CN117762459A - Adaptive rate OTA method, device and equipment for vehicle-mounted positioning system - Google Patents
Adaptive rate OTA method, device and equipment for vehicle-mounted positioning system Download PDFInfo
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Abstract
The application provides an adaptive rate OTA method, a device and equipment for a vehicle-mounted positioning system, which relate to the technical field of vehicle-mounted systems, wherein the vehicle-mounted positioning system comprises a host machine and a plurality of functional components connected with the host machine; the method comprises the following steps: the vehicle-mounted positioning system is powered on and started, a host initializes an initialization rate, and a system OTA function is started; the host queries the boundary rate supported by each functional unit based on the initialization rate; the host negotiates with the target functional unit through the initialization rate, the host and the target functional unit are switched to the target boundary rate supported by the target functional unit, and OTA upgrading is carried out on the target functional unit according to the target boundary rate through the target boundary rate. The method and the device can realize self-adaptive rate according to the functional components, and improve OTA upgrading performance and upgrading efficiency of the whole system.
Description
Technical Field
The present disclosure relates to the field of vehicle-mounted systems, and in particular, to an adaptive rate OTA method, apparatus, and device for a vehicle-mounted positioning system.
Background
All functional components in the vehicle-mounted positioning system are connected through a CAN bus to conduct data interaction. Because the functions of the functional components are different, the cost performance is considered, and the devices adopted by the hardware design are different, so that the maximum CAN communication rate supported by the components is inconsistent. To ensure proper system operation, the speed of the host on the bus cannot be higher than the speed of the smallest component with the maximum CAN communication speed. However, when implementing the system OTA function, since the size of the OTA firmware is several orders of magnitude larger than the size of the general command data, if the minimum rate is maintained, the OTA performance will be poor, and the advantages of the high communication rate component in the system cannot be reflected.
Disclosure of Invention
The purpose of the application is to provide an adaptive rate OTA method, an adaptive rate OTA device and adaptive rate OTA equipment for an on-vehicle positioning system, which can realize the adaptive rate according to functional components, and improve OTA upgrading performance and upgrading efficiency of the whole system.
In a first aspect, the present invention provides an adaptive rate OTA method for an on-board positioning system, the on-board positioning system comprising a host, and a plurality of functional components connected to the host; the method comprises the following steps:
the vehicle-mounted positioning system is powered on and started, a host initializes an initialization rate, and a system OTA function is started;
the host queries the boundary rate supported by each functional unit based on the initialization rate;
the host negotiates with the target functional unit through the initialization rate, the host and the target functional unit are switched to the target boundary rate supported by the target functional unit, and OTA upgrading is carried out on the target functional unit according to the target boundary rate through the target boundary rate.
In an alternative embodiment, the method further comprises:
after the upgrade is completed, the host negotiates with the target functional unit through the target boundary rate, and the host and the target functional unit are simultaneously switched to the initialization rate.
In an alternative embodiment, the method further comprises:
and carrying out OTA upgrading on the functional components according to the boundary rate supported by the functional components.
In an alternative embodiment, the OTA upgrade is sequentially performed on the functional units according to the boundary rate supported by the functional units, including:
the host negotiates with the first target functional component through the initialization rate, the host and the first target functional component are switched to a first target boundary rate supported by the first target functional component, and OTA upgrading is carried out on the first target functional component according to the first target boundary rate through the first target boundary rate;
after the upgrading is finished, the host negotiates with the first target functional component through the first target boundary rate, and the host and the first target functional component are simultaneously switched to the initialization rate;
the host negotiates with the second target functional component through the initialization rate, the host and the second target functional component are both switched to a second target boundary rate supported by the second target functional component, and OTA upgrading is carried out on the second target functional component according to the second target boundary rate through the second target boundary rate;
and the like until all the functional components are subjected to OTA upgrading.
In an alternative embodiment, the method further comprises:
the host determines a time delay interval and sends a base address to each functional unit;
determining delay response time according to the current address, the base address and the delay interval of each functional component; the delay response time is used for replying the response message after the interval delay response time after receiving the request message of the host.
In an alternative embodiment, determining the delay response time based on the current address, the base address, and the delay interval for each feature comprises:
delay response time= (current address-base address) ×delay interval.
In a second aspect, the present invention provides an adaptive rate OTA apparatus for an on-board positioning system, the on-board positioning system comprising a host, and a plurality of functional components connected to the host; the device comprises:
the starting module is used for powering on and starting the vehicle-mounted positioning system, initializing the host to an initialization rate and starting the OTA function of the system;
the inquiry module is used for inquiring the boundary rate supported by each functional component based on the initialization rate by the host;
the self-adaptive rate module is used for negotiating with the target functional component through the initialization rate, switching the host and the target functional component to the target boundary rate supported by the target functional component, and carrying out OTA upgrading on the target functional component according to the target boundary rate through the target boundary rate.
In an alternative embodiment, the apparatus further comprises:
and the rate switching module is used for negotiating the host with the target functional component through the target boundary rate after the upgrading is finished, and simultaneously switching the host and the target functional component to the initialization rate.
In a third aspect, the invention provides an electronic device comprising a processor and a memory storing computer executable instructions executable by the processor to implement the adaptive rate OTA method for an in-vehicle positioning system of any of the preceding embodiments.
In a fourth aspect, the invention provides a computer-readable storage medium storing computer-executable instructions that, when invoked and executed by a processor, cause the processor to implement the adaptive rate OTA method for an in-vehicle positioning system of any of the preceding embodiments.
The self-adaptive rate OTA method, the self-adaptive rate OTA device and the self-adaptive rate OTA device for the vehicle-mounted positioning system are provided, the vehicle-mounted positioning system is powered on and started, a host is initialized to an initialization rate, and a system OTA function is started; the host queries the boundary rate supported by each functional unit based on the initialization rate; the host negotiates with the target functional unit through the initialization rate, the host and the target functional unit are switched to the target boundary rate supported by the target functional unit, and OTA upgrading is carried out on the target functional unit according to the target boundary rate through the target boundary rate. According to the method, the speed adopted in OTA upgrading is determined according to the boundary speed of the functional component, so that the self-adaptive speed can be realized according to the functional component, and the OTA upgrading performance and the upgrading efficiency of the whole system are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of an adaptive rate OTA method for a vehicle positioning system according to an embodiment of the present application;
fig. 2 is a schematic diagram of a vehicle-mounted system according to an embodiment of the present application;
fig. 3 is a block diagram of an adaptive rate OTA device for a vehicle positioning system according to an embodiment of the present application;
fig. 4 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The embodiment of the application provides an adaptive rate OTA method for a vehicle-mounted positioning system, wherein the vehicle-mounted positioning system comprises a host and a plurality of functional components connected with the host; referring to fig. 1, the method mainly comprises the following steps:
step S110, the vehicle-mounted positioning system is powered on and started, the host initializes to an initialization rate, and the OTA function of the system is started. The OTA (Over-the-Air Technology) function refers to an on-line upgrade function of an in-vehicle system, which allows a vehicle owner to directly send updates to a vehicle through a mobile phone application or an Internet connection without going to a maintenance station.
In one embodiment, the initialization rate is the lowest rate at which the host is initialized.
In step S120, the host queries the boundary rate supported by each functional unit based on the initialization rate.
The boundary rate supported by each functional unit is the maximum rate supported by each functional unit.
In step S130, the host negotiates with the target functional unit through the initialization rate, and the host and the target functional unit are both switched to the target boundary rate supported by the target functional unit, and OTA upgrade is performed on the target functional unit according to the target boundary rate through the target boundary rate.
Further, after the upgrade is completed, the host negotiates with the target functional unit through the target boundary rate, and the host and the target functional unit are simultaneously switched to the initialization rate.
Referring to fig. 2, a host in the vehicle positioning system is connected with each functional component through a CAN bus, so as to ensure that the internal functional components are all subjected to OTA upgrade, and in an alternative embodiment, the functional components may be sequentially subjected to OTA upgrade according to the boundary rate supported by the functional components. The order of the upgrade is not limited to sequential upgrade, and in practical application, the upgrade order of the functional components may be determined according to the actual upgrade requirement.
In the implementation, the OTA upgrade is sequentially carried out on the functional components according to the boundary rate supported by the functional components, and the method specifically comprises the following steps:
the host negotiates with the first target functional component through the initialization rate, the host and the first target functional component are switched to a first target boundary rate supported by the first target functional component, and OTA upgrading is carried out on the first target functional component according to the first target boundary rate through the first target boundary rate;
after the upgrading is finished, the host negotiates with the first target functional component through the first target boundary rate, and the host and the first target functional component are simultaneously switched to the initialization rate;
the host negotiates with the second target functional component through the initialization rate, the host and the second target functional component are both switched to a second target boundary rate supported by the second target functional component, and OTA upgrading is carried out on the second target functional component according to the second target boundary rate through the second target boundary rate;
and the like until all the functional components are subjected to OTA upgrading.
In practical application, taking fig. 2 as an example, the system is powered on and started, the host initializes to the minimum rate and starts working, then the system OTA is started, and the host queries the maximum rate (a, B, … … C) supported by each component based on the minimum rate and stores the maximum rate. The method comprises the steps that a host negotiates with a component 1 at the lowest speed, the host and the component 1 are simultaneously switched to a speed A, the host performs OTA upgrade on the component 1 at the speed A, the host negotiates with the component 1 at the speed A after the upgrade is finished, and the host and the component 1 are simultaneously switched to the lowest speed. Then the host negotiates with the component 2 with the lowest rate, the host and the component 2 are simultaneously switched to the rate B, the host performs OTA upgrade on the component 2 with the rate B, the host negotiates with the component 2 with the rate B after the upgrade is completed, and the host and the component 2 are simultaneously switched to the lowest rate. And (5) circulating until all the components are completed in the OTA mode.
Further, when performing the OTA upgrade, the method further comprises: firstly, a host determines a time delay interval and sends a base address to each functional component; determining delay response time according to the current address, the base address and the delay interval of each functional component, specifically, delay response time= (current address-base address) x delay interval; the delay response time is used for replying the response message after the interval delay response time after receiving the request message of the host.
In practical application, the host first determines a delay interval, that is, a transmission time of a frame of data in the lowest rate mode, which is called interval_time. The host then sends a base address (the address of the smallest sub-component in the system) and interval_time to all sub-components, which calculate the delay time as (current address-base address) ×interval_time.
Taking two functional units of a host as an example, the address of the functional unit 1 is 10, the address of the functional unit 2 is 11, and the interval_time is 1ms. The base address is 10, and then the response delay of the functional unit 1 is (10-10) ×1=0, and the response is returned immediately without delay; the response delay of the functional unit 2 is (11-10) ×1=1, the delay of the functional unit 2 is 1ms, and the functional unit 2 needs to delay 1ms and then reply to the response message after receiving the request message of the host. And so on.
In sum, the speed adopted in OTA upgrading is determined according to the boundary speed of the functional component, so that the self-adaptive speed can be realized according to the functional component, and the OTA upgrading performance and the upgrading efficiency of the whole system are improved.
Based on the method embodiment, the embodiment of the application also provides an adaptive rate OTA device for a vehicle-mounted positioning system, wherein the vehicle-mounted positioning system comprises a host and a plurality of functional components connected with the host; referring to fig. 3, the device mainly comprises the following parts:
the starting module 310 is used for powering on and starting the vehicle-mounted positioning system, initializing an initialization rate by a host, and starting a system OTA function;
a query module 320, configured to query the boundary rate supported by each functional unit based on the initialization rate by the host;
the adaptive rate module 330 is configured to negotiate with the target functional unit through the initialization rate, switch the host and the target functional unit to a target boundary rate supported by the target functional unit, and perform OTA upgrade on the target functional unit according to the target boundary rate through the target boundary rate.
In an alternative embodiment, the apparatus further comprises:
and the rate switching module is used for negotiating the host with the target functional component through the target boundary rate after the upgrading is finished, and simultaneously switching the host and the target functional component to the initialization rate.
In an alternative embodiment, the apparatus further comprises: the sequential upgrading module is used for:
and carrying out OTA upgrading on the functional components according to the boundary rate supported by the functional components.
In an alternative embodiment, the sequential upgrading module is further configured to:
the host negotiates with the first target functional component through the initialization rate, the host and the first target functional component are switched to a first target boundary rate supported by the first target functional component, and OTA upgrading is carried out on the first target functional component according to the first target boundary rate through the first target boundary rate;
after the upgrading is finished, the host negotiates with the first target functional component through the first target boundary rate, and the host and the first target functional component are simultaneously switched to the initialization rate;
the host negotiates with the second target functional component through the initialization rate, the host and the second target functional component are both switched to a second target boundary rate supported by the second target functional component, and OTA upgrading is carried out on the second target functional component according to the second target boundary rate through the second target boundary rate;
and the like until all the functional components are subjected to OTA upgrading.
In an alternative embodiment, the apparatus further comprises: a broadcast response delay module for:
the host determines a time delay interval and sends a base address to each functional unit;
determining delay response time according to the current address, the base address and the delay interval of each functional component; the delay response time is used for replying the response message after the interval delay response time after receiving the request message of the host.
In an alternative embodiment, the broadcast response delay module is further configured to:
delay response time= (current address-base address) ×delay interval.
The implementation principle and the generated technical effects of the adaptive rate OTA device for the vehicle-mounted positioning system provided in the embodiment of the application are the same as those of the embodiment of the method, and for the sake of brief description, reference may be made to corresponding contents in the embodiment of the adaptive rate OTA method for the vehicle-mounted positioning system, where the embodiment of the adaptive rate OTA device for the vehicle-mounted positioning system is not mentioned.
The embodiment of the present application further provides an electronic device, as shown in fig. 4, which is a schematic structural diagram of the electronic device, where the electronic device 100 includes a processor 41 and a memory 40, where the memory 40 stores computer executable instructions that can be executed by the processor 41, and the processor 41 executes the computer executable instructions to implement any of the adaptive rate OTA methods for an in-vehicle positioning system.
In the embodiment shown in fig. 4, the electronic device further comprises a bus 42 and a communication interface 43, wherein the processor 41, the communication interface 43 and the memory 40 are connected by the bus 42.
The memory 40 may include a high-speed random access memory (RAM, random Access Memory), and may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The communication connection between the system network element and the at least one other network element is achieved via at least one communication interface 43 (which may be wired or wireless), which may use the internet, a wide area network, a local network, a metropolitan area network, etc. Bus 42 may be an ISA (Industry Standard Architecture ) bus, PCI (Peripheral Component Interconnect, peripheral component interconnect standard) bus, or EISA (Extended Industry Standard Architecture ) bus, among others. The bus 42 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one bi-directional arrow is shown in FIG. 4, but not only one bus or type of bus.
The processor 41 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 41 or by instructions in the form of software. The processor 41 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), and the like; but also digital signal processors (Digital Signal Processor, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor 41 reads the information in the memory, and in combination with its hardware, performs the steps of the adaptive rate OTA method for an in-vehicle positioning system of the foregoing embodiment.
The embodiment of the application further provides a computer readable storage medium, where the computer readable storage medium stores computer executable instructions, where the computer executable instructions, when being called and executed by a processor, cause the processor to implement the adaptive rate OTA method for a vehicle positioning system, and the specific implementation may refer to the foregoing method embodiment and will not be described herein.
The computer program product of the adaptive rate OTA method, apparatus and device for a vehicle positioning system provided in the embodiments of the present application includes a computer readable storage medium storing program code, where the program code includes instructions for executing the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment and will not be described herein.
The relative steps, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships that are conventionally put in use of the inventive product, are merely for convenience of description of the present application and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. An adaptive rate OTA method for a vehicle-mounted positioning system, wherein the vehicle-mounted positioning system comprises a host and a plurality of functional components connected with the host; the method comprises the following steps:
the vehicle-mounted positioning system is powered on and started, a host initializes an initialization rate, and a system OTA function is started;
the host queries the boundary rate supported by each functional unit based on the initialization rate;
the host negotiates with the target functional unit through the initialization rate, the host and the target functional unit are switched to a target boundary rate supported by the target functional unit, and OTA upgrading is carried out on the target functional unit according to the target boundary rate through the target boundary rate.
2. The adaptive rate OTA method for an in-vehicle positioning system of claim 1, further comprising:
after the upgrading is finished, the host negotiates with the target functional component through the target boundary rate, and the host and the target functional component are simultaneously switched to the initialization rate.
3. The adaptive rate OTA method for an in-vehicle positioning system of claim 1, further comprising:
and carrying out OTA upgrading on the functional components according to the boundary rate supported by the functional components in sequence.
4. The adaptive rate OTA method for an in-vehicle positioning system of claim 3 wherein sequentially OTA upgrading the functional unit according to a boundary rate supported by the functional unit comprises:
the host negotiates with a first target functional unit through the initialization rate, the host and the first target functional unit are switched to a first target boundary rate supported by the first target functional unit, and OTA upgrading is carried out on the first target functional unit according to the first target boundary rate through the first target boundary rate;
after the upgrading is finished, the host negotiates with the first target functional unit through the first target boundary rate, and the host and the first target functional unit are simultaneously switched to the initialization rate;
the host negotiates with a second target functional unit through the initialization rate, the host and the second target functional unit are both switched to a second target boundary rate supported by the second target functional unit, and OTA upgrading is carried out on the second target functional unit according to the second target boundary rate through the second target boundary rate;
and the like until all the functional components are subjected to OTA upgrading.
5. The adaptive rate OTA method for an in-vehicle positioning system of claim 1, further comprising:
the host determines a time delay interval and sends a base address to each functional unit;
determining delay response time according to the current address, the base address and the delay interval of each functional component; the delay response time is used for replying the response message after the delay response time is spaced after receiving the request message of the host.
6. The adaptive rate OTA method for an in-vehicle positioning system of claim 5 wherein determining a delay response time based on a current address of each feature, the base address, and the delay interval comprises:
delay response time= (current address-base address) ×delay interval.
7. An adaptive rate OTA device for a vehicle-mounted positioning system, wherein the vehicle-mounted positioning system comprises a host and a plurality of functional components connected with the host; the device comprises:
the starting module is used for powering on and starting the vehicle-mounted positioning system, initializing the host to an initialization rate and starting the OTA function of the system;
the inquiry module is used for inquiring the boundary rate supported by each functional component by the host computer by adopting the initialization rate;
the self-adaptive rate module is used for negotiating with the target functional unit through the initialization rate, switching the host and the target functional unit to target boundary rates supported by the target functional unit, and carrying out OTA upgrading on the target functional unit according to the target boundary rates through the target boundary rates.
8. The adaptive rate OTA apparatus for an in-vehicle positioning system of claim 7, wherein the apparatus further comprises:
and the rate switching module is used for negotiating the host with the target functional component through the target boundary rate after the upgrading is finished, and simultaneously switching the host and the target functional component to the initialization rate.
9. An electronic device comprising a processor and a memory, the memory storing computer-executable instructions executable by the processor to implement the adaptive rate OTA method for an in-vehicle positioning system of any one of claims 1 to 7.
10. A computer-readable storage medium storing computer-executable instructions that, when invoked and executed by a processor, cause the processor to implement the adaptive rate OTA method for an in-vehicle positioning system of any one of claims 1 to 7.
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| CN202311791550.5A CN117762459A (en) | 2023-12-22 | 2023-12-22 | Adaptive rate OTA method, device and equipment for vehicle-mounted positioning system |
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| CN202311791550.5A CN117762459A (en) | 2023-12-22 | 2023-12-22 | Adaptive rate OTA method, device and equipment for vehicle-mounted positioning system |
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