CN108897207A - A kind of method that onboard navigation system sets the local time automatically - Google Patents
A kind of method that onboard navigation system sets the local time automatically Download PDFInfo
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- CN108897207A CN108897207A CN201810838744.9A CN201810838744A CN108897207A CN 108897207 A CN108897207 A CN 108897207A CN 201810838744 A CN201810838744 A CN 201810838744A CN 108897207 A CN108897207 A CN 108897207A
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- time
- navigation system
- local time
- onboard navigation
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G7/00—Synchronisation
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Abstract
The invention discloses a kind of methods that onboard navigation system sets the local time automatically, including：Onboard navigation system is sent by local time zone, time, date information and UTC time；The onboard navigation system parses the data received, extracts local time zone, time, date information and UTC time respectively；According to local time zone information, the daylight-saving time calculation formula of this area is searched in algorithms library；In conjunction with local time zone, the ground daylight-saving time calculation formula, UTC time, the local time is calculated；The calculated local time is compared with the local time that parsing extracts, if coincideing, generates local time algorithm；The automatic setting to the local time can be completed according to local time zone, time, date information and UTC time in the onboard navigation system.Onboard navigation system is realized to the pre-setting function automatically of local time zone and time using the technical solution, transplantability is strong, and development cost reduces.
Description
Technical field
The present invention relates to vehicle technology field, in particular to a kind of onboard navigation system sets the side of local time automatically
Method.
Background technique
With the rise of domestic automobile independent brand and the gradually saturation of domestic motor market, depot of more and more country
Select overseas market as following business development direction.Along with the overseas enlargement of independent brand, the vehicle-mounted of configuration of automobiles is led
Therefore boat system also produces corresponding adaptation demand.To the adaptation of exported product in addition to consider local national legislation, hand over
Drift then, user's habit it is outer, there are one important adaptation demands, exactly set the local time.
For domestic project, onboard navigation system only needs to combine from GPS (Global Positioning System：Entirely
Ball positioning system) obtain UTC (Dinated Universal Time：Coordinated Universal Time(UTC)) time and Chinese time zone, Ji Keshe
Determine the local time.And for overseas project is exported, designer is it must be appreciated which country and area product specifically export to, so
Afterwards according to the time zone on the ground and daylight-saving time, the local time algorithm on the ground is written in system software in advance, to realize locality
The set-up function of time.Or increase network savvy in onboard navigation system, when directly acquiring locality by network server
Between.
The first scheme lacks reusability at present, and system development quotient needs to carry out algorithm for different countries and area
Design and adaptation work, increase development cost；And second scheme needs to increase network savvy, not only software development investment increases
Add, and hardware cost also improves.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of method that onboard navigation system sets the local time automatically, realizes
For onboard navigation system to the pre-setting function automatically of local time zone and time, transplantability is strong, and development cost reduces.
The method that a kind of onboard navigation system provided in an embodiment of the present invention sets the local time automatically, including：
Onboard navigation system is sent by local time zone, time, date information and UTC time；
The onboard navigation system parses the data received, extracts local time zone, time, date information respectively
And UTC time；According to local time zone information, the daylight-saving time calculation formula of this area is searched in algorithms library；In conjunction with local time zone,
The ground daylight-saving time calculation formula, UTC time, calculate the local time；The calculated local time is worked as with what parsing extracted
The ground time is compared, if coincideing, generates local time algorithm；The onboard navigation system is according to local time zone, time, day
The automatic setting to the local time can be completed in phase information and UTC time.
Optionally, mobile phone is sent by local time zone, time, date information time；Mobile phone is by bluetooth connection to vehicle-mounted
Local time zone, time, date information are sent onboard navigation system by navigation system, mobile phone.
Optionally, UTC time information is provided to the onboard navigation system by GPS.
Optionally, after local time algorithm generates, the UTC time provided using GPS can set the local time, including：
The onboard navigation system system obtains UTC time；When the onboard navigation system loads the locality generated by Bluetooth of mobile phone
Between algorithm；By local time algorithm and real-time UTC time, the local time is calculated, the onboard navigation system setting is worked as
The ground time.
Optionally, the onboard navigation system is in subsequent use process, if again through bluetooth connection mobile phone, it can be to working as
Ground time algorithm is updated.
Optionally, mobile operator server is sent local time zone, time, date information in one's hands by NITZ agreement
Machine.
Optionally, mobile phone gives the data forwarding received to the onboard navigation system by Bluetooth agreement.
Therefore using the present embodiment technical solution, due to the NITZ protocol data that is provided using mobile operator and
Bluetooth function realizes that onboard navigation system to the pre-setting function automatically of local time zone and time, only develops a set of algorithm, nothing
Need to be for the individually designed time algorithm of country variant and area, transplantability is strong, and software management difficulty decline, development cost reduces,
Without increasing additional hardware cost.
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 without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that a kind of Bluetooth of mobile phone provided by the invention automatically generates local time algorithm；
Fig. 2 is a kind of method flow diagram for automatically generating local time algorithm provided by the invention；
Fig. 3 is a kind of method flow diagram for setting the local time provided by the invention.
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.
Embodiment：
The present embodiment provides a kind of methods that onboard navigation system sets the local time automatically, as shown in Figure 1, including：
User mobile phone must access SIM (the Subscriber Identification of local mobile operator
Module：Subscriber identification card) card, or accessed the mobile network that local mobile operator is provided, mobile operator service
Device passes through NITZ (Network Identity and Time Zone：Network identity and time zone) agreement, by local time zone, when
Between, date information be handed down to mobile phone, mobile phone, to onboard navigation system, and passes through Bluetooth agreement, general by bluetooth connection
NITZ data forwarding is to onboard navigation system；By NMEA, (NMEA is National Marine Electronics to GPS
The abbreviation of Association is the abbreviation of National Marine Electronics association, is the unified RTCM of GPS navigation equipment now
(Radio Technical Commission for Maritime services：International ocean shipping cause radio technology committee member
Meeting) standard agreement) agreement, current UTC time is sent to onboard navigation system.
As shown in Fig. 2, the onboard navigation system judges whether Bluetooth switch is opened, if bluetooth state is to open, under execution
One step, otherwise terminates process；Further judgement, whether the onboard navigation system has passed through bluetooth connection to mobile phone, if connecting,
It performs the next step, otherwise terminates process；The onboard navigation system issues mobile operation to handset requests by Bluetooth
The NITZ data that quotient provides；The onboard navigation system obtains the NMEA data that GPS module provides, and extracts UTC time therein.
The onboard navigation system parses the NITZ data received, extracts local time zone, time a, day respectively
Phase information and UTC time；The time zone in local library, the corresponding daylight-saving time algorithm in area are loaded, according to local time zone information, inside
Set the daylight-saving time calculation formula that this area is searched in daylight-saving time algorithms library；From GPS receiver to NMEA protocol data in extract UTC
Time；In conjunction with local time zone, the ground daylight-saving time calculation formula, UTC time, local time b is calculated；When will be calculated local
Between b be compared with the local time a that extracts of parsing, if coincideing, generate local time algorithm.The local time algorithm
After determination, subsequent of the onboard navigation system needs to obtain the UTC time of GPS offer, can be completed to local time b from
Dynamic setting.When next bluetooth connection, local time algorithm can be updated automatically.
The onboard navigation system sets the local time, as shown in figure 3, including：The onboard navigation system system obtains
UTC time；The onboard navigation system loads the local time algorithm generated by Bluetooth of mobile phone；By local time algorithm and
Real-time UTC time, calculates local time b, and the onboard navigation system sets the local time.The onboard navigation system exists
In subsequent use process, if can be updated to local time algorithm again through bluetooth connection mobile phone.
The NITZ protocol data and Bluetooth function that the present invention utilizes mobile operator to provide realize onboard navigation system to working as
The pre-setting function automatically of ground time zone and time only develop a set of algorithm, without individually designed for country variant and area
Time algorithm, transplantability is strong, and software management difficulty decline, development cost reduces；It is directly equal using most of onboard navigation system
The ready-made NITZ agreement of the blue tooth interface and mobile operator that can be equipped with, without increasing additional hardware cost；Do not have in vehicle
When time zone being caused to change, only automatically generating for time algorithm need to can be completed by a bluetooth connection in switching area；With a
National different regions are likely to be at different time zone, using different daylight-saving time calculation methods, and this programme also can be realized vehicle and exist
Automatic identification and the local time is set when switching different regions.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (7)
1. a kind of method that onboard navigation system sets the local time automatically, which is characterized in that including：
Onboard navigation system is sent by local time zone, time, date information and UTC time；
The onboard navigation system parses the data received, respectively extract local time zone, the time, date information and
UTC time；According to local time zone information, the daylight-saving time calculation formula of this area is searched in algorithms library；In conjunction with local time zone, it is somebody's turn to do
Ground daylight-saving time calculation formula, UTC time, calculate the local time；The locality that calculated local time and parsing are extracted
Time is compared, if coincideing, generates local time algorithm；The onboard navigation system is according to local time zone, time, date
The automatic setting to the local time can be completed in information and UTC time.
2. a kind of method that onboard navigation system sets the local time automatically as described in claim 1, which is characterized in that will work as
Ground time zone, time, date information time are sent to mobile phone；For mobile phone by bluetooth connection to onboard navigation system, mobile phone will be local
Time zone, time, date information are sent to onboard navigation system.
3. a kind of method that onboard navigation system sets the local time automatically as claimed in claim 2, which is characterized in that pass through
GPS provides UTC time information to the onboard navigation system.
4. a kind of method that onboard navigation system sets the local time automatically as claimed in claim 3, which is characterized in that local
After time algorithm generates, the UTC time provided using GPS can set the local time, including：The onboard navigation system obtains
Take UTC time；The onboard navigation system loads the local time algorithm generated by Bluetooth of mobile phone；Pass through local time algorithm
And real-time UTC time, the local time is calculated, the onboard navigation system sets the local time.
5. a kind of method that onboard navigation system sets the local time automatically as claimed in claim 4, which is characterized in that described
Onboard navigation system is in subsequent use process, if can be updated to local time algorithm again through bluetooth connection mobile phone.
6. a kind of method that onboard navigation system sets the local time automatically as claimed in claim 5, which is characterized in that mobile
Carrier server sends mobile phone for local time zone, time, date information by NITZ agreement.
7. a kind of method that onboard navigation system sets the local time automatically as claimed in claim 6, which is characterized in that mobile phone
By Bluetooth agreement, the data forwarding received is given to the onboard navigation system.
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| CN201810838744.9A CN108897207A (en) | 2018-07-27 | 2018-07-27 | A kind of method that onboard navigation system sets the local time automatically |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114356024A (en) * | 2021-12-08 | 2022-04-15 | 杭州华橙软件技术有限公司 | Method for automatically setting daylight saving time in intelligent equipment, cloud platform and storage medium |
| CN114488226A (en) * | 2022-01-15 | 2022-05-13 | 重庆长安汽车股份有限公司 | Method and system for automatically switching time zone and time of vehicle-mounted unit based on GNSS positioning |
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