CN204010294U - The lightning proof of wireless sensing equipment in a kind of intelligent irrigation system - Google Patents
The lightning proof of wireless sensing equipment in a kind of intelligent irrigation system Download PDFInfo
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- CN204010294U CN204010294U CN201420480582.3U CN201420480582U CN204010294U CN 204010294 U CN204010294 U CN 204010294U CN 201420480582 U CN201420480582 U CN 201420480582U CN 204010294 U CN204010294 U CN 204010294U
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Abstract
A lightning proof for wireless sensing equipment in intelligent irrigation system, includes Lightning Warning monitoring device, and Lightning Warning monitoring device is by wireless sensor network and routing node wireless connections; Routing node is connected with terminal device node; Other routing node wireless connections in routing node and network; By being built up in small-sized Lightning Warning monitoring device monitoring, the collection atmospheric electric field strength information in field, and the atmospheric electric field strength information gathering is analyzed to judgement, judge the possibility size of the generation of thunder and lightning; In the time that atmospheric electric field intensity exceedes predetermined threshold, Lightning Warning monitoring device sends early warning signal to routing node, and routing node receives after early warning signal, the terminal device node of all activities in notice wireless sensor network; After terminal device node receives signal, enter at once radio listening silence state; Reduce the possibility that irrigation system is attacked by thunder and lightning, ensured the continuity of Monitoring Data.
Description
Technical field
The invention belongs to irrigation system communication technical field, be specifically related to the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system.
Background technology
In recent years, along with wideling popularize of intelligent irrigation technology, increasing intelligent irrigation facility puts into operation in field, and wherein soil moisture content data are monitored and transmitted to most intelligent irrigation systems by the form of wireless sensor network.For the comparatively serious area of some Lightning Disasters, wireless sensing equipment is very easily subject to the attack of thunder and lightning.In wireless sensor network, One's name is legion wireless sensing equipment installs lightning protection additional if, and not only investment is larger, and more difficult maintenance.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of this invention is to provide the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system, can before thunder and lightning arrive, send in advance early warning information and send control command by wireless sensor network, make the whole network wireless device keep radio listening silence, and local cache Monitoring Data, after thunder and lightning all clear, again send, thereby greatly reduce the possibility that suffers thunder and lightning attack and the continuity that has ensured Monitoring Data.
To achieve these goals, the technical solution used in the present invention is: the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system, include Lightning Warning monitoring device 3, Lightning Warning monitoring device 3 is by wireless sensor network and routing node 2 wireless connections; Routing node 2 is connected with terminal device node 1; Other routing node 2 wireless connections in routing node 2 and network.
Described Lightning Warning monitoring device 3, for atmospheric electric field is monitored, adopts the LW110 type Lightning Warning system of Campbell Scientific Inc production.
Described wireless sensor network is the MESH type ZIGBEE wireless sensor network that adopts ZIGBEE protocol stack to communicate.
Described routing node adopts the wireless chip of supporting ZIGBEE agreement.
Described routing node and wireless sensor devices are routing device and the wireless sensor devices that uses ZIGBEE wireless chip to build in ZIGBEE wireless sensor network.
In described wireless chip, be provided with emissive power register.
Advantage of the present invention is:
Because Lightning Warning monitoring equipment is the measurement based on to atmospheric electric field, be not thunderbolt itself, therefore can monitor the potential threat of thunder and lightning, can before arriving, take in advance thunder and lightning protection.This method is to the thunderbolt risk measure of evading of taking the initiative, and as few as possible system changed, and both effectively evaded risk, provides cost savings again.
Brief description of the drawings
Fig. 1 is overall schematic of the present invention.
Fig. 2 is the connecting circuit figure of Lightning Warning system and wireless chip in the present invention.
Fig. 3 is working-flow figure of the present invention.
Fig. 4 is routing node workflow diagram of the present invention.
Fig. 5 is that in the present invention, wireless chip emissive power is adjusted process flow diagram automatically.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Referring to Fig. 1, in a kind of intelligent irrigation system, the lightning proof of wireless sensing equipment, includes Lightning Warning monitoring device 3, and Lightning Warning monitoring device 3 is by wireless sensor network and routing node 2 wireless connections; Routing node 2 is connected with terminal device node 1; Other routing node 2 wireless connections in routing node 2 and network.
Described Lightning Warning monitoring device 3, for atmospheric electric field is monitored, adopts the LW110 type Lightning Warning system of Campbell Scientific Inc production.
Described wireless sensor network is MESH type (netted) the ZIGBEE wireless sensor network that adopts ZIGBEE protocol stack to communicate.
Described routing node adopts the wireless chip of supporting ZIGBEE agreement.
Described routing node and wireless sensor devices are routing node and the wireless sensor devices that uses ZIGBEE wireless chip (as CC2430/2530) to build in ZIGBEE wireless sensor network.
In described wireless chip, be provided with emissive power register.Emissive power register (as: the TXCTRLL.PA_LEVEL register in CC2430 ZIGBEE wireless chip).
Workflow of the present utility model:
1) by being built up in small-sized Lightning Warning monitoring device monitoring, the collection atmospheric electric field strength information in field, and the atmospheric electric field strength information gathering is analyzed to judgement, judge the possibility size of the generation of thunder and lightning;
2) in the time that atmospheric electric field intensity exceedes predetermined threshold, Lightning Warning monitoring device sends early warning signal to the wireless sensor network of routing node composition, routing node in wireless sensor network receives after early warning signal, in wireless sensor network, broadcast immediately, with the terminal device node of all activities in the fastest speed notice wireless sensor network;
3) terminal device node receives after early warning signal by wireless sensor network, forward to all terminal device node and routing nodes of communicating by letter with its foundation, after routing node confirms that all terminal device nodes that communicate with are all received early warning information, routing node proceeds to radio listening silence state, after terminal device node receives signal, enter at once radio listening silence state.
Embodiment
With a thunder and lighting process, the invention will be further described below.
Referring to Fig. 1, Fig. 3 and Fig. 4, when thunder and lightning comes interim, it is abnormal that lightning monitoring prior-warning device 3 monitors atmospheric electric field field intensity value, sends the Lightning Warning information that data frame type is broadcast frame immediately by ZIGBEE wireless sensor network to nearest several routing nodes 2 in network.After near several routing node 2 receives the Frame that contains Lightning Warning signal, each routing node forwards to its all terminal device nodes 1, continue broadcast to other routing nodes 2 simultaneously, after treating that its all terminal device nodes 1 are all received early warning information, routing node 2 proceeds to radio listening silence state immediately, and after terminal device node 1 receives early warning signal, enter at once radio listening silence state.Soil moisture content data buffer memory in wireless chip that during radio listening silence, terminal device node collects.When thunder and lighting process is tending towards finishing, Lightning Warning monitoring device 3 monitors atmospheric electric field field intensity value and recovers normal, issues all clear message by said process, and whole system reactivates.Terminal device node 1 is to routing node 2(parent node separately) soil moisture content that sends local cache in thunder and lighting process detects data.
Referring to Fig. 5, in the process of broadcasting at Frame, there is the routing node 2 of data retransmission function in the time of broadcast early warning information, in order to evade further thunderbolt risk, adopt the broadcast strategy of dynamically adjusting emissive power: before broadcast early warning information, the communication link quality index (LQI) of current all available routes is inspected and recorded to routing node 2 first, in early warning information subsequently in the process of all available routing forwarding, first read the LQI of current route, and (the value size of register TXCTRLL.PA_LEVEL finally can affect the emissive power of wireless communication according to the value of register TXCTRLL.PA_LEVEL in the LQI value adjustment wireless chip of current link, for the higher link of LQI, can suitably reduce emissive power).Above process and so forth, until early warning information is sent through all available routes.
Referring to Fig. 2, between Lightning Warning system and wireless chip CC2530, carry out communication by MAX485 level transferring chip, first early warning system is sent to MAX485 level transferring chip by early warning information by RS-485 data line, is sent to CC2530 wireless chip and early warning information is packaged into Frame to send by wireless sensor network after level conversion.
Claims (6)
1. a lightning proof for wireless sensing equipment in intelligent irrigation system, is characterized in that, includes Lightning Warning monitoring device (3), and Lightning Warning monitoring device (3) is by wireless sensor network and routing node (2) wireless connections; Routing node (2) is connected with terminal device node (1); Other routing nodes (2) wireless connections in routing node (2) and network.
2. the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system according to claim 1, it is characterized in that, described Lightning Warning monitoring device (3), for atmospheric electric field is monitored, adopts the LW110 type Lightning Warning system of Campbell Scientific Inc production.
3. the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system according to claim 1, is characterized in that, described wireless sensor network is the MESH type ZIGBEE wireless sensor network that adopts ZIGBEE protocol stack to communicate.
4. the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system according to claim 1, is characterized in that, described routing node adopts the wireless chip of supporting ZIGBEE agreement.
5. the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system according to claim 1, it is characterized in that, described routing node and wireless sensor devices are routing device and the wireless sensor devices that uses ZIGBEE wireless chip to build in ZIGBEE wireless sensor network.
6. the lightning proof of wireless sensing equipment in a kind of intelligent irrigation system according to claim 4, is characterized in that, is provided with emissive power register in described wireless chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480582.3U CN204010294U (en) | 2014-08-25 | 2014-08-25 | The lightning proof of wireless sensing equipment in a kind of intelligent irrigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480582.3U CN204010294U (en) | 2014-08-25 | 2014-08-25 | The lightning proof of wireless sensing equipment in a kind of intelligent irrigation system |
Publications (1)
| Publication Number | Publication Date |
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| CN204010294U true CN204010294U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420480582.3U Expired - Fee Related CN204010294U (en) | 2014-08-25 | 2014-08-25 | The lightning proof of wireless sensing equipment in a kind of intelligent irrigation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143256A (en) * | 2014-08-25 | 2014-11-12 | 陕西科技大学 | Lightning protection device and method of wireless sensing device in intelligent irrigation system |
| US11026154B2 (en) | 2017-07-27 | 2021-06-01 | Salunda Limited | Beaconed wireless network |
-
2014
- 2014-08-25 CN CN201420480582.3U patent/CN204010294U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143256A (en) * | 2014-08-25 | 2014-11-12 | 陕西科技大学 | Lightning protection device and method of wireless sensing device in intelligent irrigation system |
| US11026154B2 (en) | 2017-07-27 | 2021-06-01 | Salunda Limited | Beaconed wireless network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160825 |