CN105472775B - A kind of Bluetooth communication connection method of head-up display - Google Patents
A kind of Bluetooth communication connection method of head-up display Download PDFInfo
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- CN105472775B CN105472775B CN201510780311.9A CN201510780311A CN105472775B CN 105472775 B CN105472775 B CN 105472775B CN 201510780311 A CN201510780311 A CN 201510780311A CN 105472775 B CN105472775 B CN 105472775B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0161—Head-up displays characterised by mechanical features characterised by the relative positioning of the constitutive elements
- G02B2027/0163—Electric or electronic control thereof
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
The invention discloses a kind of Bluetooth communication connection methods of head-up display, comprising: after being powered to the head-up display, judges whether to receive Bluetooth communication connection request transmitted by external equipment；When Bluetooth communication connection request transmitted by head-up display receives external equipment, control head-up display work carries out point-to-point Bluetooth communication with external equipment under passive mode；When Bluetooth communication connection request transmitted by head-up display does not receive external equipment, head-up display work is controlled under active mode, it periodically searches for external equipment and carries out Bluetooth pairing, and point-to-point Bluetooth communication is carried out with an external equipment after Bluetooth pairing success, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments.Automatic switchover of the HUD bluetooth equipment between passive mode and active mode may be implemented in the Bluetooth communication connection method of head-up display provided by the invention.
Description
Technical field
The present invention relates to the Bluetooth communication connection methods of technical field of electronic communication more particularly to a kind of head-up display.
Background technique
The predecessor of head-up display (Head Up Display, abbreviation HUD) is used in the optical laying on fighter plane
Device, this sighting device utilize optical reflection principle, and cricoid aiming circle light net is incident upon on the cockpit front end display screen of device.
It, will not when pilot's run-home since the image of projection for the focal length of naked eyes is scheduled on above the distance of infinity
The running for hampering eyes maintains to clearly indicate.It needs to bow to check instrument since HUD display can reduce driver
Frequency avoids attention from interrupting, and convenience and can be improved driving safety, and civil aircraft and motor vehicles also follow up one after another
Installation.
Wherein, for motor vehicles, when motor vehicles are when running at high speed, especially night high speed traveling when, driver
It may bow and watch the display information such as instrumented data, navigation circuit, meet emergency when traveling front and be possible to because coming
It is too late to adopt an effective measure and cause traffic accident.And the application of HUD can by extraneous scene with shown for information about preceding
The driver of windshield looks squarely in range, watches the instruments to avoid bowing, and shortens eyeball to the vision dead zone time in front, because
And contingency occurrence probability can be effectively reduced, improve safety.
Either in military aircraft, civil aircraft or motor vehicles using upper, acquisition of information when driving is very
It is useful and necessary.Driver needs to know with clearing the destination of stroke, weather conditions, air line situation/road surface shape
Condition and other data.In the prior art, driver needs to rely on cellular phone, PDA (Personal Digital
Assistant, personal digital assistant), beeper, GPS (Global Positioning System, global positioning system) defend
The fixed or hand-held external equipment such as star receiver, radio device and portable computer, reads useful from these equipment
Data.These useful datas are projected on HUD and are shown, driver can quickly and safely read and set from any periphery
Standby information or data, including cellular calls, Email, orienting a map, destination data etc., while will when driving
Two hands are held on the steering wheel of vehicle.Therefore, how these useful datas to be transmitted on HUD becomes key.
Bluetooth (Bluetooth) is one of the wireless short range communication technology quite to attract attention in recent years.Bluetooth provides can
The technical standard that short-range data interaction is carried out in wireless transmission environments, is developed rapidly, current bluetooth in recent years
Technology have many advantages, such as quickly, it is short delay, super low-power consumption, adaptive frequency hopping, long-time suspend mode, safe and anti-interference.
The working method of bluetooth mainly includes active mode and passive mode.Wherein, active mode refers to bluetooth equipment master
Trend external equipment issues Bluetooth communication request, and passive mode refers to that bluetooth equipment passively receives the bluetooth that external equipment is issued
Communication request, wherein the equipment for actively proposing communicating requirement is main equipment, and the equipment passively communicated is from equipment.From reason
For upper, bluetooth equipment can switch between active mode and passive mode two ways, but existing bluetooth equipment
When needing to switch to active mode from passive mode, need user it is artificial output and input operation, in the input of not user
Under conditions of output operation, bluetooth equipment substantially works under passive mode as just from equipment, thus weakens
The function of bluetooth equipment.Moreover, for applying the bluetooth equipment on HUD, since driver needs to be absorbed in various driving
Operation necessarily increases Operating Complexity if artificially operating the bluetooth equipment on HUD by driver, disperses driver
Attention, obtain the data information of external equipment by reducing drive safety.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of Bluetooth communication connection methods of head-up display, are not necessarily to
Human computer interaction automatically switches the bluetooth operating mode of head-up display, improves the flexibility of HUD Bluetooth communication.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of Bluetooth communication connection method of head-up display,
Include:
After being powered the head-up display, judge whether to receive the company of Bluetooth communication transmitted by external equipment
Connect request；
It is when Bluetooth communication connection request transmitted by the head-up display receives external equipment, the head-up is aobvious
Show that device is used as from equipment, using the external equipment for issuing Bluetooth communication connection request as main equipment, controls the head-up display
Work carries out point-to-point Bluetooth communication with the external equipment under passive mode；
When Bluetooth communication connection request transmitted by the head-up display does not receive external equipment, control described flat
Depending on display work under active mode, periodically searches for external equipment and carry out Bluetooth pairing, and after Bluetooth pairing success
Point-to-point Bluetooth communication is carried out with an external equipment, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments.
Further, the Bluetooth communication connection method of the head-up display, further includes:
It is put down when the external equipment that the head-up display works under passive mode, and currently connects actively is disconnected with described
Depending on display Bluetooth communication connection when, the bluetooth operating mode of the head-up display is switched into masters from passive mode
Formula periodically searches for external equipment and carries out Bluetooth pairing, and carries out a little pair after Bluetooth pairing success with an external equipment
The Bluetooth communication of point, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments.
Further, the Bluetooth communication connection method of the head-up display, further includes:
When the head-up display work under active mode, and receive Bluetooth communication transmitted by external equipment connection
When request, controls the head-up display disconnection and connect with current all Bluetooth communications；And using the head-up display as
The head-up display work is controlled in quilt from equipment using the external equipment for issuing Bluetooth communication connection request as main equipment
Point-to-point Bluetooth communication is carried out with external equipment under flowing mode, by the bluetooth operating mode of the head-up display from masters
Formula switches to passive mode.
Further, the Bluetooth communication connection method of the head-up display, further includes:
When the head-up display work in active mode, according to the Bluetooth communication of preservation connect historical record, it is right
The one or more external equipments matched issue Bluetooth communication connection request；
Bluetooth communication is carried out with corresponding external equipment if the head-up display obtains connection response；If connection failure
Then restart the matched external equipment of search.
Further, the Bluetooth communication connection method of the head-up display, further includes:
Detection currently carries out the quantity of the successful external equipment of Bluetooth pairing with the head-up display；If currently with it is described
The quantity that head-up display carries out the successful external equipment of Bluetooth pairing is less than maximum pairing number N, then in the head-up display
Paired device record is added in device；If currently carrying out the quantity etc. of the successful external equipment of Bluetooth pairing with the head-up display
Number N is matched in maximum, then deletes and temporally records earliest paired device.
Preferably, the head-up display screen includes bluetooth equipment and microprocessor；By the bluetooth equipment and one or
Multiple external equipments carry out Bluetooth communication connection, by the microprocessor control bluetooth equipment in active mode and passively
It is switched between mode.
The Bluetooth communication connection method of head-up display (HUD) provided in an embodiment of the present invention, it is first after being powered on to HUD
First judge whether to receive Bluetooth communication connection request transmitted by external equipment, is worked first if receiving request in passive side
Formula and carry out point-to-point Bluetooth communication connection with external equipment, work if not receiving request and set in aggressive mode with outside
It is standby to carry out point-to-point or one point for multiple address Bluetooth communication connection, thus the bluetooth equipment of head-up display provided by the invention is practical
Ground can both work in passive mode or work in active mode, and priority task is in point-to-point passive mode.This
Outside, technical solution provided by the invention can further realize bluetooth operating mode and automatically switch to masters from passive mode
Formula without the manual operation of user, therefore reduces operation complexity alternatively, automatically switching to passive mode from active mode,
The communicative flexibility of bluetooth equipment in HUD is improved, the data information of common external equipment is intelligently obtained and is exported aobvious to HUD
Show screen display, provides communication support for the multifunctionality of HUD.
Detailed description of the invention
Fig. 1 is the knot of one embodiment of head-up display provided by the invention and external equipment progress Bluetooth communication connection
Structure schematic diagram.
Fig. 2 is the step process of one embodiment of the Bluetooth communication connection method of head-up display provided by the invention
Figure.
Fig. 3 is the step process of another embodiment of the Bluetooth communication connection method of head-up display provided by the invention
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 the implementation that head-up display provided by the invention and external equipment carry out Bluetooth communication connection referring to Fig. 1
The structural schematic diagram of example.
Wherein, user drive an airplane or vehicle processes in, it may be necessary to will be with the external equipment 102 of Bluetooth function
It is shown on data information transfer to the head-up display (HUD) 101 with Bluetooth function, it is also possible to need to obtain HUD101
Aircraft or vehicle drive information be transferred to external equipment 102, pass through the further connection equipment with internet of external equipment 102
It is communicated.In the present embodiment, the external equipment 102 includes but is not limited to cellular phone (mobile phone terminal), plate electricity
Brain, PDA, beeper, GPS satellite receiver, radio device and portable computer etc. be fixed or handheld device, in order to from
Useful data is read in external equipment.These useful datas are projected on HUD101 and are shown, user can be quickly and safely
The information or data from any peripheral equipment is read, such as cellular calls, Email, orienting a map, destination data
Etc. information.
Referring to fig. 2, be head-up display provided by the invention one embodiment of Bluetooth communication connection method the step of
Flow chart.
In the present embodiment, the Bluetooth communication connection method of the head-up display, mainly comprises the steps that
Step S201: after being powered the head-up display, judge whether to receive transmitted by external equipment
Bluetooth communication connection request.When Bluetooth communication connection request transmitted by the head-up display receives external equipment, hold
Row step S202；When Bluetooth communication connection request transmitted by the head-up display does not receive external equipment, step is executed
Rapid S203.
Step S202: using the head-up display as from equipment, the external equipment of Bluetooth communication connection request will be issued
As main equipment, it is logical with the point-to-point bluetooth of external equipment progress under passive mode to control the head-up display work
Letter；
Step S203: the head-up display work is controlled under active mode, periodically searches for external equipment progress
Bluetooth pairing, and point-to-point Bluetooth communication is carried out with an external equipment after Bluetooth pairing success, alternatively, with multiple outsides
The Bluetooth communication of equipment progress one point for multiple address.
In the present embodiment, can at most be communicated simultaneously from equipment with 7 as the HUD of main equipment, and can with it is more
It keeps synchronous from equipment up to 256 but does not communicate.It can be carried out by main equipment from equipment and from the Bluetooth communication between equipment
Forwarding.The Bluetooth system being made of each bluetooth equipment can provide point-to-point interconnection, and (only there are two blue in Bluetooth system
Tooth equipment) or one point for multiple address connection type (in Bluetooth system there are a main equipment and multiple from equipment).Wherein, more on one point
In the connection type of location, channel distribution is in multiple bluetooth equipments；Also, distribution in the same channel two or more
Bluetooth equipment forms a microgrid (Pico net), and realization carries out short range data transmission between a plurality of bluetooth apparatuses.
When it is implemented, the head-up display screen includes bluetooth equipment and microprocessor.Pass through the bluetooth equipment and one
A or multiple external equipments carry out Bluetooth communication connections, by the microprocessor control the bluetooth equipment active mode with
It is switched between passive mode.
The Bluetooth communication connection method of head-up display (HUD) provided in an embodiment of the present invention, it is first after being powered on to HUD
First judge whether to receive Bluetooth communication connection request transmitted by external equipment, is worked first if receiving request in passive side
Formula and carry out point-to-point Bluetooth communication connection with external equipment, work if not receiving request and set in aggressive mode with outside
It is standby to carry out point-to-point or one point for multiple address Bluetooth communication connection, thus the bluetooth equipment of head-up display provided by the invention is practical
Ground can both work in passive mode or work in active mode, and priority task is in point-to-point passive mode.
When it is implemented, the bluetooth equipment in the HUD has had the initiative in the working condition of mode or passive mode, this
The Working mould of its internal bluetooth equipment can be automatically switched according to the variation of HUD application environment by inventing the technical solution provided
Formula, it may be assumed that passive mode is automatically switched to by active mode, alternatively, automatically switching to active mode by passive mode.
Referring to Fig. 3, the step of being another embodiment of the Bluetooth communication connection method of head-up display provided by the invention
Flow chart.
In the present embodiment, step S201~step S203 in step S301~step S303 working principle and Fig. 2
Working principle it is identical, details are not described herein.Further, the Bluetooth communication connection side of head-up display provided in this embodiment
Method further include: when head-up display work is under passive mode, and the external equipment that currently connects actively disconnect with it is described
When the Bluetooth communication connection of head-up display, step S304 is executed.
Step S304: the bluetooth operating mode of the head-up display is switched into active mode, period from passive mode
Property search for external equipment and carry out Bluetooth pairing, and carry out point-to-point bluetooth with external equipment after Bluetooth pairing success
Communication, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments.When it is implemented, when the bluetooth equipment work in HUD
When making under active mode, regardless of whether current Bluetooth equipment has carried out Bluetooth communication connection with external equipment, start the period
Property attempt starting bluetooth equipment search connection external equipment.If bluetooth equipment in HUD is not used as by external equipment from setting
Standby connection, HUD attempt to connect the equipment (the external bluetooth equipment matched) being most recently connected as main equipment.Attempting bluetooth
After connection failure, the bluetooth equipment controlled in HUD is re-searched for external equipment by the microprocessor in HUD.
When it is implemented, when the Bluetooth device operation in HUD is in active mode, the bluetooth of HUD provided in this embodiment
Communication connecting method further include: detection currently carries out the number of the successful external equipment of Bluetooth pairing with the head-up display HUD
Amount.If the quantity for currently carrying out the successful external equipment of Bluetooth pairing with the head-up display HUD is less than maximum pairing number
N then adds paired device record in the head-up display HUD；Wherein, N > 0；If currently with the head-up display HUD
The quantity for carrying out the successful external equipment of Bluetooth pairing is equal to maximum pairing number N, then deletes and temporally record earliest pairing
Equipment.
The number for the external equipment that HUD under active mode is matched is less than (the maximum pairing of preset total pairing number
Number N), it at least reserves a surplus feed system and the automatic search and pairing of external bluetooth equipment is connected；Also, it is matching
Then starting Bluetooth communication connection automatically after new external bluetooth equipment success.That is, when the head-up display works in masters
When formula, according to the historical record that the Bluetooth communication of preservation connects, it is logical that bluetooth is issued to the one or more external equipments matched
Believe connection request；Bluetooth communication is carried out with corresponding external equipment if the head-up display obtains connection response；If connection
Failure then restarts the matched external equipment of search.The present embodiment completes HUD bluetooth equipment by passive mode to master as a result,
The automatic switchover of flowing mode.
It should be noted that bluetooth equipment built-in in HUD will switch to active mode from passive mode, occur only at
In the case that external bluetooth equipment as main equipment is actively disconnected with the connection of the bluetooth equipment built in HUD.When built-in in HUD
Microprocessor (MCU) judge in HUD that built-in bluetooth equipment has been disconnected and automatically switched under active mode when working,
MCU control bluetooth equipment, which re-starts, periodically attempts the external bluetooth equipment of search connection.
In addition, HUD bluetooth equipment provided in an embodiment of the present invention can also realize by active mode to passive mode from
Dynamic switching.As shown in figure 3, the Bluetooth communication connection method of the head-up display, further includes: when the head-up display work
When making under active mode, and receiving Bluetooth communication connection request transmitted by external equipment, step S305 is executed.
Step S305: it controls the head-up display disconnection and is connect with current all Bluetooth communications；And by the head-up
Display is used as from equipment, using the external equipment for issuing Bluetooth communication connection request as main equipment, controls the head-up display
Device work carries out point-to-point Bluetooth communication with external equipment under passive mode, by the bluetooth Working mould of the head-up display
Formula switches to passive mode from active mode.
When it is implemented, when as long as HUD receives the Bluetooth connection request of external equipment, built in bluetooth equipment will be to
MCU built in HUD sends message, informs that (connection is in the condition of having matched there are the pairing of external bluetooth equipment needs or connection
Under can carry out) this bluetooth equipment.MCU built in HUD is instructed after receiving message to the bluetooth equipment transmission built in HUD, control
Bluetooth equipment processed disconnects current all connections, carries out Bluetooth communication connection into passive mode and external equipment.
Method provided in an embodiment of the present invention on the basis of Fig. 2 embodiment, can further realize the bluetooth work of HUD
Mode automatically switches to active mode from passive mode, alternatively, automatically passive mode is switched to from active mode, without using
The manual operation at family, therefore operation complexity is reduced, the communicative flexibility of bluetooth equipment in HUD is improved, is intelligently obtained normal
Screen display is shown to HUD with the data information and output of external equipment, provides communication support for the multifunctionality of HUD.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (4)
1. a kind of Bluetooth communication connection method of head-up display characterized by comprising
After being powered to the head-up display, judge whether that receiving the connection of Bluetooth communication transmitted by external equipment asks
It asks；
When Bluetooth communication connection request transmitted by the head-up display receives external equipment, by the head-up display
The head-up display work is controlled as from equipment using the external equipment for issuing Bluetooth communication connection request as main equipment
Point-to-point Bluetooth communication is carried out with the external equipment under passive mode；When the head-up display works in passive mode
Under, and the external equipment currently connected actively disconnects when connecting with the Bluetooth communication of the head-up display, the head-up is aobvious
Show that the bluetooth operating mode of device switches to active mode from passive mode, periodically search for external equipment and carry out Bluetooth pairing,
And point-to-point Bluetooth communication is carried out with an external equipment after Bluetooth pairing success, alternatively, being carried out with multiple external equipments
The Bluetooth communication of one point for multiple address；
When Bluetooth communication connection request transmitted by the head-up display does not receive external equipment, it is aobvious to control the head-up
Show device work under active mode, periodically searches for external equipment and carry out Bluetooth pairing, and with one after Bluetooth pairing success
A external equipment carries out point-to-point Bluetooth communication, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments；Work as institute
When stating head-up display work under active mode, and receiving Bluetooth communication connection request transmitted by external equipment, control
The head-up display is disconnected to be connect with current all Bluetooth communications；And using the head-up display as from equipment, will send out
It is under passive mode and outer to control the head-up display work as main equipment for the external equipment of Bluetooth communication connection request out
Portion's equipment carries out point-to-point Bluetooth communication, and the bluetooth operating mode of the head-up display is switched to passively from active mode
Mode.
2. the Bluetooth communication connection method of head-up display as described in claim 1, which is characterized in that the method is also wrapped
It includes:
When head-up display work is in active mode, according to the historical record that the Bluetooth communication of preservation connects, to having matched
Pair one or more external equipments issue Bluetooth communication connection request；
Bluetooth communication is carried out with corresponding external equipment if the head-up display obtains connection response；It is weighed if connection failure
Matched external equipment is searched in new starting.
3. the Bluetooth communication connection method of head-up display as claimed in claim 2, which is characterized in that the method is also wrapped
It includes:
Detection currently carries out the quantity of the successful external equipment of Bluetooth pairing with the head-up display；
If the quantity for currently carrying out the successful external equipment of Bluetooth pairing with the head-up display is less than maximum pairing number N,
Paired device record is then added in the head-up display；
If the quantity for currently carrying out the successful external equipment of Bluetooth pairing with the head-up display is equal to maximum pairing number N,
It then deletes and temporally records earliest paired device.
4. the Bluetooth communication connection method of head-up display as claimed in claim 3, which is characterized in that the head-up display
Including bluetooth equipment and microprocessor；
Bluetooth communication connection is carried out by the bluetooth equipment and one or more external equipments, is controlled by the microprocessor
The bluetooth equipment switches between active mode and passive mode.
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| CN201510780311.9A CN105472775B (en) | 2015-11-13 | 2015-11-13 | A kind of Bluetooth communication connection method of head-up display |
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| CN201510780311.9A CN105472775B (en) | 2015-11-13 | 2015-11-13 | A kind of Bluetooth communication connection method of head-up display |
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| CN105472775B true CN105472775B (en) | 2019-02-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111083746A (en) * | 2018-10-18 | 2020-04-28 | 北京轩辕联科技有限公司 | Mode-switchable Bluetooth device, Bluetooth connection system and Bluetooth connection method |
| CN110062366A (en) * | 2019-04-18 | 2019-07-26 | 深圳创维数字技术有限公司 | Bluetooth pairing abnormality eliminating method, equipment, storage medium and device |
| CN112351404B (en) * | 2019-08-08 | 2022-08-16 | 上海擎感智能科技有限公司 | Bluetooth connection method and device and vehicle machine |
| CN111050323B (en) * | 2019-11-28 | 2023-02-21 | 中国联合网络通信集团有限公司 | Terminal switching method, device and system |
| CN111756413B (en) * | 2020-07-27 | 2022-02-01 | 海信视像科技股份有限公司 | Method for adjusting Bluetooth mode on display device and display device |
| CN112218275A (en) * | 2020-10-10 | 2021-01-12 | 新中音私人有限公司 | MIDI apparatus and packet concatenation method |
| CN114120474B (en) * | 2021-11-29 | 2024-06-07 | 广东九联科技股份有限公司 | Automatic alarm system for illegal vehicles |
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| CN105472775A (en) | 2016-04-06 |
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