CN103118329A - Information Interaction system based on Ad Hoc network emergency scene - Google Patents
Information Interaction system based on Ad Hoc network emergency scene Download PDFInfo
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- CN103118329A CN103118329A CN 201310033661 CN201310033661A CN103118329A CN 103118329 A CN103118329 A CN 103118329A CN 201310033661 CN201310033661 CN 201310033661 CN 201310033661 A CN201310033661 A CN 201310033661A CN 103118329 A CN103118329 A CN 103118329A
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Abstract
The invention relates to an information interaction system based on Ad Hoc network emergency scene. The information Interaction system comprises a mobile node, a relay node, a node and a monitor center computer. The mobile node is used for real-time positioning and speech communication. The relay node which is fixed is used for increasing chances of network connection. The node is provided with wire and wireless interfaces. By means of communicating customers' data in the emergency scene by the Ad Hoc network, real-time customer positioning and speech communication functions are realized. The information interaction system has the advantages that the problem that messages fail to be transmitted and received in certain dead spots in a scenic region, control system expense can be lowered effectively, customers are allowed to know their current locations better, and accordingly chances of escaping from the emergency scene are increased.
Description
Technical field
The present invention relates to a kind of location of mobile terminal and the system of information interaction, particularly a kind of Ad Hoc network that adopts is at the information interaction system between the client under emergent scene.
Background technology
Ad Hoc network is a kind of wireless network of self-organizing, need not infrastructure (as the base station etc.) or fixed access point, and it can utilize Routing Protocol that the node with wireless communication ability is formed complete self-organizing, multi-hop and an acentric network automatically.In radio transmission range, the node that has wireless communication ability in Ad Hoc network can direct communication, can be by communicating in other node between the node of transmission range and exceed.Therefore, each node had both served as main frame and had also served as router, and this has just overcome WIFI etc. in the limited shortcoming of the area communication that is subject to Effect of Natural Disaster.
Therefore, we utilize Ad Hoc network, set up a system that can make between client and client under emergent scene or carry out information interaction between client and control desk, make the client can understand better own current positional information and the route information that can escape.
Summary of the invention
The object of the invention is to when generation natural calamity situation causes the out of order emergent scene of communications facility, in order to make the client can immediately realize location and function of voice communication in real time, can recognize exactly the escape information of surrounding environment, increase the escape probability, thereby propose a kind of based on the information interaction system under the emergent scene of Ad Hoc network.
The technical solution that realizes the object of the invention is:
A kind of based on the information interaction system under the emergent scene of Ad Hoc network, it comprises: the mobile node 1 that is used for real-time location and voice communication; The fixing via node 2 in position that connects probability for increasing network; Have wired and node 3 and Surveillance center's computer 4 wave point; Described mobile node 1, via node 2 and described node 3 with wired and wave point carry out wireless connections; Described node 3 carries out wired connection with Surveillance center's computer 4.
Wherein, described mobile node 1 comprises the microsensor for the perception surrounding environment, and described microsensor is installed on monitoring site.
Further, described microsensor comprises Smoke Sensor, temperature sensor, vibrating sensor, gas sensor and optical sensor.
As a preferred embodiment of the present invention, select the location aided rebroadcast Routing Protocol LAR of Ad Hoc network, can realize client's real-time navigation capability of calling system at any time under emergent scene, and carry out interactive communication with peripheral client or control and monitor console, thereby obtain more peripheral information, increase the escape probability.
The present invention compared with prior art, its remarkable advantage is:
1, Ad Hoc network has the characteristics of self-organizing, can avoid some area, dead angle can't send and the problem of accepting message;
2, use Routing Protocol---the E-LAR that optimizes, control system expense effectively;
3, the client can understand more to the current geographic position information of oneself, thereby is increased in the escape probability under emergent scene.
Description of drawings
Fig. 1 is Ad Hoc network plane structural representation of the present invention.
Fig. 2 is request district, expectation district and the inferior place of safety schematic diagram of E-LAR agreement of the present invention.
Fig. 3 is node reciprocal process of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail.
In conjunction with Fig. 1, because the mobile node of Ad Hoc network can carry out networking automatically, reflection client's information, as: positional information, voice messaging etc., can transmit in the network of own establishment.Therefore, certain effect has been played in the selection of networking mode.In Fig. 1, everyone is exactly a mobile node 1, is used for location and voice communication in real time; The black square represents the via node 2 that the position is fixing, for increasing the connection probability of network; The black concentric circles represents to have wired and node 3 wave point, and dotted line represents Radio Link, and solid line represents wire link.What adopt is planar structure herein, wherein the via node 2 of mobile node 1 and fixed position has routing capabilities, the function of Surveillance center's computer 4 is identical with the positioning function of each mobile node 1, and can give positional information that each mobile node 1 sends the client and voice messaging etc.
Wherein, described mobile node 1 comprises the microsensor for the perception surrounding environment, and described microsensor is installed on monitoring site.
Further, the microsensor that the present invention adopts comprises Smoke Sensor, temperature sensor, vibrating sensor, gas sensor and optical sensor, comparative maturity all on these sensor technologies market, as Smoke Sensor, to a certain degree begin to report to the police when the concentration of smog is increased to, and cigarette sense output data are issued the transducer mobile node that is attached thereto.
In conjunction with Fig. 2, the Routing Protocol of Ad Hoc network---location aided rebroadcast route LAR(Location-aided Routing Protocol).Defined two zones in LAR: one is called expectation district (Expected Zone), and another is request district (Request Zone).Here, we are optimized the LAR agreement, make it be more applicable for emergent scene, are defined as the E-LAR agreement here.The E-LAR agreement has defined an inferior place of safety (Subsafe Zone) and place of safety (Safe Zone) on original basis.
So-called expectation district refers to take node S constantly centered by the position of the node D that knows of T1 recently, R is the border circular areas (as the border circular areas in figure) of radius, it be node S to node D may the place the estimation of position.Wherein R was determined by time difference of the average speed V of node D and current time and T1.The request district refers to that the position with node S comprises the minimum square region of source node and desired regions, is generally (Sx, Sy) and is end points, the square region take (Dx+R, Dy+R) as the diagonal angle end points (as the interior large square zone in figure).mobile terminal each client increases a microsensor, context under can the perception case of emergency, and can carry out an assessment to environment, produce an inferior place of safety (as the large rectangular region in figure) in comparatively safe zone, and ask the zone that intersect district and inferior place of safety to be place of safety (as the small rectangle zone that hands over mutually in figure), mobile node in the place of safety can carry out better message and forward, and the mobile node in the place of safety can redefine the request district of oneself, and find oneself place of safety, thereby make message can arrive smoothly destination node.
Only the node in this zone just forwards route requests, and this extra-regional node abandons routing request packet.If source node S wants to set up one to the route of destination node D, at first the computation requests district, suppose that node S knows the position (Dx, Dy) of node D at moment T1, and in the T2 moment, node S sends a route requests, expects that at this moment zone radius R is:
R=V（T2-T1）
Then node S computation requests zone, for take (Sx, Sy) and (Dx+R, Dy+R) as the square region to angular vertex, node S is included in four apex coordinates in this zone in routing request packet.At that time inferior place of safety definite according to the data of microsensor, thus determine the place of safety.When a node is received routing request packet, if it in this safety zone, it will forward this request (as node A), otherwise abandon this bag (as Node B).After node D received route requests, it responded a route replies bag (Route Reply Message) that comprises current location and temporal information.
When can not find route in the place of safety time, this agreement adopts the inundation mode to re-start route discovery.
In conjunction with Fig. 3, start node wants to know current positional information under emergent scene, perhaps want to exchange with other clients, therefore positional information or the voice messaging with oneself arrives intermediate node through Ad Hoc network, intermediate node finds next intermediate node through Ad Hoc network again, until finally find destination node (comprising control and monitor console) till, thereby realize between the client or client and control and monitor console between information interaction.
Claims (3)
1. one kind based on the information interaction system under the emergent scene of Ad Hoc network, it is characterized in that: comprise for the mobile node (1) of location and voice communication in real time; The fixing via node (2) in position that connects probability for increasing network; Have wired and node (3) and Surveillance center's computer (4) wave point; Described mobile node (1), via node (2) and describedly have wired and node (3) wave point carries out wireless connections; Described node (3) carries out wired connection with Surveillance center's computer (4).
2. according to claim 1 based on the information interaction system under the emergent scene of Ad Hoc network, it is characterized in that: described mobile node (1) comprises the microsensor for the perception surrounding environment, and described microsensor is installed on monitoring site.
3. according to claim 1 and 2 based on the information interaction system under the emergent scene of Ad Hoc network, it is characterized in that: described microsensor comprises Smoke Sensor, temperature sensor, vibrating sensor, gas sensor and optical sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201310033661 CN103118329A (en) | 2013-01-30 | 2013-01-30 | Information Interaction system based on Ad Hoc network emergency scene |
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| CN 201310033661 CN103118329A (en) | 2013-01-30 | 2013-01-30 | Information Interaction system based on Ad Hoc network emergency scene |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702772A (en) * | 2013-12-09 | 2015-06-10 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105554765A (en) * | 2015-11-30 | 2016-05-04 | 中国电子科技集团公司第二十八研究所 | Urban emergency wideband communication system on the basis of temporary communication resource |
| CN110470696A (en) * | 2019-08-21 | 2019-11-19 | 科航（苏州）信息科技有限公司 | Probe node and in-situ measurement network |
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2013
- 2013-01-30 CN CN 201310033661 patent/CN103118329A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702772A (en) * | 2013-12-09 | 2015-06-10 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105554765A (en) * | 2015-11-30 | 2016-05-04 | 中国电子科技集团公司第二十八研究所 | Urban emergency wideband communication system on the basis of temporary communication resource |
| CN105554765B (en) * | 2015-11-30 | 2018-12-28 | 中国电子科技集团公司第二十八研究所 | A kind of city emergency wide-band communication system based on the provisional communication resource |
| CN110470696A (en) * | 2019-08-21 | 2019-11-19 | 科航（苏州）信息科技有限公司 | Probe node and in-situ measurement network |
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Application publication date: 20130522 |