CN105046629A - Space positioning method based on digital codes - Google Patents
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Abstract
The invention discloses a space positioning method based on digital codes. The method comprises the following steps of: using a Cartesian rectangular coordinate system; selecting a preset position as a coordinate origin; building a coordinate system; obtaining a coordinate position of a target point; generating an initial digital code according to a preset coding rule, wherein the digital code comprises an administrative region code, an area code, an address code and a height code; obtaining an error correction coefficient of the target point from the origin in directions along the transverse and longitudinal coordinates through comparing the longitude and latitude addresses of the target point and the origin; using an error correction algorithm to obtain the corrected area code and address code of the target point through calculation; further obtaining the final digital code of the target point. The method has the beneficial effects that the target points can be precisely positioned and uniquely expressed; and precise positioning information can be continuously and stably obtained.
Description
Technical field
The present invention relates to space orientation technique field, specifically, relate to a kind of space-location method based on numerical digit coding.
Background technology
Along with traffic, the developing rapidly of cyber city's process, the scope expanding day of people's activity, to geographical and sterically defined demand is also more and more stronger.Longitude and latitude location is the most accurate current locator meams, the latitude and longitude coordinates that tellurian each point has it unique.But the calculating of longitude and latitude and location too specialty and complicated for general public, and latitude and longitude coordinates lacks the description of, position geographical to this point and social property.Therefore, directly use the locator meams application of latitude and longitude coordinates not extensive, be used for the professional domains such as military affairs, politics, geophysical surveying.
Longitude and latitude is the coordinate system that longitude and dimension are collectively referred to as composition, is also called geographical co-ordinate system.It a kind ofly utilizes tridimensional sphere to define the spherical coordinate system in tellurian space, can indicate any one position tellurian.Dimension refers to that certain is put and angle, line face formed by the earth equatorial plane of the line of the earth centre of sphere, and its numerical value is between 0 to 90 degree.The dimension being positioned at the point to the north of equator, north latitude, is denoted as N; The dimension being positioned at the point on the south equator, in south latitude, is denoted as S.The about 40008km of terrestrial meridian total length.Average dimensions 1 degree=approximately 111km, dimension 1 point=approximately 1.85km, dimension 1 second=approximately 30.9m.Longitude is divided into 360 degree, every 15 degree of time zones, wherein 0 degree be the first meridian.Every distance once of longitude from 0km to 111km not etc.Its distance changes with the difference of dimension, and concrete numerical value equals the cosine that 111km is multiplied by dimension.The actual range length of the arc of point-to-point transmission great circle (be namely separated by between a longitude) of 2 and this value being not equal to is separated by between a longitude, is larger than it.
Due to longitude and latitude accuracy and professional feature, each side researchs and develops the locator meams of carrying out based on longitude and latitude one after another, as: tag recognition location, bluetooth location, audiolocation, the scene Recognition location etc. such as GPS location, architecture, wifi location, IP location, RFID/ Quick Response Code, to expanding out location technology application market widely.
Orientate example as with GPS, GPS is English GlobalPositioningSystem(GPS) abbreviation, originate in a project of US military in 1958, within 1964, come into operation.20 century 70s, land, sea, and air of U.S. joint research and developments Global Positioning System of new generation.GPS is based on 24 positioning satellite, make the satellite that all can observe more than 4 in the whole world Anywhere, any time, distance between the satellite measuring known location to receiver user, then the data of comprehensive multi-satellite just can know the particular location of receiver.Within the scope of whole sky, find satellite is very poor efficiency, and when therefore being positioned by GPS, first time starts the time that may need several minutes.This is also why we often there will be when using map the circle that first appearance one is large, just can be accurate to the reason of some points afterwards.
The pseudo-code one that gps system uses has two kinds, is civilian C/A code and military P(Y respectively) code.Civilian precision is about 10 meters, and military precision is about 1 meter.The advantage of GPS is radiationless, but penetration power is very weak, cannot penetrate reinforced concrete.Usually under the state will seeing sky in outdoor.When signal is blocked or cuts down, GPS location there will be drift, and cannot use in space that is indoor or that comparatively close, positioning precision depends on real-time satellite signal, and signal acquisition is easily affected by environment.
In addition, also have a kind of widely used localization method to be postcode location, postcode is used to a kind of identifier identifying post delivery point or delivery point group, is made up of set of number or digit strings.In fact, postcode is can the compactest data assemblies of accurately mark mails address of the addressee.
Existing more than 140 countries and regions, the whole world establish postcode system.Universal Postal Union also attaches great importance to postcode and address base work, the postal address operate portions of address standard working group and international office has been set up in 2003, tissue works out postcode and address base and data transmission standard, maintenance and management postal address system and zip database, to promote the development of International mai business.China Post was in the postcode that begins one's study in 1974, and 1977 general post offices of the Nian Yuan Ministry of Posts and Telecommunications issue postcode tentative program and explanation, and beginning in 1980 is applied in the whole nation.
Postcode mainly contains two kinds of forms of expression, is respectively numeric type postcode and alpha-numerical type postcode.
Numeric type postcode is made up of a series of numeral from 0 to 9, is used for identifying administrative region or postal area.The length of postcode is not from 3 to 9 numerals etc.The granularity of the postcode of 5 or less numeral compositions is limited, only can reach district-level or institute of delivery office information one-level.The granularity of usual 7 ~ 9 digit zip code is thinner, can reach delivery point information one-level.When a postcode is digital more than 5, space or punctuation mark usually can be used to be divided into two parts.Because punctuation mark may be misread as numeral by Optical Character Recognition system (OCR), the read false rate of machine sort will be increased.
Alpha-numerical type postcode comprises a series of letter and number, for identifying administrative region or postal area; Digital scope is from 0 to 9, and letter is from A to Z.The Latin alphabet is used to replace numeral that the granularity division of addresses of items of mail can be made to obtain more tiny.Letter and number type postcode mainly contains two types: one is before the numerical coding of postcode, comprises alpha type country code, is an integrated postcode; Two is the postcodes using letter and number type coding, and there is the selection of more than 10 kinds each position; To all types of postcode, once determine coding structure, just need the data implication determining each coding in each case further, and the granularity level of postcode under this mode.The granularity of postcode is thinner, and the area of representative is less.
Postcode essence is also a kind of numerical digit coding location technology, can well locate mail delivery people and the positional information collecting people.But because it only uses in postal scope, therefore the information that comprises of numerical digit is too single, and the regional extent of locating is excessive, often need to coordinate detailed address information just can reach the effect of accurately location, location out of true, usable range is limited.And developing rapidly of express delivery industry, the usable range of postcode is compressed further.
For the problem in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
The object of this invention is to provide a kind of space-location method based on numerical digit coding, can complete the accurate location of specific address and uniquely to express, for the activity such as civil military affairs of conventional accuracy requirement provides positional information.
The object of the invention is to be achieved through the following technical solutions:
Based on a space-location method for numerical digit coding, comprising:
Adopt Descartes's rectangular coordinate system, precalculated position is chosen to be true origin, sets up coordinate system, obtain horizontal ordinate and the ordinate of impact point, generate initial digit coding according to predetermined coding rule, described numerical digit coding comprises area code and address code;
By comparing the longitude and latitude address of coordinate points and initial point, obtain coordinate points along the Ratio for error modification of horizontal ordinate direction distance initial point and the Ratio for error modification along ordinate direction distance initial point, wherein, the direction of horizontal ordinate is identical with parallel tangential direction, and ordinate direction is identical with warp tangential direction;
According to predetermined conversion method, the coding of horizontal ordinate and ordinate is all converted into actual range, by being multiplied with the Ratio for error modification in horizontal ordinate direction by the actual range in horizontal ordinate direction and being multiplied by the Ratio for error modification of the actual range in ordinate direction with ordinate direction, obtain the final coordinate figure of impact point.
Further, described numerical digit coding also comprises administrative region code and height code.
Further, described administrative region code comprises country code and the city codes of the administrative region that impact point is subordinate to.
Further, the defining method of described area code, comprising:
Precalculated position in selected target point region is true origin, is+X-direction, is+Y direction, sets up relative coordinate system with the direct north of initial point, with the coordinate figure of sexadecimal complement representation impact point with the direction, due east of initial point.
Further, described sexadecimal area code comprises 8bit, 16bit and 32bit tri-kinds of length, cover the region of 15Km2,255Km2 and 4095Km2 respectively, wherein, the first bit of sexadecimal area code is sign bit, further, the unitary code spacing of sexadecimal area code is converted into actual range 1Km.
Further, the defining method of described address code, comprising:
Precalculated position in selected target point region is true origin, be+X-direction with the direction, due east of initial point, be+Y direction with the direct north of initial point, set up relative coordinate system, the coordinate figure of impact point is represented with decimal code, wherein, the unitary code spacing of described decimal code is converted into actual range 10m.
Further, described height code comprises absolute altitude code and relative height code.
Beneficial effect of the present invention is: the present invention can according to the relative position of initial point and coordinate points, calculate the Ratio for error modification of initial digit coding, thus error correction is carried out to initial digit coding, obtain accurate numerical digit coding, and then complete the accurate location of certain locus and uniquely to express, obtain precise positioning information continually and steadily; In addition, encoded particles degree can consider code length and user's routine use demand is freely arranged, and uses flexibility ratio higher; Contribute to solving the problems such as the area navigation, emergency management and rescue, the personnel that face when day by day accelerating in people zone of action expanding day, urbanization process search and rescue, transport delivery, Police Information management, city planning, for the activity such as civil military affairs of conventional accuracy requirement provides positional information.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the space-location method process flow diagram based on numerical digit coding according to the embodiment of the present invention;
Fig. 2 is the area code schematic diagram of three kinds of length according to the embodiment of the present invention;
Fig. 3 is the coordinate system schematic diagram corresponding according to the area code of the 8bit length of the embodiment of the present invention;
Fig. 4 is the coordinate system schematic diagram corresponding according to the address code of the embodiment of the present invention;
Fig. 5 calculates schematic diagram according to the Ratio for error modification of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
As Figure 1-5, a kind of space-location method based on numerical digit coding according to embodiments of the invention, comprising:
Step one: adopt Descartes's rectangular coordinate system; precalculated position is chosen to be true origin, sets up coordinate system, obtain horizontal ordinate and the ordinate of impact point; generate initial digit coding according to predetermined coding rule, described numerical digit coding comprises area code and address code;
Step 2: by comparing the longitude and latitude address of coordinate points and initial point, obtains coordinate points along the Ratio for error modification of horizontal ordinate direction (i.e. parallel tangential direction) distance initial point and the Ratio for error modification along ordinate direction (i.e. warp tangential direction) distance initial point;
Step 3: according to predetermined conversion method, the coding of horizontal ordinate and ordinate is all converted into actual range, by being multiplied with the Ratio for error modification in horizontal ordinate direction by the actual range in horizontal ordinate direction and being multiplied by the Ratio for error modification of the actual range in ordinate direction with ordinate direction, obtain the final coordinate figure of impact point.
Described numerical digit coding also comprises administrative region code and height code, the concrete manifestation form of numerical digit coding is: (administrative region code) area code address code (height code), area code and address code are indispensable section, administrative region code and height code are optional section, can omit according to user's user demand.
Administrative region code: represent the administrative information region comprising certain geographic position (impact point) and be subordinate to, comprise country code and the city codes of the administrative region that impact point is subordinate to, country code employing " ISO3166 country three alphanumeric codes " or correlated expression, city codes adopts " GB-T2260 administrative regional division of the People's Republic of China code " or correlated expression.As, Beijing can be expressed as CHNPEK.Conveniently use, when do not cause obscure, as used coding to position in same city scope, then can omit corresponding administrative region code.
Area code: represent that, in the scope of administrative area field code definition, certain geographic position (impact point) is information relative to the side of appointed area true origin.The defining method of area code is: the precalculated position in selected target point region is true origin, be+X-direction with the direction, due east of initial point, be+Y direction with the direct north of initial point, set up relative coordinate system, with the coordinate figure of sexadecimal complement representation impact point, precalculated position can be geographic center or the landmark of administrative region, impact point place, described sexadecimal area code comprises 8bit, 16bit and 32bit tri-kinds of length, cover 15Km2 respectively, the region of 255Km2 and 4095Km2, wherein, the first bit of sexadecimal area code is sign bit, and, the unitary code spacing of sexadecimal area code is converted into actual range 1Km.
Address code: represent the concrete orientation of impact point in its region, the defining method of described address code is: the precalculated position in selected target point region is true origin, be+X-direction with the direction, due east of initial point, be+Y direction with the direct north of initial point, set up relative coordinate system, represent the coordinate figure of impact point with decimal code, the unitary code spacing of described decimal code is converted into actual range 10m.
Described height code has two kinds of expression-forms: absolute altitude code and relative height code.
Absolute altitude code: the altitude info ination representing current located sites (impact point), this form can be widely used in the project fields such as Aeronautics and Astronautics, outdoor travel, field rescue;
Relative height code: represent the distance of current located sites (impact point) relative to the pedal line direction of its land, location plane, this distance can be on the occasion of, also can be negative value, on the occasion of representing the height relative to land plane, negative value represents the degree of depth relative to land plane.The project fields such as this form can be applicable to city management, floor represents, subsurface investigation, Urban Search and Rescue, the disaster relief.
Height code can use true altitude to represent, use metric measure, unit is " rice ".
Continue with reference to Fig. 5, calculate correction factor: because earth surface is a sphere, therefore using said method to calculate, distance between earth surface 2 is unavoidable there is error, and actual range between 2 is larger, then error is larger.This patent proposes the concept of error coefficient, respectively the measurement point horizontal ordinate using said method to draw and ordinate value is multiplied by respective error coefficient, can obtains reality coordinate figure accurately.Provide the method for solving of error coefficient below:
Ratio for error modification along warp direction (ordinate) distance initial point:
With the method establishment coordinate system introduced in step 2.Wherein O is initial point, and A is measurement point, and NA is the projection of A point on N axle, the intersection point that NA ' is longitude face, O point place and dimension face, A point place.
If ONA ' arc length is L, then:
Wherein, Δ α is that NA ' and O point dimension is poor, and R is earth radius.
If ONA is long is S, then:
If P is ordinate Ratio for error modification, then:
Ratio for error modification along weft direction (horizontal ordinate) distance initial point:
With the method establishment coordinate system introduced in step 2.Wherein O is initial point, and A is measurement point, and EA is the projection of A point on E axle, the intersection point that EA ' is dimension face, O point place and longitude face, A point place.
If OEA ' arc length is M, then:
Wherein, Δ β is EA ' and O point difference of longitude, and R is earth radius, and α O is O point dimension values.
If OEA is long is S, then:
If Q is horizontal ordinate Ratio for error modification, then:
According to the initial digit coding that step one generates, impact point can be known in the coordinate of city relative to the horizontal ordinate of initial point and ordinate, be converted into apart from rear respectively with calculated obtained Ratio for error modification by step 2 and be multiplied, namely obtain impact point coordinate figure accurately, and then the coding that step 2 generates is revised.
For north gate, Fragrant Hill Park, first, Tian An-men central point is set to initial point and sets up coordinate system, unit gap 1km.North gate, Fragrant Hill Park horizontal ordinate more than 15km, so get 16bit bit length.Region according to place, north gate, Fragrant Hill Park is learnt, its area code is FFFE000A; With the southwest corner, 1km region at place, north gate, Fragrant Hill Park for initial point sets up coordinate system, then the address code of north gate, Fragrant Hill Park is 3216; North gate, Fragrance Hill height above sea level 108 meters, so its height code not 108; So north gate, Fragrant Hill Park is encoded to relative to the initial digit of Tian An-men central point: CHNPEKFFFE000A3216108.
Secondly, correction factor is calculated.Through recording, the longitude and latitude at center, Tian An-men is: north latitude N39 ° 54 ' 26 ", east longitude E116 ° 23 ' 28 "; The longitude and latitude of north gate, Fragrant Hill Park is: north latitude N39 ° 59 ' 39 ", east longitude E116 ° 11 ' 19 ".So, Δ α=0.087 °, Δ β=0.203 °.
According to formula (1):
Along the Ratio for error modification of warp direction (ordinate) distance initial point
According to formula (2):
Along the Ratio for error modification of weft direction (horizontal ordinate) distance initial point
Last error correction.Because north gate, Fragrant Hill Park and Tian An-men center position are separated by comparatively near, error is minimum, therefore can ignore.
Therefore, north gate, Fragrant Hill Park is encoded to relative to the numerical digit of Tian An-men central point: CHNPEKFFFE000A3216108.
In sum, by means of technique scheme of the present invention,
1, continual and steady acquisition precise positioning information;
Location technology conventional is at present mainly based on global position system, and positioning precision depends on real-time satellite signal, and signal acquisition is easily affected by environment, cannot ensure accurate precision at any time when concrete use.Use the present invention introduce numerical digit coding position expression, and by Ratio for error modification to generation error revise, acquisition that can be continual and steady is to the accurate location of anywhere.
2, encoded particles degree can freely be arranged;
It is 10 meters that the unitary code granularity of the address code of giving in the present invention expresses spacing, is consider code length and user's routine use demand and determine.If there is more high-precision user demand, or not high to granularity size requirements, then only need modified application bit code spacing size definition.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1., based on a space-location method for numerical digit coding, it is characterized in that, comprising:
Adopt Descartes's rectangular coordinate system, precalculated position is chosen to be true origin, sets up coordinate system, obtain horizontal ordinate and the ordinate of impact point, generate initial digit coding according to predetermined coding rule, described numerical digit coding comprises area code and address code;
By comparing the longitude and latitude address of coordinate points and initial point, obtain coordinate points along the Ratio for error modification of horizontal ordinate direction distance initial point and the Ratio for error modification along ordinate direction distance initial point, wherein, the direction of horizontal ordinate is identical with parallel tangential direction, and ordinate direction is identical with warp tangential direction;
According to predetermined conversion method, the coding of horizontal ordinate and ordinate is all converted into actual range, by being multiplied with the Ratio for error modification in horizontal ordinate direction by the actual range in horizontal ordinate direction and being multiplied by the Ratio for error modification of the actual range in ordinate direction with ordinate direction, obtain the final coordinate figure of impact point.
2. the space-location method based on numerical digit coding according to claim 1, is characterized in that, described numerical digit coding also comprises administrative region code and height code.
3. the space-location method based on numerical digit coding according to claim 2, it is characterized in that, described administrative region code comprises country code and the city codes of the administrative region that impact point is subordinate to.
4. the space-location method based on numerical digit coding according to claim 3, it is characterized in that, the defining method of described area code, comprising:
Precalculated position in selected target point region is true origin, is+X-direction, is+Y direction, sets up relative coordinate system with the direct north of initial point, with the coordinate figure of sexadecimal complement representation impact point with the direction, due east of initial point.
5. the space-location method based on numerical digit coding according to claim 4, it is characterized in that, described sexadecimal area code comprises 8bit, 16bit and 32bit tri-kinds of length, cover the region of 15Km2,255Km2 and 4095Km2 respectively, wherein, the first bit of sexadecimal area code is sign bit, and the unitary code spacing of sexadecimal area code is converted into actual range 1Km.
6. the space-location method based on numerical digit coding according to claim 5, it is characterized in that, the defining method of described address code, comprising:
Precalculated position in selected target point region is true origin, be+X-direction with the direction, due east of initial point, be+Y direction with the direct north of initial point, set up relative coordinate system, the coordinate figure of impact point is represented with decimal code, wherein, the unitary code spacing of described decimal code is converted into actual range 10m.
7. the space-location method based on numerical digit coding according to claim 6, it is characterized in that, described height code comprises absolute altitude code and relative height code.
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| CN107608670A (en) * | 2016-07-12 | 2018-01-19 | 深圳联友科技有限公司 | The method and system that a kind of form UI elements are adaptively shown |
| CN107741982A (en) * | 2017-10-18 | 2018-02-27 | 江明华 | A kind of coordinate and administrative region matching system and method |
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| CN109597922A (en) * | 2019-01-03 | 2019-04-09 | 安徽华米信息科技有限公司 | Time zone determines method, apparatus, wearable device and system |
| CN110290456A (en) * | 2019-05-20 | 2019-09-27 | 深圳壹账通智能科技有限公司 | The localization method and device of target object |
| CN114490895A (en) * | 2021-11-10 | 2022-05-13 | 谢开章 | Front-end interface-based description address acquisition method and system and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107608670A (en) * | 2016-07-12 | 2018-01-19 | 深圳联友科技有限公司 | The method and system that a kind of form UI elements are adaptively shown |
| CN107608670B (en) * | 2016-07-12 | 2020-12-08 | 深圳联友科技有限公司 | Method and system for self-adaptive display of report UI (user interface) elements |
| CN107741982A (en) * | 2017-10-18 | 2018-02-27 | 江明华 | A kind of coordinate and administrative region matching system and method |
| CN109035474A (en) * | 2018-07-27 | 2018-12-18 | 国网江苏省电力有限公司苏州供电分公司 | Method for inspecting and system based on two dimensional code |
| CN109597922A (en) * | 2019-01-03 | 2019-04-09 | 安徽华米信息科技有限公司 | Time zone determines method, apparatus, wearable device and system |
| CN109597922B (en) * | 2019-01-03 | 2023-02-28 | 北京顺源开华科技有限公司 | Time zone determination method, time zone determination device, wearable equipment and time zone determination system |
| CN110290456A (en) * | 2019-05-20 | 2019-09-27 | 深圳壹账通智能科技有限公司 | The localization method and device of target object |
| CN114490895A (en) * | 2021-11-10 | 2022-05-13 | 谢开章 | Front-end interface-based description address acquisition method and system and electronic device |
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