CN104661182A - Method for accurately positioning electric car charging pile - Google Patents
Method for accurately positioning electric car charging pile Download PDFInfo
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- CN104661182A CN104661182A CN201410645509.1A CN201410645509A CN104661182A CN 104661182 A CN104661182 A CN 104661182A CN 201410645509 A CN201410645509 A CN 201410645509A CN 104661182 A CN104661182 A CN 104661182A
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- Prior art keywords
- base station
- signal
- charging pile
- loss
- distance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
Abstract
The invention discloses a method for accurately positioning an electric car charging pile, and relates to the technical field of accurate positioning of charging piles. The method is a method for accurately positioning the charging pile by using signal energy loss detection, a TD-SCDMA technology is adopted, and in a TD signal propagation process, the charging pile is accurately positioned according the relationship between a power loss value and a transmission distance. According to the invention, the method for accurately positioning the charging pile by using signal energy loss detection is adopted, and is easy to operate, high in accuracy, and capable of analyzing the position of the charging pile in real time.
Description
Technical field
The present invention relates to and relate to one by TD-SCDMA network, accurately located the technical scheme of charging pile for electric vehicle position by the energy loss of measured signal, particularly relate to a kind of pinpoint method of charging pile for electric vehicle.
Background technology
Electric automobile has the insured amount feature of energy-saving ring, is also that country supported the high-tech industry project of development energetically in recent years.Electric motor car mainly relies on battery to realize running, battery is built in electric motor car inside, once its follow-up startup work of running down of battery is than startup difficulty many of fuel-engined vehicle, therefore ensured electric motor car before dead battery capability for its charging has vital effect for the universal of electric motor car.The infrastructure of current Chinese electric motor car is very limited, mainly charging pile limited amount and Location-Unknown, driver is once drive to sail in unfamiliar environment, the charging problems of electric motor car will highlight, therefore how quick position charging pile for electric vehicle indicate nearest charging pile and seem particularly important.Along with the development of TD-SCDMA with national independent intellectual property right, and the heat of one-tenth increasingly of technology, TD technology is promoted widely, has been penetrated in daily production and life.Use TD technology to realize location fast and become possibility.The formula W of Distance geometry power loss under utilization free space
loss=32.44+20lg d+20lg f due to the spacing of two charging piles longer, therefore have comparatively lossy, make this formula cannot by power loss calculate determine relative distance.
Summary of the invention
The present invention will solve above technical problem, provides a kind of charging pile for electric vehicle pinpoint method, accurately orients charging pile position.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of pinpoint method of charging pile for electric vehicle, for a kind of signal energy loss detects the pinpoint method of charging pile, have employed TD-SCDMA technology, according to TD signal in communication process, the relation of power loss value and transmission range, accurately orient charging pile position, the concrete steps of the method are:
I, charging pile settles small base station, base station effect coverage radius is spaced apart between two base stations, a signal source is received by two base stations, form seamless coverage, there is not blind spot, base station just determines self position when setting up, namely the distance of access adit is arrived, in order Arabic numerals numbering is carried out to base station, a signal once only communicates with a base station, odd number base station is set 0 second time, opens work, when 10 seconds, start working in even number base station, odd number base station quits work simultaneously, when 20 seconds, start working again in odd number base station, even number base station quits work simultaneously, like this with 10 seconds for base station operation switching time, circulate successively, described base station adopts the wireless KT15-F base station of Datang Telecom,
II, by position, base station information transmission in GPS server;
III, the configuration of signal generating module mobile phone, the mobile phone of signal generating module is housed to driver's configuration, the mobile phone that module is housed sends a signal every the time that one is determined, this interlude is emission duration, by need of work determination emission duration, emission duration≤base station operation switching time, signal is received successively by two base stations that I settles in down-hole, the base station of Received signal strength sends signal to I at surface-mounted server, server selection goes out this present position, two base stations, and then fuzzy orienting carries this mobile phone personnel scope between two base stations,
IV, accurately location: use W
1represent that III is equipped with the intensity of the handset emissions signal of module, use W
1represent that I base station receives the intensity of signal, substitute into formula W
loss=W
1-W
2in, calculate the propagation loss W of signal
loss, represent that construct the empirical model about σ, building method is as follows due to the loss that reflection, refraction and wall cause in the face of signal absorption in tunnel with σ: the distance d=1m getting the mobile phone distance base station that module is housed respectively, 2m, 3m ... 300m, substitutes into formula W
loss=32.44+20lg d+20lg f+ σ, in formula, f represents that operating frequency is known quantity, calculate the value of σ, for improving the double counting of precision same distance several times, setting up one-to-one relationship database between each distance d and trade internal loss value σ, determining the position of two base stations in I, when accurately locating, using one of them base station as Reference BTS, formula W
lossin=32.44+20lg D+20lg f+s, D and σ is unknown quantity, W
lossbe known quantity with f, values match is carried out by computer by the database about d and σ set up, D and σ that equation can be made to set up is exactly the required amount obtained, and D is exactly the distance of accurate mobile phone apart from Reference BTS, is the distance of driver to Reference BTS.
The communication performance that the present invention utilizes TD itself to have is good, can tackle comparatively complex environment, even if there are the adverse circumstances such as haze, snowstorm, typhoon, equally accurately can locate and indicate nearest charging pile.TD transmission speed is fast simultaneously, locating speed is fast, only needed just can orient charging pile position more than 10 seconds, and precision can be as accurate as the advantage of rice, there is provided a kind of and only realize location based on the base station of TD-SCDMA to mobile phone, precision, specific a kind of signal energy loss detect the pinpoint method of colliery charging pile more can to make the location of charging pile.The innovative point of the method is that charging pile arranges location and method of work and improvement to conventional power and distance relation, makes charging pile registration reliable.
Compared with prior art, the invention has the beneficial effects as follows: the present invention can not only orient charging pile position fast and accurately, and can realize real-time, guarantee to track driver place particular location at any time; Overcome the shortcoming that driver cannot find charging pile, provide a kind of signal energy loss and detect the pinpoint method of charging pile, the method is easy to operation, accuracy is high, can real-time analysis charging pile position, location and method of work are arranged for charging pile and be realize key of the present invention and innovation place to the improvement of conventional power and distance relation.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, will be further elaborated to the present invention with specific embodiment below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Be described in more detail below the preferred embodiment of the present invention.
I, charging pile settles small base station, base station effect coverage radius is spaced apart between two base stations, a signal source is received by two base stations, form seamless coverage, there is not blind spot, base station just determines self position when setting up, namely the distance of access adit is arrived, base station is numbered in order, be respectively 1, 2, 3 a signal once only communicates with a base station, odd number base station is set 0 second time, opens work, when 10 seconds, start working in even number base station, odd number base station quits work simultaneously, when 20 seconds, start working again in odd number base station, even number base station quits work simultaneously, like this with 10 seconds for base station operation switching time, circulate successively, described base station adopts the wireless KT15-F base station of Datang Telecom,
II, by position, base station information transmission in GPS server;
III, the configuration of signal generating module mobile phone, the mobile phone of signal generating module is housed to driver's configuration, the mobile phone that module is housed sends a signal every the time that one is determined, this interlude is emission duration, by need of work determination emission duration, emission duration≤base station operation switching time, signal is received successively by two base stations that I settles in down-hole, the base station of Received signal strength sends signal to I at surface-mounted server, server selection goes out this present position, two base stations, and then fuzzy orienting carries this mobile phone personnel scope between two base stations,
IV, accurately location: use W
1represent that III is equipped with the intensity of the handset emissions signal of module, use W
2represent that I base station receives the intensity of signal, substitute into formula W
loss=W
1-W
2in, calculate the propagation loss W of signal
loss, represent that construct the empirical model about σ, building method is as follows due to the loss that reflection, refraction and wall cause in the face of signal absorption in tunnel with σ: the distance d=1m getting the mobile phone distance base station that module is housed respectively, 2m, 3m ... 300m, substitutes into formula W
loss=32.44+20lg d+20lg f+ σ, in formula, f represents that operating frequency is known quantity, calculate the value of σ, establish each distance d and have the relation that a trade internal loss value σ is corresponding with it, for improving the double counting of precision same distance several times, set up the database of distance d and σ, at this, suppose a σ and d database:
Suppose, in charging pile A place's arrangement base station, to have settled a base station according to the charging pile B that charging pile 300 meters is far away, driver is in apart from charging pile 30m place, needs to be located.Mobile phone that tested personnel holds every 10s timing to base station transmit signals, the signal of driver position is covered by the base station at the base station at A place and B place simultaneously, so base station, A place and 1 sends signal apart from base station, access adit B place respectively to location server, driver place ambiguous location is in A base station and B place base station range, with base station, A place for Reference BTS, suppose that operating frequency is 2.4GHz, mobile phone transmission power W
1for 70dBm, A place base station receives power W
2for 0dBm, so dissipation power W
lossfor 70dBm.By the database about d and σ set up
Formula W is brought into by computer
loss=32.44+20lg D+20lg f+s carries out values match, brings D=30m into, and σ=2.4dBm makes equation set up, then mobile phone is apart from the distance D=30m of Reference BTS, so the charging pile indicating driver nearest is A, and distance is 30m.
Claims (1)
1. the pinpoint method of charging pile for electric vehicle, it is characterized in that: the method is that a kind of signal energy loss detects the pinpoint method of charging pile, have employed TD-SCDMA technology, according to TD signal in communication process, the relation of power loss value and transmission range, accurately orient charging pile position, the concrete steps of the method are:
I, charging pile settles small base station, base station effect coverage radius is spaced apart between two base stations, a signal source is received by two base stations, form seamless coverage, there is not blind spot, base station just determines self position when setting up, namely the distance of access adit is arrived, in order Arabic numerals numbering is carried out to base station, a signal once only communicates with a base station, odd number base station is set 0 second time, opens work, when 10 seconds, start working in even number base station, odd number base station quits work simultaneously, when 20 seconds, start working again in odd number base station, even number base station quits work simultaneously, like this with 10 seconds for base station operation switching time, circulate successively, described base station adopts the wireless KT15-F base station of Datang Telecom,
II, by position, base station information transmission in GPS server;
III, the configuration of signal generating module mobile phone, the mobile phone of signal generating module is housed to driver's configuration, the mobile phone that module is housed sends a signal every the time that one is determined, this interlude is emission duration, by need of work determination emission duration, emission duration≤base station operation switching time, signal is received successively by two base stations that I settles in down-hole, the base station of Received signal strength sends signal to I at surface-mounted server, server selection goes out this present position, two base stations, and then fuzzy orienting carries this mobile phone personnel scope between two base stations,
IV, accurately location: use W
1represent that III is equipped with the intensity of the handset emissions signal of module, use W
2represent that I base station receives the intensity of signal, substitute into formula W
loss=W
1-W
2in, calculate the propagation loss W of signal
loss, represent that construct the empirical model about σ, building method is as follows due to the loss that reflection, refraction and wall cause in the face of signal absorption in tunnel with σ: the distance d=1m getting the mobile phone distance base station that module is housed respectively, 2m, 3m ... 300m, substitutes into formula W
loss=32.44+20lg d+20lg f+ σ, in formula, f represents that operating frequency is known quantity, calculate the value of σ, for improving the double counting of precision same distance several times, setting up one-to-one relationship database between each distance d and trade internal loss value σ, determining the position of two base stations in I, when accurately locating, using one of them base station as Reference BTS, formula W
lossin=32.44+20lg D+20lg f+s, D and σ is unknown quantity, W
lossbe known quantity with f, values match is carried out by computer by the database about d and σ set up, D and σ that equation can be made to set up is exactly the required amount obtained, and D is exactly the distance of accurate mobile phone apart from Reference BTS, is the distance of driver to Reference BTS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410645509.1A CN104661182A (en) | 2014-11-14 | 2014-11-14 | Method for accurately positioning electric car charging pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410645509.1A CN104661182A (en) | 2014-11-14 | 2014-11-14 | Method for accurately positioning electric car charging pile |
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| CN104661182A true CN104661182A (en) | 2015-05-27 |
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| CN201410645509.1A Pending CN104661182A (en) | 2014-11-14 | 2014-11-14 | Method for accurately positioning electric car charging pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048563A (en) * | 2015-08-09 | 2015-11-11 | 安徽普为智能科技有限责任公司 | Charging locating method of alternating current charging post |
| CN109714702A (en) * | 2018-12-19 | 2019-05-03 | 恒大智慧科技(深圳)有限公司 | Charge localization method, computer equipment and storage medium |
| CN110769372A (en) * | 2019-07-23 | 2020-02-07 | 恒大智慧充电科技有限公司 | Cloud platform, navigation method, computer equipment and computer-readable storage medium |
-
2014
- 2014-11-14 CN CN201410645509.1A patent/CN104661182A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048563A (en) * | 2015-08-09 | 2015-11-11 | 安徽普为智能科技有限责任公司 | Charging locating method of alternating current charging post |
| CN109714702A (en) * | 2018-12-19 | 2019-05-03 | 恒大智慧科技(深圳)有限公司 | Charge localization method, computer equipment and storage medium |
| CN110769372A (en) * | 2019-07-23 | 2020-02-07 | 恒大智慧充电科技有限公司 | Cloud platform, navigation method, computer equipment and computer-readable storage medium |
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Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |