CN110758319A - Automobile keyless starting method and automobile - Google Patents
Automobile keyless starting method and automobile Download PDFInfo
- Publication number
- CN110758319A CN110758319A CN201910917402.0A CN201910917402A CN110758319A CN 110758319 A CN110758319 A CN 110758319A CN 201910917402 A CN201910917402 A CN 201910917402A CN 110758319 A CN110758319 A CN 110758319A
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- automobile
- owner
- vehicle
- mobile phone
- control unit
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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
- B60R25/20—Means to switch the anti-theft system on or off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/10—Communication protocols, communication systems of vehicle anti-theft devices
- B60R2325/101—Bluetooth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/20—Communication devices for vehicle anti-theft devices
- B60R2325/205—Mobile phones
Abstract
The invention relates to a keyless starting method of an automobile, which comprises the following steps: step S1: the automobile control unit obtains the position information of the automobile owner through the mobile phone positioning information of the automobile owner, whether the automobile owner is located around the automobile is judged, if yes, step S2 is executed, and if not, the automobile keeps a flameout state; step S2: the automobile control unit judges whether the automobile owner is located in the automobile or not through the traveling generator and the automobile machine, if so, step S3 is executed, and if not, the automobile keeps a flameout state; step S3: the automobile control unit acquires the data of the mobile phone gravity sensor of the automobile owner, judges whether the sitting behavior of the automobile owner occurs or not, starts the automobile if the sitting behavior of the automobile owner occurs, and keeps the automobile in a flameout state if the sitting behavior of the automobile owner does not occur. Compared with the prior art, the automobile starting method and the automobile starting device can realize the positioning of the automobile owner and whether the automobile owner is ready to start the automobile, thereby realizing the keyless starting of the automobile.
Description
Technical Field
The invention relates to the field of intelligent automobiles, in particular to an automobile keyless starting method and an automobile.
Background
The automobile keyless entry system can utilize the Bluetooth of the mobile phone to be connected with the Bluetooth of the vehicle-mounted equipment in a matching mode, so that the close-distance unlocking of the automobile door is realized. For the keyless start of the automobile, the position location is very important because of the judgment conditions related to the distance between the owner and the automobile and whether the owner is in the automobile, and the like, and generally, the bluetooth position location is judged based on the strength of the measured signal received power (RSSI), and the received power changes with the distance, and generally, the farther the distance is, the lower the signal strength is, and vice versa, and the corresponding model is as follows.
Generally, in order to save cost, a car manufacturer can select a Bluetooth module (single module) of a vehicle-mounted communication controller assembly or an infotainment host as a transmitter-receiver of a keyless system, and in this case, the Bluetooth module can only be used for distance measurement and cannot complete positioning (positioning can be completed by three points), and the vehicle cannot be started if the positioning cannot be completed, while the Bluetooth key has the meaning of replacing a traditional physical key, the traditional physical key can start the vehicle, but the Bluetooth key cannot, when the positioning cannot be realized, if the permission of the Bluetooth key to start the vehicle is given, a very large hidden danger exists, and the situation of vehicle loss caused by design defects can occur under severe conditions. The key-free starting of the automobile is urgently solved by the following steps: the method comprises the steps of accurately positioning the position of a vehicle owner, judging whether the vehicle owner is in the vehicle or not, and judging whether the vehicle owner is ready to start the vehicle or not.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a keyless starting method of an automobile and the automobile.
The purpose of the invention can be realized by the following technical scheme:
a keyless starting method of an automobile and the automobile are provided, wherein the method comprises the following steps:
step S1: the automobile control unit obtains the position information of the automobile owner through the mobile phone positioning information of the automobile owner, whether the automobile owner is located around the automobile is judged, if yes, step S2 is executed, and if not, the automobile keeps a flameout state;
step S2: the automobile control unit judges whether the automobile owner is located in the automobile or not through the traveling generator and the automobile machine, if so, step S3 is executed, and if not, the automobile keeps a flameout state;
step S3: the automobile control unit acquires the data of the mobile phone gravity sensor of the automobile owner, judges whether the sitting behavior of the automobile owner occurs or not, starts the automobile if the sitting behavior of the automobile owner occurs, and keeps the automobile in a flameout state if the sitting behavior of the automobile owner does not occur.
The distance between the surrounding fingers of the automobile is within 3m of the automobile.
The step S2 includes:
step S21: the automobile control unit judges whether the owner is in the automobile or not for the first time through the driving generator, if so, step S22 is executed, and if not, the automobile keeps a flameout state;
step S22: and the automobile control unit judges whether the automobile owner is in the automobile again through the automobile machine, if so, step S3 is executed, and if not, the automobile keeps a flameout state.
The step S21 includes:
step S211: the travelling generator emits sound waves;
step S212: the vehicle owner mobile phone receives the sound waves and calculates the distance between the vehicle owner mobile phone and the driving generator according to the intensity of the sound waves;
step S213: the automobile control unit obtains the distance between the mobile phone of the owner of the automobile and the driving generator, and judges whether the owner of the automobile is located in the automobile for the first time.
The step S22 includes:
step S221: four loudspeakers of the car machine emit sound waves with four different frequencies;
step S222: the vehicle owner mobile phone receives the sound waves with four different frequencies, and the distances between the vehicle owner mobile phone and the four loudspeakers are respectively calculated by utilizing the generation and receiving time differences of the sound waves with the four different frequencies;
step S223: the automobile control unit obtains the distance between the mobile phone of the owner of the automobile and the four loudspeakers and judges whether the owner of the automobile is located in the automobile again.
The four loudspeakers emit ultrasonic waves with four different frequencies.
The vehicle owner mobile phone is communicated with the vehicle control unit through Bluetooth.
An automobile is started by using the automobile keyless starting method.
Compared with the prior art, the invention has the following advantages:
(1) through the vehicle owner mobile phone positioning information, the traveling generator, the vehicle machine and the vehicle owner mobile phone gravity sensor data, the positioning of the vehicle owner and whether the vehicle owner is ready to start the vehicle can be achieved, and therefore the keyless starting of the vehicle is achieved.
(2) The positioning and the starting of the vehicle can be realized only by the existing device of the vehicle without additional devices.
(3) The feasibility is strong, and the cost is low.
(4) And the three layers of judgment standards can prevent the occurrence of events such as vehicle stealing and vehicle robbing.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic simulation of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
The embodiment provides a keyless starting method of an automobile and the automobile, which combine a mobile phone of an owner, an automobile machine, a traveling generator and an automobile control unit, increase judgment conditions such as mobile phone position information, mobile phone sound positioning information, mobile phone gravity acceleration information and the like, and improve fault tolerance rate and user behavior judgment accuracy rate, so as to judge whether to start the automobile more accurately.
The method judges that the owner of the vehicle is in the vehicle and has the intention to start the vehicle through the following steps.
The cell-phone need install APP, and this APP possess the authority of acquireing cell-phone self locating information, cell-phone self acceleration of gravity information, possess the authority of using the cell-phone microphone simultaneously, and can call the bluetooth communication function of cell-phone.
After the car owner mobile phone is connected with the car control unit through Bluetooth verification, the APP can perform Bluetooth communication with the car controller.
The automobile control unit is a control unit with a Bluetooth module, such as a vehicle-mounted communication controller or an infotainment host.
Step 1, the automobile control unit obtains position information of a mobile phone of an automobile owner, the automobile control unit reads self-positioning information of the mobile phone through a Bluetooth protocol, the self-positioning information of the mobile phone is obtained through a GPS positioning method and a base station positioning method, generally, the positioning precision of the mobile phone can reach 3m, if the positioning precision is smaller than 3m, the automobile owner is judged to be located around the automobile, step 2 can be carried out, and otherwise, the automobile keeps a flameout state. This location may be used as a preliminary reference.
And 2, the automobile control unit controls the driving generator to emit sound waves, the car owner mobile phone calls the mobile phone microphone to receive and judge the size of the sound waves, meanwhile, the distance between the car owner mobile phone and the driving generator is calculated, the automobile control unit obtains the distance between the car owner mobile phone and the driving generator and judges whether the car owner is located in the car or not for the first time, and if the distance is within the range of 3m, the car owner is judged to be located in the car. And (3) if the owner is judged to be in the automobile, performing the step 3, otherwise, keeping the flameout state of the automobile.
And 3, controlling the car machine by the car control unit, sequentially emitting sounds with specific frequencies by four loudspeakers in the car, calling a microphone as a receiver by the car owner mobile phone APP, and calculating the distances from the four high pitch loudspeaker assemblies to the car owner mobile phone by utilizing the time difference of sound wave transmission and reception of the four loudspeakers, so as to judge whether the car owner is in the car again, and judging that the car owner is in the car if the mobile phone is within a range of 1m from the front left loudspeaker, within a range of 2m from the front right loudspeaker, within a range of 2.5m from the rear left loudspeaker and within a range of 3m from the rear right loudspeaker. If the owner is in the vehicle, step S4 is executed, otherwise, the vehicle remains in a flameout state. The four loudspeakers can emit ultrasonic waves with different frequencies, so that acoustic pollution is avoided.
And 4, acquiring data of the mobile phone gravity sensor by the automobile control unit, transmitting the data of the mobile phone gravity sensor acquired by the App to an automobile controller through a Bluetooth protocol, judging whether the automobile owner has a sitting action or not through the change of the gravity acceleration of the mobile phone, so as to achieve the judgment of the intention of the automobile owner, judging that the automobile owner sits down if the gravity acceleration value is greater than 2G/s and the duration is greater than 0.5s, and starting the automobile, otherwise, keeping the automobile in a flameout state.
The embodiment can judge the position of the car owner and whether the car owner sits down layer by layer after the car owner enters the car through the keyless entry system, so that the judgment accuracy is improved, and then the car is started. The method provided by the embodiment only utilizes original equipment in the vehicle, does not need to additionally increase equipment, has economical efficiency and practicability, and eliminates the condition of vehicle robbery caused by inaccurate positioning.
This embodiment can provide the positioning function without adding hardware on the basis of a single bluetooth module, the cost of which is about 21RMB, and the bluetooth key solution of this method can be about 60RMB (plus wires and connectors) in addition to 3 sets of antenna assemblies required by the bluetooth module.
The embodiment also provides an automobile which is started by using the automobile keyless starting method.
Claims (8)
1. A method for keyless starting of a vehicle, the method comprising the steps of:
step S1: the automobile control unit obtains the position information of the automobile owner through the mobile phone positioning information of the automobile owner, whether the automobile owner is located around the automobile is judged, if yes, step S2 is executed, and if not, the automobile keeps a flameout state;
step S2: the automobile control unit judges whether the automobile owner is located in the automobile or not through the traveling generator and the automobile machine, if so, step S3 is executed, and if not, the automobile keeps a flameout state;
step S3: the automobile control unit acquires the data of the mobile phone gravity sensor of the automobile owner, judges whether the sitting behavior of the automobile owner occurs or not, starts the automobile if the sitting behavior of the automobile owner occurs, and keeps the automobile in a flameout state if the sitting behavior of the automobile owner does not occur.
2. A method as claimed in claim 1, wherein said vehicle is located within 3m of said vehicle.
3. The keyless start method of the vehicle according to claim 1, wherein the step S2 comprises:
step S21: the automobile control unit judges whether the owner is in the automobile or not for the first time through the driving generator, if so, step S22 is executed, and if not, the automobile keeps a flameout state;
step S22: and the automobile control unit judges whether the automobile owner is in the automobile again through the automobile machine, if so, step S3 is executed, and if not, the automobile keeps a flameout state.
4. A keyless start method of a vehicle according to claim 3 wherein the step S21 comprises:
step S211: the travelling generator emits sound waves;
step S212: the vehicle owner mobile phone receives the sound waves and calculates the distance between the vehicle owner mobile phone and the driving generator according to the intensity of the sound waves;
step S213: the automobile control unit obtains the distance between the mobile phone of the owner of the automobile and the driving generator, and judges whether the owner of the automobile is located in the automobile for the first time.
5. A keyless start method of a vehicle according to claim 3 wherein the step S22 comprises:
step S221: four loudspeakers of the car machine emit sound waves with four different frequencies;
step S222: the vehicle owner mobile phone receives the sound waves with four different frequencies, and the distances between the vehicle owner mobile phone and the four loudspeakers are respectively calculated by utilizing the generation and receiving time differences of the sound waves with the four different frequencies;
step S223: the automobile control unit obtains the distance between the mobile phone of the owner of the automobile and the four loudspeakers and judges whether the owner of the automobile is located in the automobile again.
6. A keyless start method of a vehicle according to claim 5 wherein the four speakers emit ultrasonic waves of four different frequencies.
7. The method as claimed in claim 1, wherein the vehicle owner's mobile phone communicates with the vehicle control unit via bluetooth.
8. A vehicle, characterized in that it is started using the keyless start method of the vehicle according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917402.0A CN110758319A (en) | 2019-09-26 | 2019-09-26 | Automobile keyless starting method and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917402.0A CN110758319A (en) | 2019-09-26 | 2019-09-26 | Automobile keyless starting method and automobile |
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| CN110758319A true CN110758319A (en) | 2020-02-07 |
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| CN201910917402.0A Pending CN110758319A (en) | 2019-09-26 | 2019-09-26 | Automobile keyless starting method and automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836346A (en) * | 2020-06-08 | 2020-10-27 | 浙江联控技术有限公司 | Bluetooth key positioning method, device and equipment |
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