Vehicle machine GPS positioning navigation system based on vehicle machine and mobile phone interconnection

Abstract

The invention discloses an in-vehicle GPS positioning navigation system based on in-vehicle mobile phone interconnection. The in-vehicle GPS positioning navigation system comprises a data exchange module, a positioning module, a map module, a navigation module, a path sharing module, a voice control module, a user interaction module and a remote battery alarm module. The data exchange module comprises a Bluetooth / Wi-Fi module, a USB interface, a protocol stack and an NFC module, and is used for realizing data exchange between the vehicle machine and the mobile phone; the positioning module is used for positioning by using the GPS function of the mobile phone; and the path sharing module is used for recording the driving route of the vehicle-mounted terminal and sharing the driving route record of the vehicle-mounted terminal to other users, so that the other users can directly obtain the shared driving route. According to the vehicle GPS positioning navigation system based on vehicle mobile phone interconnection, the navigation precision and flexibility are improved, the user experience is enhanced, the driving safety is improved, and in addition, the practicability and convenience of the system are further improved through the path sharing function and the remote battery alarm function.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile navigation, and in particular relates to a vehicle GPS positioning navigation system based on vehicle-machine and mobile phone interconnection. Background Art

[0002] Mobile phone and car computer interconnection refers to mapping the mobile phone content to the LCD screen, and performing corresponding functions such as navigation, music, and phone calls through the physical buttons or voice commands of the car computer, thereby enhancing driving pleasure. Car computer interconnection products are very popular with automobile manufacturers. On the one hand, mobile phone and car computer interconnection, as an industry hotspot of car networking, combines cars with smart phones, increases the sense of automobile technology, and improves user stickiness; on the other hand, the mobile phone and car computer interconnection solution makes the navigation function of the car computer no longer a standard feature, which helps save costs.

[0003] For example, the vehicle navigation and positioning terminal system disclosed in the announcement number CN110954094A, although it has achieved a strong guarantee for safe and convenient navigation of vehicle travel, the system adopts a modular design, has a simple structure, is easy to implement and has stable and reliable operation, and solves the actual use through the GPS positioning and orientation receiver and the inertial navigation system, realizes accurate navigation in various environments, and improves the positioning and orientation accuracy and reliability; however, it has not solved the existing problems of the vehicle GPS positioning and navigation system based on the interconnection of vehicle and mobile phone: after the user navigates the route, it is inconvenient to share the navigation route, resulting in the inability to share the navigation route used by the user with other users, so that other users cannot directly use the navigation route of the user for navigation, reducing social interactivity. In addition, when used in electric vehicles, it is inconvenient to monitor the status of the battery, so that timely reminders cannot be given when there are safety hazards in the battery. For this reason, we propose a vehicle GPS positioning and navigation system based on the interconnection of vehicle and mobile phone. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle GPS positioning and navigation system based on vehicle-mobile phone interconnection to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection, comprising a data exchange module, a positioning module, a map module, a navigation module, a path sharing module, a voice control module, a user interaction module and a remote battery alarm module; The data exchange module includes a Bluetooth / Wi-Fi module, a USB interface, a protocol stack and an NFC module, which are used to realize data exchange between the vehicle computer and the mobile phone; The positioning module is used to use the GPS function of the mobile phone for positioning. The positioning module includes a mobile phone GPS module, a positioning algorithm module, a positioning data processing unit, a location update module, and an indoor positioning module. The mobile phone GPS module is used to use the high-precision GPS module built into the mobile phone for positioning. The positioning algorithm module adopts a multi-source fusion positioning algorithm, combined with the positioning methods of GPS, base stations, and Wi-Fi to improve the positioning accuracy. The positioning data processing unit is used to parse the positioning data received from the mobile phone, correct the positioning data, eliminate deviations, and fuse multiple positioning data to generate the final positioning result. The processed positioning data is stored locally or uploaded to the cloud. The location update module is used to update the current position in real time and transmit the data to the vehicle computer. The indoor positioning module is used for indoor positioning through Bluetooth beacon technology; The map module is used to obtain map data in the mobile phone and display it on the vehicle computer; The navigation module is used to use the shortest path algorithm or multi-objective optimization algorithm to plan the optimal path according to factors such as road conditions and traffic flow, use the data connection of the mobile phone to obtain road condition information in real time, adjust the navigation path, and provide voice and graphic guidance to ensure that the driver can clearly understand the driving route; The route sharing module is used to record the driving route of the vehicle computer, and can share the driving route record of the vehicle computer with other users, so that other users can directly obtain the shared driving route and navigate along the driving route; The voice control module is used to control the navigation system through voice commands; The user interaction module is used to provide a friendly user interface to facilitate user operation; The remote battery alarm module is used to interconnect the mobile phone and the vehicle computer through the TEVERUN application and grant notification permissions. When there is a risk of overheating of the battery, an alarm is issued and the mobile phone is reminded to respond to potential risks in a timely manner; The user interaction module is also connected to the mobile terminal and the remote terminal through the communication module. After the remote terminal and the mobile terminal obtain the positioning data, the mobile terminal and the remote terminal can manually change the position, and transmit the position change information to the map module through the communication module, and display the manual position positioning information on the map module; the mobile terminal and the remote terminal are respectively connected to the MCU module on the scooter through the communication module, the MCU module is connected to the drive circuit through the gate drive circuit, the drive circuit is connected to the power motor, the power motor, the drive circuit and the MCU module form a parallel circuit with the distance sensor, the temperature sensor and the Hall sensor respectively, the Hall position sensor is used to sense the current position of the power motor, the distance sensor is used to sense the distance of the obstacle from the scooter, the temperature sensor is used to sense the ambient temperature of the scooter's driving route environment, and the temperature sensor and the distance sensor respectively feed back data to the MCU module; the MCU module is connected to the user interaction module, and the scooter user obtains the sudden information in the environment through the user interaction module, including the obstacles sensed by the distance sensor and the ambient temperature sensed by the temperature sensor, and displays it on the mobile terminal and the remote terminal.

[0006] Preferably, the positioning algorithm module adopts a multi-source fusion positioning algorithm to fuse the data of GPS positioning, base station positioning, and Wi-Fi positioning. The multi-source fusion positioning algorithm includes a Kalman filter algorithm. The Kalman filter algorithm fuses multiple positioning data through a Kalman filter to improve positioning accuracy.

[0007] Preferably, the Kalman filter algorithm includes the following formula: Equation of state: x k+1 =F k x k +B k u k +w k ; Among them, x k is the state vector, F k is the state transfer matrix, B k is the control matrix, u k is the control vector, w k is the process noise, k is the time step or the number of iterations, which is used to identify the current iteration step; Observation equation: z k =H k x k +v k ; Among them, z k is the observation vector, H k is the observation matrix, v k is the observation noise; Prediction Steps: ; ; in, is the predicted state, is the forecast covariance matrix, Q k is the process noise covariance matrix.

[0008] Preferably, the Kalman filter algorithm also includes the following formula: Update steps: ; ; ; Among them, K k is the Kalman gain, R k is the observation noise covariance matrix, I is the identity matrix, which is used to maintain the invariance of the matrix or vector and is used to update the covariance matrix in the Kalman filter algorithm.

[0009] Preferably, the location update module updates the location information at regular intervals, and transmits the location information to the vehicle computer via a wireless connection, ensuring synchronization of the location information between the vehicle computer and the mobile phone to avoid delay or loss; the indoor positioning module adopts Bluetooth beacon positioning, uses low-power Bluetooth beacons to transmit signals, estimates the location through the signal strength received by the mobile phone, creates a fingerprint database using Wi-Fi signal strength, determines the location by comparing signal strength, and uses ultra-wideband technology for high-precision positioning.

[0010] Preferably, the Bluetooth beacon positioning is specifically to transmit a signal through the Bluetooth beacon, the mobile phone receives the signal strength, and estimates the distance through the RSSI value, including the following formula: ; Among them, d is the distance, TxPower is the transmit power, RSSI is the received signal strength, and n is the environmental factor.

[0011] Preferably, the ultra-wideband technology specifically utilizes UWB signals for high-precision positioning, and determines the position by measuring the signal arrival time or flight time, including the following formula: ; Where d is the distance, c is the speed of light, and ΔT is the time difference of signal arrival.

[0012] Preferably, the path sharing module includes a path recording unit, a path processing unit, and a path sharing unit. The path recording unit uses a GPS module to record the user's driving path, including longitude and latitude coordinates, timestamp and other information, and stores the recorded data in the form of a text file or database, including longitude and latitude coordinates, timestamp and other information of the path points. The path processing unit is used to process the recorded path data to generate a format that is easy to share, generate complete path information based on the recorded path points, compress the path data to reduce the amount of data, and the path sharing unit is used to share the path data directly with other users via wireless transmission, and supports sharing the path information directly to social media platforms.

[0013] Preferably, the remote battery alarm module includes a battery status monitoring unit, a battery status processing unit, a wireless communication unit, an alarm unit and a user notification unit. The battery status monitoring unit is used to monitor the battery's voltage, current, temperature and other parameters in real time through sensors, and output them in the form of digital signals, which are read through a serial port or other interfaces. The battery status processing unit is used to process the collected battery status data, calculate the battery's remaining capacity and health status, and set a threshold for the battery status. It determines whether an alarm needs to be triggered based on the set threshold, and triggers an alarm when the voltage is lower than the set threshold. The wireless communication unit is used to transmit battery status data in real time to ensure that information is conveyed in a timely manner. The alarm unit is used to prompt alarm information on the vehicle computer through sound or light, and send the alarm information to the user's mobile phone for reminder through the wireless communication unit. The user notification unit is used to notify the user of battery status information through a mobile phone application.

[0014] Preferably, it also includes an emergency rescue module, which provides a one-touch help button to quickly contact the rescue agency in an emergency. It can send an alarm message when an accident occurs, provide the vehicle location, and store the user's medical information for reference during rescue. At the same time, emergency contact information is preset and automatically contacted in an emergency.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention significantly improves the positioning accuracy by using the positioning module set up, utilizing the high-precision GPS module built into the mobile phone, and combining it with a multi-source fusion positioning algorithm. Through the GPS function of the mobile phone, even if the GPS module of the vehicle itself fails or the signal is poor, the normal operation of the navigation system can be guaranteed, ensuring that reliable positioning information can be provided in various environments; (2) The present invention provides a route sharing module, which allows users to record their own travel routes and share them with friends through various channels, such as Bluetooth, Wi-Fi, email, social media, etc., to facilitate the organization of group travel and other activities. Through the route sharing function, users can share their navigation routes and experiences during travel with friends, so that friends can directly adopt the navigation routes, thereby enhancing social interactivity; (3) The present invention realizes remote monitoring of the vehicle battery status by setting up a remote battery alarm module to transmit the battery status information to the user's mobile phone through the wireless communication module. Even if the user is not next to the vehicle, the user can be notified in time by sound, light, text message, email, etc. when the battery status is abnormal, thus preventing accidents caused by battery overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural block diagram of the present invention; Figure 2 It is a structural block diagram of the path sharing module of the present invention; Figure 3 This is a structural block diagram of the remote battery alarm module of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 3 , the present invention provides a technical solution: a vehicle GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection, including a data exchange module, a positioning module, a map module, a navigation module, a path sharing module, a voice control module, a user interaction module and a remote battery alarm module; The data exchange module includes a Bluetooth / Wi-Fi module, a USB interface, a protocol stack, and an NFC module, which are used to realize data exchange between the vehicle computer and the mobile phone; The positioning module is used to use the GPS function of the mobile phone for positioning. The positioning module includes a mobile phone GPS module, a positioning algorithm module, a positioning data processing unit, a location update module, and an indoor positioning module. The mobile phone GPS module is used to use the high-precision GPS module built into the mobile phone for positioning. The positioning algorithm module adopts a multi-source fusion positioning algorithm, combined with the positioning methods of GPS, base stations, and Wi-Fi to improve positioning accuracy. The positioning data processing unit is used to parse the positioning data received from the mobile phone, correct the positioning data, eliminate deviations, and fuse multiple positioning data to generate the final positioning result. The processed positioning data is stored locally or uploaded to the cloud. The location update module is used to update the current position in real time and transmit the data to the vehicle computer. The indoor positioning module is used for indoor positioning through Bluetooth beacon technology; The map module is used to obtain map data from the mobile phone and display it on the vehicle computer; The navigation module is used to plan the optimal route based on factors such as road conditions and traffic flow using the shortest path algorithm or multi-objective optimization algorithm. It uses the mobile phone's data connection to obtain real-time road information and adjust the navigation route, providing voice and graphic guidance to ensure that the driver can clearly understand the driving route. The route sharing module is used to record the driving route of the vehicle computer and share the driving route record of the vehicle computer with other users, so that other users can directly obtain the shared driving route and navigate along this driving route; The voice control module is used to control the navigation system through voice commands; The user interaction module is used to provide a friendly user interface to facilitate user operation; The remote battery alarm module is used to interconnect the mobile phone and the vehicle computer through the TEVERUN application and grant notification permissions. When there is a risk of overheating of the battery, an alarm will be issued and the mobile phone will remind you to deal with potential risks in time; The user interaction module is also connected to the mobile terminal and the remote terminal through the communication module. After the remote terminal and the mobile terminal obtain the positioning data, the mobile terminal and the remote terminal can manually change the position, and transmit the position change information back to the map module through the communication module, and display the manual position positioning information on the map module; the mobile terminal and the remote terminal are respectively connected to the MCU module on the scooter through the communication module, the MCU module is connected to the drive circuit through the gate drive circuit, the drive circuit is connected to the power motor, the power motor, the drive circuit and the MCU module form a parallel circuit with the distance sensor, the temperature sensor and the Hall sensor respectively, the Hall position sensor is used to sense the current position of the power motor, the distance sensor is used to sense the distance of the obstacle from the scooter, the temperature sensor is used to sense the ambient temperature of the scooter's driving route environment, and the temperature sensor and the distance sensor respectively feed back data to the MCU module; the MCU module is connected to the user interaction module, and the scooter user obtains sudden information in the environment through the user interaction module, including obstacles sensed by the distance sensor and ambient temperature sensed by the temperature sensor, and displays it on the mobile terminal and the remote terminal. By adopting the user interaction module and the MCU module on the scooter for overall control, it is possible to detect obstacles and ambient temperature during the scooter's driving process, and then feed these auxiliary parameters back to the navigation system, thereby improving the intelligence of navigation.

[0019] refer to Figures 1 to 3 The present invention significantly improves the positioning accuracy by using the built-in high-precision GPS module of the mobile phone and combining the multi-source fusion positioning algorithm through the positioning module set. Through the GPS function of the mobile phone, even if the GPS module of the vehicle itself fails or the signal is poor, the normal operation of the navigation system can be guaranteed, ensuring that reliable positioning information can be provided in various environments; through the set path sharing module, users can record their own driving paths and share them with friends through various channels, such as Bluetooth, Wi-Fi, email, social media, etc., to facilitate the organization of group travel and other activities. Through the path sharing function, users can share their navigation routes and experiences during travel with friends, so that friends can directly adopt the navigation route, thereby enhancing social interactivity; through the set remote battery alarm module, the battery status information is transmitted to the user's mobile phone through the wireless communication module, so as to realize remote monitoring of the battery status of the vehicle. Even if the user is not next to the vehicle, when the battery status is abnormal, the user can be notified in time through sound, light, text message, email and other methods to prevent accidents caused by battery overheating.

[0020] refer to Figures 1 to 3The positioning algorithm module adopts a multi-source fusion positioning algorithm to fuse the data of GPS positioning, base station positioning, and Wi-Fi positioning. The multi-source fusion positioning algorithm includes a Kalman filter algorithm. The Kalman filter algorithm fuses multiple positioning data through a Kalman filter to improve positioning accuracy.

[0021] refer to Figures 1 to 3 , where the Kalman filter algorithm includes the following formula: Equation of state: x k+1 =F k x k +B k u k +w k ; Among them, x k is the state vector, F k is the state transfer matrix, B k is the control matrix, u k is the control vector, w k is the process noise, k is the time step or the number of iterations, which is used to identify the current iteration step; Observation equation: z k =H k x k +v k ; Among them, z k is the observation vector, H k is the observation matrix, v k is the observation noise; Prediction Steps: ; ; in, is the predicted state, is the forecast covariance matrix, Q k is the process noise covariance matrix.

[0022] refer to Figures 1 to 3 , where the Kalman filter algorithm also includes the following formula: Update steps: ; ; ; Among them, K k is the Kalman gain, R k is the observation noise covariance matrix, I is the identity matrix, which is used to maintain the invariance of the matrix or vector and is used to update the covariance matrix in the Kalman filter algorithm.

[0023] refer to Figures 1 to 3 The location update module updates the location information at regular intervals and transmits the location information to the vehicle computer through a wireless connection to ensure synchronization of the location information between the vehicle computer and the mobile phone to avoid delay or loss; the indoor positioning module uses Bluetooth beacon positioning, uses low-power Bluetooth beacons to transmit signals, estimates the location through the signal strength received by the mobile phone, uses Wi-Fi signal strength to create a fingerprint database, determines the location by comparing signal strength, and uses ultra-wideband technology for high-precision positioning.

[0024] refer to Figures 1 to 3 , where Bluetooth beacon positioning is specifically to transmit signals through Bluetooth beacons, the mobile phone receives the signal strength, and estimates the distance through the RSSI value, including the following formula: ; Among them, d is the distance, TxPower is the transmit power, RSSI is the received signal strength, and n is the environmental factor.

[0025] refer to Figures 1 to 3 , where ultra-wideband technology specifically uses UWB signals for high-precision positioning, and determines the position by measuring the signal arrival time or flight time, including the following formula: ; Where d is the distance, c is the speed of light, and ΔT is the time difference of signal arrival.

[0026] refer to Figures 1 to 3 , where the path sharing module includes a path recording unit, a path processing unit, and a path sharing unit. The path recording unit uses a GPS module to record the user's driving path, including latitude and longitude coordinates, timestamps and other information, and stores the recorded data in the form of a text file or database, including the latitude and longitude coordinates, timestamps and other information of the path points. The path processing unit is used to process the recorded path data and generate a format that is easy to share. The complete path information is generated according to the recorded path points, and the path data is compressed to reduce the amount of data. The path sharing unit is used to directly share the path data with other users through wireless transmission, and supports sharing the path information directly to social media platforms; by adding the path sharing function, users can easily record their own driving paths and share the path information with friends. In specific implementation, the path data can be recorded through the GPS module, the data can be processed through algorithms, and the path information can be shared through multiple channels. These functions not only improve the practicality of the system, but also enhance the user experience.

[0027] refer to Figures 1 to 3, wherein the remote battery alarm module includes a battery status monitoring unit, a battery status processing unit, a wireless communication unit, an alarm unit and a user notification unit. The battery status monitoring unit is used to monitor the voltage, current, temperature and other parameters of the battery in real time through sensors, and output them in the form of digital signals, which are read through serial ports or other interfaces. The battery status processing unit is used to process the collected battery status data, calculate the remaining capacity and health status of the battery, and set the threshold of the battery status. According to the set threshold, it is determined whether to trigger an alarm. When the voltage is lower than the set threshold, the alarm is triggered. The wireless communication unit is used to transmit the battery status data in real time to ensure that the information is conveyed in time. The alarm unit is used to prompt the alarm information through sound or light on the vehicle computer, and send the alarm information to the user's mobile phone through the wireless communication unit for reminder. The user notification unit is used to notify the user of the battery status information through the mobile phone application. By adding the remote battery alarm function, the status of the vehicle computer battery can be monitored in real time, and the user can be notified in time when the battery status is abnormal, which not only improves the safety of the system, but also enhances the user experience. In specific implementation, the battery status can be monitored by sensors, the data can be processed by algorithms, and the information can be transmitted to the user's mobile phone through the wireless communication module.

[0028] refer to Figures 1 to 3 , which also includes an emergency rescue module, which provides a one-touch help button to quickly contact rescue agencies in an emergency. It can send alarm information when an accident occurs, provide vehicle location, and store the user's medical information for reference during rescue. At the same time, it presets emergency contact information and automatically contacts in an emergency; The emergency rescue module provides a one-click help function, which allows you to quickly contact rescue agencies in emergency situations, improve emergency response speed, automatically send alarm information when an accident occurs, and provide the vehicle location to facilitate rescue personnel to arrive at the scene quickly. It supports vehicle-to-vehicle communication and vehicle-to-infrastructure communication, improving driving safety and traffic efficiency.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The vehicle GPS positioning and navigation system based on vehicle and mobile phone interconnection is characterized by: It includes data exchange module, positioning module, map module, navigation module, path sharing module, voice control module, user interaction module and remote battery alarm module; The data exchange module includes a Bluetooth / Wi-Fi module, a USB interface, a protocol stack and an NFC module, which are used to realize data exchange between the vehicle computer and the mobile phone; The positioning module is used to use the GPS function of the mobile phone for positioning. The positioning module includes a mobile phone GPS module, a positioning algorithm module, a positioning data processing unit, a location update module, and an indoor positioning module. The mobile phone GPS module is used to use the high-precision GPS module built into the mobile phone for positioning. The positioning algorithm module adopts a multi-source fusion positioning algorithm, combined with the positioning methods of GPS, base stations, and Wi-Fi to improve the positioning accuracy. The positioning data processing unit is used to parse the positioning data received from the mobile phone, correct the positioning data, eliminate deviations, and fuse multiple positioning data to generate the final positioning result. The processed positioning data is stored locally or uploaded to the cloud. The location update module is used to update the current position in real time and transmit the data to the vehicle computer. The indoor positioning module is used for indoor positioning through Bluetooth beacon technology; The map module is used to obtain map data in the mobile phone and display it on the vehicle computer; The navigation module is used to use the shortest path algorithm or multi-objective optimization algorithm to plan the optimal path according to factors such as road conditions and traffic flow, use the data connection of the mobile phone to obtain road condition information in real time, adjust the navigation path, and provide voice and graphic guidance to ensure that the driver can clearly understand the driving route; The route sharing module is used to record the driving route of the vehicle computer, and can share the driving route record of the vehicle computer with other users, so that other users can directly obtain the shared driving route and navigate along the driving route; The voice control module is used to control the navigation system through voice commands; The user interaction module is used to provide a friendly user interface to facilitate user operation; The remote battery alarm module is used to interconnect the mobile phone and the vehicle computer through the TEVERUN application and grant notification permissions. When there is a risk of overheating of the battery, an alarm is issued and the mobile phone is reminded to respond to potential risks in a timely manner; The user interaction module is also connected to the mobile terminal and the remote terminal through the communication module. After the remote terminal and the mobile terminal obtain the positioning data, the mobile terminal and the remote terminal can manually change the position, and transmit the position change information to the map module through the communication module, and display the manual position positioning information on the map module; the mobile terminal and the remote terminal are respectively connected to the MCU module on the scooter through the communication module, the MCU module is connected to the drive circuit through the gate drive circuit, the drive circuit is connected to the power motor, the power motor, the drive circuit and the MCU module form a parallel circuit with the distance sensor, the temperature sensor and the Hall sensor respectively, the Hall position sensor is used to sense the current position of the power motor, the distance sensor is used to sense the distance of the obstacle from the scooter, the temperature sensor is used to sense the ambient temperature of the scooter's driving route environment, and the temperature sensor and the distance sensor respectively feed back data to the MCU module; the MCU module is connected to the user interaction module, and the scooter user obtains the sudden information in the environment through the user interaction module, including the obstacles sensed by the distance sensor and the ambient temperature sensed by the temperature sensor, and displays it on the mobile terminal and the remote terminal.

2. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 1 is characterized in that: The positioning algorithm module adopts a multi-source fusion positioning algorithm to fuse the data of GPS positioning, base station positioning, and Wi-Fi positioning. The multi-source fusion positioning algorithm includes a Kalman filter algorithm. The Kalman filter algorithm fuses multiple positioning data through a Kalman filter to improve positioning accuracy.

3. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 2 is characterized in that: The Kalman filter algorithm includes the following formula: Equation of state: x k+1 =F k x k +B k u k +w k ; Among them, x k is the state vector, F k is the state transfer matrix, B k is the control matrix, u k is the control vector, w k is the process noise, k is the time step or the number of iterations, which is used to identify the current iteration step; Observation equation: z k =H k x k +v k ; Among them, z k is the observation vector, H k is the observation matrix, v k is the observation noise; Prediction steps: ； ； in, is the predicted state, is the prediction covariance matrix, Q k is the process noise covariance matrix.

4. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 3 is characterized in that: The Kalman filter algorithm also includes the following formula: Update steps: ； ； ； Among them, K k is the Kalman gain, R k is the observation noise covariance matrix, I is the identity matrix, which is used to maintain the invariance of the matrix or vector and is used to update the covariance matrix in the Kalman filter algorithm.

5. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 1 is characterized in that: The location update module updates the location information at regular intervals and transmits the location information to the vehicle computer via a wireless connection to ensure synchronization of the location information between the vehicle computer and the mobile phone to avoid delay or loss; the indoor positioning module adopts Bluetooth beacon positioning, uses low-power Bluetooth beacons to transmit signals, estimates the location through the signal strength received by the mobile phone, creates a fingerprint database using Wi-Fi signal strength, determines the location by comparing signal strength, and uses ultra-wideband technology for high-precision positioning.

6. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 5 is characterized in that: The Bluetooth beacon positioning is specifically to transmit a signal through the Bluetooth beacon, the mobile phone receives the signal strength, and estimates the distance through the RSSI value, including the following formula: ； Among them, d is the distance, TxPower is the transmit power, RSSI is the received signal strength, and n is the environmental factor.

7. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 6 is characterized by: The ultra-wideband technology specifically utilizes UWB signals for high-precision positioning, and determines the position by measuring the signal arrival time or flight time, including the following formula: ； Where d is the distance, c is the speed of light, and ΔT is the time difference of signal arrival.

8. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 1 is characterized in that: The path sharing module includes a path recording unit, a path processing unit, and a path sharing unit. The path recording unit uses a GPS module to record the user's driving path, including latitude and longitude coordinates, timestamps and other information, and stores the recorded data in the form of a text file or database, including the latitude and longitude coordinates, timestamps and other information of the path points. The path processing unit is used to process the recorded path data to generate a format that is easy to share, generate complete path information based on the recorded path points, compress the path data, and reduce the amount of data. The path sharing unit is used to share the path data directly with other users via wireless transmission, and supports sharing the path information directly to social media platforms.

9. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 1 is characterized by: The remote battery alarm module includes a battery status monitoring unit, a battery status processing unit, a wireless communication unit, an alarm unit and a user notification unit. The battery status monitoring unit is used to monitor the battery's voltage, current, temperature and other parameters in real time through sensors, and output them in the form of digital signals, which are read through a serial port or other interfaces. The battery status processing unit is used to process the collected battery status data, calculate the battery's remaining capacity and health status, and set a threshold for the battery status. It determines whether an alarm needs to be triggered based on the set threshold, and triggers an alarm when the voltage is lower than the set threshold. The wireless communication unit is used to transmit battery status data in real time to ensure that information is conveyed in a timely manner. The alarm unit is used to prompt alarm information on the vehicle computer through sound or light, and send the alarm information to the user's mobile phone for reminder through the wireless communication unit. The user notification unit is used to notify the user of battery status information through a mobile phone application.

10. The vehicle-machine GPS positioning and navigation system based on vehicle-machine and mobile phone interconnection according to claim 1 is characterized in that: It also includes an emergency rescue module, which provides a one-touch help button to quickly contact rescue agencies in an emergency. It can send an alarm message in the event of an accident, provide the vehicle location, and store the user's medical information for reference during rescue. At the same time, emergency contact information is preset and automatically contacted in an emergency.

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