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A data access method, system, device, equipment and storage medium

A data access and data technology, applied in the field of communication, can solve problems such as the inability to guarantee device access and response speed

Active Publication Date: 2021-04-30
杭州华塑科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For point-to-point single-device access, the above access can ensure fast access and response speed when the bit rate is constant, and has a better experience; but when more devices pass through a UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver Transmitter ) The serial bus is connected together, and when accessing randomly and uninterruptedly, there is no guarantee that each device can maintain fast access and response speed. Therefore, it is necessary to provide a more reliable and efficient solution

Method used

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  • A data access method, system, device, equipment and storage medium
  • A data access method, system, device, equipment and storage medium
  • A data access method, system, device, equipment and storage medium

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0040] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or des...

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Abstract

The present application discloses a data access method, system, device, device, and storage medium. The method includes: polling the status data of at least two slave devices; operation of the status data of the device, and send a target access operation request corresponding to the interrupt instruction to the target slave device, and the target access operation request includes the data type of the target data corresponding to the target access operation, so that the The target slave device determines the target storage area based on the data type, and executes the target access operation based on the target storage area; receives the response information of the target access operation fed back by the target slave device; resumes polling the at least Operation of status class data of two slave devices. The technical solution provided by this application can enable each device to maintain fast access and response speed under the one-master-multiple-slave mode based on serial port communication.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a data access method, system, device, equipment and storage medium. Background technique [0002] The existing UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver Transmitter) communication generally adopts the ModBus protocol (a serial communication protocol), whether it is point-to-point UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver Transmitter) communication or Bus-type UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver Transmitter) communication generally adopts this communication mode. Most of the hardware interfaces used in communication are RS-232 interface (serial communication interface) and RS-485 interface (serial communication interface). In this communication mode, the communication master device first sends a request data to the communication sla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/24G06F13/366
CPCG06F13/24G06F13/366G06F2213/0002
Inventor 杨冬强李明星段欢谢卿
Owner 杭州华塑科技股份有限公司