CN112669582B - Self-diagnosis detection and control method for false alarm of ice cream machine - Google Patents
Self-diagnosis detection and control method for false alarm of ice cream machine Download PDFInfo
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Abstract
The invention discloses a self-diagnosis detection and control method for false alarm of an ice cream machine, the ice cream machine comprises an alarm system, the ice cream machine is provided with false alarm conditions, the self-diagnosis detection and control method comprises the following steps that after a compressor of the ice cream machine is started to enter a refrigerating state, when the ice cream is refrigerated to a preset shutdown forming proportion, A) when the ice cream does not reach the preset shutdown forming proportion, the compressor is stopped for a set time T each time when the alarm condition set by the alarm system is reached and the false alarm condition is reached, the number N1 of the compressor is recorded to be compared with the preset number N of the compressor stored in the system, and when the number N1 of the compressor is equal to the preset number N of the shutdown and reaches the alarm condition again, an alarm signal is sent and the alarm state is maintained for a set time; b) And when the preset shutdown forming proportion is reached, resetting the shutdown times N1 of the compressor to 0. The invention can reduce the false alarm rate and ensure the normal selling of the ice cream machine.
Description
Technical Field
The invention relates to the technical field of ice cream machines, in particular to a self-diagnosis detection and control method for false alarm of an ice cream machine.
Background
In a conventional ice cream machine, ice cream slurry is usually added into a material basin before starting to work, and the material is selectively added according to the discharging condition in the working process or the material basin cover is opened to see whether the material basin is deficient or not and then the material is selectively added. If the shortage is not found in time, the problems of freezing cylinder, scraping cylinder and serious noise can occur when the machine runs under the refrigeration condition, the stirring system of the machine is seriously damaged, and the service life of the machine is shortened. In addition, if the shortage is not found in time, when the ice cream is required to be sold, the ice cream cannot be timely made, and the ice cream can be normally discharged after being fed for a period of time, so that the service efficiency of the product is greatly reduced, and meanwhile, the benefit is reduced. In order to improve the use efficiency and the operation convenience of the ice cream machine, the ice cream machine with various alarming and reminding functions gradually appears in the industry, so that the conditions of material shortage, freezing cylinder and the like of the ice cream machine can be found in time.
Common ways of alarming an ice cream machine are:
1. the induction device is additionally arranged in the material basin and is used for inducing the height of the liquid level in the material cylinder and judging whether the material is lacked. In the mode, an additional device is needed to be added, the maintenance and cleaning difficulty is increased, and when the slurry is thick, the sensing device is easy to malfunction or does not act.
2. The Chinese patent of application number 201210032552.1 proposes an ice cream machine shortage alarming detection method, which is characterized in that the rotation speed of a stirring mechanism of the ice cream machine or the temperature of an evaporating cylinder is collected, a system preservation value is set in a system according to the relation between the rotation speed and the temperature and the ice cream molding proportion in the evaporating cylinder of the ice cream machine, and the comparison is carried out through a data function to judge whether the ice cream machine is in shortage.
In practical application, the false alarm rate of the 2 nd alarm detection method is about 10%, and whether the evaporation cylinder is in shortage or not can be reflected better under the condition of normal feeding of ice cream, but under the following conditions:
a) Under the conditions of high discharging speed and untimely feeding, the material pot is filled, and the method can judge that the machine is in shortage, prompt and alarm and then stop.
b) If the ice cream material in the material basin is higher in consistency and poor in fluidity, after discharging, the slurry cannot flow into the evaporation cylinder from the material basin in time or the inflow is small, and the machine is judged to be in shortage, and the machine is prompted to alarm and then is stopped.
The above conditions are easy to generate false alarm, and the normal selling of the ice cream machine is affected.
Disclosure of Invention
The invention aims to provide a self-diagnosis detection and control method for false alarm of an ice cream machine, and aims to reduce false alarm of the ice cream machine, and can be applied to ice cream machine products of existing material shortage alarm, low-temperature alarm or freezing cylinder alarm systems.
The above object of the present invention is achieved by the following technical scheme:
the self-diagnosis detection and control method for false alarm of ice cream machine includes alarm system with false alarm condition,
after the compressor of the ice cream machine is started to enter a refrigerating state, in the process that the ice cream is refrigerated to a preset shutdown molding proportion,
a) When the preset shutdown forming proportion is not reached, stopping the compressor for a set time T each time when the alarm condition set by the alarm system is reached and the false alarm condition is reached, recording the comparison between the shutdown times N1 of the compressor and the preset shutdown times N stored by the system, and when the shutdown times N1 of the compressor are equal to the preset shutdown times N and the alarm condition is reached again, sending out an alarm signal and maintaining the alarm state for a set time;
b) And when the preset shutdown forming proportion is reached, resetting the shutdown times N1 of the compressor to 0.
The preset shutdown forming proportion refers to an optimal forming proportion of ice cream reaching a discharging condition, generally 99% or 100%, the forming proportion of the ice cream machine can be determined by monitoring the temperature of an evaporation cylinder of the ice cream machine, the temperature of return air, the working current or the rotating speed of a motor in a stirring mechanism and the like, and the obtaining of the forming proportion belongs to the prior art and is not repeated here.
The method improves the control method of the existing ice cream machine material shortage alarm, low temperature alarm or freezing cylinder alarm, and when the system reaches the alarm condition, if the system meets the false alarm condition, the invention starts to eliminate false alarm by the unique self-diagnosis mode, thereby ensuring the normal operation of the ice cream machine.
When the ice cream material is lacking in the evaporation cylinder, if the ice cream material in the material basin cannot flow into the evaporation cylinder in time, the temperature in the evaporation cylinder can be rapidly reduced to a certain degree under the refrigeration state of the ice cream machine, and the alarm condition is achieved, because in practical application, the ice cream material cannot be timely supplemented to the evaporation cylinder, and the following various possible conditions exist:
1. the material is lacking in the material basin; 2. the material is arranged in the material basin, but the material is not fed in time at a high discharging speed; 3. the material is arranged in the material basin, but the ice cream material has high viscosity, poor fluidity and slow feeding.
The conditions 2 and 3 can reach the alarm condition, belonging to false alarm. The alarm system of the present invention is additionally provided with the following false alarm conditions:
a) Before the preset shutdown molding proportion is not reached, starting timing from the working time of the compressor, wherein in a set time T1, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system;
b) Starting timing after discharging the ice cream machine, wherein in a set time T2, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system and lasts for a period of time T3, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system and lasts for a period of time T3;
c) The ice cream molding proportion is larger than a set molding proportion A, but the preset shutdown molding proportion is not reached, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system and lasts for a period of time T4, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system and lasts for a period of time T4.
When the system detects that the ice cream machine meets any false alarm condition, the compressor is stopped, but the stirring motor of the ice cream machine continues to work, the system self-diagnosis is started, if the material pot is filled with material, the material liquid can gradually flow into the evaporation cylinder, the ice cream machine returns to a normal working state, and the false alarm condition is eliminated.
In the false alarm condition a, the T1 is more than or equal to 0.5 and less than or equal to 5.
In the false alarm condition b, T2 is less than or equal to 1 second and less than or equal to 60 seconds, T3 is less than or equal to 1 second and less than or equal to 20 seconds.
In the false alarm condition c, A is more than or equal to 70% and less than or equal to 96%, and T4 is more than or equal to 2 seconds and less than or equal to 30 seconds.
In the step A, the set time T for stopping the compressor is prolonged along with the increase of the stop times N1 of the compressor, wherein T is more than or equal to 5 seconds and less than or equal to 600 seconds, and N is more than or equal to 1 and less than or equal to 10.
Compared with the prior art, the invention has the following remarkable effects:
1. according to the invention, by setting the false alarm condition, when the false alarm condition is reached, the compressor is set to be closed for a period of time according to the program to perform self-diagnosis, so that the false alarm is eliminated, and the normal selling of the ice cream machine is ensured. And under the condition that the material pot has material but can not flow into the evaporating cylinder in time, the freezing cylinder, the scraping cylinder and the noise of ice cream can be prevented by suspending the compressor for refrigeration.
2. The invention can greatly improve the alarm accuracy under the condition that the cost is not obviously increased by adjusting the software on the basis of the structure of the ice cream machine.
Detailed Description
The present invention will be described in detail with reference to a preferred embodiment.
Example 1
The ice cream machine comprises an alarm system, and the ice cream machine sets the following false alarm conditions:
a) Before the preset shutdown forming proportion is not reached, starting timing from the working time of the compressor, wherein in a set time T1=3, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system;
after the compressor of the ice cream machine is started to enter a refrigerating state, in the process that the ice cream is refrigerated to a preset shutdown molding proportion, the following self-diagnosis steps are designed:
a) When the preset shutdown forming proportion is not reached, stopping the compressor for a set time T=10 seconds when the alarm system sets an alarm condition and the false alarm condition is reached, recording the shutdown times N1 of the compressor and the preset shutdown times N=4 stored in the system, and when the shutdown times N1 of the compressor are equal to the preset shutdown times N and the alarm condition is reached again, sending an alarm signal and maintaining an alarm state for a set time;
b) And when the preset shutdown forming proportion is reached, resetting the shutdown times N1 of the compressor to 0.
Example two
The ice cream machine comprises an alarm system, and the ice cream machine sets the following false alarm conditions:
b) Starting timing after discharging the ice cream machine, wherein in a set time T2=30 seconds, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system and lasts for a period of time T3=10 seconds, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system and lasts for a period of time T3=10 seconds;
after the compressor of the ice cream machine is started to enter a refrigerating state, in the process that the ice cream is refrigerated to a preset shutdown molding proportion, the following self-diagnosis steps are designed:
a) When the preset shutdown forming proportion is not reached, stopping the compressor for a set time T=15 seconds each time when the alarm condition set by the alarm system is reached and the false alarm condition is reached, recording the shutdown times N1 of the compressor and the preset shutdown times N=3 stored by the system, and when the shutdown times N1 of the compressor are equal to the preset shutdown times N and the alarm condition is reached again, sending an alarm signal and maintaining the alarm state for a set time;
b) And when the preset shutdown forming proportion is reached, resetting the shutdown times N1 of the compressor to 0.
Example III
The ice cream machine comprises an alarm system, and the ice cream machine sets the following false alarm conditions:
c) The ice cream molding proportion is larger than a set molding proportion A=70%, but the preset shutdown molding proportion is not reached, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system for a period of time T4=15 seconds, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system for a period of time T4=15 seconds;
after the compressor of the ice cream machine is started to enter a refrigerating state, in the process that the ice cream is refrigerated to a preset shutdown molding proportion, the following self-diagnosis steps are designed:
a) When the preset shutdown forming proportion is not reached, stopping the compressor for a set time T=20 seconds each time the alarm condition set by the alarm system is reached and the false alarm condition is reached, recording the comparison of the shutdown times N1 of the compressor and the preset shutdown times N=2 stored by the system, and when the shutdown times N1 of the compressor are equal to the preset shutdown times N and the alarm condition is reached again, sending an alarm signal and maintaining the alarm state for a set time;
b) And when the preset shutdown forming proportion is reached, resetting the shutdown times N1 of the compressor to 0.
The values of the parameters in the first to third embodiments can be determined according to the characteristics of the ice cream machine, and the parameters can be set into an adjustable variable through the system. In the false alarm condition a, T1 is more than or equal to 0.5 and less than or equal to 5; in the false alarm condition b, T2 is less than or equal to 1 second and less than or equal to 60 seconds, T3 is less than or equal to 1 second and less than or equal to 20 seconds; in the false alarm condition c, A is more than or equal to 80% and less than or equal to 96%, and T4 is more than or equal to 2 seconds and less than or equal to 30 seconds.
The ice cream machine can set three false alarm conditions from the first embodiment to the third embodiment simultaneously, when the system detects that the ice cream machine meets any false alarm condition, the compressor is stopped, but the stirring motor of the ice cream machine continues to work, the system self-diagnosis is started, if materials exist in the material basin, the material liquid can gradually flow into the evaporation cylinder, the ice cream machine returns to a normal working state, and the false alarm condition is eliminated.
Further, in the self-diagnosis process of the system, the value range of the preset shutdown times N stored in the system is: when N is greater than or equal to 1 and less than or equal to 10, and when N is greater than or equal to 2, the set time T for stopping the compressor is prolonged along with the increase of the stopping times N1 of the compressor, for example, in the first embodiment, N=4, the first stopping time of the compressor is 10 seconds, the second stopping time can be 12 seconds, the third stopping time can be 14 seconds, the fourth stopping time can be 16 seconds, and after the fourth stopping time of the compressor, the ice cream machine reaches an alarm condition again, and an alarm signal is sent. Wherein, the value range of the parameter T of the compressor downtime is more than or equal to 5 seconds and less than or equal to 600 seconds.
The method of the invention can be used in combination with the existing alarm system, the working principle and specific process of the alarm condition can be referred to the Chinese patent No. 201210032552.1, namely an ice cream machine shortage alarm detection method, but the method is not limited to the alarm condition described in the patent, and the ice cream machine which performs shortage, low temperature or freezing cylinder alarm in other modes can also be used in combination with the invention.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (7)
1. The self-diagnosis detection and control method for false alarm of ice cream machine includes the alarm system, and features that the ice cream machine has false alarm condition, and the self-diagnosis detection and control method includes the following steps,
a) When the preset shutdown forming proportion is not reached, stopping the compressor for a set time T each time when the alarm condition set by the alarm system is reached and the false alarm condition is reached, recording the comparison between the shutdown times N1 of the compressor and the preset shutdown times N stored by the system, and when the shutdown times N1 of the compressor are equal to the preset shutdown times N and the alarm condition is reached again, sending out an alarm signal and maintaining the alarm state for a set time;
b) Resetting the number of times N1 of the compressor to 0 when the preset shutdown forming proportion is reached;
the false alarm condition includes any one of,
a) Before the preset shutdown molding proportion is not reached, starting timing from the working time of the compressor, wherein in a set time T1, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system;
b) Starting timing after discharging the ice cream machine, wherein in a set time T2, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system and lasts for a period of time T3, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system and lasts for a period of time T3;
c) The ice cream molding proportion is larger than a set molding proportion A, but the preset shutdown molding proportion is not reached, the measured temperature value of the evaporating cylinder is lower than the alarm temperature threshold set by the alarm system and lasts for a period of time T4, or the measured current value of the stirring motor is higher than the alarm current threshold set by the alarm system and lasts for a period of time T4.
2. The self-diagnosis detection and control method for false alarm of ice cream machine according to claim 1, characterized in that: in the false alarm condition a, the T1 is more than or equal to 0.5 and less than or equal to 5.
3. The self-diagnosis detection and control method for false alarm of ice cream machine according to claim 1, characterized in that: in the false alarm condition b, T2 is less than or equal to 1 second and less than or equal to 60 seconds, T3 is less than or equal to 1 second and less than or equal to 20 seconds.
4. The self-diagnosis detection and control method for false alarm of ice cream machine according to claim 1, characterized in that: in the false alarm condition c, A is more than or equal to 70% and less than or equal to 96%, and T4 is more than or equal to 2 seconds and less than or equal to 30 seconds.
5. The self-diagnosis detection and control method for false alarm of ice cream machine according to any one of claims 1 to 4, characterized in that: in the step a, the set time T for stopping the compressor is prolonged as the number of times N1 of stopping the compressor is increased.
6. The self-diagnosis detection and control method for false alarm of ice cream machine according to claim 5, characterized in that: t is more than or equal to 5 seconds and less than or equal to 600 seconds.
7. The self-diagnosis detection and control method for false alarm of ice cream machine according to claim 6, characterized in that: n is more than or equal to 1 and less than or equal to 10.
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| CN101530151A (en) * | 2009-04-07 | 2009-09-16 | 王新兵 | Method and device for detecting material lack of ice cream machine |
| CN102578354B (en) * | 2012-02-14 | 2013-09-04 | 王新兵 | Method for detecting starved feeding alarming of ice cream machine |
| CN103297094B (en) * | 2012-03-01 | 2016-08-03 | 宇龙计算机通信科技(深圳)有限公司 | The monitoring method and system of monitoring is realized by the short distance wireless communication technology |
| WO2014007927A1 (en) * | 2012-05-29 | 2014-01-09 | The Regents Of The University Of California | Sonification system for auditory display of physiological parameters |
| CN103927847B (en) * | 2014-04-18 | 2016-08-24 | 深圳市丰泰瑞达实业有限公司 | A kind of intelligence endowment nursing system |
| CN108107930B (en) * | 2016-11-24 | 2021-01-26 | 松下家电研究开发（杭州）有限公司 | Control method of electric appliance for degerming by using metal ions and electric appliance |
| US10237393B1 (en) * | 2017-09-12 | 2019-03-19 | Intel Corporation | Safety systems and methods that use portable electronic devices to monitor the personal safety of a user |
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