consumption and software control low power consumption, devices with small static current and low power are selected for the hardware low power consumption, a control CPU clock is adopted for the software low power consumption, and power consumption reduction strategies such as a dynamic power consumption management algorithm are adopted.
Drawings
FIG. 1 is a structural component diagram of the present invention;
FIG. 2 is a process flow diagram of the present invention;
FIG. 3 is a clock circuit diagram of the present invention;
FIG. 4 is a circuit diagram of the wake-on-duty circuit of the present invention;
FIG. 5 is an enlarged circuit diagram of the present invention on duty;
FIG. 6 is a digital power supply circuit diagram of the present invention;
FIG. 7 is a circuit diagram of the analog acquisition power supply of the present invention;
FIG. 8 is a circuit diagram of a 3-axis acceleration sensor of the present invention;
FIG. 9 is a communication circuit diagram of the present invention;
FIG. 10 is a circuit diagram of the ADC acquisition of the present invention;
FIG. 11 is a circuit diagram of the external RAM of the present invention;
FIG. 12 is a memory circuit diagram of the present invention;
fig. 13 is a signal modulation circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An ultra-low power consumption underwater acoustic communication node is shown in fig. 1-13 and comprises an underwater acoustic transducer, a main control circuit used for completing signal acquisition, signal processing, communication and control, a power amplification circuit used for amplifying and sending related signals and an on-duty circuit used for monitoring communication information in water to enable a system to be quickly powered on and enter a normal working state, wherein the on-duty circuit is internally provided with a clock circuit, an on-duty awakening circuit, an on-duty amplification circuit, a digital power supply circuit, an analog acquisition power supply circuit, a 3-axis acceleration sensor circuit, a communication circuit, an ADC acquisition circuit, an external RAM, a storage circuit and a signal modulation circuit.
Furthermore, the circuit board of the underwater acoustic transducer is connected in a stacking mode, and a metal plate for fixing and radiating is arranged between the digital board and the power amplification board.
Specifically, the on-duty wake-up circuit enters an amplifier through P31 to perform signal amplification, transmits information into an on-duty acquisition circuit through voltage division to perform software filtering, detects whether a wake-up code exists, starts an enable pin of a main control power supply through IO if the wake-up code exists, enables the main control circuit to complete power-on initialization operation, synthesizes information to be transmitted by the main control circuit through a signal conditioning circuit, transmits a wake-up feedback signal outwards through a power amplifier board, and starts an ADC to enter an information receiving flow.
It is worth mentioning that the 3-axis acceleration sensor circuit is used to detect the overall attitude of the underwater acoustic MODEM.
In addition, communication circuit is used for carrying out information transceiver through there being the cable mode, and ADC acquisition circuit is used for gathering the underwater sound information.
It is worth noting that the external RAM is used for expanding the main control chip memory to assist in information processing, the storage circuit is used for receiving information and configuring files, and the signal modulation circuit is used for modulating a signal to be sent and driving the power amplification board to work, and transmitting the information to be sent out through the transducer.
When the ultra-low power consumption underwater acoustic communication node is used, a signal detected by the underwater acoustic transducer enters the on-duty circuit, and the on-duty circuit detects a wake-up signal through signal amplification and detection. After the wake-up signal is detected, the on-duty circuit can immediately trigger the power supply of the main control board, the main control board completes quick power-on and initialization, the amplified signal is acquired by the AD acquisition circuit and enters the main control chip, and then corresponding information is obtained through information operation decoding, and the information is output outwards. When the system is used for transmitting, the system receives information to be transmitted, exits from a low power consumption mode, completes coding and processing of signals in the main control chip, controls the power amplification board to amplify the signals, and then transmits the information through the transducer.
In the ultra-low power consumption underwater acoustic communication node, the power consumption is reduced by the following three modes:
(1) the on-duty circuit is mainly used for enabling a system to be in an interception mode, enabling the main control circuit to be in a power-off state at the moment, enabling the circuit to be on duty to be in an ultralow power consumption standby state, enabling only a real-time clock to be in a working state, enabling the clock to awaken the circuit on duty regularly, enabling a main control chip of the circuit on duty to intercept whether an awakening signal exists or not, enabling the circuit on duty to enter a low power consumption state if an awakening code does not exist, and enabling the main control circuit of the signal to be awakened quickly if the awakening code is received. The on-duty circuit reduces power consumption by adopting a timing wake-up monitoring mode, namely, a system starts the monitoring circuit to detect whether a wake-up signal exists or not at every set time interval, and if not, the on-duty circuit closes the peripheral monitoring circuit. If the relevant signals are detected, the power supply of the main control circuit is switched on, so that the main control system can be quickly powered on.
(2) The high-performance processing unit is adopted, and integrates the functions of signal processing, control and the like, so that the operation efficiency is improved, the overall power consumption of the system is reduced, and the miniaturization of the system is facilitated.
(3) Real-time low-power-consumption strategy: in order to reduce the system power consumption, only the on-duty circuit is in a low-power-consumption monitoring state in a standby state, the power amplifier board is completely powered off, other functional units of the digital board except a main control chip comprise an internal memory, an external storage chip, an AD conversion chip and the like, the power supply of the digital board is cut off by using a switch, so that the purpose of reducing the system power consumption is achieved, the low power consumption is divided into hardware low power consumption and software control low power consumption, the hardware low power consumption adopts devices with small quiescent current and low power, and the software low power consumption adopts strategies of controlling a CPU clock, a dynamic power consumption management algorithm and the like to reduce the power consumption.
The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. An ultra-low power consumption underwater acoustic communication node, characterized by: the on-duty circuit is provided with a clock circuit, an on-duty awakening circuit, an on-duty amplifying circuit, a digital power supply circuit, an analog acquisition power supply circuit, a 3-axis acceleration sensor circuit, a communication circuit, an ADC acquisition circuit, an external RAM, a storage circuit and a signal modulation circuit.
2. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: the circuit board of the underwater acoustic transducer is connected in a stacking mode, and a metal plate for fixing and radiating is arranged between the digital board and the power amplification board.
3. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: the on-duty awakening circuit enters the amplifier through P31 to amplify signals, transmits information into the on-duty acquisition circuit through voltage division to perform software filtering, detects whether an awakening code exists or not, starts an enable pin of a main control power supply through IO if the awakening code exists, enables the main control circuit to complete power-on initialization operation, synthesizes information to be sent by the main control circuit through the signal conditioning circuit, sends an awakening feedback signal outwards through the power amplifier board, and starts the ADC to enter an information receiving flow.
4. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: and the 3-axis acceleration sensor circuit is used for detecting the integral attitude of the underwater sound MODEM.
5. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: the communication circuit is used for receiving and transmitting information in a cable mode, and the ADC acquisition circuit is used for acquiring underwater sound information.
6. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: and the external RAM is used for expanding the main control chip memory to assist in information processing.
7. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: the storage circuit is used for receiving information and configuring files.
8. The ultra-low power consumption underwater acoustic communication node of claim 1, wherein: the signal modulation circuit is used for modulating a signal to be transmitted, driving the power amplification board to work and transmitting information to be transmitted through the transducer.
CN202121406598.6U 2021-06-23 2021-06-23 Ultra-low power consumption underwater acoustic communication node Active CN215773128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121406598.6U CN215773128U (en) 2021-06-23 2021-06-23 Ultra-low power consumption underwater acoustic communication node

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121406598.6U CN215773128U (en) 2021-06-23 2021-06-23 Ultra-low power consumption underwater acoustic communication node

Publications (1)

Publication Number Publication Date
CN215773128U true CN215773128U (en) 2022-02-08

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Application Number Title Priority Date Filing Date
CN202121406598.6U Active CN215773128U (en) 2021-06-23 2021-06-23 Ultra-low power consumption underwater acoustic communication node

Country Status (1)

Country Link
CN (1) CN215773128U (en)

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