Unlock instant, AI-driven research and patent intelligence for your innovation.
Monitoring method, device and readable storage medium based on polling protocol
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A monitoring device and protocol technology, applied in the direction of data exchange, digital transmission system, bus network, etc. through path configuration, can solve problems such as loss of monitoring information, and achieve the effect of ensuring no loss
Active Publication Date: 2020-07-28
SIEMENS POWER AUTOMATION
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] However, the following problems may occur in actual operation: when a certain IED changes from a normal state to an abnormal state, its state indicator changes from "0" to "1", but it returns to the normal state soon, that is, its state indicator changes again. From "1" to "0"
In this way, there will be a loss of monitoring information
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0060] This embodiment provides a monitoring method based on the polling protocol, the execution subject of the monitoring method is a monitoring device based on the polling protocol, and the monitoring device can be set in the client of the power system, such as the client corresponding to the SCADA system , can also be set independently, which is not limited in this embodiment. The client is, for example, an intelligent electronic device, and specifically may be a protection measurement and control device used in a power system.
[0061] The polling protocol refers to that the monitoring terminal sends an inquiry request to the client at regular intervals, and the client immediately returns a response message after receiving the inquiry request. In the prior art, there are many polling protocols, such as the MODBUS protocol.
[0062] Such as figure 1 As shown, it is a schematicflowchart of the monitoring method based on the polling protocol according to this embodiment. ...
Embodiment 2
[0075] This embodiment provides a further supplementary description of the monitoring method based on the polling protocol in the above embodiments.
[0076] Such as figure 2 As shown, it is a schematicflowchart of the monitoring method based on the polling protocol according to this embodiment. This example includes:
[0077] Step 201, receiving an inquiry request sent by a monitoring terminal for a target information of a client, the inquiry request is used to obtain the current state of the target information, the target information corresponds to a normal state or an abnormal state, and the current state is one of the normal state or the abnormal state , turn to step 202.
[0078] This step is consistent with step 101 and will not be repeated here.
[0079] Step 202, obtain the current state and a flag value, the flag value is used to indicate whether the state of the target information has been reset and changed within a polling cycle, the polling cycle is the curren...
Embodiment 3
[0103] In this embodiment, a specific example is given to describe the monitoring method based on the polling protocol in the above embodiments. In this embodiment, the normal state is represented by "0", and the abnormal state is represented by "1". The marked value Maskbit being 0 indicates that the state of the target information has not been reset and changed within one polling period, and the marked value Maskbit being 1 indicates that the state of the target information has been reset and changed within one polling period.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention relates to a monitoring method and a monitoring device based on a polling protocol, and a readable storage medium. The monitoring method comprises the steps of: receiving a query requestsent by a monitoring terminal for target information of a client, wherein the query request is used for acquiring a current state of the target information, and the current state is one of a normal state and an abnormal state; acquiring the current state of the target information and a corresponding marked value, wherein the marked value is used for representing whether a reset change occurs in the state of the target information in a polling cycle, the polling cycle is an interval from the time when a last query request is received to the time when the query request is currently received, and the rest change represents that the state of the target information has changed and is restored to an initial state when the polling cycle begins; and judging whether to transmit the current state to the monitoring terminal according to the marked value. The monitoring method and the monitoring device can avoid the loss of monitoring information as much as possible.
Description
technical field [0001] The invention relates to the industrial field, in particular to a polling protocol-based monitoring method, device and readable storage medium. Background technique [0002] In the power system, SCADA (Supervisory Control And Data Acquisition, data acquisition and monitoring control system) system is the most widely used, and the technology development is also the most mature. The SCADAsystem is the data acquisition and monitoring control system, which can monitor and control the operating equipment on site to realize various functions such as data acquisition, equipment control, measurement, parameter adjustment and various signal alarms. [0003] In the prior art, the device monitored by the SCADA system may be called an IED (Intelligent Electronic Device, Intelligent Electronic Device), and the polling protocol adopted is generally the Modbus protocol. The polling protocol refers to that the monitoring terminal sends an inquiry request to the clie...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More