CN110706370A - Remote monitoring system and method for realizing dual-system mode on vehicle-mounted platform - Google Patents
Remote monitoring system and method for realizing dual-system mode on vehicle-mounted platform Download PDFInfo
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- CN110706370A CN110706370A CN201910868475.5A CN201910868475A CN110706370A CN 110706370 A CN110706370 A CN 110706370A CN 201910868475 A CN201910868475 A CN 201910868475A CN 110706370 A CN110706370 A CN 110706370A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4406—Loading of operating system
- G06F9/441—Multiboot arrangements, i.e. selecting an operating system to be loaded
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
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Abstract
The invention discloses a remote monitoring system and a method for realizing a dual-system mode on a vehicle-mounted platform, wherein the method comprises the following specific steps: (1) the single chip microcomputer acquires the vehicle body state information and uploads the information to the host controller; (2) the host controller transmits the information data to the embedded multimedia controller, and a system boot program Uboot in the embedded multimedia controller selects and starts a corresponding android operating system or linux operating system according to the state information; (3) the android operating system or the linux operating system controls the camera to start a photographing function to obtain picture information; (4) the communication module establishes signal connection with the background user and uploads the vehicle body state information to the background user. The system comprises a sensor, a single chip microcomputer, a host controller, a camera, an embedded multimedia controller and a communication module. The invention ensures that the remote monitoring starting speed of the vehicle-mounted platform is high, the energy consumption is low and the performance is safe and stable.
Description
Technical Field
The invention relates to the field of vehicle-mounted system application, in particular to a remote monitoring system and a method for realizing a dual-system mode on a vehicle-mounted platform.
Background
In a vehicle-mounted navigation entertainment system, a mainstream android system is mostly used in the prior art, the system has good user experience in the aspect of human-computer interaction, but the human-computer interaction is not required in the remote monitoring function of a vehicle, and a rapid, safe and energy-saving system is required. The android system has the fatal shortcoming in the requirement, when images and video videos around the vehicle body and state information of the vehicle body need to be extracted in a vehicle remote monitoring mode, the vehicle body does not need the functions of a plurality of peripheral modules such as Bluetooth, wifi, noise reduction and power amplification and other high-power consumption modules, and at the moment, starting of the android system is slow and high in energy consumption.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem solved by the invention is how to solve the problems of low remote monitoring starting speed and high energy consumption of a vehicle-mounted platform.
In order to solve the technical problems, the technical scheme adopted by the invention is a remote monitoring system for realizing a dual-system mode on a vehicle-mounted platform, which comprises a sensor, a single chip microcomputer, a host controller, a camera, an embedded multimedia controller and a communication module, wherein the sensor and the single chip microcomputer carry out data interaction through a CAN bus, the single chip microcomputer and the host controller carry out data interaction through GPIO (general purpose input/output) interface connection, the camera and the embedded multimedia controller respectively carry out data transmission with the host controller through an I2C bus and an SDIO (serial digital input/output) bus, the host controller carries out data transmission with the communication module through a USB (universal serial bus) interface, an android operating system and a linux operating system are arranged in the embedded multimedia controller, and the corresponding operating systems are selected to be started according to different state modes to realize the remote monitoring of the vehicle-.
The embedded multimedia controller is internally provided with an Android operating system and a linux operating system, and is divided into 8 partitions by a partition tool, wherein the partitions include a BootLoader, a boot, a recovery, a system, a cache, data, a misc and an sdcard, the BootLoader is a physical partition, and the rest are logical partitions, the BootLoader is commonly used by the Android operating system and the linux operating system, the boot and the system are used by the boot of the linux operating system and upper-layer application, and the data and the sdcard are shared by the Android operating system and the linux operating system, so that file sharing is realized. The Android operating system is integrated with GPS navigation application, voice recognition, multimedia entertainment, vehicle-mounted communication, vehicle body communication and radio application programs and supports good human-computer interaction functions. The Linux operating system comprises a kernel, a root file system, a Camera function and a network function which are developed by QT, and the functions of photographing, recording and network communication are realized.
The embedded multimedia controller also comprises a memory which is responsible for storing code data and image data; preferably, the memory model is SanDisk.
The single chip microcomputer is responsible for acquiring the state information of an engine, temperature, vehicle speed and oil quantity of the vehicle body; preferably, the singlechip adopts a V850 chip of NXP.
The sensor is responsible for detecting the state information of an engine, temperature, vehicle speed and oil mass of the vehicle body;
the host controller is responsible for controlling and realizing video image acquisition, acquiring control information of the MCU and interacting with a user; preferably, the host controller adopts an NXP i.mx6q controller, has four cores, operates at a frequency of 1.2GHz, has 1MBL2 cache, integrates FlexCAN, MLB bus, PCIExpress and SATA-2, has excellent connectivity, and integrates LVDS, MIPI display port, MIPI camera port and HDMIv1.4 port, which is an ideal platform for advanced consumer electronics, automotive and industrial multimedia applications.
The communication module is a 4G module and is responsible for communicating with a background to receive a control command from a user and upload an execution result, and preferably, the 4G module adopts Huacheng ME 9090S.
The camera is responsible for collecting images and video recordings around the vehicle body, transmitting the images and the video recordings to the host controller and controlling the images and the video recordings by inputting cvbs video screen signals; preferably, the camera adopts a tw9990 decoding chip, supports NTSC, PAL and SECAM formats, automatically detects and decodes, has two 10-bit ADCs and adjustable white balance and color gain functions, and has an output format of ITU-R601 or ITU-R656 compatible YCbCr (4: 2: 2).
The invention provides another technical scheme which is a remote monitoring method for realizing a dual-system mode on a vehicle-mounted platform, comprising the following specific steps:
(1) the single chip microcomputer acquires state information of an engine, temperature, vehicle speed and oil quantity of a vehicle body and uploads the information to the host controller;
(2) the host controller transmits the information data to the embedded multimedia controller, a system boot program Uboot in the embedded multimedia controller selects to start a corresponding operating system according to the state information, and if the operating system is in a normal mode, the android operating system is started; if the remote monitoring state is in a flameout state, starting a remote monitoring state and starting a linux operating system;
(3) the android operating system or the linux operating system controls the camera to start a photographing function to obtain picture information;
(4) the communication module establishes signal connection with the background user and uploads the vehicle body state information to the background user.
Compared with the prior art, the invention has the beneficial effects that:
(1) in a remote monitoring mode, the speed of starting the linux operating system is obviously higher than that of an android operating system, and the requirement of a user on high time requirement is met.
(2) Under the flameout state of the vehicle machine, the storage battery cannot be charged, the linux operating system only reserves a part of required functions, most of functions are removed, and the reduction of power consumption is well controlled.
(3) The linux operating system has more advantages than the android operating system in stability, and the performance is safer and more stable.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a flow chart of the method of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings, but the present invention is not limited thereto.
Fig. 1 shows a remote monitoring system for implementing dual system modes on a vehicle-mounted platform, which includes a sensor 10, a single chip microcomputer 20, a host controller 30, a camera 40, an embedded multimedia controller 50 and a communication module 60, where the sensor 10 and the single chip microcomputer 20 perform data interaction through a CAN bus, the single chip microcomputer 20 and the host controller 30 perform data interaction through a GPIO interface connection, the camera 40 and the embedded multimedia controller 50 perform data transmission with the host controller 30 through an I2C bus and an SDIO bus, respectively, the host controller 30 performs data transmission with the communication module 60 through a USB interface, an android operating system and a linux operating system are provided in the embedded multimedia controller 50, and corresponding operating systems are selectively turned on according to different status modes to implement remote monitoring of the vehicle-mounted platform.
An Android operating system and a linux operating system are arranged in the embedded multimedia controller 50, the embedded multimedia controller is divided into 8 partitions by a partition tool, the partitions comprise bootloaders, boot, recovery, system, cache, data, misc and sdcard, the bootloaders are physical partitions, the rest are logical partitions, the bootloaders are used by the Android operating system and the linux operating system together, the boot and the system are placed by the boot of the linux operating system and upper-layer applications, and the data and the sdcard are shared by the Android operating system and the linux operating system, so that file sharing is achieved. The Android operating system is integrated with GPS navigation application, voice recognition, multimedia entertainment, vehicle-mounted communication, vehicle body communication and radio application programs and supports good human-computer interaction functions. The Linux operating system comprises a kernel, a root file system, a Camera function and a network function which are developed by QT, and realizes the functions of photographing, recording and network communication.
The embedded multimedia controller 50 further includes a memory in charge of storing code data and image data; preferably, the memory model is SanDisk.
The single chip microcomputer 20 is responsible for acquiring the state information of the engine, the temperature, the vehicle speed and the oil quantity of the vehicle body; preferably, the single chip microcomputer 20 adopts a V850 chip of NXP.
The sensor 10 is responsible for detecting the state information of the engine, the temperature, the vehicle speed and the oil mass of the vehicle body;
the host controller 30 is responsible for controlling and realizing video image acquisition, acquiring control information of the singlechip 20 and interacting with a user; preferably, the host controller 30 is an NXP i.mx6q controller with four cores, operating frequency up to 1.2GHz, with 1MBL2 cache, integrating FlexCAN, MLB bus, pci express, and SATA-2, with excellent connectivity, while integrating LVDS, MIPI display ports, MIPI camera ports, and hdmiv1.4 ports is an ideal platform for advanced consumer electronics, automotive, and industrial multimedia applications.
The communication module 60 is a 4G module, and is responsible for communicating with the background, receiving a control command from a user and uploading an execution result, and preferably, the 4G module adopts hua shi ME90 9090S.
The camera 40 is responsible for collecting images and video recordings around the vehicle body and transmitting the images and video recordings to the host controller 30, and the images and video recordings are controlled by inputting cvbs video screen signals; preferably, the camera 40 uses a tw9990 decoder chip, supports NTSC, PAL, SECAM formats, auto-detects and decodes, with two 10-bit ADCs and adjustable white balance and color gain functions, and outputs in ITU-R601 or ITU-R656 compatible YCbCr (4: 2: 2).
The working principle of the invention is as follows:
when the vehicle host controller 30 is started, the state of the vehicle is detected by the single chip microcomputer 20 in the BootLoader stage, if the detected state is in a normal mode, an android operating system is started, if the detected state is in a flameout state, the linux operating system is started, the linux operating system can communicate with a background through the communication module 60, receives a control command from a user, starts a photographing function when the user needs pictures around a vehicle body, and uploads the obtained pictures to the background through the communication module 60. The user can obtain the state of the vehicle body, and other states of the vehicle body can be obtained through the control command.
Fig. 2 shows a remote monitoring method for implementing a dual system mode on a vehicle-mounted platform, which includes the following specific steps:
(1) the single chip microcomputer acquires state information of an engine, temperature, vehicle speed and oil quantity of a vehicle body and uploads the information to the host controller;
(2) the host controller transmits the information data to the embedded multimedia controller, a system boot program Uboot in the embedded multimedia controller selects to start a corresponding operating system according to the state information, and if the operating system is in a normal mode, the android operating system is started; if the remote monitoring state is in a flameout state, starting a remote monitoring state and starting a linux operating system;
(3) the android operating system or the linux operating system controls the camera to start a photographing function to obtain picture information;
(4) the communication module establishes signal connection with the background user and uploads the vehicle body state information to the background user.
Compared with the prior art, the invention has the beneficial effects that:
(1) in a remote monitoring mode, the speed of starting the linux operating system is obviously higher than that of an android operating system, and the requirement of a user on high time requirement is met.
(2) Under the flameout state of the vehicle machine, the storage battery cannot be charged, the linux operating system only reserves a part of required functions, most of functions are removed, and the reduction of power consumption is well controlled.
(3) The linux operating system has more advantages than the android operating system in stability, and the performance is safer and more stable.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.
Claims (10)
1. A remote monitoring method for realizing a dual-system mode on a vehicle-mounted platform is characterized by comprising the following specific steps:
(1) the single chip microcomputer acquires state information of an engine, temperature, vehicle speed and oil quantity of a vehicle body and uploads the information to the host controller;
(2) the host controller transmits the information data to the embedded multimedia controller, a system boot program Uboot in the embedded multimedia controller selects to start a corresponding operating system according to the state information, and if the operating system is in a normal mode, the android operating system is started; if the remote monitoring state is in a flameout state, starting a remote monitoring state and starting a linux operating system;
(3) the android operating system or the linux operating system controls the camera to start a photographing function to obtain picture information;
(4) the communication module establishes signal connection with the background user and uploads the vehicle body state information to the background user.
2. A remote monitoring system using the remote monitoring method of claim 1 for implementing dual system mode on a vehicle platform, comprising a sensor, a single chip, a host controller, a camera, an embedded multimedia controller and a communication module, the sensor and the singlechip carry out data interaction through a CAN bus, the singlechip is connected with the host controller through a GPIO interface for data interaction, the camera and the embedded multimedia controller respectively carry out data transmission with the host controller through an I2C bus and an SDIO bus, the host controller carries out data transmission with the communication module through a USB interface, it is characterized in that an android operating system and a linux operating system are arranged in the embedded multimedia controller, and selecting to start the corresponding operating system according to different state modes to realize the remote monitoring of the vehicle-mounted platform.
3. The remote monitoring system according to claim 2, wherein an Android operating system and a linux operating system are arranged in the embedded multimedia controller, and are divided into 8 partitions by a partitioning tool, wherein the partitions include BootLoader, boot, recovery, system, cache, data, misc and sdcard, the BootLoader is a physical partition, and the rest are logical partitions; the BootLoader is commonly used by an android operating system and a linux operating system, the boot and the system are placed by a boot and an upper application of the linux operating system, and the data and the sdcard are shared by the android operating system and the linux operating system to realize file sharing.
4. The remote monitoring system according to claim 3, wherein the android operating system integrates GPS navigation application, voice recognition, multimedia entertainment, vehicle communication, vehicle body communication and radio application programs and supports good human-computer interaction function; the Linux operating system comprises a kernel, a root file system, a Camera function and a network function which are developed by QT, and the functions of photographing, recording and network communication are realized.
5. The remote monitoring system according to any one of claims 2 to 4, wherein the embedded multimedia controller further comprises a memory responsible for storing code data and image data; the single chip microcomputer is responsible for acquiring the state information of an engine, temperature, vehicle speed and oil quantity of the vehicle body.
6. The remote monitoring system according to claim 5, wherein the memory model is SanDisk, and the single chip microcomputer adopts a V850 chip of NXP.
7. The remote monitoring system according to any one of claims 2 to 4, wherein the sensor is responsible for detecting the state information of an engine, temperature, vehicle speed and oil quantity of the vehicle body; the host controller is responsible for controlling and realizing video image acquisition, acquiring control information of the single chip microcomputer MCU and interacting with a user.
8. The remote monitoring system of claim 7, wherein the host controller is an NXP i.mx6q controller with four cores, operating frequency up to 1.2GHz, with 1MB L2 buffer, integrates FlexCAN, MLB bus, PCI Express, and SATA-2, has excellent connectivity, and integrates LVDS, MIPI display port, MIPI camera port, and HDMI v1.4 port.
9. The remote monitoring system according to any one of claims 2 to 4, wherein the communication module is a 4G module, and is responsible for communicating with the background to receive the control command from the user and upload the execution result; the camera is responsible for collecting images and video recordings around the vehicle body and transmitting the images and the video recordings to the host controller, and the images and the video recordings are controlled by inputting cvbs video screen signals.
10. The remote monitoring system according to claim 9, wherein the 4G module employs hua shi ME 9090S; the camera adopts a tw9990 decoding chip, supports NTSC, PAL and SECAM formats, automatically detects and decodes, has two 10-bit ADCs and adjustable white balance and color gain functions, and has an output format of ITU-R601 or ITU-R656 compatible YCbCr (4: 2: 2).
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| CN114364019A (en) * | 2021-12-27 | 2022-04-15 | 北京慧行通捷信息技术有限公司 | Vehicle positioning system |
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