CN101303245A - System and method for monitoring greenhouse fine crops growing environment based on wireless sensor network - Google Patents
System and method for monitoring greenhouse fine crops growing environment based on wireless sensor network Download PDFInfo
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- CN101303245A CN101303245A CNA2008100316460A CN200810031646A CN101303245A CN 101303245 A CN101303245 A CN 101303245A CN A2008100316460 A CNA2008100316460 A CN A2008100316460A CN 200810031646 A CN200810031646 A CN 200810031646A CN 101303245 A CN101303245 A CN 101303245A
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Abstract
The invention discloses a growing environment monitoring system for greenhouse plants based on a wireless sensor network, comprising a wireless sensor network, a wireless gateway and a console, wherein the wireless sensor network includes a wireless sensor node and a sink node which are located at a point to be tested, the wireless sensor node accesses the wireless gateway via the sink node, the wireless gateway is in two-way connection with the control platform connected with an information transceiver. Correspondingly, the invention also discloses a growing environment monitoring method for greenhouse plants based on a wireless sensor network. The invention is applicable for real-time overall monitoring on the greenhouse plants, and capable of performing timely countermeasures for the changes of the growing environment of the greenhouse plants.
Description
Technical field
The present invention relates to monitoring greenhouse fine crops growing environment and wireless communication field, particularly a kind of monitoring greenhouse fine crops growing environment system and method based on wireless sensor network.
Background technology
At present some greenhouse is used for carrying out cultivation of ornamental plant and the domestication of some precious wild plants, these plant plantation amounts less and growing environment require harshly, therefore be referred to as meticulous crop.How the growing environment of meticulous crop in the greenhouse being carried out careful real-time monitoring is the huge problem that agriculturist and research of agricultural science person face.Though traditional intelligent greenhouse is equipped with the environment in sensor monitors greenhouse, but owing to reasons such as the density of sensor and sensing range can not be carried out careful environmental monitoring to the specified plant in the greenhouse, traditional greenhouse sensor often can only be monitored the general environment in a greenhouse.Though meticulous crop is placed in the greenhouse, may be because putting position notice that a little local growing environment and greenhouse have no small difference.Therefore the depauperation in the greenhouse of many meticulous crops can appear, even dead situation.
The subject matter that the greenhouse of China exists at present: the one, lack a kind of enough careful monitoring system that covers.The 2nd, the intellectuality of monitoring system and networked degree are not enough.Sensor in the greenhouse monitoring system all is to link to each other with control and monitor console in wired mode at present, and the quantity of sensor and putting position all are changeless, and it is impossible obtaining the local arbitrarily environmental parameter in greenhouse.And the greenhouse needs the professional and at the master control platform data carried out regular supervision, so not only improved human cost, and reliability do not ensure yet.
Summary of the invention
At above-mentioned prior art, the present invention has overcome the problem that greenhouse monitoring system in the past exists: the one, realize the perception of any local environment in greenhouse is covered by the small sensor node of support of wireless communication.The 2nd, the computing power of sensor node itself and wireless communication ability have been realized the intelligent and networked of greenhouse monitoring system, and spread scope that has strengthened greenhouse information and the real-time that has improved information simultaneously combine wireless sensor network with the SMS network.
For achieving the above object, the technical scheme that the present invention takes is: a kind of monitoring greenhouse fine crops growing environment system based on wireless sensor network, comprise wireless sensor network, radio network gateway and control desk, wherein wireless sensor network comprises wireless sensor node and the aggregation node that is positioned at tested point, described wireless sensor node inserts radio network gateway by aggregation node, radio network gateway is connected with control desk is two-way, and control desk is connected with information transceiving device.
As preferred version, what above-mentioned information transceiving device adopted is the note cat.The imote2 node that described aggregation node adopts CROSSBOW company to generate, it comprises arm series processors and CC2420 radio frequency chip.
Accordingly, the present invention also provides a kind of monitoring greenhouse fine crops growing environment method based on wireless sensor network, comprises the steps:
1) by sensor node the environmental parameter at tested point place in the greenhouse is monitored in real time;
2) by sensor node the environmental information that collects is sent to aggregation node, aggregation node is given radio network gateway with the data jump set again;
3) control desk that is connected with radio network gateway reads the data that radio network gateway receives, and with the data storage collected in the database of control desk;
4) control desk constantly scans the environmental data that enters database in nearest one section refresh time, itself and predefined all kinds of parameter threshold value are compared, if surpass threshold value then be judged to be unusually, control desk is controlled connected information transceiving device and is sent alarming short message to information center.
Further, information center can also send the inquiry message of respective nodes to information transceiving device, control desk detects the inquiry message that information transceiving device is received, extracts the data of respective nodes in the database, and it is sent to information center by information transceiving device.
The present invention carries out effective the combination with wireless sensor network with the SMS network, and a whole set of monitoring greenhouse fine crops growing environment system and method thereof is provided.The greenhouse monitor staff is placed on wireless sensor node near the meticulous crop that needs monitoring, and the sequence number correspondence of node corresponding crop.Sensor node is issued convergence node in the greenhouse to Monitoring Data wirelessly.The convergence node earlier compresses processing to the Monitoring Data of all nodes of inside, greenhouse, will compress data after the processing then in the mode of data jump set, and the aggregation node by other greenhouses passes to radio network gateway from far near.The greenhouse management personnel configure the environmental parameter threshold value of each node at the control desk that is connected with radio network gateway.Control desk receives after the data that gateway sends here by serial ports deposit data in database, and whether control desk scan database observation simultaneously has the abnormal data above threshold value, sends alarming short message by the note cat to greenhouse management person if having unusually at once.Greenhouse management person also can be by sending the growing environment information that note is inquired about crop to the note cat.Wherein the method for said system employing comprises: with different levels wireless sensor network topology formation method, control desk identification abnormal data send the method for alarming short message, the method that control desk parsing short message enquiry returns data query etc.
In sum, monitoring greenhouse fine crops growing environment system based on wireless sensor network of the present invention can be used to finish the real-time comprehensive monitoring to meticulous crop in the greenhouse, and the monitoring method that it adopted can be made counter-measure timely to the variation of the growing environment of crop.
Below in conjunction with the drawings and specific embodiments principle of work of the present invention is further described:
In following detailed embodiment, although invention has been described with preferred form with characteristic to a certain degree, but can under the prerequisite that does not deviate from its aim and scope, implement various visibly different embodiment of the present invention, should understand under the situation that does not depart from the claim scope, invention is not limited to specific embodiment.
Description of drawings
Fig. 1 is the structural representation of monitoring system described in the embodiment;
Fig. 2 is the functional flow diagram that aggregation node is realized among the present invention;
Fig. 3 is that control desk identification abnormal data sends the alarming short message method flow diagram among the embodiment;
Fig. 4 is the method flow diagram that control desk is resolved short message enquiry among the embodiment.
Embodiment
As shown in Figure 1, present embodiment medium temperature chamber fine crops growing environmental monitoring system comprises following components: wireless sensor node, and aggregation node, radio network gateway, control desk and note cat constitute.
Total system structure and function are as described below: wireless sensor node is gathered environmental information by the multiple sensors that self connects, gather good environmental information and send to aggregation node after packing, described aggregation node generally has large storage capacity and high arithmetic speed.Aggregation node at first compresses the environmental data of all wireless sensor node collections in the greenhouse in a period of time, adopts the Routing Protocol of minimum hop count to give radio network gateway with the packed data jump set then.Control desk links to each other with radio network gateway by a null modem cable, and reads the data that radio network gateway receives.The environmental data of collecting will be stored in the database of control desk, the watchdog routine of control desk can constantly scan the environmental data that enters database in nearest a minute simultaneously, if have data to surpass the threshold value that the keeper sets then be judged to be unusually, watchdog routine sends alarming short message by the note cat to greenhouse management person at once.When greenhouse management person wishes to understand the growing environment situation of certain crop in the greenhouse, can be by sending note to the note cat, the environmental information that inquiry crop corresponding sensor node is gathered.
As shown in Figure 2, flow chart description the sensor node in aggregation node and greenhouse form the method for network topology by different level.The imote2 node that aggregation node adopts CROSSBOW company to generate, node structure is based on arm series processors and CC2420 radio frequency chip, the processor highest frequency can reach 416MHz, and has the SDRAM of 32M, so this node satisfies the hardware requirement of the present invention to aggregation node.The function of aggregation node realizes based on the TinyOS embedded OS of University of California's Bock upright branch school exploitation.TinyOS adopts event-driven mechanism in order to save the sensor node energy, therefore two tasks (task) on the aggregation node drive by receiving packet incident and clock count respectively, claim these two tasks for handling packet task and the fixed time broadcast routing iinformation task of receiving in the present embodiment.
Wherein handle the packet task that receives:
1. task enters waiting status, waits for the generation that receives the packet incident;
2. when receiving a wireless data packet, the EOP (end of program) waiting status enters executing state;
3. judge whether it is the packet that other aggregation nodes send, if the packet that other aggregation nodes send execution in step 4 so, otherwise enter step 8;
4. the hop count field in the extraction packet;
5. aggregation node checks whether own jumping figure apart from radio network gateway still is empty, if be sky execution in step 6 so, otherwise enters step 7;
6. the hop count field in the packet that extracts is added 1 jumping figure that becomes oneself, enter step 10;
7. the hop count field in the packet that extracts is added and whether see after 1,, otherwise enter step 10 if less than entering step 6 so less than own jumping figure apart from radio network gateway;
8. judge whether it is the packet that the sensor node in the same greenhouse sends,, otherwise enter step 10 if enter step 9;
9. the sensing data field in the extraction packet is compressed, and enters step 10;
10. get back to the waiting status of task.
Wherein fixed time broadcast routing iinformation task comprises:
1. clock counter timing;
2. judge whether a count cycle arrived,, otherwise enter step 1 if enter step 3;
3. reach in the packet and broadcast this packet with the nodal scheme of aggregation node oneself with apart from the jumping figure of radio network gateway;
4. counter empties, and gets back to step 1;
Gateway is sent to the data that receive after the control desk, stores in its database by control desk.As shown in Figure 3, the method for control desk identification abnormal data transmission alarming short message comprises that step is as follows:
1. after starting this program, a timer of program inside also is activated immediately;
2. whether the time in the timer of checking by one minute, if to one minute enter step 3, otherwise enter step 5;
3. whether nearly one minute data of storing in the Query Database have data to surpass threshold values, if there are the data above threshold values to enter step 4, otherwise enter step 5;
4. transmission alarming short message;
5. timer restarts timing.
Figure 4 shows that the method flow diagram of a kind of control desk parsing short message enquiry that present embodiment is taked, this module can adopt Visual C++6.0 and SQLServer to realize.This module will be resolved the Chinese Query note after receiving the Chinese Query note that the note cat sends here, and the result of parsing is a SQL query statement of finishing, and by the SQL query statement database is inquired about obtaining the result then.The concrete steps of resolving short message enquiry are as follows:
1. program module starts, and prepares to receive the Chinese Query note;
2. obtain beginning to resolve scanning behind the short message enquiry from the note cat;
3. judge whether preceding two characters of note are ' inquiry ', if enter step 4, otherwise enter step 8;
4. generate ' inquiry ' corresponding SQL statement, and the 3rd character of scanning note;
5. judge that whether character is numeral, and numeral be one less than 255 positive integer, if enter step 6, otherwise enter step 8;
6. generate corresponding SQL statement, and continue the scanning of back note character;
7. judge whether character is ' maximum ', ' minimum ' or ' on average ', if enter step 9, otherwise enter step 8;
8. enter abnormality, short-message users is sent operation instruction;
9. generate a complete SQL query statement.
Claims (8)
1, based on the monitoring greenhouse fine crops growing environment system of wireless sensor network, it is characterized in that, comprise wireless sensor network, radio network gateway and control desk, wherein wireless sensor network comprises wireless sensor node and the aggregation node that is positioned at tested point, described wireless sensor node inserts radio network gateway by aggregation node, radio network gateway is connected with control desk is two-way, and control desk is connected with information transceiving device.
According to the described monitoring greenhouse fine crops growing environment system of claim 1, it is characterized in that 2, what described information transceiving device adopted is the note cat based on sensor network.
3, according to the described monitoring greenhouse fine crops growing environment system of claim 1, it is characterized in that based on sensor network, the imote2 node that described aggregation node adopts CROSSBOW company to produce, it comprises arm series processors and CC2420 radio frequency chip.
4, based on the monitoring greenhouse fine crops growing environment method of wireless sensor network, it is characterized in that, comprise the steps:
1) by sensor node the environmental parameter at tested point place in the greenhouse is monitored in real time;
2) by sensor node the environmental information that collects is sent to aggregation node, aggregation node is given radio network gateway with the data jump set again;
3) control desk that is connected with radio network gateway reads the data that radio network gateway receives, and with the data storage collected in the database of control desk;
4) control desk constantly scans the environmental data that enters database in nearest one section refresh time, itself and predefined all kinds of parameter threshold value are compared, if surpass threshold value then be judged to be unusually, control desk is controlled connected information transceiving device and is sent alarming short message to information center.
5, according to the described monitoring greenhouse fine crops growing environment method of claim 4 based on wireless sensor network, it is characterized in that, also comprise: information center sends the inquiry message of respective nodes to information transceiving device, control desk detects the inquiry message that information transceiving device is received, extract the data of respective nodes in the database, it is sent to information center by information transceiving device.
According to the described monitoring greenhouse fine crops growing environment method of claim 4, it is characterized in that 6, aggregation node transmits after overcompression is handled environmental information again in the step 2 based on wireless sensor network.
7, according to the described monitoring greenhouse fine crops growing environment method of claim 4, it is characterized in that described environmental parameter comprises temperature, humidity and light intensity based on wireless sensor network.
8, according to the described monitoring greenhouse fine crops growing environment method of claim 4, it is characterized in that described refresh time is one minute based on wireless sensor network.
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| CN101766106A (en) * | 2009-12-31 | 2010-07-07 | 上海量科电子科技有限公司 | Plant-nursing terminal with prompt function, system and system implementation method |
| CN101833323A (en) * | 2010-05-18 | 2010-09-15 | 浙江大学 | Greenhouse dripping and irrigating locale monitoring system based on wireless embedded technology |
| CN101848240A (en) * | 2010-05-05 | 2010-09-29 | 中国农业大学 | System and method for monitoring parameters of watermelon seedling raising environment |
| CN101859120A (en) * | 2010-06-01 | 2010-10-13 | 泉州师范学院 | Remote environment-monitoring system for fruit and vegetable greenhouses and control method thereof |
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