CN102646324A - Wireless remote stored-grain temperature monitoring system - Google Patents
Wireless remote stored-grain temperature monitoring system Download PDFInfo
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- CN102646324A CN102646324A CN201110040316XA CN201110040316A CN102646324A CN 102646324 A CN102646324 A CN 102646324A CN 201110040316X A CN201110040316X A CN 201110040316XA CN 201110040316 A CN201110040316 A CN 201110040316A CN 102646324 A CN102646324 A CN 102646324A
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Abstract
The invention relates to the field of temperature monitoring based on wireless sensor network technology, and discloses a wireless remote stored-grain temperature monitoring system with low energy consumption, easy maintenance, and multi-path acquisition. The invention is realized through the following scheme: the system comprises a wireless terminal system, a wireless network router, a wireless network base station, and a temperature monitoring server; the data acquisition wireless terminal is provided with a 15-path analog signal switch inside, and a temperature sensor transmits temperature data to the analog signal switch through a connecting wire; the data acquisition wireless terminal, the wireless network router and the wireless network base station perform bidirectional digital communication through a connector and a wireless radio frequency module. The invention solves the problem of wired network dependency of traditional stored-grain temperature monitoring systems, substitutes single-path temperature measurement with multi-path temperature acquisition, not only reduces communication cost and personnel labor intensity, but also improves timeliness and accuracy of temperature monitoring.
Description
Technical field
The present invention relates to the temperature monitoring field, especially relate to a kind of wireless remote stored grain temperature monitoring system based on wireless sensor network technology.
Background technology
Foodstuff preservation is the important step in the grain circulation field, and in the management process of foodstuff preservation, most important is exactly monitoring to cereal temperature.After-ripening, the moisture of grain is too high, insect, microorganism and impurity is too high all can cause the grain temperature rise; Under the situation that guarantees the stored grain quality; Insect and microorganism are the principal elements that causes the grain temperature rise; Paying close attention to the variation of grain temperature, find the grain temperature rise early, is the important process of carrying out the foodstuff preservation management.The fundamental purpose of stored grain temperature monitoring is to find that the early stage of local grain temperature raises fast, is putting prevention first, and the reduction grain probability that goes mouldy reduces the loss behind the grain harvest to greatest extent.
Traditional stored grain temperature monitoring mainly adopts following two kinds of technology:
1. Fieldbus Control mode.At the position mounting temperature probe that needs detect, read the data of each temp probe through the fieldbus connection monitoring system.The major defect of this mode is the on-the-spot necessary cable of laying, and concentrate the scene of grain storage very inconvenient for on-fixed, and the damage of bus is difficult to repair and replacement; In addition, because the distance of fieldbus transmission is limited, so can't realize remote monitoring.
2. in holding temperature monitor.In the position that needs detect the single lever-type temperature is installed and visits point; The testing staff detects and writes down the temperature of each point through hand-held temperature monitor, and the shortcoming of this mode is to need to drop into very big manpower, mistake often occurs and copies; The situation of skip; And this mode does not possess any characteristic of information-based monitoring, can not realize data storage and analysis, more can not realize remote monitoring.
Summary of the invention
The objective of the invention is provides the wireless remote stored grain temperature monitoring system of a kind of low energy consumption, easy installation, multiplex temperature collection for overcoming the deficiency of above technology for the stored grain temperature monitoring.
Wireless remote stored grain temperature monitoring system of the present invention is achieved through following technical proposals, and said system comprises radio terminal system, wireless network router, wireless network base station and temperature monitoring server; Built-in 15 tunnel simulating signal switches in said data collection radio terminal; Said data collection radio terminal, wireless network router and wireless network base station adopt built-in connector and wireless communication module to carry out bi-directional digital communication.
The wireless network router is set between radio terminal system according to the invention and the wireless network base station, and 2 or 2 above wireless network routers can form wireless sensor network.Wireless sensor network support tree type involved in the present invention, the star-like and netted three kinds of network topology structures of Mesh.Network communication protocol guarantees network automatic network-building under unmanned situation of intervening, operation automatically, and under the situation that problems such as node failure occur, system can adjust automatically, realizes unmanned.The time division multiplex transmission mechanism of sleeping/waking is adopted in network service; Effectively reduce the power consumption of wireless communication module; Significantly reduced the data collision probability between the wireless device, changed the dependence of prior art, and had the effect of highly significant in energy-saving and cost-reducing side to cable network.
Radio terminal system according to the invention, by multichannel MF53-1 type NTC temperature sensor, connecting line and data collection radio terminal constitute jointly.Built-in 15 tunnel simulating signal switches in data collection radio terminal, every way switch can connect a temperature sensor through a connecting line.When radio terminal system carries out temperature acquisition, the switching of each switch of data collection radio terminal control, temperature sensor sends the simulating signal of temperature data to the data collection radio terminal through data line.The data collection radio terminal sends to the wireless network router through wireless transmitter module with digital signal after simulating signal is carried out analog to digital conversion.The multiway analog switch technology is adopted in the data wireless collection; Substituted the single lever-type temperature acquisition form that traditional thermometry adopted; Realized the concurrent working of many temperature sensors; The existing temperature measuring equipment of the compatible foodstuff preservation unit of the sensor of being selected for use is convenient to on-the-spot Installation and Debugging, has significantly reduced cost of products.
Data collection radio according to the invention terminal, wireless network router and wireless network base station are main control equipment, and an all peculiar dismountable wireless radio frequency modules is carried out bi-directional digital communication through connector between main control equipment and less radio-frequency.The separate type design proposal of this main control equipment and wireless radio frequency modules; Only needing to change under the situation of radio-frequency module; Just can make system works in 2.4GHz, 905MHz, 433Mhz or other high-frequency band, make things convenient for product to implement and use, make system have excellent dirigibility and operability.
The invention has the beneficial effects as follows: a kind of wireless remote stored grain temperature monitoring system based on wireless sensor network technology is provided; Wireless sensor network technology is combined with the conventional temperature monitoring technology; Apply to the temperature monitoring of stored grain; In the real-time collection that has realized the multi way temperature data, reduced power consumption and implemented difficulty.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is the structural principle block diagram at data collection radio of the present invention terminal.
Fig. 3 is the structural principle block diagram of wireless network router of the present invention.
Fig. 4 is the structural principle block diagram of wireless network base station of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to further describe.
As shown in Figure 1; The present invention sends temperature data through connecting line to the data collection radio terminal for temperature sensor; The wireless sensor network system that the data collection radio terminal utilizes the wireless network router to form; Send the data of gathering to wireless network base station; Wireless network base station utilizes the Intcrnct/GPRS network to send the data on the network of assigned ip address, and temperature monitoring server (present embodiment adopts the computing machine that DX-SEWMS 1.0 temperature monitoring softwares have been installed) connects network and receives data, wherein between data collection radio terminal and the wireless network router; And be the wireless two-way digital communication between wireless network router and the wireless network base station, communications band is 2.4GHz/433MHz.
As shown in Figure 2, Fig. 2 is the structural principle block diagram at data collection radio terminal.Among the figure; MF53-1 type thermistor (1) is connected with multiway analog switch (2) through connecting line; Miniature process chip MSP430F5438 (6) carries out temperature data acquisition through switching multi-channel analog; The temperature data that collects is stored in after analog to digital conversion in the E2PROM data-carrier store (2), and sends through the 433MHz radio-frequency module (5) that is connected with connector (7); MAX809 reset circuit (4) is used to control the startup according to gathering wireless terminal; Battery (8) is responsible for to each parts electric energy being provided with power management module (9).
As shown in Figure 3, Fig. 3 is the structural principle block diagram of wireless network router.Among the figure; 433MHz radio-frequency module (1) is connected with connector (4); The wireless network digital signal that receives is transferred to miniature process chip MSP430F5438 (5) through spi bus, and miniature process chip is stored in temperature data in the E2PROM data-carrier store (2); MAX809 reset circuit (3) is used to control the startup according to gathering wireless terminal; Power supply (7) is responsible for to each parts electric energy being provided.
As shown in Figure 4, Fig. 4 is the structural principle block diagram of wireless network base station.In wireless sensor network system; Wireless network base station is the major equipment that wireless network data converges and calculates; In order to strengthen its calculated performance, in the present embodiment, adopt AT91SAM9263 (5) embedded-type ARM core board as kernel processor chip; And designed abundant peripheral digital interface; Wherein, Ethernet interface (3) sends to temperature data on the network of assigned ip address with GPRS communication module (1) through the Internet/GPRS network, and 433MHz radio-frequency module (8) is responsible for carrying out the wireless two-way digital communication with other wireless sensor network equipments; According to the difference of data storage priority, wireless network base station provides one group of physical storage medium, comprises SDRAM (10), NAND Flash (11), NOR Flash (12) and SD card (9); Moreover, system also provides RS232 (2) interface and the LCD display (7) that is used for I/O.
Embodiment recited above describes the preferred embodiment for the present invention; Be not that design of the present invention and scope are limited; Under the prerequisite that does not break away from design philosophy of the present invention; The various changes and modifications that engineering technical personnel make technical scheme of the present invention in this area all belong to protection scope of the present invention.
Claims (6)
1. a wireless remote stored grain temperature monitoring system is characterized in that said system comprises radio terminal system, wireless network router, wireless network base station and temperature monitoring server; Said radio terminal system connects the data acquisition wireless terminal for the multi way temperature sensor through connecting line; Built-in 15 tunnel simulating signal switches in said data collection radio terminal, temperature sensor transmits temperature data through connecting line to the simulating signal switch; Said data collection radio terminal, wireless network router and wireless network base station adopt built-in connector and wireless radio frequency modules to carry out bi-directional digital communication.
2. wireless remote stored grain temperature monitoring system according to claim 1; It is characterized in that; The wireless network router is set between said radio terminal system and the wireless network base station, and 2 or 2 above wireless network routers can form wireless sensor network.
3. wireless remote stored grain temperature monitoring system according to claim 1 is characterized in that, built-in 15 tunnel simulating signal switches in said data collection radio terminal.
4. wireless remote stored grain temperature monitoring system according to claim 1 is characterized in that said data collection radio terminal has wireless radio frequency modules, and wireless radio frequency modules is carried out bi-directional digital communication through connector and radio terminal system.
5. wireless remote stored grain temperature monitoring system according to claim 1 is characterized in that said wireless network router has wireless radio frequency modules, and wireless radio frequency modules is carried out bi-directional digital communication through connector and wireless network router.
6. wireless remote stored grain temperature monitoring system according to claim 1 is characterized in that said wireless network base station has wireless radio frequency modules, and wireless radio frequency modules is carried out bi-directional digital communication through connector and wireless network base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040316XA CN102646324A (en) | 2011-02-18 | 2011-02-18 | Wireless remote stored-grain temperature monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110040316XA CN102646324A (en) | 2011-02-18 | 2011-02-18 | Wireless remote stored-grain temperature monitoring system |
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| CN102646324A true CN102646324A (en) | 2012-08-22 |
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| CN201110040316XA Pending CN102646324A (en) | 2011-02-18 | 2011-02-18 | Wireless remote stored-grain temperature monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280064A (en) * | 2013-07-12 | 2015-01-14 | 魏燕 | Configuration type multi-parameter wireless physicochemical index monitor |
| CN104282126A (en) * | 2013-07-12 | 2015-01-14 | 高圣鑫 | Multi-parameter greenhouse environment monitoring system adopting multiple network communication technology |
| CN104464240A (en) * | 2014-12-02 | 2015-03-25 | 大连合力信软件有限公司 | High-efficiency energy-saving data transmission receiving system |
| CN105608862A (en) * | 2015-11-03 | 2016-05-25 | 镇江苏仪德科技有限公司 | Remote temperature and humidity cloud detection system based on Wi-Fi and wireless radio frequency communication |
-
2011
- 2011-02-18 CN CN201110040316XA patent/CN102646324A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280064A (en) * | 2013-07-12 | 2015-01-14 | 魏燕 | Configuration type multi-parameter wireless physicochemical index monitor |
| CN104282126A (en) * | 2013-07-12 | 2015-01-14 | 高圣鑫 | Multi-parameter greenhouse environment monitoring system adopting multiple network communication technology |
| CN104464240A (en) * | 2014-12-02 | 2015-03-25 | 大连合力信软件有限公司 | High-efficiency energy-saving data transmission receiving system |
| CN105608862A (en) * | 2015-11-03 | 2016-05-25 | 镇江苏仪德科技有限公司 | Remote temperature and humidity cloud detection system based on Wi-Fi and wireless radio frequency communication |
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Application publication date: 20120822 |