Enhanced vehicle-mounted accident emergency call device and system

Abstract

The invention discloses an enhanced vehicle-mounted accident emergency call device and system, and relates to the technical field of automotive electronics, the enhanced vehicle-mounted accident emergency call device applies a remote update and support function to an AECS, expands the application scene of the AECS, improves the safety performance of an intelligent networked automobile, the AECS is not a one-time delivery function any more, continuous maintenance and update can be achieved, and the service life of the AECS is prolonged. The actual usable life of the AECS is prolonged, and the actual usable region of the AECS is widened; the enhanced vehicle-mounted accident emergency call system supports remote updating and timely updating aiming at information changes of regions, laws and regulations and the like, the vehicle is not limited to be available in a certain region, a main engine plant does not need to design and develop a special part facing a vehicle exit, a vehicle owner carries out transnational self-driving travel, AECS can still be used, the maintenance cost is reduced, and the vehicle-mounted accident emergency call system is suitable for popularization and application. Therefore, the safety performance of the intelligent networked automobile is improved, and the driver experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile electronics, and in particular to an enhanced vehicle-mounted accident emergency calling device and system. Background Art

[0002] The on-board accident emergency call system AECS has now become a key indicator for measuring the safety performance of intelligent connected vehicles. Many countries have issued mandatory regulations requiring newly produced vehicles to be equipped with AECS. Different models have different network topologies and different rescue agencies in different countries, resulting in different hardware and multiple versions of software for each model and country. Due to differences in regulatory requirements, the following problems arise:

[0003] 1. Geographical limitations:

[0004] AECS is highly dependent on local rescue systems and infrastructure. There are differences in systems and facilities in different regions (such as positioning systems, communication protocol stacks, emergency call numbers, MSD formats, etc.), which means that the existing AECS can only support normal operation in a specific region.

[0005] 2. Production false alarm problem:

[0006] For export vehicles produced, transported and stored in China, due to differences in rescue systems and infrastructure, the AECS cannot be properly networked and connected to the PSAP or TPSP, which will cause false fault codes (DTCs) and activate the fault indicator light, causing the vehicle to fail the off-line inspection, increasing the complexity of the production, transportation and storage processes.

[0007] 3. Use false positive issues:

[0008] If a driver drives in an area not supported by AECS, AECS's false fault alarms will seriously interfere with the driver's normal experience. Continuous fault prompts will make the driver feel uneasy and even doubt the overall reliability of the vehicle.

[0009] 4. Maintenance cost:

[0010] To avoid false alarms, vehicle owners or maintenance personnel need to manually shut down the power supply of the AECS, which not only increases the difficulty of operation but also increases maintenance costs. In addition, frequent improper maintenance operations may also cause equipment damage, further increasing maintenance costs.

[0011] 5. The current AECS of various OEMs are all special parts designed and developed for vehicle export locations. They do not support multiple regions, do not support adaptive turning on / off the emergency call function after the vehicle is offline, and do not support subsequent updates. Summary of the invention

[0012] In view of the problems existing in the prior art, the present invention conceives an enhanced vehicle-mounted accident emergency call device and system. The AECS automatically identifies the region where the vehicle is located and adaptively turns on / off the emergency call function according to the actual situation of the region, so as to solve the above-mentioned problems that may arise when AECS is applied to intelligent connected vehicles.

[0013] One of the technical solutions adopted to implement the present invention is: an enhanced vehicle-mounted accident emergency call device, characterized in that it includes: a NAD module, a GNSS module, a storage module, a SIM card module, an MCU module and a CAN module, the NAD module supports self-update of configuration files, supports networking services through mobile network antennas or built-in antennas, supports remote update services, regional identification services, AECS function configuration services and various logical judgments and result outputs, supports reading and writing data and configuration tables in the storage module, and supports driving emergency call microphones and emergency call speakers; the GNSS module supports the NAD module to update configuration files, and adapts to positioning system requirements in different regions through configuration files. The storage module supports the storage of diagnostic configuration data, NAD module configuration files, GNSS module configuration files, offline geocoding database, offline AECS service configuration table, and offline AECS function configuration table; the SIM card module supports over-the-air number writing and over-the-air configuration, and can enable, configure, or disable call services, data services, roaming services, and AECS services according to TSP or cloud servers; the MCU module supports reading and writing diagnostic configuration data in the storage module, supports diagnostic service logic, supports converting user feedback and status display module output results into CAN signals and sending them through the bus, and supports driving status indicator lights and emergency call switches; the CAN module supports CAN or CAN FD switching.

[0014] Furthermore, it also includes: a backup battery and a built-in antenna. The backup battery ensures that emergency calls can still be made after the external power supply of the AECS device is disconnected, and the built-in antenna ensures that emergency calls can still be made after the external antenna of the AECS device is disconnected.

[0015] Furthermore, the NAD module includes a system on a chip, which runs a Linux system internally.

[0016] Furthermore, the SIM card module activates or cancels an account according to the TSP or the cloud server.

[0017] The second technical solution adopted to implement the present invention is: an enhanced vehicle-mounted accident emergency call system, characterized in that it includes: an enhanced vehicle-mounted accident emergency call device, a GNSS antenna, a mobile network antenna, a vehicle-mounted battery and a UDS diagnostic interface are arranged on the outside of the enhanced vehicle-mounted accident emergency call device, the enhanced vehicle-mounted accident emergency call device receives satellite GPS or BDS or Galileo or GLONASS signals through the GNSS antenna, the enhanced vehicle-mounted accident emergency call device is connected to the TSP or cloud server through the mobile network antenna communication, the enhanced vehicle-mounted accident emergency call device is configured with maintenance personnel through the UDS diagnostic interface, the vehicle-mounted battery is electrically connected to the enhanced vehicle-mounted accident emergency call device, the driver communicates with the enhanced vehicle-mounted accident emergency call device through an emergency call button, an emergency call speaker or an emergency call microphone, and the driver or maintenance personnel communicate with the enhanced vehicle-mounted accident emergency call device through the status indicator light, the dashboard or the vehicle-mounted infotainment system.

[0018] Furthermore, the GNSS module monitors the position changes of the vehicle in real time and supports configuration file updates to adapt to positioning systems in different regions.

[0019] Furthermore, the GNSS module provides data, and the region identification module identifies the region code of the vehicle's current location through an online identification service or an offline geocoding database based on the data provided by the GNSS module.

[0020] Further, according to the obtained region code, whether the region supports AECS service and the supported AECS service category is determined through online identification service or offline AECS service configuration table.

[0021] The beneficial effects of the enhanced vehicle-mounted accident emergency call device and system of the present invention are embodied in:

[0022] 1. An enhanced on-board accident emergency call device, with remote update and support functions applied to AECS, expands AECS application scenarios, and improves the safety performance of intelligent connected vehicles. AECS is no longer a "one-time" delivery function, but can be continuously maintained and updated, which increases the actual usable life of AECS and expands the actual usable area of ​​AECS, thereby improving the safety performance of intelligent connected vehicles and improving the driver's experience;

[0023] 2. An enhanced on-board accident emergency call system that supports remote updates and timely updates based on changes in regional and regulatory information. Vehicles are no longer limited to a certain region, and OEMs do not need to design and develop special parts for vehicle export locations. Car owners can still use AECS when they go on cross-border self-driving tours, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an enhanced vehicle accident emergency call system;

[0025] Figure 2 It is a structural diagram of an enhanced vehicle-mounted accident emergency call device;

[0026] Figure 3 The invention is a work flow chart of an enhanced vehicle accident emergency call system. DETAILED DESCRIPTION

[0027] The following is combined with Figures 1 to 3 Specific implementation methods will further describe the present invention in detail. To make the purposes, technical solutions and advantages of the implementation methods clearer, the technical solutions in the implementation methods will be clearly and completely described in combination with the embodiments of the present invention. The specific implementation methods described here are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] As attached Figure 1 As shown, an enhanced vehicle-mounted emergency call system for accident accidents includes: an enhanced vehicle-mounted emergency call device for accident accidents, a GNSS antenna, a mobile network antenna, a vehicle-mounted battery and a UDS diagnostic interface are arranged on the outside of the enhanced vehicle-mounted emergency call device for accident accidents, the enhanced vehicle-mounted emergency call device for accident accidents receives satellite GPS or BDS or Galileo or GLONASS signals through the GNSS antenna, the enhanced vehicle-mounted emergency call device for accident accidents is connected to a TSP or a cloud server through the mobile network antenna communication, the enhanced vehicle-mounted emergency call device for accident accidents is configured with a maintenance personnel through the UDS diagnostic interface, the vehicle-mounted battery is electrically connected to the enhanced vehicle-mounted emergency call device for accident accidents, and the driver presses an emergency call button, The emergency call speaker or the emergency call microphone communicates with the enhanced on-vehicle accident emergency call device, and the driver or maintenance personnel communicates with the enhanced on-vehicle accident emergency call device through the status indicator light, the dashboard or the on-vehicle infotainment system. The GNSS module monitors the vehicle's position changes in real time and supports configuration file updates to adapt to positioning systems in different regions. The GNSS module provides data, and the regional identification module identifies the vehicle's current region code through an online identification service or an offline geocoding database based on the data provided by the GNSS module. Based on the obtained region code, it is determined whether the region supports AECS services and the supported AECS service categories through an online identification service or an offline AECS service configuration table.

[0029] As attached Figure 2As shown, an enhanced vehicle-mounted accident emergency call device includes: a NAD module, a GNSS module, a storage module, a SIM card module, a backup battery, a built-in antenna, an MCU module and a CAN module. The NAD module includes a system on a chip and runs a Linux system internally. The NAD module supports self-update of configuration files, supports networking services through a mobile network antenna or a built-in antenna, supports remote update services, regional identification services, AECS function configuration services and various logical judgments and result outputs, supports reading and writing data and configuration tables in the storage module, and supports driving an emergency call microphone and an emergency call speaker; the GNSS module supports the NAD module to update configuration files, and adapts to positioning system requirements in different regions through configuration file updates; the The storage module supports storage of diagnostic configuration data, NAD module configuration files, GNSS module configuration files, offline geocoding database, offline AECS service configuration table, and offline AECS function configuration table; the SIM card module activates or cancels an account according to the TSP or cloud server, and the SIM card module supports over-the-air number writing and over-the-air configuration, and can enable, configure or disable call services, data services, roaming services, and AECS services according to the TSP or cloud server; the MCU module supports reading and writing diagnostic configuration data in the storage module, supports diagnostic service logic, supports converting user feedback and status display module output results into CAN signals and sending them through the bus, and supports driving status indicator lights and emergency call switches; the CAN module supports CAN or CAN FD switching, and the backup battery ensures that emergency calls can still be made after the external power supply of the AECS device is disconnected, and the built-in antenna ensures that emergency calls can still be made after the external antenna of the AECS device is disconnected.

[0030] As attached Figure 3 Shown is a workflow diagram of an enhanced vehicle accident emergency call system.

[0031] Embodiment 1:

[0032] Vehicles exported to Saudi Arabia are configured as AECS automatic, and the enabling status is configured through the UDS diagnostic service. When the AECS function is configured to be enabled or disabled, the AECS function is forced to be turned on / off. When the vehicle rolls off the factory and the system is started:

[0033] 1. The GNSS module obtains vehicle location data (such as GPGGA, GPRMC, etc.).

[0034] 2. The region identification module uses the acquired valid GNSS data to identify the vehicle's current region code CN through online identification services or offline geocoding databases.

[0035] 3. The AECS service judgment module determines that the current region does not support the AECS service through the online identification service or the offline AECS service configuration table based on the obtained region code CN.

[0036] 4. The AECS function is turned off, and the DTC fault and fault indicator light are shielded.

[0037] 5. The user feedback and status display module provides the user with the current status of the AECS function through the vehicle dashboard: Not supported in the current region.

[0038] 6. The vehicle passes the offline inspection.

[0039] Embodiment 2:

[0040] Vehicles exported to Saudi Arabia are configured as AECS automatic, and the enabling status is configured through the UDS diagnostic service. When the AECS function is configured to be enabled or disabled, the AECS function is forced to be turned on / off. When the vehicle arrives in Saudi Arabia and the system is started:

[0041] 1. The GNSS module obtains vehicle location data (such as GPGGA, GPRMC, etc.).

[0042] 2. The region identification module uses the acquired valid GNSS data to identify the vehicle's current region code SA through online identification services or offline geocoding databases.

[0043] 3. The AECS service judgment module determines, based on the obtained region code SA, through online identification service or offline AECS service configuration table, that the current region supports AECS service, and the supported AECS service category is SASO.

[0044] 4. The AECS function configuration module determines the AECS function configuration file according to the AECS service category SASO through the online identification service or the offline AECS function configuration table, and enables and configures the AECS functions (such as the positioning system GPS L1, the emergency call number 911, the MSD format BS EN 15722, etc.).

[0045] 5. The user feedback and status display module provides the user with the current status of the AECS function through the vehicle instrument panel: AECS is on.

[0046] 6. The remote update and support module will periodically perform update task checks to ensure that the data and configuration used by the GNSS module, regional identification module, AECS service judgment module, and AECS function configuration module are the latest.

[0047] Embodiment 3:

[0048] When the AECS service expires (e.g. the vehicle is 10 years old) and the owner no longer pays the service fee:

[0049] 1. Maintenance personnel configure the enabling status to disable the AECS function through the UDS diagnostic service.

[0050] 2. The AECS function is turned off, and the DTC fault and fault indicator light are shielded.

[0051] 3. The user feedback and status display module provides the user with the current status of the AECS function through the vehicle dashboard: AECS is off.

[0052] 4. The AECS function is turned off (other vehicle functions are not affected), and the remote update and support module stops checking the update task until the next time the maintenance personnel configure the enabling status to enable the AECS function through the UDS diagnostic service.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An enhanced vehicle-mounted emergency call device, characterized in that it include: NAD module, GNSS module, storage module, SIM card module, MCU module and CAN module. The NAD module supports self-update of configuration files, supports networking services through mobile network antennas or built-in antennas, supports remote update services, regional identification services, AECS function configuration services and various logical judgments and result outputs, supports reading and writing data and configuration tables in the storage module, and supports driving emergency call microphones and emergency call speakers; the GNSS module supports configuration file updates by the NAD module, and adapts to positioning system requirements in different regions through configuration file updates; the storage module supports storage of diagnostic configuration data, NAD module configuration files, GNSS module configuration files, offline geocoding databases, offline AECS service configuration tables, and offline AECS function configuration tables; the SIM card module supports over-the-air number writing and over-the-air configuration, and can enable, configure or disable call services, data services, roaming services, and AECS services according to TSP or cloud servers; the MCU module supports reading and writing diagnostic configuration data in the storage module, supports diagnostic service logic, supports converting user feedback and status display module output results into CAN signals and sending them through the bus, and supports driving status indicator lights and emergency call switches; the CAN module supports CAN or CAN FD switching.

2. The enhanced vehicle-mounted emergency call device according to claim 1, characterized in that: It also includes: a backup battery and a built-in antenna. The backup battery ensures that emergency calls can still be made after the external power supply of the AECS device is disconnected, and the built-in antenna ensures that emergency calls can still be made after the external antenna of the AECS device is disconnected.

3. The enhanced vehicle-mounted emergency call device according to claim 1, characterized in that: The NAD module includes a system on a chip, and a Linux system runs inside.

4. The enhanced vehicle-mounted emergency call device according to claim 1, characterized in that: The SIM card module activates or cancels an account according to the TSP or the cloud server.

5. An enhanced vehicle accident emergency call system, characterized in that it include: An enhanced vehicle-mounted emergency call device for accidents, wherein a GNSS antenna, a mobile network antenna, a vehicle-mounted battery and a UDS diagnostic interface are arranged on the outside of the enhanced vehicle-mounted emergency call device for accidents, the enhanced vehicle-mounted emergency call device for accidents receives satellite GPS or BDS or Galileo or GLONASS signals through the GNSS antenna, the enhanced vehicle-mounted emergency call device for accidents is connected to a TSP or a cloud server through the mobile network antenna communication, the enhanced vehicle-mounted emergency call device for accidents is configured for diagnosis by maintenance personnel through the UDS diagnostic interface, the vehicle-mounted battery is electrically connected to the enhanced vehicle-mounted emergency call device for accidents, the driver communicates with the enhanced vehicle-mounted emergency call device for accidents through an emergency call button, an emergency call speaker or an emergency call microphone, and the driver or maintenance personnel communicate with the enhanced vehicle-mounted emergency call device for accidents through a status indicator light, a dashboard or a vehicle-mounted infotainment system.

6. The enhanced vehicle accident emergency call system according to claim 5, characterized in that: The GNSS module monitors the position changes of the vehicle in real time and supports configuration file updates to adapt to positioning systems in different regions.

7. The enhanced vehicle accident emergency call system according to claim 6, characterized in that: The GNSS module provides data, and the region identification module identifies the region code of the vehicle's current location through an online identification service or an offline geocoding database based on the data provided by the GNSS module.

8. The enhanced vehicle accident emergency call system according to claim 7, characterized in that: According to the obtained region code, whether the region supports AECS service and the supported AECS service category is determined through online identification service or offline AECS service configuration table.

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