CN102401890A - Method of using multidimensional graphs to locate signal emitter according to radio signal intensity - Google Patents
Method of using multidimensional graphs to locate signal emitter according to radio signal intensity Download PDFInfo
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- CN102401890A CN102401890A CN2010102845396A CN201010284539A CN102401890A CN 102401890 A CN102401890 A CN 102401890A CN 2010102845396 A CN2010102845396 A CN 2010102845396A CN 201010284539 A CN201010284539 A CN 201010284539A CN 102401890 A CN102401890 A CN 102401890A
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- 230000005684 electric field Effects 0.000 claims abstract description 12
- 239000003086 colorant Substances 0.000 claims abstract description 5
- 238000011002 quantification Methods 0.000 claims description 4
- 238000012163 sequencing technique Methods 0.000 claims description 3
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- 238000012545 processing Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
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Abstract
The invention relates to a method of using multidimensional graphs to locate a signal emitter according to radio signal intensity, which solves the problems of slow locating speed, difficulty in determining and poor accuracy of existing methods. Steps of generating histograms in a display include: firstly, acquired radio signals enter a receiver through a directional antenna, the radio signals are quantified by the receiver in a unit of electric field strength prior to being transmitted to a microprocessor, the microprocessor reads data of quantified radio signals from the receiver, and the datum are stored in a cache region of a storage unit in sequence, secondly, the data of quantified radio signals fully filling the cache region are read by the microprocessor for drawing the histograms of different heights and in different colors on the display screen, thirdly, adjacent two data are merged when the cache region is fully filled with the quantified radio signals, the halved merged data are re-filled into the original cache region, newly acquired data are also filled into the cache region, and the second step, the third step and the fourth step are repeated when the cache is fully filled again. When the histograms in the display screen grow highest and darkest, a radio signal emitter is near finally.
Description
Technical field:
The present invention is relevant with wireless direction finding method, and is especially relevant with the method for searching the short-range radio signal emitting-source.
Background technology:
When tradition is searched the short-range radio signal emitting-source user is had relatively high expectations, require the user of service to judge distance from the radio signal emissive source through the characteristic of field intensity reading on the observation receiver or monitoring reception equipment demodulation sound.Before a kind of shortcoming of mode be that the user is difficult for seeing the reading on the receiver clearly in fast moving, and do not have to keep the maximum data value of adopting as the peak value reference, cause difficult judgment.The latter's shortcoming is to require the user to have long-term use experience just can draw judgement comparatively accurately.
Summary of the invention:
The purpose of this invention is to provide a kind of easy and simple to handle, the location fast, what positional accuracy was high uses the method for multidimensional figure location, signal emitting-source according to radio signal strength.
The present invention is achieved in that
The present invention uses the method for multidimensional figure positioning signal emissive source according to radio signal strength; Directional antenna is connected with receiver through radio-frequency cable; Receiver is connected with microprocessor through control line; Microprocessor is connected with display, memory, and the step that in display, produces X-Y scheme is following:
(1) the hand-held directional antenna of user; The wireless signal of gathering gets into receiver by directional antenna, and receiver is sent to microprocessor after with electric field intensity unit wireless signal being quantized, and microprocessor reads from receiver and quantizes the wireless signal data; Put into the buffer zone of memory according to sequencing
(2) the quantification wireless signal data that will fill up in the buffer zone of little processing are read; On display screen, draw out the histogram of differing heights and different colours, each quantizes the corresponding histogram independently of wireless signal data in the buffer zone, and data are big more; Corresponding histogram is high more; Data are big more, and corresponding histogram color is dark more
(3) after quantification wireless signal data are filled up in the memory buffer zone, adjacent two data are merged, the principle of merging is the higher value of choosing in two data; The deletion smaller value; The data that reduced by half after merging are inserted former buffer zone again, and insert the data value of new collection, after filling up buffer zone once more; Repeating step 2,3
(4) histogram in display screen becomes the highest, when the darkest, shows finally near the wireless signal transmission source.
In the step 2; All histogram width are consistent; Histogrammic 1 pixels tall representes that 0.1dB quantizes the wireless signal size of data; Histogram less than the data of 65dB is a white, be yellow more than or equal to 65dB and less than the histogram of the data of 75dB, is redness greater than the histogram of the data of 75dB.
System for use in carrying of the present invention is simple in structure, and is easy to operate, searches emissive source according to the figure in the display, fast, intuitively.The present invention can guarantee that the user sees when moving with antenna from screen; The size fluctuating trend of signal; The maximum data value of adopting in the time of keeping from the test beginning again is as the peak value reference, and accuracy of judgement can't be realized such function and effect only according to existing receiver.The data presentation or the single bar chart that are different from other direction-finding equipments show; Direction-finding system of the present invention is through certain bar number, differing heights, histogram different colours, that constantly roll and refresh; Show the current time dependent situation of intensity of surveying signal quickly and intuitively, be well suited under the physical environment of complicacy seeking the closely location occasion of radio-signal source through the mode of fast moving.
Description of drawings:
Fig. 1 is hand-held direction-finding system structural drawing.
Fig. 2 is the microprocessor block diagram.
Fig. 3 is data handling procedure figure.
Embodiment:
Casing 11 positive left sides have display 5, the right side keyboard 6 to be arranged along the casing long axis; Casing 11 frontal left have antenna, electronics angle gauge data-interface 8, radio receiver data-interface 7 and the COBBAIF 3 of GPS receiver module 9; There is power supply 10 at the casing back side; Microprocessor 1 and storer 2, Storage Card Drivers device 4, display 5, keyboard 6 are arranged on the circuit board in the casing; Radio receiving equipment data-interface 7, electronics angle gauge data-interface 8 is connected with GPS receiver module 9, and power supply 10 is connected with the radio receiver data-interface with keyboard 6, display 5, COBBAIF 3, GPS receiver module 9, electronics angle gauge data-interface 9 respectively; Keyboard 6 is connected with COBBAIF with Storage Card Drivers device 4, storer 2, and radio receiver data-interface 7 is connected with radio receiver through cable with electronics angle gauge data-interface.
Microprocessor 1 is the S3C2440 chip; Storer 2 is the HY57V56120 chip, and COBBAIF 3 is the UDA1341TS chip, and radio receiver data-interface 7 is the LAN interface of CS8900A ethernet controller control; Electronics angle gauge data-interface 8 is the UART2 interface of S3C2440 chip; The GPS receiver module is the GR-87 chip, and display 5 has liquid crystal touch screen, and electronics angle gauge data-interface 8 is an Aviation Connector with radio receiver data-interface 7.
Microprocessor 1, storer 2, COBBAIF 3, Storage Card Drivers device 4, display 5, keyboard 6, radio receiver data-interface 7, electronics angle gauge data-interface 8, GPS receiver module (containing antenna) 9, power supply 10 all are assembled in the casing 11; Each forms the connection and reasonable arrangement of device, is convenient to observe, operate and carry.
The peripheral hardware cable interface is positioned at the frontal left of processor casing, is convenient to when this device is worn over left finesse, and left arm, the shoulder of equipment cable from treating apparatus along the operator linked the receiving equipment the knapsack.
Input keyboard is positioned at the right of display on the casing, is convenient to button operation.
Display is positioned at the left side of display on the casing, is convenient to observe display message.
The Storage Card Drivers device is positioned at the right side of processor casing, is convenient to the operation that plugs and unplugs of storage card.
Keyboard and touch-screen are simultaneously available.
Using hand held antenna to search under the situation of signal source closely, the invention provides patterned fade effect, represent that with mode intuitively antenna leaves the distance of signal source.Microprocessor is connected to receiver, through open communication protocol receiver control, constantly to read the intensity level that receiver is collected by directional antenna at a high speed.And on software interface with the intensity of the color showing signal of the height of column Nogata figure and different depth, and As time goes on merge existing, keep maximal value as reference.Along with antenna is more and more nearer from the distance of radio signal emissive source, histogram deformation is high, redden, and reminds the user.The present invention replaces utilization and reads field intensity numerical value and monitor the traditional approach that the short-range radio signal emitting-source is searched in the audio frequency variation, has reduced the requirement to user's correlation experience, has improved seek rate and precision greatly.
The method of closely searching signal emitting-source with patterned way is following:
1) wireless signal gets into receiver by directional antenna, and receiver quantizes signal with electric field intensity unit (dB), and the electric field intensity data after will quantizing through netting twine pass to microprocessor.Microprocessor reads the electric field intensity data with the speed of per second 5-10 time from receiver, and puts into the buffer zone of memory according to sequencing.
2) after the user starts test, along with the user moves directional antenna signal is on every side carried out stochastic sampling, represent this sampling process with patterned mode.From buffer zone, read the data of having preserved, on display screen, from left to right draw out the Nogata figure of differing heights and different colours, all corresponding Nogata figure independently of each electric field intensity data in the buffer zone according to following rule.The electric field intensity data are big more, corresponding Nogata figure high more (all Nogata graphic widths are all consistent), and color is eye-catching more.
The rule of graphing is:
● the electric field intensity size of data is corresponded to the pixels tall on the display interface, and 1 pixel is represented the size of data of 0.1dB, so the electric field intensity data are big more, and the Nogata figure of depicting is just high more;
● and come the pattern filling color, the Nogata figure is filled to white, the Nogata figure is filled to yellow, the Nogata figure is filled to redness greater than the signal of 75dB more than or equal to 65dB and less than the signal of 75dB less than the signal of 65dB through the mode of classification.
3) after the electric field intensity data that collect are filled up core buffer, the mode of taking to merge is in twos carried out the data merging.If the data in EMS memory buffer size is N, then data 1 and data 2 merging, data 3 and data 4 are merged ... Data N-1 and data N merge.The principle that merges is for getting higher value, like data 1 less than data 2,2 the value of fetching data when then merging.N/2 data values after merging is inserted former buffer zone again, and a data bit begins to put into successively the new data value of gathering in back from (N/2)+1.After filling up buffer zone once more, repeat this step.By aforesaid way can because what when merging in twos, take is to get the higher value principle, therefore, in any case merge, the peak signal of having adopted still can remain as peaked reference.
4) after finally near the radio signal emissive source, it is maximum that the electric field intensity data that read from receiver in real time can reach, and representative has reached signal peak (the most approaching from the radio signal emissive source).The Nogata figure that shows as this time on directly perceived can become the highest, color is the most eye-catching, and can't become higher again.
Claims (2)
1. use the method for multidimensional figure positioning signal emissive source according to radio signal strength; It is characterized in that directional antenna passes through radio-frequency cable and is connected with receiver; Receiver is connected with microprocessor through control line; Microprocessor is connected with display, memory, and the step that in display, produces X-Y scheme is following:
(1) the hand-held directional antenna of user; The wireless signal of gathering gets into receiver by directional antenna, and receiver is sent to microprocessor after with electric field intensity unit wireless signal being quantized, and microprocessor reads from receiver and quantizes the wireless signal data; Put into the buffer zone of memory according to sequencing
(2) the quantification wireless signal data that will fill up in the buffer zone of little processing are read; On display screen, draw out the histogram of differing heights and different colours, each quantizes the corresponding histogram independently of wireless signal data in the buffer zone, and data are big more; Corresponding histogram is high more; Data are big more, and corresponding histogram color is dark more
(3) after quantification wireless signal data are filled up in the memory buffer zone, adjacent two data are merged, the principle of merging is the higher value of choosing in two data; The deletion smaller value; The data that reduced by half after merging are inserted former buffer zone again, and insert the data value of new collection, after filling up buffer zone once more; Repeating step (2), (3)
(4) histogram in display screen becomes the highest, when the darkest, shows finally near the wireless signal transmission source.
2. method according to claim 1; It is characterized in that in the step (2); All histogram width are consistent, and histogrammic 1 pixels tall representes that 0.1dB quantizes the wireless signal size of data, be white less than the histogram of the data of 65dB; More than or equal to 65dB and less than the histogram of the data of 75dB is yellow, be redness greater than the histogram of the data of 75dB.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102845396A CN102401890B (en) | 2010-09-17 | 2010-09-17 | Method of using multidimensional graphs to locate signal emitter according to radio signal intensity |
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| CN2010102845396A CN102401890B (en) | 2010-09-17 | 2010-09-17 | Method of using multidimensional graphs to locate signal emitter according to radio signal intensity |
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| CN102401890B CN102401890B (en) | 2013-11-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607401A (en) * | 2003-07-22 | 2005-04-20 | 微软公司 | Method for determining the approximate location of a device from ambient signals |
| US20080231496A1 (en) * | 2007-03-20 | 2008-09-25 | Denso Corporation | Method for determining noise floor level and radar using the same |
| CN201191319Y (en) * | 2008-05-15 | 2009-02-04 | 马方立 | Semi-automatic radio direction measuring machine |
| CN201397511Y (en) * | 2009-04-23 | 2010-02-03 | 恒隆科技股份有限公司 | Antenna separated type hand-held data searching device |
-
2010
- 2010-09-17 CN CN2010102845396A patent/CN102401890B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607401A (en) * | 2003-07-22 | 2005-04-20 | 微软公司 | Method for determining the approximate location of a device from ambient signals |
| US20080231496A1 (en) * | 2007-03-20 | 2008-09-25 | Denso Corporation | Method for determining noise floor level and radar using the same |
| CN201191319Y (en) * | 2008-05-15 | 2009-02-04 | 马方立 | Semi-automatic radio direction measuring machine |
| CN201397511Y (en) * | 2009-04-23 | 2010-02-03 | 恒隆科技股份有限公司 | Antenna separated type hand-held data searching device |
Non-Patent Citations (1)
| Title |
|---|
| 李坡等: "数字荧光技术在电子侦察中的应用", 《电子测量与仪器学报》, 31 December 2008 (2008-12-31), pages 342 - 346 * |
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| CN102401890B (en) | 2013-11-27 |
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Denomination of invention: A method of locating signal transmitter by using multidimensional graphics according to radio signal strength Effective date of registration: 20200907 Granted publication date: 20131127 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU DIANZHEN TECHNOLOGY Co.,Ltd. Registration number: Y2020980005785 |
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