Title:
DEVICE RESOURCE COLLECTION METHOD BASED ON 485 TIME-SHARING COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2018/153127
Kind Code:
A1
Abstract:
Disclosed is a device resource collection method based on 485 time-sharing communication, the method comprising the following steps: determining a time slot of a master device and each of slave devices connected thereto via an RS485 bus; within the time slot of each of the slave devices, sending a resource change message to the master device; within the time slot of the master device, simultaneously returning, according to the received resource change message, a resource acquisition request to a corresponding slave device; and sending, according to the resource acquisition request received by the slave device, resource data to the master device within the time slot of the slave device. The present invention realizes that a master device and a slave device send data in the respective time slots thereof. Since the master device can concurrently send a resource acquisition request to the slave device, and the slave device returns the resource data to the master device in a time sharing manner, the present invention can quickly and accurately complete the collection of resources by the master device from the slave device, thus avoiding communication conflicts, having concurrency, high efficiency, security and redundancy, making management convenient, and being able to meet the large-scale data collection requirements of communication devices.
Inventors:
ZHOU MING (CN)
ZHANG ZHI (CN)
QI XIAOXU (CN)
MENG QINGRUI (CN)
ZHANG ZHI (CN)
QI XIAOXU (CN)
MENG QINGRUI (CN)
Application Number:
PCT/CN2017/111558
Publication Date:
August 30, 2018
Filing Date:
November 17, 2017
Export Citation:
Assignee:
FIBERHOME TELECOMMUNICATION TECH CO LTD (CN)
International Classes:
H04J3/16; H04L12/801
Foreign References:
| CN105608037A | 2016-05-25 | |||
| CN103001722A | 2013-03-27 | |||
| CN106953809A | 2017-07-14 | |||
| CN107294827A | 2017-10-24 | |||
| US20120093203A1 | 2012-04-19 |
Attorney, Agent or Firm:
WUHAN ZHI QUAN PATENT AGENCY (CN)
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