CN111330055B - Automatic adjustment method for residual disinfection time in work of disinfection cabinet - Google Patents
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Abstract
The invention relates to an automatic adjustment method of residual disinfection time in the work of a disinfection cabinet, which detects ozone concentration data R in the disinfection cabinet in real time and fits a change relation curve f (R) of the ozone concentration and a time point; comparing R with R1, if R < R1, calculating a time point T1 when R reaches R1 according to f (R), and calculating T = T1-T + Tp according to the current time point T; if R is more than or equal to R1, recording the actual time point T11 when R reaches R1, and calculating T = Tp- (T-T11) = T11-T + Tp according to the current time point T. The method can automatically calculate the residual working time in the work of the disinfection cabinet, automatically adjust according to the real-time working condition, and enable the calculated residual disinfection time to be closer to the actually required time, so that the user can more accurately master the residual time while the disinfection effect is ensured.
Description
Technical Field
The invention relates to an automatic adjustment method for residual disinfection time in the work of a disinfection cabinet.
Background
The sterilizer that uses at present adopts the mode that the user independently set up the disinfection time to work more, and the time control of sterilizer is influenced too greatly by people's subjective setting, and the operator sets up the unreasonable time that the error appears because of experience is not enough or settlement and can greatly reduced work efficiency. In addition, the sterilizing and drying time can be influenced by the quantity, the arrangement, the humidity and the overall outside room temperature of the tableware. This all makes the conventional time control methods very inflexible in the face of these variables.
Chinese utility model patent "an intelligence tableware sterilizer" of grant publication No. CN202589999U (application No. 201220214878.1), the sterilizer that wherein disclose can the ozone concentration in the real-time detection sterilizer, and then according to ozone concentration adjustment disinfection and stoving time, ensures that ozone concentration reaches the effective time of disinfection effect in the sterilizer. However, the method needs to adjust the working time of the disinfection cabinet in real time in the working process, so that the accurate disinfection time cannot be determined at the initial stage of opening the disinfection cabinet, and in the working process of the disinfection cabinet, the working time of the disinfection cabinet is uncertain, and the use experience is poor. In addition, the natural dissipation time of ozone is not considered, and the problems of long working time, electric energy waste and the like of the disinfection cabinet can be caused.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide an automatic adjustment method for the remaining disinfection time during the operation of a disinfection cabinet, aiming at the above prior art, so that the remaining disinfection time of the disinfection cabinet can be accurately adjusted in real time during the operation of the disinfection cabinet.
The second technical problem to be solved by the present invention is to provide an automatic adjustment method for the remaining disinfection time during the operation of a disinfection cabinet in view of the above prior art, which can fully utilize the disinfection effect during the natural dissipation of ozone, reduce the operation time of the disinfection components in the disinfection cabinet, and reduce the time for a user to wait for opening the disinfection cabinet on the basis of reducing energy consumption.
The third technical problem to be solved by the present invention is to provide an automatic adjustment method for the remaining disinfection time in the operation of a disinfection cabinet, which automatically adjusts the remaining operation time according to the external disturbance factors, aiming at the prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a method for automatically adjusting the residual disinfection time in the work of a disinfection cabinet is characterized in that: the method comprises the following steps:
s1, starting the disinfection cabinet to disinfect;
s2, the residual working time T of the disinfection cabinet after the disinfection work is finished is Tset, wherein Tset is the preset working time of the disinfection cabinet;
s3, detecting ozone concentration data R in the disinfection cabinet in real time, and fitting a change relation curve f (R) of the ozone concentration in the disinfection cabinet and a time point according to the obtained ozone concentration data in real time;
s4, comparing R with R1, wherein R1 is the effective sterilization concentration of ozone;
if R < R1, go to S5;
if R is more than or equal to R1, S6 is carried out;
s5, calculating a corresponding time point T1 when ozone concentration data R in the disinfection cabinet reach R1 according to f (R), and calculating the residual working time T (T1-T + Tp) of the disinfection cabinet to finish disinfection work according to the current time point T, wherein Tp is the effective disinfection time of the disinfection cabinet;
s6, recording an actual time point T11 corresponding to the time when the ozone concentration data R in the disinfection cabinet reach R1, and calculating the residual working time T (Tp- (T-T11) ═ T11-T + Tp) of the disinfection cabinet for completing the disinfection work according to the current time point T;
the technical scheme adopted by the invention for solving the second technical problem is as follows: comparing R with R2, wherein R2 > R1, R2 is a set ozone concentration threshold, and when the ozone concentration in the disinfection cabinet reaches R2 and the operation of the disinfection component is stopped, the ozone concentration can be maintained above the effective sterilization concentration R1 for a period of time Ts, wherein Ts is the natural escape time of the ozone concentration from R2 to R1;
if R is more than or equal to R2, S7 is carried out;
s7, recording the corresponding actual time point T21 when detecting that the ozone concentration data R in the disinfection cabinet is larger than or equal to R2;
s7.1, comparing T21-T11 + Ts with Tp, and if T21-T11 + Ts is more than or equal to Tp, performing S7.2; if T21-T11 + Ts < Tp, S7.3 is carried out;
s7.2, controlling to close the disinfection part, and finishing the disinfection operation of the disinfection cabinet after maintaining Tp- (T21-T11);
s7.3, controlling the disinfection component in the disinfection cabinet to work intermittently, so that the concentration of ozone in the disinfection cabinet is maintained near R2, the intermittent work duration of the disinfection component is Tp- (T21-T11 + Ts), and after the intermittent work of the disinfection component is finished, the disinfection work of the disinfection cabinet is maintained at Ts and then is finished.
Preferably, in S7.3, when the disinfection component is operated intermittently, the ozone concentration data R in the disinfection cabinet is detected in real time, when R ═ 1+ x) R2, the disinfection component is controlled to be closed, and when R ═ 1-x) R2, the disinfection component is controlled to be opened, wherein 0 < x < 1.
Preferably, 0 < x.ltoreq.0.5.
Preferably, x is 0.05.
In order to avoid the situation that the T on the disinfection cabinet is updated too fast and the jumping frequency is too much, the T is calculated once every set unit time length M, and meanwhile, the T is updated and displayed on the disinfection cabinet and the residual working time of the disinfection cabinet for completing the disinfection work is counted down from the T.
When calculating T, if R is more than or equal to R2, recording the corresponding actual time point T21;
and calculating the residual working time T of the disinfection cabinet from the distance to finish the disinfection work to be Tp- (T21-T11) Tp-T21 + T11 according to T21, updating on the disinfection cabinet to show that the residual working time of the disinfection cabinet from the distance to finish the disinfection work is Tp-T21 + T11, and counting down from Tp-T21 + T11.
The technical scheme adopted by the invention for solving the third technical problem is as follows: f (R) is adjusted according to the life parameter a corresponding to the service life of the disinfection part.
Further improved, Ts is adjusted with the change of the tightness of the disinfection cabinet.
Compared with the prior art, the invention has the advantages that: the automatic adjustment method for the residual disinfection time in the work of the disinfection cabinet can automatically complete the automatic calculation of the residual disinfection time in the work of the disinfection cabinet, and automatically adjust according to the real-time working condition, so that the calculated residual disinfection time is closer to the time actually required, and the user can more accurately master the residual disinfection time while the disinfection effect is ensured.
Drawings
FIG. 1 is a flow chart illustrating a method for automatically adjusting the remaining sterilization time in the operation of a sterilization cabinet according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the method for automatically adjusting the remaining disinfection time in the operation of the disinfection cabinet in the embodiment includes the following steps:
s1, starting the disinfection cabinet to disinfect;
s2, the residual working time T of the disinfection cabinet after the disinfection work is finished is Tset, wherein Tset is the preset working time of the disinfection cabinet; the Tset is an empirical time value or a time value greater than the sampling time required to fit the curve f (r);
s3, detecting ozone concentration data R in the disinfection cabinet in real time, and fitting a change relation curve f (R) of the ozone concentration in the disinfection cabinet and a time point according to the obtained ozone concentration data in real time; usually, the relation curve f (r) can be fitted after the data with the set number is acquired, in this embodiment, the curve f (r) is fitted after 60 times of sampling, and then the curve is fitted every 5min, and the sampling period of the ozone concentration data can be set to 5 s;
when the ozone concentration of the cabinet body is sampled, a plurality of sampling points are preferably arranged at positions close to tableware, and the sampling values of the plurality of sampling points are averaged to improve the accuracy of sampling data;
sampling ozone concentration data 5min after the disinfection cabinet is opened, so that the situation that the sampled data is inaccurate due to uneven distribution of ozone in the disinfection cabinet when the disinfection cabinet starts to work can be prevented;
s4, comparing R with R1 and R2; wherein R2 is more than R1, R1 is the effective sterilization concentration of ozone, R2 is the set ozone concentration threshold, when the ozone concentration in the disinfection cabinet reaches R2 and stops the work of the disinfection part, the ozone concentration can be maintained above the effective sterilization concentration R1 for a period of time Ts, wherein Ts is the natural escape time of the ozone concentration from R2 to R1;
the selection of the ozone concentration threshold R2 is very important, because the working time of the disinfection cabinet is adjusted at any time by adopting the automatic adjustment method of the residual disinfection time in the work of the disinfection cabinet, the time point when the disinfection lamp tube stops working is very critical, and the ozone can be kept for a certain time under the condition of a certain concentration under the disinfection work to ensure the disinfection, so the ozone concentration threshold R2 is set exactly, which can ensure that the ozone concentration can be maintained at the effective disinfection concentration after the disinfection lamp tube stops working and can be kept for a certain time Ts, and the ozone concentration threshold R2 cannot be set too high, thereby avoiding the situations of overlong disinfection time and electric energy waste;
if R is less than R1, namely the ozone concentration in the current disinfection cabinet does not reach the effective disinfection state, S5 is carried out;
if R is more than or equal to R1, namely the ozone concentration in the current disinfection cabinet has reached the effective disinfection state but not reached the ozone concentration threshold, S6 is carried out;
if R is more than or equal to R2, S7 is carried out;
s5, calculating a corresponding time point T1 when ozone concentration data R in the disinfection cabinet reach R1 according to f (R), and calculating the residual working time T which is T1-T + Tp when the disinfection cabinet is away from the current time point T to finish disinfection work, wherein Tp is the effective disinfection time of the disinfection cabinet, namely the minimum time when the ozone concentration is maintained above R1 and the target disinfection effect is achieved, and Tp is a constant;
s6, recording an actual time point T11 corresponding to the time when the ozone concentration data R in the disinfection cabinet reach R1, and calculating the residual working time T (Tp- (T-T11) ═ T1-T + Tp) of the disinfection cabinet for completing the disinfection work according to the current time point T;
s7, recording the corresponding actual time point T21 when detecting that the ozone concentration data R in the disinfection cabinet is larger than or equal to R2;
in order to reduce the total working time of the disinfection cabinet as much as possible on the basis of ensuring the effective disinfection time, the following steps are carried out:
s7.1, comparing T21-T11 + Ts with Tp, and if T21-T11 + Ts is more than or equal to Tp, performing S7.2; if T21-T11 + Ts < Tp, S7.3 is carried out;
s7.2, controlling to close the disinfection part, and finishing the disinfection operation of the disinfection cabinet after maintaining Tp- (T21-T11);
s7.3, controlling the disinfection component in the disinfection cabinet to work intermittently, so that the concentration of ozone in the disinfection cabinet is maintained near R2, the intermittent work duration of the disinfection component is Tp- (T21-T11 + Ts), and after the intermittent work of the disinfection component is finished, the disinfection work of the disinfection cabinet is maintained at Ts and then is finished;
meanwhile, in S7.3, when the disinfection component operates intermittently, the ozone concentration data R in the disinfection cabinet is detected in real time, when R ═ 1+ x) R2, the disinfection component is controlled to be closed, and when R ═ 1-x) R2, the disinfection component is controlled to be opened, where 0 < x < 1, and a preferred range 0 < x ≦ 0.5, where x ═ 0.05 in this embodiment, can be obtained according to experimental data.
If the updating process of T is too fast, the situation that the number of T value jumps is too many easily occurs when the display is performed on the disinfection cabinet, and only in order to avoid the problem that the number of T value jumps is too many in the display time on the disinfection cabinet, in this embodiment, the calculation of T is performed once every unit time length M set at intervals. M can be selected to be reasonable according to different disinfection contents and total disinfection time, such as M is 5 minutes. And simultaneously updating and displaying the T on the disinfection cabinet and counting down the residual working time of the disinfection cabinet for completing the disinfection work from the T.
When the calculation of T is carried out, if R is more than or equal to R2, recording the corresponding actual time point T21; and calculating the residual working time T of the disinfection cabinet from the distance to finish the disinfection work to be Tp- (T21-T11) Tp-T21 + T11 according to T21, updating on the disinfection cabinet to show that the residual working time of the disinfection cabinet from the distance to finish the disinfection work is Tp-T21 + T11, and counting down from Tp-T21 + T11. If necessary, after T is updated to Tp-T21 + T11, T is not calculated, so that the user experience can be optimized.
In daily use of the disinfection cabinet, the disinfection part is easy to age, and the sealing performance of the cabinet body is reduced along with the use. Therefore, the speed of generating ozone concentration by the disinfection part is reduced, the natural escape speed of the ozone is increased, and the working time of the corresponding disinfection cabinet is changed.
In the embodiment, f (R) is adjusted according to the service life parameter a corresponding to the service life of the disinfection component, Ts is adjusted along with the change of the tightness of the disinfection cabinet, and further the influence of the change of the external factors on the automatic adjustment of the residual working time in the work of the disinfection cabinet is reduced.
The ozone concentration at the start stage of disinfection tends to be stable after rapidly rising, and can be fitted into an approximate sin function curve, and the function expression can be approximated as
Wherein a determines the limit value of the concentration of ozone generated by the disinfection lamp, and the parameter is related to the performance of the disinfection lamp, only changes along with the aging of the disinfection lamp and can be regarded as a constant value in a certain period of time. And b according to the interior of the boxThe situation will change. Reading the point every 5s during the work of the disinfection cabinet, and totally taking 60 times according to the expression
And calculating and taking an average value.
Fitting a curve to the concentration
The parameter a is a constant value as a measure of the limit of the sterilization ability in a short period of time. However, as the sterilizing lamp tube ages, a inevitably degrades. Therefore, a large error is generated by reusing the original a value.
Therefore, the method fits the attenuation generated by the increase of the value a along with the time, and estimates a more accurate value a by judging the change condition of the actual value in a period of time. The calculation of the actual a value is performed by sampling the actual values of the two points (T11, R1), (T12, R2) at the previous stage. Bring it into a concentration fitting curve
And solving and recording the actual a value of the current operation.
The factory default a value is adopted in the previous 30 times of operation of the new machine, and the parameter needs to be determined well through a large number of experiments before the machine leaves the factory. Calculating the value a by taking Z as a period of 30 times, and calculating the average value of all values a in the times from 0 to nZ as a value a when the times meet nZ (n is 1,2, 3.)τ。
A is to beτThe theoretical a value in the next cycle nZ to (n +1) Z is involved in the operation, and the above cycle is repeated in the flow.
If the actual value of a is too abnormal, such as: and the deviation from the theoretical a value exceeds 30%, and the a value calculated at the current time is discarded to ensure the data accuracy and report error warning.
Similarly, the natural ozone dissipation time Ts is also influenced by the aging of the disinfection cabinet and the poor sealing property, and if the original parameters are not adjusted, the effective disinfection time is shortened and the disinfection effect cannot be achieved.
The actual value of Ts can be determined by measuring the length of time that the ozone concentration falls from R2 to R1.
Again the default Ts value was used for the previous 30 runs. Taking 30 times as Z, and calculating the average of all Ts values in the times from 0 to nZ (wherein n is 1,2 and 3.) every time when the times satisfy nZ, and recording the average as Tτ. This value is used as the theoretical Ts value in the next cycle nZ to (n +1) Z to participate in the operation.
If the actual deviation is too large, the data is discarded and an error warning is reported, such as: deviations from the theoretical Ts value of more than 30% are possible due to sudden problems with the tank seal.
The automatic adjustment method for the residual disinfection time in the working process of the disinfection cabinet can automatically complete the automatic calculation of the residual disinfection time in the working process of the disinfection cabinet, automatically adjust according to the real-time working condition, fully utilize the effective disinfection time in the dissipation process of ozone, reduce the working time as far as possible under the condition of meeting the effect and save more energy.
Claims (9)
1. A method for automatically adjusting the residual disinfection time in the work of a disinfection cabinet is characterized in that: the method comprises the following steps:
s1, starting the disinfection cabinet to disinfect;
s2, the residual working time T of the disinfection cabinet after the disinfection work is finished is Tset, wherein Tset is the preset working time of the disinfection cabinet;
s3, detecting ozone concentration data R in the disinfection cabinet in real time, and fitting a change relation curve f (R) of the ozone concentration in the disinfection cabinet and a time point according to the obtained ozone concentration data in real time;
s4, comparing R with R1, wherein R1 is the effective sterilization concentration of ozone;
if R < R1, go to S5;
if R is more than or equal to R1, S6 is carried out;
s5, calculating a corresponding time point T1 when ozone concentration data R in the disinfection cabinet reach R1 according to f (R), and calculating the residual working time T (T1-T + Tp) of the disinfection cabinet to finish disinfection work according to the current time point T, wherein Tp is the effective disinfection time of the disinfection cabinet;
s6, recording the corresponding actual time point T11 when the ozone concentration data R in the disinfection cabinet reach R1, and calculating the residual working time T of the disinfection cabinet from the completion of the disinfection work according to the current time point T, wherein the residual working time T is Tp- (T-T11) and is T11-T + Tp.
2. The method for automatically adjusting the sterilization time remaining in operation of a sterilization cabinet according to claim 1, wherein: comparing R with R2, wherein R2 > R1, R2 is a set ozone concentration threshold, and when the ozone concentration in the disinfection cabinet reaches R2 and the operation of the disinfection component is stopped, the ozone concentration can be maintained above the effective sterilization concentration R1 for a period of time Ts, wherein Ts is the natural escape time of the ozone concentration from R2 to R1;
if R is more than or equal to R2, S7 is carried out;
s7, recording the corresponding actual time point T21 when detecting that the ozone concentration data R in the disinfection cabinet is larger than or equal to R2;
s7.1, comparing T21-T11 + Ts with Tp, and if T21-T11 + Ts is more than or equal to Tp, performing S7.2; if T21-T11 + Ts < Tp, S7.3 is carried out;
s7.2, controlling to close the disinfection part, and finishing the disinfection operation of the disinfection cabinet after maintaining Tp- (T21-T11);
s7.3, controlling the disinfection component in the disinfection cabinet to work intermittently, so that the concentration of ozone in the disinfection cabinet is maintained near R2, the intermittent work duration of the disinfection component is Tp- (T21-T11 + Ts), and after the intermittent work of the disinfection component is finished, the disinfection work of the disinfection cabinet is maintained at Ts and then is finished.
3. A method for automatically adjusting the sterilization time remaining in operation of a sterilization cabinet according to claim 2, wherein: and S7.3, detecting ozone concentration data R in the disinfection cabinet in real time when the disinfection part works intermittently, controlling to close the disinfection part when R is (1+ x) R2, and controlling to open the disinfection part when R is (1-x) R2, wherein x is more than 0 and less than 1.
4. A method for automatically adjusting the sterilization time remaining in operation of a sterilization cabinet according to claim 3, wherein: x is more than 0 and less than or equal to 0.5.
5. Method for the automatic adjustment of the sterilization time remaining in operation of a sterilization cabinet according to claim 4, characterized in that: x is 0.05.
6. Method for the automatic adjustment of the sterilisation time remaining in operation of a sterilisation cabinet according to any of the claims from 2 to 5, characterised in that it comprises: and calculating T once every unit time length M set at intervals, updating and displaying T on the disinfection cabinet, and counting down the residual working time of the disinfection cabinet from the T to finish the disinfection work.
7. Method for the automatic adjustment of the sterilization time remaining in operation of a sterilization cabinet according to claim 6, wherein: when calculating T, if R is more than or equal to R2, recording the corresponding actual time point T21;
and calculating the residual working time T of the disinfection cabinet from the distance to finish the disinfection work to be Tp- (T21-T11) Tp-T21 + T11 according to T21, updating on the disinfection cabinet to show that the residual working time of the disinfection cabinet from the distance to finish the disinfection work is Tp-T21 + T11, and counting down from Tp-T21 + T11.
8. Method for the automatic adjustment of the sterilisation time remaining in operation of a sterilisation cabinet according to any of the claims from 2 to 5, characterised in that it comprises: ts is adjusted as the tightness of the cabinet changes.
9. Method for the automatic adjustment of the sterilisation time remaining in operation of a sterilisation cabinet according to any of the claims from 1 to 5, characterised in that: f (R) is adjusted according to a life parameter a corresponding to the service life of the disinfection component, wherein a is a value for measuring the limit of the disinfection capacity, and the value of a is reduced along with the increase of the service time of the disinfection component.
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|---|---|---|---|---|
| JPH10314281A (en) * | 1997-05-14 | 1998-12-02 | Zexel Corp | Ozone sterlizer |
| WO2008069640A1 (en) * | 2006-11-08 | 2008-06-12 | Bradford Instruments Bv | Method for sterilizing objects with ozone |
| CN101342373A (en) * | 2007-07-13 | 2009-01-14 | 上海高创医疗科技有限公司 | Circular convection type ozone disinfection cabinet |
| CN202589999U (en) * | 2012-05-14 | 2012-12-12 | 宁波方太厨具有限公司 | Intelligent tableware disinfecting cabinet |
| CN109847081A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of disinfection cabinet course of work control method |
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2020
- 2020-05-19 CN CN202010421977.6A patent/CN111330055B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10314281A (en) * | 1997-05-14 | 1998-12-02 | Zexel Corp | Ozone sterlizer |
| WO2008069640A1 (en) * | 2006-11-08 | 2008-06-12 | Bradford Instruments Bv | Method for sterilizing objects with ozone |
| CN101342373A (en) * | 2007-07-13 | 2009-01-14 | 上海高创医疗科技有限公司 | Circular convection type ozone disinfection cabinet |
| CN202589999U (en) * | 2012-05-14 | 2012-12-12 | 宁波方太厨具有限公司 | Intelligent tableware disinfecting cabinet |
| CN109847081A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of disinfection cabinet course of work control method |
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| Publication number | Publication date |
|---|---|
| CN111330055A (en) | 2020-06-26 |
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