Intelligent ginger cellar monitoring system

Abstract

The invention is applicable to the field of environment monitoring systems, and provides an intelligent ginger cellar monitoring system, comprising: an environment monitoring unit comprising a temperature sensor and a gas concentration sensor; the control unit is internally provided with a temperature sensing judgment range around a set value; the control unit receives concentration values monitored by the gas concentration sensor and records the concentration values as a concentration group according to the recorded time; if the concentration group has a certain increasing trend, the control unit increases the temperature sensing judgment range; the control unit receives a temperature value monitored by the temperature sensor and judges whether the temperature value falls into a temperature sensing judgment range or not, and if not, a control signal is transmitted to the alarm signal transmitting unit, so that the environment change in the storage cellar can be sensed, whether human intervention exists or not is judged, the sensing range of the monitoring system is adjusted, and the monitoring accuracy is improved. And the sensitivity is reduced.

Description

Technical Field

[0001] The invention relates to the field of environmental monitoring systems, and in particular to an intelligent ginger cellar monitoring system. Background Art

[0002] In the field of agricultural product storage, storage cellars, especially ginger cellars (ginger is more sensitive to storage environment), are key facilities for maintaining the freshness of ginger and extending the storage period. The stability of the internal environment has a direct impact on product quality. Therefore, it is particularly important to conduct regular and accurate measurements of the environment in the storage cellar.

[0003] The environmental parameters monitored in the storage cellar include temperature (agricultural products such as ginger are sensitive to temperature changes, and too high or too low temperatures may lead to quality degradation or even rot), humidity (humidity not only affects the moisture retention of the product, but also the growth of microorganisms), and air conditions (such as oxygen, CO2, etc.). Among them, the existing environmental monitoring system is relatively simple to judge. Under normal circumstances (such as temperature), a temperature sensing judgment range is set inside the system, and the value of the temperature sensing judgment range is always fixed. When working, it is judged whether the temperature value in the storage cellar monitored by the sensor falls within the temperature sensing judgment range.

[0004] This fixed temperature sensing judgment range is relatively sensitive in perception and judgment, and the sensitive system judgment will lead to reduced practicality. For example, if the storage cellar is opened manually, causing the environment inside the cellar to change, the monitoring system will immediately trigger an alarm.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0006] In view of the above-mentioned defects, the object of the present invention is to provide an intelligent ginger cellar monitoring system, which can sense environmental changes in the storage cellar, determine whether it is human intervention, and then adjust the perception range of the monitoring system to reduce its sensitivity.

[0007] In order to achieve the above-mentioned purpose, the present invention provides an intelligent ginger cellar monitoring system, comprising: an environmental monitoring unit, which includes a temperature sensor and a gas concentration sensor; wherein the temperature sensor is used to monitor the temperature in the storage cellar; the gas concentration sensor is used to monitor the concentration of a certain gas in the air in the storage cellar; a control unit, which has a temperature sensing judgment range around a set value; the control unit receives the concentration value monitored by the gas concentration sensor and records it as a concentration group according to the recorded time; if the concentration group has a certain increasing trend, the control unit increases the temperature sensing judgment range; if the concentration group has an unchanged trend, the temperature sensing judgment range remains unchanged; the control unit receives the temperature value monitored by the temperature sensor and determines whether it falls into the temperature sensing judgment range, and if not, transmits a control signal to the alarm signal transmitting unit; the alarm signal transmitting unit receives the control signal sent by the control unit and transmits the alarm signal.

[0008] According to the intelligent ginger cellar monitoring system of the present invention, the temperature sensing judgment range is composed of a temperature rising area greater than a set value and a temperature falling area less than or equal to the set value; the control unit receives external temperature information, and if the external temperature is higher than the temperature in the storage cellar, the control unit adjusts the temperature rising area; if the external temperature is lower than the temperature in the storage cellar, the control unit adjusts the temperature falling area.

[0009] According to the intelligent ginger cellar monitoring system of the present invention, the concentration groups recorded by the control unit are S1, S2, S3, S4...Si; and their growth rate is calculated by the following formula; α=(Si-S1) / S1; if α>1, the concentration group shows an increasing trend; α<0, the concentration group shows a decreasing trend; 0≤α≤1, then the concentration group shows an unchanged trend.

[0010] According to the intelligent ginger cellar monitoring system of the present invention, if the concentration group has a decreasing trend, the control unit narrows the temperature sensing judgment range to the initial temperature sensing judgment range.

[0011] According to the intelligent ginger cellar monitoring system of the present invention, a preset value SΔ of gas concentration growth is set in the control unit; if the growth rate obtained within a certain time period is greater than or equal to the preset value SΔ of gas concentration growth, that is, (Si 前 -Si 后 ) / Si 前 ≥SΔ, the control unit increases the temperature sensing judgment range; if the growth rate obtained within a certain period of time is less than the preset value SΔ of the gas concentration growth, that is, (Si 前 -Si 后 ) / Si 前 <SΔ, the control unit does not adjust the temperature sensing judgment range.

[0012] According to the intelligent ginger cellar monitoring system of the present invention, the initial temperature sensing judgment range is (temp1-tempΓ, temp1+tempΓ), temp1 is the set value; tempΓ is the temperature adjustment range value; tempΓ is adjusted according to the following formula: tempΓ=(Si 前 -Si 后 ) / Si 前 ×β; where β is the conversion coefficient.

[0013] The present invention provides an intelligent ginger cellar monitoring system, comprising: an environmental monitoring unit, which includes a temperature sensor and a gas concentration sensor; wherein the temperature sensor is used to monitor the temperature in the storage cellar; the gas concentration sensor is used to monitor the concentration of a certain gas in the air in the storage cellar; a control unit, which has a temperature sensing judgment range around a set value; the control unit receives the concentration value monitored by the gas concentration sensor and records it as a concentration group according to the recorded time; if the concentration group has a certain increasing trend, the control unit increases the temperature sensing judgment range; if the concentration group has an unchanged trend, the temperature sensing judgment range remains unchanged; the control unit receives the temperature value monitored by the temperature sensor and determines whether it falls into the temperature sensing judgment range, and if not, transmits a control signal to an alarm signal transmitting unit; the alarm signal transmitting unit receives the control signal sent by the control unit and transmits an alarm signal. The present invention can sense environmental changes in the storage cellar, determine whether it is human intervention, and then adjust the sensing range of the monitoring system to reduce its sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the unit composition of the present invention. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] See also Figure 1 The present invention provides an intelligent ginger cellar monitoring system, which includes: The environmental monitoring unit includes a temperature sensor and a gas concentration sensor; the temperature sensor is used to monitor the temperature in the storage cellar, denoted by temp; the gas concentration sensor is used to monitor the concentration of a certain gas in the air of the storage cellar. For example, in this example, the gas concentration sensor adopts an oxygen concentration sensor, and of course, a concentration sensor for monitoring other gases such as CO2 or nitrogen can also be adopted (but the following judgment method will be changed); the temperature sensor and the gas concentration sensor both monitor the changes of the environmental values ​​in the storage cellar in real time, and upload them to the control unit in real time.

[0017] The control unit (a computer arranged outside the storage cellar, the temperature sensor and the gas concentration sensor transmit the environmental values ​​to the computer through the signal transmission module) has a temperature sensing judgment range around the set value inside, and the initial temperature sensing judgment range is (temp1-tempΓ, temp1+tempΓ), wherein temp1 is the set value; tempΓ is the temperature adjustment range value, and temp1 and tempΓ in the initial state can be set manually; the control unit receives the concentration value monitored by the gas concentration sensor and records it as a concentration group according to the recorded time (the recorded concentration groups are stored in the storage unit of the computer for retrieval and viewing).

[0018] As the recording time flows, if the concentration group has a certain increasing trend, it means that the environment in the storage cellar has been artificially broken, and the control unit increases the temperature sensing judgment range. By increasing the temperature sensing judgment range, the sensitivity of the system monitoring results triggering the alarm can be effectively reduced; however, not all concentration groups with an increasing trend are used as conditions for adjusting the temperature sensing judgment range, that is, the temperature sensing judgment range is adjusted only when the environment in the storage cellar is artificially broken. Therefore, it is necessary to first judge the above-mentioned environmental conditions of artificially breaking the storage cellar.

[0019] The above situation is judged in the following way; First, the concentration groups recorded by the control unit are S1, S2, S3, S4...Si; and their growth is calculated by the following formula; α = (Si-S1) / S1; In this embodiment, if α>1, the concentration group shows an increasing trend; if α<0, the concentration group shows a decreasing trend; and if 0≤α≤1, the concentration group shows a constant trend.

[0020] Secondly, a preset value SΔ of gas concentration growth is set in the control unit; If the growth rate obtained within a certain period of time is greater than or equal to the preset value SΔ of the gas concentration growth, that is, (Si 前 -Si 后 ) / Si 前 ≥SΔ(Si前 is the concentration value corresponding to the previous time point; Si 后 is the concentration value corresponding to the next time point), the control unit increases the temperature sensing judgment range; this state is the artificial disruption of the environment in the storage cellar. This is because workers need to use a blower to pump air into the storage cellar before going down to the storage cellar to ensure a good working environment inside. During the air injection process, the gas concentration growth rate within this time period will increase significantly. This situation belongs to the safety situation of the storage cellar environment change, so the sensitivity of environmental monitoring can be reduced.

[0021] If the growth rate obtained within a certain period of time is less than the preset value SΔ of the gas concentration growth, that is, (Si 前 -Si 后 ) / Si 前 <SΔ, the control unit does not adjust the temperature sensing judgment range. In this state, although the environment in the storage cellar is broken (the concentration group tends to increase), it is not artificial, such as the cover is not sealed tightly, or there are other air vents in the storage cellar. This situation is a dangerous situation of storage cellar environment change, so the sensitivity of environmental monitoring remains in the original state to provide timely alarm.

[0022] It should be further explained that the temperature sensing judgment range is composed of a temperature rising area greater than the set value temp1 and a temperature falling area less than or equal to the set value; for example, temp1-tempΓ is the temperature falling area, and temp1+tempΓ (including temp1) is the temperature rising area.

[0023] Among them, the control unit receives external temperature information data. If the external temperature is higher than the temperature inside the storage cellar (for example, in summer), the external air enters the storage cellar, and the temperature inside the storage cellar will rise. In order to reduce the sensitivity of the monitoring system, the control unit adjusts the temperature rising area (increases the range); if the external temperature is lower than the temperature inside the storage cellar (for example, in winter), the external air enters the storage cellar, and the temperature inside the storage cellar will drop. In order to reduce the sensitivity of the monitoring system, the control unit adjusts the temperature dropping area (increases the range).

[0024] If the concentration group has a constant trend, in this state, the storage cellar has a stable storage environment, and the environment in the storage cellar is not broken, then the control unit will naturally not adjust the temperature sensing judgment range.

[0025] If the concentration group has a decreasing trend (this means that the work is completed, the oxygen is consumed after the cap is sealed), the gas concentration in the storage cellar decreases, and the control unit narrows the temperature sensing judgment range to the initial temperature sensing judgment range.

[0026] tempΓ is adjusted according to the following formula: tempΓ=(Si 前 -Si后 ) / Si 前 ×β; where β is the conversion coefficient (this coefficient is used for numerical conversion on the one hand and unit conversion on the other hand). The numerical adjustment of tempΓ is associated with the growth of gas concentration, so that the greater the growth of gas concentration, the greater the numerical adjustment of tempΓ, and vice versa.

[0027] The control unit receives the temperature value monitored by the temperature sensor and determines whether it falls within the temperature sensing determination range. If not, a control signal is transmitted to the alarm signal transmitting unit. The alarm signal transmitting unit (such as a warning horn) receives the control signal sent by the control unit to transmit the alarm signal and realize the alarm work.

[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An intelligent ginger cellar monitoring system, characterized in that: include: The environmental monitoring unit includes a temperature sensor and a gas concentration sensor; wherein the temperature sensor is used to monitor the temperature in the storage cellar; the gas concentration sensor is used to monitor the concentration of a certain gas in the air in the storage cellar; A control unit having a temperature sensing judgment range around a set value inside; the control unit receives the concentration value monitored by the gas concentration sensor and records it as a concentration group according to the recorded time; if the concentration group has a trend greater than a predetermined growth rate, the control unit increases the temperature sensing judgment range; if the concentration group has a constant trend, the temperature sensing judgment range remains unchanged; The control unit receives the temperature value monitored by the temperature sensor and determines whether it falls within the temperature sensing determination range. If not, a control signal is transmitted to the alarm signal transmitting unit. The alarm signal transmitting unit receives the control signal sent by the control unit and transmits the alarm signal.

2. The intelligent ginger cellar monitoring system according to claim 1, characterized in that: The temperature sensing judgment range is composed of a temperature rising area greater than a set value and a temperature falling area less than or equal to the set value; The control unit receives the outside temperature information. If the outside temperature is higher than the temperature inside the storage cellar, the control unit adjusts the temperature rising area; if the outside temperature is lower than the temperature inside the storage cellar, the control unit adjusts the temperature falling area.

3. The intelligent ginger cellar monitoring system according to claim 1, characterized in that: The concentration groups recorded by the control unit are S1, S2, S3, S4...Si; and their growth is calculated by the following formula; α = (Si-S1) / S1; If α>1, the concentration group shows an increasing trend; α<0, the concentration group shows a decreasing trend; 0≤α≤1, then the concentration group shows an unchanged trend.

4. The intelligent ginger cellar monitoring system according to claim 1, characterized in that: If the concentration group has a decreasing trend, the control unit narrows the temperature sensing determination range to an initial temperature sensing determination range.

5. The intelligent ginger cellar monitoring system according to claim 1 or 3, characterized in that: The control unit is provided with a preset value SΔ of gas concentration growth; If the growth rate obtained within a certain period of time is greater than or equal to the preset value SΔ of the gas concentration growth, that is, (Si 前 -Si 后 ) / Si 前 ≥SΔ, the control unit increases the temperature sensing judgment range; If the growth rate obtained within a certain period of time is less than the preset value SΔ of the gas concentration growth, that is, (Si 前 -Si 后 ) / Si 前 <SΔ, the control unit does not adjust the temperature sensing judgment range.

6. The intelligent ginger cellar monitoring system according to claim 1 or 2, characterized in that: The initial temperature sensing judgment range is (temp1-tempΓ, temp1+tempΓ), where temp1 is the set value; tempΓ is the temperature adjustment range value; tempΓ is adjusted according to the following formula: tempΓ=(Si 前 -Si 后 ) / Si 前 ×β; where β is the conversion coefficient.

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