CN106515494B - A kind of charging station status information acquiring method and system based on roadside unit - Google Patents
A kind of charging station status information acquiring method and system based on roadside unit Download PDFInfo
- Publication number
- CN106515494B CN106515494B CN201611096870.9A CN201611096870A CN106515494B CN 106515494 B CN106515494 B CN 106515494B CN 201611096870 A CN201611096870 A CN 201611096870A CN 106515494 B CN106515494 B CN 106515494B
- Authority
- CN
- China
- Prior art keywords
- charging station
- waiting time
- sequence
- status information
- roadside unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/70—Interactions with external data bases, e.g. traffic centres
- B60L2240/72—Charging station selection relying on external data
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/12—Electric charging stations
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The embodiment of the invention provides a kind of charging station status information acquiring method and system based on roadside unit, which includes electric car, charging site server and is set to the roadside unit in roadside；Wherein, electric car can establish wireless communication connection with roadside unit, and roadside unit can establish wireless communication connection with charging site server；The described method includes: being wirelessly communicated after connecting in electric car and roadside unit foundation, sends to subscribe to roadside unit and request, so that roadside unit is requested pre-stored charging station status information feedback according to subscription to electric car；Wherein, charging station status information is to be generated by charging site server and be reported to roadside unit after establishing wireless communication connection with roadside unit；Receive and export the charging station status information of roadside unit feedback.The embodiment of the present invention can make driver know charging station status information in advance, avoid the trip for delaying driver.
Description
Technical field
The present invention relates to electric car charge control technical fields, more particularly to a kind of charging station based on roadside unit
Status information acquiring method and system.
Background technique
Electric car has been incorporated into world market as energy-saving and environment-friendly new-energy automobile, however, due to electric car
Charging time it is longer, if a large amount of electric car occupies charging station simultaneously, will lead to charging station and serious charging occur and gather around
The situation of squeezing.
In the prior art, charging station, which provides, a kind of replaces the mode of battery for electric car come the charging of alleviating charging station
Crowded state.Specifically, charging station can be prepared in advance reserve battery, these reserve batteries are full of in advance, when there is electronic vapour
When Chinese herbaceous peony charges toward charging station, the staff of charging station is directly electric car replacement battery.
But in actual life, since the reserve battery of each charging station is limited, driver is not knowing current time
In the case where specific charging station status information (including each charging station reserve battery information), corresponding charging plan also can not be just made
Slightly.For example, if the reserve battery of some charging station is not all full of, and driver does not know this situation, goes to the charging station
For electric car replace battery, driver there is still a need for wait reserve battery it is fully charged after can for electric car replace battery,
This will delay the trip of driver；If driver knows this situation in advance, will not go to the charging station is electric car
Replace battery.
To sum up, driver how to be made to know that charging station status information is a urgent problem to be solved in advance.
Summary of the invention
The embodiment of the present invention be designed to provide a kind of charging station status information acquiring method based on roadside unit and
System, so that the driver in electric car knows charging station status information in advance.
In order to achieve the above objectives, the charging station state information acquisition based on roadside unit that the embodiment of the invention provides a kind of
Method the system also includes charging site server and is set applied to the electric car in charging station state information acquisition system
It is placed in the roadside unit in roadside；Wherein, the electric car can establish wireless communication connection, the road with the roadside unit
Side unit can establish wireless communication connection with the charging site server；
The described method includes:
After the electric car and the roadside unit establish wireless communication connection, Xiang Suoshu roadside unit, which is sent, to be subscribed to
Request, so that the roadside unit is requested pre-stored charging station status information feedback according to the subscription to described electronic
Automobile；Wherein, the charging station status information is to be generated by the charging site server and establishing nothing with the roadside unit
Be reported to the roadside unit after line communication connection, the charging station status information for the charging site server according to pair
The electricity of reserve battery and the electricity of precharge cell are generated in inductive charging station；The precharge cell is the charging
The batteries of electric automobile to be charged such as in standing；
Receive and export the charging station status information of the roadside unit feedback.
More preferably, the charging site server is according to the electricity and precharge cell of reserve battery in corresponding charging station
Electricity generate the mode of the charging station status information, comprising:
The charging site server detects the electricity of all reserve batteries in corresponding charging station, full capacity reserve battery
The quantity of quantity and non-full capacity reserve battery；
For the charging site server when the quantity of full capacity reserve battery is greater than zero, generating includes full capacity reserve battery
Quantity charging station status information；
The charging site server executes following steps when the quantity of full capacity reserve battery is equal to zero:
The charging site server is calculated according to the electricity of non-full capacity reserve battery full of non-full capacity reserve battery
First waiting time；
The charging site server is ranked up first waiting time according to ascending sequence, generates the
One Waiting Time Sequence；Wherein, first Waiting Time Sequence is [A1,A2,...Ai,...An], AiFor i-th piece of non-full capacity
First waiting time of reserve battery, n are the quantity of non-full capacity reserve battery；
The electricity and quantity of the charging site server detection precharge cell；
The charging site server is less than the non-full capacity reserve battery in the quantity for determining the precharge cell
Quantity when, according to first Waiting Time Sequence generate the second Waiting Time Sequence, according to the second waiting time sequence
Column-generation second waits moment sequence, and establishing includes the described second charging station status information for waiting moment sequence；Wherein, institute
Stating the second Waiting Time Sequence is [Am+1,Am+2,...An], described second waits moment sequence for [Am+1+E,Am+2+E,...An+
E], E is the sending instant of the charging station status information, and m is the quantity of the precharge cell；
The charging site server is not less than the non-full capacity standby electricity in the quantity for determining the precharge cell
When the quantity in pond, according to the electricity of the precharge cell, the third waiting time for being full of the precharge cell is calculated, according to
Ascending sequence is ranked up the third waiting time, third Waiting Time Sequence is generated, according to described first etc.
The 4th Waiting Time Sequence is generated to time series and the third Waiting Time Sequence, according to the 4th Waiting Time Sequence
The 4th waiting moment sequence is generated, and establishing includes the described 4th charging station status information for waiting moment sequence；
Wherein, the third Waiting Time Sequence is [B1,B2,...Bj,...Bm], BjIt is the of jth block precharge cell
Three waiting time, the 4th Waiting Time Sequence are
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1,
A1+B1+Bn+1+...+Bkn+1,
A2+B2+Bn+2+...+Bkn+2,
Ab+Bb+Bn+b+...+Bkn+b]
It is described 4th waiting moment sequence be
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1+E,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2+E,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1+ E,
A1+B1+Bn+1+...+Bkn+1+E,
A2+B2+Bn+2+...+Bkn+2+E,
Ab+Bb+Bn+b+...+Bkn+b+E]
M=kn+b, 0≤b≤n.
More preferably, the method also includes:
It obtains the electric car and itself is presently in the corresponding first location information in position and destination corresponding
Two location informations；
According to the first location information, the charging station status information and the second location information, generate and defeated
The shortest route time of the destination is reached out.
More preferably, the charging station status information further includes the location information of charging station；
It is described according to the first location information, the charging station status information and the second location information, generate
And the step of exporting the shortest route time for reaching the destination, comprising:
When generating reach the charging station first according to the location information of the first location information and the charging station
It is long；
Battery waiting time is generated according to first duration and charging station status information；
When generating reach the destination second according to the location information of the charging station and the second location information
It is long；
According to the shortest route time described in first duration, battery waiting time and the second duration calculation, and export institute
The shortest route time being calculated.
More preferably, described the step of battery waiting time is generated according to first duration and charging station status information, packet
It includes:
If the charging station status information received includes the quantity of full capacity reserve battery, it is determined that the battery waits
The Shi Changwei battery replacement time；
If the charging station status information received includes that the second waiting moment sequence or the described 4th wait the moment
Sequence, then judging whether there is in the second waiting moment sequence or the 4th waiting moment sequence arrives earlier than electric car
Up to the waiting moment at the charging station moment；
If it is present determining that the battery waiting time is the battery replacement time；
If it does not exist, then determining a length of battery waiting time when target；A length of described second etc. when the target
The waiting moment of first piece of battery and electric car in moment sequence is waited to reach the charging to moment sequence or the described 4th
It stands time difference at moment.
It is more preferably, described to send the step of subscribing to request to the roadside unit, comprising:
When detecting the electric car using the electricity of battery lower than the first predetermined power threshold, Xiang Suoshu trackside list
Member, which is sent, subscribes to request.
More preferably, the method also includes:
When detecting the electric car using the electricity of battery lower than the second predetermined power threshold, with the trackside list
Member establishes wireless communication connection.
More preferably, pre-stored charging station status information periodically updates in the roadside unit.
The embodiment of the invention also provides a kind of the charging station state information acquisition system based on roadside unit, the system
Including electric car, charging site server and is set to the roadside unit in roadside；Wherein, the electric car can be with the road
Side unit establishes wireless communication connection, and the roadside unit can establish wireless communication connection with the charging site server；
The charging site server, for according to the electricity of reserve battery in corresponding charging station and precharge cell
Electricity generates and is reported to the roadside unit charging station status information after establishing wireless communication connection with the roadside unit；
The precharge cell is the batteries of electric automobile to be charged such as in the charging station；
The electric car, for being wirelessly communicated after connecting in the electric car and roadside unit foundation, to institute
It states roadside unit and sends subscription request；Receive and export the charging station status information of the roadside unit feedback；
The roadside unit, the charging station status information reported for receiving and storing the charging site server,
Pre-stored charging station status information feedback is given to the electric car according to subscription request.
More preferably, the charging site server is specifically used for,
Detect the electricity of all reserve batteries, the quantity of full capacity reserve battery and non-full capacity in corresponding charging station
The quantity of reserve battery；
When the quantity of full capacity reserve battery is greater than zero, the charging station shape of the quantity including full capacity reserve battery is generated
State information；
When the quantity of full capacity reserve battery is equal to zero, following steps are executed:
The first waiting time for being full of non-full capacity reserve battery is calculated according to the electricity of non-full capacity reserve battery；
According to ascending sequence, first waiting time is ranked up, generates the first Waiting Time Sequence；Its
In, first Waiting Time Sequence is [A1,A2,...Ai,...An], AiIt is first etc. of i-th piece of non-full capacity reserve battery
To the time, n is the quantity of non-full capacity reserve battery；
Detect the electricity and quantity of precharge cell；
When the quantity for determining the precharge cell is less than the quantity of the non-full capacity reserve battery, according to described
First Waiting Time Sequence generates the second Waiting Time Sequence, generates second according to second Waiting Time Sequence and waits the moment
Sequence, and establishing includes the described second charging station status information for waiting moment sequence；Wherein, second Waiting Time Sequence
For [Am+1,Am+2,...An], described second waits moment sequence for [Am+1+E,Am+2+E,...An+ E], E is the charging station shape
The sending instant of state information, m are the quantity of the precharge cell；
When the quantity for determining the precharge cell is not less than the quantity of the non-full capacity reserve battery, according to institute
The electricity of precharge cell is stated, the third waiting time for being full of the precharge cell is calculated, it is right according to ascending sequence
The third waiting time is ranked up, and generates third Waiting Time Sequence, according to first Waiting Time Sequence and described
Third Waiting Time Sequence generates the 4th Waiting Time Sequence, generates the 4th according to the 4th Waiting Time Sequence and waits the moment
Sequence, and establishing includes the described 4th charging station status information for waiting moment sequence；
Wherein, the third Waiting Time Sequence is [B1,B2,...Bj,...Bm], BjIt is the of jth block precharge cell
Three waiting time, the 4th Waiting Time Sequence are
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1,
A1+B1+Bn+1+...+Bkn+1,
A2+B2+Bn+2+...+Bkn+2,
Ab+Bb+Bn+b+...+Bkn+b]
It is described 4th waiting moment sequence be
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1+E,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2+E,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1+ E,
A1+B1+Bn+1+...+Bkn+1+E,
A2+B2+Bn+2+...+Bkn+2+E,
Ab+Bb+Bn+b+...+Bkn+b+E]
M=kn+b, 0≤b≤n.
A kind of charging station status information acquiring method and system based on roadside unit provided in an embodiment of the present invention, it is electronic
Automobile is sent to roadside unit subscribes to request, and roadside unit believes the charging station state that pre-stored charging site server is sent
Breath is sent to electric car, and electric car receives and exports the charging station status information, so that the driver in electric car is pre-
First know charging station status information, and know reserve battery information in current time charging station in turn, is made in time as electronic vapour
The charging strategy of vehicle battery can avoid the trip for delaying driver.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of the charging station status information acquiring method provided in an embodiment of the present invention based on roadside unit；
Fig. 2 be charging site server provided in an embodiment of the present invention according to the electricity of reserve battery in corresponding charging station with
And the electricity of precharge cell generates the flow chart of the mode of charging station status information；
Fig. 3 is the flow chart of the calculation method of shortest route time provided in an embodiment of the present invention；
Fig. 4 is the signal for the charging station state information acquisition system based on roadside unit that the embodiment of the present invention also provides
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the driver in electric car know charging station status information in advance, the embodiment of the invention provides one kind
Charging station status information acquiring method and system based on roadside unit.Wherein, charging station state information acquisition system includes: electricity
Electrical automobile, charging site server and is set to the roadside unit in roadside, and electric car can be established with roadside unit and be wirelessly communicated
Connection, roadside unit can establish wireless communication connection with charging site server.
Specifically, antenna and radio frequency unit be may be provided in electric car, roadside unit and charging site server, passed through
Radio frequency unit and antenna emit radio wave and are received to realize wireless communication.For example, can be realized by WiFi technology
Communication between electric car and roadside unit is realized between roadside unit and charging site server by cellular network technologies
Communication.
Fig. 1 is the flow chart of the charging station status information acquiring method provided in an embodiment of the present invention based on roadside unit,
This method is applied to the electric car in charging station state information acquisition system comprising:
S110, after the electric car and the roadside unit establish wireless communication connection, Xiang Suoshu roadside unit hair
Subscription is sent to request, so that the roadside unit is requested pre-stored charging station status information feedback according to the subscription to institute
State electric car；Wherein, the charging station status information be by the charging site server generate and with the roadside unit
It is reported to the roadside unit after establishing wireless communication connection, the charging station status information is the charging site server root
It is generated according to the electricity of reserve battery in corresponding charging station and the electricity of precharge cell；The precharge cell is institute
The batteries of electric automobile to be charged such as state in charging station.
Specifically, charging site server is according to be charged electronic in the electricity of the reserve battery in charging station and station etc.
The electricity of the precharge cell of automobile, which calculates, generates charging station status information, and sends that information to and be set to one of roadside
Or multiple roadside units, roadside unit store the charging station status information received.When electric car passes through trackside list
Member can be in communication range after, electric car can be established with roadside unit and be communicated to connect, and electric car is sent to roadside unit
Request is subscribed to, roadside unit searches the charging station status information of storage according to the request, and is fed back to the electric car.
In real life, in electric vehicle drive, attention is often concentrated in ignoring in road conditions driver
The battery capacity of electric car cannot charge in time for battery, in order to solve this problem, described to order to roadside unit transmission
The step of readding request, comprising:
When detecting the electric car using the electricity of battery lower than the first predetermined power threshold, Xiang Suoshu trackside list
Member, which is sent, subscribes to request.
Specifically, the first predetermined power threshold is the threshold value of the minimum electricity of batteries of electric automobile, when the electricity of battery
When less than the value, illustrate battery capacity deficiency.For example, the first predetermined electricity can for battery full capacity 20% or
30%.In the present embodiment, when electric car detects itself battery capacity currently in use lower than the first predetermined power threshold,
Electric car can send from trend roadside unit and subscribe to request, to obtain charging station status information.
Preferably, in order to avoid electric car and roadside unit continually establish communication connection, to save the communication resource, institute
State method further include: and described when detecting the electric car using the electricity of battery lower than the second predetermined power threshold
Roadside unit establishes wireless communication connection.
Specifically, the second predetermined power threshold is the normal operation electricity threshold value of batteries of electric automobile, works as battery capacity
When higher than the second predetermined power threshold, illustrate that electric car without charging, can operate normally the relatively long time.Citing and
Speech, the second predetermined electricity can be the 50% or 40% of battery full capacity.
In the present embodiment, when electric car detects cells electricity lower than the second predetermined electricity, illustrate battery electricity
Amount may will affect the subsequent normal operation of electric car, and electric car can actively establish the communication between roadside unit at this time
Connection.
Preferably, pre-stored charging station status information periodically updates in roadside unit.Specifically, charging station service
Device can be spaced at regular intervals to be generated according to the electricity of the electricity of reserve battery and precharge cell in corresponding charging station
Charging station status information, and send it to roadside unit；Roadside unit receives the current charging station status information of storage, simultaneously
The charging station status information of last storage is deleted, so that standby in the more accurate current charging station of reaction of charging station status information
With the concrete condition of battery.In the present embodiment, the roadside unit period update charging station status information time interval can with fill
The time interval that power station server sends charging station status information is identical, such as 10 minutes or 5 minutes.
S120 receives and exports the charging station status information of the roadside unit feedback.
Specifically, after electric car receives the charging station status information of roadside unit feedback, the information can be exported, with
So that the driver in electric car is known charging station status information in advance, and knows reserve battery in current time charging station in turn
Information.In the present embodiment, output charging station status information can be to show charging station status information by word content or image,
Or charging station status information is played by audio.
Preferably, roadside unit can be interacted with multiple charging site servers simultaneously, and store multiple charging stations simultaneously
The charging station status information that server is sent can obtain multiple charging station status informations after electric car, which is sent, subscribes to request,
Driver is contemplated that going to some charging station is that electric car replaces battery.
Charging station status information acquiring method provided in an embodiment of the present invention based on roadside unit, electric car is to trackside
Unit, which is sent, subscribes to request, and the charging station status information that pre-stored charging site server is sent is sent to electricity by roadside unit
Electrical automobile, electric car receives and exports the charging station status information, so that the driver in electric car knows charging in advance
It stands status information, and knows reserve battery information in current time charging station in turn, make filling for batteries of electric automobile in time
Electric strategy, can avoid the trip for delaying driver.
Preferably, multiple roadside units can be set by the road, and each roadside unit can receive and store multiple charging station clothes
The charging station status information that business device is sent.Electric car during traveling, can opportunistic encounter different roadside units,
To obtain charging station status information.
For example, it is assumed that the communication range of adjacent roadside unit is without covering, and N number of roadside unit is with average distance S arrangement
On forthright, and electric car passes through these drive test units at the uniform velocity V, it is contemplated that the communication range Q of electric car, then electronic vapour
The probability that at least one roadside unit of Che Nengcong obtains charging station status information is that P can be calculated by following formula:
Wherein, H is the release cycle of charging station status information, and F is that electric car goes out initiate point to first roadside unit
Distance.It is learnt by the formula, in order to improve the probability that electric car obtains charging station status information, needs to increase communication range
Q, the average distance S of roadside unit quantity N and adjacent roadside unit, meanwhile, reduce the release cycle H of charging station status information.
The setting of roadside unit has flexibility and scalability, and the distribution of roadside unit is wider, the acquisition of charging station status information
Probability is bigger.
Charging site server is electric according to the electricity of reserve battery in corresponding charging station and precharge in order to facilitate understanding
The electricity in pond generates the process of charging station status information, and this gives following specific implementations.Fig. 2 is that the present invention is real
The charging site server for applying example offer is raw according to the electricity of reserve battery in corresponding charging station and the electricity of precharge cell
At the flow chart of the mode of charging station status information, which includes:
S210, electricity, the full capacity that the charging site server detects all reserve batteries in corresponding charging station are spare
The quantity of the quantity of battery and non-full capacity reserve battery.
Specifically, the reserve battery in charging station would generally be placed on the charging unit with electric quantity detection function, this
The electricity of each reserve battery can be reported to charging site server by a little charging units, and the site server that charges is according to each reserve battery
The quantity for the full capacity reserve battery that electricity statistics fills with and the quantity for the non-full capacity reserve battery not being full of.
S220, for the charging site server when the quantity of full capacity reserve battery is greater than zero, generating includes that full capacity is standby
With the charging station status information of the quantity of battery.
Specifically, when the site server that charges detects the quantity of full capacity reserve battery greater than zero, illustrate to charge at this time
Can be at any time in standing come charging electric car replacement battery, then the site server that charges generate charging station status information in
Quantity comprising full capacity reserve battery.When the site server that charges detects the quantity of full capacity reserve battery equal to zero, then
Execute step S230-S270.Certainly, which can also wrap in addition to the quantity for including full capacity reserve battery
Other information is included, for example, which can be the location information etc. of charging station.
S230, the charging site server is calculated according to the electricity of non-full capacity reserve battery is full of non-full capacity standby electricity
First waiting time in pond.
Specifically, charging site server can account for the percentage of total electricity according to the electricity of non-full capacity reserve battery, obtain
The percentage that total electricity is accounted for full of electricity required for the non-full capacity reserve battery, according to full of the non-full capacity reserve battery
The percentage of required electricity total electricity obtained for the first waiting time multiplied by whole electricity required time full of reserve battery.
For example, it is assumed that being 5 hours the time required to whole electricity full of reserve battery, the electricity of current non-full capacity reserve battery is to account for
The percentage of total electricity is 20%, then the percentage for accounting for total electricity full of electricity required for the non-full capacity reserve battery is
80%, then the first waiting time was 4 hours.
S240, the charging site server are ranked up first waiting time according to ascending sequence, raw
At the first Waiting Time Sequence；Wherein, the first Waiting Time Sequence can be [A1,A2,...Ai,...An], AiIt is non-full for i-th piece
First waiting time of capacity reserve battery, n are the quantity of non-full capacity reserve battery.
Specifically, charging site server is in the first waiting time for obtaining all non-full capacity reserve batteries in charging station
Afterwards, according to ascending sequence, the first waiting time of all non-full capacity reserve batteries is ranked up, generates first etc.
To time series.For example, it is assumed that n=5, the first Waiting Time Sequence can be [1,1.5,2,2.5,3].
S250, the electricity and quantity of the charging site server detection precharge cell.
Specifically, charging site server can register the electric car for going to charging station to charge, while electric car
The electricity of the precharge cell of itself can be reported to charging site server, charging site server is according to the electricity of precharge cell
Count the quantity of precharge cell.
S260, the charging site server are spare less than the non-full capacity in the quantity for determining the precharge cell
When the quantity of battery, the second Waiting Time Sequence is generated according to first Waiting Time Sequence, when waiting according to described second
Between sequence generate second wait moment sequence, and establish include it is described second wait moment sequence charging station status information；Its
In, second Waiting Time Sequence is [Am+1,Am+2,...An], described second waits moment sequence for [Am+1+E,Am+2+
E,...An+ E], E is the sending instant of the charging station status information, and m is the quantity of precharge cell.
Specifically, when the quantity of precharge cell is less than the quantity of non-full capacity reserve battery, charge site server root
The second Waiting Time Sequence is generated according to the first Waiting Time Sequence.For example, it is assumed that the quantity n of full capacity reserve battery is 5,
First Waiting Time Sequence can be [1,1.5,2,2.5,3], and the quantity m of precharge cell is 3, then first three block to charge
Non- full capacity reserve battery needs to be replaced for this 3 pieces of precharge cells after being full of, therefore can only be non-according to remaining two pieces
First waiting time of full capacity reserve battery generates charging station status information, can be by remaining two pieces of (i.e. m+1 blocks and n-th
Block) the first Waiting Time Sequence [2.5,3] of non-full capacity reserve battery for charging is as the second Waiting Time Sequence.It is false
If the sending instant E of charging station status information is noon 12:00, then second wait moment sequence for [14:30,15:00].
S270, the charging site server are standby not less than the non-full capacity in the quantity for determining the precharge cell
When with the quantity of battery, according to the electricity of the precharge cell, the third waiting time for being full of the precharge cell is calculated,
The third waiting time is ranked up according to ascending sequence, generates third Waiting Time Sequence, according to described the
One Waiting Time Sequence and the third Waiting Time Sequence generate the 4th Waiting Time Sequence, according to the 4th waiting time
Sequence generates the 4th and waits moment sequence, and establishing includes the described 4th charging station status information for waiting moment sequence.
Wherein, the third Waiting Time Sequence is [B1,B2,...Bj,...Bm], BjIt is the of jth block precharge cell
Three waiting time, the 4th Waiting Time Sequence are
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1,
A1+B1+Bn+1+...+Bkn+1,
A2+B2+Bn+2+...+Bkn+2,
Ab+Bb+Bn+b+...+Bkn+b]
It is described 4th waiting moment sequence be
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1+E,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2+E,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1+ E,
A1+B1+Bn+1+...+Bkn+1+E,
A2+B2+Bn+2+...+Bkn+2+E,
Ab+Bb+Bn+b+...+Bkn+b+E]
M=kn+b, 0≤b≤n.
Specifically, if the quantity m of precharge cell is not less than the quantity n of non-full capacity reserve battery, charging station service
Device calculates the third waiting time for being full of precharge cell, specific calculation is the same as above-mentioned according to the electricity of precharge cell
The calculation of first waiting time.Charging site server is ranked up the third waiting time according to ascending sequence,
Generate third Waiting Time Sequence.
For example, it is assumed that the quantity n=5 of non-full capacity reserve battery, the quantity m=12 of precharge cell, then k=2,
B=2.
The non-full capacity reserve battery of 5 pieces to charge is respectively necessary for after fully charged as the 5th piece of precharge cell of 1-
It is replaced；The 5th piece of precharge cell of replaced 1- needs to carry out for the 10th piece of precharge cell of 6- after filling
Replacement；The the 6th, 7 piece of precharge cell is changed to need to be replaced for the 11st, 12 piece of precharge cell after filling.Therefore,
Charging station status information is only generated according to the third waiting time of the precharge cell after the 8th piece.8th block of precharge electricity
Pond is (k-1) n+b+1 block precharge cell, to be the 3rd piece of non-full capacity full of the time needed for the 8th piece of precharge cell
First waiting time A of reserve batteryb+1, the third waiting time B of the 3rd piece of precharge cellb+1With the 8th piece of precharge cell
Third waiting time B(k-1)n+b+1Sum therefore will be full of the time (i.e. the 4th waiting time) needed for the 8th piece of precharge cell
For Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1.Similarly, the 4th waiting time of the 10th piece of precharge cell is Ab+n-1+Bb+n-1+
B2n+b-1+...+Bkn+b-1。
And when being waited full of first that the time needed for the 11st piece of precharge cell is the 1st piece of non-full capacity reserve battery
Between A1, the 1st piece of precharge cell third waiting time B1, the 6th piece of precharge cell third waiting time Bn+1With the 11st piece
The third waiting time B of precharge cellkn+1Sum, i.e., the 4th waiting time of the 11st piece precharge cell is A1+B1+Bn+1
+...+Bkn+1；Similarly, the 4th waiting time of the 12nd piece of (i.e. m block) precharge cell is Ab+Bb+Bn+b+...+Bkn+b。
In conclusion being according to the 4th waiting time of calculating available 4th Waiting Time Sequence
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1
A1+B1+Bn+1+...+Bkn+1,
A2+B2+Bn+2+...+Bkn+2,
Ab+Bb+Bn+b+...+Bkn+b]
The 4th waiting time of each of 4th Waiting Time Sequence is added charging station status information by charging site server
Sending instant E obtain the 4th waiting moment sequence, and establish include the 4th wait moment sequence charging station status information.
In the present embodiment, second can be calculated by following procedure waits moment sequence or the 4th waiting moment sequence.
Defined nucleotide sequence NC=[A1,A2,...Ai,...Am], the time series that the battery to charge is full of, i.e., first etc.
To time series, ATS sequence is that the second waiting moment sequence of output or the 4th wait moment sequence, and TLIST sequence is interim
Information stores sequence, Nw=[B1,B2,...Bj,...Bm] it is the time series that precharge cell is full of, i.e. third waiting time sequence
Column.
In the present embodiment, when the quantity of full capacity reserve battery is greater than zero in charging station, charging site server generates packet
The charging station status information of the quantity of the reserve battery containing full capacity；The quantity of full capacity reserve battery is equal to zero in charging station
When, charging site server generates the charging station status information for waiting moment sequence or the 4th waiting moment sequence comprising second.It fills
The charging station status information of generation is sent to roadside unit by power station server, so that electric car can after sending subscription request
Charging station status information is obtained and exported, driver is made to know that current charging station can replace the specific of battery for electric car in advance
Time, driver can decide whether that charging station is gone to charge according to own situation.
In actual life, electric car needs to go to some specific destination, from the current location of electric car to
There may be multiple charging stations in path between destination, electric car can be known in the path by roadside unit respectively to charge
The different charging station status informations stood, simultaneously as the position of each charging station is different, electric car goes to different charging stations
Time is different, and the time from each charging station to destination is also different, therefore, how to select to go to which charging station for electric car
Replace battery so that journey time it is most short be a urgent problem to be solved.In order to solve this problem, the method also includes:
A1, the acquisition electric car itself is presently in the corresponding first location information in position and destination is corresponding
Second location information.
Specifically, first location information is the location information that electric car is currently located, and second location information is destination
The location information at place, electric car can be obtained using the application software such as Baidu map, Google Maps first location information and
Second location information.
A2, according to the first location information, the charging station status information and the second location information, generate simultaneously
Output reaches the shortest route time of the destination.
In the present embodiment, charging station status information further includes the location information of charging station.Shortest route in order to facilitate understanding
The calculation method of time, step A2 may include step S310-S340.
Fig. 3 is the flow chart of the calculation method of shortest route time provided in an embodiment of the present invention, this method comprises:
S310 is generated according to the location information of the first location information and the charging station and is reached the of the charging station
One duration.
Specifically, electric car can call itself after obtaining the location information of first location information and charging station
The navigation software run, when driving to the stroke of charging station to calculate electric car by navigation software from current location
Between, and the trip time is determined as the first duration.For example: the navigation software that the electric car is run itself can be
Baidu map, Google Maps etc. are with the application software for calculating journey time.
S320 generates battery waiting time according to first duration and charging station status information.
The calculation method of shortest route time in order to facilitate understanding, step S320 may include step B1-B2.
If B1, the charging station status information received include the quantity of full capacity reserve battery, it is determined that the battery
Waiting time is the battery replacement time.
If B2, the charging station status information received include the second waiting moment sequence or the 4th waiting
Sequence is carved, then judges that described second waits in moment sequence or the 4th waiting moment sequence with the presence or absence of earlier than electric car
Reach the waiting moment at the charging station moment；
B3, if it is present determining that battery waiting time is the battery replacement time；
B4, if it does not exist, then a length of battery waiting time when determining target；A length of described second when the target
The waiting moment of first piece of battery in moment sequence or the 4th waiting moment sequence is waited to fill with described in electric car arrival
The time difference at power station moment.
Specifically, electric car can detect the particular content of the information after the charging station status information received, if
Charging station status information includes the quantity of full capacity reserve battery, then illustrates there is full capacity reserve battery in the charging station, electronic
Automobile can replace battery at any time without waiting, accordingly, it can be determined that battery waiting time is zero, if it is considered that the battery replacement time,
Then battery waiting time is zero plus the battery replacement time.
If charging station status information includes ATS sequence (waiting moment sequence or the 4th waiting moment sequence for second),
Any one searched in ATS sequence waits moment ATSi, judgement whether exist earlier than electric car reach charging station when
Carve the waiting moment ATS of Ti, if it does, battery can be replaced at any time without waiting after illustrating that electric car reaches charging station, because
This, it may be determined that battery waiting time is the battery replacement time.
If it does not, can by the waiting moment (at the time of i.e. battery is full of) of first piece of battery in ATS sequence with it is electronic
Automobile reaches time difference ATS at the time of charging stationi- T is used as battery waiting time.At the time of electric car arrival charging station
Time difference can obtain according to the first duration plus the charging station status information time of reception.
In the present embodiment, battery waiting time can be calculated by following procedure:
It defines, the number of element is L in ATS sequence, i.e. ATS=[C1,C2,...Cj,...CL],
Returning to (ATS.GET (0)-electric car arrival time+battery replacement time) ATS.GET (0) is in ATS sequence
First element.
S330 is generated according to the location information of the charging station and the second location information and is reached the of the destination
Two durations.
Specifically, electric car can input the two after the location information and second location information for obtaining charging station
In the map software with calculating journey time such as Baidu map, Google Maps, to would know that electric car from charging station
It is determined as the second duration to the journey time of destination, and by the trip time.
S340, according to the shortest route time described in first duration, battery waiting time and the second duration calculation, and it is defeated
The shortest route time being calculated out.
Specifically, if electric car to charging station i first when a length of Ti, charging station i corresponding battery waiting time is
Wi, from charging station to destination second when a length of Pi, while the time of battery altering is L.Therefore electric car arrives at the destination
Time be Wi+Ti+L+Pi。
Each charging station of electric car from calculating chooses the shortest time in the corresponding time arrived at the destination, and should
The shortest time is determined as the shortest route time, which is determined as optimal charging station, electricity
The information of shortest route time and optimal charging station that electrical automobile output obtains, make driver make the decision for going to charging station.
In the present embodiment, by calculating the shortest route time and determining optimal charging station, driver can be further helped
More preferably charging strategy is made, the journey time of driver is shortened.Meanwhile charging strategy is connect by electric car itself basis
What the charging station status information received was made, without reporting the position of electric car itself to charging site server and roadside unit
Information, destination and electric car id information, to ensure that the personal secrets of driver.
The charging station state information acquisition system based on roadside unit that the embodiment of the invention also provides a kind of, Fig. 4 are this
The schematic diagram for the charging station state information acquisition system based on roadside unit that inventive embodiments also provide.The system includes charging
Site server 410, electric car 420 and the roadside unit 430 for being set to roadside；Wherein, the electric car can with it is described
Roadside unit establishes wireless communication connection, and the roadside unit can establish wireless communication connection with the charging site server；
The charging site server 410, for the electricity and precharge electricity according to reserve battery in corresponding charging station
The electricity in pond generates and is reported to the roadside unit charging station state after establishing wireless communication connection with the roadside unit
Information；The precharge cell is the batteries of electric automobile to be charged such as in the charging station；
The electric car 420, for being wirelessly communicated after connecting in the electric car and roadside unit foundation, to
The roadside unit, which is sent, subscribes to request；Receive and export the charging station status information of the roadside unit feedback；
The roadside unit 430, the charging station state letter reported for receiving and storing the charging site server
Breath gives pre-stored charging station status information feedback to the electric car according to subscription request.
Charging station state information acquisition system provided in an embodiment of the present invention based on roadside unit, electric car is to trackside
Unit, which is sent, subscribes to request, and the charging station status information that pre-stored charging site server is sent is sent to electricity by roadside unit
Electrical automobile, electric car receives and exports the charging station status information, so that the driver in electric car knows charging in advance
It stands status information, and knows reserve battery information in current time charging station in turn, make filling for batteries of electric automobile in time
Electric strategy, can avoid the trip for delaying driver.
Preferably, the charging site server 410 is specifically used for,
Detect the electricity of all reserve batteries, the quantity of full capacity reserve battery and non-full capacity in corresponding charging station
The quantity of reserve battery；
When the quantity of full capacity reserve battery is greater than zero, the charging station shape of the quantity including full capacity reserve battery is generated
State information；
When the quantity of full capacity reserve battery is equal to zero, following steps are executed:
The first waiting time for being full of non-full capacity reserve battery is calculated according to the electricity of non-full capacity reserve battery；
According to ascending sequence, first waiting time is ranked up, generates the first Waiting Time Sequence；Its
In, first Waiting Time Sequence is [A1,A2,...Ai,...An], AiIt is first etc. of i-th piece of non-full capacity reserve battery
To the time, n is the quantity of non-full capacity reserve battery；
Detect the electricity and quantity of precharge cell；
When the quantity for determining the precharge cell is less than the quantity of the non-full capacity reserve battery, according to described
First Waiting Time Sequence generates the second Waiting Time Sequence, generates second according to second Waiting Time Sequence and waits the moment
Sequence, and establishing includes the described second charging station status information for waiting moment sequence；Wherein, second Waiting Time Sequence
For [Am+1,Am+2,...An], described second waits moment sequence for [Am+1+E,Am+2+E,...An+ E], E is the charging station shape
The sending instant of state information, m are the quantity of the precharge cell；
When the quantity for determining the precharge cell is not less than the quantity of the non-full capacity reserve battery, according to institute
The electricity of precharge cell is stated, the third waiting time for being full of the precharge cell is calculated, it is right according to ascending sequence
The third waiting time is ranked up, and generates third Waiting Time Sequence, according to first Waiting Time Sequence and described
Third Waiting Time Sequence generates the 4th Waiting Time Sequence, generates the 4th according to the 4th Waiting Time Sequence and waits the moment
Sequence, and establishing includes the described 4th charging station status information for waiting moment sequence；
Wherein, the third Waiting Time Sequence is [B1,B2,...Bj,...Bm], BjIt is the of jth block precharge cell
Three waiting time, the 4th Waiting Time Sequence are
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1,
A1+B1+Bn+1+...+Bkn+1,
A2+B2+Bn+2+...+Bkn+2,
Ab+Bb+Bn+b+...+Bkn+b]
It is described 4th waiting moment sequence be
[Ab+1+Bb+1+Bn+b+1+...+B(k-1)n+b+1+E,
Ab+2+Bb+2+Bn+b+2+...+B(k-1)n+b+2+E,
Ab+n-1+Bb+n-1+B2n+b-1+...+Bkn+b-1+ E,
A1+B1+Bn+1+...+Bkn+1+E,
A2+B2+Bn+2+...+Bkn+2+E,
Ab+Bb+Bn+b+...+Bkn+b+E]
M=kn+b, 0≤b≤n.
In the present embodiment, when the quantity of full capacity reserve battery is greater than zero in charging station, charging site server generates packet
The charging station status information of the quantity of the reserve battery containing full capacity；The quantity of full capacity reserve battery is equal to zero in charging station
When, charging site server generates the charging station status information for waiting moment sequence or the 4th waiting moment sequence comprising second.It fills
The charging station status information of generation is sent to roadside unit by power station server, so that electric car can after sending subscription request
Charging station status information is obtained and exported, driver is made to know that current charging station can replace the specific of battery for electric car in advance
Time, driver can decide whether that charging station is gone to charge according to own situation.
Preferably, the electric car is specifically used for, and obtains the electric car and itself is presently in position corresponding
The corresponding second location information of one location information and destination；Believed according to the first location information, the charging station state
Breath and the second location information, generate and export the shortest route time for reaching the destination.
Preferably, the charging station status information further includes the location information of charging station；The electric car is specifically used for,
The first duration for reaching the charging station is generated according to the location information of the first location information and the charging station；According to institute
It states the first duration and charging station status information generates battery waiting time；According to the location information of the charging station and described second
Location information generates the second duration for reaching the destination；According to first duration, battery waiting time and the second duration
The shortest route time is calculated, and exports the shortest route time be calculated.
Preferably, the electric car is specifically used for, if the charging station status information received includes that full capacity is spare
The quantity of battery, it is determined that the battery waiting time is the battery replacement time；If the charging station status information packet received
It includes described second and waits moment sequence or the 4th waiting moment sequence, then judge that described second waits moment sequence or described
With the presence or absence of the waiting moment for reaching the charging station moment earlier than electric car in 4th waiting moment sequence；If it does,
Then determine that the battery waiting time is the battery replacement time；If it does not exist, then determining that a length of battery waits when target
Duration；When the target a length of described second wait moment sequence or the described 4th wait first piece of battery in moment sequence etc.
The time difference at the charging station moment is reached to moment and electric car.
In the present embodiment, by calculating the shortest route time and determining optimal charging station, driver can be further helped
More preferably charging strategy is made, the journey time of driver is shortened.Meanwhile charging strategy is connect by electric car itself basis
What the charging station status information received was made, without reporting the position of electric car itself to charging site server and roadside unit
Information, destination and electric car id information, to ensure that the personal secrets of driver.
Preferably, the electric car is specifically used for, when detecting the electric car using the electricity of battery lower than the
When one predetermined power threshold, Xiang Suoshu roadside unit, which is sent, subscribes to request.
Preferably, the electric car is specifically also used to, when detecting that the electric car is lower than using the electricity of battery
When the second predetermined power threshold, wireless communication connection is established with the roadside unit.
Preferably, pre-stored charging station status information periodically updates in the roadside unit.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of charging station status information acquiring method based on roadside unit, which is characterized in that be applied to charging station state and believe
The electric car in acquisition system is ceased, the system also includes charging site servers and the roadside unit for being set to roadside；Wherein,
The electric car can establish wireless communication connection with the roadside unit, and the roadside unit can take with the charging station
Device foundation wireless communication of being engaged in connects；
The described method includes:
After the electric car and the roadside unit establish wireless communication connection, Xiang Suoshu roadside unit sends to subscribe to and ask
It asks, so that the roadside unit is requested pre-stored charging station status information feedback according to the subscription to the electronic vapour
Vehicle；Wherein, the charging station status information is to be generated by the charging site server and established wirelessly with the roadside unit
The roadside unit is reported to after communication connection, the charging station status information is the charging site server according to corresponding to
The electricity of reserve battery and the electricity of precharge cell are generated in charging station；The precharge cell is the charging station
The batteries of electric automobile to be charged such as interior；
Receive and export the charging station status information of the roadside unit feedback.
2. the method according to claim 1, wherein the charging site server is according to standby in corresponding charging station
The mode of the charging station status information is generated with the electricity of the electricity of battery and precharge cell, comprising:
The charging site server detects the quantity of the electricity of all reserve batteries, full capacity reserve battery in corresponding charging station
And the quantity of non-full capacity reserve battery；
The charging site server generates the number including full capacity reserve battery when the quantity of full capacity reserve battery is greater than zero
The charging station status information of amount；
The charging site server executes following steps when the quantity of full capacity reserve battery is equal to zero:
The charging site server is calculated according to the electricity of non-full capacity reserve battery is full of the first of non-full capacity reserve battery
Waiting time；
The charging site server is ranked up first waiting time according to ascending sequence, generates first etc.
To time series；Wherein, first Waiting Time Sequence is [A1,A2,...Ai,...An], AiIt is spare for i-th piece of non-full capacity
First waiting time of battery, n are the quantity of non-full capacity reserve battery；
The electricity and quantity of the charging site server detection precharge cell；
The charging site server is less than the number of the non-full capacity reserve battery in the quantity for determining the precharge cell
When amount, the second Waiting Time Sequence is generated according to first Waiting Time Sequence, it is raw according to second Waiting Time Sequence
Moment sequence is waited at second, and establishing includes the described second charging station status information for waiting moment sequence；Wherein, described
Two Waiting Time Sequences are [Am+1,Am+2,...An], described second waits moment sequence for [Am+1+E,Am+2+E,...An+ E], E
For the sending instant of the charging station status information, m is the quantity of the precharge cell；
The charging site server is in the quantity for determining the precharge cell not less than the non-full capacity reserve battery
When quantity, according to the electricity of the precharge cell, the third waiting time for being full of the precharge cell is calculated, according to by small
The third waiting time is ranked up to big sequence, generates third Waiting Time Sequence, when being waited according to described first
Between sequence and the third Waiting Time Sequence generate the 4th Waiting Time Sequence, generated according to the 4th Waiting Time Sequence
4th waits moment sequence, and establishing includes the described 4th charging station status information for waiting moment sequence；
Wherein, the third Waiting Time Sequence is [B1,B2,...Bj,...Bm], BjFor the third etc. of jth block precharge cell
To the time, the 4th Waiting Time Sequence is
It is described 4th waiting moment sequence be
M=kn+b, 0≤b≤n.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
It obtains the electric car and itself is presently in the corresponding second of the corresponding first location information in position and destination
Confidence breath；
According to the first location information, the charging station status information and the second location information, generates and be output to
Up to the shortest route time of the destination.
4. according to the method described in claim 3, it is characterized in that, the charging station status information further includes the position of charging station
Information；
It is described according to the first location information, the charging station status information and the second location information, generate simultaneously defeated
The step of reaching the shortest route time of the destination out, comprising:
The first duration for reaching the charging station is generated according to the location information of the first location information and the charging station；
Battery waiting time is generated according to first duration and charging station status information；
The second duration for reaching the destination is generated according to the location information of the charging station and the second location information；
According to the shortest route time described in first duration, battery waiting time and the second duration calculation, and exports and calculated
The obtained shortest route time.
5. according to the method described in claim 4, it is characterized in that, described according to first duration and charging station status information
The step of generating battery waiting time, comprising:
If the charging station status information received includes the quantity of full capacity reserve battery, it is determined that the battery waiting time
For the battery replacement time；
If the charging station status information received includes that the second waiting moment sequence or the described 4th wait moment sequence,
Then judge that described second waits in moment sequence or the 4th waiting moment sequence with the presence or absence of earlier than electric car arrival institute
State the waiting moment at charging station moment；
If it is present determining that the battery waiting time is the battery replacement time；
If it does not exist, then determining a length of battery waiting time when target；When the target when a length of described second waiting
Carve sequence or it is described 4th wait moment sequence in first piece of battery the waiting moment and electric car reach the charging station when
The time difference at quarter.
6. the method according to claim 1, wherein described send the step for subscribing to request to the roadside unit
Suddenly, comprising:
When detecting the electric car using the electricity of battery lower than the first predetermined power threshold, Xiang Suoshu roadside unit hair
Subscription is sent to request.
7. the method according to claim 1, wherein the method also includes:
When detecting the electric car using the electricity of battery lower than the second predetermined power threshold, built with the roadside unit
Vertical wireless communication connection.
8. the method according to claim 1, wherein pre-stored charging station state letter in the roadside unit
Breath periodically updates.
9. a kind of charging station state information acquisition system based on roadside unit, which is characterized in that the system comprises electronic vapour
Vehicle, charging site server and is set to the roadside unit in roadside；Wherein, the electric car can be established with the roadside unit
Wireless communication connection, the roadside unit can establish wireless communication connection with the charging site server；
The charging site server, for according to the electricity of reserve battery in corresponding charging station and the electricity of precharge cell
It generates and is reported to the roadside unit charging station status information after establishing wireless communication connection with the roadside unit；It is described
Precharge cell is the batteries of electric automobile to be charged such as in the charging station；
The electric car, for being wirelessly communicated after connecting in the electric car and roadside unit foundation, the road Xiang Suoshu
Side unit, which is sent, subscribes to request；Receive and export the charging station status information of the roadside unit feedback；
The roadside unit, the charging station status information reported for receiving and storing the charging site server, according to
The subscription request gives pre-stored charging station status information feedback to the electric car.
10. system according to claim 9, which is characterized in that the charging site server is specifically used for,
It is spare to detect the electricity of all reserve batteries, the quantity of full capacity reserve battery and non-full capacity in corresponding charging station
The quantity of battery；
When the quantity of full capacity reserve battery is greater than zero, the charging station state letter of the quantity including full capacity reserve battery is generated
Breath；
When the quantity of full capacity reserve battery is equal to zero, following steps are executed:
The first waiting time for being full of non-full capacity reserve battery is calculated according to the electricity of non-full capacity reserve battery；
According to ascending sequence, first waiting time is ranked up, generates the first Waiting Time Sequence；Wherein,
First Waiting Time Sequence is [A1,A2,...Ai,...An], AiWhen being waited for the first of i-th piece of non-full capacity reserve battery
Between, n is the quantity of non-full capacity reserve battery；
Detect the electricity and quantity of precharge cell；
When the quantity for determining the precharge cell is less than the quantity of the non-full capacity reserve battery, according to described first
Waiting Time Sequence generates the second Waiting Time Sequence, generates second according to second Waiting Time Sequence and waits moment sequence
Column, and establishing includes the described second charging station status information for waiting moment sequence；Wherein, second Waiting Time Sequence is
[Am+1,Am+2,...An], described second waits moment sequence for [Am+1+E,Am+2+E,...An+ E], E is the charging station state
The sending instant of information, m are the quantity of the precharge cell；
When the quantity for determining the precharge cell is not less than the quantity of the non-full capacity reserve battery, according to described pre-
The electricity of rechargeable battery calculates the third waiting time for being full of the precharge cell, according to ascending sequence to described
The third waiting time is ranked up, and third Waiting Time Sequence is generated, according to first Waiting Time Sequence and the third
Waiting Time Sequence generates the 4th Waiting Time Sequence, generates the 4th according to the 4th Waiting Time Sequence and waits moment sequence
Column, and establishing includes the described 4th charging station status information for waiting moment sequence；
Wherein, the third Waiting Time Sequence is [B1,B2,...Bj,...Bm], BjFor the third etc. of jth block precharge cell
To the time, the 4th Waiting Time Sequence is
It is described 4th waiting moment sequence be
M=kn+b, 0≤b≤n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096870.9A CN106515494B (en) | 2016-12-02 | 2016-12-02 | A kind of charging station status information acquiring method and system based on roadside unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096870.9A CN106515494B (en) | 2016-12-02 | 2016-12-02 | A kind of charging station status information acquiring method and system based on roadside unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106515494A CN106515494A (en) | 2017-03-22 |
| CN106515494B true CN106515494B (en) | 2019-03-26 |
Family
ID=58354588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611096870.9A Active CN106515494B (en) | 2016-12-02 | 2016-12-02 | A kind of charging station status information acquiring method and system based on roadside unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106515494B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108307347B (en) * | 2017-05-18 | 2021-03-30 | 哈尔滨工程大学 | Distributed electric vehicle charging information distribution method based on vehicle-mounted ad hoc network |
| CN107392336B (en) * | 2017-07-17 | 2021-04-02 | 哈尔滨工程大学 | Reservation-based distributed electric vehicle charging scheduling method in intelligent transportation |
| CN108528233A (en) * | 2018-02-28 | 2018-09-14 | 哈尔滨工程大学 | The multifactor charging method of electric vehicle of energy information is considered in a kind of intelligent transportation |
| CN108909514A (en) * | 2018-07-27 | 2018-11-30 | 杭州蓝芯科技有限公司 | More AGV power management systems and method based on automatic battery replacement |
| CN109606187A (en) * | 2018-12-05 | 2019-04-12 | 北京悦畅科技有限公司 | A kind of bootstrap technique and device of automobile charging |
| US20210049713A1 (en) | 2019-08-13 | 2021-02-18 | Honda Motor Co., Ltd. | Systems and methods for providing reserved charging sessions |
| CN113928172B (en) * | 2021-10-22 | 2023-12-15 | 上海融和智电新能源有限公司 | Intelligent power transmission method and system for mobile power transmission vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624917A (en) * | 2012-03-29 | 2012-08-01 | 杨涛 | Privacy protection system based on broadcast and attribute encryption technology |
| CN102768768A (en) * | 2011-05-06 | 2012-11-07 | 深圳市金溢科技有限公司 | Intelligent traffic service system |
| EP2889176A3 (en) * | 2013-12-27 | 2015-11-11 | Doosan Heavy Industries & Construction Co. Ltd. | Battery exchange station and method of operating battery exchange station |
| CN105515133A (en) * | 2016-02-18 | 2016-04-20 | 福安市广源机电有限公司 | Charging method for pure electric taxi, intelligent management facility and method |
| CN105844432A (en) * | 2016-05-01 | 2016-08-10 | 上海大学 | VANET based electric automobile charge scheduling system and method |
-
2016
- 2016-12-02 CN CN201611096870.9A patent/CN106515494B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768768A (en) * | 2011-05-06 | 2012-11-07 | 深圳市金溢科技有限公司 | Intelligent traffic service system |
| CN102624917A (en) * | 2012-03-29 | 2012-08-01 | 杨涛 | Privacy protection system based on broadcast and attribute encryption technology |
| EP2889176A3 (en) * | 2013-12-27 | 2015-11-11 | Doosan Heavy Industries & Construction Co. Ltd. | Battery exchange station and method of operating battery exchange station |
| CN105515133A (en) * | 2016-02-18 | 2016-04-20 | 福安市广源机电有限公司 | Charging method for pure electric taxi, intelligent management facility and method |
| CN105844432A (en) * | 2016-05-01 | 2016-08-10 | 上海大学 | VANET based electric automobile charge scheduling system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106515494A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106515494B (en) | A kind of charging station status information acquiring method and system based on roadside unit | |
| CN102074978B (en) | Charging and replacing power station, charging and replacing control method and system and operation monitoring system | |
| CN102724738B (en) | Multimode terminal and method and device for selecting resident network for multimode terminal | |
| CN106447129B (en) | A kind of efficient charging station recommended method based on quick charge stake | |
| CN101895906B (en) | Mobile terminal and method for processing communication between same and gateway | |
| CN105398347A (en) | Electric vehicle intelligent queuing method capable of improving charging efficiency | |
| JP5494270B2 (en) | Information providing apparatus and information providing method | |
| US20120166012A1 (en) | Power supply control method, a power mangement method, and a power system | |
| CN204809906U (en) | Remove energy storage charging device and remove energy storage charging system | |
| JP2015524651A (en) | Apparatus and method for controlling charge amount balancing operation of secondary battery cell | |
| CN205239173U (en) | A intelligent queueing system for electric automobile charges | |
| JP2019095196A (en) | System, method, and program for guiding charging facility | |
| CN106912084A (en) | A kind of method and apparatus for determining WLAN access points | |
| CN110562087B (en) | Method and device for acquiring working state of charging pile and vehicle | |
| CN105101471A (en) | Data transmission method, device and intelligent equipment | |
| CN105990861A (en) | Device including charging battery and energy management method thereof | |
| Wang et al. | Software defined Wi-V2G: A V2G network architecture | |
| CN111862405A (en) | Communication mode setting method, device, equipment and storage medium of intelligent lock | |
| CN110015095A (en) | The method and apparatus that a kind of pair of movable equipment charges | |
| CN108215881A (en) | One kind is based on big dipper module charging pile control system | |
| CN104991191A (en) | System and method of dynamically detecting mobile terminal battery capacity | |
| CN207257403U (en) | A kind of intelligent charge system for prompting based on monitoring system | |
| WO2022052043A1 (en) | Vehicle charging method and apparatus | |
| CN205417232U (en) | Electric automobile and battery package that is used for electric automobile | |
| WO2022179455A1 (en) | Cell data transmission method and apparatus, and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |