CN106564441B - Vehicle-mounted wireless intelligent control system - Google Patents
Vehicle-mounted wireless intelligent control system Download PDFInfo
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- CN106564441B CN106564441B CN201610794743.XA CN201610794743A CN106564441B CN 106564441 B CN106564441 B CN 106564441B CN 201610794743 A CN201610794743 A CN 201610794743A CN 106564441 B CN106564441 B CN 106564441B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- 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
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/102—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
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Abstract
The invention provides a vehicle-mounted wireless intelligent control system which comprises an acceleration sensor, a control unit, a signal transmitting unit, a signal receiving unit and a triggering unit, wherein the acceleration sensor is connected with the control unit; the system comprises a control unit, a signal transmitting unit, a signal receiving unit, a triggering unit, a function module and a control unit, wherein the acceleration sensor is used for acquiring vehicle acceleration information, the control unit is used for detecting data of the acceleration sensor and generating an instruction signal according to the data, the signal transmitting unit is used for transmitting the instruction signal, the signal receiving unit is arranged in the function module and used for receiving the instruction signal, and the triggering unit is connected with a working circuit of the function module and triggers the start and stop of the function module according to the instruction signal; the control unit generates two instruction signals: (1) The acceleration sensor outputs at least one data other than "0" during a period, the control unit generates a first command signal, and (2) the acceleration sensor outputs at least one data greater than a preset amplitude during a period, the control unit generates a second command signal.
Description
Technical Field
The invention relates to a vehicle-mounted control technology, in particular to a vehicle-mounted wireless intelligent control system.
Background
The vehicle-mounted intelligent system can realize various vehicle-mounted services related to navigation, safety, vehicles, life and business, and can furthest promote the use experience of users on the premise of being based on safety. Many vehicle-mounted intelligent systems in the current market are started along with the starting of the automobile, but the automobile is not in a driving state after the starting, so that the phenomenon of electric energy loss exists, and the voltage of an automobile storage battery can be reduced for a long time.
Disclosure of Invention
The invention aims to provide a vehicle-mounted wireless intelligent control system, which generates signals for controlling all functional modules through an acceleration sensor matched with a control unit.
The system comprises an acceleration sensor, a control unit, a signal transmitting unit, a signal receiving unit and a triggering unit. The system comprises a control unit, a signal transmitting unit, a signal receiving unit, a triggering unit, a function module and a control unit, wherein the acceleration sensor is used for acquiring vehicle acceleration information, the control unit is used for detecting data of the acceleration sensor and generating an instruction signal according to the data, the signal transmitting unit is used for transmitting the instruction signal, the signal receiving unit is arranged in the function module and used for receiving the instruction signal, and the triggering unit is connected with a working circuit of the function module and triggers the start and stop of the function module according to the instruction signal; the control unit generates two instruction signals: (1) The acceleration sensor outputs at least one data other than "0" during a period, the control unit generates a first command signal, and (2) the acceleration sensor outputs at least one data greater than a preset amplitude during a period, the control unit generates a second command signal. The trigger unit includes two kinds: (1) Triggering the start and stop of the corresponding functional module under the driving of the first instruction signal, and (2) triggering the start and stop of the corresponding functional module under the driving of the second instruction signal.
As an improvement of the invention, the system further comprises a switch selection unit for closing the control unit and connecting the circuit between the functional module and the automobile battery after the control unit is triggered.
Compared with the prior art, the invention has the following advantages: (1) The system adopts the acceleration sensor, has high sensitivity and can accurately judge the motion state of the automobile; (2) The functional module of the automobile in a starting but non-driving state can be closed, so that the loss is reduced; (3) The acceleration signal sent by the acceleration sensor is designed, so that different functional modules can be controlled to be opened or closed under different running states of the vehicle, and particularly, the opening of the passive safety function of the vehicle under the collision state has a good effect of protecting personnel in the vehicle; (4) The data of the acceleration sensor is connected with the terminal through a communication network, can give an alarm in a driving state of a non-self person, and has an anti-theft function.
The invention is further described below with reference to the drawings.
Drawings
Fig. 1 is a schematic diagram of the principles of the present invention.
Fig. 2 is a schematic diagram of the control unit principle.
Fig. 3 is a schematic diagram of the invention with a switch selection unit.
Detailed Description
The acceleration sensor can sense the change of acceleration force, namely, the acceleration force is the force acting on an object in the acceleration process, such as shaking, falling, rising, falling and other various movement changes, can be converted into an electric signal by the acceleration sensor, and then the programmed function can be completed after the calculation and analysis by the microprocessor. A first A/D module is arranged in the acceleration sensor, and the acquired simulation fortuitous is converted into a digital signal.
In the use of the automobile, when the automobile is running, the acceleration sensor can record the condition of XYZ axes taking the automobile as an origin when the automobile is running, wherein the data on the X axis is the left-right change of the automobile when the automobile is accelerated; the data on the Y axis is the front-back change of the automobile during acceleration; the data on the Z axis is the up-down change axis of the automobile during acceleration, and the data clearly know whether the automobile is running or stationary.
Gravity sensors, used to detect the direction of the earth, including three-way gravity meters, can be used to inaccurately detect tilt.
And the gyroscope sensor is used for measuring angular velocity, and the measured analog quantity is subjected to conditioning normalization to report offset values of three directions, namely yaw, pitch and roll angles to an upper layer.
The functional module of the invention refers to an instrument, a sensor or a module which can complete functions of shooting, charging, safety protection and the like, such as a vehicle recorder, a safety belt, a charging interface and the like. By taking the safety belt as an example, the safety belt can complete the function of locking and loosening alternation, and when collision occurs, the safety belt is not always in a tightening state, but is frequently replaced rapidly between the locking state and the loosening state, so that the damage to a driver or a passenger is prevented.
The invention discloses a vehicle-mounted wireless intelligent control system, which relates to various fields of automobiles, such as vehicle-mounted tire pressure monitoring and safety belt alarming in a passive driving safety system, as well as driving records, vehicle-mounted charging and the like. To accomplish the above functions, in conjunction with fig. 1, the present system includes the following elements: acceleration sensor, control unit, signal transmitting unit, a plurality of signal receiving unit, a plurality of trigger unit. The acceleration sensor is connected with the control unit, the control unit is connected with the signal transmitting unit, the signal transmitting unit transmits signals with each signal receiving unit, each signal receiving unit is connected with the matched triggering unit, and each triggering unit is connected with a circuit in the matched functional module.
Specifically, the acceleration sensor is used for acquiring vehicle acceleration information, including acceleration, braking, turning, severe collision and the like; the control unit is used for detecting data of the acceleration sensor and generating corresponding instruction signals according to the data of the acceleration sensor; the signal transmitting unit transmits the instruction signal generated by the control unit to each signal receiving unit; the signal receiving unit transmits the instruction signal to the triggering unit; the triggering unit opens or closes each functional module according to the instruction signal; each functional module accomplishes the above functions. The command signal includes a signal to turn on the function module and a signal to turn off the function module.
The system also comprises a gravity sensor and a gyroscope sensor, wherein the two sensors control the corresponding functional modules to work through respective detected data transmitted to the control unit.
The functional module is internally provided with a switch circuit for connecting a power supply and the functional circuit in the functional module, and the trigger unit controls the on/off of the switch circuit in the functional module according to the instruction signal
The triggering unit comprises a switching circuit which is switched on or off according to the command signal, and then the automobile power supply is connected or disconnected with the functional module.
The signal transmitting unit and the signal receiving unit according to the present invention support a near field communication function.
Referring to fig. 2, the control unit includes a trigger module, a detection module, a threshold module, a time judgment module, an instruction module, and an output module. The triggering module is used for starting the vehicle-mounted wireless intelligent control system when the power supply of the vehicle supplies power; the detection module is used for acquiring data of the acceleration sensor; the threshold module is used for storing a time stamp; the time judging module is used for calling the time marks and the sensor data, judging whether the sensor data change among the time marks and outputting signals; the instruction module generates an instruction signal for controlling the trigger unit to work according to the signal generated by the judging module; the output module sends an instruction signal.
Specifically, the triggering module obtains the triggering of the current of the vehicle-mounted storage battery when the automobile is started, and the whole vehicle-mounted wireless intelligent control system is started.
The detection module is used for acquiring real-time data of the acceleration sensor, and particularly converts an analog signal acquired by the sensor into a digital signal through an A/D module and transmits the digital signal to the detection module.
A clock generating device is arranged in the threshold module and used for generating a clock signal of a period as a reference.
The time judging module calls the clock signal and the sensor data to judge, and if the data transmitted back by the sensor is changed in different time periods, the automobile is indicated to be in running; if the data of the sensor is 0 in a certain number of clock signals, the automobile is stopped and is in a static state. For example, setting the period of the clock signal to 10s and the data transmitted by the sensor to 0 in 100 continuous period signals, the automobile is stopped: in the first 10000 periods, the data transmitted by the sensor is changed, and the judgment module outputs a signal '1'; when the 10001 st period starts, the data transmitted by the sensor is "0", and the data transmitted by the signal sensor is still "0" until the 10100 th period, after the 10100 th period signal ends, the output signal of the module is judged to be "0", and before the 10100 th period signal, the output signal of the module is judged to be still "1".
When the received signal is 1, the command module can trigger the trigger unit to work by the output signal; when the received signal is "0", the output signal may turn off the trigger unit.
For sudden acceleration, sudden braking or heavy collision, safer protection should be taken for the driver or passenger. Therefore, in order to distinguish the normal running and the emergency running of the automobile, an amplitude judging module is arranged in the control unit and is used for classifying the digital signals converted by the A/D module according to the grade, and when the amplitude is larger than a certain amplitude, the function module corresponding to the emergency running is started only when the vehicle is judged to be in the emergency condition. During normal running, the function module corresponding to the emergency running condition is not activated. When the amplitude value falls back again, the control unit regenerates the instruction signal and sends the instruction signal, and the opened functional module is closed. In the following two embodiments, the automobile data recorder is used as a functional module, but has two different functions, and the opening and closing times corresponding to the two different functions are different:
1. driving record
Functional module: a vehicle event data recorder;
opening time: when the acceleration sensor has an output signal;
closing time: and outputting signals by the acceleration sensor.
2. Automatic snapshot
Functional module: a vehicle event data recorder;
opening time: when the output signal of the acceleration sensor is larger than a certain amplitude value;
closing time: and when the output signal of the acceleration sensor is smaller than a certain amplitude value.
For convenience in setting, the command module in the control unit generates signals to be sent to each signal receiving unit, but not each signal receiving unit receiving the command signals and the trigger unit work, so that the coding module is arranged in the command module, and different signals are generated for different acceleration to be identified by different signal receiving units and trigger units. The instruction signal in the invention can be composed of two parts of an identification code and an instruction code, wherein one group of identification codes corresponds to the start and stop of one trigger unit or one group of trigger units. For example, the functions of realizing vehicle-mounted tire pressure monitoring and driving recording are started when the automobile is started, so that the functional modules are started when the acceleration is small, and the same identification code can be designed for the corresponding trigger unit to identify; the function of tightening the safety belt of a violent collision and the function of capturing the collision process only act after the automobile reaches a high speed, and the identification code is different from the identification code described before in the design process. The generation of the identification code is thus determined on the basis of the amplitude of the digital signal converted by the a/D module.
The trigger unit is a circuit with a switch, the circuit is connected with the circuit of each functional module, when receiving an instruction signal as an instruction for opening the functional module, the switch is closed to form a loop, the current of the vehicle-mounted storage battery supplies power to the circuit of the functional module, and the functional module is started to complete each function; when the received command signal is a command for closing the functional module, the switch is opened to form an open circuit, and the functional module stops working due to no working voltage.
The invention can also send data to the cloud for storage, thereby facilitating the user to call. For example, the automobile data recorder is used as a network camera, and the real-time shooting picture in the driving process can be remotely checked through the APP; for another example, various driving data such as the current automobile position, the speed, the oil consumption and the like are remotely checked in real time through the APP.
The invention also sends data to the mobile phone APP, when the automobile starts to generate acceleration, instead of the driver, the user can know that the automobile is possibly in a stolen state, and can start the camera to know the automobile position or directly position the automobile through the positioning system.
As an improvement of the present invention, in conjunction with fig. 3, the system further includes a switch selection unit, configured to close the control unit after the control unit is triggered, where the functional module is connected to the automobile battery or the functional module supplies power to the functional module from the power supply, and the functional module completes the set function. For example, when the automobile is stationary and the battery is still powered, if a user wants to charge some electronic equipment, the function of the judging module needs to be turned off, so that a switch selecting unit is added in the system, and the unit can be provided with a mechanical switch, so that the control of the user is facilitated; for another example, when the car starts, the user wants to use the recorder function, the control unit is turned off and the recorder can take an image by means of the self-powered source.
The working modes of the invention are four:
mode one: when the automobile starts to travel, the control unit detects data of the acceleration sensor, if the output data of the acceleration sensor changes all the time, the system is always in a working state and provides a vehicle-mounted power supply for the connected functional module;
mode two: when the automobile is flameout and has no electricity, the vehicle-mounted charging system stops working, and even if the functional module is connected, the voltage of the automobile storage battery is not consumed;
mode three: when the automobile is in flameout and powered on, the control unit detects data of the acceleration sensor, if the output data of the gravity vertical sensor is not changed within a certain time, the automobile is considered to be in a flameout state, the whole system stops working, and even if a load is connected, the automobile level voltage is not consumed;
mode four: when the automobile is in flameout and has electricity, the switch selection unit closes the function of the control unit, and the storage battery supplies power to the functional module needing to work.
Claims (7)
1. A vehicle-mounted wireless intelligent control system comprises an acceleration sensor, a control unit, a signal transmitting unit, a signal receiving unit and a triggering unit, wherein
The acceleration sensor is used to acquire vehicle acceleration information,
the control unit is used for detecting the data of the acceleration sensor and generating a command signal according to the data,
the signal transmitting unit is used for transmitting a command signal,
the signal receiving unit is arranged in the functional module and is used for receiving the instruction signal,
the triggering unit is connected with the working circuit of the functional module and triggers the start and stop of the functional module according to the instruction signal; it is characterized in that the method comprises the steps of,
the control unit generates two instruction signals:
(1) The acceleration sensor outputs at least one data other than 0 during a period, the control unit generates a first command signal, and
(2) The acceleration sensor outputs at least one data with a magnitude larger than a preset magnitude in a period, and the control unit generates a second instruction signal;
the trigger unit includes two kinds:
(1) Triggering the start and stop of the corresponding functional module under the drive of the first command signal, and
(2) Triggering the start and stop of the corresponding functional module under the drive of the second instruction signal;
the control unit comprises an amplitude judging module and an instruction module; wherein the method comprises the steps of
The amplitude judging module is used for calling the amplitude mark and the sensor data, judging whether the sensor data is larger than the amplitude mark and outputting a signal;
the instruction module generates a first instruction signal and a second instruction signal according to signals generated by the time judging module and the amplitude judging module;
the amplitude judging module is specifically used for classifying the vehicle acceleration according to the grade, judging that the vehicle is in an emergency condition when the vehicle acceleration is larger than a certain amplitude, starting the functional module corresponding to the emergency running condition by the control unit, and when the vehicle acceleration falls back below the amplitude again, regenerating and sending an instruction signal by the control unit, and closing the functional module corresponding to the emergency running condition;
the instruction module comprises a coding module, wherein the coding module is used for generating different instruction signals for different accelerations so as to be identified by different signal receiving units and trigger units; the instruction signal comprises identification codes and instruction codes, and a group of identification codes correspond to the start and stop of a trigger unit or a group of trigger units.
2. The system of claim 1, further comprising a gravitational sensor and a gyroscopic sensor and wherein the gravitational sensor and gyroscopic sensor send detection data to the control unit.
3. The system according to claim 1 or 2, wherein the control unit further comprises a trigger module, a detection module, a threshold module, a time judgment module, an output module; wherein the method comprises the steps of
The triggering module is used for starting the system when the automobile power supply supplies power;
the detection module is used for acquiring data of the acceleration sensor;
the threshold module is used for storing the time mark and the amplitude mark;
the time judging module is used for calling the time marks and the sensor data, judging whether the acceleration sensor data among the time marks changes or not and outputting signals;
the output module sends an instruction signal.
4. The system of claim 1, wherein the triggering unit comprises a switching circuit that is turned on or off according to a command signal, and further the power supply of the vehicle is connected or disconnected from the functional module.
5. The system according to claim 1, wherein a switching circuit is provided in the functional module for connecting a power supply and the functional circuit in the functional module, and the triggering unit controls on or off of the switching circuit in the functional module according to the instruction signal.
6. A system according to claim 1 or 2, characterized in that the system further comprises a switch selection unit for switching off the control unit after the control unit has been triggered.
7. The system of claim 2, wherein data of the acceleration sensor, the gravity sensor, the gyroscopic sensor, the control unit and the functional module are uploaded and stored at the cloud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794743.XA CN106564441B (en) | 2016-08-31 | 2016-08-31 | Vehicle-mounted wireless intelligent control system |
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| CN201610794743.XA CN106564441B (en) | 2016-08-31 | 2016-08-31 | Vehicle-mounted wireless intelligent control system |
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| CN106564441A CN106564441A (en) | 2017-04-19 |
| CN106564441B true CN106564441B (en) | 2023-07-25 |
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| WO2019014754A1 (en) * | 2017-07-20 | 2019-01-24 | Les Systèmes Cyberkar | Configurable management system for a vehicle and method of use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2696880Y (en) * | 2003-09-03 | 2005-05-04 | 上海泰好电子科技有限公司 | Tyre monitoring sensor |
| JP2010128610A (en) * | 2008-11-25 | 2010-06-10 | Fujitsu Ten Ltd | Drive recorder |
| CN101722802A (en) * | 2010-01-19 | 2010-06-09 | 上海宸卓电子科技有限公司 | System and method for monitoring tire pressure of automobile |
| CN102862548B (en) * | 2012-10-23 | 2015-06-10 | 北京车网互联科技股份有限公司 | Global positioning system (GPS) vehicle anti-theft method and vehicle anti-theft device with acceleration transducer |
| CN103235721A (en) * | 2013-04-02 | 2013-08-07 | 深圳市元征科技股份有限公司 | Sleep/wake-up device and method based on acceleration sensor for vehicle-mounted electronic equipment |
| CN103386874B (en) * | 2013-08-02 | 2015-06-17 | 苏州贝昂科技有限公司 | Device and method for controlling vehicle-mounted air cleaner |
| CN105752086B (en) * | 2016-02-24 | 2019-11-12 | 珠海市磐石电子科技有限公司 | Assistance control device, driving assistance control device, and control method thereof |
| CN206510861U (en) * | 2016-08-31 | 2017-09-22 | 江苏紫米电子技术有限公司 | A kind of onboard wireless intelligence control system |
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