CN110703678B - Computing method and system for quickly retrieving effective link of coal conveying equipment - Google Patents
Computing method and system for quickly retrieving effective link of coal conveying equipment Download PDFInfo
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- CN110703678B CN110703678B CN201910958004.3A CN201910958004A CN110703678B CN 110703678 B CN110703678 B CN 110703678B CN 201910958004 A CN201910958004 A CN 201910958004A CN 110703678 B CN110703678 B CN 110703678B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
Abstract
The invention discloses a computing method and a computing system for quickly retrieving an effective link of coal conveying equipment, which are used for solving the technical problem that the effective link of the coal conveying equipment cannot be quickly and accurately retrieved in the prior art by acquiring layer nodes classified according to the types of equipment passing from a coal yard belt to a raw coal bunker, acquiring real-time state signals of the equipment in the layer nodes, acquiring random combinations of the real-time state signals of one piece of equipment respectively selected from each layer node, performing and computing on elements in each random combination and acquiring the effective link of the coal conveying equipment according to the equipment corresponding to the real time of a computing result, skillfully converting the problem that the effective link of the coal conveying equipment cannot be quickly and accurately retrieved manually, and not only can the effective link of the coal conveying equipment be quickly acquired in real time, but also the accuracy is high.
Description
Technical Field
The invention relates to the field of furnace-dividing coal quantity calculation of coal-fired generating sets of thermal power plants, in particular to a calculation method and a system for quickly searching effective links of coal conveying equipment.
Background
The coal occupies more than 70% of the production cost of thermal power enterprises, the coal is conveyed to a boiler for combustion from a coal yard through a belt, a general belt scale is usually arranged on a belt entering the boiler, the coal needs to pass through the boiler, the coal starts from the coal yard and enters a raw coal bunker in front of the boiler, and a plurality of coal conveying equipment such as belts, tee joints, coal ploughs and the like are needed in the middle. However, coal conveying equipment is composed of N different combined paths, a manual meter reading mode is adopted at present to record the coal-fired charging amount, although programs are used for calculation, a traditional method is adopted, namely the first coal conveying equipment is used for judging which equipment is in an effective state one by one, and then the next coal conveying equipment of the equipment is used for judging which equipment is in an effective state one by one until the original coal bunker, and the method is large in calculation amount, easy to generate logic omission and inaccurate in data calculation.
Disclosure of Invention
The invention provides a computing method and a computing system for quickly retrieving an effective link of coal conveying equipment, which solve the technical problem that the effective link of the coal conveying equipment cannot be quickly and accurately retrieved in the prior art.
In order to solve the technical problem, the calculation method for quickly searching the effective link of the coal conveying equipment provided by the invention comprises the following steps:
acquiring layer nodes classified according to the type of equipment passing from a coal yard belt to a raw coal bunker;
collecting real-time state signals of equipment in layer nodes;
acquiring a random combination of real-time state signals of one device respectively selected from each layer node;
performing AND calculation on elements in each random combination;
and obtaining the effective link of the coal conveying equipment according to the equipment corresponding to the true time of the calculation result.
Further, the layer nodes comprise belt scale belt equipment nodes consisting of belt scale belt equipment, tee joint equipment nodes consisting of tee joint equipment, furnace entering belt equipment nodes consisting of furnace entering belt equipment and coal plough equipment nodes consisting of coal plough equipment.
Further, acquiring real-time status signals of devices in the layer nodes comprises:
and collecting real-time state signals of equipment in the layer nodes from the coal conveying program control PLC, wherein the real-time state signals are true values or false values.
Further, obtaining a random combination of real-time status signals of a device respectively selected from each layer node comprises:
the method comprises the steps of obtaining a random combination of a first real-time state signal, a second real-time state signal, a third real-time state signal and a fourth real-time state signal, wherein the first real-time state signal is a real-time state signal of a belt device of the belt scale randomly selected from belt device nodes of the belt scale, the second real-time state signal is a real-time state signal of a tee joint device randomly selected from the tee joint device nodes, the third real-time state signal is a real-time state signal of a belt device entering the furnace randomly selected from belt device nodes entering the furnace, and the fourth real-time state signal is a real-time state signal of a coal plough device randomly selected from the coal plough device nodes.
Further, obtaining the effective link of the coal conveying equipment according to the equipment corresponding to the true time of the calculation result comprises:
and when the calculation result is true, the equipment combination which participates in the element corresponding to the random combination which is calculated as true is taken as the effective link of the coal conveying equipment.
Further, belt weigher belt equipment node includes 2 belt weigher belt equipments, and tee bend equipment node includes 2 tee bend equipment, goes into stove belt equipment node and includes 2 belt equipments that go into the stove, and coal plough equipment node includes 12 coal plough equipment.
The invention provides a computing system for quickly searching an effective link of coal conveying equipment, which comprises:
the computer program is stored on the memory and can be run on the processor, and the processor can realize the steps of the computing method for quickly searching the effective link of the coal conveying equipment.
Compared with the prior art, the invention has the advantages that:
the invention provides a computing method and a computing system for quickly retrieving an effective link of coal conveying equipment, which are used for acquiring layer nodes classified according to the types of equipment passing by coal from a coal yard belt to a raw coal bunker, acquiring real-time state signals of the equipment in the layer nodes, acquiring random combinations of the real-time state signals of one piece of equipment respectively selected from each layer node, performing and computing on elements in each random combination and obtaining the effective link of the coal conveying equipment according to the equipment corresponding to the real time of a computing result.
Drawings
FIG. 1 is a flowchart of a calculation method for quickly retrieving an effective link of a coal transporting apparatus according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a calculation method for quickly retrieving an effective link of a coal transporting apparatus according to a second embodiment of the present invention;
FIG. 3 is a schematic view of the nodes of the installation through which the coal of example two of the present invention passes from the belt to the raw coal bunker;
FIG. 4 is a block diagram of a computing system for quickly retrieving an active link of a coal handling equipment in accordance with an embodiment of the present invention.
Reference numerals:
10. a memory; 20. a processor.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Example one
Referring to fig. 1, a computing method for quickly retrieving an effective link of a coal conveying apparatus according to an embodiment of the present invention includes:
step S101, layer nodes classified according to the type of equipment passing from a coal yard belt to a raw coal bunker are obtained;
step S102, collecting real-time state signals of equipment in layer nodes;
step S103, acquiring a random combination of real-time state signals of one device respectively selected from each layer node;
step S104, carrying out AND calculation on elements in each random combination;
and step S105, obtaining the effective link of the coal conveying equipment according to the equipment corresponding to the true time of the calculation result.
The method for calculating the effective link of the rapid retrieval coal conveying equipment provided by the embodiment of the invention comprises the steps of acquiring layer nodes classified according to the types of equipment passing by fire coal from a coal yard belt to a raw coal bunker, acquiring real-time state signals of the equipment in the layer nodes, acquiring random combinations of the real-time state signals of one piece of equipment respectively selected from each layer node, carrying out and calculation on elements in each random combination, and acquiring the effective link of the coal conveying equipment according to the equipment corresponding to the real time of the calculation result.
Example two
Referring to fig. 2, a computing method for quickly retrieving an effective link of a coal conveying apparatus according to a second embodiment of the present invention includes:
step S201, layer nodes classified according to the type of equipment passing from a coal yard belt to a raw coal bunker of the fire coal are obtained, and the layer nodes comprise belt scale belt equipment nodes formed by belt scale belt equipment, tee joint equipment nodes formed by tee joint equipment, furnace entering belt equipment nodes formed by furnace entering belt equipment and coal plough equipment nodes formed by coal plough equipment.
In the thermal power generation process, the coal from the coal yard to the raw coal bunker in front of the boiler needs to pass through a plurality of coal conveying devices such as belts, tee joints and coal ploughs, and in the embodiment, the coal from the coal yard to the raw coal bunker mainly passes through four types of devices, namely belt weigher belt device, tee joint device, furnace entering belt device and coal ploughs. Based on this, the present embodiment divides the coal from the coal yard belt to the raw coal bunker into four layer nodes classified according to the types of the above four devices.
In the embodiment, the layer nodes corresponding to different devices are obtained by classifying the coal according to the types of the devices passing from the coal yard belt to the raw coal bunker, the devices on the coal conveying device link are effectively distinguished, the number of elements in random combination used for calculation can be effectively determined, the effective link of the coal conveying device obtained based on the calculation result can only include one device in each layer node, and the accuracy and the reliability of the effective link of the coal conveying device are ensured.
Referring to fig. 3, fig. 3 is a schematic diagram of the equipment node through which the fire coal passes from the belt to the raw coal bunker in this embodiment, and it is assumed that the belt equipment node of the belt weigher in this embodiment includes 2 belt equipments of the belt weigher, the three-way equipment node includes 2 three-way equipments, the belt equipment node of the coal entering into the furnace includes 2 belt equipments of the coal entering into the furnace, and the coal plough equipment node includes 12 coal plough equipments. In fig. 3, T1 and T2 indicate coal belts equipped with belt weighers, i.e., belt weigher belts, PDC1 and PDC2 indicate furnace-entering belt weighers, specifically, PDC1 and PDC2 in this example represent readings of the belt weighers, which are analog quantities, ST1 and ST2 indicate tee joints connecting the furnace-entering belts, P1 and P2 indicate furnace-entering coal belts, L11, L21, L31, L12, L22, L32, L41, L51, L61, L42, L52, and L62 indicate coal plows on the furnace coal belts, a1, a2, A3, A4, A5, and a6 indicate raw coal bunkers, and a and B indicate power generating sets.
Step S202, collecting real-time state signals of equipment in the layer nodes from the coal conveying program control PLC, wherein the real-time state signals are true values or false values.
In the embodiment, the reading of the belt weigher, the belt running signal of the belt weigher, the three-way signal, the furnace entering belt signal, the coal plough signal, the signal generation time and the like can be obtained through a coal conveying program control PLC (programmable logic controller). Specifically, in this embodiment, the real-time status signals of the devices in the layer nodes are collected from the coal conveying program control PLC through the coal conveying program control PLC, and the real-time status signals are true values or false values. This embodiment defines the real-time status signal of the equipment through which the coal is passing as the true value.
Step S203, a random combination of a first real-time state signal, a second real-time state signal, a third real-time state signal and a fourth real-time state signal is obtained, wherein the first real-time state signal is a real-time state signal of a belt device of the belt scale arbitrarily selected from belt device nodes of the belt scale, the second real-time state signal is a real-time state signal of a tee joint device arbitrarily selected from the tee joint device nodes, the third real-time state signal is a real-time state signal of a belt device entering the furnace arbitrarily selected from the belt device nodes of the belt entering the furnace, and the fourth real-time state signal is a real-time state signal of a coal plough device arbitrarily selected from the coal plough device nodes.
In this embodiment, any combination of the coal from the belt weighers (PDC1, PDC2) and entering the raw coal bunker (a1, a2, etc.) through the belt weighers (T1, T2), the tees (ST1, ST2), the charging belts (P1, P2), the coal ploughs (L11, L12, etc.) is a coal conveying link, wherein the combination of the equipments through which the coal is currently passing is an effective link.
In this embodiment, after obtaining the real-time status signals of all the devices of each layer node according to step S202, one coal transportation device is respectively selected from each layer node according to the specific definition of the effective link of the coal transportation device (the combination of the devices through which the current coal is passing), so as to form a random combination capable of determining the effective link of the coal transportation device according to the calculation result.
Specifically, a real-time state signal of any belt weigher belt equipment is selected from belt weigher belt equipment nodes, a real-time state signal of any three-way equipment is selected from the three-way equipment nodes, a real-time state signal of any furnace-entering belt equipment is selected from the furnace-entering belt equipment nodes, a real-time state signal of any coal plough equipment is selected from the coal plough equipment nodes, and a random combination is formed according to the four real-time state signals.
It should be noted that, in this embodiment, the random combinations obtained according to the selection rule of step S203 are multiple, and the maximum number of the random combinations is related to the device in each layer node, in an actual implementation process, this embodiment may adopt an exhaustive method to obtain all the random combinations, and may also obtain all the random combinations by defining an array.
Step S204, and calculation is carried out on the elements in each random combination.
Specifically, in this embodiment, the elements in each random combination obtained by the exhaustive method may be subjected to and calculation, or an array may be defined, and the elements in the array may be subjected to round-robin calculation, so that the elements in all random combinations are subjected to and calculation.
And S205, when the calculation result is true, taking the equipment combination corresponding to the element in the random combination which is calculated to be true as the effective link of the coal conveying equipment.
Specifically, when the and calculation result of the embodiment is true, it indicates that the coal conveying equipment of each current node forms an effective link. The specific number and name of each type of device is thus available. When the and calculation results are not obtained when the and calculation results are true values after the and calculation is performed on all elements in the random combination, it indicates that the current device signal cannot form an effective link.
For example, assuming that the random combination of participation and calculation is [ T1, ST1, P2, L21], and the result of calculation for four elements in the random combination is true, then the effective link of the coal transportation facility is obtained: belt weigher belt T1-tee ST 1-furnace entering belt P2-coal plough L21.
According to the method, the logic principle of calculation is ingeniously conceived according to the meaning of the real-time state signal of the equipment and the definition that the effective link is the equipment combination through which the coal is passing, and the real-time state signal of the equipment is defined as the calculation element of calculation, so that the complicated and tedious problem of manually acquiring the effective link of the coal conveying equipment is converted into the problem of simply, quickly and calculating, the time for manually acquiring the effective link is greatly shortened, and the accuracy and reliability of the effective link acquired according to the calculation result are greatly improved.
Referring to fig. 4, a computing system for quickly retrieving an effective link of a coal transporting apparatus according to an embodiment of the present invention includes:
the system comprises a memory 10, a processor 20 and a computer program stored on the memory 20 and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the calculation method for quickly searching the effective link of the coal conveying equipment.
The specific working process and working principle of the computing system for quickly retrieving the effective link of the coal conveying equipment in the embodiment can refer to the working process and working principle of the computing method for quickly retrieving the effective link of the coal conveying equipment in the embodiment.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A computing method for quickly searching an effective link of a coal conveying device is characterized by comprising the following steps:
acquiring layer nodes classified according to the type of equipment passing from a coal yard belt to a raw coal bunker;
collecting real-time state signals of equipment in the layer nodes;
acquiring a random combination of real-time state signals of one device respectively selected from each layer node;
performing AND calculation on the elements in each random combination;
and obtaining the effective link of the coal conveying equipment according to the equipment corresponding to the true time of the calculation result.
2. The method of claim 1, wherein the layer nodes include a belt scale belt equipment node comprising a belt scale belt equipment, a tee equipment node comprising a tee equipment, a furnace belt equipment node comprising a furnace belt equipment, and a coal plough equipment node comprising a coal plough equipment.
3. The method of claim 2, wherein collecting real-time status signals of equipment in the tier nodes comprises:
and acquiring real-time state signals of equipment in the layer nodes from the coal conveying program control PLC, wherein the real-time state signals are true values or false values.
4. The method of claim 3, wherein obtaining a random combination of real-time status signals from each of the tier nodes for a respective device comprises:
the method comprises the steps of obtaining a random combination of a first real-time state signal, a second real-time state signal, a third real-time state signal and a fourth real-time state signal, wherein the first real-time state signal is a real-time state signal of a belt device of the belt scale randomly selected from belt device nodes of the belt scale, the second real-time state signal is a real-time state signal of a three-way device randomly selected from the three-way device nodes of the belt scale, the third real-time state signal is a real-time state signal of a furnace belt device randomly selected from the furnace belt device nodes of the furnace, and the fourth real-time state signal is a real-time state signal of a coal plough device randomly selected from the coal plough device nodes of the furnace.
5. The method of claim 4, wherein obtaining the effective link of the coal transporting equipment according to the equipment corresponding to the time when the calculation result is true comprises:
and when the and calculation result is true, taking the equipment combination corresponding to the element in the random combination which participates in the true calculation as the effective link of the coal conveying equipment.
6. The method for quickly retrieving an effective link of a coal transporting apparatus according to claim 5,
the belt weigher belt equipment node comprises 2 belt weigher belt equipments, the tee joint equipment node comprises 2 tee joint equipments, the furnace entering belt equipment node comprises 2 furnace entering belt equipments, and the coal plough equipment node comprises 12 coal plough equipment.
7. A computing system for rapidly retrieving an active link of a coal handling equipment, the system comprising:
memory (10), processor (20) and a computer program stored on the memory (10) and executable on the processor (20), the processor (20) implementing the steps of the method of any of the preceding claims 1 to 6 when executing the computer program.
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| CN104483952A (en) * | 2014-12-31 | 2015-04-01 | 华电郑州机械设计研究院有限公司 | Novel intelligent coal conveying control system based on FCS on-site bus technology |
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