CN202975763U - Remote wireless monitoring and early warning system of agricultural integration information - Google Patents

Abstract

The utility model discloses an agricultural comprehensive information remote wireless monitoring and early warning system applied to agricultural production and scientific research, comprising a monitoring center, a base station and more than one monitoring front end: each monitoring front end includes an environmental parameter acquisition module, a global positioning system GPS module, DSP multimedia processor, human-machine interface module, alarm device, 3G module and WiFi module, the monitoring center includes monitoring platform, network server, database server; the monitoring front-end collects various environmental parameters of agricultural production and scientific research sites in real time , the collected monitoring information is sent to the base station through the 3G module, and the monitoring information is forwarded by the base station to the remote monitoring center gateway, and then handed over to the servers of the monitoring center for corresponding processing. The utility model can realize unmanned remote monitoring in a large area of crops and livestock breeding areas, saves manpower, improves real-time monitoring, flexible and convenient installation, stable system operation, and greatly improves the efficiency of agricultural production.

Description

Remote wireless monitoring and early warning system for comprehensive agricultural information

1. Technical field

The utility model relates to the fields of agriculture and scientific research informatization, in particular to a remote wireless monitoring and early warning system for comprehensive agricultural information.

2. Background technology

In recent years, with the development of computer network, communication technology and multimedia technology, the traditional monitoring system is constantly developing in a new direction and constantly updating. In order to correspond to computers, traditional analog equipment has begun to convert to digital equipment; digital data has begun to be conveniently transmitted and managed; security network equipment can be used to connect other digital products to expand the scope of application; the demand for remote transmission is also increasing , which shows that video surveillance technology has fully entered the digital age. The development of network information; many buildings already have local area network and wide area network; there are many requirements to upgrade the system under the control of PC; image processing with PC has a lot of flexibility; a variety of data storage hardware (hard disk, backup CD, etc.) development Soon, the development of infrastructure created conditions for the development of video surveillance technology.

Although wireless video monitoring has been widely used in industrial production, residents' life and other fields, due to the cultural quality of producers and the cost control of communication equipment, the application of wireless monitoring in agricultural production and breeding Not widely. Most of the wireless monitoring systems used in agriculture on the market now use small single-chip microcomputers as the control core, and the transmission medium uses radio frequency modules. This type of system has low wireless communication bandwidth and low calculation speed of the control core, and some cannot realize high-definition For real-time video transmission, although some video transmission is realized, a lot of resources are sacrificed in video codec, and the integration of other functions cannot be realized.

Document 1: Chinese Patent CN1,916,790A. Zhan Jinchuan. Crop Cultivation Monitoring System and Monitoring Method. 2006.9. Disclosed a crop cultivation monitoring system integrating control components, sensing modules and computer monitoring modules, wherein the monitoring front end only The temperature, humidity, pH sensor has no video monitoring function and early warning function, and its transmission method is limited to wired transmission, so remote monitoring cannot be realized. Its limitations are also manifested in that it can only monitor the growth process of crops, and is restricted by time and geographical conditions on the monitor, and its function expansion is poor.

3. Contents of utility model

The purpose of this utility model is to provide a remote wireless monitoring and early warning system for agricultural comprehensive information that can accurately, efficiently and timely monitor the on-site information of agricultural production, aiming at improving the convenience and efficiency of agricultural production.

The technical solution to realize the purpose of this utility model is: a remote wireless monitoring and early warning system for agricultural comprehensive information, including a monitoring center, a base station and more than one monitoring front end: wherein each monitoring front end includes an environmental parameter acquisition module, a global positioning system GPS Module, DSP multimedia processor, man-machine interface module, alarm device, 3G module and WiFi module, monitoring center includes monitoring station, network server, database server; Described environmental parameter acquisition module is divided into video acquisition module, temperature and humidity sensor and illumination Three parts of the sensor, the man-machine interface module is divided into two parts of LCD touch screen and 4X4 buttons, and the alarm device is composed of more than one infrared sensor, one alarm bell and one alarm indicator light;

The internal connection relationship of each monitoring front end is as follows: the CCD camera of the video acquisition module is connected with the video decoding chip through the analog video signal line CVBS, and the video decoding chip is connected with the DSP multimedia processor through the high-definition digital signal input line; the temperature and humidity sensor adopts The integrated chip is connected to the DSP multimedia processor in the form of I2C interface; the light sensor is connected to the A/D port of the DSP multimedia processor; the GPS module of the global positioning system is connected to the DSP multimedia processor through RS232; the 4X4 button is connected to the DSP multimedia processor through the IO port. The keyboard control chip is connected, and the DSP multimedia processor is connected to the keyboard control chip in the form of I2C interface; the input interface of the LCD touch screen is connected to the touch screen controller, and the touch screen controller and the DSP multimedia processor are interconnected by SPI serial peripherals. The video output signal port of the DSP multimedia processor is connected to the LCD touch screen; the alarm bell and warning light are connected to the DSP multimedia processor through the IO port, and the infrared sensor is connected to the A/D input terminal of the DSP multimedia processor through the conditioning circuit; 3G module and the WiFi module are respectively connected to the DSP multimedia processor through the UART serial port;

The monitoring front ends are respectively placed in different agricultural production places, and each monitoring front end is interconnected by a WiFi module, and the 3G module of each monitoring front end is interconnected with the monitoring center through a base station; the monitoring platform, the network server, and the database server are in the form of a local area network interconnected.

The remote wireless monitoring and early warning system for agricultural comprehensive information of the utility model, the local area network information sharing is set up between the monitoring front ends, with one monitoring front end as the central monitoring front end, and other monitoring front ends are connected with the central point monitoring front end to form a star topology structure.

The utility model relates to a remote wireless monitoring and early warning system for agricultural comprehensive information. The DSP multimedia processor adopts a DM365 chip.

Compared with the prior art, the utility model has the following remarkable advantages: 1. It realizes unmanned remote monitoring, saves manpower, improves the timeliness of monitoring, and the breeder can have a panoramic view of the breeding place information without leaving home And it can respond to emergencies in a timely and accurate manner; 2. The monitoring information is released to the public website, and mobile phone users and Internet users can log in and visit the public website of the monitoring center server anywhere to obtain corresponding information, which is convenient for managers to monitor anytime and anywhere; 3. A star topology structure is formed between the monitoring front ends. When a 3G module of the monitoring front end fails, the information can be transmitted to the central point monitoring front end through the WiFi module, and then sent to the monitoring center, which improves the stability and capacity of the system. Fault capability; 4. The appearance of the product is small and concise, low power consumption, no noise, flexible and convenient installation, stable system operation, which greatly improves the efficiency of agricultural production.

Four drawings

Fig. 1 is a schematic diagram of the remote wireless monitoring and early warning system for comprehensive agricultural information of the present invention.

Fig. 2 is a structural diagram of the monitoring front end of the utility model agricultural comprehensive information remote wireless monitoring and early warning system.

Fig. 3 is a structural diagram of the environment information collection module of the utility model agricultural comprehensive information remote wireless monitoring and early warning system.

Fig. 4 is a working flow chart of the remote wireless monitoring and early warning system for agricultural comprehensive information of the utility model.

Five specific implementation methods

Below in conjunction with accompanying drawing, the utility model is described in further detail.

In conjunction with Fig. 1, the remote wireless monitoring and early warning system for agricultural comprehensive information of the utility model includes a monitoring center, a base station and more than one monitoring front end: wherein each monitoring front end is shown in Fig. 2, including an environmental parameter acquisition module, a global positioning system GPS Module, DSP multimedia processor, man-machine interface module, alarm device, 3G module and WiFi module, monitoring center includes monitoring station, network server, database server; Described environmental parameter acquisition module is divided into video acquisition module, temperature and humidity sensor and illumination Three parts of the sensor, the man-machine interface module is divided into two parts of LCD touch screen and 4X4 buttons, and the alarm device is composed of more than one infrared sensor, one alarm bell and one alarm indicator light;

The internal connection relationship of each monitoring front end is as follows: in conjunction with the structural diagram of the environmental information acquisition module in Fig. 3, the CCD camera of the video acquisition module is connected with the video decoding chip through the analog video signal line CVBS, and the video decoding chip is connected with the video decoding chip through the high-definition digital signal input line. DSP multimedia processor is connected; the temperature and humidity sensor adopts an integrated chip and is connected to the DSP multimedia processor in the form of I2C interface; the light sensor is connected to the A/D port of the DSP multimedia processor; the GPS module of the global positioning system is connected to the DSP multimedia through RS232 Processor connection; 4X4 keys are connected to the keyboard control chip through the IO port, and the DSP multimedia processor is connected to the keyboard control chip in the form of I2C interface; the input interface of the LCD touch screen is connected to the touch screen controller, and the touch screen controller is connected to the DSP multimedia processor Interconnected by SPI serial peripherals, the video output signal port of the DSP multimedia processor is connected to the LCD touch screen; the alarm bell and warning light are connected to the DSP multimedia processor through the IO port, and the infrared sensor is connected to the DSP multimedia processor through the conditioning circuit The A/D input terminal is connected; the 3G module and the WiFi module are respectively connected to the DSP multimedia processor through the UART serial port;

The monitoring front ends are respectively placed in different agricultural production sites such as crop planting places, poultry breeding places and livestock breeding places, etc., and each monitoring front end is interconnected through a WiFi module, and each monitoring front end's 3G module is interconnected with the monitoring center through a base station; The monitoring station, the network server, and the database server are interconnected in the form of a local area network; the information sharing of the local area network is set up between the monitoring front ends, with one monitoring front end as the center point, and other monitoring front ends are connected to the center point to form a star topology structure, all monitoring The front-end information is collected at the central point and sent to the base station in a 3G manner; the DSP multimedia processor uses a DM365 chip and is equipped with off-chip memory, FLASH, E2PROM, SD card and DDR2.

1. The following is a detailed introduction to the working principle between the various modules of the monitoring front end:

(1) In order to facilitate the operation and setting of the monitoring front-end equipment, a human-machine interface module is added to the monitoring front-end, which is divided into two parts: a true-color touch screen and a 4X4 digital button. The man-machine interface module and DSP communicate with each other through the IO port and a special digital interface. The operator can set different warning thresholds, switch between normal working mode and unmanned automatic warning mode, and also communicate with the monitoring center through SMS. to communicate.

(2) The alarm device consists of multiple infrared sensors, an alarm bell and a red warning light. The alarm bell and the warning light are connected with the DSP multimedia processor through the IO port, and the infrared sensor is connected with the A/D input terminal of the DSP multimedia processor through the conditioning circuit. When no one enters or exits the breeding ground, the unmanned automatic early warning mode of the monitoring front-end device is activated, and the infrared sensors placed on each door, window or fence wall will be activated at the same time. If there are emergencies (such as people breaking in and stealing livestock, crops or other biological hazards), the infrared sensor will be triggered to generate a voltage change. When this change exceeds the threshold set by the DSP multimedia processor, an alarm level will be generated, thereby generating an alarm. Interruption, the program response is interrupted, the alarm bell and alarm indicator light are turned on, and the alarm is sent to the monitoring center in time with GPS information. The monitoring center system quickly locates the accident site according to the alarm information, so as to effectively and quickly stop the harmful behavior. In order to avoid system defects, an automatic alarm mode is also set up in the monitoring center. When the monitor finds a dangerous event, the alarm system can be manually triggered. The sensitivity and type setting of the alarm system can also be modified according to specific conditions.

(3) The GPS module of the global positioning system transmits the acquired current geographic location information of each agricultural production site to the DSP multimedia processor.

(4) As shown in Figure 3, the environmental parameter acquisition module is divided into three parts: video acquisition module, temperature and humidity sensor and light sensor: 1) The temperature and humidity sensor uses a high-precision digital temperature and humidity sensor to obtain local indoor space or outdoor soil water area The temperature and humidity of the environment are connected to the DSP multimedia processor through the I2C serial bus interface. Compared with the original independent analog output temperature sensor and humidity sensor, the integrated structure of the high-precision digital temperature and humidity sensor makes it have the characteristics of good quality, fast response, anti-interference, and low price; 2) The light sensor according to the light intensity Different output 0-2v analog voltage signals, this signal is input to the A/D port of the DSP multimedia processor for analog-to-digital conversion, and the corresponding light intensity information is generated. For some organisms that are sensitive to environmental factors, the environmental parameters can be accurately measured. Timely regulation is of great help to increase the output of agricultural products; 3) The video acquisition module is set up on a three-axis rotating pan-tilt, which enables the CCD camera to cover observation points from multiple angles; the CCD camera is equipped with infrared spotlights to solve heavy fog and heavy rain Lighting problems in harsh environments, such as lighting problems; there are lightning protection measures to prevent the lightning strikes in outdoor thunderstorms from causing a devastating blow to the entire system; the high-definition analog video signal collected by the CCD camera is input to the high-definition video conversion chip, and the high-definition video conversion chip can Realize the digital conversion of R/Pr, G/Y, B/Pb signals, the conversion rate is up to 165MHz, the resolution is up to 1080P, the DSP multimedia processor configures it through the IIC bus, and the converted video stream is output to the DSP multimedia processor for processing .

(5) The WiFi module is used to establish the communication of the local area network between the monitoring front ends, and is connected with the DSP multimedia processor in the form of a UART serial port. The sending of monitoring front-end data packets can be set in master-slave mode: in slave mode, the monitoring front-end in the LAN can send the collected data to the same monitoring front-end as the central point, and the central point will send it to the base station through 3G technology ; In the main mode, all monitoring front-ends do not build a LAN, and use their own 3G modules to send data to the base station. The advantage of this is: resource saving, 3G module consumes more electricity than WiFi, if all front-ends use 3G modules to work together, the power consumption will be large, if a local area network is formed to send data uniformly, resources can be better saved; when a front-end 3G module fails If it cannot be processed in time, the data can be shared to another front-end in the form of LAN, and then transmitted, which improves the stability and fault tolerance of the system.

(6) The 3G module is interconnected with the DSP multimedia processor through the UART serial port, sends out the packaged information of the DSP multimedia processor, and can also receive instructions from the monitoring center.

(7) DSP multimedia processor adopts DM365. The VPFE interface on the DM365 can support multiple formats of video input formats, and a monitoring front end can support 4-channel high-definition video input at the same time. Compared with the previous single-chip processing video stream, it greatly saves control chip resources and reduces costs; DM365 mainly performs H.264 compression on the input video data, and at the same time packs and integrates the environmental information collected by other sensors; DM365 also provides high-definition digital video input interface. Just type it in.

DM365 integrated information output part: DM365 is embedded with ARM microprocessor, the core function of which is to forward the data stream. ARM completes the encapsulation of compressed data first, and then completes the sending of data packets through the 3G module. In addition, the ARM is also responsible for parsing the received data, forwarding the relevant parameter commands sent by the PC, performing corresponding calculation settings (video compression bit rate, frame rate, etc.), and realizing the control of the peripherals (pan/tilt controller, alarm, etc.) through the serial port. devices, etc.), initialization of other modules on the system through GPIO, etc.

Finally, the DSP multimedia processor transmits the information through the 3G wireless transmission module. The advantages of DM365 are: 1) Advanced compression algorithm access in 2G/3G network environment, the minimum upload bandwidth of 30Kbps can meet the viewing needs of the mobile terminal, and the minimum upload bandwidth of 100Kbps can meet the simultaneous viewing of mobile terminal and computer terminal Requirements; 2) On 2G/3G mobile phone terminals, smooth video viewing effect can be guaranteed, and the code rate is only maintained at 40Kbps-60Kbps; 3. H.264 hard-coding technology in line with JVT (ITU-T, ISO Joint Organization) standard is adopted, Real-time encoding and compression capability, also supports each individual sub-stream to ensure that the sub-stream can be transmitted preferentially when the network is congested, which can save an average of 39% bit rate compared with MPEG-4; 3) has strong anti-packet loss and anti- Bit error performance, and anti-interference ability.

The system is externally connected with EEPROM, SD card, DDR2 SDRAM and NAND Flash as off-chip memory, and the boot mode is selected as NAND Flash BOOT mode by setting BTSEL[2:0] to 000. The AEMIF interface of DM365 can support NAND Flash and NOR Flash. Because NAND Flash has large storage capacity and low price, NAND Flash is selected in this design. DM365 provides a special DDR2 control interface, 16-bit data lines, 14-bit address lines and 3 block selection signals, which can support 256MByte storage space. The SD card is interconnected with the DSP multimedia processor through the SDIO port, and the EEPROM is interconnected with the DSP multimedia processor through the SPI serial peripheral interface.

2. Let’s introduce the working principle of each module of the monitoring center in detail:

(1) The software of the monitoring station analyzes the obtained comprehensive information, uses H.264 soft decoding technology to decode the video stream in real time for the high-definition video digital signal, and analyzes the data packets for the environmental parameters one by one according to the protocol requirements at the time of transmission. High-definition image information and environmental parameters, accurately analyze the status information of crops or livestock at this time (such as crop pests and diseases, the number of livestock, and disease symptoms), and intuitively determine whether response measures are needed for follow-up processing, which is used for farm breeding The person in charge of the field manages, coordinates and maintains the entire system.

The specific functions of the monitoring station are as follows: 1) Information integration: the monitoring software automatically displays the environmental parameter information obtained by multiple sensors and the video image together, and the rich monitoring information facilitates the monitoring personnel to have a macro grasp of the scene; 2) The video image setting is adjustable: The video image can be adjusted in resolution, brightness, contrast, color, etc., so that when the environment is disturbed and there is a large delay in high-definition video transmission, the image quality can be reduced, the amount of transmitted data can be reduced, and the real-time performance can be improved; 3 ) Statistical drawing function: It can display the parameter changes in the specified period in the form of charts, which is convenient for managers to analyze historical data and find rules: for example, a breeder finds that young pigs grow rapidly and gain weight significantly during a certain period. Then the temperature, humidity and feed matching during this period can be recorded as a relatively successful feeding method and applied to the feeding of the next batch of piglets; 4) Early warning function: automatically generate the layout map of the entire agricultural production site according to the location information obtained by GPS, Each cursor represents a device. If the device is working normally, it will be green. When an alarm or fault occurs, it will turn into a red flashing state, prompting the monitoring personnel. At the same time, the automatic early warning function of the front end of the monitoring will also send an early warning signal on site; 5) Play back the video online , Capture pictures: It can carry out network remote video playback, which is convenient for users to remotely access historical data, and can remotely capture video and pictures, and directly save information such as network evidence; 6) Support screen switching, multi-screen viewing, and multi-screen simultaneous playback, Give users intuitive global control.

(2) The database server compresses and stores the daily monitoring information for use in playback and filing.

(3) The network server, as the link between the monitoring center and the Internet client, publishes the monitoring information to the public website, so that mobile phone users can log in and visit the public website of the monitoring center server anywhere to obtain corresponding information, which is convenient for managers to carry out anytime and anywhere Monitoring, mobile phone and Internet users can use mobile broadband services to access the public website of the monitoring center, even if they are thousands of miles away, they can plan strategies for the breeding base.

3. The following is a specific introduction to the workflow of the remote wireless monitoring and early warning system for agricultural comprehensive information:

In conjunction with Fig. 4, the working method of the remote wireless monitoring and early warning system of agricultural comprehensive information of the utility model includes the following steps:

The first step is to set the warning threshold and select the working mode through the man-machine interface module. If the unmanned automatic warning mode is selected, then enter the next step, and if the normal working mode is selected, then go to the third step;

In the second step, the infrared sensor starts, and the DSP multimedia processor reads the voltage signal of the infrared sensor. When the voltage change of the infrared sensor exceeds the set threshold, an alarm interruption is generated, the program response is interrupted, the alarm bell and the alarm indicator light are turned on, and the The alarm interruption information is packaged and processed in combination with the geographic location information obtained by the Global Positioning System GPS to obtain an early warning data package;

The third step is to monitor the front-end environmental parameter acquisition module and the GPS module of the global positioning system to collect the environmental parameters of the agricultural production site, obtain the digital information of the environmental parameters, and then send the digital information to the DSP multimedia processor through the corresponding digital interface for packaging and processing , to get the environment parameter data package, the environment parameters include:

(1) Geographical location information acquired by the Global Positioning System (GPS);

(2) The temperature and humidity information obtained by the temperature and humidity sensor and the light intensity information obtained by the light sensor;

(3) The video digital information of the agricultural production site collected by the CCD video acquisition module.

In the fourth step, the DSP multimedia processor sends the data packet to the base station through the 3G module, and transfers it to the monitoring center through the base station;

In the fifth step, the gateway of the monitoring center receives the data packet sent by the base station and sends it to each server of the monitoring center, and each server processes the obtained data packet accordingly:

(1) The monitoring platform analyzes the obtained data packets to obtain the environmental parameters and early warning information of the agricultural production site, and then performs management coordination and maintenance processing;

(2) The database server compresses and stores the received data packets for playback and filing;

(3) The network server publishes the environmental parameters and early warning information of the agricultural production site to the public website of the monitoring center server.

The monitoring front end of the remote wireless monitoring and early warning system for agricultural comprehensive information of the utility model adopts an embedded processor and an embedded operating system, and combines the latest H.264 audio and video compression/decompression technology, network technology, and USB communication in the IT field. technology, CAN bus technology, 3G wireless communication (supporting CDMA 2000, WCDMA, TD-SCDMA) technology, WiFi wireless communication technology, smart sensor technology, advanced vehicle power management technology, suitable for 24-hour monitoring of various agricultural production sites, will The monitoring image is transmitted to the monitoring center in real time. Through the integration and sharing of image resources, the real-time, clear and intuitive understanding and mastering of farm animal and plant feeding dynamics can give full play to the system's role in agricultural feeding monitoring, pest control, handling emergencies, and creating ecological technology. The role in agricultural work saves manpower and improves the timeliness of monitoring. Farmers can have a panoramic view of the breeding place information and respond to emergencies in a timely and accurate manner without leaving home. In addition, the product is small and concise in appearance and low in power. Low power consumption, no noise, flexible and convenient installation, stable system operation, greatly improving the efficiency of agricultural production.

Claims (3)

1. an agricultural synthesis information remote wireless monitor and early warning system, it is characterized in that, this system comprises Surveillance center, base station and 1 above front monitoring front-end: wherein each front monitoring front-end comprises environmental parameter acquisition module, global position system GPS module, DSP multimedia processor, human-machine interface module, warning device, 3G module and WiFi module, and Surveillance center comprises control and monitor console, the webserver, database server; Described environmental parameter acquisition module is divided into video acquisition module, Temperature Humidity Sensor and optical sensor three parts, human-machine interface module is divided into LCD touch screen and 4X4 button two parts, and warning device is comprised of 1 above infrared sensor, 1 alarm bell and 1 alarm lamp;

The inside annexation of described each front monitoring front-end is as follows: the CCD camera of video acquisition module is connected with video decoding chip by analog video signal line CVBS, and video decoding chip is connected with the DSP multimedia processor by the high-definition digital signal input line; Temperature Humidity Sensor adopts integrated chip, is connected with the DSP multimedia processor with the I2C interface shape; Optical sensor is connected with the A/D mouth of DSP multimedia processor; The global position system GPS module is connected with the DSP multimedia processor by the RS232 mode; The 4X4 button is connected with keyboard control chip by the IO mouth, and the DSP multimedia processor is connected with the I2C interface shape with keyboard control chip; The input interface of LCD touch screen connects touch screen controller, and touch screen controller and DSP multimedia processor interconnect in SPI serial peripheral mode, and the video output signals mouth of DSP multimedia processor is connected with the LCD touch screen; Alarm bell is connected with the DSP multimedia processor by the IO mouth with warning lamp, and infrared sensor is connected with the A/D input end of DSP multimedia processor through modulate circuit; The 3G module is connected with the DSP multimedia processor by the UART serial port form respectively with the WiFi module;

Described front monitoring front-end is placed in respectively different agricultural production places, and interconnected by the WiFi module between each front monitoring front-end, the 3G module of each front monitoring front-end is interconnected by base station and Surveillance center; Interconnected with the LAN (Local Area Network) form between control and monitor console, the webserver, database server.

2. agricultural synthesis information remote wireless monitor according to claim 1 and early warning system, it is characterized in that: build LAN Information between described front monitoring front-end and share, put front monitoring front-end centered by a front monitoring front-end, other front monitoring front-end is connected with this central point front monitoring front-end and forms star topology.

3. agricultural synthesis information remote wireless monitor according to claim 1 and early warning system, is characterized in that: described DSP multimedia processor employing DM365 chip.

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