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Intelligent signal sampling device by using data interaction of dual micro processor

A microprocessor and data interaction technology, applied in the direction of circuit devices, electrical components, emergency power supply arrangements, etc., can solve the problems of low sampling signal accuracy, narrow sampling signal range, and easy signal divergence, etc., and achieve good isolation effect , wide sampling range and high power supply reliability

Inactive Publication Date: 2009-04-01
上海亿盟电气自动化技术有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

Although such a sampling circuit can better solve the isolation between power supplies, it also brings certain limitations to the sampling of the signal. The sampling signal range is narrow, the sampling signal accuracy is not high, and the signal is prone to divergence, etc.

Method used

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  • Intelligent signal sampling device by using data interaction of dual micro processor

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Such as figure 1 As shown, a signal sampling intelligent device adopting dual microprocessor data interaction is characterized in that it includes microprocessor one and microprocessor two, and said microprocessor one and microprocessor two pass data with the same structure The first interactive circuit is connected to the second data interactive circuit, the first microprocessor is connected to the input end of the first interactive circuit and the output end of the second interactive circuit, and the second microprocessor is connected to the input end of the second interactive circuit and the interactive circuit The output end of one is connected, and the first data interaction circuit and the second data interaction circuit include a high-speed optocoupler, and the input end of the high-speed optocoupler is connected with a reverse drive circuit one and a current ...

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Abstract

The invention relates to an intelligent device for sampling signals by adopting data interaction of double microprocessors, comprising a microprocessor I and a microprocessor II. The microprocessor I and the microprocessor II are connected by a data interactive circuit I and a data interactive circuit II which have the same structure, the microprocessor I is connected with the input terminal of the interactive circuit I and the output terminal of the interactive circuit II, the microprocessor II is connected with the input terminal of the interactive circuit II and the output terminal of the interactive circuit I, both the data interactive circuit I and the data interactive circuit II comprise a high-speed optical coupler, the input terminal of the high-speed optical coupler is connected with a reverse driving circuit I and a current limit resistor, the output terminal of the high-speed optical coupler is connected with a reverse driving circuit II and a pull-up resistor. Compared with the prior art, the invention has the advantages of more reliable power supply, good interval effect between the main and the standby electrical sources, simpler structure and smaller volume.

Description

technical field [0001] The invention relates to voltage signal adopting technology, in particular to a signal sampling intelligent device adopting double microprocessor data interaction. Background technique [0002] For the sampling of voltage signals of two different power sources, it is difficult to solve the isolation between the two different power sources. Once it fails, it will cause a short circuit between the power sources. At present, the isolation of two different power sources is generally completed in the signal sampling circuit, for example, a transformer and a photocoupler are used to obtain a small-level signal that can be detected by the MCU. Although such a sampling circuit can better solve the isolation between power supplies, it also brings certain limitations to the sampling of the signal. The sampling signal range is narrow, the sampling signal accuracy is not high, and the signal is prone to divergence and other shortcomings. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/00
Inventor 李海兵盛昌鑫
Owner 上海亿盟电气自动化技术有限公司
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