CN114536563A - Unloading control method and mixing station - Google Patents
Unloading control method and mixing station Download PDFInfo
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- CN114536563A CN114536563A CN202210186901.9A CN202210186901A CN114536563A CN 114536563 A CN114536563 A CN 114536563A CN 202210186901 A CN202210186901 A CN 202210186901A CN 114536563 A CN114536563 A CN 114536563A
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 claims abstract description 166
- 238000007599 discharging Methods 0.000 claims abstract description 130
- 230000009471 action Effects 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000004590 computer program Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
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- 230000001960 triggered effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides a discharging control method and a mixing station. The unloading control method is applied to a mixing station, the mixing station comprises an unloading detection device, and the unloading control method comprises the following steps: acquiring a detection signal of the unloading detection device; determining the unloading detection signal intensity based on the detection signal; and controlling the action of a discharging door of the mixing plant based on the discharging detection signal intensity. According to the discharging control method, the detection signal of the discharging detection device is acquired, the discharging detection signal intensity is determined based on the detection signal, and the flow change condition at the discharging door can be judged according to the discharging detection signal intensity, so that the discharging door action is controlled based on the discharging detection signal intensity, the switching time of the discharging door can be automatically determined, the automatic control of the discharging door is realized, the switching time of the discharging door is convenient to grasp, and the requirements of discharging safety and stability and shortening of discharging time are met in an automatic control mode.
Description
Technical Field
The invention relates to the technical field of mixing stations, in particular to a discharging control method and a mixing station.
Background
When the mixing plant is used for discharging, the opening adjustment of the discharging door is crucial to the service life and the discharging time control of the mixing plant. For example, if the discharge flow rate at the discharge gate is large, the discharge impact load is large, and the service life of the components such as the discharge gate of the mixing plant is likely to be reduced. If the discharge door is closed too early, the material sealing of the mixing plant can be caused, and if the discharge door is closed too late, the discharging time can be too long.
Therefore, in the related art, the opening degree is often adjusted by manually and empirically controlling the discharge door. However, this method is inconvenient to grasp the switching time of the discharge door, and has low efficiency and relatively high labor cost.
Disclosure of Invention
The invention aims to solve the problems that manual adjustment of the discharge door is low in efficiency and the switching time of the discharge door is inconvenient to master to a certain extent.
To solve or improve the above problem at least to a certain extent, a first aspect of the present invention provides a discharge control method applied to a mixing station, where the mixing station includes a discharge detection device, and the discharge control method includes:
acquiring a detection signal of the unloading detection device;
determining the unloading detection signal intensity based on the detection signal;
and controlling the action of a discharging door of the mixing plant based on the discharging detection signal intensity.
Optionally, the discharge detection device comprises one or more sensors disposed toward the discharge area of the discharge gate, and the signal intensity of the detection signal of the sensor corresponds to the discharge flow rate of the discharge gate;
the determining the unloading detection signal strength based on the detection signal comprises:
determining the discharge detection signal strength based on the signal strength of the detection signal of one or more of the sensors.
Optionally, the discharge detection device comprises a plurality of sensors arranged towards a discharge area of the discharge door, the plurality of sensors are positioned at one side of the discharge area, and the plurality of sensors are distributed at intervals;
the sensor sends out a preset signal when detecting the material, and the sensor does not send out a signal or sends out another preset signal when not detecting the material; the determining the unloading detection signal strength based on the detection signal comprises:
and determining the unloading detection signal intensity based on the number of the preset signals.
Optionally, the controlling the discharging door action based on the discharging detection signal strength includes:
when the unloading detection signal intensity is smaller than the preset signal intensity, controlling the unloading door to move from a first state to a second state;
the first state and the second state are two adjacent states sequentially reached by the discharging door in the discharging process respectively, and the two adjacent states are selected from combinations of adjacent states in a half-open state, a full-open state and a closed state sequentially reached.
Optionally, when the discharging detection signal strength is smaller than a preset signal strength, the controlling the discharging door to move from the first state to the second state includes:
and when the discharging detection signal intensity is smaller than a preset signal intensity and the duration of the discharging door in the first state is greater than or equal to the duration of the preset first state, controlling the discharging door to move from the first state to the second state.
Optionally, the step of detecting that the discharge detection signal strength is smaller than the preset signal strength includes:
the duration that the unloading detection signal intensity is smaller than the preset signal intensity is larger than or equal to a first preset duration.
Optionally, the unloading control method further includes an adjusting step, where the adjusting step includes:
when the first time length and the preset first state time length meet a preset condition, adjusting the preset first state time length according to the difference value of the preset first state time length and the first time length;
when the first time length and the preset first state time length do not meet the preset condition, keeping the preset first state time length unchanged;
wherein the starting time of the first duration is: the discharge door reaches the starting moment of the first state, and the ending moment of the first duration is as follows: and the unloading detection signal intensity is smaller than the starting moment of the preset signal intensity.
Optionally, when the first time length and the preset first state time length satisfy a preset condition, adjusting the preset first state time length according to a difference between the preset first state time length and the first time length includes: and when the first time length is less than the preset first state time length, reducing the preset first state time length according to the difference value between the preset first state time length and the first time length.
Optionally, before controlling the discharge door to move based on the discharge detection signal strength, the discharge control method further includes:
acquiring production information;
and acquiring configuration information matched with the production information, wherein the configuration information comprises the preset first state duration.
Optionally, the obtaining configuration information matched with the production information includes: acquiring the configuration information matched with the production information from a database;
after the adjusting step, the discharge control method further includes: and updating the adjusted preset first state duration to the database.
According to the discharging control method, the detection signal of the discharging detection device is obtained, the discharging detection signal intensity is determined based on the detection signal, and the flow change condition at the discharging door can be judged according to the discharging detection signal intensity, so that the discharging door is controlled to act based on the discharging detection signal intensity, and the switching time of the discharging door can be automatically determined. For example, in the process of opening the discharging door, when the discharging flow reflected by the discharging detection signal strength is too large, which may cause too large impact load, the opening degree of the discharging door can be controlled to be reduced, and when the discharging flow reflected by the discharging detection signal strength is too small, the opening degree of the discharging door can be increased, so that the overlong discharging time caused by too small discharging flow is avoided; the discharging control method of the invention realizes the automatic control of the discharging door, avoids the low efficiency caused by manual operation, is convenient to grasp the switching time of the discharging door, and makes the requirements of considering the safety and stability of discharging and shortening the discharging time in an automatic control mode possible.
In a second aspect, the present invention provides a mixing station comprising:
the discharging detection device is arranged towards the discharging area of the discharging door;
a controller for implementing the discharge control method as described above in the first aspect.
Drawings
FIG. 1 is a flow chart of a discharge control method in an embodiment of the present invention;
FIG. 2 is a schematic illustration of a closed discharge door of a mixing station in an embodiment of the present invention;
FIG. 3 is another schematic view of the mixing station of FIG. 2;
FIG. 4 is a schematic illustration of an embodiment of the present invention with the discharge door of the mixing station in an open position;
FIG. 5 is another schematic illustration of the mixing station of FIG. 4;
fig. 6 is a flow chart of a discharge control method in a further embodiment of the present invention.
Description of the reference numerals
1-stirring host, 2-discharging door, 3-discharging detection device and 4-driving mechanism.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present specification, it should be noted that the term "connected" is to be interpreted broadly, e.g., as a fixed connection or a detachable connection, unless explicitly stated or limited otherwise. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In the description herein, references to "an embodiment," "one embodiment," "some embodiments," "exemplary," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or embodiment. The above schematic representations do not necessarily refer to the same embodiment or implementation. The particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.
In the drawings of the specification, an XYZ coordinate system is provided, the Z axis represents a vertical direction, that is, an up-down position, and a positive direction of the Z axis (that is, an arrow direction of the Z axis) represents an up direction, and a negative direction of the Z axis (that is, a direction opposite to the positive direction of the Z axis) represents a down direction; in the drawings, the X-axis represents a horizontal direction and is designated as a left-right position, and a positive direction of the X-axis (i.e., an arrow direction of the X-axis) represents a right side and a negative direction of the X-axis (i.e., a direction opposite to the positive direction of the X-axis) represents a left side; in the drawings, the Y-axis indicates the front-rear position, and the positive direction of the Y-axis (i.e., the arrow direction of the Y-axis) indicates the front side, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) indicates the rear side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis representations are merely intended to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
As shown in fig. 1, an embodiment of the present invention provides a discharge control method, which is applied to a mixing station, where the mixing station includes a discharge detection device 3, and the discharge control method includes:
s1, acquiring a detection signal of the discharging detection device 3;
s2, determining the unloading detection signal strength based on the detection signal;
and S3, controlling the action of the discharging door 2 of the mixing plant based on the discharging detection signal intensity.
As shown in fig. 2 to 5, the mixing plant includes a mixing main machine 1, a discharge door 2 and a driving mechanism 4 are arranged at the bottom of the mixing main machine 1, one end of the driving mechanism 4 is connected with the mixing main machine 1, and the other end is connected with the discharge door 2, and is used for driving the discharge door 2 to move and open or close. Illustratively, the driving mechanism 4 comprises a telescopic cylinder and a swing arm, the upper end of the telescopic cylinder is hinged to the stirring main machine 1, the lower end of the telescopic cylinder is in driving connection with the discharge door 2 through the swing arm, the discharge door 2 is driven to open or close through the telescopic motion of the telescopic cylinder, and the opening degree of the discharge door 2 is adjusted through different telescopic states of the telescopic cylinder, which will not be described in detail herein.
The discharge detection device 3 can detect the discharge state, and the detection signal of the discharge detection device 3 can reflect the discharge state of the discharge gate 2. For example, the presence or absence of material passing may be reflected, or the discharge flow rate may be reflected. Therefore, the unloading detection signal strength determined according to the detection signal can reflect the size of the unloading flow to a certain extent, namely the unloading detection signal strength is related to the unloading flow at the unloading door 2, and when the unloading detection signal strength changes, the unloading detection signal strength can reflect that the unloading flow also changes. However, in actual operation, the specific discharge flow rate need not be calculated, and the case of the discharge detecting device 3 will be described in detail later.
According to the unloading control method, the detection signal of the unloading detection device 3 is acquired, the unloading detection signal intensity is determined based on the detection signal, and the flow change condition at the unloading door 2 can be judged according to the unloading detection signal intensity, so that the action of the unloading door 2 is controlled based on the unloading detection signal intensity, and the switching time of the unloading door 2 can be automatically determined. For example, in the process of opening the discharge door 2, when the discharge flow reflected by the discharge detection signal strength is too large, which may cause too large impact load, the opening degree of the discharge door 2 may be controlled to decrease, and when the discharge flow reflected by the discharge detection signal strength is too small, the opening degree of the discharge door 2 may be increased, which avoids too long discharge time caused by too small discharge flow; the discharging control method of the invention realizes the automatic control of the discharging door, avoids the low efficiency caused by manual operation, is convenient to grasp the switching time of the discharging door 2, and makes the requirements of considering the safety and stability of discharging and shortening the discharging time in an automatic control mode possible.
In an optional embodiment of the invention, the discharge detection device comprises one or more sensors arranged towards a discharge area of the discharge door, and the signal intensity of detection signals of the sensors corresponds to the discharge flow of the discharge door;
the determining the unloading detection signal strength based on the detection signal comprises:
determining the discharge detection signal strength based on the signal strength of the detection signal of one or more of the sensors.
The sensor is exemplarily a distance sensor, which is located at one side below the discharge gate 2, and is disposed at a main building frame of the mixing station (or may be disposed at another frame, such as a frame independently supported on the ground), and is disposed toward a discharge area of the discharge gate 2, and the discharge condition at the discharge gate 2 can be fed back by a detection signal of the sensor.
Illustratively, the discharge gate 2 includes a shaft extending along the length of the discharge gate 2, and a plurality of the sensors are spaced apart (equidistantly or non-equidistantly) along the shaft.
The detection signal of the sensor is an analog quantity, and the signal strength of the detection signal of the sensor can be represented by the magnitude of the analog quantity. When the detected materials are relatively more (namely the discharging flow is large), the signal intensity of the detection signal of the sensor is large, and when the detected materials are relatively less (namely the discharging flow is small), the signal intensity of the detection signal of the sensor is small.
When the discharge detection device includes a plurality of sensors, the detection signal of the discharge detection device includes detection signals of the plurality of sensors, and at this time, determining the discharge detection signal strength based on the signal strengths of the detection signals of the plurality of sensors may include any one of the following cases:
the first condition is as follows: and determining the unloading detection signal intensity according to the number of the sensors with the detection signal intensity larger than the preset sensor signal intensity.
For example, the total number of sensors is M, and the number of sensors whose detection signals have signal strengths greater than the preset sensor signal strength is N, where M is an integer greater than 1, and N is an integer greater than or equal to 0 and less than or equal to M; and taking the ratio of N to M as the unloading detection signal intensity.
Case two: and determining the unloading detection signal strength according to the sum of the signal strengths of the detection signals of the plurality of sensors.
For example, the discharge detection signal strength is determined from the sum of the analog quantities of the detection signals of the plurality of sensors. In this case, the unload detection signal intensity can be obtained by quantifying the unload flow rate to some extent by the sum of the signal intensities.
Therefore, the discharging detection device is set to comprise one or more sensors, and the intensity of the detection signals of the sensors corresponds to the discharging flow of the discharging door, so that the discharging detection signal intensity capable of reflecting the discharging flow can be determined according to the detection signals of the one or more sensors, the reliability is high, and the practicability is high. And, the mode of setting up of sensor need not to calculate or monitor the information of the comparatively accurate 2 department discharge flow of unloading of discharge door, for the scheme of unloading such as weighing sensor, can reduce to a certain extent and reform transform the degree of difficulty with maintaining, especially can reduce the degree of difficulty that the automation scheme of the present stirring station that does not have the automatic control foundation of unloading reforms transform.
In another optional embodiment of the present invention, the discharging detection device comprises a plurality of sensors disposed towards the discharging area of the discharging door, a plurality of the sensors are located at one side of the discharging area, and a plurality of the sensors are distributed at intervals;
the sensor sends out a preset signal when detecting the material, and the sensor does not send out a signal or sends out another preset signal when not detecting the material; the determining the unloading detection signal strength based on the detection signal comprises:
and determining the unloading detection signal intensity based on the number of the preset signals.
Illustratively, the total number of the sensors is M, and the number of the preset signals is N, where M is an integer greater than 1, and N is an integer greater than or equal to 0 and less than or equal to M; and taking the ratio of N to M as the unloading detection signal intensity.
For example, the sensor is a correlation sensor, and sends out a first preset signal when the material is detected and sends out a second preset signal when the material is not detected.
The ratio of the number of the first preset signals to the total number of the sensors may be determined as the discharge detection signal strength.
The plurality of sensors may or may not be equally spaced and will not be described in detail herein.
In this way, the sensors are distributed at intervals, and because the sensors send out preset signals when detecting materials, the sensors do not send out signals or send out another preset signal when not detecting materials, the unloading detection signal strength capable of reflecting the unloading flow to a certain extent can be determined by the condition that the sensors are triggered, and the detailed description is omitted here.
In an optional embodiment of the present invention, the controlling the action of the discharging door 2 based on the discharging detection signal strength includes:
when the unloading detection signal intensity is smaller than the preset signal intensity, controlling the unloading door 2 to move from a first state to a second state;
the first state and the second state are two adjacent states sequentially reached by the discharging door 2 in the discharging process respectively, and the two adjacent states are selected from combinations of adjacent states in a half-open state, a full-open state and a closed state sequentially reached.
That is to say, the first state and the second state are half-open state and full-open state respectively, or the first state and the second state are full-open state and closed state respectively, which may of course also include the above two cases, but it should be noted that the preset signal strengths in the above two cases are different, for example, when the first state is half-open state, the corresponding preset signal strength is the first preset signal strength, and when the first state is full-open state, the corresponding preset signal strength is the second preset signal strength.
It should be noted that the half-open state is not limited to the opening degree of the discharge door 2 being half of the opening degree in the fully-open state, and may be determined according to actual needs, for example, one-third opening degree and two-thirds opening degree. In some embodiments, the opening degree of the discharge door 2 corresponding to the half-open state is determined according to production information, and will not be described in detail herein.
Thus, according to the unloading control method provided by the invention, the unloading detection signal strength determined according to the detection signal of the unloading detection device 3 can reflect the unloading flow at the unloading gate 2 through the unloading detection signal strength, when the unloading detection signal strength is smaller than the preset signal strength, the unloading flow at the unloading gate 2 starts to decrease and reaches the preset reduction state, and at the moment, the unloading gate 2 is controlled to be switched from the first state to the second state, so that the action time of the unloading gate 2 in the unloading process can be automatically and effectively judged, and the unloading speed and the unloading stability can be considered. The first state is half-opened, the second state is full-opened as an example, when the discharging detection signal intensity is smaller than the corresponding first preset signal intensity when the discharging flow at the discharging door 2 is reduced, the discharging door 2 is controlled to move to the full-opened state, the discharging of residual materials in the stirring host 1 can be accelerated, the discharging time overlong caused by too slow discharging speed of the residual materials in the stirring host 1 is avoided, the discharging time can be shortened to a certain extent, and the discharging amount and the impact amount caused by too early time for switching the discharging door 2 to the full-opened state can be avoided to be large.
The content of the present invention will be described hereinafter by taking a case where the first state includes a half-open state and the second state includes a fully-open state as an example.
In an alternative embodiment of the present invention, said controlling the discharging door 2 to move from the first state to the second state when the discharging detection signal strength is smaller than the preset signal strength comprises:
and when the discharging detection signal intensity is smaller than the preset signal intensity and the duration of the discharging door 2 in the first state is greater than or equal to the preset duration of the first state, controlling the discharging door 2 to move from the first state to the second state.
Illustratively, when the discharging detection signal intensity is less than a first preset signal intensity and the duration of the half-open state of the discharging door 2 is greater than or equal to a preset half-open state duration Tb, the discharging door 2 is controlled to move from the half-open state to the full-open state.
The preset half-open state time length Tb can be set manually or obtained through a database.
So, can filter the condition that the detection signal intensity of unloading is less than the misjudgement of predetermineeing signal intensity to a certain extent, can improve the accuracy that 2 switching of discharge door were judged to a certain extent. For example, only when the discharge door 2 is in the duration of half-open state is greater than or equal to the preset half-open state duration Tb, and the discharge detection signal intensity is less than the first preset signal intensity, that is to say, only theoretically the discharge flow of the discharge door 2 begins to decrease, and when the discharge detection signal intensity meets the first preset signal intensity, the discharge door 2 is controlled to move from the half-open state to the full-open state, the condition that the discharge detection signal intensity is less than the misjudgment of the first preset signal intensity can be filtered to a certain extent, the accuracy of the switching time of the discharge door 2 from the half-open state to the full-open state can be improved to a certain extent, the time of opening the discharge door 2 to the full-open state can be accurately found, and the reliability of the discharge control method is high.
Further, the step of discharging the material with the detection signal intensity smaller than the preset signal intensity comprises: the duration that the unloading detection signal intensity is smaller than the preset signal intensity is larger than or equal to a first preset duration.
For example, the unloading detection signal strength being smaller than the first preset signal strength includes: the duration that the unloading detection signal intensity is smaller than the first preset signal intensity is greater than or equal to a second preset duration, for example, the second preset duration is 0.5 second.
Therefore, the discharge door can be controlled to be switched only when the discharge detection signal intensity is smaller than the preset signal intensity and the discharge detection signal intensity is smaller than the preset signal intensity, the duration of the preset signal intensity is longer than or equal to a first preset duration, the condition that the discharge detection signal intensity data generate errors can be further filtered, the switching time of the discharge door 2 is more accurate, and the reliability is high.
Further, the unloading control method further comprises an adjusting step, wherein the adjusting step comprises the following steps:
when the first time length and the preset first state time length meet a preset condition, adjusting the preset first state time length according to the difference value of the preset first state time length and the first time length;
when the first time length and the preset first state time length do not meet the preset condition, keeping the preset first state time length unchanged;
wherein the starting time of the first duration is: the discharging door 2 reaches the starting moment of the first state, and the ending moment of the first time length is as follows: and the unloading detection signal intensity is smaller than the starting moment of the preset signal intensity.
So, can judge the long rationality of presetting the first state according to the relation when first time is long and predetermine the first state to judge whether need to adjust when presetting the first state, can predetermine the first state according to the actual condition of unloading door 2 department and long to reasonable value when adjusting, thereby avoid presetting the total time of unloading that the long overlength of first state leads to unloading door 2 to switch late and lead to overlength.
Taking the switching of the discharge door 2 from the half-open state to the full-open state as an example: when the discharge door 2 is in a half-open state, and when a second time length Tc and the preset half-open state time length Tb meet a first preset condition, adjusting the preset half-open state time length Tb according to the difference value of the preset half-open state time length Tb and the second time length Tc;
when the second time length Tc and the preset half-open state time length Tb do not meet the first preset condition, keeping the preset half-open state time length Tb unchanged;
wherein, the starting time of the second time length Tc is: the discharging door 2 reaches the starting time of the half-open state, and the ending time of the second time length Tc is as follows: and the unloading detection signal intensity is smaller than the starting moment of the first preset signal intensity.
So, can judge the rationality of predetermineeing the long Tb of half-open state according to the long Tc of second and predetermine the long Tb of half-open state to judge whether need adjust predetermineeing the long Tb of half-open state, can predetermine long Tb to reasonable value of half-open state according to the actual condition of unloading of discharge door 2 department adjustment, thereby avoid predetermineeing the long Tb overlength of half-open state and lead to discharging door 2 and switch the total time overlength of unloading that leads to late.
Illustratively, when the first duration and the preset first state duration satisfy a preset condition, adjusting the preset first state duration according to a difference between the preset first state duration and the first duration includes: and when the first time length is less than the preset first state time length, reducing the preset first state time length according to the difference value between the preset first state time length and the first time length.
The switching from the half-on state to the full-on state is also taken as an example.
The preset conditions include: the second time Tc is less than the preset half-open state time Tb;
in this case, the adjusting step may specifically include:
when the second time length Tc is less than the preset half-open state time length Tb, reducing the preset half-open state time length Tb according to the difference value between the preset half-open state time length Tb and the second time length Tc;
and when the second time length Tc is greater than or equal to the preset half-open state time length Tb, keeping the preset half-open state time length Tb unchanged.
For example, the preset half-open state time period Tb is reduced by a first amplitude, the first amplitude is a times of a difference between the preset half-open state time period Tb and the second time period Tc, and a is in a range of 0.2 to 0.7, for example, 0.3 to 0.6, for example, 0.5. That is to say, when the discharging detection signal intensity is smaller than the first preset signal intensity, and the second time period Tc when the discharging door 2 is in the half-open state does not reach the preset half-open state time period Tb yet, it indicates that the preset half-open state time period Tb is too long, and therefore, the reduction of the preset half-open state time period Tb is considered.
It should be noted that, if the preset half-open state duration Tb is adjusted, the second duration Tc obtained in real time is less than the adjusted preset half-open state duration Tb, the discharging control is continued according to the adjusted preset half-open state duration Tb, and if the second duration Tc obtained in real time is greater than or equal to the preset half-open state duration Tb before adjustment in the adjustment process of the preset half-open state duration Tb, the discharging door 2 is directly controlled to move to the fully open state when the switching conditions are met, and under various conditions, the adjusted preset half-open state duration Tb is recorded and can be used for the next discharging control.
Exemplarily, the adjusting step specifically includes:
judging whether the absolute value of the difference value between the preset half-open state time length Tb and the second time length Tc is greater than a preset value or not, if not, keeping the preset half-open state time length Tb unchanged, if so, reducing the preset half-open state time length Tb according to the absolute value when the second time length Tc is less than the preset half-open state time length Tb, and increasing the preset half-open state time length Tb according to the absolute value when the second time length Tc is greater than the preset half-open state time length Tb.
For example, the preset value is b times the second preset time period described above, and the value of b is generally greater than or equal to 1, e.g., 1 to 20, 1 to 6, e.g., 3. The manner of increasing or decreasing the preset half-open state duration Tb may be similar to that in the other embodiment, and will not be described in detail here.
In the above embodiment, before controlling the discharge door 2 to operate based on the discharge detection signal strength, the discharge control method further includes:
acquiring production information;
and acquiring configuration information matched with the production information, wherein the configuration information comprises the preset first state duration. The configuration information may further include the first state and the second state
For example, before the discharge door 2 is controlled to be opened to the half-open state, the discharge control method further includes:
acquiring production information, wherein the production information comprises a formula amount, a label and a corresponding formula;
and acquiring configuration information matched with the production information, wherein the configuration information comprises the half-open state, the preset half-open state time Tb and the second preset time.
Specifically, the formula is a production formula for a pan of concrete, such as 4 cubes or 5 cubes. The production formulas of the concrete with the strength of C25, C30, C35 and the like are different. The reference numbers, formulas and amounts are different, the corresponding half-open state, the preset half-open state duration Tb and the second preset duration may be different, and the parameters of the fully-open state, the preset fully-open state duration described later and the like may also be different, and will not be described in detail herein.
So, different production information can both obtain comparatively reasonable 2 controls of discharging the bin gate, can realize safely, stably, fast unloading.
Further, the obtaining of the configuration information matched with the production information includes: acquiring the configuration information matched with the production information from a database;
after the adjusting step, the discharge control method further includes: and updating the adjusted preset first state duration to the database.
Therefore, the method can be continuously perfected or updated to the database, and when the next production (for example, the next production), the same or similar production information can be matched according to the actual production information, so that the data such as the duration of the preset first state which is relatively consistent can be obtained, and the unloading can be quickly realized.
In some embodiments, the first state is the half-on state, the second state is the full-on state, and the predetermined signal strength is a first predetermined signal strength;
or the like, or a combination thereof,
the first state is the fully-opened state, the second state is the closed state, and the preset signal intensity is a second preset signal intensity.
When the discharge door 2 is in the fully open state, when the discharge detection signal intensity is smaller than the preset signal intensity, controlling the discharge door 2 to move from the first state to the second state comprises:
and when the discharging detection signal intensity is smaller than a second preset signal intensity and the duration of the discharging door 2 in the fully-opened state is greater than or equal to a preset fully-opened state duration Tq, controlling the discharging door 2 to move from the fully-opened state to the closed state.
It should be understood that the second predetermined signal strength is less than or equal to the first predetermined signal strength.
In this process, the corresponding parameters such as the preset fully-open state duration and the like can also be adaptively adjusted, and the adjusted preset fully-open state duration is updated to the database, which is not described in detail herein.
Therefore, the closing time of the discharging door 2 can be reasonably judged, and the total discharging time is saved.
Next, a discharge control method in which the first state includes a half-open state and a full-open state, and the second state includes a full-open state and a closed state will be exemplarily described with reference to fig. 6:
starting production at a mixing station, and acquiring production information such as the amount, the label, the formula and the like;
(mixing plant) start automatic production, configuration information matching production information is obtained (in database): a half-open state, a full-open state, a preset half-open state time and a preset full-open state time;
after the stirring is finished, the unloading is started, the unloading door moves to a half-open state, and the distance sensor monitors the concrete unloading condition (namely, a detection signal of the unloading detection device is obtained);
when the preset half-open unloading state is reached (at the moment, the unloading detection signal strength determined according to the detection signal of the unloading detection device is smaller than the first preset signal strength), the unloading door moves to the full-open state, and relevant parameter adjustment of the preset half-open state time is carried out during the full-open state (the adjusted preset half-open state time is updated to the database);
when the preset full-open discharging state is achieved (at the moment, the discharging detection signal intensity is smaller than the second preset signal intensity), the discharging door is closed, relevant parameter adjustment of the preset full-open state time is carried out during the closing process (the adjusted preset full-open state time is updated to the database), and the single-disc production is finished.
And adopting the updated database data to produce the next single disk.
Yet another embodiment of the present invention provides a mixing station comprising a memory and a processor;
the memory for storing a computer program;
the processor is configured to implement the unloading control method according to the above embodiment when executing the computer program.
Yet another embodiment of the present invention provides a mixing station comprising:
a discharge detection device 3 disposed toward a discharge area of the discharge door 2;
and the controller is used for realizing the unloading control method in the embodiment.
Optionally, the discharge detection means comprises one or more sensors;
in the case that the discharge detection device comprises a plurality of sensors, the sensors are positioned on one side of the discharge area and are distributed at intervals.
For example, a plurality of said sensors are equidistantly distributed, for example, the sensors are distance sensors.
The partial structure of the mixing station is partially explained in the embodiment of the unloading control method part, and the description is omitted here.
The mixing station has all the advantages of the discharge control method, and the details are not described here.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (11)
1. A discharge control method applied to a mixing station is characterized in that the mixing station comprises a discharge detection device (3), and the discharge control method comprises the following steps:
acquiring a detection signal of the unloading detection device (3);
determining the unloading detection signal intensity based on the detection signal;
and controlling the action of a discharging door (2) of the mixing plant based on the discharging detection signal intensity.
2. The discharge control method according to claim 1, wherein said discharge detecting means (3) comprises one or more sensors disposed toward a discharge area of said discharge gate (2), a signal intensity of a detection signal of said sensor corresponding to a magnitude of a discharge flow rate of said discharge gate (2);
the determining the unloading detection signal strength based on the detection signal comprises:
determining the discharge detection signal strength based on the signal strength of the detection signal of one or more of the sensors.
3. The discharge control method according to claim 1, wherein said discharge detection means (3) comprises a plurality of sensors disposed toward a discharge area of said discharge gate (2), a plurality of said sensors being located at one side of said discharge area and a plurality of said sensors being spaced apart;
the sensor sends out a preset signal when detecting the material, and the sensor does not send out a signal or sends out another preset signal when not detecting the material;
the determining the unloading detection signal strength based on the detection signal comprises:
and determining the unloading detection signal intensity based on the number of the preset signals.
4. The discharge control method according to any one of claims 1 to 3, wherein the controlling the discharge gate (2) to operate based on the discharge detection signal strength comprises:
when the unloading detection signal intensity is smaller than the preset signal intensity, controlling the unloading door (2) to move from a first state to a second state;
the first state and the second state are two adjacent states sequentially reached by the discharging door (2) in the discharging process respectively, and the two adjacent states are selected from combinations of adjacent states in a half-open state, a full-open state and a closed state which are sequentially reached.
5. The discharge control method according to claim 4, wherein said controlling the discharge gate (2) to move from the first state to the second state when the discharge detection signal strength is less than a preset signal strength comprises:
and when the discharging detection signal intensity is smaller than a preset signal intensity and the duration of the discharging door (2) in the first state is greater than or equal to the duration of the preset first state, controlling the discharging door (2) to move from the first state to the second state.
6. The discharging control method according to claim 4, wherein the discharging detection signal strength being less than the preset signal strength comprises:
and the duration of the unloading detection signal intensity being smaller than the preset signal intensity is greater than or equal to a first preset duration.
7. The discharge control method according to claim 5, further comprising an adjustment step, the adjustment step including:
when the first time length and the preset first state time length meet a preset condition, adjusting the preset first state time length according to the difference value of the preset first state time length and the first time length;
when the first time length and the preset first state time length do not meet the preset condition, keeping the preset first state time length unchanged;
wherein the starting time of the first duration is: the discharge door (2) reaches the starting moment of the first state, and the ending moment of the first duration is as follows: and the unloading detection signal intensity is smaller than the starting moment of the preset signal intensity.
8. The discharging control method according to claim 7, wherein when the first duration and the preset first state duration satisfy a preset condition, adjusting the preset first state duration according to a difference between the preset first state duration and the first duration comprises:
and when the first time length is less than the preset first state time length, reducing the preset first state time length according to the difference value between the preset first state time length and the first time length.
9. The discharge control method according to claim 7, wherein before controlling the discharge gate (2) to operate based on the discharge detection signal strength, the discharge control method further comprises:
acquiring production information;
and acquiring configuration information matched with the production information, wherein the configuration information comprises the preset first state duration.
10. The discharge control method according to claim 9, wherein the acquiring configuration information that matches the production information includes: acquiring the configuration information matched with the production information from a database;
after the adjusting step, the discharge control method further includes: and updating the adjusted preset first state duration to the database.
11. A mixing station, comprising:
the discharging detection device (3) is arranged towards the discharging area of the discharging door (2);
a controller for implementing the discharge control method as claimed in any one of claims 1 to 10.
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