CN101860786A - Method and system for managing domain-based mobile node - Google Patents
Method and system for managing domain-based mobile node Download PDFInfo
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- CN101860786A CN101860786A CN200910081740A CN200910081740A CN101860786A CN 101860786 A CN101860786 A CN 101860786A CN 200910081740 A CN200910081740 A CN 200910081740A CN 200910081740 A CN200910081740 A CN 200910081740A CN 101860786 A CN101860786 A CN 101860786A
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Abstract
The invention discloses a manager, a system and a method for managing a domain-based mobile node. The system comprises a manager, a mobile node and at least three fixed nodes, wherein short-distance wireless communication is carried out between each fixed node and the mobile node, and the fixed nodes are interacted with the manager by network connection. The method comprises the following steps of: dividing a domain in the short-distance wireless communication coverage of the fixed nodes into a plurality of subdomains; receiving the unique identification information of the mobile node in the communication range of the fixed nodes and transferring the unique identification information and the related position information of the mobile node to the manager by the fixed nodes; calculating the position of the mobile node according to the position information by the manager; and setting a motion management rule for the mobile node to enter/exit a subdomain or approach the border of the subdomain in the manager so that when the motion management rule is triggered by the motion of the mobile node, a corresponding command in the motion management rule, such as informing the mobile node and sending an alarm signal, is executed by the manager.
Description
Technical field
The present invention relates to short-distance wireless communication technology, relate to particularly by a plurality of stationary nodes are set and form wireless networks, the method and system that the mobile node in this wireless network is managed by manager.
Background technology
For a long time, colliery operation, ship build and the large area of operational environment complexity such as maintenance in, accident happens occasionally, and operating personnel's life security is caused very big threat.In operation process, often different operating personnels can be responsible for the action in the zones of different, and the working region that has is only open to some specific people, and forbids that other operating personnel enters.Therefore the operating personnel is positioned management, accurately adds up quantity and the service position of the operating personnel different operating zone in, thus safeguard work normally carry out in an orderly manner, and support safety management and disaster relief work just seem particularly important.And at present hereto problem also do not have a kind of effective solution.
In addition, a lot of operational environment danger, perhaps the operational environment quality requirement is very high, need carry out strict fine-grained management, machine manufacturing like flying, steamer manufacturing, the automatic production line workshop, railroad train manufacturing, nuclear power station, blast furnace steel-makings etc. need have been managed the operating personnel, raise the management level, the minimizing accident takes place, improve management automation, the processing reaction speed after the raising accident takes place has historical monitor data.
ZigBee is the radio network technique of a kind of emerging short distance, low-power consumption, low data rate, low cost, low complex degree.It has taked whole advantages of the strong radio physical layer defined of IEEE 802.15.4: power saving, simple, specification that cost is low again, ZigBee has also increased logical network, network security and application layer.The spendable frequency range of ZigBee has 3, be respectively the ISM band of 2.4GHz, the 868MHz frequency range in Europe and the 915MHz frequency range of the U.S., and the spendable channel of different frequency range is respectively 16,1,10, adopts the 2.4G frequency range in China, is the frequency of exempting to apply for and exempt from usage charges.The ZigBee technology mainly is suitable for automation field, can embed in the various device, supports geographic positioning functionality simultaneously.Generally speaking, along with the increase of communication distance, the complexity of equipment, power consumption and system cost are all increasing.With respect to existing various wireless communication technologys, the cost of ZigBee technology and power consumption all are very low.
The major advantage of ZigBee technology has:
(1) power saving: the ZigBee technology can guarantee that two joint No.5 cell supports reach the service time about 6 months to 2 years
(2) reliable: adopted collision-avoidance mechanism, simultaneously for to need the communication service of fixed-bandwidth to reserve dedicated time slot, competition and conflict when having avoided sending data.
(3) cost is low: the part even 1/10th that is like product.
(4) time delay is short: at delay sensitive should be used as optimization, communication delay and the time delay that activates from resting state are all very short.
(5) network capacity is big: can support to reach 65000 nodes
(6) safety: ZigBee provides data integrity inspection and authentication functions, and cryptographic algorithm adopts general AES-128.
Typical ZigBee network configuration as shown in Figure 1.Adopt the ZigBee radio communication between numerous stationary nodes (Reader comprises routing node and access node), constitute network with the self-organizing form.The many mobile nodes (Tag) that also distributing in this ZigBee network also adopt the ZigBee radio communication between mobile node and the stationary nodes.The network that this ZigBee network is set up long distance by the access node and the manager (Controller) of far-end is connected (for example Ethernet).Mobile node and stationary nodes are finished the transmission of data acquisition and multi-hop relay, finish wireless and conversion wire signal by this stationary nodes as access node, and Monitoring Data passes to manager and focuses on the most at last.
In the ZigBee network, also can position mobile node.At first, the calculating stationary nodes communicates with the spacing distance between the interior mobile node of scope, and concrete computing formula is as follows:
In this formula, P
TBe transmit leg power; P
R(d) be received power, and be the function of transmit leg and recipient's spacing distance d; G
TBe the transmit leg antenna gain; G
RBe recipient's antenna gain; D is the spacing distance between transmit leg and the recipient, and unit is a rice; λ is a wavelength, and unit is a rice.For result of calculation is more accurate, also can in formula, introduce and the irrelevant parameters such as the system loss factor of propagation.
According to above-mentioned formula, try to achieve the spacing distance of a certain mobile node to three stationary nodes, can determine the position of mobile node then with trilateration.
Summary of the invention
The objective of the invention is to disclose a kind of manager, system and method for the mobile node management based on the zone, can be applicable to the colliery operation, ship is built and large-scale working region such as maintenance, the mobile node that the operating personnel wore has been managed based on the zone.
An aspect of of the present present invention, a kind of method of the mobile node management based on the zone has been proposed, comprise at least three stationary nodes that can be used for carrying out short-distance wireless communication in the zone with mobile node, and being connected the manager that communicates with stationary nodes, mobile node and manager in each stationary nodes and its range for wireless communication carry out alternately.This method comprises: with the area dividing in the stationary nodes short-distance wireless communication coverage is a plurality of subregions; Stationary nodes receives the unique identification information of the mobile node in its short-distance wireless communication scope; Stationary nodes sends the unique identification information of mobile node and the positional information that is associated with this unique identification information to manager; Manager is provided with mobile node and enters/leave subregion or near the mobile management rule on subregion border; Manager adopts described positional information calculation to obtain the position of this mobile node, and discerns that this mobile node enters/leave subregion or near the subregion border according to the change in location of mobile node; And when this mobile node entered/leave respective sub-areas or close respective sub-areas border, manager was carried out the corresponding command in this mobile management rule.
Preferably, at manager first area table, the scope of posting field and the scope of described each sub regions are set; Manager is provided with the second mobile node table, the unique identification information and the positional information of record mobile node; Be provided with the 3rd at manager and move rule list, write down each mobile node to enter/pairing trigger event and order when leaving all subregion; Manager obtains the unique identification information and the positional information of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table; Manager inquiry first area table judges that the position of this mobile node and all subregion concerns; This mobile node enters/leaves subregion or close subregion border incident takes place when manager is discerned, manager is inquired about the 3rd and is moved rule list, judge that whether this incident moves this mobile node in the rule list and enter/leave subregion or be complementary near the trigger event of the mobile management rule on subregion border with the 3rd, if both are complementary, then manager is carried out the corresponding command of this mobile management rule, for example point out the corresponding mobile node to enter/leave subregion, notify gerentocratic mobile node or send alarm signal, control switch is perhaps controlled video tape recorder and is begun video recording or the like.
Preferably, the position attribution of the mobile node in the second mobile node table comprises position and time corresponding point thereof; Manager is judged the position that obtains the last time point of mobile node in certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion; Manager is judged the position that obtains the last time point of mobile node outside certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And manager judges according to first area table and obtains the mobile node current location in a fixed range on defined certain subregion border, then discerns the border of this mobile node near this subregion.Judge that mobile node is in subregion or outside the subregion, can adopt common algorithm in the prior art, for example " ray method ", promptly draw a ray that passes subregion by the position at mobile node place, judge this ray and zone boundary intersection point number, the intersection point number judges that mobile node in subregion, judges then when the intersection point number is even number that mobile node is outside the zone during for odd number.Again for example, also can cut apart, judge position and each leg-of-mutton position relation of mobile node, judge that thus this mobile node is in subregion or outside the subregion by subregion is made triangle.
Preferably, manager has a map, and the position and the map reference of described stationary nodes are proofreaied and correct correspondence, and the position display of mobile node is on map.Particularly, with the regional lower left corner shown in the map as the origin of coordinates, to set up coordinate system.The user points out the position at all stationary nodes places on this map, make the position of stationary nodes and map reference proofread and correct correspondence.Like this, according to and at least three stationary nodes between the position of mobile node of acquisition that spacing distance calculates, also corresponding the expression with map reference, and with the position display of mobile node on map.The user carries out the division of described zone and subregion according to the map on manager.
Preferably, described stationary nodes is that ZigBee communicates by letter with short-distance wireless communication between the mobile node, form the self-organizing LAN by zigbee between the described stationary nodes, and at least one stationary nodes is set up network with manager by Ethernet and is connected in this self-organizing LAN, perhaps connecting by ZigBee, also can be to connect by other long range wireless communication technologies.
Preferably, described zone and subregion can two-dimensional space, for example factory floors in a plane.Zone and subregion also can be three dimensions, and for example the ship of multilayer is built or maintenance sites.
Preferably, manager counts the number of the mobile node in each sub regions, and/or the number of the mobile node in the zone; And manager compares number and the predefined number of mobile node in each sub regions or the zone, if inequality, then notifies the corresponding mobile node to enter/leave corresponding subregion by stationary nodes.If in the colliery, ship is built and construction site such as maintenance, mobile node in the different subregions (be worn on operating personnel on one's body) is carried out the Commitment, Accounting and Management of Unit Supply on the number, not only can guarantee to arrange the operating personnel of suitable quantity to work in order to each sub regions, and can from the mobile node number, in time find missing or supernumerary person, be beneficial to safety management.
Another aspect of the present invention discloses a kind of system of the mobile node management based on the zone, and comprising: at least one mobile node has related with it unique identification information; At least three stationary nodes are connected by short-distance wireless with mobile node and communicate, and receive the unique identification information of the mobile node in its short-distance wireless communication scope, and the unique identification information and the positional information of mobile node is associated; And manager, be connected by network with stationary nodes and communicate, being used for the area dividing in the stationary nodes short-distance wireless communication coverage is a plurality of subregions; Receive the unique attribute information of mobile node and the positional information that is associated with this unique identification information from each stationary nodes, and adopt described positional information calculation to obtain the position of mobile node; Has the mobile management rule that some mobile nodes entered/left subregion or close subregion border; Discern this mobile node according to the change in location of described mobile node and enter/leave subregion or close subregion border, and when this mobile node enters/leave respective sub-areas or close respective sub-areas border, carry out the corresponding command in this mobile management rule.
Preferably, manager has first area table, the scope of posting field and the scope of described each sub regions; Manager has the second mobile node table, the unique identification information and the position attribution of record mobile node; Manager has the 3rd and moves rule list, writes down each mobile node to enter/pairing trigger event and order when leaving all subregion; Manager obtains the unique identification information and the positional information of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table; Manager inquiry first area table judges that the position of this mobile node and all subregion concerns; This mobile node enters/leaves subregion or close subregion border incident takes place when manager is discerned, manager is inquired about the 3rd and is moved rule list, judge that whether this incident moves this mobile node in the rule list and enter/leave subregion or be complementary near the trigger event of the mobile management rule on subregion border with the 3rd, if both are complementary, then manager is carried out the corresponding command of this mobile management rule, for example point out the corresponding mobile node to enter/leave certain subregion, notify gerentocratic mobile node or send alarm signal.
Preferably, the position attribution of the mobile node in the second mobile node table comprises position and time corresponding point thereof; Manager is judged the position that obtains the last time point of mobile node in certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion; Manager is judged the position that obtains the last time point of mobile node outside certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And manager judges according to first area table and obtains the mobile node current location in a fixed range on defined certain subregion border, then discerns the border of this mobile node near this subregion.Judge that mobile node is in subregion or outside the subregion, can adopt common algorithm in the prior art, for example " ray method ", promptly draw a ray that passes subregion by the position at mobile node place, judge this ray and zone boundary intersection point number, the intersection point number judges that mobile node in subregion, judges then when the intersection point number is even number that mobile node is outside the zone during for odd number.
Preferably, manager has a map, and the position and the map reference of described stationary nodes are proofreaied and correct correspondence, and the position display of mobile node is on map.Particularly, with the regional lower left corner shown in the map as the origin of coordinates, to set up coordinate system.The user points out the position at all stationary nodes places on this map, make the position of stationary nodes and map reference proofread and correct correspondence.Like this, according to and at least three stationary nodes between the position of mobile node of acquisition that positional information is calculated, also corresponding the expression with map reference, and with the position display of mobile node on map.
Preferably, described stationary nodes is that ZigBee communicates by letter with short-distance wireless communication between the mobile node, form the self-organizing LAN by zigbee between the described stationary nodes, and at least one stationary nodes is set up network with manager by Ethernet and is connected in this self-organizing LAN, perhaps connecting by ZigBee, also can be to connect by other long range wireless communication technologies.
Preferably, described zone and subregion can two-dimensional spaces, also can be three dimensions.
Preferably, manager counts the number of the mobile node in each sub regions, and/or the number of the mobile node in the zone; And manager compares number and the predefined number of mobile node in each sub regions or the zone, if inequality, then notifies the corresponding mobile node to enter/leave corresponding subregion by stationary nodes.
Another aspect of the present invention, a kind of manager of the mobile node management based on the zone has been proposed, comprise: communication module, be used for being connected and communicate with stationary nodes, receive the unique attribute information of mobile node and the positional information that is associated with this unique identification information from each stationary nodes; The mobile management rule is used for the mobile management that some mobile nodes entered/left subregion or close subregion border; And control management module, being used for the area dividing in the stationary nodes short-distance wireless communication coverage is a plurality of subregions; From the position that communication module is obtained described positional information and calculated mobile node; Discern this mobile node according to the change in location of described mobile node and enter/leave subregion or close subregion border, and when this mobile node enters/leave respective sub-areas or close respective sub-areas border, carry out the corresponding command in this mobile management rule.
Preferably, manager also comprises a display module, is used to show a map; Control management module is proofreaied and correct correspondence with the position and the map reference of described stationary nodes, shows the position of mobile node on this map.Particularly, control management module with the regional lower left corner shown in the map as the origin of coordinates, to set up coordinate system.The user points out the position at all stationary nodes places on this map, control management module makes the position of stationary nodes and map reference proofread and correct correspondence.Like this, control management module according to and at least three stationary nodes between the position of mobile node of acquisition that positional information is calculated, also corresponding the expression with map reference, and with the position display of mobile node on map.The user carries out the division of described zone and subregion according to the map on display module, correspondingly, and the regional extent that the control management module record is divided and the scope of described each sub regions.
Preferably, described mobile management rule comprises: the first area table is used for the scope of posting field and the scope of described each sub regions; The second mobile node table is used to write down the unique identification information and the position attribution of mobile node; And the 3rd mobile management rule list, write down each mobile node to enter/pairing trigger event and order when leaving all subregion.Control management module is obtained the unique identification information and the positional information of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table; Control management module inquiry first area table judges that the position of this mobile node and all subregion concerns; When control management module is discerned the generation that this mobile node entered/left subregion or close subregion border incident, manager is inquired about the 3rd and is moved rule list, judge that whether this incident moves this mobile node in the rule list and enter/leave subregion or be complementary near the trigger event of the mobile management rule on subregion border with the 3rd, if both are complementary, then control management module is carried out the corresponding command in this mobile management rule.In one embodiment, the pairing order of described this mobile management rule comprises the order of prompting corresponding mobile node and the order of sending alarm signal, and the order of carrying out a control action, for example point out corresponding mobile node to enter/leave subregion, notify gerentocratic mobile node, perhaps send alarm signal by manager.
Preferably, the position attribution of the mobile node in the second mobile node table comprises position and time corresponding point thereof; Control management module is judged the position that obtains the last time point of mobile node in certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion; Control management module is judged the position that obtains the last time point of mobile node outside certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And control management module judges according to first area table and obtains the mobile node current location in a fixed range on defined certain subregion border, then discerns the border of this mobile node near this subregion.Judge that mobile node is in subregion or outside the subregion, can adopt common algorithm in the prior art, for example " ray method ", promptly draw a ray that passes subregion by the position at mobile node place, judge this ray and zone boundary intersection point number, the intersection point number judges that mobile node in subregion, judges then when the intersection point number is even number that mobile node is outside the zone during for odd number.
Preferably, described control management module counts the number of the mobile node in each sub regions, and/or the number of the mobile node in the zone; And described control management module compares number and the predefined number of mobile node in each sub regions or the zone, if inequality, then notifies the corresponding mobile node to enter/leave corresponding subregion by stationary nodes.
Therefore, the present invention is based on the method and system that the management of mobile node is carried out in the zone, is that a plurality of different subregions manage with area dividing, makes complicated construction site management get up more meticulous and safety.At first can monitor the position of mobile node (being the mobile node that the operating personnel wears) in real time, make number and the service position of operating personnel in can the statistical observation different subregions of manager, make things convenient for the manager to organize and coordinate the job placement of each sub regions, guarantee working properlyly to carry out in an orderly manner.Secondly, based on the zone mobile node is carried out mobile management, leave the subregion of its work for mobile node, when entering the subregion that danger or restriction enter, alarm signal be pointed out or be sent to manager can automatically to corresponding operating personnel's mobile node, changed the mode of artificial judgment, the incident that can respond apace, the processing operation personnel deserts one's post or enter the deathtrap.At last, the record operating personnel can in case of emergency provide operating personnel's position timely and accurately, thereby help the carrying out of rescue and relief work in the position of each sub regions.
Description of drawings
By describing flow process of the present invention in detail, will help to understand objects and advantages of the present invention by the preferred embodiment accompanying drawing.Wherein:
Fig. 1 is the ZigBee network structure;
Fig. 2 is according to a preferred embodiment of the invention, provides the schematic diagram based on the system of the mobile node management in zone;
Fig. 3 is the schematic diagram that the manager in the system shown in Figure 2 is divided subregion;
Fig. 4 is according to a preferred embodiment of the invention, provides the structured flowchart of manager shown in Figure 2;
Fig. 5 is according to a preferred embodiment of the invention, provides the schematic diagram of the first area table that manager shown in Figure 4 comprises;
Fig. 6 is according to a preferred embodiment of the invention, provides the schematic diagram of the second mobile node table that manager shown in Figure 4 comprises;
Fig. 7 is according to a preferred embodiment of the invention, provides the schematic diagram of the 3rd location rule table that manager shown in Figure 4 comprises;
Fig. 8 is according to a preferred embodiment of the invention, provides system's realization shown in Figure 2 message flow chart based on the mobile node management in zone;
Fig. 9 is according to a preferred embodiment of the invention, provides the schematic diagram based on the system of the mobile node management in zone that is used for the automatic production line workshop;
Figure 10 is the schematic diagram that the manager of system shown in Figure 9 is divided subregion;
Figure 11 is according to a preferred embodiment of the invention, provides the map schematic diagram based on the mobile node management in zone that manager is used to build or keep in repair ship.
Embodiment
Below with the ZigBee technology as the preferred embodiments of the present invention, describe content of the present invention and realization in detail.But the those skilled in the art should be understood that application of the present invention and is not limited thereto, and communicating by letter between the self-organizing local area network (LAN) between each stationary nodes, stationary nodes and the mobile node also can realize by other short distance wireless technical, for example bluetooth.
Fig. 2 is according to a preferred embodiment of the invention, provides the schematic diagram based on the system of the mobile node management in zone.
As shown in Figure 2, system comprises the self-organizing LAN that a plurality of stationary nodes 201-210 form by the ZigBee technology, the manager 200 that is connected by Ethernet, ZigBee technology or other long range wireless communication technologies with one of them stationary nodes 201, and the mobile node 211-214 that in the self-organizing LAN, communicates by letter by ZigBee with stationary nodes 201-210.What deserves to be mentioned is that the number of stationary nodes and mobile node is not limited in the present embodiment cited, the number of stationary nodes comprises more than three or three, and the number of mobile node can be for individual arbitrarily.Wherein, mobile node 211-214 has related with it unique identification information, for example ZigBee identifier.Mobile node 211-214 generally is worn on one's body the user, for example the operating personnel in the operational environments such as aircraft manufacturing, steamer manufacturing, automatic production line workshop, railroad train manufacturing, nuclear power station, blast furnace steel-making.
Stationary nodes in mobile node 211-214 and its ZigBee communication range communicates by ZigBee.Preferably, mobile node 211-214 sends its unique identification information every the stationary nodes of regular hour in its ZigBee communication range.For example, the stationary nodes 201,202,203 of mobile node 212 in its communication range sends its unique identification information respectively.Stationary nodes 201,202,203 receive the unique identification information of mobile node 212 after, generate respectively and this mobile node between positional information, for example reception/transmitting power of mobile node and stationary nodes, antenna gain, wavelength etc.; Separately the unique identification information of this mobile node 212 is associated with this positional information of generation then, sends to manager 200 respectively.Alternatively, also can inquire about once mobile node in its ZigBee communication range at set intervals, receive the unique identification information of these mobile nodes then and generate the positional information that is associated with this unique identification information by stationary nodes 201-210.
With the area dividing in the stationary nodes 201-210ZigBee radio communication coverage area is a plurality of subregions, and as shown in Figure 3, area dividing is four sub regions, is respectively first subregion, second subregion, the 3rd subregion and the 4th subregion.In the present embodiment, described zone is a plane domain, i.e. two-dimensional space.But the those skilled in the art should be known in described zone and can also be three dimensions.All subregion can exist nested.As shown in accompanying drawing 3, area dividing is four sub regions, is respectively first subregion, second subregion, the 3rd subregion and the 4th subregion, wherein nested the 3rd subregion in second subregion.For example, the 3rd subregion is the comparatively dangerous place of secret or operational environment comparatively in second subregion, do not allow other people to enter, can the 3rd subregion be set in addition in the second subregion inside like this and distinguish management, promptly show as nested the 3rd subregion in second subregion among Fig. 3.In addition, subregion also can be set divide and the time correlation connection, for example in a period of time (as at 8 in mornig shift morning time to point in evenings 8) allow a collection of mobile node (promptly wearing the user of this mobile node) to enter one or many subregions; And in another time period (as at 8 in evening night shift time to the next mornings 8 point) allow another batch mobile node to enter another or a plurality of subregion, two time period area dividing can be independent inequality.
Preferably, manager 200 has a display module and a map.Manager 200 with the regional lower left corner shown in the map as the origin of coordinates, to set up coordinate system.The user points out the position at stationary nodes 201-210 place by the display module of manager 200 on this map, manager 200 makes the position of stationary nodes 201-210 and map reference proofread and correct correspondence.Like this, according to and at least three stationary nodes between the position of mobile node 211-214 of acquisition that spacing distance calculates, also corresponding the expression with map reference, and with the position display of mobile node 211-214 on map.The user carries out the division of described zone and subregion according to the map on manager 200.
Fig. 4 is according to a preferred embodiment of the invention, provides the structured flowchart of manager shown in Figure 2.The present embodiment disclosure will concentrate on the technical elements relevant with the present invention, and can be conventional for necessary other function of the operation of equipment.
Preferably, described mobile management rule 403 comprises: first area table 404 is used for the scope of posting field and the scope of described each sub regions; The second mobile node table 405 is used to write down the unique identification information and the position attribution of mobile node; And the 3rd mobile management rule list 406, write down each mobile node to enter/pairing trigger event and order when leaving all subregion.
Preferably, manager 200 also has a display module 407, shows a map on this display module 407.Control management module 401 with the regional lower left corner shown in this map as the origin of coordinates, to set up coordinate system.The user points out the position at stationary nodes 201-210 place on this map by display module 407, control management module 401 is proofreaied and correct correspondence with position and the map reference of the stationary nodes 201-210 that the user points out, again will according to and at least three stationary nodes between the position of mobile node 211-214 of acquisition that spacing distance calculates, also corresponding the expression with map reference, form the above-mentioned second mobile node table 405, and with the position display of mobile node 211-214 on map.The user carries out the division of described zone and subregion according to the map of display module 107, and the scope in the zone of control management module 401 these divisions of record and the scope of each sub regions form above-mentioned first area table 404.Simultaneously, the user is provided with the mobile management rule that each mobile node entered/left subregion or close subregion border on manager 200, and control management module 401 these mobile management rules of record form above-mentioned the 3rd mobile management rule list 406.
First area table 404 comprises zone/subregion coverage as shown in Figure 5, can comprise further that also each zone allows the mobile node unique identification that enters.In the present embodiment, the zone of setting control management module 401 divisions is four sub regions shown in Figure 3: first subregion, second subregion, the 3rd subregion and the 4th subregion.Preferably, the coverage of in the table 404 of first area, representing zone and this four sub regions respectively, and (the first area table 404 in the present embodiment is simply represented the unique identification information of mobile node with letter character A-D to set the unique identification information of the mobile node allow to enter this zone and four sub regions respectively, but the present invention is not limited thereto, this unique identification information can be the identifier of the short-distance wireless module of each mobile node, 64 bit address of ZigBee for example, perhaps be to the significant name of application layer, or help distinguishing other unique identification information of different mobile nodes) the ZigBee map addresses.Give an example as Fig. 5, the mobile node that allows to enter the zone comprises that unique identification information is the mobile node of A-D, if the unique identification information that a stationary nodes reads the mobile node that enters the zone is set at area entry, and send to manager 200, whether then the control management module 401 of manager 200 can be discerned mobile node according to the unique identification information that zone in this first area table 404 allows to enter mobile node the authority that enters the zone: if do not allow to enter the unique identification information of the mobile node in zone, can send alarm signal, effectively stop other people illegally entering.
The second mobile node table 405 comprises unique identification information, position attribution as shown in Figure 6, also can further comprise the user profile of mobile node, for example user's name, age, position etc.Listing the unique identification information that allows to enter the zone in the first mobile node table respectively is unique identification information, position attribution and the user profile of the mobile node of A-D.Preferably, the position attribution of the mobile node in the second mobile node table 405 comprises position and time corresponding point thereof; Control management module 401 is judged the position that obtains the last time point of mobile node in certain sub regions according to first area table 404, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion; Control management module 401 is judged the position that obtains the last time point of mobile node outside certain sub regions according to first area table 404, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And control management module 401 judges according to first area table 404 and obtains the mobile node current location in a fixed range on defined certain subregion border, then discerns the border of this mobile node near this subregion.In the second mobile node table 405, can write down each mobile node position attribution such as (for example 2 hours, 8 hours or 24 hours) in a period of time, so that follow the trail of the moving range of mobile node in this time period.
The 3rd moves rule list 406 as shown in Figure 7, comprises unique expression information, trigger event and the order of mobile node.Discern mobile nodes when the control management module 401 of manager 200 and carry out the 3rd trigger event that moves in the rule list 406, control management module 401 is carried out the 3rd and is moved control commands corresponding in the rule list 406.With the unique identification information be A mobile node for example, when it leaves the first subregion Event triggered, the control management module 401 of manager 200 is carried out following control command: the prompting unique identification information is that the mobile node of A has left first subregion, is unique identification information that the information that the mobile node of A leaves first subregion notifies first subregion gerentocratic mobile node; When unique identification information is that the mobile node of A is when entering the second subregion Event triggered, the control management module 401 of manager 200 is carried out following control command: the prompting unique identification information is that the mobile node of A has entered second subregion, is unique identification information that the mobile node of A enters the information of leaving second subregion and notifies second subregion gerentocratic mobile node; When unique identification information is that the mobile node of A is when entering the 3rd subregion Event triggered, the control management module 401 of manager 200 is carried out following control command: the prompting unique identification information is that the mobile node of A has entered deathtrap the 3rd subregion, manager 200 sends alarm signal, controls the warning device of the 3rd subregion and reports to the police.
Particularly, control management module 401 is obtained the unique identification information and the position attribution of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table 405; Control management module 401 inquiry first area tables 404 judge that the position of this mobile node and all subregion concerns, judge promptly whether this mobile node leaves certain subregion, enter certain subregion or close certain subregion border; Enter/leave the generation of subregion or close subregion border incident when control management module 401 these mobile nodes of identification, rule list 406 is moved in manager 200 inquiries the 3rd, judge that whether this incident moves this mobile node in the rule list 406 and enter/leave subregion or be complementary near the trigger event of the mobile management rule 403 on subregion border with the 3rd, if both are complementary, then control management module 401 is carried out the corresponding command in these mobile management rules 403.
Fig. 8 is according to a preferred embodiment of the invention, provides system's realization shown in Figure 2 message flow chart based on the mobile node management in zone.In this system, at least three stationary nodes form the self-organizing local area network (LAN), carry out short-distance wireless communication with mobile node, and one of them stationary nodes are connected communication with manager.Message flow chart is represented for convenience, and a plurality of stationary nodes are only unified in Fig. 8 to be called stationary nodes, and does not divide into each stationary nodes.
Stationary nodes 201-210 receives the unique identification information S801 of the mobile node 211-214 in its short-distance wireless communication scope, and generates the positional information S802 that is associated with this unique identification information; Stationary nodes sends the unique identification information of mobile node and the positional information S803 that is associated with this unique identification information to manager 200.
When manager 200 identification mobile nodes enter/leave respective sub-areas or close respective sub-areas border, the corresponding command S807 that manager 200 is carried out in these mobile management rules.Particularly, enter/leave the generation of subregion or close subregion border incident when manager 200 these mobile nodes of identification, rule list 406 is moved in manager 200 inquiries the 3rd, judge that whether this incident moves this mobile node in the rule list 406 and enter/leave subregion or be complementary near the trigger event of the mobile management rule 403 on subregion border with the 3rd, if both are complementary, then manager 200 is carried out the corresponding command in these mobile management rules 403.For example manager 200 will point out the order of this mobile node to send to corresponding stationary nodes S808, point out this mobile node S809 by stationary nodes again.
Fig. 9 is according to a preferred embodiment of the invention, provides the schematic diagram based on the system of the mobile node management in zone that is used for the automatic production line workshop.
The automatic production line workshop, extremely important for the management that the operating personnel is meticulous and orderly, because any one operating personnel delays or lack a link, all might cause the stagnation of subsequent job.
As shown in Figure 9, the system based on the mobile node management in zone that is used for the automatic production line workshop comprises a manager 900, a plurality of stationary nodes 901-912 and a plurality of a plurality of mobile nodes of being worn by the operating personnel.Wherein pass through the self-organizing LAN that the ZigBee technology is formed between the stationary nodes 902-912, one of them stationary nodes 202 communicates by the stationary nodes 901 of ZigBee technology and connection manager 200, and the stationary nodes 902-912 of self-organizing LAN communicates by the mobile node in ZigBee technology and this network.
The subregion that this automatic production line workshop in 900 pairs of stationary nodes communication ranges that 902-912 covers of manager is divided as shown in figure 10.Wherein the operating personnel of first subregion produces a kind of product or part; Second subregion is the deathtrap, does not allow the operating personnel close; The operating personnel of the 3rd subregion produces another kind of product or part.Because the operating personnel of first subregion and the operating personnel of second subregion are different work posts, generally do not allow mutual transposing, the working region that perhaps enters the other side disturbs other people to work.Manager 900 shows zone shown in Figure 5 and subregion and stationary nodes by display module.
The unique identification information of the mobile node when manager 900 receives scope separately from stationary nodes 902-912 by stationary nodes 901 in and with positional information that this unique identification information is associated after, calculate the position of each mobile node respectively.Manager 900 judges which subregion each mobile node belongs to respectively, and by display module these mobile nodes is showed (as shown in figure 10) in the position of respective sub-areas.Simultaneously, the number of the mobile node in manager 900 statistical regions and first subregion, second subregion and the 3rd subregion, this statistics also can show by showing it.Manager 900 obtains the unique identification information and the positional information of mobile node in real time from stationary nodes 902-912, when calculating the change in location of corresponding mobile node, then manager 900 rejudges the subregion at this mobile node place, and on display module along with the position of update displayed mobile node, upgrade the statistics of mobile node in each zone simultaneously.Thus, the statistics that manager 900 can enter, leave specific to the mobile node of each subregion is convenient to fine-grained management.
Preferably, on manager 900, pre-set the number of the required mobile node of all subregion workload (being the operating personnel), promptly be set in sometime in the section, only allow how many operating personnels to enter in this zone or the subregion.When manager 900 counted mobile node number in all subregion, manager 900 compared this statistics and the number that sets in advance.If both are inequality, then on the display module of manager 900, point out, perhaps manager 900 is prompted to gerentocratic mobile node.Like this, be convenient to the number that the manager in time coordinates operating personnel in all subregion,, guarantee progress better to reach the reasonable distribution of workload.
Preferably, has the mobile management rule that the management mobile node entered/left subregion or close subregion border at manager 900.Manager 900 is discerned mobile node according to the change in location of mobile node and is entered/leave subregion or close subregion border, and when corresponding mobile node enters/leave respective sub-areas or close respective sub-areas border, the corresponding command that manager 900 is carried out in these mobile management rules.When the mobile node that for example is limited to work in first subregion left first subregion, 900 pairs of these mobile nodes of manager send prompting, and it returned the instruction of first subregion; When this mobile node entered deathtrap second subregion, manager 900 can be taked more tangible prompting mode, for example gave the alarm, and perhaps directly in time warned by the voice of broadcasting.
Figure 11 is according to a preferred embodiment of the invention, provides being used to of showing on the manager to build or keep in repair the map based on the mobile node management in zone of ship.In the present embodiment, omitted the mobile node management system architecture diagram that is used to build or keep in repair ship, but the those skilled in the art should be understood that system comprises manager, mobile node and stationary nodes based on the zone.
For large-scale ship, the environment of building or keeping in repair is very complicated.Therefore, the working region of building or keeping in repair ship can be divided into the management that a plurality of subregions become more meticulous.Described working region can be the three dimensions of ship, also can be only at the two-dimensional space on a certain aspect (for example on the deck).Each layer at ship all is provided with stationary nodes, to form ZigBee self-organizing local area network (LAN).
Map as shown in figure 11, ship is divided into three layers, be respectively from the bottom up: lower hold (being divided into first subregion), deck and ground floor cabin (being divided into second subregion and the 3rd subregion respectively), second layer cabin (being divided into the 4th subregion).
Manager ship lower left corner O point shown in Figure 11 is set to the origin of coordinates of map, to set up a three-dimensional system of coordinate.The user points out the position at each stationary nodes place on this map, manager makes the position of stationary nodes and map reference proofread and correct correspondence, forms the three-dimensional coordinate of each stationary nodes in this map, comprises plane coordinates and height coordinate.The unique identification information of the mobile node of each stationary nodes in manager sends its ZigBee communication range and the positional information that is associated with this unique identification information.The positional information that manager is associated according to the unique identification information of mobile node, calculate the spacing distance that obtains this mobile node and at least four stationary nodes (wherein any three stationary nodes are not on same straight line) respectively, and then calculate the three-dimensional coordinate of mobile node, with the position display of mobile node on map.Manager can be judged the subregion at mobile node place according to the position of mobile node, and judges its movement locus by the position of mobile node in a period of time.
Management appliance is useful on the mobile management rule that the management mobile node entered/left subregion or close subregion border.Preferably, a stationary nodes is set in the ship porch, read the unique identification information of the mobile node of going on board, judge according to the mobile management rule whether the unique identification information of this mobile node allows to enter the zone at ship place, and the unrelated person that is prohibited from entering ship with prevention is gone on board.Simultaneously, the number (promptly wearing the operating personnel's of mobile node number) of the mobile node that this stationary nodes is gone ashore on also can adding up in a period of time automatically, and the operating personnel's that goes ashore situations such as name can be provided according to the unique identification information of each mobile node, carry out work management better to make things convenient for the manager.
Manager monitors that mobile node enters/leave subregion or during near the trigger event in the mobile management rule on subregion border, carries out corresponding fill order in this mobile management rule.For example, in manager that mobile node is close, as to leave the place, the deck second subregion border (being ship side) is as a trigger event in the mobile management rule, and manager sent alarm signal as the corresponding fill order of this trigger event in the mobile management rule, then when the operation personnel fall into nautical mile near gun wale or cross the ship's side, after the three-dimensional position of the mobile node that manager is worn according to this operating personnel monitors this trigger event, can in time send alarm signal, help guaranteeing operating personnel's personal safety.Simultaneously, manager can be stored the position in one time period of this mobile node, the sea if the operating personnel crosses the ship's side because of carelessness, the position that then can on map, show mobile node in this time period, form the movement locus of this mobile node in this time period thus, be convenient to the rescue worker and accurately locate the search and rescue scope.
Though the present invention illustrates and describes with reference to its preferred embodiment, but will be understood by those skilled in the art that, under the situation of the spirit and scope of the present invention that do not break away from the appended claims and limited, can carry out the various changes of form and details.
Claims (22)
1. method based on the mobile node management in zone, comprise at least three stationary nodes that can be used for carrying out short-distance wireless communication in the zone with mobile node, and the manager that is connected communication with stationary nodes, mobile node and manager in each stationary nodes and its range for wireless communication carry out it is characterized in that comprising alternately:
With the area dividing in the stationary nodes short-distance wireless communication coverage is a plurality of subregions;
Stationary nodes receives the unique identification information of the mobile node in its short-distance wireless communication scope;
Stationary nodes sends the unique identification information of mobile node and the positional information that is associated with this unique identification information to manager;
Manager is provided with mobile node and enters/leave subregion or near the mobile management rule on subregion border;
Manager adopts described positional information calculation to obtain the position of this mobile node, and discerns that this mobile node enters/leave subregion or near the subregion border according to the change in location of mobile node; And
When this mobile node entered/leave respective sub-areas or close respective sub-areas border, manager was carried out the corresponding command in this mobile management rule.
2. method according to claim 1 is characterized in that:
Manager has first area table, the scope of posting field and the scope of described each sub regions;
Manager has the second mobile node table, the unique identification information and the position attribution of record mobile node;
Manager has the 3rd mobile management rule list, writes down each mobile node to enter/pairing trigger event and order when leaving all subregion;
Manager obtains the unique identification information and the position attribution of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table;
Manager inquiry first area table judges that the position of this mobile node and all subregion concerns;
This mobile node enters/leaves subregion or close subregion border incident takes place when manager is discerned, manager is inquired about the 3rd and is moved rule list, judge that whether this incident moves this mobile node in the rule list and enter/leave subregion or be complementary near the trigger event of the mobile management rule on subregion border with the 3rd, if both are complementary, then manager is carried out the corresponding command of this mobile management rule.
3. method according to claim 2 is characterized in that:
The position attribution of the mobile node in the second mobile node table comprises position and time corresponding point thereof;
Manager is judged the position that obtains the last time point of mobile node in certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion;
Manager is judged the position that obtains the last time point of mobile node outside certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And
Manager obtains the mobile node current location in a fixed range on defined certain subregion border according to first area table judgement, then discerns the border of this mobile node near this subregion.
4. according to one of them described method of claim 1-3, it is characterized in that:
Manager has a map, and the position and the map reference of described stationary nodes are proofreaied and correct correspondence, and the position display of mobile node is on map.
5. according to one of them described method of claim 1-3, it is characterized in that:
Described subregion is two dimension or three-dimensional zone.
6. according to one of them described method of claim 1-3, it is characterized in that:
Described stationary nodes is that ZigBee communicates by letter with short-distance wireless communication between the mobile node, form the self-organizing LAN by ZigBee between the described stationary nodes, and at least one stationary nodes and manager connect by Ethernet or ZigBee technology in this self-organizing LAN.
7. according to one of them described method of claim 1-3, it is characterized in that:
The pairing order of described this mobile management rule comprises the order of prompting corresponding mobile node, sends the order of alarm signal, and the order of carrying out a control action.
8. according to one of them described method of claim 1-3, it is characterized in that further comprising:
Manager counts the number of the mobile node in each sub regions, and/or the number of the mobile node in the zone; And
Manager compares the number and the predefined number of the mobile node in each sub regions or the zone, if inequality, then enters/leave corresponding subregion by stationary nodes notice corresponding mobile node.
9. system based on the mobile node management in zone comprises:
At least one mobile node has related with it unique identification information;
At least three stationary nodes are connected by short-distance wireless with mobile node and communicate, and be used for the unique identification information of the mobile node in its short-distance wireless communication scope, and the unique identification information and the positional information of mobile node is associated; And
Manager is connected communication with stationary nodes, and being used for the area dividing in the stationary nodes short-distance wireless communication coverage is a plurality of subregions; Receive the unique attribute information of mobile node and the positional information that is associated with this unique identification information from each stationary nodes, and adopt described positional information calculation to obtain the position of mobile node; Be provided with mobile node and enter/leave subregion or near the mobile management rule on subregion border; Discern this mobile node according to the change in location of described mobile node and enter/leave certain subregion or close subregion border, and when this mobile node enters/leave respective sub-areas or close respective sub-areas border, carry out the corresponding command in this mobile management rule.
10. system according to claim 9 is characterized in that:
Manager has first area table, the scope of posting field and the scope of described each sub regions;
Manager has the second mobile node table, the unique identification information and the position attribution of record mobile node;
Manager has the 3rd mobile management rule list, writes down that each mobile node enters/leave subregion or pairing trigger event and order when the subregion border;
Manager obtains the unique identification information and the positional information of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table;
Manager inquiry first area table judges that the position of this mobile node and all subregion concerns;
When manager is discerned the generation that this mobile node entered/left subregion or close subregion border incident, manager is inquired about the 3rd and is moved rule list, judge that whether this incident moves this mobile node in the rule list and enter/leave subregion or be complementary near the trigger event of the mobile management rule on subregion border with the 3rd, if both are complementary, then manager is carried out the corresponding command in this mobile management rule.
11. system according to claim 10 is characterized in that:
The position attribution of the mobile node in the second mobile node table comprises position and time corresponding point thereof;
Manager is judged the position that obtains the last time point of mobile node in certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion;
Manager is judged the position that obtains the last time point of mobile node outside certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And
Manager obtains the mobile node current location in a fixed range on defined certain subregion border according to first area table judgement, then discerns the border of this mobile node near this subregion.
12., it is characterized in that according to one of them described system of claim 9-11:
Described stationary nodes is that ZigBee communicates by letter with short-distance wireless communication between the mobile node, form the self-organizing LAN by ZigBee between the described stationary nodes, and at least one stationary nodes and manager connect by Ethernet or ZigBee technology in this self-organizing LAN.
13., it is characterized in that according to one of them described system of claim 9-11:
Manager has a map, and the position and the map reference of described stationary nodes are proofreaied and correct correspondence, and the position display of mobile node is on map.
14., it is characterized in that according to one of them described system of claim 9-11:
Described subregion is two-dimensional space or three-dimensional zone.
15., it is characterized in that according to one of them described system of claim 9-11:
The pairing order of described this mobile management rule comprises the order of prompting corresponding mobile node and the order of sending alarm signal, and the order of carrying out a control action.
16., it is characterized in that according to one of them described system of claim 9-11:
Manager counts the number of the mobile node in each sub regions, and/or the number of the mobile node in the zone; And
Manager compares the number and the predefined number of the mobile node in each sub regions or the zone, if inequality, then enters/leave corresponding subregion by stationary nodes notice corresponding mobile node.
17. the manager based on the mobile node management in zone comprises:
Communication module is used for being connected with stationary nodes and communicates, and receives the unique identification information of mobile node and the positional information that is associated with this unique identification information from each stationary nodes;
The mobile management rule is used for the mobile management that some mobile nodes entered/left subregion or close subregion border; And
Control management module, being used for the area dividing in the stationary nodes short-distance wireless communication coverage is a plurality of subregions; From the position that communication module is obtained described positional information and calculated mobile node; Discern this mobile node according to the change in location of described mobile node and enter/leave subregion or close subregion border, and when this mobile node enters/leave respective sub-areas or close respective sub-areas border, carry out the corresponding command in this mobile management rule.
18. manager according to claim 17 is characterized in that:
Described mobile management rule comprises the first area table, is used for the scope of posting field and the scope of described each sub regions; The second mobile node table is used to write down the unique identification information and the position attribution of mobile node; And the 3rd mobile management rule list, write down that each mobile node enters/leave subregion or pairing trigger event and order during near the subregion border;
Control management module is obtained the unique identification information and the position attribution of mobile node in real time from stationary nodes, when calculating the change in location of corresponding mobile node, upgrades the position attribution of corresponding mobile node in the second mobile node table;
Control management module inquiry first area table judges that the position of this mobile node and all subregion concerns;
When control management module is discerned the generation that this mobile node entered/left subregion or close subregion border incident, manager is inquired about the 3rd and is moved rule list, judge that whether this incident moves this mobile node in the rule list and enter/leave subregion or be complementary near the trigger event of the mobile management rule on subregion border with the 3rd, if both are complementary, then control management module is carried out the corresponding command in this mobile management rule.
19. manager according to claim 18 is characterized in that:
The position attribution of the mobile node in the second mobile node table comprises position and time corresponding point thereof;
Control management module is judged the position that obtains the last time point of mobile node in certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and left this subregion outside this subregion;
Control management module is judged the position that obtains the last time point of mobile node outside certain sub regions according to the first area table, and the position of current point in time is then discerned this mobile node and entered this subregion in this subregion; And
Control management module obtains the mobile node current location in a fixed range on defined certain subregion border according to first area table judgement, then discerns the border of this mobile node near this subregion.
20., it is characterized in that according to one of them described manager of claim 17-19:
Manager also comprises a display module, is used to show a map; Control management module is proofreaied and correct correspondence with the position and the map reference of described stationary nodes, shows the position of mobile node on this map.
21., it is characterized in that according to one of them described manager of claim 17-19:
The pairing order of described this mobile management rule comprises the order of prompting corresponding mobile node, sends the order of alarm signal, and the order of carrying out a control action.
22., it is characterized in that according to one of them described manager of claim 17-19:
Described control management module counts the number of the mobile node in each sub regions, and/or the number of the mobile node in the zone; And
Described control management module compares the number and the predefined number of the mobile node in each sub regions or the zone, if inequality, then enters/leave corresponding subregion by stationary nodes notice corresponding mobile node.
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