Vehicle-mounted navigation positioning auxiliary calibration method, storage medium, electronic equipment and vehicle

Abstract

The invention discloses a vehicle-mounted navigation positioning auxiliary calibration method, a storage medium, electronic equipment and a vehicle, and the method comprises the steps: obtaining and caching the road information planned by the vehicle-mounted navigation when the positioning signal of the vehicle is abnormal and the vehicle-mounted navigation displays that the vehicle runs on a highway section, and obtaining the real-time speed and visual information of the vehicle, the road information comprises abnormal driving position positioning and intersection changing information; recording the positioning abnormal driving position as a starting point, dynamically calculating the driving mileage of the vehicle according to the real-time vehicle speed to obtain the positioning abnormal driving mileage, and identifying guideboard information according to the visual information; and performing auxiliary calibration on the positioning information of the navigation interface according to the positioning abnormal driving mileage, the change intersection information and the guideboard information, and reminding a driver to change a lane at a preset reminding mileage before the vehicle reaches the next change intersection. According to the method, the current navigation driving track can be accurately estimated, and a driver is prevented from missing an intersection.

Description

Technical Field

[0001] The present invention relates to the field of navigation technology, and in particular to a vehicle-mounted navigation positioning auxiliary calibration method, a storage medium, an electronic device, and a vehicle. Background Art

[0002] With the rapid development of smart cars, smart car systems all come with their own manufacturer's own navigation system. Although mobile phone navigation is still the main mode of use and version updates are faster than car system, mobile phone navigation can only track location based on the phone's positioning module, and the vehicle speed is also calculated based on location and time. When the positioning signal is stable, these data are close to the actual vehicle data. However, when the positioning signal is weak or abnormal, the positioning information of the mobile phone navigation is inaccurate. Similarly, when the positioning signal is abnormal or relatively weak, if the car navigation system updates the interface based solely on the positioning data, it will also be inaccurate.

[0003] Related in-vehicle navigation positioning calibration solutions require either additional equipment or cloud-based collaboration. Installing additional equipment increases costs, and cloud-based collaboration requires network requests, which are often not very effective in locations with poor positioning signals. Furthermore, neither additional equipment nor cloud-based collaboration can guarantee high positioning accuracy. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one object of the present invention is to provide an in-vehicle navigation positioning auxiliary calibration method to accurately estimate the current navigation driving trajectory and prevent the driver from missing the intersection.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] A third object of the present invention is to provide an electronic device.

[0007] A fourth object of the present invention is to provide a vehicle.

[0008] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a method for auxiliary calibration of vehicle-mounted navigation positioning, the method comprising: when the vehicle's positioning signal is abnormal and the vehicle-mounted navigation displays that the vehicle is traveling on a highway section, obtaining and caching the road information planned by the vehicle-mounted navigation, and obtaining the real-time vehicle speed and visual information of the vehicle, wherein the road information includes the abnormal positioning driving position and the change intersection information; recording the abnormal positioning driving position as the starting point, and dynamically calculating the mileage of the vehicle based on the real-time vehicle speed to obtain the abnormal positioning driving mileage, and identifying road sign information based on the visual information; assisting in the calibration of the positioning information of the navigation interface based on the abnormal positioning driving mileage, the change intersection information and the road sign information, and reminding the driver to change lanes at a preset reminder mileage before the vehicle reaches the next change intersection.

[0009] According to the in-vehicle navigation positioning auxiliary calibration method of an embodiment of the present invention, the positioning information of the navigation interface is assisted in calibration by combining the road information planned by the in-vehicle navigation, the real-time speed of the vehicle, the mileage of the vehicle after positioning anomalies, the information of the changed intersections that need to be changed, visual recognition, etc., to accurately estimate the current navigation driving trajectory and prevent the driver from missing the intersection.

[0010] In addition, the vehicle navigation positioning auxiliary calibration method proposed in the above embodiment of the present invention may also have the following additional technical features:

[0011] According to an embodiment of the present invention, the method further includes: when the vehicle navigation function is turned on, monitoring the positioning signal, and determining whether the positioning signal is abnormal.

[0012] According to one embodiment of the present invention, the changed intersection information includes a changed intersection name and its corresponding changed mileage. The auxiliary calibration of the positioning information of the navigation interface based on the abnormal positioning mileage, the changed intersection information, and the road sign information includes: when it is determined according to the changed intersection information that there is a changed intersection within a first preset mileage threshold, calculating the remaining mileage based on the abnormal positioning mileage and the changed mileage corresponding to the next intersection ahead of the vehicle; if the remaining mileage is greater than or equal to the first preset mileage, updating the positioning information of the navigation interface at a first preset time interval based on the abnormal positioning mileage; if the remaining mileage is less than the first preset mileage and greater than or equal to a second preset mileage, determining whether the changed intersection name corresponding to the next intersection ahead of the vehicle is identified based on the road sign information, and updating the positioning information of the navigation interface at a second preset time interval based on the abnormal positioning mileage and the identification result, wherein the second preset mileage is less than the first preset mileage, and the second preset time interval is less than the first preset time interval; if the remaining mileage is less than the second preset mileage, updating the positioning information of the navigation interface at a third preset time interval based on the abnormal positioning mileage and the road sign information, wherein the third preset time interval is less than the second preset time interval.

[0013] According to one embodiment of the present invention, the method further includes: if the positioning signal returns to normal and the positioning signal is not interrupted within a preset time, determining whether the remaining mileage is less than the preset reminder mileage; if it is less than or equal to, updating the positioning information of the navigation interface according to the positioning information provided by the positioning information, and after reaching the next change intersection, exiting the auxiliary calibration of the positioning information of the navigation interface; if it is greater than, exiting the auxiliary calibration of the positioning information of the navigation interface and releasing the cache.

[0014] According to one embodiment of the present invention, the method further includes: if the positioning abnormal mileage is greater than a first preset mileage threshold and the positioning signal has not returned to normal, reminding the driver to use a mobile device for auxiliary navigation.

[0015] According to one embodiment of the present invention, the method further includes: while assisting in calibrating the positioning information of the navigation interface based on the abnormal positioning mileage, the changed intersection information and the road sign information, determining whether the road sign information matches the road information; if not, sending an Internet request to update the navigation plan, and identifying the nearest service area or identifying the nearest highway exit; based on the identified nearest service area, reminding the driver to check the in-vehicle navigation at the nearest service area, or based on the identified nearest highway exit, reminding the driver to exit from the nearest highway exit.

[0016] According to one embodiment of the present invention, the road information of the second preset mileage threshold of the in-vehicle navigation planning is cached, and the method further includes: when the mileage of the positioning abnormality is greater than the second preset mileage threshold and the positioning signal has not returned to normal, exiting the auxiliary calibration of the positioning information of the navigation interface and reminding the driver of the navigation abnormality, wherein the second preset mileage threshold is greater than the first preset mileage threshold.

[0017] To achieve the above-mentioned purpose, the second embodiment of the present invention proposes a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the vehicle-mounted navigation positioning auxiliary calibration method proposed in the first embodiment of the present invention is implemented.

[0018] To achieve the above-mentioned purpose, the third embodiment of the present invention proposes an electronic device, including a memory and a processor, wherein a computer program is stored on the memory. When the computer program is executed by the processor, the vehicle-mounted navigation positioning auxiliary calibration method proposed in the first embodiment of the present invention is implemented.

[0019] To achieve the above-mentioned objectives, a fourth embodiment of the present invention provides a vehicle comprising the electronic device provided in the third embodiment of the present invention.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a flow chart of a vehicle navigation positioning auxiliary calibration method according to an embodiment of the present invention;

[0022] Figure 2 is a flow chart of a positioning-assisted calibration method according to a specific embodiment of the present invention;

[0023] Figure 3 is a flow chart of a positioning-assisted calibration method according to another specific embodiment of the present invention;

[0024] Figure 4 is a structural block diagram of a controller according to an embodiment of the present invention;

[0025] Figure 5 2 is a schematic diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0027] The vehicle-mounted navigation positioning auxiliary calibration method, storage medium, electronic device, and vehicle according to the embodiments of the present invention are described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Figure 1 FIG. 1 is a flow chart of a vehicle navigation positioning auxiliary calibration method according to an embodiment of the present invention. Figure 1 As shown, the vehicle navigation positioning auxiliary calibration method may include:

[0029] S101, when the vehicle positioning signal is abnormal and the in-vehicle navigation system indicates that the vehicle is traveling on a highway, obtaining and caching road information planned by the in-vehicle navigation system, and obtaining the vehicle's real-time speed and visual information, wherein the road information includes the abnormal driving position and the changed intersection information;

[0030] S102, recording the abnormal driving position as the starting point, dynamically calculating the vehicle's mileage based on the real-time vehicle speed to obtain the abnormal driving mileage, and identifying road sign information based on visual information;

[0031] S103, performing auxiliary calibration on the positioning information of the navigation interface according to the positioning abnormal driving mileage, the change intersection information and the road sign information, and reminding the driver to change lanes at a preset reminder mileage before the vehicle reaches the next change intersection.

[0032] It should be noted that when driving on highways, insufficient auxiliary positioning accuracy can lead to missed intersections, etc. Low-precision auxiliary positioning is indistinguishable from abnormal positioning, and the positioning provided by low-precision auxiliary positioning is meaningless. Embodiments of the present invention are used to assist in accurately estimating the current position of a vehicle when driving at high speeds and a positioning signal is abnormal.

[0033] When the positioning signal is abnormal or weak, the in-vehicle navigation system may use positioning data to update the navigation interface, resulting in inaccurate positioning information. However, the in-vehicle navigation system can obtain the vehicle's real-time speed. To improve positioning accuracy, embodiments of the present invention calculate the current position based on the vehicle's real-time speed when the positioning signal is abnormal or weak, and perform auxiliary calibration of the positioning information on the navigation interface based on the calculated current position.

[0034] Specifically, after the in-vehicle navigation function is enabled, the vehicle's positioning signal is monitored. If the vehicle's positioning signal is determined to be abnormal, the system detects whether the vehicle is traveling on a highway. For example, if the in-vehicle navigation system indicates that the vehicle is traveling on a highway, the system determines that the vehicle is traveling on a highway. If the vehicle's positioning signal is abnormal, the system retrieves and caches road information mapped by the in-vehicle navigation system, simultaneously obtains the vehicle's real-time speed generated by the in-vehicle sensors, and obtains visual information collected by the vehicle's external cameras.

[0035] The abnormal driving position is recorded as the starting point, and the mileage of the vehicle is dynamically calculated based on the real-time vehicle speed to obtain the abnormal driving mileage. External visual recognition can be started, and a visual edge recognition algorithm can be used to identify road sign information based on visual information.

[0036] The navigation interface's positioning information is assisted in calibration based on abnormal mileage, intersection changes, and road sign information, accurately estimating the current navigation driving trajectory and reminding the driver to change lanes 2km (preset reminder mileage) before the vehicle reaches the next intersection, preventing the driver from missing the intersection.

[0037] The vehicle navigation positioning auxiliary calibration method of an embodiment of the present invention combines the road information planned by the vehicle navigation, the real-time speed of the vehicle, the mileage of the vehicle after positioning abnormality, the information of the changed intersections that need to be changed, visual recognition, etc. to assist in calibrating the positioning information of the navigation interface, accurately estimating the current navigation driving trajectory, and preventing the driver from missing the intersection.

[0038] In one embodiment of the present invention, the vehicle-mounted navigation positioning auxiliary calibration method may further include:

[0039] When the in-car navigation function is turned on, monitor the positioning signal and determine whether the positioning signal is abnormal.

[0040] It is feasible to monitor the positioning signal when the vehicle navigation function is turned on to determine whether the positioning signal is abnormal and whether to activate assisted navigation. Specifically, if the positioning signal is abnormal, assisted navigation is activated to perform auxiliary calibration of the positioning information on the navigation interface. Specifically, if the vehicle's positioning signal is abnormal and the vehicle is traveling on a highway, the above embodiment is used to perform auxiliary calibration of the positioning information on the navigation interface.

[0041] In one embodiment of the present invention, due to the storage capacity, when caching the road information planned by the vehicle navigation system, the road information of the second preset mileage threshold may be cached. For example, the road information of 50 km planned by the vehicle navigation system may be cached.

[0042] It should be noted that the embodiment of the present invention does not limit the second preset mileage threshold.

[0043] In one embodiment of the present invention, the transformed intersection information includes the transformed intersection name and its corresponding transformed mileage. The auxiliary calibration of the positioning information of the navigation interface based on the abnormal driving mileage, the transformed intersection information, and the road sign information may include:

[0044] When it is determined based on the information about the road change that there is a road change within the first preset mileage threshold, the remaining mileage is calculated based on the abnormal driving mileage and the road change mileage corresponding to the next road change ahead of the vehicle;

[0045] If the remaining mileage is greater than or equal to the first preset mileage, the positioning information of the navigation interface is updated at a first preset time interval according to the abnormal positioning mileage;

[0046] If the remaining mileage is less than the first preset mileage and greater than or equal to the second preset mileage, determining whether the name of the changed intersection corresponding to the next intersection ahead of the vehicle is recognized based on the road sign information, and updating the positioning information of the navigation interface at a second preset time interval based on the abnormal positioning mileage and the recognition result, wherein the second preset mileage is less than the first preset mileage, and the second preset time interval is less than the first preset time interval;

[0047] If the remaining mileage is less than the second preset mileage, the positioning information of the navigation interface is updated at a third preset time interval based on the abnormal driving mileage and road sign information, wherein the third preset time interval is less than the second preset time interval.

[0048] Specifically, if Figure 2 As shown, based on the interchange information, it is determined whether there is an interchange that requires a change within a first preset mileage threshold, such as 30 km. It should be noted that the interchange mileage corresponding to the cached interchange name is the distance from the abnormal driving location to the interchange. If an interchange exists with an interchange mileage less than 30 km, it can be determined that an interchange requires a change within the first preset mileage threshold.

[0049] It should be noted that there may be multiple intersections ahead of the vehicle that require changing. During positioning information-assisted calibration, the remaining range is calculated based on the mileage at the abnormal positioning and the corresponding change range at the next intersection ahead of the vehicle. The navigation interface's positioning information is updated based on the remaining range using the corresponding positioning update time and positioning determination method.

[0050] In a specific example, when the remaining mileage is ≥5 km (a first preset mileage), the positioning information is updated every 20 seconds (a first preset time interval) based on the positioning abnormal driving mileage.

[0051] When the remaining mileage is less than 5km (a first preset mileage) and greater than or equal to 1km (a second preset mileage), the system determines whether the name of the next intersection ahead of the vehicle has been identified based on the road sign information. Based on the abnormal mileage and the identification result, the system updates the positioning information every 5 seconds (a second preset time interval). When the road sign information corresponding to the next intersection ahead of the vehicle is identified, the positioning information on the navigation interface is updated, and a reminder to change the route is issued again.

[0052] When the remaining mileage is less than 1km (the second preset mileage), the positioning information of the navigation interface is updated every 1s (the third preset time interval) based on the positioning abnormal driving mileage and road sign information, and it is determined whether the vehicle has reached the road change intersection. After determining that the vehicle has reached the road change intersection, the positioning information of the navigation interface is updated.

[0053] It should be noted that the embodiment of the present invention does not limit the values ​​of the above-mentioned preset mileage and preset time interval, and they can be set according to actual needs.

[0054] In one embodiment of the present invention, the vehicle-mounted navigation positioning auxiliary calibration method further includes:

[0055] If the positioning signal returns to normal and is not interrupted within the preset time, determine whether the remaining mileage is less than the preset warning mileage;

[0056] If it is less than or equal to, the positioning information of the navigation interface is updated according to the positioning information provided by the positioning signal, and after reaching the next change intersection, the auxiliary calibration of the positioning information of the navigation interface is exited;

[0057] If it is greater, exit the auxiliary calibration of the positioning information of the navigation interface and release the cache.

[0058] Specifically, during the auxiliary calibration of the positioning information, if the positioning signal returns to normal and the positioning signal is not interrupted within 10 seconds (preset time), it is determined whether the remaining mileage is less than or equal to 2 km (preset reminder mileage).

[0059] If the remaining mileage is less than or equal to 2km, it means that the distance between the vehicle and the next intersection is less than or equal to 2km. At this time, the positioning information provided by the positioning signal is mainly used, and the positioning information of the auxiliary calibration is used as a supplement. After arriving at the next intersection, exit the auxiliary calibration of the positioning information of the navigation interface, which can effectively prevent the positioning signal from being abnormal again when the vehicle reaches the middle of the intersection.

[0060] If the remaining mileage is greater than 2km, it means that the distance between the vehicle and the next switching point is greater than 2km. At this time, the positioning information provided by the positioning signal is mainly used, and the auxiliary calibration of the positioning information of the navigation interface is exited, and the cache is released.

[0061] In one embodiment of the present invention, the vehicle-mounted navigation positioning auxiliary calibration method further includes:

[0062] If the positioning abnormal driving mileage is greater than a first preset mileage threshold and the positioning signal has not returned to normal, the driver is reminded to use a mobile device for assisted navigation.

[0063] Specifically, during the auxiliary calibration of the positioning information, it is detected whether the abnormal mileage is greater than 30km (a first preset mileage threshold). If the abnormal mileage is greater than 30km and the positioning signal has not returned to normal, the driver is reminded to use a mobile device for auxiliary navigation.

[0064] In one embodiment of the present invention, the vehicle-mounted navigation positioning auxiliary calibration method further includes:

[0065] While assisting in calibrating the positioning information of the navigation interface based on the abnormal mileage, changed intersection information and road sign information, it also determines whether the road sign information matches the road information;

[0066] If there is no match, a network request is sent to update the navigation plan and identify the nearest service area or the nearest highway exit;

[0067] Based on the nearest service area identified, the driver is reminded to go to the nearest service area to check the in-vehicle navigation, or based on the nearest highway exit identified, the driver is reminded to exit from the nearest highway exit.

[0068] In order to promptly remind the driver when the deviation occurs. While assisting in the calibration of the positioning information of the navigation interface, it is necessary to determine whether the road sign information matches the cached road information. Figure 3 .

[0069] If there is no match, a network request is sent to update the navigation plan. If an updated navigation plan is received, the nearest service area or highway exit is identified based on the updated navigation plan. The driver is prompted to check the in-car navigation system at the nearest service area or to exit the nearest highway exit. Navigation to the destination is then repeated. The internet complements existing local computing, providing a more intelligent experience with features like off-route warnings and intelligent recommendations.

[0070] If the updated navigation plan is not received, the nearest service area or the nearest highway exit is identified based on the road sign information, and the driver is reminded to go to the nearest service area to check the in-vehicle navigation based on the identified nearest service area, or to exit from the nearest highway exit based on the identified nearest highway exit.

[0071] After the reminder, the navigation interface is updated, the navigation abnormality is displayed, and the auxiliary calibration of the positioning information of the navigation interface is exited.

[0072] In the event of a deviated route, this embodiment of the present invention uses the internet to access road information and remind the driver to stop at a service area to check the vehicle's status, exit the nearest highway, or use mobile navigation to avoid long, erroneous routes. By collaborating with local edge computing and the cloud, assisted navigation can more intelligently guide drivers to safe driving.

[0073] In one embodiment of the present invention, the method for caching road information of a second preset mileage threshold for vehicle navigation planning further includes:

[0074] When the mileage of the positioning abnormality is greater than the second preset mileage threshold and the positioning signal has not returned to normal, the auxiliary calibration of the positioning information of the navigation interface is exited and the driver is reminded of the navigation abnormality, wherein the second preset mileage threshold is greater than the first preset mileage threshold.

[0075] Specifically, during the auxiliary calibration of positioning information, the system checks whether the mileage during which the positioning anomaly occurred is greater than 50 km (a second preset mileage threshold). Since only 50 km of road information planned by the onboard navigation system is cached, if the mileage during which the positioning anomaly occurred is greater than 50 km and the positioning signal has not returned to normal, the system exits the auxiliary calibration of the positioning information on the navigation interface and alerts the driver to the navigation anomaly.

[0076] When performing positioning information-assisted navigation, the embodiments of the present invention, combined with visual recognition of road sign information, can more accurately correct the route estimated based on vehicle speed and mileage difference; can accurately remind the driver to change route before changing intersections; can actively change routes to resolve navigation anomalies, and provide reminders of service areas and highway exits when driving along the original route.

[0077] The vehicle navigation positioning auxiliary calibration method in the embodiment of the present invention can accurately estimate the straight-line driving route within a certain period of time after the positioning abnormality through the vehicle navigation route planning, current position, and vehicle computer signals (such as vehicle speed, current mileage, etc.) when the positioning signal fails for a short period of time. The auxiliary navigation correctly guides the driver to follow the correct route form, especially when changing routes at highway intersections, to prevent the driver from taking the wrong intersection.

[0078] It should be noted that vehicles equipped with intelligent vehicle systems generally have visual recognition, intelligent vehicle systems, etc., and only the auxiliary navigation program needs to be integrated into the original vehicle system. The embodiment of the present invention does not require additional equipment.

[0079] The present invention provides a computer-readable storage medium.

[0080] In this embodiment, a computer program is stored on a computer-readable storage medium. When the computer program is executed by a processor, the above-mentioned vehicle-mounted navigation positioning auxiliary calibration method is implemented.

[0081] The present invention provides an electronic device.

[0082] In this embodiment, the electronic device may include a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the above-mentioned vehicle navigation positioning auxiliary calibration method is implemented.

[0083] Figure 4 4 is a structural block diagram of a controller according to an embodiment of the present invention.

[0084] like Figure 4 As shown, controller 500 includes a processor 501 and a memory 503. Processor 501 and memory 503 are connected, for example, via a bus 502. Optionally, controller 500 may further include a transceiver 504. It should be noted that in practical applications, the number of transceivers 504 is not limited to one, and the structure of controller 500 does not constitute a limitation on the embodiments of the present invention.

[0085] The processor 501 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. The processor 501 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0086] The bus 502 may include a path for transmitting information between the above components. The bus 502 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 502 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0087] The memory 503 is used to store a computer program corresponding to the vehicle navigation positioning auxiliary calibration method of the above embodiment of the present invention, and the computer program is controlled and executed by the processor 501. The processor 501 is used to execute the computer program stored in the memory 503 to implement the content shown in the above method embodiment.

[0088] Among them, the controller 500 includes but is not limited to: mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 4 The controller 500 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0089] The computer-readable storage medium and electronic device in the embodiments of the present invention can accurately estimate the straight-line driving route within a certain period of time after the positioning abnormality through the vehicle-mounted navigation route planning, current position, and vehicle-mounted signals (such as vehicle speed, current mileage, etc.) when the positioning signal fails for a short period of time. The auxiliary navigation correctly guides the driver to follow the correct route form, especially when the route needs to be changed at a highway intersection, which can prevent the driver from taking the wrong intersection.

[0090] The present invention provides a vehicle.

[0091] Figure 5 FIG is a schematic diagram of a vehicle according to an embodiment of the present invention. Figure 5 As shown, vehicle 1000 may include electronic device 500 as described above.

[0092] The vehicle in the embodiment of the present invention, based on the above-mentioned electronic equipment, can accurately estimate the straight-line driving route within a certain period of time after the positioning abnormality through the on-board navigation route planning, current position, and vehicle computer signals (such as vehicle speed, current mileage, etc.) when the positioning signal fails for a short period of time. The auxiliary navigation correctly guides the driver to follow the correct route form, especially when changing routes at highway intersections, to prevent the driver from taking the wrong intersection.

[0093] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), or in conjunction with such instruction execution system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by an instruction execution system, apparatus, or device, or in conjunction with such instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion having one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0094] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0095] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0096] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0097] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0098] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0099] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0100] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A vehicle-mounted navigation positioning auxiliary calibration method, characterized in that: The method comprises: When the vehicle's positioning signal is abnormal and the onboard navigation system indicates that the vehicle is traveling on a highway, the vehicle's real-time speed and visual information are obtained while obtaining and caching the road information planned by the onboard navigation system, wherein the road information includes the abnormal driving position and the changed intersection information; Recording the abnormal driving position as a starting point, dynamically calculating the mileage of the vehicle based on the real-time vehicle speed to obtain the abnormal driving mileage, and identifying road sign information based on the visual information; The positioning information of the navigation interface is assisted in calibration according to the positioning abnormal driving mileage, the change intersection information and the road sign information, and the driver is reminded to change lanes at a preset reminder mileage before the vehicle reaches the next change intersection.

2. The vehicle-mounted navigation positioning auxiliary calibration method according to claim 1, characterized in that: The method further comprises: When the vehicle navigation function is turned on, the positioning signal is monitored and whether the positioning signal is abnormal is determined.

3. The vehicle-mounted navigation positioning auxiliary calibration method according to claim 2, characterized in that: The transformed intersection information includes a transformed intersection name and its corresponding transformed mileage, and the auxiliary calibration of the positioning information of the navigation interface according to the abnormal positioning mileage, the transformed intersection information and the road sign information includes: When it is determined according to the intersection change information that there is an intersection change within the first preset mileage threshold, the remaining mileage is calculated according to the abnormal positioning mileage and the intersection change mileage corresponding to the next intersection ahead of the vehicle; If the remaining mileage is greater than or equal to a first preset mileage, updating the positioning information of the navigation interface at a first preset time interval according to the abnormal positioning mileage; If the remaining mileage is less than the first preset mileage and greater than or equal to a second preset mileage, determining whether the name of the changed intersection corresponding to the next intersection ahead of the vehicle is recognized based on the road sign information, and updating the positioning information of the navigation interface at a second preset time interval based on the abnormal positioning mileage and the recognition result, wherein the second preset mileage is less than the first preset mileage, and the second preset time interval is less than the first preset time interval; If the remaining mileage is less than the second preset mileage, the positioning information of the navigation interface is updated at a third preset time interval based on the positioning abnormal driving mileage and the road sign information, wherein the third preset time interval is less than the second preset time interval.

4. The vehicle-mounted navigation positioning auxiliary calibration method according to claim 3, characterized in that: The method further comprises: If the positioning signal returns to normal and the positioning signal is not interrupted within the preset time, determining whether the remaining mileage is less than the preset warning mileage; If it is less than or equal to, updating the positioning information of the navigation interface according to the positioning information provided by the positioning information, and exiting the auxiliary calibration of the positioning information of the navigation interface after reaching the next change intersection; If it is greater, exit the auxiliary calibration of the positioning information of the navigation interface and release the cache.

5. The vehicle-mounted navigation positioning auxiliary calibration method according to claim 3, characterized in that: The method further comprises: If the positioning abnormal mileage is greater than a first preset mileage threshold and the positioning signal has not returned to normal, the driver is reminded to use a mobile device for auxiliary navigation.

6. The vehicle-mounted navigation positioning auxiliary calibration method according to claim 3, characterized in that: The method further comprises: performing auxiliary calibration on the positioning information of the navigation interface based on the abnormal positioning mileage, the changed intersection information, and the road sign information, and determining whether the road sign information matches the road information; If there is no match, a network request is sent to update the navigation plan and identify the nearest service area or the nearest highway exit; The driver is reminded to check the in-vehicle navigation at the nearest service area according to the identified nearest service area, or is reminded to exit from the nearest highway exit according to the identified nearest highway exit.

7. The vehicle-mounted navigation positioning auxiliary calibration method according to claim 3, characterized in that: Caching road information of a second preset mileage threshold of the vehicle-mounted navigation plan, the method further comprising: When the positioning abnormal mileage is greater than a second preset mileage threshold and the positioning signal has not returned to normal, the auxiliary calibration of the positioning information of the navigation interface is exited and the driver is reminded of the navigation abnormality, wherein the second preset mileage threshold is greater than the first preset mileage threshold.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the vehicle-mounted navigation positioning auxiliary calibration method according to any one of claims 1 to 7 is implemented.

9. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the computer program is executed by the processor, the vehicle-mounted navigation positioning auxiliary calibration method according to any one of claims 1 to 7 is implemented.

10. A vehicle, characterized in that: Comprising an electronic device as claimed in claim 9.

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