Method and device for monitoring material flow running state of electronic belt scale

Abstract

The invention discloses a method and a device for monitoring a material flow running state of an electronic belt scale. The electronic belt scale material flow operation state monitoring method comprises the following steps: acquiring material flow data of an electronic belt scale; determining an electronic scale material flow process index according to the electronic belt scale material flow data, the operation flow upper limit and the operation flow lower limit; and based on the material flow process index of the electronic scale, determining the material running state of the electronic belt scale, and drawing a material flow process control trend chart according to the material flow data of the electronic belt scale. According to the technical scheme, the material flow operation state of the electronic belt scale can be monitored in real time, and the abnormal state of material flow operation on the electronic belt scale can be identified timely and accurately.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a method and device for monitoring the operation state of the material flow of an electronic belt scale. Background Art

[0002] Electronic belt scales are currently widely used in various production industries. In production manufacturing enterprises, when it comes to key process technology links such as the regulation of the moisture content of production materials, the uniform blending of materials, and the precise application of flavorings to materials, high requirements are imposed on the uniform stability of the material flow of the electronic scale, especially for intelligent manufacturing enterprises with high requirements for the accuracy of the product processing process.

[0003] Whether it is a metering-type electronic belt scale or a control-type electronic belt scale, during long-term use, many factors (such as the improper maintenance and calibration cycle of the electronic belt scale equipment by personnel; abnormal states of the equipment such as belt deviation and idler drive slip of the electronic belt scale equipment itself; uneven states such as looseness, agglomeration, and caking of the material before weighing; abnormal detection situations such as unstable sensor measurement accuracy and belt running speed) will cause a weakening of the operation stability of the electronic belt scale equipment.

[0004] The stability of the operation of the electronic belt scale determines the stability of the material flow transportation before production and processing. In the actual production process, if the above potential hidden problems cannot be discovered in time, the instability of the material flow transportation will indirectly affect the process processing quality of the product, and at the same time increase the difficulty of personnel in adjusting the process processing parameters, which is not conducive to the automatic control of production, and will lead to the inability to guarantee the stability of the product quality and a further decline in the product qualification rate. Therefore, in the actual production process, if it is possible to monitor the operation state of the material flow of the electronic belt scale in real time, discover the changes in the operation state of the material flow of the electronic scale in time, analyze the reasons for the abnormal state and take corresponding solutions, it is extremely important for the stability of the process processing quality of the product and the improvement of the product qualification rate. Summary of the Invention

[0005] The present invention provides a method and device for monitoring the operation state of the material flow of an electronic belt scale, which can solve the problem that the recognition effect of the operation state of the material flow of the current electronic belt scale is not good and the abnormal operation state of the material flow of the electronic belt scale cannot be discovered in time.

[0006] According to one aspect of the present invention, a method for monitoring the operation state of the material flow of an electronic belt scale is provided, including:

[0007] Obtain the material flow data of the electronic belt scale;

[0008] Determine the process index of the material flow of the electronic scale according to the material flow data of the electronic belt scale, the upper limit of the operating flow, and the lower limit of the operating flow;

[0009] Based on the material flow process index of the electronic scale, determine the operating state of the material on the electronic belt scale, and draw a trend chart of the material flow process control according to the material flow data of the electronic belt scale.

[0010] According to another aspect of the present invention, there is provided a monitoring device for the operating state of the material flow of an electronic belt scale, including:

[0011] A data acquisition module for acquiring the material flow data of the electronic belt scale;

[0012] An electronic scale material flow process index determination module for determining the electronic scale material flow process index according to the material flow data of the electronic belt scale, the upper limit of the operating flow, and the lower limit of the operating flow;

[0013] An operating state determination and trend chart drawing module for determining the operating state of the material on the electronic belt scale based on the electronic scale material flow process index, and drawing a trend chart of the material flow process control according to the material flow data of the electronic belt scale.

[0014] According to another aspect of the present invention, there is provided an electronic device, the electronic device includes:

[0015] At least one processor; and

[0016] A memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for monitoring the operating state of the material flow of the electronic belt scale according to any embodiment of the present invention.

[0018] According to another aspect of the present invention, there is provided a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the method for monitoring the operating state of the material flow of the electronic belt scale according to any embodiment of the present invention when executed by a processor.

[0019] The technical solution of the embodiment of the present invention obtains the material flow data of the electronic belt scale, and then determines the process index of the material flow of the electronic scale according to the material flow data of the electronic belt scale, the upper limit of the operating flow, and the lower limit of the operating flow. Furthermore, based on the process index of the material flow of the electronic scale, it determines the operating state of the material on the electronic belt scale, and draws a trend chart of the process control of the material flow according to the material flow data of the electronic belt scale. In this solution, by combining the material flow data of the electronic belt scale that reflects the operation of the material flow on the electronic belt scale in real time, the process index of the material flow of the electronic scale that measures the stability and capacity of the electronic belt scale is determined. Based on the process index of the material flow of the electronic scale, the operating state of the material flow of the electronic belt scale is automatically and accurately judged, which helps the management personnel to timely discover the abnormality of the material flow operation of the electronic belt scale, improves the efficiency of solving the faults of the electronic belt scale, and draws a trend chart of the process control of the material flow based on the material flow data of the electronic belt scale, which is convenient for the management personnel to intuitively and quickly understand the operating state of the material flow of the electronic belt scale, solves the problem that the recognition effect of the operating state of the material flow of the current electronic belt scale is not good and the abnormal operating state of the material flow of the electronic belt scale cannot be discovered in time, and can monitor the operating state of the material flow of the electronic belt scale in real time and accurately identify the abnormal state of the material flow operation on the electronic belt scale.

[0020] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0022] Figure 1 It is a flowchart of a method for monitoring the operating state of the material flow of an electronic belt scale provided in Embodiment 1 of the present invention;

[0023] Figure 2 It is a flowchart of a method for monitoring the operating state of the material flow of an electronic belt scale provided in Embodiment 2 of the present invention;

[0024] Figure 3 It is a trend chart of the process control of the material flow when the operating state of the material on the electronic belt scale provided in Embodiment 2 of the present invention is a stable operating state;

[0025] Figure 4It is a trend chart of material flow process control when the material operation state of the electronic belt scale provided in the second embodiment of the present invention is the running no-load state;

[0026] Figure 5 It is a trend chart of material flow process control when the material operation state of the electronic belt scale provided in the second embodiment of the present invention is the running overload state;

[0027] Figure 6 It is a trend chart of material flow process control when the material operation state of the electronic belt scale provided in the second embodiment of the present invention is the running fluctuation state;

[0028] Figure 7 It is a trend chart of material flow process control when the material operation state of the electronic belt scale provided in the second embodiment of the present invention is the running over-limit state;

[0029] Figure 8 It is a trend chart of material flow process control when the material operation state of the electronic belt scale provided in the second embodiment of the present invention is the running interruption state;

[0030] Figure 9 It is a trend chart of material flow process control before and after improvement provided in the second embodiment of the present invention;

[0031] Figure 10 It is another trend chart of material flow process control before and after improvement provided in the second embodiment of the present invention;

[0032] Figure 11 It is yet another trend chart of material flow process control before and after improvement provided in the second embodiment of the present invention;

[0033] Figure 12 It is a working flow chart of a material flow operation state monitoring system of an electronic belt scale provided in the second embodiment of the present invention;

[0034] Figure 13 It is a structural schematic diagram of a material flow operation state monitoring device of an electronic belt scale provided in the third embodiment of the present invention;

[0035] Figure 14 It shows a structural schematic diagram of an electronic device that can be used to implement the embodiments of the present invention. Detailed implementation manners

[0036] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0038] Embodiment 1

[0039] Figure 1 It is a flowchart of a method for monitoring the operating state of the material flow of an electronic belt scale provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of accurately and timely identifying the state of the electronic belt scale. This method can be executed by a device for monitoring the operating state of the material flow of the electronic belt scale. The device for monitoring the operating state of the material flow of the electronic belt scale can be implemented in the form of hardware and / or software, and the device for monitoring the operating state of the material flow of the electronic belt scale can be configured in an electronic device. As Figure 1 shown, the method includes:

[0040] Step 110, obtain the material flow data of the electronic belt scale.

[0041] Among them, the material flow data of the electronic belt scale can be data describing the material flow on the electronic belt scale.

[0042] In the embodiment of the present invention, the material flow data of the electronic belt scale can be collected through an online acquisition component.

[0043] Optionally, an online acquisition component can be composed of a pressure sensor, a speed sensor, and a calculus processing program of the electronic belt scale, and the instantaneous material flow of the electronic belt scale can be calculated in real time through this component, and the collected relevant material flow data can be stored online.

[0044] Step 120: Determine the process index of the material flow of the electronic belt scale based on the material flow data of the electronic belt scale, the upper limit of the operating flow rate, and the lower limit of the operating flow rate.

[0045] Among them, the upper limit of the operating flow rate can be the maximum operating threshold of the material flow of the pre-set electronic belt scale. The lower limit of the operating flow rate can be the minimum operating threshold of the material flow of the pre-set electronic belt scale. The process index of the material flow of the electronic scale can be an important indicator to measure the stability and capacity of the electronic belt scale, and is used to describe the degree to which the electronic belt scale meets the requirements of the product quality standard.

[0046] In the embodiment of the present invention, the range mean value and the mean value of the operating flow rate of the electronic belt scale can be calculated based on the material flow data of the electronic belt scale, and then a plurality of process indexes of the material flow of the electronic scale can be determined based on the range mean value of the operating flow rate of the electronic belt scale, the mean value of the operating flow rate, the upper limit of the operating flow rate, and the lower limit of the operating flow rate.

[0047] Step 130: Determine the operating state of the material on the electronic belt scale based on the process index of the material flow of the electronic scale, and draw a trend chart of the process control of the material flow according to the material flow data of the electronic belt scale.

[0048] Among them, the operating state of the material on the electronic belt scale can be used to reflect the flow operation of the material on the electronic belt scale. The trend chart of the process control of the material flow can be a metering control chart representing the material flow of the electronic belt scale. The trend chart of the process control of the material flow can include, but is not limited to, the mean-range chart and / or the mean-standard deviation chart

[0049] In the embodiment of the present invention, the operating state of the material on the electronic belt scale can be determined in real time based on the process index of the material flow of the electronic scale and the pre-set discriminant conditions for the operating state of the material flow of the electronic scale, and then a trend chart of the process control of the material flow can be drawn and displayed according to the material flow data of the electronic belt scale.

[0050] The technical solution of the embodiment of the present invention obtains the material flow data of the electronic belt scale, and then determines the process index of the material flow of the electronic scale according to the material flow data of the electronic belt scale, the upper limit of the operating flow rate, and the lower limit of the operating flow rate. Furthermore, based on the process index of the material flow of the electronic scale, the operating state of the material on the electronic belt scale is determined, and a trend chart of the process control of the material flow is drawn according to the material flow data of the electronic belt scale. In this solution, by combining the material flow data of the electronic belt scale that reflects the operating condition of the material flow on the electronic belt scale in real time, the process index of the material flow of the electronic scale that measures the stability and capacity of the electronic belt scale is determined. Based on the process index of the material flow of the electronic scale, the operating state of the material flow on the electronic belt scale is automatically and accurately identified, helping the management personnel to timely discover the abnormality of the material flow operation on the electronic belt scale, improving the efficiency of troubleshooting the electronic belt scale, and drawing a trend chart of the process control of the material flow based on the material flow data of the electronic belt scale, which facilitates the management personnel to intuitively and quickly understand the operating state of the material flow on the electronic belt scale, solves the problem that the recognition effect of the operating state of the material flow of the current electronic belt scale is not good and the abnormal operating state of the material flow of the electronic belt scale cannot be discovered in time, and can monitor the operating state of the material flow on the electronic belt scale in real time and accurately identify the abnormal state of the material flow operation on the electronic belt scale.

[0051] Embodiment 2

[0052] Figure 2 The flowchart of a method for monitoring the operating state of the material flow of an electronic belt scale provided by the second embodiment of the present invention. This embodiment is refined based on the above embodiment. Specifically, in this embodiment, the drawing of the trend chart of the process control of the material flow according to the material flow data of the electronic belt scale is refined, and it may specifically include: calculating the mean range plotting parameter and / or the mean standard deviation plotting parameter according to the material flow data of the electronic belt scale; drawing the trend chart of the process control of the material flow according to the mean range plotting parameter and / or the mean standard deviation plotting parameter. As Figure 2 shown, the method includes:

[0053] Step 210: Obtain the material flow data of the electronic belt scale.

[0054] Step 220: Determine the process index of the material flow of the electronic scale according to the material flow data of the electronic belt scale, the upper limit of the operating flow rate, and the lower limit of the operating flow rate.

[0055] In an alternative embodiment of the present invention, determining the material flow process index of the electronic scale based on the material flow data of the electronic belt scale, the upper limit of the operating flow rate, and the lower limit of the operating flow rate may include: calculating the operating flow standard deviation according to the material flow data of the electronic belt scale and the control chart coefficient; determining the first flow process index in the material flow process index of the electronic scale based on the upper limit of the operating flow rate, the average operating flow rate, and the operating flow standard deviation; determining the second flow process index in the material flow process index of the electronic scale based on the lower limit of the operating flow rate, the average operating flow rate, and the operating flow standard deviation; determining the third flow process index in the material flow process index of the electronic scale based on the first flow process index, the second flow process index, and the operating flow standard deviation; and determining the fourth flow process index in the material flow process index of the electronic scale based on the first flow process index and the second flow process index.

[0056] Among them, the control chart coefficient may be the coefficient of the material flow process control trend chart set in advance. The control chart coefficient corresponds to the number of subgroup observation data. The subgroup observation data may be the subgroup data corresponding to the sampling period of the material flow data of the electronic belt scale. The operating flow standard deviation can be used to measure the dispersion degree of the material operating flow of the electronic belt scale. The first flow process index, the second flow process index, the third flow process index, and the fourth flow process index are four different material flow process indexes of the electronic scale.

[0057] In the embodiment of the present invention, the range mean of the operating flow rate of the electronic belt scale can be calculated based on the material flow data of the electronic belt scale, and the ratio of the range mean of the operating flow rate of the electronic belt scale to the control chart coefficient can be used as the operating flow standard deviation. Then, the difference between the upper limit of the operating flow rate and the average operating flow rate is calculated. According to the difference between the upper limit of the operating flow rate and the average operating flow rate, and the operating flow standard deviation, the first flow process index in the material flow process index of the electronic scale is determined. Thus, the difference between the average operating flow rate and the lower limit of the operating flow rate is calculated. According to the difference between the average operating flow rate and the lower limit of the operating flow rate, and the operating flow standard deviation, the second flow process index in the material flow process index of the electronic scale is determined. Furthermore, the difference between the first flow process index and the second flow process index is calculated. Based on the difference between the first flow process index and the second flow process index, and the operating flow standard deviation, the third flow process index in the material flow process index of the electronic scale is calculated. Finally, the minimum value of the first flow process index and the second flow process index is used as the fourth flow process index in the material flow process index of the electronic scale.

[0058] Exemplarily, the first flow process index can be calculated based on the formula The second flow process index is calculated based on the formula The third flow process index is calculated based on the formula The fourth flow process index is calculated based on the formula CQPK = min(C QPU , C QPL ) calculation.

[0059] Among them, the third flow process index and the fourth flow process index are different in that the fourth flow process index considers the average operating flow. The first flow process index is the process capability index of the upper limit of the material flow of the electronic belt scale, and the second flow process index is the process capability index of the lower limit of the material flow of the electronic belt scale. Where the operating set value of the material flow of the electronic belt scale is M; the tolerance is ±m; the average operating flow is μ; the standard deviation of the operating flow is σ. Q USL represents the upper limit of the operating flow, Q LSL represents the lower limit of the operating flow, Q USL = M + m, Q LSL = M - m.

[0060] Step 230: Based on the material flow process index of the electronic scale, determine the operating state of the material on the electronic belt scale, and calculate the mean range plotting parameter, and / or the mean standard deviation plotting parameter according to the material flow data of the electronic belt scale.

[0061] Among them, the mean range plotting parameter can be the mean and range of the material operating flow calculated based on the material flow data of the electronic belt scale. The mean standard deviation plotting parameter can be the mean and standard deviation of the material operating flow calculated based on the material flow data of the electronic belt scale.

[0062] In the embodiment of the present invention, after determining the operating state of the material on the electronic belt scale based on the material flow process index of the electronic scale, the mean range plotting parameter, and / or the mean standard deviation plotting parameter for drawing the material flow process control trend chart can be further calculated according to the material flow data of the electronic belt scale.

[0063] In an alternative embodiment of the present invention, determining the operating state of the material on the electronic belt scale based on the material flow process index of the electronic scale may include: when the third flow process index and the fourth flow process index satisfy the preset index error, and the third flow process index and the fourth flow process index are greater than the process index comparison threshold, determining that the operating state of the material on the electronic belt scale is a stable operating state; when the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow rate of the material on the electronic belt scale in the material flow data of the electronic belt scale is between the upper limit and the lower limit of the operating flow rate, and the first flow process index is greater than the second flow process index, determining that the operating state of the material on the electronic belt scale is an empty operating state; when the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow rate of the material on the electronic belt scale in the material flow data of the electronic belt scale is between the upper limit and the lower limit of the operating flow rate, and the first flow process index is less than the second flow process index, determining that the operating state of the material on the electronic belt scale is an overloaded operating state.

[0064] Wherein, the preset index error may be the allowable error between two process indexes when determining that the two process indexes are close. The process index comparison threshold may be a preset comparison threshold for the process index.

[0065] In an embodiment of the present invention, the difference between the third flow process index and the fourth flow process index may be calculated. If the difference between the two is less than or equal to the preset index error, it is determined that the third flow process index and the fourth flow process index satisfy the preset index error. When the third flow process index and the fourth flow process index satisfy the preset index error, and the third flow process index and the fourth flow process index are greater than the process index comparison threshold, it can be automatically determined that the operating state of the material on the electronic belt scale is a stable operating state. If the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow rate of the material on the electronic belt scale in the material flow data of the electronic belt scale is between the upper limit and the lower limit of the operating flow rate, and the first flow process index is greater than the second flow process index, then it can be automatically determined that the operating state of the material on the electronic belt scale is an empty operating state. If the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow rate of the material on the electronic belt scale in the material flow data of the electronic belt scale is between the upper limit and the lower limit of the operating flow rate, and the first flow process index is less than the second flow process index, then it can be automatically determined that the operating state of the material on the electronic belt scale is an overloaded operating state.

[0066] Exemplarily, the material flow process control trend chart when the operating state of the material on the electronic belt scale is a stable operating state may be as Figure 3 shown, and the material flow process control trend chart when the operating state of the material on the electronic belt scale is an empty operating state may be asFigure 4 As shown, the material flow process control trend chart when the material running state of the electronic belt scale is in the overloaded running state can be as Figure 5 shown.

[0067] In an alternative embodiment of the present invention, determining the material running state of the electronic belt scale based on the material flow process index of the electronic scale may include: when both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous material flow of the electronic belt scale is between the upper running flow limit and the lower running flow limit, determining that the material running state of the electronic belt scale is the running fluctuation state; when both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous material flow of the electronic belt scale is greater than the upper running flow limit, determining that the material running state of the electronic belt scale is the running over-upper limit state; when both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous material flow of the electronic belt scale is less than the lower running flow limit, determining that the material running state of the electronic belt scale is the running over-lower limit state; when the instantaneous material flow of the electronic belt scale is zero and the duration exceeds the monitoring time threshold, determining that the material running state of the electronic belt scale is the running interruption state.

[0068] Among them, the monitoring time threshold may be a pre-set monitoring duration for determining that the material running state of the electronic belt scale is the running interruption state. The running over-lower limit state and the running over-upper limit state may be collectively referred to as the running over-limit state.

[0069] In the embodiment of the present invention, if both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous material flow of the electronic belt scale is between the upper running flow limit and the lower running flow limit, then it can be automatically determined that the material running state of the electronic belt scale is the running fluctuation state. If both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous material flow of the electronic belt scale is greater than the upper running flow limit, then it can be automatically determined that the material running state of the electronic belt scale is the running over-upper limit state. If both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous material flow of the electronic belt scale is less than the lower running flow limit, then it can be automatically determined that the material running state of the electronic belt scale is the running over-lower limit state. If the instantaneous material flow of the electronic belt scale is zero and the duration exceeds the monitoring time threshold, then it can be automatically determined that the material running state of the electronic belt scale is the running interruption state.

[0070] Exemplarily, the material flow process control trend chart when the material running state of the electronic belt scale is the running fluctuation state can be as Figure 6 shown, and the material flow process control trend chart when the material running state of the electronic belt scale is the running over-limit state can be as Figure 7As shown, the material flow process control trend chart when the material operation state of the electronic belt scale is in an interrupted operation state can be as Figure 8 shown. Figure 7 And Figure 8 The red rectangle in

[0071] Optionally, lights can be combined to display the material flow operation state for the managers of the electronic belt scale. For example, it flashes green in a stable operation state, yellow in an empty-load operation state, orange in an overloaded operation state, yellowish green alternates in a fluctuating operation state, red in an interrupted operation state, red and yellow in an over-limit operation state, and the buzzer gives an alarm prompt in all states except the stable operation state.

[0072] After judging the material operation state of the electronic belt scale, the material flow state prompt unit LED light combination prompts different material flow operation states, and the results are shown in Table 1:

[0073] Table 1 Monitoring results of the operation state of the electronic belt scale

[0074]

[0075]

[0076] Q in Table 1 represents the instantaneous material flow of the electronic belt scale. Table 1 shows the monitoring results of six different material operation states of the electronic belt scale. It can be seen from Table 1 that based on the material flow process index of the electronic scale, the material operation state of the electronic belt scale can be monitored and judged well. The difference between the process capability indices can directly reflect the material flow operation state. At the same time, combined with the corresponding material flow process control trend chart, the material operation state of the electronic belt scale can be monitored in real time. By comparing and viewing different material flow process control trend charts, the abnormal operation state of the material flow of the electronic belt scale in the production process can be found in time, achieving the timeliness of problem discovery in the monitoring process.

[0077] Step 240: Draw a material flow process control trend chart according to the mean range plotting parameters and / or the mean standard deviation plotting parameters.

[0078] In the embodiment of the present invention, a mean-range chart can be drawn according to the mean range plotting parameters, and / or a mean-standard deviation chart can be drawn according to the mean standard deviation plotting parameters, and the drawn measurement control chart is used as the material flow process control trend chart.

[0079] In an alternative embodiment of the present invention, after drawing a process control trend chart of the material flow based on the material flow data of the electronic belt scale, the following steps may further be included: obtaining the current third flow process index and the current fourth flow process index after the abnormal state of the electronic belt scale is processed; determining the first improvement result of the electronic belt scale according to the ratio of the current third flow process index to the third flow process index before the abnormal state of the electronic belt scale is processed; and determining the second improvement result of the electronic belt scale according to the ratio of the current fourth flow process index to the fourth flow process index before the abnormal state of the electronic belt scale is processed.

[0080] Among them, the first improvement result of the electronic belt scale can be used to reflect the improvement result of the running stability of the electronic belt scale after the abnormal state is processed. The second improvement result of the electronic belt scale can be used to reflect the degree of closeness between the running value and the expected value of the electronic belt scale after the abnormal state is processed.

[0081] In an embodiment of the present invention, after the manager of the electronic belt scale adjusts the abnormal state of the electronic belt scale, the material flow data of the electronic belt scale after the adjustment can be further collected to determine the current third flow process index and the current fourth flow process index. Furthermore, the ratio of the current third flow process index to the third flow process index before the abnormal state of the electronic belt scale is processed is used as the first improvement result of the electronic belt scale, and the ratio of the current fourth flow process index to the fourth flow process index before the abnormal state of the electronic belt scale is processed is determined as the second improvement result of the electronic belt scale.

[0082] Exemplarily, for the three states of no-load operation, overload operation, and operation fluctuation of the material flow in batch numbers 2-4 in the foregoing example, the reasons are found and improved. The material flow data of the electronic belt scale in the next operation stage after the improvement is collected, the process control trend chart of the material flow in the next operation stage after the improvement is drawn, and the process index of the material flow of the improved electronic scale is calculated and compared with the previous operation stage to further obtain the first improvement result K of the electronic belt scale and the second improvement result T of the electronic belt scale. The results are shown in Table 2.

[0083] Table 2 Comparison of the operating states of the electronic belt scale before and after improvement

[0084]

[0085] It can be concluded from the results that both K and T corresponding to batch number 4 are greater than 1, indicating that the operating stability of the improved electronic belt scale and the proximity of the actual operating value to the set value have been effectively improved. The operating fluctuation state has been further weakened and the operating stability has been improved, and the improvement measures taken are effective. For batch numbers 2 and 3, both corresponding Ts are greater than 1 and both Ks are less than 1, indicating that the no-load and overload conditions of the improved electronic scale have been improved, and the proximity of the actual operating value of the electronic scale to the set value has been effectively improved. However, since both Ks are less than 1, the operating stability has not been improved. For batch number 2, the corresponding K is 0.54, indicating that the operating stability has been further weakened after improvement. The process control trend charts of the material flow before and after the improvement for batch numbers 2, 3, and 4 are respectively as Figure 9 、 Figure 10 and Figure 11 shown. Figure 9 、 Figure 10 and Figure 11 Before the abscissa is 155, it is before the improvement, and after 155, it is after the improvement.

[0086] By comparing the changes in the operating state of the material flow at each operating stage after the improvement, the operating effect of the material flow of the electronic belt scale after the abnormal problems are solved is verified. A closed-loop verification is adopted to achieve the controllability of the disposal of the abnormal problems. At the same time, combined with the process control trend chart of the material flow, the effects before and after the improvement are visually viewed and compared, realizing the monitoring of the whole process of the operating state of the material flow of the electronic belt scale, and providing a basis for the stable improvement of the subsequent product process quality.

[0087] In an alternative embodiment of the present invention, calculating the standard deviation of the operating flow according to the material flow data of the electronic belt scale and the control chart coefficient may include: determining the maximum value of the subgroup operating flow and the minimum value of the subgroup operating flow according to the material flow data of the electronic belt scale; calculating the standard deviation of the operating flow according to the maximum value of the subgroup operating flow, the minimum value of the subgroup operating flow, and the control chart coefficient.

[0088] Among them, the maximum value of the subgroup operating flow may be the maximum value of the operating flow of the subgroup corresponding to the sampling period of the material flow data of the electronic belt scale. The minimum value of the subgroup operating flow may be the minimum value of the operating flow of the subgroup corresponding to the sampling period of the material flow data of the electronic belt scale.

[0089] In an embodiment of the present invention, the control chart coefficient of a pre-set material flow process control trend chart can be determined first, and then the material flow data of the electronic belt scale can be analyzed to determine multiple sub-group data of the material operation flow of the electronic belt scale under the sampling period. Furthermore, the maximum sub-group operation flow and the minimum sub-group operation flow under each sub-group data can be determined. Thus, based on the maximum sub-group operation flow and the minimum sub-group operation flow under each sub-group data, the average range of the operation flow is calculated, and the ratio of the average range of the operation flow to the control chart coefficient is used as the standard deviation of the operation flow.

[0090] Exemplarily, assume is the average range of the operation flow, d 2 is the control chart coefficient, and the standard deviation of the operation flow The range of the operation flow R T = Q max - Q min .

[0091] Exemplarily, Q max is the maximum value under the sub-group data corresponding to the sampling period; for example, among 10 flow operation data, divided into 2 groups, the maximum value minus the minimum value in one group of 5 data gives the R T corresponding to this sub-group data, and the Rs T for each sub-group data are added up and averaged.

[0092] In a specific example, a monitoring system for the material flow operation status of an electronic belt scale can be composed of an online acquisition and storage unit (i.e., an online acquisition component), a material flow operation status detection unit, a material flow operation status monitoring unit, a material flow operation status prompting unit, a PLC controller, and a computer.

[0093] The material flow operation status detection unit is used to calculate and real-time judge the material operation status of the electronic belt scale; wherein, the material operation status of the electronic belt scale can include six working operation statuses: stable material flow operation, no-load operation, overload operation, fluctuating / unstable operation, operation interruption, and operation overlimit.

[0094] The material flow operation status monitoring unit is composed of an integrated digital display and a material flow control chart of the electronic belt scale, and real-time displays the material operation status of the electronic belt scale.

[0095] The material flow operation status prompting unit is composed of a buzzer and LED prompting lights. The LED can flash different combinations of colors of lights, and different colors represent different material flow statuses.

[0096] Among them, the material flow operation status detection unit monitors and judges the material flow operation status by calculating the process capability index within the 6σ fluctuation range of the material flow of the electronic belt scale, and using the process index of the electronic scale material flow and the corresponding limit values.

[0097] The working flowchart of the material flow operation status monitoring system for the electronic belt scale is as Figure 12 shown. Obtain the material flow data of the electronic belt scale, store the real-time collected material flow data of the electronic belt scale online, draw the process control trend chart of the material flow in real time, and then calculate the process index of the electronic scale material flow to judge the operation status of the electronic belt scale material. When an abnormal situation occurs, transmit the processing result to the PLC controller, and the PLC controller triggers the material flow prompt device to remind the management personnel to check and handle the cause in time. At the same time, verify and compare the improvement effect after the abnormal problem is processed, that is, feedback the analysis result and trigger a reminder. After the management personnel take measures, verify the improvement effect.

[0098] Obtain the material flow data of the electronic belt scale in the feeding process of a tobacco manufacturing enterprise online. According to the actual production situation, the operating set value of the electronic scale is 2500±5 Kg / h, and the data acquisition interval is set to 10 s / time. Store the collected material flow data of the electronic belt scale in normal production operation batches and the material flow data of other production operation status batches online in the computer. The process control trend chart of the material flow uses a control chart. The data subgroup of the control chart is set to 4, and draw the control chart of the material flow of the electronic belt scale. The horizontal axis is the data acquisition operation time, and the vertical axis is the collected operation flow data. Optionally, the data acquisition interval can be set to 5 - 15 s, and the data subgroup setting range of the control chart is 4 - 6.

[0099] By monitoring the operation status of the material flow of the electronic belt scale in real time, timely discover the abnormal operation status of the material flow of the electronic belt scale in the production process. According to the monitoring results of the material flow operation status of the electronic belt scale, the reasons for the abnormal operation status type can be analyzed in time, and corresponding solutions can be taken to avoid further quality hazards and reduce the occurrence of unqualified products. After the abnormal problem is processed, perform real-time calculations on the data after the production resumes operation, and analyze and compare with the data before the abnormal problem is processed to verify the operation effect of the material flow of the electronic belt scale after the abnormal problem is solved. Adopt closed-loop verification to provide a basis for the stable improvement of the subsequent product process processing quality. By monitoring the process capability index and combining the operation trend of the control chart, the operation status of the material flow of the electronic belt scale can be fed back in real time, making the process have the characteristics of timely problem discovery, controllable abnormal handling, comparable improvement effect, and visual process monitoring.

[0100] The technical solution of the embodiment of the present invention obtains the material flow rate data of the electronic belt scale, and then determines the process index of the material flow rate of the electronic scale according to the material flow rate data of the electronic belt scale, the upper limit of the operating flow rate, and the lower limit of the operating flow rate. Furthermore, based on the process index of the material flow rate of the electronic scale, it determines the operating state of the material on the electronic belt scale, and calculates the mean range plotting parameters and / or the mean standard deviation plotting parameters according to the material flow rate data of the electronic belt scale. Further, according to the mean range plotting parameters and / or the mean standard deviation plotting parameters, it draws the process control trend chart of the material flow rate. In this solution, by combining the material flow rate data of the electronic belt scale that reflects the operating condition of the material flow rate on the electronic belt scale in real time, it determines the process index of the material flow rate of the electronic scale that measures the stability and capacity of the electronic belt scale, so as to automatically and accurately determine the operating state of the material flow rate of the electronic belt scale based on the process index of the material flow rate of the electronic scale, helping the management personnel to timely discover the abnormality of the material flow rate operation of the electronic belt scale, improving the efficiency of solving the faults of the electronic belt scale, and drawing the process control trend chart of the material flow rate based on the material flow rate data of the electronic belt scale, facilitating the management personnel to intuitively and quickly understand the operating state of the material flow rate of the electronic belt scale, solving the problem that the recognition effect of the operating state of the material flow rate of the current electronic belt scale is not good and the abnormal operating state of the material flow rate of the electronic belt scale cannot be discovered in time, and being able to monitor the operating state of the material flow rate of the electronic belt scale in real time and accurately identify the abnormal state of the material flow rate operation on the electronic belt scale.

[0101] Embodiment III

[0102] Figure 13 It is a schematic structural diagram of a device for monitoring the operating state of the material flow rate of an electronic belt scale provided by Embodiment III of the present invention. As Figure 13 shown, the device includes:

[0103] A data acquisition module 310, configured to acquire the material flow rate data of the electronic belt scale;

[0104] A process index determination module 320 of the material flow rate of the electronic scale, configured to determine the process index of the material flow rate of the electronic scale according to the material flow rate data of the electronic belt scale, the upper limit of the operating flow rate, and the lower limit of the operating flow rate;

[0105] An operating state determination and trend chart drawing module 330, configured to determine the operating state of the material on the electronic belt scale based on the process index of the material flow rate of the electronic scale, and draw the process control trend chart of the material flow rate according to the material flow rate data of the electronic belt scale.

[0106] The technical solution of the embodiment of the present invention obtains the material flow rate data of the electronic belt scale, and then determines the material flow process index of the electronic scale according to the material flow rate data of the electronic belt scale, the upper limit of the operating flow rate and the lower limit of the operating flow rate. Furthermore, based on the material flow process index of the electronic scale, the operating state of the material on the electronic belt scale is determined, and a material flow process control trend chart is drawn according to the material flow rate data of the electronic belt scale. In this solution, by combining the material flow rate data of the electronic belt scale that reflects the operation of the material flow rate on the electronic belt scale in real time, the material flow process index of the electronic scale that measures the stability and capacity of the electronic belt scale is determined. Based on the material flow process index of the electronic scale, the operating state of the material flow rate on the electronic belt scale is automatically and accurately determined, which helps the management personnel to timely discover the abnormality of the material flow rate operation on the electronic belt scale, improves the efficiency of solving the faults of the electronic belt scale, and draws a material flow process control trend chart based on the material flow rate data of the electronic belt scale, which is convenient for the management personnel to intuitively and quickly understand the operating state of the material flow rate on the electronic belt scale. This solves the problem that the recognition effect of the operating state of the material flow rate of the current electronic belt scale is not good and the abnormal operating state of the material flow rate of the electronic belt scale cannot be discovered in time, and can monitor the operating state of the material flow rate of the electronic belt scale in real time and accurately identify the abnormal state of the material flow rate operation on the electronic belt scale.

[0107] Optionally, the material flow process index determination module 320 of the electronic scale includes: calculating the standard deviation of the operating flow rate according to the material flow rate data of the electronic belt scale and the control chart coefficient; determining the first flow process index in the material flow process index of the electronic scale based on the upper limit of the operating flow rate, the average value of the operating flow rate and the standard deviation of the operating flow rate; determining the second flow process index in the material flow process index of the electronic scale based on the lower limit of the operating flow rate, the average value of the operating flow rate and the standard deviation of the operating flow rate; determining the third flow process index in the material flow process index of the electronic scale based on the first flow process index, the second flow process index and the standard deviation of the operating flow rate; determining the fourth flow process index in the material flow process index of the electronic scale based on the first flow process index and the second flow process index.

[0108] Optionally, the operating status determination and trend graph plotting module 330 includes an operating status determination unit and a trend graph plotting unit; the operating status determination unit is specifically configured to determine that the operating status of the electronic belt scale material is a stable operating status when the third flow process index and the fourth flow process index meet a preset index error, and the third flow process index and the fourth flow process index are greater than the process index comparison threshold; when the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow rate of the electronic belt scale material in the electronic belt scale material flow data is between the upper limit and the lower limit of the operating flow rate, and the first flow process index is greater than the second flow process index, determine that the operating status of the electronic belt scale material is an idle operating status; when the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow rate of the electronic belt scale material is between the upper limit and the lower limit of the operating flow rate, and the first flow process index is less than the second flow process index, determine that the operating status of the electronic belt scale material is an overloaded operating status.

[0109] Optionally, the operating status determination unit is specifically configured to determine that the operating status of the electronic belt scale material is a fluctuating operating status when both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous flow rate of the electronic belt scale material is between the upper limit and the lower limit of the operating flow rate; determine that the operating status of the electronic belt scale material is an over-upper-limit operating status when both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous flow rate of the electronic belt scale material is greater than the upper limit of the operating flow rate; determine that the operating status of the electronic belt scale material is an over-lower-limit operating status when both the third flow process index and the fourth flow process index are less than the process index comparison threshold, and the instantaneous flow rate of the electronic belt scale material is less than the lower limit of the operating flow rate; determine that the operating status of the electronic belt scale material is an interrupted operating status when the instantaneous flow rate of the electronic belt scale material is zero and the duration exceeds the monitoring time threshold.

[0110] Optionally, the trend graph plotting unit is configured to calculate mean range plotting parameters and / or mean standard deviation plotting parameters according to the electronic belt scale material flow data; and draw the material flow process control trend graph according to the mean range plotting parameters and / or mean standard deviation plotting parameters.

[0111] Optionally, the monitoring of the material flow operation status of the electronic belt scale further includes an operation flow standard deviation calculation module, which is used to determine the maximum subgroup operation flow and the minimum subgroup operation flow according to the material flow data of the electronic belt scale; and calculate the operation flow standard deviation according to the maximum subgroup operation flow, the minimum subgroup operation flow and the control chart coefficient.

[0112] The device for monitoring the material flow operation status of the electronic belt scale provided by the embodiments of the present invention can execute the method for monitoring the material flow operation status of the electronic belt scale provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method.

[0113] Embodiment 4

[0114] Figure 14 The figure shows a schematic structural diagram of an electronic device that can be used to implement the embodiments of the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0115] As Figure 14 shown, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc. The memory stores a computer program executable by at least one processor. The processor 11 can execute various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0116] Multiple components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disc, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0117] The processor 11 may be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for monitoring the operating state of the material flow of an electronic belt scale.

[0118] In some embodiments, the method for monitoring the operating state of the material flow of an electronic belt scale may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for monitoring the operating state of the material flow of an electronic belt scale described above may be executed. Alternatively, in other embodiments, the processor 11 may be configured to execute the method for monitoring the operating state of the material flow of an electronic belt scale by any other suitable means (e.g., by means of firmware).

[0119] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuitry, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor, and can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0120] The computer program for implementing the method of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer program can be executed entirely on the machine, partially on the machine, as an independent software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0121] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0122] To provide for interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide for interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0123] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0124] A computing system may include a client and a server. The client and the server are generally far from each other and usually interact via a communication network. The relationship between the client and the server is created by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, solving the defects of traditional physical hosts and VPS servers, such as high management difficulty and weak business scalability.

[0125] The embodiments of the present application also disclose a computer program product. The computer program product includes a computer program which, when executed by a processor, implements the method for monitoring the operating state of the material flow of an electronic belt scale provided in any embodiment of the present application. This program product and the method for monitoring the operating state of the material flow of an electronic belt scale disclosed in the embodiments of the present application belong to the same inventive concept, and thus will not be elaborated herein.

[0126] It should be understood that various forms of the processes shown above can be used, with steps reordered, added or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is imposed herein.

[0127] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for monitoring the material flow operating status of an electronic belt scale, characterized in that: include: Obtain material flow data from electronic belt scale; Determine the electronic scale material flow process index according to the electronic belt scale material flow data, the upper limit of the operating flow rate, and the lower limit of the operating flow rate; Based on the electronic scale material flow process index, the material operation status of the electronic belt scale is determined, and according to the electronic belt scale material flow data, a material flow process control trend diagram is drawn.

2. The method according to claim 1, characterized in that: According to the electronic belt scale material flow data, the upper limit of the operating flow rate, and the lower limit of the operating flow rate, the electronic scale material flow process index is determined, including: Calculate the operating flow standard deviation based on the electronic belt scale material flow data and the control chart coefficient; Determine a first flow process index among the electronic scale material flow process indexes based on the operating flow upper limit, the operating flow mean, and the operating flow standard deviation; Determine a second flow process index in the electronic scale material flow process index based on the operating flow lower limit, the operating flow mean, and the operating flow standard deviation; Determine a third flow process index in the electronic scale material flow process index based on the first flow process index, the second flow process index and the operating flow standard deviation; Based on the first flow process index and the second flow process index, a fourth flow process index in the electronic scale material flow process index is determined.

3. The method according to claim 2, characterized in that Based on the electronic scale material flow process index, determining the material operation state of the electronic belt scale includes: When the third flow process index and the fourth flow process index satisfy a preset index error, and the third flow process index and the fourth flow process index are greater than a process index comparison threshold, it is determined that the material operation state of the electronic belt scale is a stable operation state; When the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow of the electronic belt scale material in the electronic belt scale material flow data is between the upper limit of the operating flow and the lower limit of the operating flow, and the first flow process index is greater than the second flow process index, it is determined that the material operating state of the electronic belt scale is an operating no-load state; When the third flow process index is greater than the process index comparison threshold, the fourth flow process index is less than the process index comparison threshold, the instantaneous flow of the electronic belt scale material is between the upper limit and the lower limit of the operating flow, and the first flow process index is less than the second flow process index, it is determined that the operating state of the electronic belt scale material is an operating overload state.

4. The method according to claim 3, characterized in that Based on the electronic scale material flow process index, determining the material operation state of the electronic belt scale includes: When the third flow process index and the fourth flow process index are both less than the process index comparison threshold, and the instantaneous flow rate of the electronic belt scale material is between the upper limit of the operating flow rate and the lower limit of the operating flow rate, it is determined that the operating state of the electronic belt scale material is an operating fluctuation state; When the third flow process index and the fourth flow process index are both smaller than the process index comparison threshold, and the instantaneous flow rate of the electronic belt scale material is greater than the operating flow rate upper limit, determining that the operating state of the electronic belt scale material is an operating over-upper limit state; When the third flow process index and the fourth flow process index are both less than the process index comparison threshold, and the instantaneous flow rate of the electronic belt scale material is less than the lower limit of the operation flow rate, it is determined that the operation state of the electronic belt scale material is an operation exceeding the lower limit state; When the instantaneous flow of the electronic belt scale material is zero and the duration exceeds the monitoring time threshold, it is determined that the material operation state of the electronic belt scale is an operation interruption state.

5. The method according to claim 1, characterized in that According to the material flow data of the electronic belt scale, a material flow process control trend diagram is drawn, including: Calculate mean range plotting parameters and / or mean standard deviation plotting parameters according to the electronic belt scale material flow data; The material flow process control trend diagram is drawn according to the mean range drawing parameters and / or the mean standard deviation drawing parameters.

6. The method according to claim 1, characterized in that After drawing a material flow process control trend diagram according to the material flow data of the electronic belt scale, the method further includes: Obtain the current third flow process index and the current fourth flow process index after the abnormal state of the electronic belt scale is processed; Determine the first improvement result of the electronic belt scale according to the ratio of the current third flow process index to the third flow process index before the abnormal state of the electronic belt scale is processed; The second improvement result of the electronic belt scale is determined according to the ratio of the current fourth flow process index to the fourth flow process index before the abnormal state of the electronic belt scale is processed.

7. The method according to claim 2, characterized in that: According to the electronic belt scale material flow data and the control chart coefficient, the operating flow standard deviation is calculated, including: Determine the maximum and minimum subgroup operating flow rates according to the electronic belt scale material flow data; The operating flow standard deviation is calculated according to the maximum operating flow of the subgroup, the minimum operating flow of the subgroup and the control chart coefficient.

8. An electronic belt scale material flow operating status monitoring device, characterized in that: include: Data acquisition module, used to obtain material flow data of electronic belt scale; An electronic scale material flow process index determination module, used to determine the electronic scale material flow process index according to the electronic belt scale material flow data, the upper limit of the operating flow rate and the lower limit of the operating flow rate; The operating status determination and trend graph drawing module is used to determine the operating status of the electronic belt scale material based on the electronic scale material flow process index, and draw a material flow process control trend graph according to the electronic belt scale material flow data.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the electronic belt scale material flow operating status monitoring method described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the electronic belt scale material flow operating status monitoring method according to any one of claims 1 to 7 when executed.

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