CN203261480U - Information interaction system based on Ad Hoc network under emergency condition - Google Patents
Information interaction system based on Ad Hoc network under emergency condition Download PDFInfo
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- CN203261480U CN203261480U CN 201320249269 CN201320249269U CN203261480U CN 203261480 U CN203261480 U CN 203261480U CN 201320249269 CN201320249269 CN 201320249269 CN 201320249269 U CN201320249269 U CN 201320249269U CN 203261480 U CN203261480 U CN 203261480U
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Abstract
The utility model relates to an information interaction system based on an Ad Hoc network under emergency conditions; the system comprises mobile nodes for real-time positioning and voice communication, a position-fixed relay node for increasing network connecting probability, a node with wired and wireless interfaces, and a monitoring center computer. Data communication of the clients under the emergency conditions are carried out by employing the Ad Hoc network, thereby realizing the real-time positioning and voice communication functions of the clients. The beneficial effects are that the problems of unable to send or receive messages in some dead corners in a scenic spot are prevented; system expenses can be effectively controlled; and the client can better understand the present geographical location, thereby improving escaping probability under emergency conditions.
Description
Technical field
The utility model relates to a kind of location of portable terminal and the system of information interaction, and particularly a kind of Ad Hoc network that adopts is at the information interaction system between the client under the emergent scene.
Background technology
Ad Hoc network is a kind of wireless network of self-organizing, need not infrastructure (such 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 the 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 purpose of this utility model is when generation natural calamity situation causes the out of order emergent scene of communications facility, in order to make the client can immediately realize in real time location and function of voice communication, 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 utility model purpose 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; For increasing the fixing via node 2 in the position of network connection probability; 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 it is on-the-spot that described microsensor is installed on monitoring.
Further, described microsensor comprises Smoke Sensor, temperature sensor, vibrating sensor, gas sensor and optical sensor.
As a kind of preferred version of the present utility model, select the location aided rebroadcast Routing Protocol LAR of Ad Hoc network, can under emergent scene, realize the at any time real-time navigation capability of calling system of client, and carry out interactive communication with peripheral client or control and monitor console, thereby obtain more peripheral information, increase the escape probability.
The utility model 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, effectively control system expense;
3, the client can understand more to the current geographic position information of oneself, thereby is increased in the escape probability under the emergent scene.
Description of drawings
Fig. 1 is Ad Hoc network plane structural representation of the present utility model.
Fig. 2 is request district, the expectation district and inferior place of safety schematic diagram of E-LAR agreement of the present utility model.
Fig. 3 is node reciprocal process of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model 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 oneself setting up.Therefore, certain effect has been played in the selection of networking mode.Everyone is exactly a mobile node 1 among Fig. 1, is used in real time location and voice communication; 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 it is on-the-spot that described microsensor is installed on monitoring.
Further, the microsensor that the utility model adopts comprises Smoke Sensor, temperature sensor, vibrating sensor, gas sensor and optical sensor, comparative maturity all on these sensor technology markets, such 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 refer to take node S constantly centered by the position of the node D that knows of T1 recently, R is as the border circular areas (such as the border circular areas among the 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 (such as the interior large square zone among the figure).Portable 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 (such as the large rectangular region among the figure) in comparatively safe zone, and ask the zone that intersect district and inferior place of safety to be place of safety (such as the small rectangle zone that hands over mutually among the figure), mobile node in the place of safety can carry out better message and transmit, 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 then abandons routing request packet.If source node S wants to set up one to the route of destination node D, computation requests district at first 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 the routing request packet.According to the definite inferior place of safety at that time of the data of microsensor, thereby determine the place of safety.When a node is received routing request packet, if it in this safety zone, it will forward this request (such as node A), otherwise abandon this bag (such 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 till the destination node (comprising control and monitor console), thereby realize between the client or the information interaction between client and the control and monitor console.
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 real-time mobile node (1) of location and voice communication; For increasing the fixing via node (2) in the position of network connection probability; 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 it is on-the-spot that described microsensor is installed on monitoring.
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 201320249269 CN203261480U (en) | 2013-01-30 | 2013-05-10 | Information interaction system based on Ad Hoc network under emergency condition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320048537.6 | 2013-01-30 | ||
| CN201320048537 | 2013-01-30 | ||
| CN 201320249269 CN203261480U (en) | 2013-01-30 | 2013-05-10 | Information interaction system based on Ad Hoc network under emergency condition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10489737B2 (en) | 2015-12-21 | 2019-11-26 | Genetec Inc. | Method and system for viral identification of evacuees |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10489737B2 (en) | 2015-12-21 | 2019-11-26 | Genetec Inc. | Method and system for viral identification of evacuees |
| US11042826B2 (en) | 2015-12-21 | 2021-06-22 | Genetec Inc. | Method and system for viral identification of evacuees |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20160510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |