CN110222002B - Display screen display parameter polling acquisition method and system based on RS485 serial port communication - Google Patents
Display screen display parameter polling acquisition method and system based on RS485 serial port communication Download PDFInfo
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- CN110222002B CN110222002B CN201910523347.7A CN201910523347A CN110222002B CN 110222002 B CN110222002 B CN 110222002B CN 201910523347 A CN201910523347 A CN 201910523347A CN 110222002 B CN110222002 B CN 110222002B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
Abstract
The utility model discloses a display screen display parameter polling acquisition method and system based on RS485 serial communication, through categorised according to priority level with data, each kind of parameter divide into the multiunit again, carry out the polling acquisition to the parameter in each kind, a set of data in each kind is gathered according to priority level in each polling, the collection frequency of important data has been improved greatly, the collection interval of important data has been shortened, set for the priority level of warning parameter and the data that the user needs to show is higher, can realize in time reporting to the police and the real-time display of the parameter data that the display screen needs to show.
Description
Technical Field
The utility model relates to a data acquisition correlation technique field, specifically say specifically, relate to a display screen display parameter polling acquisition method and system based on RS485 serial communication, can be used to automatic industrial control parameter acquisition field, especially the collection of display screen display parameter among the accurate alternating current distribution monitored control system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the rapid development of computer room data centers, the problem of energy consumption is more and more noticed by people, the energy management and power supply and distribution design related to the data centers become the hot problem, and the scheme of the efficient and reliable data center power distribution system is an effective way for improving the electric energy utilization efficiency of the data centers and reducing the energy consumption of equipment.
To realize energy saving of a data center, accurate monitoring needs to be realized on each power load, load loops of the data center are very many, and the traditional measuring instrument cannot meet various requirements such as cost, volume, installation and construction, so that a multi-loop monitoring device which is suitable for centralized monitoring requirements of the data center, namely a precise alternating current power distribution monitoring system, needs to be adopted.
In the precise alternating-current power distribution monitoring system, a display screen is required to be used for communicating with an acquisition unit through an RS485 bus, and the received electric quantity of each loop of the data center is displayed, so that the energy consumption monitoring of each power consumption load is realized. Because the electric quantity parameters related to a plurality of loops are more, when a user selects a certain monitoring interface, how to shorten the updating time, reduce the waiting time of the client, how to ensure that all parameters are displayed in real time in the display screen, and meanwhile, when a certain parameter is out-of-limit alarming occurs, the display screen end can respond in time, which becomes a problem to be solved urgently in the field.
Disclosure of Invention
The display screen display parameter polling acquisition method and the display screen display parameter polling acquisition system based on RS485 serial port communication are provided for solving the problems, data are classified according to priority levels, each type of parameter is divided into a plurality of groups, parameters in each type are polled and acquired, a group of data in each type is acquired according to the priority levels in each polling, the acquisition frequency of important data is greatly improved, the acquisition time interval of the important data is shortened, the priority levels of alarm parameters and data required to be displayed by a user are set to be higher, and timely alarming and real-time display of the parameter data required to be displayed by a display screen can be realized.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
one or more embodiments provide a display screen display parameter polling acquisition method based on RS485 serial port communication, which includes the following steps:
step 1, grouping parameters to be acquired according to priority to obtain a plurality of parameter classes;
step 2, carrying out internal grouping on each parameter class: setting the quantity of single acquisition of parameters in each parameter class, dividing the parameters in each parameter class into a plurality of parameter groups, and forming a parameter group queue corresponding to one parameter class;
step 3, respectively setting a first parameter group in the parameter group queue of each parameter class as a current parameter group;
step 4, collecting parameter data of one parameter group each time, polling and collecting the parameter data corresponding to the current parameter group in the parameter class from high to low according to the priority level, and finishing polling collection for one time;
and 5, setting the next parameter group of the last acquired data in the parameter group queue of each parameter class as a current parameter group, and executing the step 4.
Further, the parameter classes grouped in the step 1 include an alarm quantity parameter class, a display parameter class of a current page of the display screen, and a non-alarm quantity parameter class.
Further, the priority levels of the grouped parameter classes are the alarm quantity parameter class, the display parameter class of the current page of the display screen and the non-alarm quantity parameter class from high to low.
Furthermore, the display parameter class of the current page of the display screen is divided according to the parameters displayed by the display page, the parameters displayed on the same parameter data display interface are divided into a group, and a plurality of parameter groups under the parameter class are obtained.
Further, the parameter group of the display interface opened by the user currently is set in the parameter group queue corresponding to the display parameter class of the current page of the display screen.
Further, the alarm quantity parameter class and the non-alarm quantity parameter class have the same quantity of parameters in each parameter group.
Further, the method also comprises the following steps before the step 4: and setting the time interval for acquiring the parameter data each time.
A display screen display parameter polling acquisition system based on RS485 serial port communication comprises:
a parameter classification module: the system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring parameters to be acquired according to priorities;
an internal grouping module: for internal grouping of each parameter class: setting the quantity of single acquisition of parameters in each parameter class, dividing the parameters in each parameter class into a plurality of parameter groups, and forming a parameter group queue corresponding to one parameter class;
the current parameter group first setting module: the parameter group queue is used for respectively setting a first parameter group in the parameter group queue of each parameter class as a current parameter group;
a polling acquisition module: the system is used for polling and acquiring parameter data corresponding to the current parameter group in the parameter class from high to low according to the priority level to finish polling and acquiring for one time;
and the current parameter group intermediate setting module is used for setting the next parameter group of the last acquired data in the parameter group queue of each parameter class as the current parameter group and then switching to the polling acquisition module to execute operation.
An electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, the computer instructions, when executed by the processor, performing the steps of the above method.
A computer readable storage medium storing computer instructions which, when executed by a processor, perform the steps of the above method.
Compared with the prior art, the beneficial effect of this disclosure is:
according to the method, the data are classified according to the priority levels, each type of parameter is divided into multiple groups, the parameters in each type are polled and collected, and one group of data in each type is collected according to the priority levels in each polling, so that the collection frequency of important data is greatly improved, the collection time interval of the important data is shortened, the priority levels of alarm parameters and data required to be displayed by a user are set to be higher, and timely alarming and real-time display of the parameter data required to be displayed by a display screen can be realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
FIG. 1 is a flow chart of a method of example 1 of the present disclosure;
fig. 2 is a schematic diagram of a polling collection process in embodiment 1 of the present disclosure.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.
Technical term interpretation:
parameters are as follows: indicating the amount of any phenomenon, device or some important property in its operation. For example, the pressure, temperature, etc. of the steam in the turbine is a parameter of the steam in the turbine; resistance, inductance and capacitance are parameters of the circuit.
Parameter data: is the value collected corresponding to the parameter, such as temperature of 10 deg.C, wherein the parameter is temperature, and the value of 10 deg.C is parameter data.
In the technical solutions disclosed in one or more embodiments, as shown in fig. 1, a display screen display parameter polling acquisition method based on RS485 serial port communication, where the display screen may be a touch screen, includes the following steps:
step 1, grouping parameters to be acquired according to priority to obtain a plurality of parameter classes;
step 2, carrying out internal grouping on each parameter class: setting the quantity of single acquisition of parameters in each parameter class, dividing the parameters in each parameter class into a plurality of parameter groups, and forming a parameter group queue corresponding to one parameter class;
step 3, respectively setting a first parameter group in the parameter group queue of each parameter class as a current parameter group;
step 4, collecting parameter data of one parameter group each time, polling and collecting the parameter data corresponding to the current parameter group in the parameter class from high to low according to the priority level, and finishing polling collection for one time;
and 5, setting the next parameter group of the last acquired data in the parameter group queue of each parameter class as a current parameter group, and executing the step 4.
The data are classified according to priority levels, each type of parameter is divided into a plurality of groups, the parameters in each type are polled and collected, and one group of data in each type is collected according to the priority levels in each polling, and the proportion of the number of important parameters is small in the process of collecting big data of various systems, for example, in an automatic chemical industry control parameter collecting system, particularly in a collecting system of display screen display parameters in a precise alternating current power distribution monitoring system, the proportion of alarm parameters and parameters displayed on a single screen in total parameters is lower than 10%. The polling acquisition method of the embodiment greatly improves the acquisition frequency of important data and shortens the acquisition interval of the important data.
As a further improvement, the parameter classes grouped in step 1 of this embodiment may be classified into three classes, including an alarm parameter class M1, a display parameter class M2 of the current page of the display screen, and a non-alarm parameter class M3.
The display parameter class M2 of the current page of the display screen refers to parameters contained in a display interface selected by a user, and may be as many as hundreds of parameters, the types of the collected parameters are many, data displayed by the display screen at a time may not contain all data, the data displayed by the display screen is generally classified according to devices, for example, data of a certain area is displayed in a display interface, or operation data of a certain device is displayed in a display interface, and the like.
The priority levels of the grouped parameter classes can be an alarm parameter class M1, a display screen current page display parameter class M2 and a non-alarm parameter class M3 from high to low.
The method for internally grouping each parameter class may specifically be:
internal grouping of the alarm quantity parameter class M1: the alarm parameter classes M1 are specifically divided, and may be numbered in groups of 100 parameters, and the obtained parameter groups may be represented as a1, a2, and A3 … …. The 100 parameters are only an example, and may be set according to the number of parameters displayed on a single screen of the display screen, the number of meals is close to the number of parameters displayed on a single screen of the display screen, or may be set according to a specific data acquisition speed and a total number of data.
The display screen displays an internal grouping of the parameter class M2 for the current page:
and dividing the display parameter classes of the current page of the internal grouping display screen of each parameter class according to the parameters displayed by the display page, dividing the parameters displayed on the same parameter data display interface into a group, and obtaining a plurality of parameter groups under the parameter classes. And displaying the parameter groups in the current page of the display screen, obtaining a plurality of parameter groups under the parameter groups, and forming a parameter group queue which only contains the parameter groups of the display interface opened by the user. If only one display interface is displayed currently, the parameter group queue only has one parameter group, and the parameter data of the parameter group of the current interface is polled or collected next time. When the user changes the display interface, the parameter group queue member updates the parameter group of the current display interface. The display screen current page display parameter class M2 is specifically divided according to all display parameter pages, the display interfaces of the display screen can be numbered, when a user switches to each page, the parameters of the current interface are collected, a plurality of display interfaces can be opened, and the numbers of the current display interfaces are represented as B1, B2 and B3 … ….
Inner grouping of non-alarm parameter class M3: the alarm quantity parameter class and the non-alarm quantity parameter class have the same parameter quantity of each parameter group. Or the number of parameters in each parameter group of the alarm quantity parameter class is greater than that of parameters in each parameter group of the non-alarm quantity parameter class, the non-alarm quantity parameter class M3 is divided specifically, and when the alarm quantity parameter class M1 is one parameter group per 100 parameters, the parameters can be numbered as one group per 100 parameters, and are represented as C1, C2 and C3 … …; it is also possible to set less than 100 parameters as one parameter set.
The method also comprises the following steps before the step 4: and setting the time interval for acquiring the parameter data each time. The acquisition time of the display screen is set, the acquisition is carried out once every 200ms, and the acquisition is carried out according to the sequence of M1-M2-M3, namely, the acquisition of data for three times is one period, and one period needs 600ms, so that the timeliness of the parameters is ensured.
The polling collection process implemented in step 3-5 is specifically described below with specific examples, and the display screen is a touch screen, as shown in fig. 2:
(1) polling the A1 parameter in M1 when data is collected for the first time; when data are acquired for the second time, parameters in M2 are correspondingly polled, and because M2 represents current page display parameters of the touch screen, if the current touch screen is in a B1 interface, the parameters of the B1 interface are acquired by the touch screen every time when M2 is polled, so that the real-time updating of the current page display parameters is guaranteed; when data is acquired for the third time, C1 parameters in M3 are polled correspondingly; at this point, the acquisition of the first cycle is completed.
(2) When the data is acquired for the fourth time, the data acquisition is equivalent to the starting of a second acquisition period; correspondingly, the data acquisition for the fourth time is started from polling M1, and since the parameters of A1 are read when polling M1 in the first acquisition cycle, the parameters of A2 are read when polling M1 in the second acquisition cycle after the judgment of software; when data is acquired for the fifth time, parameters in the M2 are correspondingly polled, and because M2 represents the current page display parameters of the touch screen, if the current touch screen is in a B1 interface, the parameters of the B1 interface are acquired by the touch screen every time when the M2 is polled, so that the real-time updating of the current page display parameters is ensured; the sixth time data is acquired, the C2 parameter in M3 is polled correspondingly; at this point, the second cycle of acquisition is complete.
(3) When the seventh data acquisition is performed, the method is equivalent to the starting of a third acquisition period; correspondingly, since the seventh acquisition of data starts from polling M1, the parameters of a2 are read when polling M1 in the second acquisition cycle, and the parameters of A3 are read when polling M1 in the third acquisition cycle after the judgment of software; when data is acquired for the eighth time, parameters in M2 are correspondingly polled, and because M2 represents current page display parameters of the touch screen, if the current touch screen is in a B1 interface, the parameters of the B1 interface are acquired by the touch screen every time M2 is polled, so that real-time updating of the current page display parameters is guaranteed; when the data is collected for the ninth time, the C3 parameter in M3 is polled correspondingly; at this point, the acquisition of the third cycle is completed.
And circularly polling and acquiring according to the acquisition method of each period to respectively perform acquisition of a fourth period.
The polling acquisition process finishes the acquisition of all parameters, ensures that all parameters are displayed in the touch screen in real time by the method, and simultaneously ensures the timeliness because the touch screen end can respond in time when a certain parameter generates out-of-limit alarm.
Example 2
This embodiment provides a display screen display parameter polling acquisition system based on RS485 serial communication, includes:
a parameter classification module: the system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring parameters to be acquired according to priorities;
an internal grouping module: the parameter group management system is used for internally grouping each parameter class, setting the single collection quantity of the parameters in each parameter class, dividing the parameters in each parameter class into a plurality of parameter groups and forming a parameter group queue;
the current parameter group first setting module: the parameter group queue is used for respectively setting a first parameter group in the parameter group queue of each parameter class as a current parameter group;
a polling acquisition module: the system is used for polling and acquiring parameter data corresponding to the current parameter group in the parameter class from high to low according to the priority level to finish polling and acquiring for one time;
and the current parameter group intermediate setting module is used for setting the next parameter group of the data acquired last time in the parameter group queue of each parameter class as the current parameter group and then switching to the polling acquisition module to execute operation.
Example 3
The present embodiment provides an electronic device, 3 comprising a memory and a processor, and computer instructions stored on the memory and executed on the processor, wherein the computer instructions, when executed by the processor, perform the steps of the method of embodiment 1.
Example 4
The present embodiment provides a computer readable storage medium for storing computer instructions which, when executed by a processor, perform the steps of the method of embodiment 1.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (9)
1. A display screen display parameter polling acquisition method based on RS485 serial port communication is characterized by comprising the following steps:
step 1, grouping parameters to be acquired according to priority to obtain a plurality of parameter classes;
step 2, carrying out internal grouping on each parameter class: setting the quantity of single acquisition of parameters in each parameter class, dividing the parameters in each parameter class into a plurality of parameter groups, and forming a parameter group queue corresponding to one parameter class;
step 3, respectively setting a first parameter group in the parameter group queue of each parameter class as a current parameter group;
step 4, collecting parameter data of one parameter group each time, polling and collecting the parameter data corresponding to the current parameter group in the parameter class from high to low according to the priority level, and finishing polling collection for one time;
step 5, setting the next parameter group of the last acquired data in the parameter group queue of each parameter class as the current parameter group, and executing step 4;
the parameter classes grouped in the step 1 are divided into three classes: m1, displaying parameter classes M2 and M3 on the current page of the display screen;
the parameter groups including the M1 category in the step 2 are A1, A2 and A3 … …, the parameter group of M2 is B1, B2 and B3 … …, and the parameter group of M3 is C1, C2 and C3 … …;
when the user replaces the display interface, the M2 parameter group queue member is updated to the parameter group of the current display interface;
the implementation process of the step 3-5 is as follows:
(1) polling the A1 parameter in M1 when data is collected for the first time; polling the parameter group parameters of the current display interface in M2 when acquiring data for the second time, and polling the C1 parameters in M3 when acquiring data for the third time; the acquisition of the first period is completed;
(2) when the data is acquired for the fourth time, the data acquisition is equivalent to the starting of a second acquisition period; correspondingly, the fourth data acquisition is started from polling M1, and after the software judgment, the parameters of A2 are read when M1 is polled in the second period; polling the parameter group parameters of the current display interface in M2 when acquiring data for the fifth time; the sixth time data is acquired, the C2 parameter in M3 is polled correspondingly; the acquisition of the second period is completed;
(3) when the seventh data acquisition is performed, the method is equivalent to the starting of a third acquisition period; correspondingly, the seventh data acquisition is started from polling M1, and after the judgment by software, the parameter of A3 is read when polling M1 in the third period; when the data is collected for the eighth time, polling the parameter group parameters of the current display interface in M2, and when the data is collected for the ninth time, correspondingly polling the C3 parameters in M3; the acquisition of the third period is completed;
and circularly polling and acquiring according to the acquisition method of the period.
2. The display screen display parameter polling collection method based on RS485 serial port communication as claimed in claim 1, wherein: the parameter classes grouped in the step 1 comprise an alarm quantity parameter class, a display parameter class of a current page of a display screen and a non-alarm quantity parameter class.
3. The display screen display parameter polling collection method based on RS485 serial port communication as claimed in claim 2, characterized in that: the priority levels of the grouped parameter classes are an alarm quantity parameter class, a display parameter class of a current page of a display screen and a non-alarm quantity parameter class from high to low.
4. The display screen display parameter polling collection method based on RS485 serial port communication as claimed in claim 2, characterized in that: the display screen current page display parameter class is divided according to parameters displayed by the display page, the parameters displayed on the same parameter data display interface are divided into a group, and a plurality of parameter groups under the parameter class are obtained.
5. The display screen display parameter polling collection method based on RS485 serial port communication as claimed in claim 2, characterized in that: the alarm quantity parameter class and the non-alarm quantity parameter class have the same parameter quantity of each parameter group.
6. The display screen display parameter polling collection method based on RS485 serial port communication as claimed in claim 1, wherein: the method also comprises the following steps before the step 4: and setting the time interval for acquiring the parameter data each time.
7. The utility model provides a display screen display parameter polling collection system based on RS485 serial communication which characterized by includes:
a parameter classification module: the system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring parameters to be acquired according to priorities;
an internal grouping module: for internal grouping of each parameter class: setting the quantity of single acquisition of parameters in each parameter class, dividing the parameters in each parameter class into a plurality of parameter groups, and forming a parameter group queue corresponding to one parameter class;
the current parameter group first setting module: the parameter group queue is used for respectively setting a first parameter group in the parameter group queue of each parameter class as a current parameter group;
a polling acquisition module: the system is used for polling and acquiring parameter data corresponding to the current parameter group in the parameter class from high to low according to the priority level to finish polling and acquiring for one time;
the current parameter group middle setting module is used for setting the next parameter group of the last acquired data in the parameter group queue of each parameter class as the current parameter group and then switching to the polling acquisition module to execute operation;
the grouped parameter classes in the parameter classification module are divided into three classes: m1, displaying parameter classes M2 and M3 on the current page of the display screen;
the internal grouping module comprises parameter groups of M1 types, wherein the parameter groups are A1, A2 and A3 … …, the parameter groups of M2 are B1, B2 and B3 … …, and the parameter groups of M3 are C1, C2 and C3 … …;
when the user replaces the display interface, the M2 parameter group queue member is updated to the parameter group of the current display interface;
the current parameter group first setting module and the polling acquisition module realize the following steps:
(1) polling the A1 parameter in M1 when data is collected for the first time; polling the parameter group parameters of the current display interface in M2 when acquiring data for the second time, and polling the C1 parameters in M3 when acquiring data for the third time; the acquisition of the first period is completed;
(2) when the data is acquired for the fourth time, the data acquisition is equivalent to the starting of a second acquisition period; correspondingly, the fourth data acquisition is started from polling M1, and after the software judgment, the parameters of A2 are read when M1 is polled in the second period; polling the parameter group parameters of the current display interface in M2 when acquiring data for the fifth time; the sixth time data is acquired, the C2 parameter in M3 is polled correspondingly; the acquisition of the second period is completed;
(3) when the seventh data acquisition is performed, the method is equivalent to the starting of a third acquisition period; correspondingly, the seventh data acquisition is started from polling M1, and after the judgment by software, the parameter of A3 is read when polling M1 in the third period; when the data is collected for the eighth time, polling the parameter group parameters of the current display interface in M2, and when the data is collected for the ninth time, correspondingly polling the C3 parameters in M3; the acquisition of the third period is completed;
and circularly polling and acquiring according to the acquisition method of the period.
8. An electronic device comprising a memory and a processor and computer instructions stored on the memory and executable on the processor, the computer instructions when executed by the processor performing the steps of the method of any of claims 1 to 6.
9. A computer-readable storage medium storing computer instructions which, when executed by a processor, perform the steps of the method of any one of claims 1 to 6.
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