CN101140695A - Greenhouse surroundings monitoring system based on ZigBee wireless sensor network - Google Patents
Greenhouse surroundings monitoring system based on ZigBee wireless sensor network Download PDFInfo
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- CN101140695A CN101140695A CNA200710156210XA CN200710156210A CN101140695A CN 101140695 A CN101140695 A CN 101140695A CN A200710156210X A CNA200710156210X A CN A200710156210XA CN 200710156210 A CN200710156210 A CN 200710156210A CN 101140695 A CN101140695 A CN 101140695A
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Abstract
The invention discloses a monitoring system in greenhouse environment based on ZigBee wireless sensor network, which is separately applied in two hierarchies of a whole greenhouse cluster based on the monitoring network of ZigBee reticular formation and a single greenhouse based on the monitoring network of ZigBee star network.. The system comprises a optional-laying node of wireless sensor (1), a driving node of wireless actuator for driving the actuating mechanism in greenhouse (2), a wireless routing node with the relay function for managing the wireless node in local greenhouse (3), a wireless central controller for environmental data collection to manage all greenhouse (4). The invention is characterized in that the ZigBee wireless sensor network technology is applied in management of modern greenhouse, which builds a wireless monitoring network for greenhouse environment, substituting the traditional wired way to facilitate the management and maintenance of greenhouse.
Description
Technical field
The present invention relates to a kind of greenhouse surroundings monitoring system based on the ZigBee wireless sensor network.
Background technology
Wireless sensor network integrates sensor technology, micro electro mechanical system (MEMS) technology, embedded computing technique, wireless communication technology and distributed information processing, because of its wide application prospect become that height that receive much concern in the world today, multidisciplinary intersects the hot research field.Just wireless sensor technology being incorporated into agricultural production very early abroad comprises in the greenhouse management.The climate parameter of Morais etc. (1996) inside and outside Portugal's utilization wireless data acquisition network is gathered the greenhouse, by several inside and outside climate parameters in Solar Data acquisition station (SPWAS) monitoring greenhouse are installed inside and outside the greenhouse, connect by radio frequency between SPWAS and the base station.(1998,2001) such as Ser dio have been developed one and have been overlapped distributed data acquisition and the control system that is used for greenhouse management, in each greenhouse, use the wireless network of radio frequency 433.92MHz to connect sensor to local controller.Mizunuma etc. (2003) use WLAN monitoring plant growth to monitor in farmland and greenhouse and production system are implemented Long-distance Control.
China starts late to the research of wireless sensor technology, and especially the application in the greenhouse is few on agricultural.Liu Guiguo and should justice refined (2003) report the greenhouse TT﹠C system that adopts Bluetooth technology, system gathers environmental data ice by sensor network and is sent to central control system.Luo Huiqian etc. (2006) have developed a kind of wireless senser, are used to detect environmental parameter in the greenhouse.
This shows that it is a kind of trend that wireless sensor technology is applied to greenhouse management, still, still there is deficiency in above-mentioned several application, are not wireless sensor network truly, can't realize self-organization, perhaps have problems such as cost high energy consumption height.The ZigBee wireless sensor network technology will change this situation.ZigBee is one group of wireless communication protocol based on IEEE802.15.4, and it is a kind of short distance, low-power consumption agreement, therefore is highly suitable for the controlled in wireless instruction transmission of miniaturized electronics.Its typical wire data type has periodic data (as sensor), intermittent data (as illumination control) etc.
At present, the main application fields of ZigBee alliance prediction comprises industrial automation, intelligent building, consumption and family expenses robotization and aspects such as medical equipment control and agricultural automation.Current both at home and abroad the ZigBee Study on Technology application also concentrates on this several aspects, but however, the research and the realization that the ZigBee technology are used for greenhouse surroundings monitoring do not appear in the newspapers as yet.
Summary of the invention
The objective of the invention is to by with the comparison of other wireless technologys, a kind of greenhouse surroundings monitoring system based on the ZigBee wireless sensor network that is more suitable for greenhouse surroundings monitoring is proposed, make up the large greenhouse wireless senser monitor network of a cover low cost, self-organization, low-power consumption, avoid traditional wired mode collection point difficult arrangement, system cost height, shortcoming that the installation and maintenance difficulty is big.
Be divided into two levels in whole greenhouse group and the single greenhouse based on the wireless monitor network in the greenhouse surroundings monitoring system of ZigBee wireless sensor network, based on the star monitoring network of ZigBee star topology and the whole greenhouse group monitoring network based on the ZigBee fully connected topology, the wireless monitor network comprises wireless sensor node, wireless actuator driven node, greenhouse wireless routing node, greenhouse wireless central controller in the single greenhouse.In single greenhouse, the greenhouse wireless routing node is the controller in the local greenhouse, wireless sensor node and wireless actuator driven node are formed star network in greenhouse wireless routing node and the greenhouse, and wireless sensor node and wireless actuator driven node freely add or withdraw from the wireless monitor network; A plurality of greenhouse wireless routing nodes and greenhouse wireless central controller form mesh network, each greenhouse wireless routing node is the routing node in the ZigBee mesh network, when certain single greenhouse when the greenhouse wireless central controller too far exceeds the communication distance of ZigBee, can communicate by letter with the greenhouse wireless central controller by other greenhouse wireless routing nodes step by step, perhaps when interrupting, certain bar networking communicates by letter with the greenhouse wireless central controller by other greenhouse wireless routing nodes automatically, the greenhouse wireless routing node freely adds and withdraws from the wireless monitor network, realizes the self-organization of whole wireless monitor network and recovery certainly.
The internal module annexation of described wireless sensor node is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer, digital sensor respectively, and transformer is connected with antenna.The internal module annexation of wireless actuator driven node is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer, optocoupler respectively, and transformer is connected with antenna, and optocoupler is connected with solid-state relay.The internal module annexation of greenhouse wireless routing node is: the JN5121 microprocessor is connected with LED light with M25P10 storer, LCD, RS232 transceiver, transformer, button respectively, and transformer is connected with antenna.The internal module annexation of greenhouse wireless central controller is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer respectively, and transformer is connected with antenna, and the RS232 transceiver is connected with PC.
The invention has the advantages that: by ZigBee technology MANET, low cost, self-organization, low in power consumption, made up the wireless monitor network that a kind of suitable greenhouse uses, collection point difficult arrangement when having avoided the traditional cable wiring, system cost height, the shortcoming that the installation and maintenance difficulty is big, system configuration is simple, flexible for installation, easy to use.
Description of drawings
Fig. 1 is the greenhouse surroundings monitoring system synoptic diagram based on the ZigBee wireless sensor network
Fig. 2 is a wireless sensor node hardware structure diagram of the present invention
Fig. 3 is a wireless actuator driven node hardware structure diagram of the present invention
Fig. 4 is a greenhouse wireless routing node hardware structure diagram of the present invention
Fig. 5 is a greenhouse wireless central controller system construction drawing of the present invention
Fig. 6 is a greenhouse wireless central controller software flow pattern of the present invention
Fig. 7 is a greenhouse wireless routing node software flow pattern of the present invention
Fig. 8 is a wireless sensor node software flow pattern of the present invention
Fig. 9 is a wireless actuator driven node software process flow diagram of the present invention
Embodiment
As described in Figure 1, be divided into two levels of whole greenhouse group and single greenhouse based on the wireless monitor network in the greenhouse surroundings monitoring system of ZigBee wireless sensor network, in the single greenhouse based on the star monitoring network of ZigBee star topology and whole greenhouse group monitoring network based on the ZigBee fully connected topology, the wireless monitor network comprises wireless sensor node 1, wireless actuator driven node 2, greenhouse wireless routing node 3, greenhouse wireless central controller 4, in single greenhouse, wireless sensor node 1 and wireless actuator driven node 2 are formed star networks in greenhouse wireless routing node 3 and the greenhouse, wireless sensor node 1 and wireless actuator driven node 2 freely add or withdraw from the wireless monitor network, greenhouse wireless routing node 3 is the controller in the local greenhouse, receive the data that wireless sensor node is gathered in the greenhouse and show in real time that on its LCD simultaneously the data process being packed to handle sending to the greenhouse wireless central controller; The user can control the topworks in the local greenhouse on the greenhouse wireless routing node, also can control topworks in certain greenhouse by greenhouse wireless central controller transmitting control commands to greenhouse wireless routing node.A plurality of greenhouse wireless routing nodes and greenhouse wireless central controller 4 form netted (Mesh) network, each greenhouse wireless routing node is the routing node in the ZigBee Mesh network, when certain single greenhouse when greenhouse wireless central controller 4 too far exceeds the communication distance of ZigBee, can communicate by letter with greenhouse wireless central controller 4 by other greenhouse wireless routing nodes step by step, perhaps when interrupting, certain bar networking communicates by letter with greenhouse wireless central controller 4 by other greenhouse wireless routing nodes automatically, greenhouse wireless routing node 3 freely adds and withdraws from the wireless monitor network, realizes the self-organization of whole wireless monitor network and recovery certainly.
As described in Figure 2, the internal module annexation of wireless sensor node 1 is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer, digital sensor respectively, and transformer is connected with antenna.Built-in a 32 risc processor of JN5121 disposes the wireless transceiver of the IEEE802.15.4 standard of 2.4GHz frequency range, can need not external transceiver module and directly is connected with antenna by transformer.Sensor can be selected the digital transducer of low-power consumption, and the environmental parameter value input JN5121 microprocessor with collecting radios to the greenhouse wireless router after treatment.The ZigBee wireless sensor node adopts No. 7 dry cell power supplies of two joint 1.5V alkalescence, through calculating, if the sampling period is that 1 minute then wireless sensor node theoretic serviceable life are about 5 years.
As described in Figure 3, the internal module annexation of wireless actuator driven node 2 is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer, optocoupler respectively, transformer is connected with antenna, and optocoupler is connected with solid-state relay.After JN5121 receives the control command of greenhouse wireless routing node, handle by analysis conducting or the disconnection of control signal, thereby the A.C. contactor of topworks comes the duty of control executing mechanism in the control greenhouse by light-coupled isolation driving solid relay output terminal.Because wireless actuator driven node is installed in topworks's annex usually, can use the AC network at topworks place, so power mode employing powered battery and two kinds of patterns of AC network power supply, select for the user.
As described in Figure 4, the internal module annexation of greenhouse wireless routing node 3 is: the JN5121 microprocessor is connected with LED light with M25P10 storer, LCD, RS232 transceiver, transformer, button respectively, and transformer is connected with antenna.The greenhouse routing node is by runs administrative software, gathers in the greenhouse environmental parameter and is presented on the LCD, and topworks in the greenhouse is carried out this locality control, and the while node possesses the route relay function.Button is used for running node software and manually controls topworks in the greenhouse by wireless actuator driven node, and LED light is used to indicate the running status of topworks.Concrete condition according to the ZigBee protocol application, because routing node need be opened routing function constantly and dispose LCD, compare wireless sensor node energy consumption height, be not suitable for adopting for a long time powered battery, therefore the greenhouse routing node adopts mains supply and powered battery dual mode, and battery powered mode is used for the emergency measure under the power-off condition.
As described in Figure 5, the internal module annexation of greenhouse wireless central controller 4 is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer respectively, and transformer is connected with antenna, and the RS232 transceiver is connected with PC.The greenhouse wireless central controller is set up the PAN network after wireless module powers on, allow the greenhouse wireless routing node to add and form the ZigBee wireless Mesh netword.Center management system software on the PC is used for the management and the control in all node greenhouses, also can realize functions such as the printing of Premium Features such as data, history curve by PC and management software function.Because the wireless module in the greenhouse wireless central controller links to each other with PC, therefore carry out the AC network power supply with PC.
As described in Figure 6, the greenhouse wireless central controller is the initiation person of foundation of wireless monitor network, and its software implementing course is as follows: system begins to set up new network after the software and hardware initialization, each channel is carried out energy scan, selects an idle channel; After finding suitable passage, for thereby new network identifier of network selecting is set up new sensor network, and allow the greenhouse wireless routing node to add, after this enter circulating treatment procedure: receive the wireless routing node data that networked, after data processing, send PC by serial ports; In this circulating treatment procedure, whether the detection serial ports has the control command on the PC, if any the transmission subroutine of then carrying out control command; Whether new scanning wireless routing node add network, if any and be confirmed to be the greenhouse wireless routing node, then allow its adding and distribute 16 the network address.
As described in Figure 7, the greenhouse wireless routing node is managed this greenhouse internal wireless sensor node and wireless actuator driven node, allows them to add and exits network as father node, provides relay function for other greenhouse wireless routing nodes when needed simultaneously.Its software implementing course is as follows: the greenhouse wireless routing node is asked the greenhouse wireless central controller to add network after initialization and is initialized as the ZigBee routing node, routing node can allow terminal device such as wireless sensor node and wireless actuator driven node as child node, and receive the node data that wireless senser is sent, send real-time demonstration, this moment, the LCD interface entered this greenhouse interior nodes network display interface, point out according to the interface corresponding key, can enter each node display interface by " node " key, as shown in the figure, under the wireless sensor node interface, can be used for overload alarm by the upper lower limit value that " setting key " is provided with parameter; Under wireless actuator driven node interface, can be by button manual operation topworkies such as corresponding " opening ", " pass ", " stopping ".In this process, interruption of system scan button and terminal node add the request of network, and the environmental parameter value of all node collections of greenhouse is sent to the greenhouse wireless central controller after data processing.
As described in Figure 8, the implementation procedure of wireless sensor node software flow pattern is as follows: node asks the greenhouse wireless routing node to add after initialization, ask successfully then to obtain 16 network addresss, enter cyclic process afterwards: send the data to this greenhouse wireless routing node through handling after the node read sensor value, change sleep state after being sent completely over to, wait for implementation next time.
As described in Figure 9, the implementation procedure of wireless actuator driven node software process flow diagram is as follows: node at first carries out power-up initializing, request greenhouse wireless routing node added network after initialization was finished, and ask successfully then to obtain 16 network addresss, and is unsuccessful then ask again; Node adds that network is laggard goes into the sleep state, wait receives that steering order is waken up, if the instruction of receiving is correct, the JN5121 microprocessor is carried out corresponding output control, if incorrect then request repeat and time-delay are waited for, in delay time,,, wait for and receive that next time control command is waken up if do not receive that control command then changes sleep state over to if receive that again control command then repeats to judge.
Claims (5)
1. greenhouse surroundings monitoring system based on the ZigBee wireless sensor network, it is characterized in that the wireless monitor network is divided into two levels in whole greenhouse group and the single greenhouse, in the single greenhouse based on the star monitoring network of ZigBee star topology and whole greenhouse group monitoring network based on the ZigBee fully connected topology, the wireless monitor network comprises wireless sensor node (1), wireless actuator driven node (2), greenhouse wireless routing node (3), greenhouse wireless central controller (4), in single greenhouse, wireless sensor node (1) and wireless actuator driven node (2) are formed star network in greenhouse wireless routing node (3) and the greenhouse, greenhouse wireless routing node (3) is the controller in the local greenhouse, wireless sensor node (1) and wireless actuator driven node (2) freely add or withdraw from the wireless monitor network, a plurality of greenhouse wireless routing nodes and greenhouse wireless central controller (4) form mesh network, each greenhouse wireless routing node is the routing node in the ZigBee mesh network, when certain single greenhouse when greenhouse wireless central controller (4) too far exceeds the communication distance of ZigBee, can communicate by letter with greenhouse wireless central controller (4) by other greenhouse wireless routing nodes step by step, perhaps when interrupting, certain bar networking communicates by letter with greenhouse wireless central controller (4) by other greenhouse wireless routing nodes automatically, greenhouse wireless routing node (3) freely adds and withdraws from the wireless monitor network, realizes the self-organization of whole wireless monitor network and recovery certainly.
2. a kind of greenhouse surroundings monitoring system according to claim 1 based on the ZigBee wireless sensor network, the internal module annexation that it is characterized in that described ZigBee wireless sensor node (1) is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer, digital sensor respectively, and transformer is connected with antenna.
3. a kind of greenhouse surroundings monitoring system according to claim 1 based on the ZigBee wireless sensor network, the internal module annexation that it is characterized in that the wireless actuator driven node of described ZigBee (2) is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer, optocoupler respectively, transformer is connected with antenna, and optocoupler is connected with solid-state relay.
4. a kind of greenhouse surroundings monitoring system according to claim 1 based on the ZigBee wireless sensor network, the internal module annexation that it is characterized in that described greenhouse wireless routing node (3) is: the JN5121 microprocessor is connected with LED light with M25P10 storer, LCD, RS232 transceiver, transformer, button respectively, and transformer is connected with antenna.
5. a kind of greenhouse surroundings monitoring system according to claim 1 based on the ZigBee wireless sensor network, the internal module annexation that it is characterized in that described greenhouse wireless central controller (4) is: the JN5121 microprocessor is connected with M25P10 storer, RS232 transceiver, transformer respectively, transformer is connected with antenna, and the RS232 transceiver is connected with PC.
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| CN107318205A (en) * | 2017-08-07 | 2017-11-03 | 广汉阿拉丁科技有限公司 | Closely method for controlling lamp based on ZigBee technology |
| CN111800847A (en) * | 2020-07-03 | 2020-10-20 | 青岛易来智能科技股份有限公司 | Equipment control method and device |
| CN112291732A (en) * | 2020-10-19 | 2021-01-29 | 中国科学院自动化研究所 | Environment monitoring system, method and device based on mixed mode ad hoc network structure |
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