CN101206122B - Round island retrieval device - Google Patents

Abstract

The invention discloses a ring island retrieval device which comprises: an input unit used to receive names of ring islands; a ring island information configuration unit used to store the related information of ring islands into a navigation electronic map database; a word division unit used to carry out the division treatments to the names of ring islands in the input unit to obtain a plurality of terms; a matching unit used to find fields matched with the terms in the navigation electronic map database; a display unit used to display the related information of the fields found by the matching unit. The ring island information configuration unit is adopted to store the information of ring islands into the navigation electronic map database, thereby being capable of retrieving the ring islands and ensuring that the retrieved information is much richer.

Description

The rotary island indexing unit

Technical field

The present invention relates to the electronic navigation field, refer to a kind of rotary island indexing unit of electronic navigation system especially.

Background technology

Along with the continuous development of onboard navigation system application technology, vehicle mounted guidance hardware, software also reach its maturity, and navigation data information is progressively perfect.The search method of existing onboard navigation system and equipment provide query functions such as " spelling retrieval ", " periphery retrieval ", " key search " of point of interest (POI) information mostly, utilize search function, the user is the enquiry navigation relevant information quickly and easily.For example the user wants that with " Palace Museum " be navigation destination, as long as input " Palace Museum " in query interface, onboard navigation system is carried out matching inquiry according to the information of user's input in navigational route database, if can find corresponding record, on map of navigation electronic, show its relevant information according to this POI coordinate, comprise details such as title, address, phone, brief introduction, peripheral facility.

The method of the retrieval and inquisition information of existing onboard navigation system can retrieve navigation-related information quickly and easily, such as POI information, road information etc.But,, but can not retrieve out such as the means of transportation information of " rotary island " this type for special means of transportation.Described rotary island refers to two or many crossings that the intersection of roads has annular annexation, for vehicle-mounted user, this is the transport information of paying close attention to, because not only rotary island is the hinge of road traffic, and in certain area coverage, have certain geographical indication effect, significant to vehicle mounted guidance path planning and route guidance.The rotary island title refers to that two or many intersections of roads have the title at the crossing of annular annexation, for example the title of " panda rotary island ", " Dongguan rotary island " etc.

Summary of the invention

The problem to be solved in the present invention provides the abundant rotary island indexing unit of a kind of retrieving information.

In order to address the above problem, rotary island indexing unit of the present invention comprises:

Input block is used to receive the rotary island title;

Rotary island information configuration unit is used for depositing the information relevant with rotary island in navigation electronic;

The participle unit is used for described input block rotary island title is carried out word segmentation processing to obtain some lemmas;

Matching unit is used for finding out the field of mating with described lemma in navigation electronic;

Display unit is used to show the relevant information of finding out with described matching unit of field.

Described participle unit further comprises:

Search the unit, be used for searching the rotary island title at dictionary, described dictionary refers to the set of lemma;

First judging unit is used to judge whether the described unit of searching finds described rotary island title;

Rotary island title processing unit, if the information that receives from described first judging unit is "No", the rotary island title is given the described unit of searching after then reducing the length of described rotary island title and will reducing length;

Storage unit is used to deposit character that described rotary island title processing unit intercepts and the rotary island name that finds is referred to as a lemma storage;

Second judging unit judges in the described storage unit whether to also have the not part of participle, if also have then not the part of participle to give the described unit of searching, otherwise lemma is exported.

Described display unit further comprises:

Sequencing unit is used for according to the height of matching degree the field that described matching unit retrieves being sorted;

Relevant display unit, the order that is used for arranging according to sequencing unit shows the information relevant with described field.

Compared with prior art, the beneficial effect of the utility model rotary island indexing unit is:

Because the utility model rotary island indexing unit adopts rotary island information configuration unit, rotary island information is deposited in the navigation electronic, thereby can retrieve rotary island, the feasible more abundant information of being retrieved.

Description of drawings

Fig. 1 is the structural drawing of the utility model rotary island indexing unit;

Fig. 2 is the structural drawing of the participle unit among Fig. 1.

Embodiment

As shown in Figure 1, the utility model rotary island indexing unit comprises:

Input block 100 is used to receive the rotary island title;

Rotary island information configuration unit 104 is used for depositing the information relevant with rotary island in navigation electronic;

Participle unit 101 is used for the rotary island title that described input block 100 obtains is carried out word segmentation processing to obtain some lemmas;

Matching unit 102 is used for finding out the field of mating with described lemma at database;

Display unit 103 is used to show the relevant information of finding out with described matching unit 102 of field.

In navigation electronic, deposit road, point of interest and various information.For rotary island, all information of this rotary island all leave in the rotary island database table, and are as shown in table 1:

Table 1

Wherein, field " ID " is the major key of this table, increases progressively successively;

Field " NAME " expression rotary island title;

The abbreviation of field " NAMESPELL " expression rotary island title;

Field " TYPE " expression type, " 1 " represents rotary island;

Field " AD_CODE " expression administrative division code.

As shown in Figure 2, described participle unit 101 further comprises:

Search unit 1010, be used for searching the rotary island title at dictionary, described dictionary refers to the set of lemma;

First judging unit 1011 is used to judge whether the described unit 1010 of searching finds described rotary island title;

Rotary island title processing unit 1012 is given the described unit 1010 of searching if the information that receives from described first judging unit 1011 is rotary island title after "No" then reduces the length of described rotary island title and will reduce length;

Storage unit 1013 is used to deposit character that described rotary island title processing unit 1012 interceptings fall and the rotary island name that finds is referred to as a lemma storage;

Second judging unit 1014 judges in the described storage unit 1013 whether to also have the not part of participle, if also have then not the part of participle to give the described unit 1010 of searching, otherwise lemma is exported.

Described display unit 103 further comprises:

Sequencing unit 1030 is used for according to the height of matching degree the field that described matching unit 102 retrieves being sorted;

Relevant display unit 1031, the order that is used for arranging according to sequencing unit shows the information relevant with described field.

Participle in above-mentioned refers to continuous word sequence is reassembled into according to certain standard the process of word sequence.For example: " Dongguan, Changping rotary island ", this Chinese character string can obtain " Changping ", " Dongguan rotary island ", two participle unit through word segmentation processing, be also referred to as two lemmas, that is to say, rotary island title " Dongguan, Changping rotary island " is resolved into the word sequence with two lemmas.Finding out the field of mating with described rotary island title or described lemma in database also will relevant information (record) show with field.So not only will come out, also will also retrieve out, thereby, also can retrieve the required information of user even the user is imperfect with the input of rotary island title with the information that described lemma is complementary with the information retrieval that the rotary island title is complementary.

Now the rotary island indexing unit with certain company's development is that example describes technical scheme of the present invention in detail.

In this example, the false code of realization rotary island information configuration unit 104 is:

public?void?addHdName(String?name，String?namespell，String?type，String?ad_code)

{

String?sql＝″insert?into?Hdname(NAME，NAMESPELL，TYPE，AD_CODE)

values(″′+name+″′，″′+namespell+″′，″′+type+″′，″′

+ad_code+″′)″；

stmt.executeUpdate(sql)；

}

The false code that unit 1010 is searched in realization is:

String key=" rotary island title ";

While (the lemma content in the dictionary is not empty)

Judge whether the lemma content equals key,

If equate then withdraw from circulation, otherwise carry out word segmentation processing;

}

The false code that realizes rotary island title processing unit 1012 is:

String key=" rotary island title ";

If (not finding the rotary island title)

The former rotary island title of key=length reduces the result after 1;

Carry out Unit 1010;

}

The false code that realizes sequencing unit 1030 is:

The lemma number of rotary island title through obtaining behind the participle of int num=user input;

Int[] string length of each lemma of length=;

The length of name of each record that int len=searches out;

{ // word segmentation result is this speech itself to if (num==1)

Len and length are relatively.Len is big more, after the result leans on more;

}

else{

Num is big more, represents that the lemma quantity that this record comprises is many more, and the result should forward demonstration.

When num is the same, then relatively the record length, the forward demonstration that length is little;

}

Input block 100 receives the term of user's input, and term is delivered to participle unit 101; The 101 pairs of terms in participle unit carry out word segmentation processing, obtain word segmentation result, and word segmentation result is delivered to matching unit 102; Find out the relevant record of term therewith in the rotary island database table of matching unit 102 in navigation electronic, obtain results set, and results set is delivered to display unit 1030, then relevance ranking unit 1031 shows institute's retrieved message.

For example, user search be " Dongguan, Changping rotary island ", input block 100 receives this term, be " Changping " through the result who obtains after 101 processing of participle unit, " Dongguan rotary island ", matching unit 102 are searched the record with the word segmentation result coupling in the rotary island database table, obtain results set, display unit is to the results set processing of sorting, and is shown to the user.

In sum,, rotary island information is deposited in the navigation electronic, thereby can retrieve rotary island, the feasible more abundant information of being retrieved because rotary island indexing unit of the present invention adopts rotary island information configuration unit.

Claims (2)

1. a rotary island indexing unit is characterized in that, comprising:

Input block is used to receive the rotary island title;

Rotary island information configuration unit is used for depositing the information relevant with rotary island in navigation electronic;

The participle unit is used for described input block rotary island title is carried out word segmentation processing to obtain some lemmas;

Matching unit is used for finding out the field of mating with described lemma in navigation electronic;

Display unit is used to show the relevant information of finding out with described matching unit of field;

Wherein, described participle unit specifically comprises:

Search the unit, be used for searching the rotary island title at dictionary, described dictionary refers to the set of lemma;

First judging unit is used to judge whether the described unit of searching finds described rotary island title;

Rotary island title processing unit, if the information that receives from described first judging unit is "No", the rotary island title is given the described unit of searching after then reducing the length of described rotary island title and will reducing length;

Storage unit is used to deposit character that described rotary island title processing unit intercepts and the rotary island name that finds is referred to as a lemma storage;

Second judging unit judges in the described storage unit whether to also have the not part of participle, if also have then not the part of participle to give the described unit of searching, otherwise lemma is exported.

2. rotary island indexing unit as claimed in claim 1 is characterized in that, described display unit further comprises:

Sequencing unit is used for according to the height of matching degree the field that described matching unit retrieves being sorted;

Relevant display unit, the order that is used for arranging according to sequencing unit shows the information relevant with described field.

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