CN113467394A - Material conveying operation flow control method, device and system - Google Patents
Material conveying operation flow control method, device and system Download PDFInfo
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Abstract
The application relates to a method, a device and a system for controlling a material conveying operation process. The method comprises the following steps: acquiring a first state parameter of material taking equipment, a second state parameter of material unloading equipment, a third state parameter of a plurality of conveying equipment and a fourth state parameter of a plurality of auxiliary equipment; the first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data and preparation time of the discharging equipment; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter includes a latency of the auxiliary device; determining first time for the material to reach each conveying device and second time for the material to reach the discharging device according to the first state parameters, the position data of the discharging device and each third state parameter; and obtaining a starting time sequence based on the first time, the second time, the preparation time of the unloading equipment and the fourth state parameters. The application can accurately control the starting time of each device, and improves the conveying efficiency of materials.
Description
Technical Field
The application relates to the technical field of material transmission operation control, in particular to a shipment material operation amount control method, a controller and a control system.
Background
The automatic conveying operation flow of the bulk and general cargo belt conveyor means that coal materials given by feeding equipment are finally conveyed to discharging equipment through N belt conveyors and auxiliary equipment (comprising turning plates, telescopic heads or fixed mechanical structures) among the belt conveyors. In the prior art, all auxiliary equipment generally acts to an operation station and all belt conveyors operate, feeding action can be carried out on the material taking equipment, and coal finally reaches the discharging equipment through the belt conveyors and the auxiliary equipment. The coal material can arrive at the unloading equipment immediately when the preparation of the unloading equipment is finished by calculating the positioning and preparation time of the unloading equipment and the time of the feeding equipment feeding the coal material to finally arrive at the unloading equipment through all the equipment, but the belt conveyor along the operation flow line is idle for a period of time at the moment, and the idle time of the belt conveyor is longer due to the fact that the accurate calculation cannot be carried out under the condition of automatic switching control when two operation flows contain the same equipment or a plurality of same equipment, and energy consumption waste and efficiency reduction are caused to a certain extent.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the traditional material conveying operation flow has low working efficiency.
Disclosure of Invention
In view of the above, it is necessary to provide a method, a device and a system for controlling a material conveying process.
A material conveying operation flow control method comprises the following steps:
acquiring a first state parameter of material taking equipment, a second state parameter of material unloading equipment, a third state parameter of a plurality of conveying equipment and a fourth state parameter of a plurality of auxiliary equipment arranged between any two conveying equipment; the first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data of the discharging equipment and preparation time of the discharging equipment; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter includes a latency of the auxiliary device;
determining first time for the material to reach each conveying device and second time for the material to reach the discharging device according to the first state parameters, the position data of the discharging device and each third state parameter;
obtaining a starting time sequence based on the first time, the second time, the preparation time of the unloading equipment and the fourth state parameters;
outputting a starting signal to corresponding equipment according to a starting time sequence; the activation signal is used to indicate device activation.
In one embodiment, the third state parameter further comprises a start time of the conveying device and a brake time of the conveying device; the fourth state parameter further comprises an action time of the auxiliary device;
obtaining a starting time sequence based on the first time, the second time, the preparation time of the unloading equipment and the fourth state parameters, wherein the starting time sequence comprises the following steps:
obtaining the starting time of each conveying device, the starting time of each auxiliary device and the starting time of the discharging device on the basis of each first time, each second time, the preparation time of the discharging device, the waiting time of each auxiliary device, the action time of each auxiliary device, the starting time of each conveying device and the braking time of each conveying device; the starting time of the conveying equipment is first starting time after the material taking equipment is started; the starting time of the auxiliary equipment is second starting time after the material taking equipment is started; the starting time of the discharging equipment is the third starting time after the discharging equipment is started.
In one of the embodiments, the first and second electrodes are,
the first start-up time is obtained based on the following model:
an＝Tn-STn-BTn-1
the second start-up time is obtained based on the following model:
bn-1＝Tn-1-BTn-1
the third start-up time is obtained based on the following model:
cm＝Tm-LT-BTn
wherein n is more than or equal to 1; a isnA first start time for the nth conveying apparatus; t isnThe first time when the material reaches the nth conveying equipment; ST (ST)nThe starting time of the nth conveying equipment; BT (BT)n-1The braking time of the n-1 th conveying device; bn-1A second start time for the (n-1) th auxiliary device; t isn-1The first time when the material reaches the (n-1) th conveying equipment; c. CmIs a third start-up time; t ismIs the third time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveyance device.
In one embodiment, before the step of obtaining the start timing sequence based on each of the first time, the second time, the preparation time of the discharging device, and each of the fourth state parameters, the method further includes:
based on the first time, the action time of the auxiliary equipment, the waiting time of the auxiliary equipment, the braking time of the conveying equipment and the preparation time of the unloading equipment, if the first feeding condition and the second feeding condition are confirmed to be met, outputting a starting signal to the material taking equipment;
the first feeding conditions were:
bn-1＞PTn-1+BTn-1+WTn-1
the second feeding conditions are as follows:
cm＞LT+BTn
wherein n is more than or equal to 1; bn-1A second start time for the (n-1) th auxiliary device; PTn-1The action time of the (n-1) th auxiliary equipment; BT (BT)n-1The braking time of the n-1 th conveying device; WT (WT)n-1Latency for the n-1 th auxiliary device; c. CmIs a third start-up time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveyance device.
In one embodiment, after the step of outputting the activation signal to the corresponding device according to the activation sequence, the method further includes:
if the conveying equipment is not in the running state within the first alarm time after the starting signal is output to the conveying equipment, outputting a first alarm signal; the first alarm signal is used for indicating conveying equipment on the operation flow line and all conveying equipment in front of the conveying equipment to suddenly stop;
if the auxiliary equipment does not reach the operation station within the second alarm time before the materials reach the auxiliary equipment, outputting a second alarm signal; the second alarm signal is used to indicate that all the conveying equipment in front of the auxiliary equipment on the operation flow line is in emergency stop.
In one embodiment, the first alarm time is the difference between the first time of the delivery apparatus and the start time of the delivery apparatus;
the second alarm time is the brake time of the previous conveying equipment of the auxiliary equipment on the operation flow line.
A material conveying work flow control device comprises:
the data acquisition module is used for acquiring a first state parameter of the material taking equipment, a second state parameter of the material unloading equipment, a third state parameter of the plurality of conveying equipment and a fourth state parameter of the plurality of auxiliary equipment arranged between any two conveying equipment; the first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data of the discharging equipment and preparation time of the discharging equipment; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter includes a latency of the auxiliary device;
the time acquisition module is used for determining first time for the material to reach each conveying device and second time for the material to reach the unloading device according to the first state parameters, the position data of the unloading device and each third state parameter;
the time sequence acquisition module is used for acquiring a starting time sequence based on each first time, each second time, the preparation time of the unloading equipment and each fourth state parameter;
the signal output module is used for outputting a starting signal to corresponding equipment according to a starting time sequence; the activation signal is used to indicate device activation.
A material handling workflow control system comprising: the device comprises a controller, a material taking device, a material discharging device, a plurality of conveying devices and a plurality of auxiliary devices, wherein the material taking device, the material discharging device, the plurality of conveying devices and the plurality of auxiliary devices are all connected with the controller;
the controller is used for executing the steps of the material conveying operation flow control method.
In one embodiment, the controller is a PLC; the conveying equipment is a belt conveyor.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
One of the above technical solutions has the following advantages and beneficial effects:
according to the method and the device, the first time when the material reaches each conveying device and the second time when the material reaches the unloading device are determined according to the first state parameters, the position data of the unloading device and each third state parameter by acquiring the first state parameters of the material taking device, the second state parameters of the unloading device, the third state parameters of a plurality of conveying devices and the fourth state parameters of a plurality of auxiliary devices arranged between any two conveying devices, the starting time sequence is obtained based on each first time, the second time, the preparation time of the unloading device and each fourth state parameter, and therefore the starting signals used for indicating the starting of the device are output to the corresponding devices according to the starting time sequence. According to the method and the device, the starting time of each device in the material conveying operation process can be accurately controlled, the fact that the devices are already in the running state before the materials are about to reach any conveying device, any auxiliary device and discharging device is guaranteed, the flow waiting time is reduced, meanwhile, the energy consumption waste caused by premature starting of the devices is avoided, and the material conveying efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method for controlling a material handling process according to one embodiment;
FIG. 2 is a schematic flow chart diagram of a material handling process control method according to another embodiment;
FIG. 3 is a block diagram of a material handling process control apparatus according to an embodiment;
FIG. 4 is a block diagram of a material handling workflow control system according to an embodiment;
FIG. 5 is a schematic diagram of an exemplary workflow process.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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 application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
In one embodiment, as shown in fig. 1, a material conveying workflow control method is provided, which may include:
202, acquiring a first state parameter of a material taking device, a second state parameter of a material unloading device, a third state parameter of a plurality of conveying devices and a fourth state parameter of a plurality of auxiliary devices arranged between any two conveying devices; the first state parameter may include position data of the material extracting apparatus; the second state parameters may include position data of the discharge apparatus and a preparation time of the discharge apparatus; the third state parameter may include a length of the conveyor apparatus and an operating speed of the conveyor apparatus; the fourth state parameter may include a latency of the secondary device;
step 204, determining a first time for the material to reach each conveying device and a second time for the material to reach the discharging device according to the first state parameters, the position data of the discharging device and each third state parameter;
step 206, obtaining a starting time sequence based on each first time, each second time, the preparation time of the unloading equipment and each fourth state parameter;
step 208, outputting a starting signal to corresponding equipment according to the starting sequence; the activation signal is used to indicate device activation.
The material taking equipment is used for placing materials on the conveying equipment; the conveying equipment is used for conveying the material to the position of the unloading equipment; the unloading equipment is used for loading the materials to the ship loader; the auxiliary device may comprise a flap, a telescopic head or a fixed mechanical structure, the auxiliary device being arranged between any two conveying devices for transferring material from a previous conveying device to a next conveying device. The first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data of the unloading equipment and preparation time of the unloading equipment, and the preparation time of the unloading equipment is the preparation time required by the sequential starting of each mechanism of the cabin moving equipment and the unloading equipment; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter includes the waiting time of the auxiliary device, and the waiting time of the auxiliary device is the time from the time when the last operation instruction occupies the space to the time that the last operation instruction can be controlled by the operation instruction.
Specifically, a first state parameter of the material taking equipment, a second state parameter of the material unloading equipment, a third state parameter of a plurality of conveying equipment on an operation flow line and a fourth state parameter of a plurality of auxiliary equipment arranged between any two conveying equipment are obtained; according to the position data of the material taking equipment, the position data of the discharging equipment and the length and the running speed of the conveying equipment in each third state parameter, the time of the head of the material running from the position of the material taking equipment to each conveying equipment can be determined, namely the first time, and the time of the head of the material running from the position of the material taking equipment to the position of the discharging equipment can also be determined, namely the second time. After the material taking device feeds the material, the first time of the first conveying device may be regarded as 0, the first time of the second conveying device may be a time when the head of the material is conveyed from the feeding position to the tail of the first conveying device (i.e., the head of the second conveying device), and the first time of the third conveying device is a sum of the first time of the second time and a time when the head of the material is conveyed from the head of the second conveying device to the tail of the second conveying device (i.e., the head of the third conveying device), and in the same way, the first times of the remaining conveying devices are also the same; and the second time for the material to reach the tripper device is the sum of the first time for all the conveyor devices and the time for the head of the material to be transported from the tail of the last conveyor device to the position of the tripper device.
And obtaining a starting time sequence based on the first time, the second time, the preparation time of the unloading equipment and the waiting time of the auxiliary equipment in each fourth state parameter, and respectively outputting a starting signal for indicating the equipment to start to the corresponding equipment according to the starting time sequence, so that each equipment is controlled to be in the running state before the material reaches each equipment according to the time of the material reaching each equipment. For example, considering that there is a preparation time for the discharge device, the start signal may be output to the discharge device at the preparation time before the material reaches the position of the discharge device, so that the discharge device can just load and unload the material when the material reaches the position of the discharge device.
According to the method and the device, the first time when the material reaches each conveying device and the second time when the material reaches the unloading device are determined based on the acquired first state parameter of the material taking device, the acquired second state parameter of the unloading device, the acquired third state parameters of the conveying devices and the acquired fourth state parameters of the auxiliary devices arranged between any two conveying devices, the starting time sequence is obtained based on each first time, each second time, the preparation time of the unloading device and each fourth state parameter, and therefore the starting signals are output to the corresponding devices according to the starting time sequence. The preparation time of unloading equipment and the waiting time of auxiliary assembly have been considered comprehensively to this application, can realize being in the running state before the material reaches each equipment, have reduced flow waiting time, have improved material and have transported efficiency, have also avoided each equipment too early start and the energy consumption that causes is extravagant, have practiced thrift the energy.
In one embodiment, the third state parameter may further include a start time of the conveying apparatus and a brake time of the conveying apparatus; the fourth state parameter may further include an action time of the auxiliary device;
the step 206 of obtaining a start timing sequence based on the first time, the second time, the preparation time of the discharging device, and the fourth state parameters may include:
obtaining the starting time of each conveying device, the starting time of each auxiliary device and the starting time of the discharging device on the basis of each first time, each second time, the preparation time of the discharging device, the waiting time of each auxiliary device, the action time of each auxiliary device, the starting time of each conveying device and the braking time of each conveying device; the starting time of the conveying equipment is first starting time after the material taking equipment is started; the starting time of the auxiliary equipment is second starting time after the material taking equipment is started; the starting time of the discharging equipment is the third starting time after the discharging equipment is started.
The starting time of the conveying equipment is the time from the receiving of a starting signal by the conveying equipment to the normal operation of the conveying equipment, and the starting time can be obtained from a system test; the braking time of the conveying equipment is the time from the moment when the conveying equipment receives the signal indicating the sudden stop of the conveying equipment to the moment when the conveying equipment completely stops (the running speed is zero); the action time of the auxiliary equipment is the time of the auxiliary equipment from the current position to the operation station, the auxiliary equipment can comprise a turning plate, a telescopic head and the like, and if the auxiliary equipment is of a fixed structure, the action time of the auxiliary equipment is zero.
Specifically, in the case of acquiring the start sequence, the start time of each conveying device, the start time of each auxiliary device, and the start time of each unloading device may be acquired by considering the start time of the conveying device, the brake time of the conveying device, and the operation time of the auxiliary device, the first time of each output device, the second time of the unloading device, the preparation time of the unloading device, the waiting time of each auxiliary device, the operation time of each auxiliary device, the start time of each conveying device, and the brake time of each conveying device; the starting time of the conveying equipment is first starting time after the material taking equipment is started; the starting time of the auxiliary equipment is second starting time after the material taking equipment is started; the starting time of the discharging equipment is the third starting time after the material taking equipment is started, so that the starting time of each equipment is controlled more accurately.
In addition, the starting time of the conveying equipment is comprehensively considered, so that when the materials arrive at the conveying equipment, the conveying equipment is in a normal running state, and the materials can be conveyed to the next conveying equipment at once; for the auxiliary equipment, the action time of the auxiliary equipment is considered, so when the material is conveyed to the position of the auxiliary equipment, the auxiliary equipment is already positioned at the operation station and is in a normal operation state; further, the braking time of the conveying equipment is considered, so that if the equipment reaches a normal operation state within a planned time due to a certain reason or other abnormal conditions occur, when the conveying equipment receives a signal indicating the sudden stop of the equipment, reasonable buffering time is provided for the sudden stop of the conveying equipment, and the potential safety hazard caused by impact on front-end equipment due to the fact that the conveying equipment cannot stop instantly is avoided.
The starting time of conveying equipment, conveying equipment's braking time and auxiliary assembly's action time have been considered comprehensively to this application, can ensure the material when transporting to each equipment, each equipment has been located normal operation station and is in normal operating condition, promptly when guaranteeing material transport efficiency, the starting time of each equipment has been controlled to the accuracy, the energy has been practiced thrift, and avoided under unusual situation conveying equipment scram can not stop in the twinkling of an eye and cause the condition of assaulting front end equipment, the operation security has been improved greatly.
In one of the embodiments, the first and second electrodes are,
the first start-up time is obtained based on the following model:
an＝Tn-STn-BTn-1
the second start-up time is obtained based on the following model:
bn-1＝Tn-1-BTn-1
the third start-up time is obtained based on the following model:
cm＝Tm-LT-BTn
wherein n is more than or equal to 1; a isnA first start time for the nth conveying apparatus; t isnThe first time when the material reaches the nth conveying equipment; ST (ST)nThe starting time of the nth conveying equipment; BT (BT)n-1The braking time of the n-1 th conveying device; bn-1A second start time for the (n-1) th auxiliary device; t isn-1The first time when the material reaches the (n-1) th conveying equipment; c. CmIs a third start-up time; t ismIs the third time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveyance device.
Specifically, starting signals are respectively output to the corresponding conveying devices at each first starting time after the material taking equipment is started, starting signals are respectively output to the corresponding auxiliary equipment at each second starting time after the material taking equipment is started, and starting signals are output to the discharging equipment at the third starting time after the material taking equipment is started; the first time for the materials to reach each conveying device is TnConsidering the starting time ST of the conveying equipmentnAnd the brake time BT of the previous one of the conveyorsn-1In this case, a first start time a of the transport appliance can be determinedn。
For example, a first time T for the material to reach the first conveyor10, and the first conveyor has no preceding conveyor, then BT0Also 0, and the start time of the first transporting apparatus is ST1Thus, a first start time a of the first conveyor device can be obtained1is-ST1ST before the material taking device is output with the starting signal is described1The time required to send an activation signal to the first conveyor means, i.e. ST before the material-taking means is activated1The first conveying device is started, and when the first conveying device runs normally from the receiving of the starting signal, the material taking device just places the material on the first conveying device. Similarly, the time for the material to reach the second conveying equipment is T2The second transport device is started at a time ST2The braking time of the previous conveyor apparatus of the second conveyor apparatus, i.e., the first conveyor apparatus, is BT1So that a first start time a of the second transport device can be obtained2＝T2-ST2-BT1The first start time of the other delivery devices and so on.
For the auxiliary equipment, because the auxiliary equipment performs the action as the one-time action of non-continuous operation, the problems of energy consumption reduction and efficiency improvement do not exist, the auxiliary equipment directly acts to the next operation station for standby according to the operation instruction plan after one-time operation is finished (namely materials completely pass through the auxiliary equipment), but the auxiliary equipment also needs to meet the braking time BT when the head of the materials reaches the previous conveying equipment of the auxiliary equipment under the condition of ensuring the operation safetyn-1And before the time, ensuring that the auxiliary equipment reaches the operation station, and obtaining second starting time of each auxiliary equipment. A similar procedure is also true for the discharge device.
This application improves the efficiency of material transportation through can be when the start-up time of each equipment in the accurate control material carries the operation flow to the security of operation flow has effectively been improved.
In one embodiment, before the step 206 of obtaining the start timing sequence based on each of the first time, the second time, the preparation time of the discharging device, and each of the fourth state parameters, the method may further include:
based on the first time, the action time of the auxiliary equipment, the waiting time of the auxiliary equipment, the braking time of the conveying equipment and the preparation time of the unloading equipment, if the first feeding condition and the second feeding condition are confirmed to be met, outputting a starting signal to the material taking equipment;
the first feeding conditions were:
bn-1＞PTn-1+BTn-1+WTn-1
the second feeding conditions are as follows:
cm＞LT+BTn
wherein n is more than or equal to 1; bn-1A second start time for the (n-1) th auxiliary device; PTn-1The action time of the (n-1) th auxiliary equipment; BT (BT)n-1The braking time of the n-1 th conveying device; WT (WT)n-1Latency for the n-1 th auxiliary device; c. CmIs a third start-up time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveyance device.
Specifically, the first feeding condition considers that the second starting time after the material taking equipment takes the material needs to be longer than the sum of the action time and the waiting time of the auxiliary equipment needing to be started and the braking time of the previous conveying equipment of the auxiliary equipment, and the second feeding condition considers that the third starting time after the material taking equipment is started needs to be longer than the sum of the preparation time of the material taking equipment and the braking time of the last conveying equipment. Under the condition that the first feeding condition and the second feeding condition are met, all equipment of the whole operation flow line has the automatic operation condition, so that a starting signal is output to the material taking equipment, and the whole automatic operation flow is started.
This application is through setting up the feeding condition, to extracting equipment output start signal under the condition that satisfies the feeding condition to guaranteed that whole material transport operation flow can automatic operation, improved the operating efficiency.
In one embodiment, as shown in fig. 2, after the step 208 of outputting the activation signal to the corresponding device according to the activation sequence, the method may further include:
step 302, if the conveying equipment is not in the running state within the first alarm time after the starting signal is output to the conveying equipment, outputting a first alarm signal; the first alarm signal is used for indicating conveying equipment on the operation flow line and all conveying equipment in front of the conveying equipment to suddenly stop;
step 304, if the auxiliary equipment does not reach the operation station within the second alarm time before the materials reach the auxiliary equipment, outputting a second alarm signal; the second alarm signal is used to indicate that all the conveying equipment in front of the auxiliary equipment on the operation flow line is in emergency stop.
In one example, the first alarm time is a difference between a first time of the delivery device and a start time of the delivery device;
the second alarm time is the brake time of the previous conveying equipment of the auxiliary equipment on the operation flow line.
Specifically, the first alarm time may be set as a difference between the first time of the conveying equipment and the start time of the conveying equipment, and if it is determined that the conveying equipment is not in the operating state within the first alarm time after the start signal is output to the conveying equipment, it indicates that the conveying equipment may malfunction, or the conveying equipment may fail to reach the normal operating state within the first alarm time for some reason, so that the conveying equipment may not normally continue to convey the material.
Similarly, the second alarm time may be set as the brake time of the previous conveyor of the auxiliary device; if it is determined that the auxiliary equipment does not reach the operation station or is in an abnormal operation state within the second alarm time before the material reaches the auxiliary equipment, it is indicated that the auxiliary equipment does not meet the requirement of normal operation, and the material may not be processed in the next step in time after the material reaches, so that the safety risk of the material transportation operation process is caused.
In the above, the starting sequence is obtained based on the first state parameter of the material taking device, the second state parameter of the discharging device, the third state parameters of the conveying devices and the fourth state parameters of the auxiliary devices arranged between any two conveying devices, the first time when the material reaches each conveying device and the second time when the material reaches the discharging device are determined, and the braking time of the conveying device, the starting time of the conveying device, the action time of the auxiliary devices and the like are integrated based on the first time and the second time; corresponding feeding conditions are set, and the material taking equipment can take materials only under the condition that the feeding conditions are met, so that automatic operation is performed; and this application has set up first alarm signal and second alarm signal for avoid equipment under the condition that does not reach normal operating condition, control corresponding conveying equipment scram. This application has practiced thrift the energy consumption in the efficiency that has improved material transport, can realize the accurate control to each equipment start-up time, has guaranteed that the material is when arriving each equipment, and each equipment has reached normal operating condition, has also avoided the too early start-up of equipment to this application can be in equipment not reach corresponding safeguard measure of execution under the condition of normal operating condition, has effectively improved the security.
It should be understood that, although the steps in the flowcharts of fig. 1 and 2 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in fig. 1 and 2 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.
In one embodiment, as shown in fig. 3, there is provided a material conveying workflow control apparatus, which may include:
the data acquisition module 110 is configured to acquire a first state parameter of a material taking device, a second state parameter of a material unloading device, a third state parameter of a plurality of conveying devices, and a fourth state parameter of a plurality of auxiliary devices arranged between any two conveying devices; the first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data of the discharging equipment and preparation time of the discharging equipment; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter includes a latency of the auxiliary device;
the time obtaining module 120 is configured to determine, according to the first state parameter, the position data of the discharging device, and each third state parameter, a first time when the material reaches each conveying device and a second time when the material reaches the discharging device;
the time sequence obtaining module 130 is configured to obtain a start time sequence based on each first time, each second time, the preparation time of the unloading device, and each fourth state parameter;
a signal output module 140, configured to output a start signal to a corresponding device according to a start timing sequence; the activation signal is used to indicate device activation.
In one embodiment, the third state parameter may further include a start time of the conveying apparatus and a brake time of the conveying apparatus; the fourth state parameter may further include an action time of the auxiliary device;
the time sequence acquisition module is further used for acquiring the starting time of each conveying device, the starting time of each auxiliary device and the starting time of the unloading device on the basis of each first time, each second time, the preparation time of the unloading device, the waiting time of each auxiliary device, the action time of each auxiliary device, the starting time of each conveying device and the braking time of each conveying device; the starting time of the conveying equipment is first starting time after the material taking equipment is started; the starting time of the auxiliary equipment is second starting time after the material taking equipment is started; the starting time of the discharging equipment is the third starting time after the discharging equipment is started.
In one of the embodiments, the first and second electrodes are,
the first start-up time is obtained based on the following model:
an＝Tn-STn-BTn-1
the second start-up time is obtained based on the following model:
bn-1＝Tn-1-BTn-1
the third start-up time is obtained based on the following model:
cm＝Tm-LT-BTn
wherein n is more than or equal to 1; a isnA first start time for the nth conveying apparatus; t isnThe first time when the material reaches the nth conveying equipment; ST (ST)nThe starting time of the nth conveying equipment; BT (BT)n-1The braking time of the n-1 th conveying device; bn-1A second start time for the (n-1) th auxiliary device; t isn-1The first time when the material reaches the (n-1) th conveying equipment; c. CmIs a third start-up time; t ismIs the third time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveyance device.
In one embodiment, the material conveying operation flow control device may further include:
the material taking equipment signal output module is used for outputting a starting signal to the material taking equipment if the first time, the action time of the auxiliary equipment, the waiting time of the auxiliary equipment, the braking time of the conveying equipment and the preparation time of the discharging equipment are confirmed to meet the first feeding condition and the second feeding condition;
the first feeding conditions were:
bn-1＞PTn-1+BTn-1+WTn-1
the second feeding conditions are as follows:
cm＞LT+BTn
wherein n is more than or equal to 1; bn-1A second start time for the (n-1) th auxiliary device; PTn-1The action time of the (n-1) th auxiliary equipment; BT (BT)n-1The braking time of the n-1 th conveying device; WT (WT)n-1Latency for the n-1 th auxiliary device; c. CmIs a third start-up time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveyance device.
In one embodiment, the material conveying operation flow control device may further include:
the alarm signal output module is used for outputting a first alarm signal if the conveying equipment is not in the running state within first alarm time after the starting signal is output to the conveying equipment; the first alarm signal is used for indicating conveying equipment on the operation flow line and all conveying equipment in front of the conveying equipment to suddenly stop; the alarm signal output module is also used for outputting a second alarm signal if the auxiliary equipment does not reach the operation station within second alarm time before the materials reach the auxiliary equipment; the second alarm signal is used to indicate that all the conveying equipment in front of the auxiliary equipment on the operation flow line is in emergency stop.
In one embodiment, the first alarm time is the difference between the first time of the delivery apparatus and the start time of the delivery apparatus;
the second alarm time is the brake time of the previous conveying equipment of the auxiliary equipment on the operation flow line.
For specific limitations of the material conveying operation flow control device, reference may be made to the above limitations of the material conveying operation flow control method, which will not be described herein again. All modules in the material conveying operation flow control device can be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In one embodiment, as shown in fig. 4, a material handling workflow control system is provided, which may include: the device comprises a controller, a material taking device, a material discharging device, a plurality of conveying devices and a plurality of auxiliary devices, wherein the material taking device, the material discharging device, the plurality of conveying devices and the plurality of auxiliary devices are all connected with the controller;
the controller is used for executing the steps of the material conveying operation flow control method.
In one example, the Controller may be a PLC (Programmable Logic Controller); the conveying device can be a belt conveyor.
Wherein, the material can be the coal material, and the material equipment of getting, the equipment of unloading, each belt feeder and each auxiliary assembly all locate the operation flow line, and the operation flow line can be as shown in fig. 5.
Specifically, the PLC performs corresponding processing to obtain a starting time sequence under the condition of acquiring a first state parameter of the material taking equipment, a second state parameter of the material unloading equipment, a third state parameter of each belt conveyor and a fourth state parameter of each auxiliary equipment, and outputs a starting signal to the corresponding equipment according to the starting time sequence; and starting the equipment to operate under the condition of receiving the starting signal, so as to finish the material conveying operation.
The material conveying operation flow control system obtains a first state parameter of material equipment, a second state parameter of unloading equipment, a third state parameter of a plurality of conveying equipment and a plurality of fourth state parameters of auxiliary equipment arranged between any two conveying equipment through the PLC, processes to obtain a starting time sequence, and accordingly outputs starting signals according to the starting time sequence and each equipment is started to operate after receiving the starting signals. The material conveying operation flow system can accurately control the starting time of the material taking equipment, the starting time of the belt conveyor, the starting time of the auxiliary equipment and the starting time of the material discharging equipment, ensures that the belt conveyor is started and operated in advance before materials are about to reach the belt conveyor, avoids energy consumption waste caused by too early starting of the belt conveyor, effectively improves the conveying efficiency of the materials, and can also ensure the safety of the operation process.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A material conveying operation flow control method is characterized by comprising the following steps:
acquiring a first state parameter of material taking equipment, a second state parameter of material unloading equipment, a third state parameter of a plurality of conveying equipment and a fourth state parameter of a plurality of auxiliary equipment arranged between any two conveying equipment; the first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data of the discharging device and preparation time of the discharging device; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter comprises a latency of the secondary device;
determining a first time for the material to reach each of the conveying devices and a second time for the material to reach the discharge device according to the first state parameter, the position data of the discharge device and each of the third state parameters;
obtaining a starting time sequence based on each first time, each second time, the preparation time of the unloading equipment and each fourth state parameter;
outputting a starting signal to corresponding equipment according to the starting time sequence; the start signal is used to instruct the device to start.
2. The material conveying workflow control method of claim 1 wherein the third state parameter further comprises a start time of the conveying apparatus and a brake time of the conveying apparatus; the fourth state parameter further comprises an action time of the auxiliary device;
the step of obtaining a start timing sequence based on each of the first time, the second time, the preparation time of the discharging device, and each of the fourth state parameters includes:
obtaining a start time of each of the conveying devices, a start time of each of the auxiliary devices, and a start time of the discharging device based on each of the first time, the second time, a preparation time of the discharging device, a waiting time of each of the auxiliary devices, an operating time of each of the auxiliary devices, a start time of each of the conveying devices, and a braking time of each of the conveying devices; the starting time of the conveying equipment is first starting time after the material taking equipment is started; the starting time of the auxiliary equipment is second starting time after the material taking equipment is started; and the starting time of the unloading equipment is the third starting time after the material taking equipment is started.
3. The material conveying work flow control method according to claim 2,
the first start time is obtained based on the following model:
an＝Tn-STn-BTn-1
the second start-up time is derived based on the following model:
bn-1＝Tn-1-BTn-1
the third start time is obtained based on the following model:
cm＝Tm-LT-BTn
wherein n is more than or equal to 1; a isnThe first start time for the nth conveying apparatus; t isnThe first time when the material reaches the nth conveying equipment; ST (ST)nThe starting time of the nth conveying equipment; BT (BT)n-1The braking time of the n-1 th conveying device; bn-1The second start time for the (n-1) th auxiliary device; t isn-1The first time when the material reaches the (n-1) th conveying equipment; c. CmIs the third start time; t ismIs the third time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveying device.
4. The method of claim 2, wherein the step of obtaining a start-up sequence based on each of the first time, the second time, the preparation time of the discharge device, and each of the fourth state parameters is preceded by the step of:
based on each first time, the action time of the auxiliary equipment, the waiting time of the auxiliary equipment, the braking time of the conveying equipment and the preparation time of the unloading equipment, if the first feeding condition and the second feeding condition are confirmed to be met, outputting the starting signal to the unloading equipment;
the first feeding conditions are as follows:
bn-1＞PTn-1+BTn-1+WTn-1
the second feeding conditions are as follows:
cm＞LT+BTn
wherein n is more than or equal to 1; bn-1The second start time for the (n-1) th auxiliary device; PTn-1The action time of the (n-1) th auxiliary equipment; BT (BT)n-1The braking time of the n-1 th conveying device; WT (WT)n-1Latency for the (n-1) th said auxiliary device; c. CmIs the third start time; LT is the preparation time of the unloading equipment; BT (BT)nThe braking time of the nth conveying device.
5. The method of claim 2, wherein the step of outputting the activation signal to the corresponding device according to the activation sequence is followed by the step of:
if the conveying equipment is not in the running state within the first alarm time after the starting signal is output to the conveying equipment, outputting a first alarm signal; the first alarm signal is used for indicating the conveying equipment on the operation flow line and all conveying equipment in front of the conveying equipment to suddenly stop;
if the auxiliary equipment does not reach the operation station within second alarm time before the materials reach the auxiliary equipment, outputting a second alarm signal; the second alarm signal is used for indicating that all conveying equipment in front of the auxiliary equipment on the operation flow line is in emergency stop.
6. The material conveying work flow control method according to claim 5, characterized in that the first alarm time is a difference value between a first time of the conveying equipment and a starting time of the conveying equipment;
the second alarm time is the brake time of the previous conveying equipment of the auxiliary equipment on the operation flow line.
7. A material conveying operation flow control device is characterized by comprising:
the data acquisition module is used for acquiring a first state parameter of the material taking equipment, a second state parameter of the material unloading equipment, a third state parameter of the plurality of conveying equipment and a fourth state parameter of the plurality of auxiliary equipment arranged between any two conveying equipment; the first state parameter comprises position data of the material taking equipment; the second state parameters comprise position data of the discharging device and preparation time of the discharging device; the third state parameter comprises the length of the conveying equipment and the running speed of the conveying equipment; the fourth state parameter comprises a latency of the secondary device;
the time obtaining module is used for determining first time for the materials to reach the conveying devices and second time for the materials to reach the discharging devices according to the first state parameters, the position data of the discharging devices and the third state parameters;
the time sequence acquisition module is used for acquiring a starting time sequence based on the first time, the second time, the preparation time of the unloading equipment and the fourth state parameters;
the signal output module is used for outputting a starting signal to corresponding equipment according to the starting time sequence; the start signal is used to instruct the device to start.
8. A material handling workflow control system, comprising: the device comprises a controller, material taking equipment, material discharging equipment, a plurality of conveying equipment and a plurality of auxiliary equipment arranged between any two conveying equipment, wherein the material taking equipment, the material discharging equipment and the plurality of conveying equipment are all connected with the controller;
the controller is configured to perform the steps of the material handling workflow control method according to any one of claims 1 to 6.
9. The material conveying workflow control method according to claim 8, wherein the controller is a PLC; the conveying equipment is a belt conveyor.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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