CN201837718U - Indoor and outdoor positioning system based on electronic radio-frequency tags and database - Google Patents
Indoor and outdoor positioning system based on electronic radio-frequency tags and database Download PDFInfo
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- CN201837718U CN201837718U CN2010200332822U CN201020033282U CN201837718U CN 201837718 U CN201837718 U CN 201837718U CN 2010200332822 U CN2010200332822 U CN 2010200332822U CN 201020033282 U CN201020033282 U CN 201020033282U CN 201837718 U CN201837718 U CN 201837718U
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Abstract
The utility model relates to an indoor and outdoor positioning system based on electronic radio-frequency tags and databases. The indoor and outdoor positioning system comprises a reading device and a plurality of electronic radio-frequency tags, wherein the electronic radio-frequency tags communicate with the reading device through wireless radio-frequency to obtain coded information in the tags, the electronic radio-frequency tags are arranged on fixed or mobile markers which are indoor and outdoor, the reading device is a movable device, the database of the electronic radio-frequency tags contains the coded information of the tags, the coded information is only associated with position information rather than user information, and the database of the reading device contains geographic information. The indoor and outdoor positioning system adopts the electronic radio-frequency tags in high-density deployment and the wireless reading device, so as to realize more precise positioning, and cover an area which is difficult to achieve in the prior art; by adopting the electronic radio-frequency tags, the deployment cost is low, and the indoor and outdoor positioning system is more applicable to mobile computing; and coded content of the electronic radio-frequency tags is not associated with the user information, so as to solve the problem of exposure of position and privacy of users.
Description
Technical field
The utility model relates to a kind of positioning system that is used for logistics and navigation, is specifically related to a kind of indoor and outdoor positioning system based on electronic radio frequency tags and database.
Background technology
Location-based service (LBS:Location Based Service) is the field that of electronics and information industry has widespread use and great market value, and present existing positioning system comprises following several:
One, GPS location
Global position system GPS is a navigational system based on the round orbiter of middle distance.It can be for earth surface overwhelming majority area provides accurate in locating, tests the speed and the high precision time standard, and gps system is made up of about 24 special-purpose gps satellites and ground-support equipment.Civilian GPS can reach the bearing accuracy about ten meters.
Its shortcoming is: the GPS precision is not high, and in can not covering chamber and the exterior space of covering, is difficult for disposing, and the user is when using navigation Service simultaneously, and oneself is also tracked, and privacy can not be protected.
Two, WiFi wireless location
WiFi (WLAN (wireless local area network)) and similar wireless location based on the IEEE802.11 agreement are at least one accessing points and one or more client, the WiFi network that is provided with under the IEEE802.11 agreement, its IEEE802.11 agreement adopts the mode of two kinds of wireless frequency modulation modes and a kind of Infrared Transmission.Communication between two equipment can free directly mode be carried out, and also can carry out under the coordination of base station or accessing points.
Its shortcoming is: any wide-area deployment cost height, need active client device, and the precision about 10 meters has limitation to indoor application, and maintenance workload is big, and the user is tracked too.
Three, mobile phone running fix
Mobile Phone Locating is to utilize the cellular technology of GSM or cdma wireless mobile radio communication to realize the inquiry of positional information, GSM or cdma wireless communication net are to be made up by many sub-districts as the honeybee honeycomb to form, all there is the numbering of oneself each sub-district, just can know the mobile phone region by the identifier of sub-district, mobile phone place.
Its shortcoming is: not enough to the indoor application bearing accuracy, and can't protect user's privacy.
RFID is the abbreviation of Radio Frequency Identification, and promptly radio-frequency (RF) identification is commonly called as electronic radio frequency tags.The RFID radio-frequency (RF) identification is a kind of contactless automatic identification technology, and it is by the automatic recognition objective object of radiofrequency signal and obtain related data, and identification work need not manual intervention, can work in various rugged surroundings.The RFID technology can be discerned high-speed moving object and can discern a plurality of labels simultaneously, and is swift and convenient to operate.
The utility model content
The utility model provides a kind of indoor and outdoor positioning system based on electronic radio frequency tags and database, can realize high-precision indoor and outdoor geo-location, and lower deployment cost is low, more is applicable to mobile computing, has solved user's position and the problem that other privacies are exposed.
For achieving the above object, the utility model provides a kind of indoor and outdoor positioning system based on electronic radio frequency tags and database, and this system comprises fetch equipment, and some electronic radio frequency tags; Discern by less radio-frequency between this electronic radio frequency tags and the fetch equipment.
Above-mentioned electronic radio frequency tags is arranged on the fixing or mobile marker of indoor and outdoor; Above-mentioned fetch equipment is a movable equipment.
The position encoded information that includes label in the database of above-mentioned electronic radio frequency tags; Include geography information in the database of above-mentioned fetch equipment.
Above-mentioned electronic radio frequency tags comprises geographical labels and object label; This geographical labels is in the absolute rest state; Store position encoded and object self title of object and the coding of character in this object label, object can be moved, when this object label is moved, needs according to practical application, again artificial or obtain to move with apparatus measures after positional information, and the database location coded message of this object label of corresponding renewal.
Above-mentioned electronic radio frequency tags is active or passive, and the transmission frequency of this electronic radio frequency tags is low frequency or high frequency or ultrahigh frequency.
Above-mentioned fetch equipment is divided into high frequency reader and ultrahigh frequency reader, and the reading distance of this high frequency reader is 0 to 20 centimetre, and the reading distance of this ultrahigh frequency reader is 0 to 2 meter.
The geographic position coded message that writes down in the above-mentioned fetch equipment database comprises:
One-level object of reference five dimension coordinates, this five dimension coordinate comprises geographic longitude, latitude, absolute altitude height, relative floor level, positioning time;
The historical record of one-level object of reference five dimension coordinates;
The secondary object of reference is with respect to the relative four-dimensional coordinate of first order object of reference, and this four-dimensional coordinate comprises longitude, latitude, height and time;
The relative four-dimensional coordinate of N level (N＞=2) the relative N-1 level of object of reference object of reference;
The relative four-dimensional coordinate of the relative N level of each electronic radio frequency tags object of reference;
The historical record of the four-dimensional coordinate of objects of reference at different levels and each electronic radio frequency tags.
A plurality of electronic radio frequency tags are set in a zone in advance, when fetch equipment is surveyed, one of them electronic radio frequency tags is fed back its position encoded information to fetch equipment, and fetch equipment is according to this its database of position encoded information inquiry, and draws the geography information of this electronic radio frequency tags.
The utility model provides a kind of indoor and outdoor positioning system based on electronic radio frequency tags and database.Compare with existing positioning system, its advantage is that the utility model system adopts electronic radio frequency tags and wireless fetch equipment, can realize more accurate localization, can cover the unapproachable zone of prior art;
The utility model adopts electronic radio frequency tags, and lower deployment cost is cheap, more is applicable to mobile computing;
The electronic radio frequency tags that the utility model adopts, its encoded content only related with positional information and not with user information correlation, can initiatively not reveal fetch equipment and user's information, solve customer location and privacy exposed problems, improve security and privacy that the user uses.
Description of drawings
Fig. 1 is the structural representation of the utility model based on the indoor and outdoor positioning system of electronic radio frequency tags and database.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises fetch equipment 1 based on the indoor and outdoor positioning system of electronic radio frequency tags and database, and some electronic radio frequency tags 2; Discern by less radio-frequency between this electronic radio frequency tags 2 and the fetch equipment 1.
The information that is comprised in the database of fetch equipment 1 has following all or part of information:
One, one-level object of reference five dimension coordinates, this five dimension coordinate comprises geographic longitude, latitude, absolute altitude height, relative floor level, positioning time;
Two, the historical record of one-level object of reference five dimension coordinates;
Three, the secondary object of reference is with respect to the relative four-dimensional coordinate of first order object of reference, and this four-dimensional coordinate comprises longitude, latitude, height and time, for example the four-dimensional coordinate of certain buildings reference point;
Four, the relative four-dimensional coordinate of N level (N＞=2) the relative N-1 level of object of reference object of reference, for example four-dimensional coordinate of the reference point in certain room;
Five, the relative four-dimensional coordinate of each electronic radio frequency tags 2 relative N level object of reference;
Six, the historical record of the four-dimensional coordinate of objects of reference at different levels and each electronic radio frequency tags 2.
Wherein, the absolute coordinates of electronic radio frequency tags 2 or N level object of reference can be by the simple addition of respective items of the coordinate of preceding N level object of reference promptly.
Electronic radio frequency tags 2 adopts the active or passive electronic radio frequency tags of the various frequencies of present public offering, its can be arranged at indoor and outdoor ground and wall etc. other fix or mobile attachment on.Electronic radio frequency tags 2 is provided with database, record specific coding in this database, its essential characteristic is that each electronic radio frequency tags 2 has unique coding, because general label can store 64 to the 1k position, therefore can be provided with 2 the individual electronic radio frequency tags 2 that has different coding of 64-1024 power at most.
The geographical location information of electronic radio frequency tags 2 can directly or by formula be calculated by fetch equipment 1 according to current longitude and latitude and elevation information.For example, suppose that electronic radio frequency tags 2 can store 32bit information altogether, it can be divided into one section of every 8bit, coding back storage longitude, latitude, height and other information, when reading according to prior about definite decoding, if final step is with each ring shift left of 2 ary codes during coding, at first each does ring shift right with regard to needing during decoding.
Electronic radio frequency tags 2 is divided into geographical labels and object label, and geography is in the absolute rest state generally speaking, its geographical location information at different levels of data-base recording; The object label may be moved, and when playing the role of positioning, is to remain static, if be moved, lane database will upgrade the geography information of its representative, can also write down or by calculating the relative position with geographical labels or other object labels, for next step application provides information.
The localization method of a kind of indoor and outdoor positioning system based on electronic radio frequency tags and database that the utility model provides is as follows:
With a plurality of electronic radio frequency tags 2 according to requirement of actual application, be arranged in advance in the indoor and exterior space of covering that need position by different density, stick on body surface, place that carpet or floor are inferior be can't see but place that radiowave can be transmitted into, the point of each setting is provided with one or more geographical labels or object label, can be active or passive, also can be the electronic radio frequency tags 2 of low frequency, high frequency or ultrahigh frequency, the dissimilar different read ranges of electronic radio frequency tags 2 correspondences.After setting electronic radio frequency tags 2, all be recorded in each electronic radio frequency tags 2 geographical location information in the database; When fetch equipment 1 detects this electronic radio frequency tags 2 and its signal intensity and surpasses the threshold value of formulating in advance, just illustrate that electronic radio frequency tags 2 is in the reading distance of fetch equipment 1, an electronic radio frequency tags 2 is read if having not only in maximum reading distance, and 1 of fetch equipment is chosen the strongest electronic radio frequency tags of signal 2 as the label that is used for locating; Then, fetch equipment 1 emitting radio wave is to electronic radio frequency tags 2; Behind the electric wave signal of electronic radio frequency tags 2 induction fetch equipments 1, the position encoded information in feedback interior data storehouse is to fetch equipment 1; Fetch equipment 1 is again according to the position encoded information in the tag database that is read, geography information in inquiry fetch equipment 1 database, obtain the on-site geographical location information of label, perhaps fetch equipment 1 also can be according to the position encoded information in electronic radio frequency tags 2 databases that read, current longitude and latitude and elevation information are calculated by formula, obtain the on-site geographical location information of this label.And fetch equipment 1 position approximates the position at these electronic radio frequency tags 2 places greatly, the maximum error in geographic position is the maximum reading distance of fetch equipment 1, for example, when the maximum reading distance of fetch equipment 1 is 1.5 meters, fetch equipment 1 is 1.5 meters to the maximum deviation of himself location positioning, and, can obtain more accurate localization by threshold setting to signal intensity, the high more location of threshold value is accurate more; At last, fetch equipment 1 shows its current on-site geography information.
Under above-mentioned mode; position encoded information from electronic radio frequency tags 2 one-way transmissions to fetch equipment 1; electronic radio frequency tags 2 is by the radio wave transmissions data of induction fetch equipment 1 emission; electronic radio frequency tags 2 can not obtain fetch equipment 1 and user's thereof information; electronic radio frequency tags 2 can not outwards initiatively be launched the information relevant with fetch equipment 1; as long as fetch equipment 1 itself does not outwards send the information of self; other equipment or people just can not obtain user's information by this approach; user's privacy can obtain protection to a certain degree like this, can not reveal privacy information because of the technical characterstic of system self.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (3)
1. the indoor and outdoor positioning system based on electronic radio frequency tags and database is characterized in that, this system comprises fetch equipment (1), and some electronic radio frequency tags (2); Discern by less radio-frequency between described electronic radio frequency tags (2) and the fetch equipment (1);
Described electronic radio frequency tags (2) is arranged on the fixing or mobile marker of indoor and outdoor; Described fetch equipment (1) is a movable equipment.
2. the indoor and outdoor positioning system that is used for based on electronic radio frequency tags and database as claimed in claim 1, it is characterized in that, described electronic radio frequency tags (2) is active or passive, and the transmission frequency of described electronic radio frequency tags (2) is low frequency or high frequency or ultrahigh frequency.
3. the indoor and outdoor positioning system that is used for based on electronic radio frequency tags and database as claimed in claim 1, it is characterized in that, described fetch equipment (1) is divided into high frequency reader and ultrahigh frequency reader, the reading distance of described high frequency reader is 0 to 20 centimetre, and the reading distance of described ultrahigh frequency reader is 0 to 2 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200332822U CN201837718U (en) | 2010-01-20 | 2010-01-20 | Indoor and outdoor positioning system based on electronic radio-frequency tags and database |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200332822U CN201837718U (en) | 2010-01-20 | 2010-01-20 | Indoor and outdoor positioning system based on electronic radio-frequency tags and database |
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| CN201837718U true CN201837718U (en) | 2011-05-18 |
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| CN2010200332822U Expired - Fee Related CN201837718U (en) | 2010-01-20 | 2010-01-20 | Indoor and outdoor positioning system based on electronic radio-frequency tags and database |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103379620A (en) * | 2012-04-19 | 2013-10-30 | 国民技术股份有限公司 | Positioning method and positioning system |
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- 2010-01-20 CN CN2010200332822U patent/CN201837718U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103379620A (en) * | 2012-04-19 | 2013-10-30 | 国民技术股份有限公司 | Positioning method and positioning system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20120120 |