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Temperature and Humidity Monitoring System for Internet of Things in Dujiangyan Modern Agricultural Demonstration Park Xingnong Vegetable Planting Base—— 【鑫 芯 物 联】

来自: 成都鑫芯电子科技有限公司 浏览次数:4520 2016-11-09From : Chengdu Xinxin Electronic Technology Co., Ltd.

Chapter 1: Automatic Control System of Agricultural Internet of Things

1.1 Overview of Automatic Control System

With the improvement of living standards, people's monitoring requirements for food production, distribution and storage are becoming higher and higher, especially for the monitoring of production link indicators. Relevant departments have even included this content in the assessment indicators. Due to the large number of detection points, traditional environmental monitoring equipment and technology can no longer be adapted to the needs of refinement and diversification, which requires us to develop a multi-point, remote and convenient environmental intelligent monitoring system in combination with modern science and technology. Our company uses scientific technology and combined with the actual needs of users to launch an intelligent monitoring and control system for the links in the greenhouse , which ensures that the greenhouse environment meets the needs of production, research and living to the greatest extent.

After on-site environmental investigation, combined with the functional requirements of the department, the following system plan was made specifically for the modern agricultural demonstration garden in Dujiangyan.

都江堰示范园

1.2 System Content Introduction

The most advanced overall software and hardware solution for greenhouse environmental monitoring ( smart agriculture ) in China, which combines the Internet of Things and software technologies and rich practical experience in the field of Internet of Things.

The system can remotely acquire the air temperature, air humidity, soil moisture, soil temperature and humidity , light intensity, and remote video capture of the corresponding greenhouse in real time. Through the upper and lower limits of temperature and humidity, automatic control of greenhouse wet curtain fans, sprinkler drip irrigation, internal and external shading, top windows and side windows, heating and supplementary lighting and other equipment can be automatically controlled. At the same time, the manager can remotely adjust the video camera (focus, rotate, screen capture, etc.), the system can also push real-time alarm information to the manager through information terminals such as computers, to achieve information and intelligent remote management of the greenhouse, and give full play to the Internet of Things The role of technology in facility agricultural production ensures that the environment in the greenhouse is most suitable for crop growth and achieves refined management, creating conditions for high yield, high quality, high efficiency, ecology, and safety of crops, helping customers improve efficiency, reduce costs, and increase revenue.

The system software adopts C / S architecture, and the system software is installed on the user's own PC, which is convenient for the user to observe the data at any time. C / S architecture interface and operation are very rich and intuitive. Security performance can be guaranteed, with ordinary users and superuser login permissions. The software responds quickly. The system hardware system uses the (wireless) environmental greenhouse intelligent monitoring terminal independently developed by Chengdu Jingkun. It is highly integrated and easy to install, plug and play, stable and reliable, and easy to maintain.

Chapter 2: Greenhouse Environment Collection and Control Part

2.1 Principles of Greenhouse Environment Monitoring and System Implementation

The Dujiangyan Modern Agricultural Demonstration Park has only external screens, fans, and sprinkler irrigation systems inside the greenhouse. Temperature sensors , humidity sensors , light sensors , soil moisture, and soil temperature sensors are arranged inside the greenhouse to collect the internal environmental parameters of the greenhouse. Collect to reverse control the corresponding equipment inside the greenhouse, so that the environment inside the greenhouse reaches an environmental strip suitable for crop growth.

(1) Remotely view real-time environmental data of the greenhouse through a computer, including (wireless) air temperature, (wireless) air humidity, (wireless) soil temperature, (wireless) soil humidity, (wireless) soil moisture, (wireless) light intensity, ( The terminal receives all the sensor data and transmits it to the designated office server computer through the wireless band 779HZ. The office can realize remote real-time viewing of various environmental parameters in the greenhouse.

(2) Greenhouse environment alarm records and timely text message alarm reminders, users can directly handle alarms, system records processing information, and can automatically control greenhouse equipment.

(3) Automatically control the environmental equipment in the greenhouse to improve work efficiency, such as automatic irrigation systems, fans, side windows, roof windows, etc.

(4) The user can directly view the real-time curve graph of the greenhouse environment data and grasp the greenhouse crop growth environment in time.

(5) The user can see the video of the greenhouse environment and the corresponding environmental parameters on the PC and mobile APP.

系统构架图


系统构架图

System architecture diagram

2.2 Intelligent alarm system

(1) The system can flexibly set the upper and lower thresholds of different environmental parameters of each greenhouse. Once the threshold is exceeded, the system can remind the corresponding managers through mobile phone text messages, system messages, etc., according to the configuration.

(2) The SMS alarm reminder can set up a mobile phone number for multiple people to prevent unnecessary losses caused by users who do not receive the message due to personal mobile phone problems and fail to handle the failure in a timely manner.

(3) The associated greenhouse equipment can be viewed according to the alarm records, and the various data of the greenhouse equipment can be viewed remotely in a timely and fast manner, and the environmental issues of the greenhouse can be efficiently handled.

(4) The equipment in abnormal state can be found in time, and the administrator can be promptly reminded through SMS or system message to ensure the stable operation of the system.

2.3 Remote automatic control:

(1) The system uses advanced industrial automation control technology to automatically control greenhouse equipment when the set upper and lower limits are exceeded, without manual operation.

(2) You can customize the rules to allow the entire greenhouse equipment to automatically control with changes in environmental parameters. For example, when the soil moisture is too low, the greenhouse irrigation system automatically starts watering, and when the air temperature is too high, the greenhouse exhaust fan system automatically works.

(3) Independent research and development design of the system software and hardware company can provide secondary development if the user has specific needs.

(4) Can control the corresponding equipment in the greenhouse by remote mobile phone.

2.4 Historical data analysis:

(1) The system can query and compare historical environmental data by combining different conditions.

(2) Supports two different ways to view the list and chart, users can see the historical data curve more intuitively.

(3) Establish a unified data model with agricultural production data. The system can analyze environmental parameters that are more suitable for crop growth and can most improve crop yield through data mining and other technologies to assist decision-making.

2.5 system advantages:

(1) Data collection. All sensors are imported sensors. High precision and high stability.

(2) Convenience of on-site installation. Wall-mounted installation.

(3) Reliability of wireless transmission. Adopt 852MHz channel communication, wireless transmission has strong AES encryption function, strong anti-interference, and there are abundant communication channels to choose from.

(4) The data shows concentration. The sensor data of each detection point is sent to the LCD screen for display, and then transmitted to the computer of the management center for centralized display, which is clear at a glance, and avoids manual inspection and recording at regular intervals.

(5) Automatic linkage control. The field device can set the upper and lower limits by itself, and can also send commands to control through the system software without manual operation. More systematic and scientific control mode.

2.6 Wireless temperature and humidity sensor :

Wireless temperature and humidity sensor X2W850-H1 is a network type transmitter using digital temperature and humidity sensor , which converts the temperature and humidity in the environment into corresponding digital signals; it can upload temperature and humidity data through a wired network connection Real-time monitoring for the host; The sensor uses a high-quality integrated digital temperature and humidity sensor to ensure the transmitter's excellent long-term stability, low latency, and resistance to chemical pollution, with excellent repeatability.

2.7 Wireless soil moisture sensor:

Wireless soil moisture sensor upper and lower limit setting function, set the upper and lower limits of monitoring parameters;

Over-limit alarm, when real-time monitoring data exceeds the set upper or lower limit, an alarm can be issued;

The control function can start the control when the real-time monitoring data exceeds the limit according to the preset control mode;

2.8. Wireless light sensor :

上下限设置功能,设置监测参数的上限值与下限值; The wireless light sensor has the function of setting the upper and lower limits to set the upper and lower limits of the monitoring parameters;

Over-limit alarm, when real-time monitoring data exceeds the set upper or lower limit, an alarm can be issued;

The control function can start the control when the real-time monitoring data exceeds the limit according to the preset control mode;

2.9 Solar small weather:

The small solar weather station 7 requires environmental monitoring, mainly for the environmental monitoring of the professional modern agricultural demonstration garden for vegetable farmers in Dujiangyan City. Parameters: The weather station uses GPRS transmission / solar power. 光照强度传感器 太阳辐射传感器, 土壤水分温度传感器, 雨量传感器, 风速传感器, 风向传感器。 7 elements include: air temperature sensor, light intensity sensor , solar radiation sensor, soil moisture temperature sensor, rainfall sensor, wind speed sensor, wind direction sensor.

温湿度监控系统案例

Chapter 3: Remote Video Surveillance

3.1 Project Construction Background:

With the development of society and economy, as an important way of sustainable agricultural development, facility agriculture has received more and more attention from countries around the world. The construction and development of emergent projects in facility agriculture are an important part of urban development and facilities. In the advanced stage of agricultural development, greenhouse production has broken through the traditional agricultural model, avoiding the restriction of continuous crop planting by geographical, natural environment, climate and other factors, thus becoming a new crop planting technology, which is of great significance to the development of agriculture.

China is a large agricultural country. At present, vegetable greenhouses have become an important industry in some rural areas in China and are the main source of economic income for local farmers. Vegetable greenhouses have gradually become large-scale and group-oriented. With the vigorous development and widespread use of electronic and wireless communication technologies, Cited, agricultural greenhouse technology is also developing in the direction of automation and information technology. The greenhouse video monitoring system based on the Ethernet communication interface technology realizes the unmannedness of the greenhouse, and can also realize the monitoring or remote control of the greenhouse and various data through various terminals.

With the development of the greenhouse economy, cases of material theft often occur. Although the method of setting up points and patrolling has been used, it has not been effective. As the operator of the greenhouse, the most troublesome problems are two points: one is the problem of theft prevention of the crops under management; the other is the growth status of the crops. Most operators camped in the greenhouse and guarded Zasey day and night. The larger the size of the greenhouse, the greater the cost and manpower invested in the care, which severely restricted the development and expansion of vegetable production areas.

For this reason, how to properly handle the relationship between safety and production, safety and efficiency, how to accurately, real-time and quickly perform the full monitoring function of the greenhouse, effectively manage the greenhouse, and face the new situation, new opportunities and new challenges. Leaders put forward high requirements and expectations for work safety. In response to this trend, Chengdu Jingkun System Engineering Technology Co., Ltd. launched this set of vegetable greenhouse video intelligent monitoring system . For the sake of farmers, modern electronics technology will be introduced into agricultural greenhouses .

3.2 Demand analysis

Security monitoring is mainly by installing cameras around the greenhouse to monitor the surrounding environment outside the greenhouse, so as to prevent theft and destruction of the greenhouse by illegal elements, and to install cameras in the greenhouse to realize real-time understanding of crop growth, so as to effectively To the role of safety precautions, reducing the labor force of working farmers, improving work efficiency. The monitoring system escorted the safety of the greenhouse, provided security protection for the production of agricultural bases, and urged production staff to standardize operations.

In order to better care for greenhouses and reduce the difficulty of vegetable greenhouse management on the basis of reducing costs, this agricultural greenhouse greenhouse panoramic video monitoring system designed and developed by our company establishes greenhouse video mainly based on digital video surveillance. The monitoring system contributes to the safety of the vegetable greenhouse and the improvement of the management system.

The agricultural security management system refers to a set of advanced and reliable systems and system equipment as the infrastructure to provide the park with an intelligent, safe, comfortable and convenient high-tech agricultural comprehensive park integrating planting, research and development, and leisure. Based on the current development status of the domestic security management system, combined with the positioning and needs of the "Dujiangyan Modern Agriculture Demonstration Park", the company designed the "Dujiangyan Modern Agriculture Demonstration Park" security management system composed of the following subsystems:

3.3 Video surveillance overall architecture design:

视频监控


Video surveillance architecture

Chapter Four. Introduction of automatic control software system

4.1 System architecture description:

系统构架描述

System architecture description

Note: This system adopts the cloud service mode, allowing users to view and manage various types of information locally, as well as remotely view and manage various data and equipment to achieve the purpose of real-time data control and provide more timely and accurate real-time data support .

软件图

All kinds of sensor data are transmitted to the local computer through the serial port or TCP / IP. The data is transferred to the network server through the local computer, and the data is recorded on the server, and such data is transmitted to the user through the network. Mobile app for display. At the same time, the user can open and close the device through the mobile APP, and can also set the rules for automatic opening and closing of each device.

You can view the real-time video data of a certain location area through mobile phones and web pages. And grasp the climate data of this area to see if it is consistent with the growing environment of crops in this area.

4.2 Mobile APP display interface:

手机界面展示

Mobile APP control device interface:

手机控制界面


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