CN113566841A - Intelligent navigation method and system based on instrument - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3664—Details of the user input interface, e.g. buttons, knobs or sliders, including those provided on a touch screen; remote controllers; input using gestures
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Abstract
The invention relates to the field of navigation, in particular to an intelligent navigation method and system based on an instrument. The intelligent navigation method comprises the following steps: acquiring interface attributes of an instrument display screen; acquiring navigation information of a mobile terminal; converting the navigation information into a virtual screen matched with the interface attribute; and displaying the virtual screen on the display screen. Compared with the prior art, the method has the advantages that high-precision navigation is carried out through the inherent convenient condition of the mobile terminal, and navigation information is shared into the display screen, so that instrument display navigation can be realized, resource sharing can also be realized, the instrument cost is reduced, and the market competitiveness is improved; while navigation sharing is performed, effective compatibility needs to be performed for display attributes of mobile terminals of different users.
Description
Technical Field
The invention relates to the field of navigation, in particular to an intelligent navigation method and system based on an instrument.
Background
In the current society of motorcycles, roads are more and more, road conditions and traffic rules are more and more, and thus the motorcycles are more and more required to navigate. Of course, the need for navigation is becoming more and more acute in different vehicles, such as bicycles, balance cars, electric bicycles, etc.
However, the navigation of the motorcycle is relatively lacking at present, especially for a full-interface map of vehicle multimedia, the navigation used by the traditional motorcycle generally has the following ways:
navigating by means of watching a mobile phone; however, on one hand, the mobile phone cannot be well fixed on the motorcycle frame, and on the other hand, the mobile phone screen is relatively small and is not easy to view, so that it is unsafe to view the mobile phone map while driving.
Or, the screen projection display can be carried out in a wireless transmission mode, and some simple navigation information of the mobile phone navigation is transmitted to the motorcycle instrument for display.
Or, the third-party mobile phone interconnection app is used for completing mobile phone navigation screen projection to the instrument to realize the navigation function, although the defects caused by the two modes can be overcome, the third-party mobile phone interconnection app needs to install the application of the third-party mobile phone interconnection app at the instrument end to realize continuous navigation when the screen is closed, so that the development cost is increased, the instrument end needs to depend on the application provided by the third-party mobile phone interconnection app, and the applications are realized aiming at the automobile multimedia, so that the applications cannot be operated on a plurality of platforms, and the limitation is realized.
Or screen projection software is adopted, all interfaces of the screen are projected to the instrument in a screen recording mode, so that the navigation interface can be projected to the instrument when the mobile phone conducts navigation, as long as the instrument end of the mobile phone is turned off and simultaneously displays a black screen, all the mobile phones need to be turned on, therefore, on one hand, the power consumption of the mobile phone can be improved, on the other hand, the screen style of the instrument end and the screen style of the mobile phone end need to be the same, the interface requirements of the instrument cannot be well adapted, and the mobile phone must be on the navigation interface.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an intelligent navigation method and system based on an instrument, aiming at the above defects in the prior art, and solve the problem of poor user experience in the prior navigation.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent navigation method based on the instrument is provided, the instrument is in communication connection with the mobile terminal, and the method comprises the following steps:
acquiring interface attributes of an instrument display screen;
acquiring navigation information of a mobile terminal;
converting the navigation information into a virtual screen matched with the interface attribute;
and displaying the virtual screen on the display screen.
Wherein, the preferred scheme is: the step of converting the navigation information into a virtual screen matched with the interface attribute comprises the following steps: the mobile terminal converts the navigation information into a virtual screen matched with the interface attribute, and sends the virtual screen to a display screen, and the virtual screen is displayed on the display screen; or the mobile terminal sends the navigation information to the display screen, and the display screen converts the navigation information into a virtual screen matched with the interface attribute and displays the virtual screen.
Wherein, the preferred scheme is: the mobile terminal is provided with a navigation program, and the step of acquiring the navigation information of the mobile terminal comprises the following steps: the mobile terminal carries out navigation operation through a navigation program; various navigation information generated and required in the navigation operation is collected.
Wherein, the preferred scheme is: the mobile terminal is provided with an open type SDK module, and the step of collecting various navigation information generated and needed in the navigation operation comprises the following steps: the mobile terminal collects data generated and needed in navigation operation through an open type SDK module; encoding the data to form a data packet containing navigation information or a virtual screen; the display screen decodes the data packet to form a virtual screen.
Wherein, the preferred scheme is: the intelligent navigation method further comprises the following steps: the mobile terminal creates a virtual screen through a system API; the navigation content of the virtual screen synchronizes the navigation content of the navigation program through the navigation information; encoding the virtual screen to form a data packet; the display screen decodes the data packet to form a virtual screen.
Wherein, the preferred scheme is: the intelligent navigation method further comprises the following steps: the mobile terminal encodes the virtual screen into H264 data through a system API; carrying out data encapsulation; and transmitting the data to the instrument through a TCP/UDP protocol, decoding the instrument and displaying H264 data in a display screen.
Wherein, the preferred scheme is: the meter comprises a Bluetooth module and a WIIF module, and the intelligent navigation method further comprises the following steps: the instrument is communicated with the mobile terminal through the Bluetooth module, and the WIFI information of the mobile terminal is mapped into the instrument; the meter is connected to a hot spot of the mobile terminal through the WIIF module.
Wherein, the preferred scheme is: the mobile terminal is also connected with a helmet in a communication way, and the intelligent navigation method further comprises the following steps: acquiring navigation sound matched with navigation information in the mobile terminal; and sending the navigation sound to the helmet, and playing the navigation sound on the helmet.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent navigation system comprises an instrument and a mobile terminal, wherein the instrument comprises a display screen, and the instrument and the mobile terminal are in communication interaction through an intelligent navigation method so as to display a virtual screen on the display screen.
Wherein, the preferred scheme is: the intelligent navigation system further comprises a helmet capable of playing sound, the mobile terminal sends the navigation sound matched with the navigation information to the helmet, and the helmet plays the navigation sound.
Compared with the prior art, the method has the advantages that high-precision navigation is carried out through the inherent convenient condition of the mobile terminal, and navigation information is shared into the display screen, so that instrument display navigation can be realized, resource sharing can also be realized, the instrument cost is reduced, and the market competitiveness is improved; while navigation sharing is performed, effective compatibility needs to be performed for display attributes of mobile terminals of different users.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic flow chart of the intelligent navigation method of the present invention;
FIG. 2 is a schematic diagram of the communication structure between the meter and the mobile terminal according to the present invention;
FIG. 3 is a flow chart illustrating the steps of obtaining navigation information of a mobile terminal based on a navigation program according to the present invention;
FIG. 4 is a flow chart illustrating the steps of collecting various navigation information generated and required in the navigation operation based on the open SDK module according to the present invention;
FIG. 5 is a schematic flow chart of the system API for creating a virtual screen;
FIG. 6 is a flow chart of the H264 data-based transmission method according to the present invention;
FIG. 7 is a flow chart illustrating a communication method between the meter and the mobile terminal according to the present invention;
FIG. 8 is a flow chart illustrating the manner in which the helmet, the meter and the mobile terminal communicate according to the present invention;
fig. 9 is a schematic flow chart of the intelligent navigation system of the helmet, the meter and the mobile terminal according to the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention provides a preferred embodiment of a smart navigation method based on a meter 200.
An intelligent navigation method based on a meter 200, wherein the meter 200 is in communication connection with a mobile terminal 100, comprises the following steps:
step S10, acquiring the interface attribute of the display screen 210;
step S20, acquiring navigation information of the mobile terminal 100;
step S30, converting the navigation information into a virtual screen matched with the interface attribute;
step S40, and displaying a virtual screen on the display screen.
In this embodiment, the meter 200 should be provided with a display screen, which can be dedicated to navigation display or be reused with other driving information, especially for use in a motorcycle, for example, the motor temperature data, the vehicle speed, the acceleration, the tire pressure, the driving mileage, etc. can be obtained through the display screen, and the navigation display is performed through the display screen, and the driver performs driving operation according to the navigation information or the navigation path. And, the simple instrument 200 sets up the high-accuracy navigation system, with high costs and if adopt the mobile network still need pay the flowrate expense in addition, the structure is complicated and unstable, need to embed various module, user's interest and attractiveness are extremely bad, the invention provides the instrument 200 based on mobile terminal 100 and shows the scheme of the intelligent navigation, namely utilize the convenient condition of the innate of the mobile terminal 100 to carry on the high-accuracy navigation, share the navigation information to the display screen 210, can realize the instrument 200 and show the navigation, can also realize the resource sharing, reduce the instrument 200 cost, improve the market competitiveness.
Meanwhile, while navigation sharing is performed, effective compatibility needs to be performed on the display attributes of the mobile terminals 100 of different users, for example, a mobile phone, the meter 200 may be used with different mobile terminals 100, that is, instead of screen projection of a pure display screen, the interface attribute of the display screen 210 is first obtained through step S10, the preferred interface attribute is an interface display size, the navigation information of the mobile terminal 100 is obtained through step S20, the navigation information is converted into a virtual screen matched with the interface attribute according to a preset rule, and the virtual screen is displayed on the display screen, so that the display screen 210 can be used with different mobile terminals 100 in a compatible manner, and all correct screens can be displayed on the display screen 210.
The establishment of the virtual screen comprises the following steps: presetting a virtual screen template, and setting the interface size of the virtual screen template and the change of related characters, symbols and images by combining interface attributes; and then, the navigation information is imported into the virtual screen template, the virtual screen template selects the required navigation information, the templated virtual screen template is changed into a real-time dynamic virtual screen, and the virtual screen is projected on the display screen 210 for effective display.
In this embodiment, the processing step of converting the navigation information into the virtual screen matched with the interface attribute includes two schemes.
In the first scheme, the mobile terminal 100 converts the navigation information into a virtual screen matched with the interface attribute, and sends the virtual screen to the display screen, and the virtual screen is displayed on the display screen.
And in the second scheme, the mobile terminal 100 sends the navigation information to the display screen, and the display screen converts the navigation information into a virtual screen matched with the interface attribute and displays the virtual screen.
The two schemes are roughly processed in the same way, and the difference lies in the establishment position and the establishment time of the display screen. In the first scheme, all processing is implemented on the mobile terminal 100 to form a virtual screen which can be displayed on the display screen, the advantages of the hardware conditions of the mobile terminal 100 are utilized to greatly reduce the hardware requirements required by the instrument 200, the cost of the instrument 200 is reduced again, and the instrument 200 is suitable for various occasions, for example, the instrument 200 can be installed on a conventional two-wheel electric vehicle, and of course, vehicles which can walk such as motorcycles, bicycles, cars and the like can also be installed. And the second scheme does not need too many operations of parameters of the mobile terminal 100, and only needs to acquire and send data to the instrument 200, and the instrument 200 can form a corresponding virtual screen according to preset parameters and rules and effectively display the virtual screen.
In this embodiment, an intelligent navigation system based on a meter 200 is provided, the intelligent navigation system includes the meter 200 and a mobile terminal 100, the meter 200 includes a display screen, and the meter 200 and the mobile terminal 100 perform communication interaction through an intelligent navigation method, so as to display a virtual screen on the display screen.
In this embodiment, after the mobile terminal 100 turns off the screen, the navigation interface data may also be transmitted to the meter 200 for effective display. The navigation interface of the mobile terminal 100 and the navigation interface projected to the display screen 210 are independent in style, so that navigation can be performed when the mobile terminal 100 is turned off, the power of the mobile terminal 100 is saved, a navigation style required by the meter 200 can be established, navigation can be performed on the meter 200 only by running navigation in the background, and the delay of the two is not more than 1s, generally about 300 ms.
As shown in fig. 3, the present invention provides a preferred embodiment of the step of acquiring the navigation information of the mobile terminal 100 based on the navigation program.
The mobile terminal 100 is installed with a navigation program, and the step of acquiring the navigation information of the mobile terminal 100 includes:
step S21, the mobile terminal 100 performs navigation operation through the navigation program;
step S22, collecting various navigation information generated and needed in the navigation operation.
Specifically, the mobile terminal 100 navigates through a built-in navigation program, and acquires relevant navigation information during navigation, including GPS positioning, license plate restriction, route planning and navigation, optimal route selection, route error correction, distance, required time, arrival time, congestion degree, direction of south, west and north, speed, overspeed condition, road name, road image, and the like.
The navigation operation can be performed by using a navigation program embedded by the special APP, or the navigation information of the navigation program is acquired by using the special APP, or the navigation information is acquired by using an acquisition script in the navigation program.
As shown in FIG. 4, the present invention provides a preferred embodiment of the steps for collecting various navigation information generated and required in the navigation operation based on the open SDK module.
The mobile terminal 100 is installed with an open SDK module, and the step of collecting various navigation information generated and required in the navigation operation includes:
step S221, the mobile terminal 100 collects data generated and required in the navigation operation through the open SDK module;
step S222, encoding the data to form a data packet containing navigation information or a virtual screen;
and step S223, the display screen decodes the data packet to form a virtual screen.
The open SDK module is also called a software development kit, and is generally a set of development tools used by some software engineers to establish application software for a specific software package, a specific software framework, a specific hardware platform, a specific operating system, and the like. It may simply be a file that provides an application program interface API for a certain programming language, but may also include complex hardware that can communicate with a certain embedded system. Typical tools include utility tools for debugging and other purposes. SDKs also often include example code, supporting technical notes, or other supporting documentation to clarify suspicions for basic reference.
Preferably, the open type SDK module is a Baidu open type SDK module or a Goods open type SDK module, and performs data acquisition according to a corresponding navigation program to acquire data generated and required in the navigation operation. The method has the advantages that due to the integration of the open SDK, research and development personnel can customize the functions to be developed, the method is flexible and convenient, and the method does not need to rely on third-party interconnection apps, so that the cost is saved.
In step S222 and step 2223, there are two sets of processing scenarios.
The first technical point is that the mobile terminal 100 creates a virtual screen, that is, a template of the virtual screen is set in the mobile terminal 100, the data in step S221 is loaded into the virtual screen to form a virtual screen capable of displaying real-time navigation information, the virtual screen is encoded to form a data packet containing the virtual screen, and the subsequent display screen directly displays the virtual screen in the data packet after receiving and decoding the data packet.
In the second scheme, relative to the first scheme, the instrument 200 creates a virtual screen, that is, the mobile terminal 100 acquires various data to form navigation information, and encodes the navigation information to form a data packet containing the navigation information, and the instrument 200 acquires and decodes the data packet, and loads the navigation information into the virtual screen to form a displayable virtual screen.
As shown in FIG. 5, the present invention provides a preferred embodiment of the system API to create a virtual screen.
The intelligent navigation method further comprises the following steps:
step S31, the mobile terminal 100 creates a virtual screen through the system API;
step S32, the navigation content of the virtual screen synchronizes the navigation content of the navigation program through the navigation information;
step S33, encoding the virtual screen to form a data packet;
and step S34, the display screen decodes the data packet to form a virtual screen.
Among them, the API (Application Programming Interface) is some predefined interfaces (such as function and HTTP Interface), or refers to the convention for linking different components of the software system. To provide a set of routines that applications and developers can access based on certain software or hardware without accessing source code or understanding the details of the internal workings.
The virtual screen is created through a system API, namely, data corresponding to navigation contents in the navigation program are synchronized to the virtual screen through the system API directly or after being processed through a preset rule program, namely, the corresponding navigation contents are loaded into the space establishing program of the virtual screen to form the real-time virtual screen.
The virtual screen is encoded to form a data packet, the display screen decodes the data packet to form a virtual screen, namely the virtual screen with different navigation contents is transmitted in real time, a long navigation picture is displayed on the display screen through splicing of a plurality of virtual screens, and the navigation picture is data and parameters corresponding to the virtual screen.
In this embodiment, and referring to fig. 6, the steps of the intelligent navigation method further include:
step S41, the mobile terminal 100 encodes the virtual screen into H264 data through the system API;
step S42, data encapsulation is carried out;
and step S43, transmitting the data to the meter 200 through a TCP/UDP protocol, and decoding and displaying H264 data in a display screen by the meter 200.
In particular, the H264 compression technique mainly employs the following methods to compress video data. Such as intra-frame prediction compression, the spatial domain data redundancy problem is solved. Such as inter-frame prediction compression (motion estimation and compensation), the problem of time domain data redundancy is solved. Such as an integer Discrete Cosine Transform (DCT), the spatial correlation is transformed into frequency-domain independent data and then quantized. Such as CABAC compression.
Data transmission is carried out in a mode of encoding into H264 data, effective transmission is carried out between the mobile terminal 100 and the meter 200, and transmission efficiency and data integrity are improved. Data Encapsulation (Data Encapsulation), which in general terms is to map service Data into the payload of a certain Encapsulation protocol, then fill the packet header of the corresponding protocol to form the Data packet of the Encapsulation protocol, and complete rate adaptation.
Among them, the Transmission Control Protocol (TCP) is a connection-oriented, reliable, byte stream-based transport layer communication Protocol, defined by RFC 793 of IETF, and the Internet Protocol suite supports a connectionless transport Protocol called User Datagram Protocol (UDP). UDP provides a way for applications to send encapsulated IP packets without establishing a connection.
As shown in FIG. 7, the present invention provides a preferred embodiment of the communication method between the meter 200 and the mobile terminal 100.
The meter 200 comprises a bluetooth module and a WIIF module, and the intelligent navigation method further comprises the following steps:
step S51, the meter 200 communicates with the mobile terminal 100 through a Bluetooth module, and WIFI information of the mobile terminal 100 is mapped to the meter 200;
step S52, the meter 200 is connected to the hotspot of the mobile terminal 100 through the WIIF module.
The mapping of the WIFI information is carried out through the Bluetooth module, a basis of intelligent quick connection is provided for communication connection of the instrument 200 and the mobile terminal 100, namely the mobile terminal 100 is connected with the instrument 200 through WIFI information in a WIFI mode, and the subsequent instrument 200 is connected to a hotspot of the mobile terminal 100 through a WIIF module.
Preferably, after bluetooth connection is made through the bluetooth module of the meter 200 and the bluetooth module of the mobile terminal 100, communication is performed through the Gatt/Spp protocol. Where SPP (serial port profile) is a classic bluetooth profile, the SPP defines the bluetooth device requirements needed to set up an analog serial cable connection between two peer devices using RFCOMM, these requirements being expressed in terms of the services provided to the application and the functions and procedures needed to define interoperability between bluetooth devices; the GATT (general attribute profile is a BLE profile which defines the specification of two BLE devices communicating through services and features, the two parties of GATT communication are in a client/server relationship, the peripheral devices are GATT servers, the GATT client is arranged in the center, all communication is started by the client and response is received from the server, the SPP and the GATT play the role of data transmission, when the Bluetooth module is used for communicating with mobile applications, the BLE (GATT) is the only supported bidirectional data transmission profile for the iOS smart phone, and the Android smart phone supports the SPP and the GATT simultaneously, so that the modules support the SPP and the GATT simultaneously, and the Bluetooth module supporting the GATT and the SPP simultaneously is also referred to as Bluetooth and BLE, and the Bluetooth module is also referred to as Bluetooth dual mode.
As shown in fig. 8 and 9, the present invention provides a preferred embodiment of a communication manner of the helmet 300, the meter 200 and the mobile terminal 100.
The mobile terminal 100 is also connected to a helmet 300 in a communication manner, and the intelligent navigation method further includes:
step S61, acquiring navigation sound matched with the navigation information in the mobile terminal 100;
step S62, sending the navigation sound to the helmet 300, and playing the navigation sound on the helmet 300.
Specifically, and referring to fig. 9, the intelligent navigation system further includes a helmet 300 capable of playing sound, the mobile terminal 100 sends the navigation sound matched with the navigation information to the helmet 300, and the helmet 300 plays the navigation sound. By the cooperation of the helmet 300 and the meter 200, the navigation information of the mobile terminal 100 is divided into two parts, the image forms a virtual screen and is displayed on the display screen 210, and the matched sound is played through the helmet 300.
Preferably, the helmet 300 is connected to the mobile terminal 100 through a bluetooth module, and is connected by using a bluetooth A2DP protocol, where A2DP is named as Advanced Audio Distribution Profile bluetooth Audio transmission model protocol, and A2DP is capable of stacking data by using a chip in an earphone, so as to achieve high definition of sound.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, but rather as embodying the invention in a wide variety of equivalent variations and modifications within the scope of the appended claims.
Claims (10)
1. An intelligent navigation method based on an instrument is characterized in that the instrument is in communication connection with a mobile terminal, and the method comprises the following steps:
acquiring interface attributes of an instrument display screen;
acquiring navigation information of a mobile terminal;
converting the navigation information into a virtual screen matched with the interface attribute;
and displaying the virtual screen on the display screen.
2. The intelligent navigation method according to claim 1, wherein the step of converting the navigation information into a virtual screen matching the interface attribute comprises:
the mobile terminal converts the navigation information into a virtual screen matched with the interface attribute, and sends the virtual screen to a display screen, and the virtual screen is displayed on the display screen;
or the mobile terminal sends the navigation information to the display screen, and the display screen converts the navigation information into a virtual screen matched with the interface attribute and displays the virtual screen.
3. The intelligent navigation method according to claim 1 or 2, wherein the mobile terminal is installed with a navigation program, and the step of obtaining the navigation information of the mobile terminal comprises:
the mobile terminal carries out navigation operation through a navigation program;
various navigation information generated and required in the navigation operation is collected.
4. The intelligent navigation method according to claim 3, wherein: the mobile terminal is provided with an open type SDK module, and the step of collecting various navigation information generated and needed in the navigation operation comprises the following steps:
the mobile terminal collects data generated and needed in navigation operation through an open type SDK module;
encoding the data to form a data packet containing navigation information or a virtual screen;
the display screen decodes the data packet to form a virtual screen.
5. The intelligent navigation method according to claim 3, wherein the steps of the intelligent navigation method further comprise:
the mobile terminal creates a virtual screen through a system API;
the navigation content of the virtual screen synchronizes the navigation content of the navigation program through the navigation information;
encoding the virtual screen to form a data packet;
the display screen decodes the data packet to form a virtual screen.
6. The intelligent navigation method according to claim 5, wherein the steps of the intelligent navigation method further comprise:
the mobile terminal encodes the virtual screen into H264 data through a system API;
carrying out data encapsulation;
and transmitting the data to the instrument through a TCP/UDP protocol, decoding the instrument and displaying H264 data in a display screen.
7. The intelligent navigation method according to any one of claims 1 to 6, characterized in that: the meter comprises a Bluetooth module and a WIIF module, and the intelligent navigation method further comprises the following steps:
the instrument is communicated with the mobile terminal through the Bluetooth module, and the WIFI information of the mobile terminal is mapped into the instrument;
the meter is connected to a hot spot of the mobile terminal through the WIIF module.
8. The intelligent navigation method according to claim 1, characterized in that: the mobile terminal is also connected with a helmet in a communication way, and the intelligent navigation method further comprises the following steps:
acquiring navigation sound matched with navigation information in the mobile terminal;
and sending the navigation sound to the helmet, and playing the navigation sound on the helmet.
9. An intelligent navigation system based on instrument, its characterized in that: the intelligent navigation system comprises an instrument and a mobile terminal, wherein the instrument comprises a display screen, and the instrument and the mobile terminal are in communication interaction through the intelligent navigation method according to any one of claims 1 to 8 so as to display a virtual screen on the display screen.
10. The intelligent navigation system of claim 9, wherein: the intelligent navigation system further comprises a helmet capable of playing sound, the mobile terminal sends the navigation sound matched with the navigation information to the helmet, and the helmet plays the navigation sound.
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