CN103022725A - Device for performing one-dimensional positioning on antenna array and active substance to be tested - Google Patents
Device for performing one-dimensional positioning on antenna array and active substance to be tested Download PDFInfo
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- CN103022725A CN103022725A CN2012105025311A CN201210502531A CN103022725A CN 103022725 A CN103022725 A CN 103022725A CN 2012105025311 A CN2012105025311 A CN 2012105025311A CN 201210502531 A CN201210502531 A CN 201210502531A CN 103022725 A CN103022725 A CN 103022725A
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Abstract
The invention discloses an antenna array, which comprises multiple array element groups, wherein each array element group comprises at least one antenna array element; each antenna array element in the same array element group has the same direction; and each array element group has different inclined angles, so that the array element group is aligned with different places in the one-dimensional direction. According to the method for performing one-dimensional positioning on the active substance to be tested through the antenna array, the intensity of the real-time position signal received by each array element group is compared, and the substance to be tested is positioned in real time. Because the array element groups belong to the same antenna array, the distance from the substance to be tested to each array element group is the same, distance difference between the substance to be tested and each array element group is avoided during real-time positioning, and the calculation is simple; and moreover, each array element group is convenient to mount, adjust and operate.
Description
Technical field
The invention relates to aerial array, is specifically related to arranging of bay; The invention also relates to the method for active determinand being carried out the one dimension location, and all or part of step wherein can by setting up functional module construction, be finished by computer program instructions control computer system.These computer program instructions are stored in the computer-readable recording medium.
Background technology
For ground active determinand being carried out real-time one dimension location, technology according to the amplitude location must adopt a plurality of aerial arrays to cover respectively the different location that one-dimensional square makes progress at present, it is embodied as originally higher, calculation of complex, and aerial array is installed and is regulated inconvenience.
Summary of the invention
The purpose of the invention is only with an aerial array ground active determinand to be carried out real-time one dimension location, and location Calculation is simple in real time, and it is convenient that aerial array is installed Adjustment operation.
The invention provides aerial array, comprise a plurality of array element groups, each array element group comprises at least one bay, each bay direction is identical in the same array element group, each array element group is coaxial but the angle of inclination different, and the angle of inclination can be adjusted to make each array element group respectively over against at one-dimensional square to the different location that equal intervals is arranged, the axle that each array element group shares is level.
The principle of the aerial array that the invention is given is, each array element group is respectively over against different location that one-dimensional square makes progress, so when determinand sends a real time position signal, directional characteristic according to antenna, over against the place from the array element group of determinand close to more, the real time position signal that it receives is just stronger, therefore only needs the intensity of the received real time position signal of each array element group relatively can realize real-time location to determinand.
On this basis, the invention provides uses this aerial array active determinand to be carried out the method for one dimension location, and the intensity by the received real time position signal of each array element group relatively realizes the real-time location to determinand.Wherein, each the array element group in the aerial array is coaxial, and the axle that each array element group shares is level, and each array element group angle of inclination is adjustable, each array element group over against technical characterictic is optional can not select to equal intervals arrangement etc. at one-dimensional square in the place.
The beneficial effect of the invention is, because these array element groups belong on the same day linear array, so: determinand is equal to each array element group distance, and there is not range difference in determinand to each array element group when locating in real time, calculates simple; The installation Adjustment operation of each array element group is convenient.
The method that the invention provides carries out real-time one dimension location is further:
Every two adjacent described places have been arranged received signal strength difference limen value, and two adjacent places are less to the ground projector distance of the aerial array received signal strength difference limen value that then arranges far away;
When carrying out real-time one dimension location, the same real time position signal that is sent by determinand that input is received separately in real time by each array element group, in the middle of the real time position signal of inputting, find out the strongest two, then receive these two real time position signals two array element groups over against two places upwards be adjacent at one-dimensional square, then take the difference of these two real time position signals with arranging the received signal strength difference limen value to these two places to compare:
If the difference of two real time position signals is greater than received signal strength difference limen value, mean that determinand is partial to one of them place significantly, particularly, deflection receive in the middle of these two real time position signals than powerhouse's array element group over against the place, so just determinand is positioned to receive this than powerhouse's array element group over against the place;
If the difference of two real time position signals is less than received signal strength difference limen value, mean that determinand is more or less the same to the distance in these two places, relatively near the mid point take these two places as the line segment of two-end-point, so just determinand is positioned the mid point of this line segment.The factor that received signal strength difference limen value need consider is set is, two adjacent places from aerial array more away from, the differential seat angle of real time position signal and each array element group is less, the difference of two real time position signals is just less, therefore in the given method of carrying out real-time one dimension location of the invention, two adjacent places are less to the ground projector distance of the aerial array received signal strength difference limen value that then is arranged far away.
By arranging and utilizing above-mentioned received signal strength difference limen value, positioning accuracy can reach half distance between adjacent two described places.
For method is converted to functional module, below with the above-mentioned further part arrangement of active determinand being carried out the method for one dimension location be:
Every two adjacent described places have been arranged received signal strength difference limen value, and two adjacent places are less to the ground projector distance of the aerial array received signal strength difference limen value that then is arranged far away;
When carrying out real-time one dimension location, the same real time position signal that is sent by determinand that input is received separately in real time by each array element group, in the middle of the real time position signal of inputting, find out the strongest two, then receive these two real time position signals two array element groups over against two places upwards be adjacent at one-dimensional square, then take the difference of these two real time position signals with arranging the received signal strength difference limen value to these two places to compare:
If the difference of two real time position signals greater than received signal strength difference limen value, just determinand is positioned to receive in the middle of these two real time position signals than powerhouse's array element group over against the place;
If the difference of two real time position signals less than received signal strength difference limen value, just is positioned determinand the mid point take these two places as the line segment of two-end-point.
Carry out the method for real-time one dimension location further, two adjacent places are taken as to the ground projector distance of aerial array: the mid point take these two places as the line segment of two-end-point is to the ground projector distance of aerial array.
What the invention was given carries out the method that one dimension is located to active determinand, and all or part of step wherein can by setting up functional module construction, be finished by computer program instructions control computer system.These computer program instructions are stored in the computer-readable recording medium.
Description of drawings
Fig. 1 is the position relationship schematic diagram in the place that makes progress of aerial array and one-dimensional square.
Embodiment
Such as Fig. 1, aerial array comprises array element group A, B, C, D, and each array element group shares the rotating shaft of a level.Each array element group comprises at least one bay, and each bay direction is identical in the same array element group.By regulating the angle of inclination of each array element group, make array element group A over against place a, array element group B is over against place b, and array element group C is over against place c, and array element group D is over against place d.Make progress at one-dimensional square, place a, b, c, d are respectively 2m, 4m, 6m, 8m to the ground projector distance of aerial array.The aerial array height is 5.5m.
Before locating in real time, be first that adjacent place a, b arranges received signal strength difference limen value 3dB, for adjacent place b, c arrange received signal strength difference limen value 2dB, for adjacent place c, d arrange received signal strength difference limen value 1dB.
When carrying out real-time one dimension location, suppose to have a determinand 1 to send a real time position signal, array element group A, B, C, D receives this real time position signal separately in real time, the real time position signal strength signal intensity that array element group A receives is-67.3dBm, the real time position signal strength signal intensity that array element group B receives is-50.1dBm, the real time position signal strength signal intensity that array element group C receives is-44.1dBm, the real time position signal strength signal intensity that array element group D receives is-46.6dBm, as seen, array element group C, the real time position signal that D receives is that this is wherein the strongest two, this two real time position signals poor | and-44.1dBm-(46.6dBm) |=2.5dB, greater than arranging to place c, the received signal strength difference limen value 1dB of d, and among these two real time position signals, real time position signal-44.1dBm that array element group C receives is stronger, this means that determinand 1 is partial to place c significantly, so determinand 1 is positioned place c, namely determinand 1 is 6m to the ground projector distance of aerial array.
When carrying out real-time one dimension location, suppose to have a determinand 2 to send a real time position signal, array element group A, B, C, D receives this real time position signal separately in real time, the real time position signal strength signal intensity that array element group A receives is-65.6dBm, the real time position signal strength signal intensity that array element group B receives is-44.3dBm, the real time position signal strength signal intensity that array element group C receives is-43.6dBm, the real time position signal strength signal intensity that array element group D receives is-50.0dBm, as seen, array element group B, the real time position signal that C receives is that this is wherein the strongest two, this two real time position signals poor | and-44.3dBm-(43.6dBm) |=0.7dB, less than arranging to place b, the received signal strength difference limen value 2dB of c, mean that determinand 2 is to place b, the distance of c is more or less the same, relatively more close with place b, c is the mid point of the line segment bc of two-end-point, so just determinand 2 is positioned the mid point of line segment bc, namely determinand 1 is 5m to the ground projector distance of aerial array.
In the present embodiment, two adjacent described places 2m of being separated by, by arrange and utilize above-mentioned received signal strength difference limen value, positioning accuracy reach between adjacent two places half apart from 1m.
Among Fig. 1, place a, b, c, d are positioned at the same side of aerial array.If each place is distributed in the both sides of aerial array, then when getting two adjacent places to the ground projector distance of aerial array, be as the criterion with the ground projector distance of the mid point take these two places as the line segment of two-end-point to aerial array, certainly, Fig. 1 also can get two adjacent places like this to the ground projector distance of aerial array.
The method that this paper provides, all or part of step wherein can by setting up functional module construction, be finished by computer program instructions control computer system.These computer program instructions are stored in the computer-readable recording medium.
Claims (8)
1. aerial array is characterized in that, comprises a plurality of array element groups, and each array element group comprises at least one bay, and each bay direction is identical in the same array element group, each array element group but the angle of inclination is different, thereby respectively over against different location that one-dimensional square makes progress.
2. aerial array according to claim 1 is characterized in that, each array element group is coaxial.
3. aerial array according to claim 1 is characterized in that, the axle that each array element group shares is level.
4. aerial array according to claim 1 is characterized in that, each array element group angle of inclination is adjustable.
5. according to claim 1,2,3 or 4 described aerial arrays, it is characterized in that, each array element group over against the place arrange to equal intervals at one-dimensional square.
6. right to use requires 1 to 5 each described aerial array active determinand to be carried out the device of one dimension location, it is characterized in that, comprise the intensity comparison means, it realizes the real-time location to determinand by the intensity of the received real time position signal of each array element group relatively.
7. the device that active determinand is carried out one dimension location according to claim 6:
Every two adjacent described places have been arranged received signal strength difference limen value, and two adjacent places are less to the ground projector distance of the aerial array received signal strength difference limen value that then is arranged far away;
Described intensity comparison means comprises:
Input unit, its when carrying out real-time one dimension location, the same real time position signal that is sent by determinand that input is received separately in real time by each array element group,
Find out device, it finds out the strongest two in the middle of the real time position signal of inputting, then receive these two real time position signals two array element groups over against two places upwards be adjacent at one-dimensional square,
The threshold value comparison means, its difference of then taking these two real time position signals is with arranging the received signal strength difference limen value to these two places to compare:
If the difference of two real time position signals greater than received signal strength difference limen value, just determinand is positioned to receive in the middle of these two real time position signals than powerhouse's array element group over against the place;
If the difference of two real time position signals less than received signal strength difference limen value, just is positioned determinand the mid point take these two places as the line segment of two-end-point.
8. the device that active determinand is carried out one dimension location according to claim 7, two adjacent places are taken as to the ground projector distance of aerial array: the mid point take these two places as the line segment of two-end-point is to the ground projector distance of aerial array.
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| CN107883959A (en) * | 2017-10-31 | 2018-04-06 | 西安交通大学 | More people's localization methods in a kind of WiFi rooms based on phased array principle |
| CN114967843A (en) * | 2022-03-31 | 2022-08-30 | Oppo广东移动通信有限公司 | Terminal accessory, electronic equipment and positioning method |
| CN116381754A (en) * | 2023-03-09 | 2023-07-04 | 广州市泰粤科技股份有限公司 | Beidou differential 360-degree intelligent monitoring system and method for large crane |
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| CN116381754A (en) * | 2023-03-09 | 2023-07-04 | 广州市泰粤科技股份有限公司 | Beidou differential 360-degree intelligent monitoring system and method for large crane |
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| CN103022725B (en) | 2014-10-22 |
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