A grain depot safety storage monitoring system and method

Abstract

The present invention relates to a grain depot safe storage monitoring system and method, the system includes a cloud server, a controller, a temperature and humidity monitoring unit, a smoke monitoring unit and a communication module, the temperature and humidity monitoring unit and the smoke monitoring unit are both arranged in the grain depot, and are both electrically connected to the controller, the controller communicates with the cloud server through the communication module, the temperature and humidity monitoring unit includes a plurality of temperature and humidity sensors, a ventilation mechanism and a warehouse-turning mechanism, a plurality of temperature and humidity sensors are dispersedly arranged inside the grain depot, the ventilation mechanism is used to ventilate and dry the grain depot, the warehouse-turning mechanism is used to turn the grain in the grain depot, and the signal output end of the temperature and humidity sensor, the control end of the ventilation mechanism and the control end of the warehouse-turning mechanism are all electrically connected to the controller. The present invention sets a plurality of sensors to detect whether the grain depot is safe from parameters such as the temperature, humidity and smoke concentration of the storage environment, which can effectively reduce the loss caused by deterioration and fire in the grain storage link, and ensure grain safety.

Description

Technical Field

[0001] The present invention relates to the technical field of warehouse management, and in particular to a grain depot safety storage monitoring system and method. Background Art

[0002] When grain is stored in a grain warehouse, it is inevitable that grain will be lost due to spoilage. For example, if grain becomes moldy and spoils due to environmental influences, or if a fire occurs in a grain warehouse, a large amount of grain will be lost. In terms of grain storage, by using technical means to reduce the loss rate of grain, countries around the world can reduce a large amount of economic losses every year. Therefore, ensuring the safety of grain storage is very important for each country, and research on food safety storage technology has become a top priority in today's society.

[0003] The temperature and humidity of grain stored in the grain depot, as well as the prevention of grain depot fires, are the key points of safe grain storage. Excessive humidity or temperature in the grain depot will cause the grain to deteriorate, and excessive humidity will cause the grain to heat up, mold, and be attacked by pests during storage. In addition to the influence of temperature and humidity, we must also pay attention to the fire hazards in the grain depot. If a fire occurs, it will cause serious losses. For example, a fire broke out in a grain depot in Hangzhou in 2011. The fire area of ​​the grain depot reached 30 square meters, causing great losses. Therefore, we must strictly prevent grain depot fires to avoid losses.

[0004] To reduce the loss of grain due to spoilage, it is necessary to monitor the temperature and humidity of all grains in the grain warehouse in real time. If the environment is not suitable, the system will notify the management personnel, and then the management personnel will take measures to ensure that the storage environment of the grain is always within a reasonable temperature and humidity range to prevent it from spoiling. Only by ensuring that the temperature and humidity inside the grain and the temperature and humidity in the air are always kept within the appropriate range can the purpose of long-term safe grain storage be achieved. In the safety management of grain storage, it is necessary not only to pay attention to the temperature and humidity of the storage environment, but also to monitor the fire situation in the grain warehouse. Summary of the invention

[0005] In view of this, the present invention provides a grain storage safety monitoring system and method, in which multiple sensors are arranged to detect whether the grain warehouse is safe based on parameters such as temperature, humidity and smoke concentration of the storage environment. If the sensor detects abnormal data, the system will issue an alarm in advance and then take effective intervention measures, which can effectively reduce the loss caused by deterioration and fire in the grain storage link and ensure food safety.

[0006] In order to achieve the above object, the present invention is achieved through the following technical solutions:

[0007] The present invention provides a grain storage safety monitoring system, comprising a cloud server, a controller, a temperature and humidity monitoring unit, a smoke monitoring unit and a communication module. The temperature and humidity monitoring unit and the smoke monitoring unit are both arranged in a grain bin and are both electrically connected to the controller. The controller communicates with the cloud server through the communication module. The temperature and humidity monitoring unit comprises a plurality of temperature and humidity sensors, a ventilation mechanism and a bin-turning mechanism. The plurality of temperature and humidity sensors are dispersedly arranged inside the grain bin. The ventilation mechanism is used for ventilating and drying the grain bin. The bin-turning mechanism is used for dumping grain in the grain bin. The signal output end of the temperature and humidity sensor, the control end of the ventilation mechanism and the control end of the bin-turning mechanism are all electrically connected to the controller.

[0008] In the above-mentioned grain warehouse safety storage monitoring system, as a preferred solution, the smoke monitoring unit includes a smoke detection module and an alarm module, the smoke detection module is arranged above the grain warehouse, and the alarm module and the smoke detection module are both electrically connected to the controller.

[0009] In the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the grain depot safety storage monitoring system also includes a display module and a button module, the display module is used to display the temperature, humidity and smoke concentration data of the granary, and the button module is used to set or adjust the threshold values ​​of temperature, humidity and smoke concentration, and the display module and the button module are both electrically connected to the controller.

[0010] In the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the multiple temperature and humidity sensors are respectively multiple upper temperature and humidity sensors, multiple middle temperature and humidity sensors and multiple lower temperature and humidity sensors. The multiple upper temperature and humidity sensors are dispersedly arranged in the upper part of the granary, the multiple middle temperature and humidity sensors are dispersedly arranged in the middle part of the granary, and the multiple lower temperature and humidity sensors are dispersedly arranged in the lower part of the granary.

[0011] In the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the ventilation mechanism includes a dryer, an air compressor and a plurality of drying pipes, the plurality of drying pipes are all arched and arranged side by side at the lower part of the granary, one end of the drying pipes are connected to the air compressor, the air inlet end of the air compressor is connected to the dryer, the drying pipes are fixedly connected to the bottom of the granary by a plurality of pillars, and a plurality of exhaust columns are arranged on the lower side of the drying pipes.

[0012] In the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the bin tipping mechanism includes a bin tipping motor, a discharge box, a conveying pipe and a hoist. A bin tipping opening is opened at the bottom of the grain depot, and the discharge box is arranged below the bin tipping opening. The bin tipping motor and the conveying pipe are respectively arranged on both sides of the discharge box. The other end of the conveying pipe is connected to the hoist, and the output end of the hoist is connected to the upper part of the grain depot.

[0013] The present invention also provides a grain depot safe storage monitoring method, comprising:

[0014] Multiple temperature and humidity sensors are installed in the granary to monitor the temperature and humidity in various places inside the granary in real time;

[0015] Obtain the temperature data curve and humidity data curve of various places inside the granary over time;

[0016] Set a first temperature threshold, a second temperature threshold, a first humidity threshold, a second humidity threshold, and a first quantity threshold and a second quantity threshold at various locations inside the granary;

[0017] Counting the number of sensors in the granary that reach a first temperature threshold or a first humidity threshold, and when the number reaches the first number threshold, ventilating and drying the air in the granary;

[0018] Counting the number of sensors in the granary that have reached a second temperature threshold or a second humidity threshold, and when the number reaches the second number threshold, ventilating and drying the air in the granary;

[0019] After a certain period of time, stop ventilating and drying the granary air;

[0020] Among them, the first temperature threshold is smaller than the second temperature threshold, the first humidity threshold is smaller than the second humidity threshold, and the first quantity threshold is larger than the second quantity threshold.

[0021] In the above-mentioned grain depot safe storage monitoring method, as a preferred solution, it also includes:

[0022] Taking one day as a cycle, the median start time of ventilation and drying of the granary is calculated as the initial start time, and the median stop time of the last ventilation and drying is calculated as the initial stop time;

[0023] Gradually correct the initial start time of ventilation and drying of the grain silo to obtain the final start time;

[0024] The initial end time of ventilation and drying of the granary is gradually corrected to obtain the final end time.

[0025] In the above-mentioned grain storage safety monitoring method, as a preferred solution, the gradually correcting the initial start time of ventilating and drying the grain bin includes:

[0026] Start ventilating and drying the granary 2 hours in advance;

[0027] The granary ventilation and drying is started 10 minutes later each day than the previous day, until the sensor that reaches the first temperature threshold or the first humidity threshold begins to appear during the ventilation and drying process of the granary, and the start time of the previous day is taken as the final start time;

[0028] The gradually corrected initial end time of ventilation and drying of the granary includes:

[0029] The ventilation and drying of the granary is stopped 10 minutes earlier each day than the previous day, until the sensors that reach the first temperature threshold or the first humidity threshold begin to appear after the ventilation and drying of the granary are stopped. The end time of the previous day is taken as the final end time.

[0030] In the above-mentioned grain depot safe storage monitoring method, as a preferred solution, it also includes:

[0031] Counting the number of times the first temperature threshold and the first humidity threshold of each sensor are reached;

[0032] When any sensor reaches the first temperature threshold or the first humidity threshold for a certain number of times, the grain bin emptying mechanism is activated to empty the grain bin;

[0033] After the warehouse is turned over, the number of times counted by each sensor is reset to zero, and the number of times the first temperature threshold and the first humidity threshold of each sensor is counted again.

[0034] The present invention provides a grain depot safety storage monitoring system, which has the following beneficial effects:

[0035] 1. The present invention provides a grain depot safety storage monitoring system, which adopts an STM32 single-chip microcomputer as a main controller, selects DHT11 as a temperature and humidity parameter acquisition module, and an MQ-2 smoke sensor as a smoke detection parameter acquisition module. The liquid crystal display screen displays the detection data, and the communication module adopts a wireless transmission module to send the data to a mobile phone. First, the sensor sends the detected data to the STM32F103C8T6 single-chip microcomputer, and then sends the signal to the LCD1602 liquid crystal display module for display. At the same time, the system controls the ESP8266 wireless module to transmit the data to the mobile phone;

[0036] 2. The present invention provides a grain storage safety monitoring system, which is provided with a key module, and the thresholds of temperature, humidity and smoke concentration can be adjusted by key switches. If the detected data exceeds the preset threshold, the single-chip microcomputer will send a signal to the alarm module, and the alarm module will start to alarm, which can remind people to take corresponding measures, thereby solving the problems of grain in the grain depot becoming moldy or deteriorating or catching fire due to the influence of temperature and humidity. It has the advantages of miniaturization and high reliability, and can be promoted and used in various small and medium-sized grain depots to ensure the safety of grain. This design is of great significance to the safe storage of grain in my country.

[0037] The present invention also provides a grain depot safe storage monitoring method, and its beneficial effects are similar to those of the grain depot safe storage monitoring system, which will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a functional block diagram of a grain depot safety storage monitoring system provided by an embodiment of the present invention;

[0039] Figure 2 A principle block diagram of a grain depot safety storage monitoring system dumping mechanism provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the overall structure of a granary of a granary safety storage monitoring system provided by an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of the overall structure of a grain depot safety storage monitoring system from another direction provided by an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of the process structure of a grain depot safety storage monitoring system provided by an embodiment of the present invention;

[0043] Figure 6 A humidity curve diagram of a grain depot in one day in the grain depot safety storage monitoring method provided by an embodiment of the present invention;

[0044] Figure 7 This is a temperature curve diagram of a grain depot within one day in the grain depot safety storage monitoring method provided in an embodiment of the present invention.

[0045] Description of reference numerals:

[0046] 1- granary, 2- bin opening, 3- air inlet pipe, 4- drying pipe, 5- exhaust column, 6- support column, 7- upper layer temperature and humidity sensor, 8- middle layer temperature and humidity sensor, 9- lower layer temperature and humidity sensor, 10- bin discharge pipe, 11- conveying pipe, 12- elevator, 13- unloading box, 14- bin motor, 15- air compressor, 16- dryer, 17- smoke sensor. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The exemplary embodiments of the present invention are described below in conjunction with specific circumstances:

[0049] Please refer to Figure 1 , Figure 1 Schematic diagram of a grain depot safety storage monitoring system provided in an embodiment of the present invention; According to an embodiment of the present invention, the present invention provides a grain depot safety storage monitoring system, including a cloud server, a controller, a temperature and humidity monitoring unit, a smoke monitoring unit and a communication module. The temperature and humidity monitoring unit and the smoke monitoring unit are both arranged in a granary 1 and are both electrically connected to the controller. The controller communicates with the cloud server through the communication module. The temperature and humidity monitoring unit includes a plurality of temperature and humidity sensors, a ventilation mechanism and a bin-turning mechanism. The plurality of temperature and humidity sensors are dispersedly arranged inside the granary 1. The ventilation mechanism is used for ventilating and drying the granary 1. The bin-turning mechanism is used for dumping the grain in the granary 1. The signal output end of the temperature and humidity sensor, the control end of the ventilation mechanism and the control end of the bin-turning mechanism are all electrically connected to the controller.

[0050] In the above-mentioned grain storage safety monitoring system, as a preferred solution, the smoke monitoring unit includes a smoke detection module and an alarm module. The smoke detection module is arranged above the grain silo 1, and the alarm module and the smoke detection module are both electrically connected to the controller.

[0051] In the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the grain depot safety storage monitoring system also includes a display module and a button module. The display module is used to display the temperature, humidity and smoke concentration data of the granary 1, and the button module is used to set or adjust the threshold values ​​of the temperature, humidity and smoke concentration. The display module and the button module are both electrically connected to the controller.

[0052] Please refer to Figure 2 and Figure 3 , Figure 2 This is a principle block diagram of the grain depot safety storage monitoring system provided by the embodiment of the present invention. Figure 3The present invention is a schematic diagram of the overall structure of a granary 1 of a granary safety storage monitoring system provided in an embodiment of the present invention; in the above-mentioned granary safety storage monitoring system, as a preferred solution, the multiple temperature and humidity sensors are respectively multiple upper temperature and humidity sensors 7, multiple middle temperature and humidity sensors 8 and multiple lower temperature and humidity sensors 9, the multiple upper temperature and humidity sensors 7 are dispersedly arranged in the upper part of the granary 1, the multiple middle temperature and humidity sensors 8 are dispersedly arranged in the middle part of the granary 1, and the multiple lower temperature and humidity sensors 9 are dispersedly arranged in the lower part of the granary 1.

[0053] Please refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the overall structure of the granary 1 in another direction of the granary safety storage monitoring system provided by the embodiment of the present invention. Figure 5 A schematic diagram of the process structure of the grain depot safety storage monitoring system provided by an embodiment of the present invention; in the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the ventilation mechanism includes a dryer 16, an air compressor 15 and a plurality of drying pipes 4, the plurality of drying pipes 4 are all arched, arranged side by side at the lower part of the granary 1, one end of the drying pipes 4 are connected to the air compressor 15, the air inlet end of the air compressor 15 is connected to the dryer 16, the drying pipe 4 is fixedly connected to the bottom of the granary 1 through a plurality of pillars 6, and a plurality of exhaust columns 5 are arranged at the lower side of the drying pipe 4. The dryer 16 is used to dry the air input into the air compressor 15, the end of the air compressor 15 is connected to a plurality of drying pipes 4 through an air inlet pipe 3, the drying pipe 4 is arched, and can effectively disperse the pressure on the top of the drying pipe 4 to both sides, and the exhaust column 5 is arranged below the drying pipe 4, which can prevent the grain in the granary 1 from flowing back into the drying pipe 4.

[0054] like Figure 4 and Figure 5 As shown, in the above-mentioned grain depot safety storage monitoring system, as a preferred solution, the dumping mechanism includes a dumping motor 14, a discharge box 13, a conveying pipe 11 and an elevator 12. A dumping port 2 is opened at the bottom of the granary 1, and the discharge box 13 is arranged below the dumping port 2. The dumping motor 14 and the conveying pipe 11 are respectively arranged on both sides of the discharge box 13. The other end of the conveying pipe 11 is connected to the elevator 12, and the output end of the elevator 12 is connected to the upper part of the granary 1. The output end of the elevator 12 is connected to the dumping discharge pipe 10, and the end of the dumping discharge pipe 10 is located at the upper part of the granary 1.

[0055] In the above-mentioned grain depot safety storage monitoring system, as a preferred embodiment, the controller is an STM32F103C8T6 single-chip microcomputer, which is used as the main control unit, responsible for controlling the normal operation of other modules, and receiving and sending signals. The temperature and humidity sensor adopts the DHT11 temperature and humidity detection sensor, and the smoke sensor 17 adopts the MQ-2 smoke detection sensor, both of which serve as the detection part. The temperature and humidity data collection in the granary 1 mainly uses a matrix detection method to detect the entire grain depot environment. The smoke detection adopts a top-level detection method, which can comprehensively detect whether there is a fire hazard in the granary 1. Among them, the matrix detection is adopted for the detection of temperature and humidity. The temperature and humidity sensors are arranged in a matrix manner, and then data is collected, and then sent to other modules through the single-chip microcomputer. The single-chip microcomputer first performs comprehensive calculation and analysis, and then transmits the analyzed data to the mobile phone terminal and the display screen. The LCD1602 display is used to display the temperature, humidity and smoke value of the environment in the granary 1. If the external temperature and humidity are different in different seasons, the upper and lower limits of temperature and humidity need to be adjusted in the granary 1, so as to better ensure the safe and long-term storage of grain.

[0056] The present invention is mainly designed to control the work of other devices with the STM32F103C8T6 single-chip microcomputer as the control chip, because the data detected by the sensor is a digital signal, which can be directly sent to the single-chip microcomputer for processing. After the single-chip microcomputer is processed, the data is transmitted to the display module for display, and the LCD1602 liquid crystal display screen can display the current detected temperature, humidity and smoke concentration values. When the detected temperature, humidity or smoke concentration exceeds the upper limit or is lower than the lower limit, after being processed by the single-chip microcomputer, the system will automatically send a message to the alarm module, and then the buzzer will sound an alarm. At the same time, the wireless module will also send the data to the mobile phone end, so that the mobile phone APP can be used to monitor the environmental changes in the granary 1.

[0057] The present invention also provides a grain depot safe storage monitoring method, which mainly comprises the following steps:

[0058] Step 101: multiple temperature and humidity sensors are installed in the granary 1 to monitor the temperature and humidity at various locations inside the granary 1 in real time.

[0059] Step 102: Obtain the temperature data curve and humidity data curve of various places inside the granary 1 with respect to time.

[0060] Step 103 , setting a first temperature threshold, a second temperature threshold, a first humidity threshold, a second humidity threshold, a first quantity threshold, and a second quantity threshold at various locations inside the granary 1 .

[0061] Step 104 , counting the number of sensors in the granary 1 that have reached a first temperature threshold or a first humidity threshold, and when the number reaches the first threshold, ventilating and drying the air in the granary 1 .

[0062] Step 105 , counting the number of sensors in the granary 1 that have reached the second temperature threshold or the second humidity threshold, and when the number reaches the second number threshold, ventilating and drying the air in the granary 1 .

[0063] Step 106: After a certain period of time, stop ventilating and drying the air in the granary 1.

[0064] Among them, the first temperature threshold is smaller than the second temperature threshold, the first humidity threshold is smaller than the second humidity threshold, and the first quantity threshold is larger than the second quantity threshold.

[0065] Grain can be stored for a longer time in a low temperature and dry environment. The humidity curve of a temperature and humidity sensor at a certain location in a grain warehouse without any interference is as follows: Figure 6 As shown, the temperature curve is Figure 7 As shown. The first humidity threshold is selected as 25, and the second humidity threshold can be selected as 32; the first temperature threshold can be selected as 20, and the second temperature threshold can be selected as 25; in the embodiment of the present invention, the number of temperature and humidity sensors is 24, so the first quantity threshold can be set to 10, and the second quantity threshold can be set to 2. The first humidity threshold and the first temperature threshold are combined with the first quantity threshold to reflect the overall environmental conditions of the grain depot; the second humidity threshold and the second temperature threshold are combined with the second quantity threshold to reflect whether there is an extreme environmental condition at a certain location in the grain depot. No matter which of these two conditions is triggered, the ventilation and drying process of the grain depot will be started.

[0066] Figure 6 The humidity curve shown is the humidity curve within a day (0:00 to 22:00). Figure 6 It can be seen from the figure that the humidity changes in a day. The maximum humidity is around 4 a.m. and 10 p.m., and the temperature is also the lowest at this time. In addition, the lowest humidity is around 2 p.m. Figure 7 The temperature curve shown is the temperature curve in one day (0:00 to 22:00), from Figure 7 It can be seen that the highest temperature is around 14:00 in the afternoon, and the humidity is also the lowest at this time; the lower temperature is around 0:00 or 22:00 in the day, and the humidity is highest at 22:00 at night.

[0067] According to the humidity and temperature curves, it can be seen that temperature and humidity affect each other. When the temperature is high, the humidity is low, but it is worth noting that since there is no sunlight at night, the humidity may not be low when the temperature is high. Therefore, if you want to keep the food storage environment within a stable range, you need to test the temperature and humidity multiple times to find a more suitable method.

[0068] According to the above test values, it can be seen that the temperature difference and humidity difference between day and night are relatively large. In order to keep the grain for a longer time, a device for regulating the temperature and humidity in the grain depot should be added, such as a dryer, an exhaust fan, etc. The embodiment of the present invention adopts a ventilation mechanism to ventilate the grain depot, which can play a role in cooling and drying, and adopts a bin-turning mechanism to prevent the existence of dead corners in the granary 1 that cannot be ventilated.

[0069] The above process is the manual operation process of the grain warehouse. Subsequently, the market for ventilation and drying of the grain warehouse will need to be automatically corrected, which has achieved the purpose of energy saving under the premise of ensuring the safety of grain storage.

[0070] In the above-mentioned grain depot safe storage monitoring method, as a preferred solution, a correction link is also provided, including the following steps:

[0071] Step 201: Taking one day as a cycle, the median of the start time of ventilation and drying of the granary 1 is counted as the initial start time, and the median of the stop time of the last ventilation and drying is counted as the initial stop time.

[0072] Step 202: gradually correct the initial start time of ventilation and drying of the granary 1 to obtain the final start time. The method for correcting the start time is as follows:

[0073] During the first correction, ventilation and drying of granary 1 is started 2 hours in advance to ensure that all temperature and humidity sensors do not reach the first temperature threshold and the first humidity threshold.

[0074] In the following days, ventilation and drying of granary 1 will be started 10 minutes later than the previous day each day until sensors reaching the first temperature threshold or the first humidity threshold begin to appear during the ventilation and drying process of granary 1. The start time of the previous day will be taken as the final start time.

[0075] Step 203, gradually correct the initial end time of ventilation and drying of the granary 1 to obtain the final end time. The correction method of the end time is as follows:

[0076] Each day, the ventilation and drying of granary 1 is stopped 10 minutes earlier than the previous day, until the sensors that reach the first temperature threshold or the first humidity threshold begin to appear after the ventilation and drying of granary 1 is stopped, and the end time of the previous day is taken as the final end time. The setting principle of the end time determines the end time when the correction starts, which must have a margin, so there is no need to add a delay time or advance time for the first time.

[0077] In the above-mentioned grain depot safe storage monitoring method, as a preferred solution, a blind spot prevention link is also provided, including the following steps:

[0078] Step 301: Count the number of times the first temperature threshold and the first humidity threshold of each sensor are reached.

[0079] Step 302: When any sensor reaches the first temperature threshold or the first humidity threshold for a certain number of times, the emptying mechanism is activated to empty the granary 1. The activation time of the emptying mechanism can be set according to the external weather conditions, and the emptying time should be set at the best time of the day under the best temperature and humidity conditions, and avoid before and after rainy days.

[0080] Step 303: After the warehouse is turned over, the number of times counted by each sensor is reset to zero, and the number of times the first temperature threshold and the first humidity threshold of each sensor is counted again.

[0081] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, system, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, system, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, system, article or device including the elements.

[0082] The specific implementation methods provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the system of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A grain depot safety storage monitoring system, characterized in that: It includes a cloud server, a controller, a temperature and humidity monitoring unit, a smoke monitoring unit and a communication module. The temperature and humidity monitoring unit and the smoke monitoring unit are both arranged in a granary and are both electrically connected to the controller. The controller communicates with the cloud server through the communication module. The temperature and humidity monitoring unit includes a plurality of temperature and humidity sensors, a ventilation mechanism and a warehouse-turning mechanism. The plurality of temperature and humidity sensors are dispersedly arranged inside the granary. The ventilation mechanism is used to ventilate and dry the granary. The warehouse-turning mechanism is used to turn the grain in the granary. The signal output end of the temperature and humidity sensor, the control end of the ventilation mechanism and the control end of the warehouse-turning mechanism are all electrically connected to the controller. The plurality of temperature and humidity sensors are respectively a plurality of upper temperature and humidity sensors, a plurality of middle temperature and humidity sensors and a plurality of lower temperature and humidity sensors, the plurality of upper temperature and humidity sensors are dispersedly arranged in the upper part of the granary, the plurality of middle temperature and humidity sensors are dispersedly arranged in the middle part of the granary, and the plurality of lower temperature and humidity sensors are dispersedly arranged in the lower part of the granary; The ventilation mechanism includes a dryer, an air compressor and a plurality of drying pipes, the plurality of drying pipes are arched and arranged side by side at the lower part of the granary, one end of each drying pipe is connected to the air compressor, the air inlet end of the air compressor is connected to the dryer, the drying pipe is fixedly connected to the bottom of the granary through a plurality of pillars, and a plurality of exhaust columns are arranged at the lower side of the drying pipe; The bin tipping mechanism includes a bin tipping motor, a material discharge box, a conveying pipe and an elevator. A bin tipping port is provided at the bottom of the granary, the material discharge box is arranged below the bin tipping port, the bin tipping motor and the conveying pipe are respectively arranged on both sides of the material discharge box, the other end of the conveying pipe is connected to the elevator, and the output end of the elevator is connected to the upper part of the granary; The monitoring method of the grain depot safety storage monitoring system comprises: Multiple temperature and humidity sensors are installed in the granary to monitor the temperature and humidity in various places inside the granary in real time; Obtain the temperature data curve and humidity data curve of various places inside the granary over time; Set a first temperature threshold, a second temperature threshold, a first humidity threshold, a second humidity threshold, and a first quantity threshold and a second quantity threshold at various locations inside the granary; Counting the number of sensors in the granary that reach a first temperature threshold or a first humidity threshold, and when the number reaches the first number threshold, ventilating and drying the air in the granary; Counting the number of sensors in the granary that have reached a second temperature threshold or a second humidity threshold, and when the number reaches the second number threshold, ventilating and drying the air in the granary; After a certain period of time, stop ventilating and drying the granary air; Wherein, the first temperature threshold is less than the second temperature threshold, the first humidity threshold is less than the second humidity threshold, and the first quantity threshold is greater than the second quantity threshold; The monitoring method further comprises: Taking one day as a cycle, the median start time of ventilation and drying of the granary is calculated as the initial start time, and the median stop time of the last ventilation and drying is calculated as the initial stop time; Gradually correct the initial start time of ventilation and drying of the granary to obtain the final start time; Gradually correct the initial end time of ventilation and drying of the granary to obtain the final end time; The gradually corrected initial start time for ventilation and drying of the grain silo includes: Start ventilating and drying the granary 2 hours in advance; The granary ventilation and drying is started 10 minutes later each day than the previous day, until the sensor that reaches the first temperature threshold or the first humidity threshold begins to appear during the ventilation and drying process of the granary, and the start time of the previous day is taken as the final start time; The gradually corrected initial end time of ventilation and drying of the granary includes: The ventilation and drying of the granary is stopped 10 minutes earlier each day than the previous day, until the sensors that reach the first temperature threshold or the first humidity threshold begin to appear after the ventilation and drying of the granary is stopped, and the end time of the previous day is taken as the final end time; The monitoring method further comprises: Counting the number of times the first temperature threshold and the first humidity threshold of each sensor are reached; When any sensor reaches the first temperature threshold or the first humidity threshold for a certain number of times, the grain bin emptying mechanism is activated to empty the grain bin; After the warehouse is turned over, the number of times counted by each sensor is reset to zero, and the number of times the first temperature threshold and the first humidity threshold of each sensor is counted again.

2. The grain depot safety storage monitoring system according to claim 1 is characterized in that: The smoke monitoring unit includes a smoke detection module and an alarm module. The smoke detection module is arranged above the granary. Both the alarm module and the smoke detection module are electrically connected to the controller.

3. The grain depot safety storage monitoring system according to claim 2 is characterized in that: The grain warehouse safety storage monitoring system also includes a display module and a key module. The display module is used to display the data of the temperature, humidity and smoke concentration of the grain warehouse. The key module is used to set or adjust the threshold values ​​of the temperature, humidity and smoke concentration. The display module and the key module are both electrically connected to the controller.

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