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A connection and data readout method of a digital sensor array

A sensor array and digital sensor technology, applied in the field of digital sensors, can solve the problems that digital sensors are difficult to use in large-scale arrays and use

Active Publication Date: 2021-04-02
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings that the existing digital sensors that output data in the form of clock lines plus data lines are difficult to be used in large-scale arrays, and propose a connection method and data readout method for such digital sensor arrays

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  • A connection and data readout method of a digital sensor array

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Embodiment Construction

[0017]The invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018]The following is a digital sensor MAG 3110 as an example, 12 MAG3110 array connection and data reading methods are given. MAG3110 is a kind of I2The sensor of the C bus, all sensors can be set to the same operating mode, such as continuous measurement of the working mode. In this mode of operation, all sensors are the same as the data output format, the output timing, the output timing. Implementing the microcontroller read and written by the sensor, which may be a single chip, ARM, FFPGA, CPLD, and the like, and this embodiment is described as an example of STM32F407.

[0019]Sensor array layout and connection method:

[0020]12 sensors MAG3110 are divided into 3 rows × 4 columns in rectangular array distribution, and the sensor distribution isfigure 1Indicated. The behavior clock lines CLK0, CLK1, CLK2, and the sensor array of arrays are connected to the clock l...

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Abstract

The invention relates to a connection method for a digital sensor array. Multiple digital sensors adopt array distribution, rows and columns of an array are clock lines or data lines, a clock line SCLof each sensor in the array is connected to a clock line SCLi of the array, and i is equal to 1-M; a data input / output line SDA of each sensor in the array is connected to a data line SDAj of the array, and j is equal to 1-N; an IO pin of a micro controller is connected to the clock line and the data line of the sensor array; and the micro controller drives the clock line of the digital sensor array and reads in data of all the sensors in the array by virtue of the data line of the array.

Description

Technical field[0001]The present invention relates to a class of digital sensors.Background technique[0002]Sensor is the main way and means of modern society to obtain information in the field of nature and production. In modern industrial production, especially automated production, various sensors need to be used to acquire various parameter information in the production process; in the Internet of Things, various sensors are used to measure or sense various information in the surrounding environment. Sensor is generally divided into analog sensors and digital sensors. The digital sensor is the traditional analog sensor through the A / D conversion module, so that the output signal is a digital sensor. The advantage of the digital sensor is that the application circuit structure is simple, and the computer is directly input directly to the computer. More digital sensors are now communicating with the outside, such as the common digital sensor with I.2C interface, SPI interface, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 徐建省许铭
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI