CN112734992A - Automobile IHU starting control system and method - Google Patents

Automobile IHU starting control system and method Download PDF

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Publication number
CN112734992A
CN112734992A CN202011588238.2A CN202011588238A CN112734992A CN 112734992 A CN112734992 A CN 112734992A CN 202011588238 A CN202011588238 A CN 202011588238A CN 112734992 A CN112734992 A CN 112734992A
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China
Prior art keywords
key
ihu
signal
vehicle
wake
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Pending
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CN202011588238.2A
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Chinese (zh)
Inventor
黄国川
吴友盼
刘志勇
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Yibin Cowin Auto Co Ltd
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Yibin Cowin Auto Co Ltd
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Priority to CN202011588238.2A priority Critical patent/CN112734992A/en
Publication of CN112734992A publication Critical patent/CN112734992A/en
Pending legal-status Critical Current

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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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/2018—Central base unlocks or authorises unlocking
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention discloses an automobile IHU starting control system and a method, wherein the system comprises a key signal detection receiving module and a vehicle key, wherein the key signal detection receiving module is used for periodically broadcasting and searching a key signal in a communication range around a vehicle, establishing connection with the vehicle key, then processing and judging the key signal, and judging whether to output a wake-up signal to the IHU according to the processing of the key signal for waking up the IHU. The invention has the advantages that: the starting control strategy of the IHU is adjusted, and the initialization of the IHU is started immediately after the situation that the user carries the key to the automobile and the key passes verification is detected, so that the time of waiting for initialization of the IHU system by the user can be reduced, the control mode is reasonable, the hardware structure is not increased, the starting control strategy can be realized by means of hardware in the automobile, the cost is low, and the implementation is convenient.

Description

Automobile IHU starting control system and method
Technical Field
The invention relates to the field of automobile multimedia host control, in particular to an automobile IHU starting control system and method.
Background
In the development of domestic automobiles, users have higher and higher requirements on automobile entertainment. IHUs have gradually become the standard of automobiles and have also evolved towards integrating more versatile domain controllers. How to improve the IHU experience becomes an important direction for automobile development.
The Android and Linux systems currently used by IHUs are basic and integrate many local and third party applications, resulting in a long time required for the IHU to wake up from the MCU until the entire system initialization is complete (the user can manipulate the IHU). If the IHU is awakened after the user unlocks and opens the door, the user needs to wait for a long time to operate the IHU when entering the vehicle, and the user experience is affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system and a method for starting a vehicle IHU, which are used for starting a multimedia host IHU before a user enters a vehicle in a signal acquisition and verification mode, so that the waiting time of the user is reduced.
In order to achieve the purpose, the invention adopts the technical scheme that: a starting control system of an automobile IHU comprises a key signal detection receiving module and a vehicle key, wherein the key signal detection receiving module is used for periodically broadcasting and searching a key signal in a communication range around the automobile, processing and judging the key signal after establishing connection with the vehicle key, and judging whether to output a wake-up signal to the IHU according to the processing of the key signal for waking up the IHU.
The key signal detection receiving module comprises a wireless signal receiving and transmitting unit and a control unit, wherein the wireless signal receiving and transmitting unit is connected with the control unit, and the control unit is connected with the IHU in a CAN communication/Ethernet/hard wire communication mode; the wireless signal transceiving unit is used for establishing communication connection with a vehicle key in a vehicle communication range, the control unit and the vehicle key carry out key validity verification and judge whether the key is far away from the vehicle or moves towards the vehicle according to the key signal, and whether a wake-up signal is sent to the IHU or not is judged according to a validity result of the key verification and the moving-in/moving-away signal of the key signal.
The MCU of the automobile IHU is connected with the door state detection module and used for detecting the opening state of the automobile door; the MCU starts to time after receiving the initiation of the wake-up signal and finishes initialization, and if a vehicle door opening signal and/or an IHU control signal or other wake-up signals (such as CAN network wake-up signals) are not detected within a preset time threshold value for timing, the MCU controls the IHU to sleep.
The door state detection module is a vehicle-mounted door state sensor and sends the acquired vehicle door opening state signal to the CAN bus and the MCU reads the vehicle door opening signal in the CAN bus.
An automobile IHU starting control method comprises the steps of
After the vehicle is locked, the key signal detection receiving module periodically broadcasts a key finding signal to find whether a legal key exists around the vehicle;
when a user goes to a vehicle from a distance and enters a broadcast communication range, the key detection/reception module is connected with the key, and the key information is processed to judge whether the key is a legal key; if the key is a legal key and the key is judged to enter the vehicle according to the key signal, the key detection/reception module sends a wake-up signal to the IHU to wake up the IHU; the key signal is the sindhi RSSI value of the key strength, the user is judged to walk in or principle according to the verification validity result and the change of the key signal strength, and then whether a wake-up signal is sent or not is determined.
After the IHU receives the wake-up signal, the MCU of the IHU wakes up and starts initialization work.
The wake-up signal sent to the IHU is an event type signal.
And after the IHU starts to wake up, timing is started, a vehicle door opening signal and/or an interactive signal of a human-computer interaction interface of the IHU are detected within the set timing time, and if the vehicle door opening signal is not detected and an operation signal of the IHU is not detected within the set timing time, the MCU of the IHU controls the IHU to sleep.
The invention has the advantages that: the starting control strategy of the IHU is adjusted, and the initialization of the IHU is started immediately after the situation that the user carries the key to the automobile and the key passes verification is detected, so that the time of waiting for initialization of the IHU system by the user can be reduced, the control mode is reasonable, the hardware structure is not increased, the starting control strategy can be realized by means of hardware in the automobile, the cost is low, and the implementation is convenient.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a flow chart of a control method according to the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
The design of the invention aims to solve the problem of waiting time when a user can control the IHU after getting on the bus. The hardware structure of the automobile IHU starting control system comprises a key signal detection receiving module and a vehicle key, wherein the key signal detection receiving module is used for periodically broadcasting and searching a key signal in a communication range around a vehicle, processing and judging the key signal after establishing connection with the vehicle key, and judging whether to output a wake-up signal to the IHU according to the processing of the key signal for waking up the IHU.
The key signal detection receiving module comprises a wireless signal receiving and transmitting unit and a control unit, wherein the wireless signal receiving and transmitting unit is connected with the control unit, and the control unit is connected with the IHU in a CAN communication/Ethernet/hard wire communication mode; the wireless signal transceiving unit is used for establishing communication connection with a vehicle key in a vehicle communication range, the control unit and the vehicle key carry out key validity verification and judge whether the key is far away from the vehicle or moves towards the vehicle according to the key signal, and whether a wake-up signal is sent to the IHU or not is judged according to a validity result of the key verification and the moving-in/moving-away signal of the key signal.
The MCU of the automobile IHU is connected with the door state detection module and used for detecting the opening state of the automobile door; the MCU starts initialization after receiving the wake-up signal and starts timing after the initialization is completed, and if the door opening signal and/or the IHU control signal are not detected within a preset timing time threshold, the MCU controls the IHU to sleep.
The door state detection module is a vehicle-mounted door state sensor and sends the acquired vehicle door opening state signal to the CAN bus and the MCU reads the vehicle door opening signal in the CAN bus.
The hardware that this application adopted can all adopt whole car vehicle-mounted hardware to realize thereby reduce the cost, the collection and the verification of key signal and judge whether get into and move towards the vehicle or keep away from the vehicle. A vehicle-configured key system may be employed.
The hardware involved includes:
a key: PEPS/Bluetooth/RFID, etc. keys;
key detection/reception module (hereinafter, referred to as reception module for short): PEPS module/Bluetooth module/BCM module/Tbox module, etc.;
an IHU; the multimedia entertainment host comprises a human-computer interaction module and an MCU, and the human-computer interaction can adopt a touch screen, keys and the like.
A door state detection module (hereinafter, briefly described as a door module): BCM or DCU, etc., a module that detects the status of the door through hard wiring.
The main functions of each module are as follows:
a key: a carrier of user identity; the request of key finding or connection of the whole vehicle can be actively or passively received and fed back.
PEPS key: the PEPS key can passively receive a request for finding a full vehicle LF (low frequency signal) and feed back a signal of RF (high frequency signal) key information;
bluetooth key: the bluetooth key can periodically scan the signal of the key detection/reception module and establish connection with a legal (i.e. legal after connection authentication).
A receiving module: periodically broadcasting a key finding/connecting signal, receiving the key signal and judging whether the key is legal or not; the IHU is awakened. The functional module is mainly defined by the whole vehicle architecture, and may include one ECU or a plurality of ECUs.
When the key is the PEPS, the key detection/reception module periodically sends LF key finding signals, and if the RF key information signals fed back by the key are received, the key detection/reception module analyzes and judges whether the key is a legal key (the legal key refers to a key which is subjected to key matching authentication and can normally unlock the whole vehicle);
when the key is a Bluetooth key, the key detection/receiving module periodically broadcasts a paging key signal according to a Bluetooth protocol and establishes connection with the Bluetooth key.
IHU: and the function realization main body wakes up the MCU after receiving the key detection/receiving module and starts initialization work.
A door module: and detecting whether the door state is opened or closed, and then synchronously feeding back to the IHU.
The automobile IHU starting control method comprises the following steps:
after the vehicle is locked, the key signal detection receiving module periodically broadcasts a key finding/connecting signal to find whether a legal key exists around the vehicle;
when a user goes to a vehicle from a distance and enters a broadcast communication range, the key detection/reception module is connected with the key, and the key information is processed to judge whether the key is a legal key; if the key is a legal key and the key is judged to enter the vehicle according to the key signal, the key detection/reception module sends a wake-up signal to the IHU to wake up the IHU; the wake-up signal sent to the IHU is an event type signal. The key is judged to enter a certain range of the vehicle (for example, 5m away from the vehicle) according to the RSSI value of the key, and the key is judged to be strong or weak according to the RSSI value.
After the IHU receives the wake-up signal, the MCU of the IHU wakes up and starts initialization work.
And after the IHU starts to wake up, timing is started, a vehicle door opening signal and/or an interactive signal of a human-computer interaction interface of the IHU are detected within the set timing time, and if the vehicle door opening signal is not detected and an operation signal of the IHU is not detected within the set timing time, the MCU of the IHU controls the IHU to sleep. When the car door is opened or no man-machine operation signal (touch control and key) exists, the user is judged not to enter the car or not to use the IHU, the IHU is judged not to be needed, and then the IHU is put to sleep or closed.
Meanwhile, the key detection/reception module also detects a door state signal, if the door state signal is not changed all the time, the key detection/reception module sends a wake-up signal for at most 3 times (the times can be calibrated and adjusted) to wake up the IHU for 3 times, the door state is not changed all the time, and even if the key detection/reception module detects that a legal key is in a specified range, the key detection/reception module does not send a signal to wake up the IHU.
As shown in fig. 2, after the vehicle is locked, 1, the receiving module periodically broadcasts a key finding/connecting signal to find whether a legal key exists around the vehicle.
2. When the user moves to the vehicle from a distance and is away from the vehicle, the key detection/receiving module is connected with the key, and the key information is processed to judge whether the key is a legal key. If the key is not a legal key, the key detection/reception module does not send a signal to wake up the IHU, and the function is terminated, and if the key is a legal key, the key detection/reception module sends a signal to wake up the IHU (the reception module sends a wake-up signal which is an event type signal, namely does not send after sending a plurality of frames of signals)
3. After the IHU receives the wake-up signal, the MCU wakes up and starts initialization work.
4. When a user walks into the vehicle and opens the door, the IHUMCU initialization operation is performed for a period of time, even after completion. If the IHU initialization is completed, the user can operate the IHU after getting on the bus; if the IHU initialization is not complete, the user only needs to wait a short time to operate the IHU.
(assuming that the IHU initialization completion time is X seconds, and the time from the identification of a legal key of the whole vehicle to the boarding of a user is Y seconds;
if Y is larger than or equal to X, the user can operate the IHU without waiting after getting on the bus; if Y is less than X, the user can operate the IHU after waiting for X-Y seconds after getting on the bus. X-Y < X, so user experience can be improved)
5. After the IHUMCU wakes up for a period of M seconds (the time can be configured), the IHU does not have a door module door opening state signal, and the IHUMCU enters the sleep again; and if the IHU receives the door module door opening state signal within the M seconds, the IHU executes according to the normal working mode.
The application can shorten or even eliminate the waiting time of the user for controlling the IHU after getting on the bus, and improve the user experience. The method identifies the legal user through the wireless technology, wakes up the IHU in advance and initializes the IHU, judges the intention of the user, opens in advance, reduces the waiting time, improves the user experience, and automatically closes to sleep when detecting the unused state.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.

Claims (7)

1. The automobile IHU starting control system is characterized in that: the system comprises a key signal detection receiving module and a vehicle key, wherein the key signal detection receiving module is used for periodically broadcasting and searching a key signal in a communication range around the vehicle, establishing connection with the vehicle key, then processing and judging the key signal, and judging whether to output a wake-up signal to an IHU according to the processing of the key signal for waking up the IHU.
2. The IHU start-up control system of claim 1, wherein: the key signal detection receiving module comprises a wireless signal receiving and transmitting unit and a control unit, wherein the wireless signal receiving and transmitting unit is connected with the control unit, and the control unit is connected with the IHU in a CAN communication/Ethernet/hard wire communication mode; the wireless signal transceiving unit is used for establishing communication connection with a vehicle key in a vehicle communication range, the control unit and the vehicle key carry out key validity verification and judge whether the key is far away from the vehicle or moves towards the vehicle according to the key signal, and whether a wake-up signal is sent to the IHU or not is judged according to a validity result of the key verification and the moving-in/moving-away signal of the key signal.
3. The IHU start-up control system of claim 1, wherein: the MCU of the automobile IHU is connected with the door state detection module and used for detecting the opening state of the automobile door; the MCU starts to time after receiving the wake-up signal and starts to initialize, and controls the IHU to sleep if a vehicle door opening signal and/or an IHU control signal are not detected within a preset time threshold.
4. The IHU start-up control system of claim 3, wherein: the door state detection module is a vehicle-mounted door state sensor and sends the acquired vehicle door opening state signal to the CAN bus and the MCU reads the vehicle door opening signal in the CAN bus.
5. A starting control method of an automobile IHU is characterized by comprising the following steps: comprises that
After the vehicle is locked, the key signal detection receiving module periodically broadcasts a key finding/connecting signal to find whether a legal key exists around the vehicle;
when a user goes to a vehicle from a distance and enters a broadcast communication range, the key detection/reception module is connected with the key, and the key information is processed to judge whether the key is a legal key; if the key is a legal key and the key is judged to enter the vehicle according to the key signal, the key detection/reception module sends a wake-up signal to the IHU to wake up the IHU;
after the IHU receives the wake-up signal, the MCU of the IHU wakes up and starts initialization work.
6. The IHU start-up control method of claim 1, wherein: the wake-up signal sent to the IHU is an event type signal.
7. The IHU start-up control method of claim 5 or 6, wherein: and after the IHU starts to wake up, timing is started, a vehicle door opening signal and/or an interactive signal of a human-computer interaction interface of the IHU are detected within the set timing time, and if the vehicle door opening signal is not detected and an operation signal of the IHU is not detected within the set timing time, the MCU of the IHU controls the IHU to sleep.
CN202011588238.2A 2020-12-29 2020-12-29 Automobile IHU starting control system and method Pending CN112734992A (en)

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CN113715756A (en) * 2021-08-09 2021-11-30 阿尔特汽车技术股份有限公司 Vehicle equipment management method and system and corresponding vehicle
CN114064137A (en) * 2021-11-18 2022-02-18 宁波集联软件科技有限公司 Starting method and starting system of vehicle-mounted machine system of automobile

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Application publication date: 20210430