A granary environment and safety monitoring device and system
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU UNIV
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-16
AI Technical Summary
Existing grain warehouse monitoring systems are unable to detect grain theft and changes in the grain warehouse environment in real time and accurately. They also cannot work effectively in low light conditions. Furthermore, traditional monitoring devices are time-consuming and labor-intensive, making them unsuitable for long-term unattended scenarios.
It employs a grain surface tilt angle detection module, an environmental parameter monitoring module, a data processing module, and a wireless communication module, combined with grain surface micro-motion detection, to achieve real-time monitoring of grain theft and environmental anomalies through multi-dimensional data analysis. It is also equipped with a hardware encryption module to ensure data security, supports remote data reporting, and features a low-power design.
It improves the accuracy and response efficiency of anomaly detection in grain warehouses, is suitable for long-term unattended scenarios, ensures food safety, reduces false alarms, and realizes multi-dimensional real-time monitoring and remote management of the state of grain in grain warehouses.
Smart Images
Figure CN224365577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain warehouse environmental monitoring and protection technology, specifically, to a grain warehouse environment and safety monitoring device and system for protecting food security. Background Technology
[0002] With the development of agricultural modernization, large-scale grain silos have gradually become the main method of grain storage. However, the security of grain silos remains a significant issue. Besides grain losses caused by environmental factors, grain theft from silos also occurs frequently, causing serious losses to grain reserves. Traditional grain silo monitoring methods mainly rely on manual inspections and simple alarm devices such as doors and windows, such as the Chinese utility model patent published on May 7, 2024, with publication number CN220909326U, entitled "An Electronic Fence for Grain Silo Management." This method is not only time-consuming and labor-intensive, but also makes it difficult to detect anomalies in a timely manner.
[0003] Currently, some grain warehouse monitoring systems on the market have begun to incorporate video surveillance, such as the Chinese invention patent published on December 28, 2018, with publication number CN109101059A, entitled "A Grain Warehouse Information Management System." However, video surveillance presents privacy protection challenges and cannot function effectively in low-light environments. Furthermore, existing monitoring devices often lack real-time monitoring of grain conditions, making it difficult to comprehensively grasp changes in grain surface conditions, temperature, humidity, and other key indicators within the grain warehouse.
[0004] Therefore, providing an intelligent grain warehouse anti-theft monitoring device that can accurately detect grain theft in grain warehouses, monitor changes in the grain warehouse environment in real time, and is suitable for long-term unattended scenarios has become the focus of current research. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing grain warehouse safety monitoring technologies by providing a grain warehouse environment and safety monitoring device and system that can monitor grain theft, monitor changes in the grain warehouse environment in real time, has remote data reporting capabilities, and is low in power consumption and suitable for long-term unattended scenarios.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] In a first aspect, this utility model provides a grain storage environment and safety monitoring device, including a grain surface tilt angle detection module, an environmental parameter monitoring module, a data processing module and a wireless communication module;
[0008] The grain surface tilt angle detection module is connected to the data processing module via an IIC interface to upload the detected grain surface tilt angle to the data processing module.
[0009] The environmental parameter monitoring module is connected to the data processing module via a 485 interface to upload the collected environmental parameter data inside the grain warehouse to the data processing module.
[0010] The data processing module is used to generate a safety alarm when the change in the tilt angle of the grain surface between two adjacent grain surfaces exceeds a set threshold; it is also used to generate an environmental anomaly alarm when the received environmental parameter data exceeds a preset threshold.
[0011] The wireless communication module is connected to the data processing module via a UART interface and is used to transmit security alarm information and environmental anomaly alarm information to the outside world.
[0012] Based on the above, it also includes a grain surface micro-motion detection module;
[0013] The grain surface micro-motion detection module is connected to the data processing module via an IIC interface to upload the monitored grain surface micro-displacement to the data processing module;
[0014] The data processing module is configured with a working mode and a low-power mode.
[0015] In low-power mode, the grain surface micro-motion detection module and the data processing module are powered on and in working condition.
[0016] In working mode, the grain surface micro-motion detection module, the grain surface tilt angle detection module, the environmental parameter monitoring module, the wireless communication module, and the data processing module are powered on and in working condition.
[0017] When the received value of a small displacement change in the grain surface exceeds a set threshold, the data processing module switches from low-power mode to working mode.
[0018] Based on the above, the grain surface tilt angle detection module adopts the ICM-42670-P six-axis MEMS motion tracking sensor; the grain surface micro-motion detection module is the ADXL362 high-precision accelerometer sensor.
[0019] Based on the above, the environmental parameter monitoring module includes a temperature and humidity detection module and a gas detection module;
[0020] The temperature and humidity detection module is used to detect the temperature and humidity data of the grain in the grain warehouse.
[0021] The gas detection module is used to detect key gas data inside the grain silo.
[0022] Based on the above, the temperature and humidity detection module adopts the B-HT-RS40 temperature and humidity detection module, and the gas detection module adopts the ZCE04B four-in-one gas detection module.
[0023] Based on the above, the data processing module uses an STM32 series control chip.
[0024] Based on the above, the grain warehouse environment and safety monitoring device also includes a hardware encryption module;
[0025] The hardware encryption module is connected to the data processing module and is used to encrypt data sent through the wireless communication module.
[0026] Based on the above, the hardware encryption module uses STSAFE series hardware security chips.
[0027] Based on the above, the grain warehouse environment and safety monitoring device also includes a data storage module that is connected to the data processing module via an SPI interface for storing data.
[0028] Secondly, this utility model provides a grain warehouse environment and safety monitoring system, including a number of grain warehouse environment and safety monitoring devices and a remote monitoring terminal deployed on the grain surface of the grain warehouse;
[0029] Each grain warehouse environmental and safety monitoring device is connected to the remote monitoring terminal to upload safety alarm information, environmental anomaly alarm information, and collected data to the remote monitoring terminal.
[0030] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:
[0031] 1. Multi-dimensional monitoring improves detection accuracy;
[0032] Traditional grain warehouse safety monitoring mainly relies on cameras or simple access control systems, which are easily affected by lighting conditions and the external environment, leading to a high false alarm rate. This device combines analysis of changes in grain surface angle with multi-dimensional data such as temperature, humidity, and key gas monitoring to improve the accuracy of detecting abnormal conditions in grain warehouses and ensure food safety.
[0033] 2. Low power consumption design, suitable for long-term unattended operation;
[0034] Employing an STM32 low-power management solution and supporting remote data reporting, this device is suitable for long-term unattended grain silo environments. The device only triggers alarms and uploads data when an anomaly is detected or when a preset wake-up cycle is reached; under normal circumstances, it enters low-power mode to improve battery life.
[0035] 3. Remote monitoring and management improve response efficiency;
[0036] Remote monitoring via remote monitoring terminals allows managers to check the status of grain warehouses at any time and respond quickly to any abnormal situations, thereby improving the efficiency of grain security management. Attached Figure Description
[0037] Figure 1 This is the overall architecture diagram of the system of this utility model.
[0038] Figure 2 This is a schematic diagram of the 485 interface connection principle in this utility model.
[0039] Figure 3 This is a circuit connection diagram of the micro-motion detection module for COFCO flour in this utility model.
[0040] Figure 4 This is a circuit connection diagram of the grain surface tilt angle detection module of this utility model.
[0041] Figure 5 This is a circuit connection diagram of the temperature and humidity sensor in this utility model.
[0042] Figure 6 This is a circuit connection diagram of the gas sensor in this utility model.
[0043] Figure 7 This is the circuit schematic diagram of the data processing module in this utility model.
[0044] Figure 8 This is a circuit connection diagram of the wireless communication module in this utility model.
[0045] Figure 9 This is a circuit connection diagram of the controllable power input module in this utility model.
[0046] Figure 10 This is a circuit connection diagram of the hardware encryption module in this utility model.
[0047] Figure 11 This is a circuit connection diagram of the data storage module in this utility model.
[0048] Figure 12 This is a circuit schematic diagram of the communication download module interface in this utility model.
[0049] Figure 13 This is the circuit schematic diagram of the debugging interface in this utility model. Detailed Implementation
[0050] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0051] Example 1
[0052] like Figure 1 As shown, this embodiment provides a grain storage environment and safety monitoring device, including a grain surface tilt angle detection module, an environmental parameter monitoring module, a data processing module, and a wireless communication module;
[0053] The grain surface tilt angle detection module is connected to the data processing module via an IIC interface to upload the detected grain surface tilt angle to the data processing module.
[0054] The environmental parameter monitoring module is connected to the data processing module via a 485 interface to upload the collected environmental parameter data inside the grain warehouse to the data processing module.
[0055] The data processing module is used to generate a safety alarm when the change in the tilt angle of the grain surface between two adjacent grain surfaces exceeds a set threshold; it is also used to generate an environmental anomaly alarm when the received environmental parameter data exceeds a preset threshold.
[0056] The wireless communication module is connected to the data processing module via a UART interface and is used to transmit security alarm information and environmental anomaly alarm information to the outside world.
[0057] In this embodiment, the data processing module, in conjunction with the grain surface tilt angle detection module, determines whether there is abnormal grain taking or other abnormal behavior by analyzing the grain surface angle deviation. The specific judgment logic is as follows:
[0058] The data processing module obtains the grain surface tilt angle currently detected by the grain surface tilt angle detection module. If the tilt angle of the obtained grain surface is offset in any x, y, z direction by a greater than the previously obtained value than a set threshold, it is determined that there is abnormal grain taking or other abnormal behavior, thereby generating a safety alarm message.
[0059] In this embodiment, the environmental parameter monitoring module specifically includes a temperature and humidity detection module and a gas detection module. The temperature and humidity detection module detects the temperature and humidity data of the grain inside the grain silo; the gas detection module detects key gas data such as CO2, O2, H2S, and CH4 inside the grain silo. The temperature and humidity data of the grain inside the grain silo, as well as the key gas data, are transmitted to the data processing module. If the data exceeds a preset threshold, the data processing module generates an environmental anomaly alarm.
[0060] In this embodiment, to ensure the security of grain warehouse data, the grain warehouse environment and security monitoring device also includes a hardware encryption module. This hardware encryption module is connected to the data processing module and is used to encrypt data transmitted via the wireless communication module. By constructing an end-to-end encrypted tunnel at the physical layer, the hardware encryption module can effectively defend against man-in-the-middle attacks, replay attacks, and eavesdropping, ensuring the privacy of grain warehouse data transmission.
[0061] In this embodiment, the grain storage environment and safety monitoring device also includes a data storage module connected to the data processing module via an SPI interface for storing data. Data detected by the grain surface tilt angle detection module and the environmental parameter monitoring module are stored in the data storage module and transmitted externally along with safety alarm information and environmental anomaly alarm information.
[0062] Example 2
[0063] The difference between this embodiment and Embodiment 1 is that it provides a low-power design suitable for long-term unattended grain warehouse environments and safety monitoring devices.
[0064] A grain storage environment and safety monitoring device, which also includes a grain surface micro-motion detection module;
[0065] The grain surface micro-motion detection module is connected to the data processing module via an IIC interface to upload the monitored grain surface micro-displacement to the data processing module;
[0066] The data processing module is configured with a working mode and a low-power mode.
[0067] In low-power mode, the grain surface micro-motion detection module and the data processing module are powered on and in working condition.
[0068] In working mode, the grain surface micro-motion detection module, the grain surface tilt angle detection module, the environmental parameter monitoring module, the wireless communication module, and the data processing module are powered on and in working condition.
[0069] When the received value of a small displacement change in the grain surface exceeds a set threshold, the data processing module switches from low-power mode to working mode.
[0070] In this embodiment, in low-power mode, all modules except the grain surface micro-motion detection module and the data processing module (grain surface tilt angle detection module, environmental parameter monitoring module, and wireless communication module) are powered off. After waking up from low-power mode, the other modules begin operation.
[0071] In this embodiment, the grain surface micro-motion detection module acts as a sentinel. Normally, the data processing module operates in low-power mode. When a micro-motion is detected, it activates the grain surface tilt angle detection module, the environmental parameter monitoring module, and the wireless communication module. The data processing module, in conjunction with the grain surface tilt angle detection module, determines whether there is abnormal grain handling or other abnormal behavior based on the grain surface angle deviation. Simultaneously, the data processing module, in conjunction with the environmental parameter monitoring module, determines whether there are any environmental anomalies based on the environmental parameter monitoring results. If an alarm is detected, the data processing module, in conjunction with the wireless communication module, transmits the alarm information and the detected data externally via the wireless communication module; otherwise, it transmits the detected data externally via the wireless communication module.
[0072] Those skilled in the art will understand that in the device of this embodiment, the data processing module can also be set to automatically wake up periodically. After the set period, the data processing module automatically switches from low-power mode to working mode.
[0073] Example 3
[0074] This embodiment provides a specific implementation method for a grain storage environment and safety monitoring device.
[0075] like Figures 2-13 As shown, the grain surface tilt angle detection module uses an ICM-42670-P six-axis MEMS motion tracking sensor, the grain surface micro-motion detection module uses an ADXL362 high-precision accelerometer sensor, the temperature and humidity detection module uses a B-HT-RS40 temperature and humidity detection module, the gas detection module uses a ZCE04B four-in-one gas detection module, the wireless communication module is an NB-IoT (EC01) module, the data processing module uses an STM32L151C8T6A control chip, and the hardware encryption module uses an STSAFE series hardware security chip. In addition, this grain silo environment and safety monitoring device also includes a controllable power input module for power management, a communication download module interface for downloading factory programs, and a debugging interface for developers.
[0076] Example 4
[0077] Based on Example 2, this example provides a grain warehouse environment and safety monitoring system, including several grain warehouse environment and safety monitoring devices and a remote monitoring terminal deployed on the grain surface of the grain warehouse;
[0078] Each grain warehouse environmental and safety monitoring device is connected to the remote monitoring terminal to upload safety alarm information and environmental anomaly alarm information to the remote monitoring terminal.
[0079] Those skilled in the art should understand that, in the system of this embodiment, the data detected by the grain surface tilt angle detection module and the environmental parameter monitoring module can also be uploaded to the remote monitoring terminal for remote monitoring along with safety alarm information and environmental anomaly alarm information.
[0080] In this embodiment, safety alarm information and environmental anomaly alarm information are sent to the remote monitoring terminal through the wireless communication module for alarm activation. At the same time, it can also receive remote control commands to adjust the parameters of the grain surface micro-motion detection module, grain surface tilt angle detection module, grain temperature and humidity sensor module, gas sensor module, etc.
[0081] The working process of the grain warehouse environment and safety monitoring system in this embodiment:
[0082] Several grain storage environment and safety monitoring devices were placed on the grain surface in key areas inside the grain storage.
[0083] During routine monitoring, the system's grain surface micro-motion detection module is always in sentinel mode, continuously monitoring grain surface micro-motion.
[0084] If the grain surface micro-motion detection module detects abnormal grain surface displacement, the data processing module will be activated and enter working mode. If the grain surface tilt angle detection module detects an abnormal grain surface tilt angle, the data processing module will send a safety alarm message and the detected data to the remote monitoring terminal to remind management personnel of possible abnormal grain handling or other abnormal behavior, so that timely intervention measures can be taken.
[0085] When the data processing module is activated, if abnormal changes in temperature, humidity, or key gases are detected inside the grain silo, the data processing module will upload environmental anomaly alarm information and detected data to the remote monitoring terminal via the wireless module, reminding management personnel to take appropriate measures.
[0086] Managers can check the status of the grain warehouse at any time and adjust the monitoring parameters remotely when necessary to ensure the safe and stable operation of the grain warehouse.
[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A grain storage environment and safety monitoring device, characterized in that: It includes a grain surface tilt angle detection module, an environmental parameter monitoring module, a data processing module, and a wireless communication module; The grain surface tilt angle detection module is connected to the data processing module via an IIC interface to upload the detected grain surface tilt angle to the data processing module. The environmental parameter monitoring module is connected to the data processing module via a 485 interface to upload the collected environmental parameter data inside the grain warehouse to the data processing module. The data processing module is used to generate a safety alarm when the change in the tilt angle of the grain surface between two adjacent grain surfaces exceeds a set threshold; it is also used to generate an environmental anomaly alarm when the received environmental parameter data exceeds a preset threshold. The wireless communication module is connected to the data processing module via a UART interface and is used to transmit security alarm information and environmental anomaly alarm information to the outside world.
2. The grain storage environment and safety monitoring device according to claim 1, characterized in that: It also includes a grain surface micro-motion detection module; The grain surface micro-motion detection module is connected to the data processing module via an IIC interface to upload the monitored grain surface micro-displacement to the data processing module; The data processing module is configured with a working mode and a low-power mode. In low-power mode, the grain surface micro-motion detection module and the data processing module are powered on and in working condition. In working mode, the grain surface micro-motion detection module, the grain surface tilt angle detection module, the environmental parameter monitoring module, the wireless communication module, and the data processing module are powered on and in working condition. When the received value of a small displacement change in the grain surface exceeds a set threshold, the data processing module switches from low-power mode to working mode.
3. The grain storage environment and safety monitoring device according to claim 2, characterized in that: The grain surface tilt angle detection module uses an ICM-42670-P six-axis MEMS motion tracking sensor; the grain surface micro-motion detection module uses an ADXL362 high-precision accelerometer sensor.
4. The grain storage environment and safety monitoring device according to claim 1, characterized in that: The environmental parameter monitoring module includes a temperature and humidity detection module and a gas detection module; The temperature and humidity detection module is used to detect the temperature and humidity data of the grain in the grain warehouse. The gas detection module is used to detect key gas data inside the grain silo.
5. The grain storage environment and safety monitoring device according to claim 4, characterized in that: The temperature and humidity detection module adopts the B-HT-RS40 temperature and humidity detection module, and the gas detection module adopts the ZCE04B four-in-one gas detection module.
6. The grain storage environment and safety monitoring device according to claim 1, characterized in that: The data processing module uses an STM32 series control chip.
7. The grain storage environment and safety monitoring device according to any one of claims 1-6, characterized in that: The grain warehouse environmental and safety monitoring device also includes a hardware encryption module; The hardware encryption module is connected to the data processing module and is used to encrypt data sent through the wireless communication module.
8. The grain storage environment and safety monitoring device according to claim 7, characterized in that: The hardware encryption module uses STSAFE series hardware security chips.
9. The grain storage environment and safety monitoring device according to any one of claims 1-6, characterized in that: The grain warehouse environment and safety monitoring device also includes a data storage module that is connected to the data processing module via an SPI interface for storing data.
10. A grain storage environment and safety monitoring system, characterized in that: Includes several grain warehouse environment and safety monitoring devices and remote monitoring terminals as described in any one of claims 1-9, installed inside the grain warehouse; Each grain warehouse environmental and safety monitoring device is connected to the remote monitoring terminal to upload safety alarm information, environmental anomaly alarm information, and collected data to the remote monitoring terminal.