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Low-power consumption energy management method suitable for signal processing unit

A signal processing unit and energy management technology, applied in data processing power supply, electrical digital data processing, digital data processing components and other directions, can solve the problem of short working cycle of deepwater data recorder

Active Publication Date: 2015-04-29
BEIJING GREAT WALL ELECTRONICS EQUIP CO LTD
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Problems solved by technology

[0002] Miniaturized deep-water data loggers are used to collect and store underwater acoustic signals in deep water. Short underwater working cycle

Method used

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  • Low-power consumption energy management method suitable for signal processing unit

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Embodiment Construction

[0012] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0013] This embodiment provides a low-power energy management method applied to the signal processing unit of the miniaturized deep-water data recorder, which can effectively reduce the energy consumption during the working process of the signal processing unit and increase the working hours of the miniaturized deep-water data recorder.

[0014] The deep water data recorder is deployed in deep water to collect, process and store underwater acoustic signals. Its signal processing unit includes A\D conversion module, control module and storage module; among them, the control module adopts MSP430FG4618 controller, and the storage module adopts MIC-SD card.

[0015] The low-power analog front-end of the deep-water data recorder composed of an underwater acoustic signal acquisition unit, a preamplifier, and a filter collects underwater acoustic signals, amplifi...

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Abstract

The invention discloses a low-power consumption energy management method suitable for a signal processing unit. The low-power consumption energy management method suitable for the signal processing unit is capable of effectively lowering the energy consumption in the working process of the signal processing unit. The signal processing unit comprises an A / D conversion module, a control module and a storage module; the A / D conversion module continuously and stably performs A / D conversion, and converted digital signals are stored in an A / D conversion register; when the current working state only comprises A / D conversion, the control module locates at a low-power consumption mode. After ending one time of A / D conversion, the control module triggers the interruption to enable the DMA to respond, and the DMA transfers the digital signals stored in the A / D conversion register to a cache of the control module. After finishing one time of DMA data transfer, if the current cache is not fully filled, a main clock is closed immediately; if the current cache is fully filled, the control module enables the destination address of the DMA to point to the other data cache, and at the moment, the control module opens an enabling signal of the storage module to write the data in the cache into the storage module; after finishing writing data, the main clock and the enabling signal of the storage module are closed.

Description

technical field [0001] The invention relates to an energy management method, in particular to a low-power energy management method suitable for signal processing units. Background technique [0002] Miniaturized deep-water data loggers are used to collect and store underwater acoustic signals in deep water. The underwater working cycle is short. In order to enable it to work independently underwater for a long time on the basis of using a small-volume battery, it is necessary to perform low-power energy management on its working process. Contents of the invention [0003] In view of this, the present invention provides a low-power energy management method suitable for signal processing units, which can effectively reduce power consumption during the working process of the signal processing unit, improve energy utilization, and extend the working hours of the system where it is located. [0004] Described signal processing unit comprises: A / D conversion module, control mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32
CPCG06F1/3206G06F1/3287
Inventor 马志腾李阳
Owner BEIJING GREAT WALL ELECTRONICS EQUIP CO LTD
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