CN104540104A - Positioning method and system for vehicle in mixing station - Google Patents
Positioning method and system for vehicle in mixing station Download PDFInfo
- Publication number
- CN104540104A CN104540104A CN201410830333.7A CN201410830333A CN104540104A CN 104540104 A CN104540104 A CN 104540104A CN 201410830333 A CN201410830333 A CN 201410830333A CN 104540104 A CN104540104 A CN 104540104A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000005855 radiation Effects 0.000 claims abstract description 44
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000013507 mapping Methods 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract 1
- 230000004807 localization Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides a positioning method and system for a vehicle in a mixing station. At least three WIFI devices are arranged in the stirring station, the positions of the WIFI devices are recorded, the radiation radii of measurement are increased by arranging intervals in advance, the signal intensity of different radiation radii of the WIFI devices is measured, the correspondence table of the radiation radii and the signal intensity of the WIFI devices is constructed, the signal intensity, received by the vehicle to be positioned, of the different WIFI devices is measured, the distances between the vehicle to be positioned and the different WIFI devices are calculated, and the position of the vehicle to be positioned in the mixing station is determined according to the positions of the WIFI devices in the mixing station. Positioning can be achieved in the whole process simply through the multiple WIFI devices, the positioning process is simple and accurate, the positioning method and system are suitable for meeting the positioning requirement in small ranges such as the mixing station, in addition, the signals are sent out through the WIFI in the mixing station, and the signal intensity of the signals is large enough and is not affected by external factors such as raise dust.
Description
Technical field
The present invention relates to mixing plant technical field, particularly relate to vehicle positioning method and system in mixing plant.
Background technology
Mixing plant is mainly used in concrete works, and main application is for being uniformly mixed concrete.Mixing plant needs multiple haulage vehicle to provide transportation service to it in the course of the work, such as, need the raw materials such as vehicle transport sandstone, cement, needs Product transport that concrete-agitating vehicle is produced to construction site.
Polytype vehicle travels in mixing plant, need to carry out good management and control to it, and the basis of good management and control is exactly the location to each vehicle, the vehicle positioning method of current main flow is all based on geographical location information, such as GPS etc., these locate modes can realize precise positioning, but GPS implementation cost is high and in mixing plant, vehicle traveling can produce a large amount of dusts, its bad environments, the dust kicked up can have a strong impact on the accuracy of GPS location.
The existing localization method implementation cost based on geographical location information is high, and cannot be applicable to this rugged environment of mixing plant.
Summary of the invention
Based on this, be necessary for the localization method implementation cost based on geographical location information high, and this rugged environment problem of mixing plant cannot be applicable to, provide a kind of implementation cost cheap and vehicle positioning method and system in mixing plant can be applicable to.
Vehicle positioning method in a kind of mixing plant, comprises step:
At least 3 WIFI equipment are set in mixing plant, record the position of WIFI equipment in mixing plant respectively;
Keep the position of WIFI equipment and export constant, predetermined interval increases the radiation radius measured, and measures the signal strength signal intensity of the different radiation radius of WIFI equipment, builds the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity;
Measure the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment;
According to the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, and vehicle receiver to be positioned is to the signal strength signal intensity of different WIFI equipment, calculates the distance between vehicle to be positioned from different WIFI equipment;
According to distance and the position of WIFI equipment in mixing plant of vehicle to be positioned and different WIFI equipment, determine the position of vehicle to be positioned in mixing plant.
Vehicle positioning system in a kind of mixing plant, comprising:
Module being set, for arranging at least 3 WIFI equipment in mixing plant, recording the position of WIFI equipment in mixing plant respectively;
Relation table builds module, for keeping the position of WIFI equipment and exporting constant, predetermined interval increases the radiation radius measured, and measures the signal strength signal intensity of the different radiation radius of WIFI equipment, builds the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity;
Signal strength measurement module, for measuring the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment;
Distance calculation module, for according to the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, and vehicle receiver to be positioned is to the signal strength signal intensity of different WIFI equipment, calculates the distance between vehicle to be positioned from different WIFI equipment;
Locating module, for according to the distance of vehicle to be positioned and different WIFI equipment and the position of WIFI equipment in mixing plant, determines the position of vehicle to be positioned in mixing plant.
Vehicle positioning method and system in mixing plant of the present invention, at least 3 WIFI equipment are set in mixing plant, record the position of WIFI equipment, predetermined interval increases the radiation radius measured afterwards, measure the signal strength signal intensity of the different radiation radius of WIFI equipment, build the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, measure the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment, calculate the distance of vehicle to be positioned to different WIFI equipment, according to the position of WIFI equipment in mixing plant and the vehicle to be positioned distance to different WIFI equipment, determine the position of vehicle to be positioned in mixing plant.In mixing plant of the present invention, vehicle positioning method does not need by the navigation system based on geographical location information complexity, its needs multiple stage WIFI equipment can realize location, position fixing process is simple, accurate, be applicable to this location requirement interior among a small circle of mixing plant, in addition, WIFI signal wide coverage, and due to signal be sent by the WIFI in mixing plant, its signal strength signal intensity is enough large, is not vulnerable to the impact of the extraneous factors such as airborne dust.So vehicle positioning method is that a kind of implementation cost is cheap and can be applicable to the method for vehicle location in mixing plant in mixing plant of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of vehicle positioning method first embodiment in mixing plant of the present invention;
Fig. 2 is the schematic flow sheet of vehicle positioning method second embodiment in mixing plant of the present invention;
Fig. 3 is the structural representation of Vehicle positioning system first embodiment in mixing plant of the present invention;
Fig. 4 is the structural representation of Vehicle positioning system second embodiment in mixing plant of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below with reference to the accompanying drawings and embodiment, the present invention is further elaborated.Should be appreciated that concrete enforcement described herein is only in order to explain the present invention, does not limit the present invention.
As shown in Figure 1, vehicle positioning method in a kind of mixing plant, comprises step:
S100: arrange at least 3 WIFI equipment in mixing plant, records the position of WIFI equipment in mixing plant respectively.
Mixing plant has certain regional extent, at least 3 WIFI equipment are set in this regional extent, when mixing plant scope is larger, the quantity arranging WIFI equipment just needs setting more, when mixing plant scope is relatively little, the quantity arranging WIFI equipment just can be oppositely arranged few point, but generally needs to guarantee that the signal strength signal intensity needs of each WIFI equipment are enough to cover whole mixing plant.The record position of WIFI in mixing plant, this position record can based on two-dimensional coordinate figure, also can be based on the distance (being specially adapted to the mixing plant of rectangular area) with mixing plant marginal position, or be with Important building in mixing plant for reference, determine its position.
S200: keep the position of WIFI equipment and export constant, predetermined interval increases the radiation radius measured, measures the signal strength signal intensity of the different radiation radius of WIFI equipment, builds the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity.
Popular point, be exactly for the center of circle with the position of WIFI equipment, predetermined interval increases radius and obtains multiple concentric circles, such as with 1 meter for interval, first concentrically ringed radius is 1 meter, second concentrically ringed radius is 2 meters, the like, the final concentric circles obtaining the whole mixing plant of covering, the concentrically ringed center of circle is all certain WIFI equipment position.Measure each concentrically ringed signal strength signal intensity signal strength signal intensity of WIFI equipment (under the current radiation radius), namely obtain with the signal strength signal intensity of the different radiation radius of WIFI equipment, record signal strength signal intensity now and radiation radius, repeat to carry out above-mentioned similar process to every platform WIFI equipment, build the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity.Be to be understood that to preset and can set according to positioning precision at equal intervals, when requiring positioning precision height, preset arrange at equal intervals relatively little, such as 1 centimetre, now precise positioning can be realized, but it needs to process a large amount of data, data sampling and processing process is complicated, when requiring positioning precision not high, preset arrange at equal intervals relatively large, such as 10 meters, now data sampling and processing process is relatively simple, but positioning precision relative mistake some.
S300: measure the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment.
On vehicle to be positioned, signal intensity detection apparatus can be installed, measure the signal strength signal intensity now receiving different WIFI equipment.In order to distinguish different WIFI equipment, we can arrange time, the frequency difference that different WIFI equipment sends signal, and such checkout equipment can be distinguished current demand signal and by which WIFI equipment be sent.
S400: according to the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, and vehicle receiver to be positioned is to the signal strength signal intensity of different WIFI equipment, calculates the distance between vehicle to be positioned from different WIFI equipment.
S500: according to distance and the position of WIFI equipment in mixing plant of vehicle to be positioned and different WIFI equipment, determine the position of vehicle to be positioned in mixing plant.
Vehicle positioning method in mixing plant of the present invention, at least 3 WIFI equipment are set in mixing plant, record the position of WIFI equipment, predetermined interval increases the radiation radius measured afterwards, measure the signal strength signal intensity of the different radiation radius of WIFI equipment, build the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, measure the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment, calculate the distance of vehicle to be positioned to different WIFI equipment, according to the position of WIFI equipment in mixing plant and the vehicle to be positioned distance to different WIFI equipment, determine the position of vehicle to be positioned in mixing plant.In mixing plant of the present invention, vehicle positioning method does not need by the navigation system based on geographical location information complexity, its needs multiple stage WIFI equipment can realize location, position fixing process is simple, accurate, be applicable to this location requirement interior among a small circle of mixing plant, in addition, WIFI signal wide coverage, and due to signal be sent by the WIFI in mixing plant, its signal strength signal intensity is enough large, is not vulnerable to the impact of the extraneous factors such as airborne dust.So vehicle positioning method is that a kind of implementation cost is cheap and can be applicable to the method for vehicle location in mixing plant in mixing plant of the present invention.
As shown in Figure 2, wherein in an embodiment, described at least 3 WIFI equipment are set in mixing plant, before recording the position of WIFI equipment in mixing plant respectively also in steps:
S600: traversal mixing plant scope, draws the two-dimensional coordinate figure of mixing plant.
A two-dimensional coordinate figure is drawn in mixing plant, can to location, each position in mixing plant, this two-dimensional coordinate figure can mixing plant edge be transverse and longitudinal coordinate (being applicable to the mixing plant of rectangular extent).In this mixing plant, each position clearly can show with (X, Y), and such handled easily personnel simply, intuitively know concrete position.
Wherein in an embodiment, described predetermined interval is 1 meter.
In the present embodiment, preset pitch is 1 meter, namely during first measurement, be measure WIFI radiation of equipment radius be 1 meter signal strength signal intensity, second when measuring, be measure WIFI radiation of equipment radius be 2 meters signal strength signal intensity, the 3rd when measuring, measure the signal strength signal intensity that WIFI radiation of equipment radius is 3 meters ..., under the prerequisite taking into account positioning precision, the treating capacity of data can be reduced to greatest extent like this.
Wherein in an embodiment, described measurement vehicle receiver to be positioned to different WIFI equipment signal strength signal intensity after also in steps:
When vehicle receiver to be positioned to the signal strength signal intensity of different WIFI equipment by when dying down by force, judge that vehicle to be positioned sails out of mixing plant, when vehicle receiver to be positioned all changes from weak to strong to the signal strength signal intensity of different WIFI equipment, judge that vehicle to be positioned enters mixing plant.
When vehicle to be positioned sails out of mixing plant, its signal strength signal intensity apart from each WIFI equipment will by dying down by force, so we can be around this principle, when detecting that the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment is by when dying down by force, judge that vehicle to be positioned sails out of mixing plant, when vehicle receiver to be positioned all changes from weak to strong to the signal strength signal intensity of different WIFI equipment, judge that vehicle to be positioned enters mixing plant.
Wherein in an embodiment, the quantity of described WIFI equipment is 3.
Wherein in an embodiment, described WIFI equipment is the WIFI equipment of same model.
WIFI equipment is the intensity that the WIFI equipment of same model and WIFI equipment send signal is consistent, and we just can a radiation radius of measurement separate unit WIFI equipment and the mapping table of signal strength signal intensity like this, reduces data acquisition and processing (DAP) amount, raises the efficiency.
As shown in Figure 3, Vehicle positioning system in a kind of mixing plant, comprising:
Module 100 being set, for arranging at least 3 WIFI equipment in mixing plant, recording the position of WIFI equipment in mixing plant respectively;
Relation table builds module 200, for keeping the position of WIFI equipment and exporting constant, predetermined interval increases the radiation radius measured, and measures the signal strength signal intensity of the different radiation radius of WIFI equipment, builds the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity;
Signal strength measurement module 300, for measuring the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment;
Distance calculation module 400, for according to the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, and vehicle receiver to be positioned is to the signal strength signal intensity of different WIFI equipment, calculates the distance between vehicle to be positioned from different WIFI equipment;
Locating module 500, for according to the distance of vehicle to be positioned and different WIFI equipment and the position of WIFI equipment in mixing plant, determines the position of vehicle to be positioned in mixing plant.
Vehicle positioning system in mixing plant of the present invention, module 100 is set at least 3 WIFI equipment are set in mixing plant, record the position of WIFI equipment, relation table builds module 200 predetermined interval increases the radiation radius measured, measure the signal strength signal intensity of the different radiation radius of WIFI equipment, build the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, signal strength measurement module 300 measures the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment, distance calculation module 400 calculates the distance of vehicle to be positioned to different WIFI equipment, locating module 500 is according to the position of WIFI equipment in mixing plant and the vehicle to be positioned distance to different WIFI equipment, determine the position of vehicle to be positioned in mixing plant.In mixing plant of the present invention, Vehicle positioning system does not need by the navigation system based on geographical location information complexity, its needs multiple stage WIFI equipment can realize location, position fixing process is simple, accurate, be applicable to this location requirement interior among a small circle of mixing plant, in addition, WIFI signal wide coverage, and due to signal be sent by the WIFI in mixing plant, its signal strength signal intensity is enough large, is not vulnerable to the impact of the extraneous factors such as airborne dust.
As shown in Figure 4, wherein in an embodiment, in described mixing plant, Vehicle positioning system also comprises:
Two-dimensional coordinate figure drafting module 600, for traveling through mixing plant scope, draws the two-dimensional coordinate figure of mixing plant.
Wherein in an embodiment, described predetermined interval is 1 meter.
Wherein in an embodiment, in described mixing plant, Vehicle positioning system also comprises:
Sail out of induction module, for when vehicle receiver to be positioned to the signal strength signal intensity of different WIFI equipment by when dying down by force, judge that vehicle to be positioned sails out of mixing plant, when vehicle receiver to be positioned all changes from weak to strong to the signal strength signal intensity of different WIFI equipment, judge that vehicle to be positioned enters mixing plant.
Wherein in an embodiment, the quantity of described WIFI equipment is 3.
Wherein in an embodiment, described WIFI equipment is the WIFI equipment of same model.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a vehicle positioning method in mixing plant, is characterized in that, comprises step:
At least 3 WIFI equipment are set in mixing plant, record the position of WIFI equipment in mixing plant respectively;
Keep the position of WIFI equipment and export constant, predetermined interval increases the radiation radius measured, and measures the signal strength signal intensity of the different radiation radius of WIFI equipment, builds the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity;
Measure the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment;
According to the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, and vehicle receiver to be positioned is to the signal strength signal intensity of different WIFI equipment, calculates the distance between vehicle to be positioned from different WIFI equipment;
According to distance and the position of WIFI equipment in mixing plant of vehicle to be positioned and different WIFI equipment, determine the position of vehicle to be positioned in mixing plant.
2. vehicle positioning method in mixing plant according to claim 1, is characterized in that, describedly in mixing plant, arranges at least 3 WIFI equipment, before recording the position of WIFI equipment in mixing plant respectively also in steps:
Traversal mixing plant scope, draws the two-dimensional coordinate figure of mixing plant.
3. vehicle positioning method in mixing plant according to claim 1 and 2, is characterized in that, described predetermined interval is 1 meter.
4. vehicle positioning method in mixing plant according to claim 1 and 2, is characterized in that, described measurement vehicle receiver to be positioned to different WIFI equipment signal strength signal intensity after also in steps:
When vehicle receiver to be positioned to the signal strength signal intensity of different WIFI equipment by when dying down by force, judge that vehicle to be positioned sails out of mixing plant, when vehicle receiver to be positioned all changes from weak to strong to the signal strength signal intensity of different WIFI equipment, judge that vehicle to be positioned enters mixing plant.
5. vehicle positioning method in mixing plant according to claim 1 and 2, is characterized in that, described WIFI equipment is the WIFI equipment of same model.
6. a Vehicle positioning system in mixing plant, is characterized in that, comprising:
Module being set, for arranging at least 3 WIFI equipment in mixing plant, recording the position of WIFI equipment in mixing plant respectively;
Relation table builds module, for keeping the position of WIFI equipment and exporting constant, predetermined interval increases the radiation radius measured, and measures the signal strength signal intensity of the different radiation radius of WIFI equipment, builds the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity;
Signal strength measurement module, for measuring the signal strength signal intensity of vehicle receiver to be positioned to different WIFI equipment;
Distance calculation module, for according to the radiation radius of each WIFI equipment and the mapping table of signal strength signal intensity, and vehicle receiver to be positioned is to the signal strength signal intensity of different WIFI equipment, calculates the distance between vehicle to be positioned from different WIFI equipment;
Locating module, for according to the distance of vehicle to be positioned and different WIFI equipment and the position of WIFI equipment in mixing plant, determines the position of vehicle to be positioned in mixing plant.
7. Vehicle positioning system in mixing plant according to claim 6, is characterized in that, also comprise:
Two-dimensional coordinate figure drafting module, for traveling through mixing plant scope, draws the two-dimensional coordinate figure of mixing plant.
8. Vehicle positioning system in the mixing plant according to claim 6 or 7, is characterized in that, described predetermined interval is 1 meter.
9. Vehicle positioning system in the mixing plant according to claim 6 or 7, is characterized in that, also comprises:
Sail out of induction module, for when vehicle receiver to be positioned to the signal strength signal intensity of different WIFI equipment by when dying down by force, judge that vehicle to be positioned sails out of mixing plant, when vehicle receiver to be positioned all changes from weak to strong to the signal strength signal intensity of different WIFI equipment, judge that vehicle to be positioned enters mixing plant.
10. Vehicle positioning system in the mixing plant according to claim 6 or 7, is characterized in that, described WIFI equipment is the WIFI equipment of same model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830333.7A CN104540104A (en) | 2014-12-26 | 2014-12-26 | Positioning method and system for vehicle in mixing station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830333.7A CN104540104A (en) | 2014-12-26 | 2014-12-26 | Positioning method and system for vehicle in mixing station |
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| CN104540104A true CN104540104A (en) | 2015-04-22 |
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| CN201410830333.7A Pending CN104540104A (en) | 2014-12-26 | 2014-12-26 | Positioning method and system for vehicle in mixing station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110459074A (en) * | 2019-08-12 | 2019-11-15 | 东北大学 | Anti-collision warning system and method for mining trucks based on radar and WIFI |
| CN113696344A (en) * | 2021-10-15 | 2021-11-26 | 国能大渡河大数据服务有限公司 | A concrete production monitored control system for water and electricity engineering |
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Application publication date: 20150422 |