CN110197523B - Quality control graph drawing method, quality control graph drawing equipment and storage medium - Google Patents
Quality control graph drawing method, quality control graph drawing equipment and storage medium Download PDFInfo
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- CN110197523B CN110197523B CN201910509808.5A CN201910509808A CN110197523B CN 110197523 B CN110197523 B CN 110197523B CN 201910509808 A CN201910509808 A CN 201910509808A CN 110197523 B CN110197523 B CN 110197523B
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Abstract
The embodiment of the application discloses a quality control diagram drawing method, a device and a storage medium, wherein the method comprises the following steps: acquiring first measurement data of a quality control product, wherein the quantity of the first measurement data is greater than or equal to a preset quantity; drawing a first quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data; calculating the mean and standard deviation of the first measurement data; drawing a second quality control graph according to the first measurement data, the average value and the standard deviation of the first measurement data; and combining the first quality control diagram and the second quality control diagram to obtain a third quality control diagram. By adopting the embodiment of the application, the problem of false on-control or false out-of-control possibly existing can be represented, so that the error rate of the medical inspection equipment is reduced.
Description
Technical Field
The present invention relates to the field of quality control, and in particular, to a quality control diagram drawing method, apparatus, and storage medium.
Background
The quality control diagram is a short-term quality control diagram and is a statistical diagram which is designed, recorded and evaluated according to the quality of the inspection process and whether the inspection process is in a control state. Commonly used quality control charts include: livier-jennies Levey-Jennings quality control diagrams, westgard quality control diagrams, Z-score diagrams, and the like.
However, the quality control diagram depends on the quality control data sequence, and a large number of data sequences are required to calculate the mean value and the standard deviation to draw the quality control diagram. Taking Levey-Jennings quality Control diagram as an example, data of a quality Control product needs to be continuously measured for more than 20 days, a mean value and a Standard Deviation (SD) of the data are obtained, the mean value is taken as a Control center Line (Control Line, CL), +3SD is taken as an upper Control Line (Up Control Line, UCL), and-3 SD is taken as a lower Control Line (Low Control Line, LCL), so that the quality Control diagram can be obtained, and the obtained quality Control diagram presents a statistical diagram of a measured quality Control data sequence and a calculated mean value and Standard deviation of the measured quality Control data sequence, and does not reflect a deviation relation with a quality Control product target value and a set Standard deviation, namely, does not represent a possible false Control or false runaway problem. Therefore, how to characterize the possible false control problem or false runaway problem through the quality control graph is a problem that the skilled person always aims to solve.
Disclosure of Invention
The embodiment of the application provides a quality control diagram drawing method, quality control diagram drawing equipment and a storage medium.
In a first aspect, an embodiment of the present application provides a quality control map drawing method, where the method includes:
acquiring first measurement data of a quality control product, wherein the number of the first measurement data is greater than or equal to a preset number;
drawing a first quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data;
calculating an average value of the first measurement data and a standard deviation of the first measurement data;
drawing a second quality control graph according to the first measurement data, the average value and the standard deviation of the first measurement data;
and combining the first quality control diagram and the second quality control diagram to obtain a third quality control diagram.
According to the embodiment of the application, the quality control graph obtained by drawing the preset target value of the quality control product, the preset standard deviation of the quality control product and the measurement data of the quality control product, the measurement data of the same quality control product, the average value and the standard deviation of the measurement data of the quality control product are drawn to obtain the quality control graph, and the quality control graph is combined to obtain the new quality control graph, the new quality control graph can reflect the possible false control or false out-of-control problems, and the corresponding medical inspection equipment can be correspondingly adjusted according to the quality control graph obtained by combination, so that the error rate of the medical inspection equipment can be favorably reduced.
In one possible implementation manner, the first quality control graph includes an upper control line obtained by adding 3 times of the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times of the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after point tracing according to the first measurement data.
In one possible implementation manner, before the obtaining of the first measurement data of the quality control product, where a quantity of the first measurement data is greater than or equal to a preset quantity, the method further includes:
acquiring second measurement data of the quality control product, wherein the quantity of the second measurement data is less than the preset quantity;
and drawing a fourth quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the second measurement data.
According to the embodiment of the application, the drawing of the quality control graph is completed by utilizing the preset target value and the preset standard deviation of the quality control product, so that the problem that the quality control graph cannot be drawn under the condition that the average value and the standard deviation are not calculated by using a large amount of measurement data is solved.
In one possible implementation manner, the fourth quality control graph includes an upper control line obtained by adding 3 times to the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times to the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a broken line obtained by sequentially connecting the preset target value and the preset standard deviation after points are drawn according to the second measurement data.
In one possible implementation manner, the plotting a second quality control graph according to the first measurement data, the average value, and a standard deviation of the first measurement data includes:
switching a drawing channel of the quality control diagram to be a drawing channel for drawing the quality control diagram according to the average value of the first measurement data and the standard deviation of the first measurement data;
and drawing the second quality control diagram on the switched drawing channel according to the first measurement data, the average value and the standard deviation of the first measurement data.
In the embodiment of the present application, the drawing channel of the quality control diagram can be switched, which embodies the flexibility of drawing the quality control diagram in the embodiment of the present application.
In one possible implementation manner, the combining the first quality control diagram and the second quality control diagram to obtain a third quality control diagram includes:
receiving a merging instruction of the first quality control diagram and the second quality control diagram;
and merging the first quality control diagram and the second quality control diagram according to the merging instruction to obtain a third quality control diagram.
In one possible implementation manner, the third quality control map includes information of the first measurement data, the preset target value, the preset standard deviation, the average value, and the standard deviation of the first measurement data.
In the embodiment of the application, the finally combined quality control graph comprises the measurement data information of the quality control product, the preset target value information, the preset standard deviation information, and the average value and standard deviation information of the measurement data of the quality control product, and the possible false control or false out-of-control problem can be represented through the information, so that corresponding adjustment can be performed on corresponding medical inspection equipment, and the error rate of the medical inspection equipment is favorably reduced.
In a second aspect, an embodiment of the present application provides a quality control map drawing apparatus, including:
the device comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring first measurement data of a quality control product, and the number of the first measurement data is greater than or equal to a preset number;
the drawing unit is used for drawing a first quality control graph according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data;
a calculation unit configured to calculate an average value of the first measurement data and a standard deviation of the first measurement data;
the drawing unit is further used for drawing a second quality control diagram according to the first measurement data, the average value and the standard deviation of the first measurement data;
and the merging unit is used for merging the first quality control diagram and the second quality control diagram to obtain a third quality control diagram.
In one possible implementation manner, the first quality control graph includes an upper control line obtained by adding 3 times to the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times to the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a broken line obtained by sequentially connecting the preset target value and the preset standard deviation after points are drawn according to the first measurement data.
In one possible implementation manner, the obtaining unit is further configured to obtain second measurement data of the quality control product before obtaining first measurement data of the quality control product, where a quantity of the first measurement data is greater than or equal to a preset quantity, and a quantity of the second measurement data is less than the preset quantity;
the drawing unit is further used for drawing a fourth quality control graph according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the second measurement data.
In one possible implementation manner, the fourth quality control graph includes an upper control line obtained by adding 3 times of the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times of the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after the points are drawn according to the second measurement data.
In one possible implementation manner, the drawing unit includes a switching unit, configured to switch a drawing channel of a quality control map to a drawing channel of the quality control map according to an average value of the first measurement data and a standard deviation of the first measurement data;
and the drawing unit is further used for drawing the second quality control diagram according to the first measurement data, the average value and the standard deviation of the first measurement data in the switched drawing channel.
In one possible implementation manner, the merging unit includes a receiving unit, configured to receive a merging instruction of the first quality control diagram and the second quality control diagram;
the merging unit is further configured to merge the first quality control diagram and the second quality control diagram according to the merging instruction to obtain a third quality control diagram.
In one possible implementation manner, the third quality control map includes information of the first measurement data, the preset target value, the preset standard deviation, the average value, and the standard deviation of the first measurement data.
In a third aspect, an embodiment of the present application provides a quality control diagram drawing device, which includes a processor, an input module, an output module, and a memory, where the processor, the input module, the output module, and the memory are connected to each other, where the memory stores a computer program, and when the program is executed by the processor, the method for drawing a quality control diagram according to any one of the first aspect and possible implementation manners of the first aspect can be implemented.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, can implement the quality control graph drawing method according to any one of the foregoing first aspect and possible implementations thereof.
In summary, in the embodiment of the present application, a quality control diagram obtained by drawing the preset target value of the quality control product, the preset standard deviation of the quality control product, and the measurement data of the quality control product, and a quality control diagram obtained by drawing the measurement data of the same quality control product, the average value of the measurement data of the quality control product, and the standard deviation are combined to obtain a new quality control diagram, where the new quality control diagram can reflect a possible false control problem or false out-of-control problem, and the corresponding medical inspection equipment can be correspondingly adjusted according to the quality control diagram obtained by combining, thereby being beneficial to reducing the error rate of the medical inspection equipment.
Drawings
The drawings used in the embodiments of the present application will be described below.
Fig. 1 is a schematic flow chart illustrating a quality control diagram provided in an embodiment of the present application;
FIGS. 2A and 2B are schematic diagrams of quality control diagrams provided by embodiments of the present application;
fig. 3 is a schematic diagram of a quality control diagram provided in an embodiment of the present application;
FIGS. 4A and 4B are schematic diagrams of quality control diagrams provided by embodiments of the present application;
fig. 5 is a schematic diagram of a quality control diagram provided in an embodiment of the present application;
fig. 6 is a schematic diagram of a quality control diagram provided in an embodiment of the present application;
fig. 7 is a flowchart illustrating a quality control map drawing method according to an embodiment of the present disclosure;
fig. 8 is a schematic hardware configuration diagram of a quality control map drawing apparatus according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram of a logical structure of a quality control map drawing apparatus according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
The following are detailed below.
The quality control chart is also called as control chart. The first quality control chart was produced in 1924, 5, 16, and was first proposed by morse houttuy, a bell laboratory in the united states, and the first quality control chart was an important tool for scientific management. It is a chart with control boundary to distinguish whether the cause of deviation is accidental or systematic, and can provide the information of the cause of systematic deviation, so as to judge the state of the production process and make it in control. Commonly used quality control charts include: levey-Jennings quality control charts, westgard quality control charts, Z-score charts, and the like.
For convenience of description, the entire scheme is illustrated by taking a Levey-Jennings quality control diagram as an example, and it should be noted that the scheme is also applicable to other quality control diagrams, such as Westgard quality control diagrams, Z-fraction diagrams and the like.
The control map may include three lines parallel to the horizontal axis: a Center Line (CL), an Upper Control Line (UCL), and a Lower Control Line (LCL), and a sequence of points with sample statistics values extracted in time order. The UCL, CL, and LCL are collectively called Control Line (Control Line), and usually the Control limit is set at a position ± 3 times the standard deviation. The centerline is the average of the controlled statistics, and the upper and lower control limits are several times the standard deviation from the centerline. If the dots in the control map fall outside the UCL and LCL or the arrangement of the dots between the UCL and LCL is not random, a process anomaly is indicated.
By mean value
-range R control map as an example to illustrate the construction principle and the method of use of the control map. The quality characteristics of the inspected product are designed to follow a normal distribution N (mu, sigma) when the production process is in a control state 2 ) Average number of samples with sample size n
Obey N (N μ, σ 2/N), where μ is the sample mean and σ is the sample standard deviation. Thus, for
Control the flow of
With + k σ as an upper control limit and-k σ as a lower control limit, the value of k (e.g., k can be 2 or 3, etc.) is chosen appropriately to ensure that the average number of samples is the mean when the process is in a control state
Are located with high probability between the upper and lower control limits and should be randomly arranged. For example, when the control limit is set at ± 3 times the standard deviation of the sample, the probability is 99.7%. If a certain sample point falls outside the control limit, the production process is considered out of control; this is likely to occur even when the production process is in a control state, but the probability is only 0.3%, and the probability is very small. In the control chart, positions ± 3 times the standard deviation of the sample are generally taken, and the resulting upper and lower control limits are said to be taken on the 3 σ principle. Although the probability of falling within these limits is large, it is not 99.7%. With the idea of hypothesis testing, production is considered out of control by making the first type of error at rather minor risk. Yet another indication, which may be considered as out of control, is that the arrangement of dots exhibits a systematic character. E.g. having 7 successiveThe dots are located on one side of the centerline, or 7 consecutive dots appear to rise (or fall) or some periodic arrangement, which regular non-random arrangement may be a warning of loss of control.
In the preparation of
In the control chart, because mu and sigma are unknown, estimation is needed according to the long-term accumulated data in the past, and when the production process is confirmed to be in a control state, a plurality of samples (generally more than 20) are extracted, the size of each sample is n, and the calculation of each sample is carried out
And R, their average value
R values may each be
The control map and the centerline value of the R control map, and the upper and lower control limits may also be calculated according to a formula.
Based on the above description, an embodiment of the quality control map drawing method provided in the present application is described in detail below.
The drawing of the quality control diagram is completed through quality control diagram drawing equipment, the quality control diagram drawing equipment comprises a first drawing channel and a second drawing channel, and the first drawing channel can be used for drawing the quality control diagram according to the measurement data, the preset target value and the preset standard deviation of the quality control product; the second drawing channel may be configured to draw a quality control diagram according to the measurement data of the quality control product, the calculated average value of the measurement data of the quality control product, and the calculated standard deviation of the measurement data of the quality control product; the quality control diagram drawing device can also combine the quality control diagram obtained by drawing the first drawing channel with the quality control diagram obtained by drawing the second drawing channel to obtain a new quality control diagram. The new quality control map includes information of the measurement data of the quality control product, the preset target value, the preset standard deviation, the average value, and the calculated standard deviation of the measurement data of the quality control product. The preset target value and the preset standard deviation may be respectively a target value and a standard deviation of the quality control product, which are labeled by a manufacturer of the quality control product.
Please refer to the flow chart of the quality control diagram in fig. 1.
First, the quality control diagram drawing device determines the number N of the measurement data according to the obtained measurement data of the quality control product, and if the number N is smaller than a preset number, for example, the preset number may be any integer greater than or equal to 20, the device may draw a quality control diagram according to the obtained measurement data of the quality control product, a preset target value, and a preset standard deviation. If the number N is greater than or equal to the preset number, on one hand, the above device may also draw a quality control diagram according to the obtained quality control measurement data, the preset target value, and the preset standard deviation, specifically, the quality control diagram may be drawn according to the obtained quality control measurement data, the preset target value, and the preset standard deviation in a first drawing channel, and for convenience of description, the quality control diagram is referred to as a first quality control diagram; on the other hand, the above-mentioned device calculates the average value of the measurement data and the standard deviation of the measurement data according to the acquired measurement data of the quality control product, and then plots the quality control diagram according to the acquired measurement data, the calculated average value and the calculated standard deviation. It should be noted that the fourth quality control diagram is different from the first quality control diagram, the measurement data displayed in the fourth quality control diagram is the measurement data when the number N is smaller than the preset number, and the measurement data displayed in the first quality control diagram is the measurement data when the number N is greater than or equal to the preset number. In order to further analyze the effect of the quality control, the above apparatus may combine the first quality control diagram and the second quality control diagram to obtain a new quality control diagram, which is referred to as a third quality control diagram; specifically, the device may superimpose the first quality control diagram and the second quality control diagram to obtain the third quality control diagram. Whether a false in-control problem and/or a false out-of-control problem exists can be judged by analyzing the third quality control diagram, so that corresponding adjustment can be performed on corresponding medical inspection equipment, and the error rate of the medical inspection equipment is reduced.
The following examples illustrate how to determine whether the measured process is in a controlled state by analyzing the quality control diagram.
For example, in the case where N is greater than or equal to the predetermined number, the first quality control chart and the second quality control chart obtained by the above-described drawing may be respectively referred to fig. 2A and fig. 2B, and the abscissa of fig. 2A and fig. 2B represents time or a sample number, because the measurement of a sample can be performed only once a day, and only one or one group of samples, which is a quality control product, can be measured each time, and the group of samples can be taken as a whole, and the ordinate of fig. 2A and fig. 2B represents the size of measurement data of the quality control product.
In fig. 2A, UCL ' is an upper control line of the first quality control diagram, and may be a horizontal line corresponding to a value obtained by adding k (k is an integer greater than 1) times a preset standard deviation to a preset target value, where k may be 3, lcl ' is a lower control line of the first quality control diagram, and may be a horizontal line corresponding to a value obtained by subtracting k times the preset standard deviation from the preset target value, where k may be 3, cl ' is a control center line, and may be a horizontal line corresponding to the preset target value; fig. 2A also includes broken lines obtained by plotting points of the measurement data of the samples and then connecting the points in sequence, where each point represents one measurement data.
In fig. 2B, UCL is an upper control line of the second quality control map, and may be a horizontal line corresponding to the value obtained by adding k times the calculated standard deviation to the calculated average value, where k may be 3, lcl is a lower control line of the second quality control map, and may be a horizontal line corresponding to the value obtained by subtracting k times the calculated standard deviation from the calculated average value, where k may be 3, cl may be a control center line, and may be a horizontal line corresponding to the calculated average value; fig. 2B further includes broken lines obtained by sequentially connecting the points of the measurement data of the samples, the measurement data of the sample corresponding to the broken line included in fig. 2B is the same as the measurement data of the sample corresponding to the broken line included in fig. 2A, and each point represents one measurement data.
Fig. 2A and 2B are combined to obtain the third control diagram shown in fig. 3. Since the abscissa of fig. 2A and 2B is the same and the measurement data shown in the figures are the same, the sequences of the points of the measurement data shown in the figures after the combination of fig. 2A and 2B are completely overlapped, but the upper and lower control lines of the two figures are not the same and are not overlapped, but are respectively shown in fig. 3. Specifically, the combination may be a superposition combination.
For convenience of description, the present application is described by taking, as an example, a rule that the point 1 is determined to be out of control when the point 1 falls outside the range of the upper and lower control lines, because there are many rules for determining out of control according to the quality control map, for example, the range may be out of a range of ± 2 times of standard deviation of 2 points on the same side of the center line CL from consecutive points 3, the consecutive points 6 may be increased or decreased incrementally, the adjacent points of the consecutive points 14 may alternate up and down, the point 1 may fall outside the range of the upper and lower control lines, and so on.
Observing fig. 3, it can be found that if the measured data point 201 falls outside the range of the upper and lower control lines calculated according to the measured data, it can be determined that the measurement process is out of control for the quality control diagram of the upper and lower control lines calculated according to the measured data; however, for the quality control map of the upper and lower control lines obtained from the preset target value and the preset standard deviation, the measurement data point 201 falls within the range of the upper and lower control lines thereof, and other measurement data points also fall within the range of the upper and lower control lines, and thus, it can be determined that the measurement process is in control. Through comparison and analysis, the situation of false runaway can occur for the quality control graphs of the upper control line and the lower control line calculated according to the measurement data, so that the whole measurement process can be further checked or corresponding adjustment can be carried out on the corresponding medical inspection equipment on the basis of the analysis until the problem is solved, so that the measurement processes in the two quality control graphs are controlled.
In addition, as shown in fig. 3, it is found that the upper control line UCL, the lower control line LCL, and the average control limit CL calculated from the measurement data of the quality control product are shifted downward compared to the corresponding upper control line UCL ', the lower control line LCL ', and the average control limit CL ' obtained from the preset target value and the preset standard deviation of the quality control product, i.e., the entire control range is shifted downward, which reflects the problem of accuracy shift of the quality control.
For another example, in the case where N is greater than or equal to the preset number, the first and second quality control maps obtained by the above-described drawing may respectively refer to fig. 4A and 4B, and the abscissa of fig. 4A and 4B is time or a sample number.
Similarly, in fig. 4A, UCL ' is an upper control line of the first quality control diagram, and may be a horizontal line corresponding to a value obtained by adding k (k is an integer greater than 1) times a preset standard deviation to a preset target value, where k may be 3, lcl ' is a lower control line of the first quality control diagram, and may be a horizontal line corresponding to a value obtained by subtracting k times a preset standard deviation from the preset target value, where k may be 3, cl ' is a control center line, and may be a horizontal line corresponding to the preset target value; fig. 4A also includes broken lines obtained by plotting measurement data of the samples and then connecting the plotted points in sequence, each point representing one measurement data.
In fig. 4B, UCL is an upper control line of the second quality control map, and may be a horizontal line corresponding to the value obtained by adding k times the calculated standard deviation to the calculated average value, where k may be 3, lcl is a lower control line of the second quality control map, and may be a horizontal line corresponding to the value obtained by subtracting k times the calculated standard deviation from the calculated average value, where k may be 3, cl is a control center line, and may be a horizontal line corresponding to the calculated average value; fig. 2B further includes broken lines obtained by sequentially connecting the points of the measurement data of the samples, the measurement data of the sample corresponding to the broken line included in fig. 4B is the same as the measurement data of the sample corresponding to the broken line included in fig. 2A, and each point represents one measurement data.
Fig. 4A and 4B are combined to obtain a third quality control diagram shown in fig. 5. Since the abscissa of fig. 4A and fig. 4B is the same and the measurement data shown in the figures are the same, the sequences of the points of the measurement data shown in the figures after the combination of fig. 4A and fig. 4B are completely overlapped, but the upper and lower control lines of the two figures are not the same and are not overlapped, but are respectively shown in fig. 5. Specifically, the combination may be a superposition combination.
The scheme of the application is also illustrated by taking the rule that if the point 1 is out of the range of the upper and lower control lines, the control is determined to be out of control as an example.
As can be seen from fig. 5, if the measured data point 202 falls within the range of the upper and lower control lines calculated according to the measured data, and other measured data points also fall within the range of the upper and lower control lines, then the quality control diagram of the upper and lower control lines calculated according to the measured data can determine that the measurement process is under control; however, for a quality control map of the up-down control line obtained from the preset target value and the preset standard deviation, the measurement process is out of control where 202 the measurement data falls outside the range of its up-down control line. Through comparative analysis, it can be found that a false control condition may occur in the quality control diagram of the upper and lower control lines calculated according to the measurement data, so that the whole measurement process can be further checked or corresponding adjustment can be made on the corresponding medical inspection equipment on the basis of the analysis until the problem is solved, so that the measurement processes in the two quality control diagrams are controlled.
For example, referring to fig. 6, fig. 6 is a new quality control diagram obtained by superimposing and combining a quality control diagram drawn according to a preset target value and a preset standard deviation of a quality control product and a quality control diagram drawn according to an average value and a standard deviation calculated from measurement data of the quality control product. Observation shows that the upper control line UCL calculated by the measurement data of the quality control product is higher than the upper control line UCL 'calculated by the preset target value and the preset standard deviation of the quality control product, and the lower control line LCL calculated by the measurement data of the quality control product is lower than the lower control line LCL' calculated by the preset target value and the preset standard deviation of the quality control product, namely, the whole control range is enlarged, which reflects the problem of the deterioration of the accuracy of the quality control.
Referring to fig. 7, fig. 7 is a schematic flow chart of a quality control diagram drawing method according to an embodiment of the present application, and the specific steps of the method are as follows:
step 701, obtaining first measurement data of a quality control product, wherein the number of the first measurement data is greater than or equal to a preset number.
In a specific embodiment, the quality control drawing device obtains the measurement data of the quality control product, then determines whether the quantity of the obtained measurement data of the quality control product is greater than or equal to a preset quantity, and if so, executes step 702. The measurement data of the quality control products of which the number is greater than or equal to the preset number is the first measurement data, and the first measurement data described later is also the measurement data of the quality control products of which the number is greater than or equal to the preset number.
Specifically, the preset number may be greater than or equal to 20. For example, since the measurement data of the quality control product can be measured only once a day, one measurement data can be obtained each time, and after 20 data are obtained through 20 consecutive measurements for 20 days or more, the quality control graph can be drawn based on the data.
Specifically, the measurement data acquired by the quality control diagram drawing device may be input into the quality control diagram drawing device by a measurer through an input device, or may be acquired by the quality control diagram drawing device from another device through a communication interface, for example, the another device interacts with the quality control diagram drawing device to send the measurement data to the quality control diagram drawing device.
And step 702, drawing a first quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data.
In a specific embodiment, the first quality control map includes an upper control line obtained by adding 3 times of the preset standard deviation to the preset target value and a lower control line obtained by subtracting 3 times of the preset standard deviation from the preset target value; the abscissa of the first quality control graph represents the serial number of the data, for example, the data measured on the first day is marked as 1, the data measured on the second day is marked as 2, and so on, and each measured data has its corresponding serial number; the ordinate of the first quality control diagram represents the size of the measurement data of the quality control product, and the first quality control diagram further comprises a control center line equal to the value of the preset target value and a broken line obtained by tracing points according to the first measurement data and then sequentially connecting the points. A specific quality control diagram can be seen in fig. 2A.
Step 703, calculating the average value of the first measurement data and the standard deviation of the first measurement data.
And under the condition that the quantity of the measurement data of the quality control products acquired by the quality control diagram drawing equipment is greater than the preset quantity, the quality control diagram drawing equipment calculates the average value and the standard deviation of the measurement data according to the acquired measurement data of the quality control products.
And 704, drawing a second quality control graph according to the first measurement data, the average value and the standard deviation of the first measurement data.
After the average value and the standard deviation of the measurement data are obtained, the quality control diagram drawing device draws a second quality control diagram according to the measurement data, the average value and the standard deviation. For example, the description related to the second quality control diagram refers to the description in fig. 2B, and is not repeated herein.
Step 705, combining the first quality control diagram and the second quality control diagram to obtain a third quality control diagram.
In a specific embodiment, after obtaining the first quality control diagram and the second quality control diagram, the quality control diagram drawing device superimposes and merges the two quality control diagrams into a new quality control diagram, and the related description of the new quality control diagram may refer to the related description of fig. 3 or fig. 5, which is not described herein again.
According to the embodiment of the application, the quality control graph obtained by drawing the preset target value of the quality control product, the preset standard deviation of the quality control product and the measurement data of the quality control product, the measurement data of the same quality control product, the average value and the standard deviation of the measurement data of the quality control product are drawn to obtain the quality control graph, and the quality control graph is combined to obtain the new quality control graph, the new quality control graph can reflect the possible false control or false out-of-control problems, and the corresponding medical inspection equipment can be correspondingly adjusted according to the quality control graph obtained by combination, so that the error rate of the medical inspection equipment can be favorably reduced.
In one possible implementation, the merging the first quality control map and the second quality control map to obtain a third quality control map includes: receiving a merging instruction of the first quality control diagram and the second quality control diagram; and merging the first quality control diagram and the second quality control diagram according to the merging instruction to obtain a third quality control diagram.
In a specific embodiment, after the first quality control diagram and the second quality control diagram are obtained by drawing, the quality control diagram drawing device may obtain data information of the two quality control diagrams after receiving an instruction to merge the two quality control diagrams, and then merge the two quality control diagrams into a new quality control diagram.
Specifically, the quality control diagram drawing device may include a button for superimposing and combining the quality control diagrams, and in response to a click or a press of the button, the quality control diagram superimposes and combines the first quality control diagram and the second quality control diagram drawn as described above.
In the embodiment of the application, the finally combined quality control graph comprises the measurement data information of the quality control product, the preset target value information, the preset standard deviation information, and the average value and the standard deviation information of the measurement data of the quality control product, and the possible problem of false control or false out-of-control can be represented through the information, so that the corresponding medical inspection equipment can be correspondingly adjusted, and the error rate of the medical inspection equipment can be favorably reduced.
In one possible implementation manner, before the obtaining of the first measurement data of the quality control product, where a quantity of the first measurement data is greater than or equal to a preset quantity, the method further includes:
acquiring second measurement data of the quality control product, wherein the quantity of the second measurement data is less than a preset quantity;
and drawing a fourth quality control graph according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the second measurement data.
Specifically, the fourth quality control graph includes an upper control line obtained by adding 3 times to the preset target value and the preset standard deviation, a lower control line obtained by subtracting 3 times from the preset target value and the preset standard deviation, a control center line equal to the preset target value, and a broken line obtained by sequentially connecting the preset target value and the preset standard deviation after the points are drawn according to the second measurement data.
In a specific embodiment, the quality control diagram drawing device acquires measurement data of a quality control product, and then determines a size relationship between the amount of the acquired measurement data of the quality control product and a preset amount, and if the amount of the measurement data is smaller than the preset amount, the quality control diagram drawing device may draw a quality control diagram according to a preset target value, a preset standard deviation, and the measurement data of the quality control diagram. The measurement data of the quality control products of which the number is smaller than the preset number is the second measurement data, and the second measurement data described later is also the measurement data of the quality control products of which the number is smaller than the preset number. Specifically, the preset number may be greater than or equal to 20.
According to the embodiment of the application, the drawing of the quality control graph is completed by utilizing the preset target value and the preset standard deviation of the quality control product, so that the problem that the quality control graph cannot be drawn under the condition that a large amount of measurement data is not used for calculating the average value and the standard deviation is solved.
In one possible embodiment, the drawing a fourth quality control graph according to the preset target value of the quality control product, the preset standard deviation of the quality control product, and the second measurement data includes:
and drawing the fourth quality control graph in a first drawing channel according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the second measurement data, wherein the first drawing channel is a drawing channel for drawing the quality control graph according to the preset target value of the quality control product and the preset standard deviation of the quality control product.
In one possible embodiment, the plotting a first quality control map according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data includes:
and drawing the first quality control graph in a first drawing channel according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data, wherein the first drawing channel is a drawing channel for drawing the quality control graph according to the preset target value of the quality control product and the preset standard deviation of the quality control product.
In the embodiment of the application, the drawing channel of the quality control graph is specially completed by using the preset target value and the preset standard deviation of the quality control product, so that the problem that the quality control graph cannot be drawn under the condition that a large amount of measurement data is not used for calculating the average value and the standard deviation is solved.
In one possible embodiment, the plotting a second quality control map according to the first measurement data, the average value, and the standard deviation of the first measurement data includes:
switching a drawing channel of the quality control diagram to be a drawing channel for drawing the quality control diagram according to the average value of the first measurement data and the standard deviation of the first measurement data;
and drawing the second quality control diagram on the switched drawing channel according to the first measurement data, the average value and the standard deviation of the first measurement data.
In a specific embodiment, the quality control diagram drawing device includes two quality control diagram drawing channels, one for drawing the quality control diagram according to the measurement data of the quality control product, the preset target value, and the preset standard deviation; and the other is used for drawing a quality control graph according to the measurement data of the quality control product, the calculated average value of the measurement data of the quality control product and the calculated standard deviation of the measurement data of the quality control product.
Meanwhile, the quality control diagram drawing device includes a switching button of the two drawing channels for switching the two drawing channels interactively, for example, if the quality control diagram drawing device is in a state of a first drawing channel, the quality control diagram drawing device will be switched to a state of a second drawing channel in response to a click or press operation of the switching button, and conversely, if the quality control diagram drawing device is in a state of a second drawing channel, the quality control diagram drawing device will be switched to a state of the first drawing channel in response to a click or press operation of the switching button.
After the quality control diagram drawing device finishes drawing the first quality control diagram, the quality control diagram drawing device responds to clicking or pressing operation of the switching button, and the drawing channel is switched to a second drawing channel by the quality control diagram drawing device so as to finish drawing of the second quality control diagram.
In the embodiment of the present application, there are two drawing channels, one is used to complete the drawing of the quality control diagram by using the preset target value and the preset standard deviation of the quality control product, and the other is used to complete the drawing of the quality control diagram by using the average value and the standard deviation calculated according to a large amount of measurement data, and the two drawing channels are switchable, which embodies the flexibility and diversity of the drawing of the quality control diagram in the embodiment of the present application.
In one possible embodiment, the plotting a second quality control map according to the first measurement data, the average value, and the standard deviation of the first measurement data includes:
and drawing a second quality control diagram on the second drawing channel according to the first measurement data, the average value and the standard deviation of the first measurement data.
In one possible embodiment, the third quality control map includes information of the first measurement data, the preset target value, the preset standard deviation, the average value, and the standard deviation of the first measurement data.
In a specific embodiment, the third quality control map includes an upper control line obtained by adding 3 times to the preset target value and the preset standard deviation, a lower control line obtained by subtracting 3 times to the preset target value and the preset standard deviation, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset target value after points are drawn according to the first measurement data, and also includes an upper control line obtained by adding 3 times to the average value and the standard deviation of the first measurement data, a lower control line obtained by subtracting 3 times to the average value and the standard deviation of the first measurement data, and a control center line equal to the average value.
In the embodiment of the application, the finally combined quality control graph comprises the measurement data information of the quality control product, the preset target value information, the preset standard deviation information, and the average value and standard deviation information of the measurement data of the quality control product, and the possible false control or false out-of-control problem can be represented through the information, so that corresponding adjustment can be performed on corresponding medical inspection equipment, and the error rate of the medical inspection equipment is favorably reduced.
In one possible implementation manner, the execution sequence of the steps 701, 702, 703, 704 and 705 may also be step 701, 703, 704, 702 and 705 in sequence.
In a specific embodiment, when the measurement data of the quality control product is greater than the preset number, the average value and the standard deviation of the measurement data of the quality control product may be calculated, the second quality control diagram may be drawn according to the average value, the standard deviation and the measurement data, the first quality control diagram may be drawn according to the preset target value, the preset standard deviation and the measurement data, and the third quality control diagram may be obtained by combining the first quality control diagram and the second quality control diagram.
Of course, in one possible embodiment, when the measurement data of the quality control product is greater than the preset number, the operation of plotting the first quality control diagram and the operation of calculating the average value and the standard deviation of the measurement data may be performed simultaneously, then the second quality control diagram is plotted after the average value and the standard deviation are obtained, and then the obtained first quality control diagram and the second quality control diagram are combined to obtain the third quality control diagram.
The detailed description of the quality control diagram drawing method and the possible implementation thereof described in fig. 7 may also refer to the description in the quality control diagram drawing flow shown in fig. 1, and will not be described herein again.
Referring to fig. 8, fig. 8 is a control diagram drawing apparatus 800 according to an embodiment of the present disclosure, where the control diagram drawing apparatus 800 may be the control diagram drawing apparatus in the embodiment of the method described in fig. 1 or fig. 7. The quality control map drawing apparatus 800 includes a processor 801, a memory 802, an input module 805, and an output module 803, and the processor 801, the memory 802, the input module 805, and the output module 803 are connected to each other by a bus 804. The input module 805 is used for inputting information, such as measurement data of a quality control product, and the output module is used for outputting information, such as a drawn quality control diagram, and displaying the drawn quality control diagram.
The memory 802 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 802 is used for storing instructions and data. The communication interface 803 is used to receive and transmit data.
The processor 801 may be one or more Central Processing Units (CPUs), and in the case that the processor 801 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
The processor 801 in the quality control drawing apparatus 800 is configured to read the computer program stored in the memory 802, and execute the following operations:
acquiring first measurement data of a quality control product through an input module 805, wherein the quantity of the first measurement data is greater than or equal to a preset quantity;
drawing a first quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data;
calculating an average of the first measurement data and a standard deviation of the first measurement data;
drawing a second quality control graph according to the first measurement data, the average value and the standard deviation of the first measurement data;
and combining the first quality control diagram and the second quality control diagram to obtain a third quality control diagram.
In one possible implementation manner, the first quality control map includes an upper control line obtained by adding 3 times of the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times of the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after the points are drawn according to the first measurement data.
In one possible implementation manner, before the processor 801 obtains first measurement data of the quality control product, where a quantity of the first measurement data is greater than or equal to a preset quantity, the method further includes:
the processor 801 acquires second measurement data of the quality control product through the input module 805, wherein the quantity of the second measurement data is less than a preset quantity;
the processor 801 draws a fourth quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the second measurement data.
In one possible implementation manner, the fourth quality control graph includes an upper control line obtained by adding 3 times to the preset target value and the preset standard deviation, a lower control line obtained by subtracting 3 times to the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after the points are drawn according to the second measurement data.
In one possible implementation, the processor 801 plots a second quality control map according to the first measurement data, the average value, and the standard deviation of the first measurement data, and includes:
the processor 801 switches a drawing channel of the quality control diagram to a drawing channel of the quality control diagram according to the average value of the first measurement data and the standard deviation of the first measurement data; and drawing the second quality control diagram according to the first measurement data, the average value and the standard deviation of the first measurement data in the switched drawing channel.
In one possible implementation, the processor 801 combines the first quality control map and the second quality control map to obtain a third quality control map, including:
the processor 801 receives a merging instruction of the first quality control diagram and the second quality control diagram; and merging the first quality control diagram and the second quality control diagram according to the merging instruction to obtain a third quality control diagram.
In one possible embodiment, the third quality control map includes information of the first measurement data, the preset target value, the preset standard deviation, the average value, and the standard deviation of the first measurement data.
It should be noted that, implementation of each operation described in the description based on fig. 8 may also correspond to corresponding descriptions of the method embodiment shown in fig. 1 and fig. 7 and possible embodiments thereof, and details are not described here again.
Referring to fig. 9, fig. 9 is a control diagram drawing apparatus 900 according to an embodiment of the present application, where the control diagram drawing apparatus 900 may be the control diagram drawing apparatus in the embodiment of the method described in fig. 1 or fig. 8. The quality control drawing apparatus 900 includes:
an obtaining unit 301, configured to obtain first measurement data of a quality control product, where a quantity of the first measurement data is greater than or equal to a preset quantity;
a drawing unit 302, configured to draw a first quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product, and the first measurement data;
a calculating unit 303, configured to calculate an average value of the first measurement data and a standard deviation of the first measurement data;
the drawing unit 302 is further configured to draw a second quality control graph according to the first measurement data, the average value, and a standard deviation of the first measurement data;
a merging unit 303, configured to merge the first quality control diagram and the second quality control diagram to obtain a third quality control diagram.
In one possible implementation manner, the first quality control graph includes an upper control line obtained by adding 3 times of the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times of the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after point tracing according to the first measurement data.
In one possible implementation manner, the obtaining unit 301 is further configured to obtain second measurement data of the quality control product before obtaining first measurement data of the quality control product, where a quantity of the first measurement data is greater than or equal to a preset quantity, and a quantity of the second measurement data is less than the preset quantity;
the drawing unit 302 is further configured to draw a fourth quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product, and the second measurement data.
In one possible implementation manner, the fourth quality control graph includes an upper control line obtained by adding 3 times of the preset standard deviation to the preset target value, a lower control line obtained by subtracting 3 times of the preset standard deviation from the preset target value, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after the points are drawn according to the second measurement data.
In one possible implementation manner, the drawing unit 302 includes a switching unit, configured to switch a drawing channel of a quality control map to a drawing channel of the quality control map according to an average value of the first measurement data and a standard deviation of the first measurement data;
the drawing unit 302 is further configured to draw the second quality control graph according to the first measurement data, the average value, and the standard deviation of the first measurement data in the switched drawing channel.
In one possible implementation manner, the merging unit 303 includes a receiving unit, configured to receive a merging instruction of the first quality control diagram and the second quality control diagram;
the merging unit 303 is further configured to merge the first quality control diagram and the second quality control diagram according to the merging instruction, so as to obtain a third quality control diagram.
In one possible implementation manner, the third quality control map includes information of the first measurement data, the preset target value, the preset standard deviation, the average value, and the standard deviation of the first measurement data.
It should be noted that the implementation of each unit described in the description based on fig. 9 may also correspond to the corresponding description of the method embodiment shown in fig. 1 and fig. 7 and possible embodiments thereof, and details are not repeated here.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method described in fig. 7 and the method flow corresponding to the possible implementation manner are implemented.
In summary, in the embodiment of the present application, a quality control diagram obtained by drawing the preset target value of the quality control product, the preset standard deviation of the quality control product, and the measurement data of the quality control product, and a quality control diagram obtained by drawing the measurement data of the same quality control product, the average value of the measurement data of the quality control product, and the standard deviation are combined to obtain a new quality control diagram, where the new quality control diagram can reflect a possible false control problem or false runaway problem, and the corresponding medical inspection equipment can be correspondingly adjusted according to the combined quality control diagram, thereby contributing to reducing the error rate of the medical inspection equipment.
Those skilled in the art can understand that all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer readable storage medium and can include the processes of the method embodiments described above when executed.
In the several embodiments provided in the present invention, it should be understood that the disclosed server and method may be implemented in other ways. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A quality control map drawing method is characterized by comprising the following steps:
acquiring first measurement data of a quality control product, wherein the number of the first measurement data is greater than or equal to a preset number;
drawing a first quality control diagram according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the first measurement data;
calculating an average value of the first measurement data and a standard deviation of the first measurement data;
drawing a second quality control graph according to the first measurement data, the average value and the standard deviation of the first measurement data;
and combining the first quality control diagram and the second quality control diagram to obtain a third quality control diagram.
2. The method according to claim 1, wherein the first quality control map comprises an upper control line of the preset target value plus 3 times the preset standard deviation, a lower control line of the preset target value minus 3 times the preset standard deviation, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after the first measurement data is plotted.
3. The method of claim 1, wherein before acquiring the first measurement data of the quality control product, the quantity of the first measurement data is greater than or equal to a preset quantity, the method further comprises:
acquiring second measurement data of the quality control product, wherein the quantity of the second measurement data is less than a preset quantity;
and drawing a fourth quality control graph according to the preset target value of the quality control product, the preset standard deviation of the quality control product and the second measurement data.
4. The method according to claim 3, wherein the fourth quality control map comprises an upper control line of the preset target value plus 3 times the preset standard deviation, a lower control line of the preset target value minus 3 times the preset standard deviation, a control center line equal to the preset target value, and a polyline obtained by sequentially connecting the preset target value and the preset standard deviation after the second measurement data is plotted.
5. The method of any of claims 1 to 4, wherein said plotting a second quality control map from said first measurement, said mean, and a standard deviation of said first measurement comprises:
switching a drawing channel of the quality control diagram to be a drawing channel for drawing the quality control diagram according to the average value of the first measurement data and the standard deviation of the first measurement data;
and drawing the second quality control diagram according to the first measurement data, the average value and the standard deviation of the first measurement data in the switched drawing channel.
6. The method of claim 5, wherein the combining the first quality control map and the second quality control map to obtain a third quality control map comprises:
receiving a merging instruction of the first quality control diagram and the second quality control diagram;
and merging the first quality control diagram and the second quality control diagram according to the merging instruction to obtain a third quality control diagram.
7. The method of claim 6, wherein the third quality control map comprises information of the first measurement data, the preset target value, the preset standard deviation, the average value, and a standard deviation of the first measurement data.
8. A quality control mapping apparatus comprising means for performing the method of any of claims 1 to 7.
9. A quality control mapping apparatus comprising a processor, an input module, an output module and a memory, the processor, the input module, the output module and the memory being interconnected, wherein the memory stores a computer program which, when executed by the processor, is capable of implementing the method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which is executed by a processor to implement the method of any one of claims 1 to 7.
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