CN100529793C - Method and system for active object search navigation - Google Patents

Abstract

The invention refers to a method and system to search the object by use of area object net. The system includes a search position indicator, able to determine the position of object source by detecting a radio wave from the object source. The search position indicator is input with the object code of destination, receives many signals from object sources and selects the signal of appointed object, calculates the direction and distance of the appointed object, approaches the appointed object and adjusts the position in time, and finally find the appointed object. An object transmitting tower can lead users to find the destination covered by object transmitting tower by information transmission and screening with the search position indicator, and the net developed by many object transmitting towers can lead users to find all the objects covered by the net.

Description

The method and system of active target search navigation

Technical field

The invention belongs to radio frequency and field of wireless communications systems, the air navigation aid and the system that more specifically say so and utilize radio frequency and wireless communication technology to help the user in short distance, to search active target.

Background technology

Radio frequency and wireless communication technology have become important and indivisible some in our modern life.From early stage walkie-talkie and intercom, radio-frequency technique has obtained the development of advancing by leaps and bounds aspect many in wireless telephone, mobile phone, beeper, Global Positioning System (GPS) etc.The invention in all these fields and use the life be impregnated into our every day helps us to keep the information transmission of mutual contact.

Yet although the fast development of modern radio-frequency technology, we also do not have very quantum jump at least on the one hand at daily life, that be exactly we can't find still that eyesight around ours can't be melted and object.When our walking or drive to seek a tame restaurant or an office building, unless we remember their address or see their mark, otherwise will spend very great strength to go to inquire the position of searching them.

Even we can know the address of the destination that will go in advance, rely on map or the route asked about in advance finds close street, we must carefully check street name and number, this is quite inconvenience to the driver.

Even the instrument that utilizes stellar-based global-positioning system to navigate now has been applied in some daily lifes, they are to remote guidance, as very suitable from the Zhong Guan-cun to the Forbidden City.Yet what really need most is the number that how to find you to need in closely complicated street landform.Because buildings is to the shielding of satellite-signal,, still need with the naked eye to go to seek street name, trade name or number even on the street, also be difficult to determine the accurate distance of your destination.

Secondly, stellar-based global-positioning system depends on the GPS Global Positioning System (GPS) of U.S.'s emission, and this system does not make any promise, can stop this satnav free service in case of necessity.And the map that must buy expensive gps receiver and the place of arrival is installed in advance could navigate.

Another kind of positioning system is the cellular base station location, wherein is divided into two kinds substantially: location, single base station and base station triangle location.Location, single base station is owing to only determine target by a base station, and its degree of accuracy is the radius of base station, is generally 100 to 300 meters positioning errors.Base station distribution low density regional error in suburb can reach several kilometers.And base station triangle positioning system need be upgraded base station equipment, invests greatly, is difficult to reach the price point of profit and be difficult to promote.

Technology related to the present invention is the location technology of U.S. Patent number 5055851 by the vehicle that warning device is housed of " Track mobile " Sheffer of company invention.Another patent No. by the Sood invention of Sharp Microelectronics technology company is 5,293,645 the relevant technology of utilizing location, the several base station cell phone in the cell phone network.Further by AT﹠amp; The relevant of the Grimex invention of T transmitted information so that determine the technology of the position of 911 emergency dialing by mobile phone terminal.China Patent No. 98801407.6 is used for determining that by this announcement of S.E. Lay of Northern Digital Inc. a kind of the system of the locus of target, this system have sends the active target of energy in response to active signal and be applicable to that reflection is mapped to the passive target of the energy on the passive target from the energy source that can activate.The common detector of the energy that is used to detect energy that active target sends and passive target reflection is provided.But it is to utilize the infraluminescence diode different fully with purpose scheme of the present invention by computing acquisition image as sensor as oriented energy source Charge Coupled Device (CCD).

Summary of the invention

The present invention is a method and system that seek to determine target in short distance, and both a cover user seeks the target that closely and with the naked eye can't see around it, as restaurant, the hotel method or the system of allocation really.It is not high that this system can overcome the base station bearing accuracy, and Global Positioning System (GPS) is subject to the influence of object screen-wall, difficult anti-accident, the high deficiency of expense.

This method mainly utilizes a search orientator to seek at least more than one target source orientation in the scope of determining, wherein each target source is installed in and represents at least more than one fixed target on the object, wherein definite at least one above-mentioned fixed target of signal representative of each target source emission.This method comprises: for distributing at least one object code in each fixed target source, to represent at least one object, for the usefulness of each fixed target source emitting radio wave.Import the target location that on behalf of the user, at least one object code seek to said search orientator, use said search orientator to receive at least one wireless signal that is sent in numerous target sources; Use said object code and said search orientator to check at least one wireless signal; If said wireless signal meets said object code, said search orientator can be determined the orientation of at least one target source.This method also comprises said fixed target source according to the different frequency transmission information of preassigned employing, activation signal of said search orientator emission, and in a single day said fixed target source receives activation signal, promptly launches prearranged signal.Signal that has numerous codes of said fixed target source transmission, each code is represented a predetermined object.Said search orientator is equipped with map software, and the relative geographic position of said search orientator of demonstration and target also receives the numerous signals from a plurality of said fixed targets source on map, the respective objects code of the corresponding user's input of each signal.

Said search orientator and said target source can be united frequency modulation, carry out the signal transmission to determine better frequency.

According to method and system of the present invention, further comprise:

A. import one group of code for said search orientator, said code is represented one group of predetermined fixed target source.

B. use numerous wireless signals of said search orientator reception from the said fixing target source.

C. use said group of code and search orientator that each wireless signal is checked.

If d. said wireless signal is answered mutually with the group code, said search orientator can be determined the orientation of each predetermined group target source.

E. show said each group object orientation.

Short distance active target search navigation allows the user comform and searches out the system of at least one object in the multiple target objects, comprises numerous target sources and represents numerous objects, and each said target source comprises:

A transmitting terminal, this transmitter unit is responsible for an echo signal, represents one or one group of intended target thing.

At least one searches for orientator, and said search orientator comprises:

A data input end is used for importing at least one object code by said user;

A receiving end is used for receiving at least one from the echo signal that target source sends, and determines whether echo signal conforms to the object code of input.

A central end for process is used for determining the orientation of echo signal when said echo signal conforms to said object code.

A display end is used for showing the orientation of selected object.

Further comprise according to the said target source of said system: a receiving end, be used for receiving activation signal, the effect of said activation signal is to activate target source.Said search orientator further comprises: a transmitting terminal is used for sending activation signal to selected target source.

The code input end of said search orientator is used for importing the numerous object codes from the user.

Whether the receiving end of said search orientator is used for receiving numerous echo signals, and determines these echo signals, conform to the object code that sets in advance.

Said central end for process is used for determining the echo signal orientation.

Said display end is used for showing all orientation of said numerous target sources.

According to method and system of the present invention, its object code has two kinds of classification sign indicating number and particular code.The classification sign indicating number divides big class and further segments the group sign indicating number according to standard.Particular code comprises one of following several parts at least:

At least one classification sign indicating number;

At least one descriptor code;

At least one specific geographical address code;

At least one specific names.

When the search orientator is only imported class code:

The search orientator is searched for the signal that all contain this classification sign indicating number; After filtering out the similar target that contains this classification sign indicating number, determine all these target direction; Show the similar target direction that all receive;

When search orientator input specific objective code:

The search of search orientator also filters out this specific objective code signal, and be presented on the display screen.

The search orientator contains internal memory, classification sign indicating number and special code is converted to sort out title and the specific objective title under all kinds of, and be presented on the display screen;

The specific objective title is appraised and decided the amount of money of paying by the complexity of its search, and the holder preferentially selects for the search orientator;

Definite target direction show and comprise a kind of of following several modes at least:

I, left and right two direction indications of demonstration;

The direction indication of II, 4 directions that show 90 degree five equilibriums and more refinement angle;

III, in order to following at least a method display direction and distance simultaneously;

(1) represent target with point or other icon, thus or the direction of icon decentering point and distance reflect direction and the distance of this target apart from the holder who searches for orientator;

(2) represent the inhomogeneity target with different icons, the direction of icon decentering point thus, far and near or this target of size reflection is apart from the holder's of search orientator direction and distance;

(3) with arrow or above-mentioned point orientation reflection direction, with color, brightness, density, size or numeral distance apart from central point;

(4) map software is installed, on map, shows the geographic position of search orientator and target.

As above-mentioned method and system, transmitting of its target source merged object code and real-time information, and real-time information is shown by the search orientator, to show the situation of selected object.

Target source is to be seated in to transmit on the object so that seek its position.If signal generator and target have certain distance, this signal generator can be represented its a series of target on every side, claims that this class signal generator is the target launching tower.The targeting signal of launching tower emission comprises the object code of target of its representative and the positional information of at least one target and target launching tower.

According to method and system of the present invention, at least one target launching tower (to call " LFS " in the following text) is installed is used for representing numerous target locations, to LFS programme the target location of storing its representative information and send a plurality of signals and represent all target locations, when said search orientator is searched in the described target location any one, search orientator and LFS carry out message exchange, use the latitude and longitude information of LFS and target location to carry out triangulation, measure direction and distance between search orientator and the target location.Numerous LFS are installed and form network, the collaborative plurality of cells zone of representing, owing to use the refile mode by first LFS to the second LFS unit area from first unit area to the second, said like this search orientator utilized the said LFS network zone that LFS disposed of all-networkization of going to navigate when said search orientator was sought not the target location in first unit area.

Therefore, the method and system of target is determined in the said searching of the present invention, utilizing the said search orientator of the present invention to locate one or more targets, has finally determined a class target such as restaurant, hotel allocation really.Felt the target of being sought by application searches orientator user, and finally seen this destination, as people's the 3rd eye assist human discover own lived around environment.

Description of drawings

Fig. 1 is the said system schematic of the present invention;

Fig. 2 is the operational flowchart of the said search orientator of the present invention;

Fig. 3 is the functional schematic of the said search orientator of the present invention;

Fig. 4 is the system schematic of the said target source of the present invention;

Fig. 5 is a target launching tower station network synoptic diagram.

Numbers and symbols is represented among the figure: 610,615 search orientators, 60,600,601,602,603,604 target launching towers, 620,624,630,634 arbitrary targets

Embodiment

With reference to the system schematic shown in the figure one, search orientator 610 and 615 is mobile devices that the user is used for seeking the short distance destination.The destination can be an office building X100, shop Y110, park P115 or buildings Z120.According to the present invention, search orientator 610 and 615 can be received in the wireless signal of sending from various destination in the limited distance.Have only screened go out of the signal of the desirable destination of holder of search orientator and on the search orientator, demonstrate its orientation.

Each destination will be installed a transmitter and (be claimed " target source ").This target source is programmed the code signal that emission is determined.The code that this cover is received for the search orientator by the target source emission has a cover Sort Code.It will between continuously by the target source emission for the retrieval of search orientator.

For example, when the holder of search orientator A wants to seek office building X, he will import the code of this office building, and search orientator A receives only the signal of the office building X that meets holder's input code by screening numerous signals.The signal that other target source that search orientator A is received is launched in limited distance will be filtered and not be presented on the display of search orientator A.

The holder of search orientator is in the landform of complexity, and as numerous buildingss, complicated street more benefits and utilizes this instrument to seek.When search orientator A is transfused to the code name of office building X and when beginning to search for its orientation, search orientator B may be transfused to the code of buildings Z and find the destination of Z.

The code that following object code is formed in the table can be made up of multi-section part.Similar object can be classified as a category code, and the user can only import class code and seek all this type of target, as restaurant, bank, department stores.For example, the class code of all banks is " 011 ", and the class code in all shops is " 020 ", and the class code in all restaurants is " 030 ".When the user wants to seek any restaurant lunch, he can an input code " 030 " when the user only seeks the fast food restaurant, just need add that in 030 back the code of fast food restaurant is as 110.When only seeking " McDonald ", the user just must import the particular code of " McDonald " again, as 3300.When the user only seeks " McDonald " that is seated in the Wangfujing Dajie, also need add location code, as " 5520 ".Therefore the user can seek a class target or a special objective according to different needs.

Object code is formed table

The classification sign indicating number	Sort out characteristic codes A	Sort out characteristic codes B	...	Region sign indicating number C	Name code
						The restaurant	Chinese meal	Fast food	...	The Zhong Guan-cun	Chicken velvet
The restaurant	Western-style food	Fast food	...	The Wangfujing	McDonald
						The restaurant	Sichuan cuisine		...	The Marquis Wu Shrine	The Beancurd Restaurant

The restaurant	Shanghai dishes	Millet cake	...	Si Chuanlu	The Yuyuan Garden restaurant
						...	...	...	...	...	...
Bank	A complete set of service		...	Dongfeng Road	Bank of China
						Bank	Sub-department			Prosperous road of spring	Construction Bank
...	...	...	...	...	...
						Traffic intersection				Jinjiang District	Second Ring Road X another name for Sichuan Province is the main road all
...	...	...	...	...
						The sight spot	The park	Public		Jinjiang District	The Xinhua park
The sight spot	The park	Public		The Haidian District	The Summer Palace
						The sight spot	Reservoir			Miyun	Miyun Reservoir
...	...	...	...	...	...
						Office building	Law	Traffic accident		The Xicheng District	Upright letter
Office building	Real estate			New south gate	Sincere
						The shop	Non-staple foodstuff	The supermarket		Nine bridges	Reciprocal
The shop	General merchandise			Prosperous road of spring	The Pacific Ocean
						Amusement	Cinema			Prosperous road of spring	The southwest shadow all
...	...	...	...	...	...

Be an example of target code table of the present invention below.Each target entity has an object code at least, and it comprises one of following several respects at least: one, at least one classification sign indicating number; Two, at least one sorts out characteristic codes; Three, at least one region sign indicating number; Four, at least one commerce or lodging title;

The intellectual of entity in code table is very tangible in the present invention.As " restaurant " or " park ", only be administerial meaning.And when this code when the searching instrument of locality is transmitted by reality or during the checking of searched instrument, they are by the electronic signal representative of 0 or 1 form.To each class entity, all have to surpass to be performed to further specify this entity than a more code of description code.As class code, sort out characteristic codes, region sign indicating number, name code.For example, a commercial entity can be " law office " " real estate office " or " shipping business "." shipping business " can be " FedEx " and " Courier " by difference.In fact an entity can have a plurality of object codes, with identical or accurate level, describes its difference more fully, perhaps replaces, offers, serves, adds member group, trading company or position.For example except tangible department or warehouse style market, the spy of Wal-Mart can have its member and a plurality of class code, or oneself numerous databases or tracing table are arranged.As " automatically department " " fast food " " florist's shop " etc. of " doing assorted shop ", the spy of Wal-Mart will can not ignore owing to any one searching " florist's shop " instrument like this, be replaced by " market ".In other words, according to the degree of functional and complicacy, a code table can become simple tracing table, perhaps a more complicated relevant database.Object code does not need only to distribute to the shop, can also distribute to park, tourist attractions, landmark, station, street and crossroad, street.Even citizen district and family guard station.Offer near local cell site, be launched away as code and help to seek the target location.According to the code of giving tourist spot and landmark, can distinguish out public park and theme park.

In case the code of target location is by standardization, coordinationization and be assigned with, code can be published and distributed by yellow pages, map, Internet, and the user finds that easily they will remove the code of destination.The search orientator can be downloaded common class code in advance, as restaurant, bank, hospital, police office or megastore.Need not special name code, user still available categories code receives any physical signal from an identical category.If the user knows special name code, use name code separately or be used in combination class code to add name code, the user can utilize the search orientator to go to locate special target location.

Further, the search orientator can be loaded in advance at these dealers' code and to its charge.Promptly preferentially enter searching instrument as Wal-Mart specially for its pre-installation code defrayment.A search orientator usually only can be by pre-installation category group code, if the user has selected a group code, it can find that all target locations all belong in this group code.For example the spy of Wal-Mart has paid an expense in advance, and its name will be displayed on the display in " megastore " this group.A user can select for use " spy of Wal-Mart " replacement " megastore " to go to dwindle and accurately location user's search.The prepackage expense of varying level has determined different prepackage forms.Such prepackage allows in one group of position therefore to be used as the entity that is different from other by preferential and show highlightedly.Therefore when the user searches for any one megastore owing to exactly imported " group " code, in case one of its group code formation rises when being linked to its private code of having been installed in advance, the user will see the spy of Wal-Mart that height is glittering.According to known disclosed patent, notch antenna be one owing to determining the antenna of the electronics phase place of Doppler-shift and signal gain, it is well-known, can be utilized to receive the signal from emissive source.Notch antenna is effectively in the city, and signal is tending towards buildings and structure reflection, is strong down to direct signal trend from target source.If signal intensity is presented under the irregular pattern and is received, the direction of maximum signal is promptly following.Should be noted that this searching instrument can be used as an engine and implements, or as a spare system.In a large-scale elect, as a navigational system plate or a communication system that moves automatically.

Figure two is the said search orientator of the present invention operating process schematic view illustratings.200 users at first import a code, can be one group of code or simple target sign indicating number, go to dwindle its selection then.210 search orientators begin to receive numerous wireless signals.220 search orientators are compared the signal of being received with input code, filter out the signal that is complementary with input code.230 calculate the orientation of matched signal.240 results are displayed on the search orientator.

Figure three is the explanations of the said search orientator of the present invention functional schematic.The reception that receiver 300 provides signal according to known radio-frequency technique and antenna technology.Code input end 310 input commands and code.Central authorities' end for process 320 handles the signal received, filter out desired signal, calculate the direction and the distance of its signal.The orientation of display 320 display-objects.Map end 340 is an option, can be on display screen displayed map.Further search for orientator transmitter 305 can be provided, this transmitter sends an activation signal, activates and is loaded with the target source of the selected code of this search orientator, and transmit and this search orientator communication.

Figure four is the explanations of the said target source functional schematic of the present invention.Target source is seated on the object, and its transmitter function at first is code signal of modulate emission, and its operation can utilize process control 400 to implement.These technology are very ripe, also have existing widely emitter selective.Technical parameters such as used frequency, power need meet government specifications.410 select more clearly, and frequency range exchanges with searching instrument.Sleep pattern 420 is set transmitter and how to be entered sleep state and how to enter the power storage state, how to wake transmitter when needing to activate up.Variable rate 430 is set electric wave and is launched off time.Be loaded with multiple code for target source, represent the different target thing, object code switches the transmission rule of 440 control different codes.At last by the wireless code signal of 460 emissions.When target source has sleep function, need to load receiving terminal 470 and receive activation signal.Code screening 450 is used for checking whether the activation signal of being accepted is to be its represented entities code, issues instructions to sleep module 420 after the affirmation, transmits by 460 subsequently and searches for orientator and communicate by letter.

Another aspect of the present invention is to set up the target launching tower, represents and support a plurality of objects near each launching tower or in the unit area.Echo signal tower LFS has been installed in each unit area among Fig. 5, LFS can be gone to store relevant position (latitude/longitude coordinates) information by sequencing, search orientator 610 moves in the LFS unit area attempts to seek one's respective area target 630, and it has been set up with LFS600 and has communicated by letter.Because LFS600 has by the latitude and longitude information in all fixed target sources of sequencing.LFS600 transmits signals to search orientator 610, and by the longitude and latitude of known LFS600 and fixed target 630, distance and bearing can be drawn by triangle law between search orientator 610 itself and the fixed target 630.If increase network infrastructure, LFS600---LFS604 also can be provided with by networking.When search orientator 615 sends an object code to LFS600, LFS602, if target is in its unit area, both sides' LFS will search in their database, find to have the LFS of target in the unit area will reply with beginning and communicate by letter with search orientator 615 and navigate and remove its target source.The code that search orientator 615 sends a target 630 is to LFS602, this target source not in the unit area of LFS602, and in this case, LFS network 60 will assist LFS602 to remove to seek other LFS website of target source 630.When learning that LFS600 has in the unit area of target 630 at it, transmit LFS600 and target 630 latitude and longitude information and give LFS602, finally search for orientator 615 and obtain this information, go out the orientation of target 630 again by the triangle location Calculation.

Say that further search orientator 615 can be applied to utilize the communication of at least two LFS websites as latitude and longitude coordinates.According to two latitude and longitude coordinates that the LFS website is known, search orientator 615 can be easy to calculate its present longitude and latitude.Search orientator 615 can upgrade the latitude and longitude coordinates that it has, owing to continuously seek on its relevant known latitude and longitude coordinates of two LFS site locations based on them.So fixed position and target location based on LFS utilize three traditional angle positioning methods, by the refile method of LFS transmitter success, searching instrument can be navigate to the target location.A target source can be installed in the crossroad, street, and such street website can be by networking so that the driver can be navigate to the crossing, street.If when the driver does not have at the beginning in the unit area in target street, can transmit by successful LFS website indirect force.Therefore be not limited to the short distance location, and the location of target search on a large scale of realizing all LFS nerves of a covering.

One embodiment is that a homemade cover comprises a search orientator, the system of five target sources.Communication frequency is located at 868MHz, is applied in the Disneyland.Five target sources are divided into 1,2,3,4,5 five codes.No. 1 target source is carried by a child; No. 2 target source is placed on the dining room in front of the door; No. 3 target source is placed on " advance through the rapids " game port; No. 4 target source is placed on " train rolls " game port; No. 5 target source is placed on doorway, a lavatory.This demonstration search orientator has a code gauge tap, can select 1 to No. 10, and a moment can only be selected a number, shows can only search for a target source simultaneously.It by about two luminous lamp tubes form.When left side lamp was bright, the expression target was on its left side.When right side lamp was bright, the expression target was on its right side.The search orientator of hand-held these two the cigarette case sizes of user revolves three-sixth turn, when two lamps are simultaneously glittering, shows that this direction is the target direction of being searched for.The emissive power of the target source of this cover demo system is 5mw only.Open field can be received this signal outside 1 kilometer.Power according to signal has ten LED lamps on the search orientator.All lamps are bright to show that signal is the strongest, close at hand.The bright distance that shows of LED lamp, about one kilometer.When code gauge tap on searching instrument was selected No. 1, lamp bright demonstration in left side was carried the child of this No. 1 target source in the left side.Determine the direction that the strongest two lamps are simultaneously glittering by 360 degree search, this direction is child place direction.Because child is also moving, so need to adjust at any time the direction of search, finally finds this child.When selecting 2,3,4, No. 5 targets respectively, according to this reason also easily found want the destination gone to.

Further, the target source of point of play can add game profile, and how many people's queuings are arranged, and approximately need wait and how long wait information, selects so that the visitor is planned, rationally arranges the time.Information such as attendance, menu and price also can be issued in the dining room.Like this search orientator the holder convenient and swift obtain instant messages in, also guaranteed to obtain a high-quality holiday.

In sum, it is extensive that this overlaps active target homing navigation system application, not only clustering area such as theme park, market, exhibitions, skifields etc. are suitable for, also can be distributed in fixed location, whole town and country, buildings, comprise: industry, agricultural, commercial distributed points, street, sight spot, lavatory even domestic household, all can utilize this cover system to seek the location, even carry out exploitation.This system also can be used for the search of moving target and follows the tracks of, as child, pet, mobile phone, freight transportation monitoring etc.The search orientator can with the cellular base station positioning system, even GPS global location navigational system unites use, to remedy deficiency separately.The function of this search orientator can be added on other common tools, as mobile phone, PDA, vehicle etc., so that popularize and use.

Claims (13)

1, the system of active target search navigation is characterized in that:

A. similar object or each individuality have its code of only one;

B. by being installed in the target source on similar object or each individuality, or being installed in the target launching tower of the numerous targets in the representative specific geographical area scope in the specific geographical area, emission is loaded with the radiowave of above-mentioned code and determines the object of above-mentioned code representative;

C. a fixing or mobile receptacle can independently calculate the radiowave that docks with it by the code screening, and shows the orientation of the object of above-mentioned radiowave representative.

2, the system as claimed in claim 1 is characterized in that:

Utilize a search orientator in the scope of determining, to seek the target source orientation;

Wherein each above-mentioned target source is installed in and represents at least more than one to fix or moving target on the object;

Wherein each target source is launched at least one above-mentioned target of at least one code signal representative;

Above-mentioned search orientator is imported at least one object code;

Above-mentioned search orientator is determined the orientation of at least one target source.

3, the system as claimed in claim 1 is characterized in that:

This system comprises at least one target source, and above-mentioned target source is located in or near at least one object, is loaded with the code of this object; Above-mentioned target source comprises a transmitting terminal, and this transmitting terminal is responsible for launching at least one object code signal, represents at least one or a class target.

4, the system as claimed in claim 1 is characterized in that:

This system comprises at least one target launching tower, this target launching tower is represented the numerous targets in the specific geographical area scope, and the wireless target signal packet of this target launching tower emission is drawn together the object code of target of its representative and the positional information of target launching tower and specific objective.

5, the system as claimed in claim 1 is characterized in that:

This system comprises the search orientator, and its search orientator comprises:

A code input end is used for importing at least one object code;

Receiving end is used for receiving at least one from the wireless signal that target source or target launching tower send, and determines whether this signal meets the object code of above-mentioned input;

Selected target direction is responsible for handling, is screened and calculate to a central end for process;

A display end is used for showing selected target direction.

6, system as claimed in claim 5 is characterized in that:

At least comprise one of following feature:

A. above-mentioned search orientator loads compass functional;

B. above-mentioned search orientator calculates the relative direction and the distance of search orientator and selected target according to the longitude and latitude of 2 of distance objective launching tower and selected targets;

C. above-mentioned search orientator is communicated by letter with adjacent two target launching towers, determines the orientation of oneself by the known orientation of these two target launching towers;

D. numerous above-mentioned target launching towers have been formed the fixed target network, work in coordination with the overlay area on a large scale of representing numerous geographic areas, unit and having formed the target of all installation targets launching tower representatives; Each target launching tower all possesses receiving function simultaneously, and each search orientator also possesses emission function simultaneously; Target launching tower in the said fixing objective network can transmit information mutually, for above-mentioned search orientator provides close required target position information, thereby calculates direction and the distance of this search orientator apart from this target.

7, as claim 2,3,4 or 5 described systems is characterized in that:

Its object code has two kinds of classification sign indicating number and particular code, and its classification sign indicating number divides big class and further segmentation group according to standard, and its particular code comprises one of following several parts at least:

At least one classification sign indicating number;

At least one descriptor code;

At least one specific geographical address code;

At least one specific names.

8, as claim 2,3, or 5 described systems, it is characterized in that:

Above-mentioned target source is equipped with the wireless interface receiver, is under the sleep state under normal conditions not transmit.

9, as claim 4 or 5 described systems, it is characterized in that:

Above-mentioned target launching tower is equipped with the wireless interface receiver, is under the sleep state under normal conditions not transmit.

10, system as claimed in claim 2 is characterized in that:

Above-mentioned search orientator has wireless launcher, can send the above-mentioned target source of signal activation.

11, system as claimed in claim 5 is characterized in that:

Above-mentioned search orientator has wireless launcher, can send above-mentioned target source of signal activation or target launching tower.

12, as claim 2 or 5 described systems, it is characterized in that:

A, it contains internal memory, classification sign indicating number and special code is converted to sort out title and the specific objective title under all kinds of, and be presented on the display screen;

B, specific objective title appraise and decide the amount of money of paying by the complexity of its search, and the holder preferentially selects for the search orientator;

13, as the described system of claim 2,3 or 4, it is characterized in that:

Its signal comprises object code and is real information that it is that real information will be presented on the above-mentioned search orientator, so that understand the multidate information or the advertising of its target.

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