Device and method for automatically setting mobile phone mute under high-load driving state

Abstract

The present invention provides a device for automatically setting the mobile phone to be silent when the driver is in a high-load driving state, comprising: a sensor group, a processing unit and a Bluetooth transmitting module, wherein the output end of the sensor group is connected to the processing unit, and the output end of the processing unit is connected to the Bluetooth transmitting module; the processing unit collects information detected by the sensor group, identifies the driver's high-load driving by comparing with the set load driving state, and transmits instructions to the Bluetooth transmitting module when the driver is in a high-load driving state; the Bluetooth transmitting module receives the information of the processing unit, and transmits control information to the mobile phone in real time. The present invention also provides a method for automatically setting the mobile phone to be silent when the driver is in a high-load driving state. The present invention detects and identifies the current driving state of the driver, controls the mobile phone, and sets the mobile phone to a quiet state, so as to achieve that the mobile phone does not interfere with the driver when the driver is in a high-load driving state.

Description

Technical Field

[0001] The present invention relates to the field of vehicle-mounted safety auxiliary devices, and in particular to a device and method for automatically setting a mobile phone to mute when a driver is in a high-load driving state. Background Art

[0002] As the main body of motor vehicle control, the correctness of the driver's operation will inevitably affect the safety of driving. During driving, the driver obtains traffic information around the vehicle through the eyes, ears, nose and other senses, and formulates a safe and efficient operation method based on the traffic status and driving experience. Existing studies have shown that normal drivers have limited attention, that is, the total attention of the driver when driving is certain. When external interference factors exist and the driver's attention is distracted, the driver's efficiency in obtaining traffic environment information will decrease, thus bringing hidden dangers to driving safety. In the actual driving process, a slight distraction of the driver's attention will not bring a major safety hazard to the driver's driving. However, when the driver is under high load, such as when the driver is changing lanes, overtaking, etc., the driver's attention needs to be highly concentrated. At this time, if the driver is distracted again, it may bring unpredictable disasters.

[0003] Mobile phones are a common factor that distracts drivers during driving, and existing related research or patents only automatically or manually turn off the phone when a call comes in during normal driving, without considering the important factor that drivers cannot be distracted in high-load conditions such as lane changing and overtaking. If a system can be invented that can automatically identify whether the driver is in a high-load state, and automatically set the phone to quiet mode when a call comes in under such a high-load state, it can greatly reduce the potential for accidents caused by such situations. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention provides a technologically advanced device and method for automatically muting a driver's mobile phone under high-load driving conditions, thereby improving driving safety under high-load driving conditions and reducing the occurrence of driving accidents.

[0005] The technical solution adopted by the present invention is:

[0006] A device for automatically muting a mobile phone when a driver is in a high-load driving state comprises: a sensor group, a processing unit and a Bluetooth transmitting module, wherein the output end of the sensor group is connected to the processing unit, and the output end of the processing unit is connected to the Bluetooth transmitting module; the processing unit collects information detected by the sensor group, identifies the driver's high-load driving by comparing it with the set load driving state, and transmits instructions to the Bluetooth transmitting module when the driver is in the high-load driving state; the Bluetooth transmitting module receives the information from the processing unit, and transmits control information to a mobile phone in real time.

[0007] Further,

[0008] The sensor group includes:

[0009] The steering wheel angle sensor is installed on the vehicle's steering wheel shaft to measure the driver's operation of the steering wheel angle;

[0010] The accelerator pedal travel sensor is used to obtain the driver's operation information on the accelerator pedal;

[0011] Brake pedal driving sensor, used to obtain the driver's operation information on the brake pedal;

[0012] The lane marking sensor is installed above the center of the front windshield and is used to identify lane markings and calculate the distance between the vehicle and the lane markings;

[0013] CAN485 intelligent CAN converter, used to collect turn signal light on information and vehicle speed information in the vehicle body CAN bus;

[0014] Radar sensor, used to detect the position relationship between the vehicle in front and the vehicle itself.

[0015] Furthermore, the steering wheel angle sensor is a HiTec steering wheel angle sensor, specifically a Hirain SAS; the accelerator pedal travel sensor is a Bosch pedal travel sensor, specifically a PWG12; the brake pedal travel sensor is a Bosch pedal travel sensor, specifically a PWG13; the lane marking sensor is an AWS lane marking sensor; the CAN485 intelligent CAN converter is a Zhou Ligong CANCOM-100IE intelligent converter; the radar sensor is a Delphi ESR millimeter wave radar sensor; the processing unit is a Freescale microcontroller, specifically a MC9S12XS256; the Bluetooth transmitter module is an ISSC Bluetooth transmitter module, specifically a IS1681.

[0016] According to the above content, the present invention also provides a method for automatically setting a mobile phone to mute when a driver is in a high-load driving state, comprising the following steps:

[0017] Install the sensor group, processing unit and Bluetooth transmitter module;

[0018] The sensor group collects driving data and transmits it to the processing unit;

[0019] Determine the driver's load status;

[0020] Determine whether to send control instructions to the mobile phone through the Bluetooth transmitter module according to the load status.

[0021] Furthermore, the sensor group includes a vehicle steering wheel angle sensor, an accelerator pedal travel sensor, a brake pedal travel sensor, a lane line recognition sensor, a CAN485 intelligent CAN converter and a radar sensor.

[0022] Furthermore, the installation of the sensor group, processing unit and Bluetooth transmitting module specifically includes: fixing the steering wheel angle sensor on the vehicle steering wheel shaft by bolts; fixing the accelerator pedal travel sensor above the accelerator pedal; fixing the brake pedal travel sensor above the brake pedal; installing the lane line sensor above the center of the vehicle's front windshield; installing the CAN485 intelligent CAN converter at the vehicle's OBD port with fine-groove bolts; installing the radar sensor above the vehicle's front air intake grille with fine-groove bolts and gluing, facing the front of the vehicle; fixing the processing unit with fine-groove bolts in an empty space below the vehicle's dashboard and encapsulating it in a metal box, and transmitting data with an external sensor via a data cable; the Bluetooth module and the processing unit are installed together and directly electrically connected via a data cable.

[0023] Furthermore, the determining of the driver's load state specifically includes: the processing unit initially processes the collected driving data, determines the state of the vehicle, and judges the urgency of the state.

[0024] Furthermore, the driver load state is divided into a general high load state and a severe high load state, specifically including a general high load state at a corner, a severe high load state at a corner, a general high load state of an accelerator pedal, a severe high load state of an accelerator pedal, a general high load state of a brake pedal, a severe high load state of a brake pedal, a general high load state of a lane change, a severe high load state of a lane change, a severe high load state of a traffic light, a general high load state of following a vehicle, and a severe high load state of following a vehicle.

[0025] Furthermore, the general high-load state of the corner meets one of the following conditions: a single steering wheel angle of 5°≤angle≤10° or a steering wheel angle speed of 10° / s≤angle speed≤30° / s; and the severe high-load state of the corner meets one of the following conditions: a single steering wheel angle of greater than 10° or a steering wheel angle speed greater than 30° / s.

[0026] Furthermore, the general high-load state of the accelerator pedal is that the pedal travel changes by 80% within 3 seconds, and the severe high-load state of the accelerator pedal is that the pedal travel changes by 80% within 1 second.

[0027] Furthermore, the general high-load state of the brake pedal is one of the two situations that the brake pedal stroke changes by 30% to 80% within 1 second or the brakes are braked 1 to 3 times within 10 seconds, and the severe high-load state of the brake pedal is one of the two situations that the brake pedal stroke changes by 80% within 1 second or the brakes are braked more than 3 times within 20 seconds.

[0028] Furthermore, the general high-load state of lane changing is a state in which the vehicle speed is less than or equal to 80 km / h, and the distance between the vehicle and the lane line is constantly decreasing. The severe high-load state of lane changing is a state in which the vehicle speed is greater than 80 km / h, and the distance between the vehicle and the lane line is constantly decreasing within a time window of 1.2 s.

[0029] Furthermore, the signal light severe high load state is a turn signal on state.

[0030] Furthermore, the general high-load state of following a vehicle is 1s≤following time distance≤1.5s, and the severe high-load state of following a vehicle is following time distance<1s.

[0031] The beneficial effects of the present invention are as follows: a vehicle steering wheel angle sensor, an accelerator pedal travel sensor, a brake pedal travel sensor, a lane line recognition sensor, turn signal light information and a radar sensor are used, and vehicle steering parameters, accelerator pedal travel parameters, brake pedal travel and braking frequency parameters, the distance between the vehicle and the lane line, vehicle turn signal information and following distance are selected as a basis for judging the driver's high-load driving state, the driver's current driving state is identified, and when the driver is in a high-load driving state, a command is sent to an APP pre-installed in a mobile phone through a Bluetooth transmission module, and the mobile phone is set to a quiet state, so as to achieve that the mobile phone does not interfere with the driver when the driver is in a high-load driving state. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A structural diagram of a device for automatically muting a mobile phone under a high-load driving state provided by the present invention;

[0033] Figure 2 A schematic diagram of the definition of the driver's load state during the steering operation proposed by the present invention;

[0034] Figure 3 A schematic diagram of the definition of the driver's load state under the accelerator pedal operation proposed by the present invention;

[0035] Figure 4A schematic diagram of the definition of the driver's load state under the brake pedal operation proposed by the present invention;

[0036] Figure 5 A schematic diagram of the definition of the driver's load state during the lane change operation proposed by the present invention;

[0037] Figure 6 A schematic diagram of the driver's load state definition when the turn signal lamp is turned on proposed by the present invention;

[0038] Figure 7 This is a schematic diagram of the definition of the driver's load state under the vehicle following behavior proposed by the present invention. DETAILED DESCRIPTION

[0039] The present invention is described in detail below with reference to the accompanying drawings.

[0040] The basic principle of the present invention is to obtain the driver's control information of the vehicle and the relative state relationship between the vehicle and the traffic environment in the current state by using a series of sensors and data, and identify the driving state of the vehicle according to certain identification rules, so as to identify whether the driver is in a high-load state. If the driver is in a high-load state, the system sends a command to the APP pre-installed in the driver's mobile phone through the Bluetooth transmitter module, setting the mobile phone to a quiet state without sound and vibration, thereby ensuring driving safety.

[0041] See also Figure 1 , which is a structural diagram of a device for automatically muting a mobile phone under a high-load driving state provided by the present invention.

[0042] like Figure 1 As shown, a device for automatically muting a mobile phone when the driver is in a high-load driving state is characterized in that it includes: a sensor group, a processing unit and a Bluetooth transmitting module, the output end of the sensor group is connected to the processing unit, and the output end of the processing unit is connected to the Bluetooth transmitting module; the processing unit collects information detected by the sensor group, identifies the driver's high-load driving by matching the set load driving state, and transmits instructions to the Bluetooth transmitting module when the driver is in a high-load driving state; the Bluetooth transmitting module receives the information from the processing unit, and transmits control information to the mobile phone in real time.

[0043] Furthermore, the sensor group includes:

[0044] The steering wheel angle sensor is installed on the vehicle's steering wheel shaft to measure the driver's operation of the steering wheel angle;

[0045] The accelerator pedal travel sensor is used to obtain the driver's operation information on the accelerator pedal;

[0046] Brake pedal driving sensor, used to obtain the driver's operation information on the brake pedal;

[0047] The lane marking sensor is installed above the center of the front windshield and is used to identify lane markings and calculate the distance between the vehicle and the lane markings;

[0048] CAN485 intelligent CAN converter, used to collect turn signal light on information and vehicle speed information in the vehicle body CAN bus;

[0049] Radar sensor, used to detect the position relationship between the vehicle in front and the vehicle itself.

[0050] In an embodiment of the present invention, a sensor group is arranged on the vehicle to respectively identify the steering wheel angle and corner speed, acceleration urgency, braking urgency and braking frequency, vehicle lane changing status, whether to turn, and vehicle following status, and is connected to a processing unit via a CAN bus. After the processing unit identifies the vehicle motion status, a command is sent to an APP pre-installed in a mobile phone via a Bluetooth module to set the sound and vibration of the mobile phone.

[0051] The above sensors are used to identify six possible high-load driving states of the driver, namely, steering wheel angle and corner speed, acceleration urgency, braking urgency and braking frequency, vehicle lane change status, whether to turn, and vehicle following status. Each possible high-load driving state of the driver is divided into two levels: general load and severe load according to the urgency of the load. When the system identifies that the driver has two or more general high-load states, or one or more severe high-load states, it is determined that the driver is in a high-load driving state.

[0052] Further:

[0053] The steering wheel angle sensor is a HiTec brand steering wheel angle sensor, and the specific model is Hirain SAS;

[0054] The accelerator pedal travel sensor is a Bosch pedal travel sensor, specifically a PWG12;

[0055] The brake pedal travel sensor is a Bosch pedal travel sensor, specifically model PWG13;

[0056] The lane marking sensor is an AWS lane marking sensor;

[0057] The CAN485 intelligent CAN converter is the Zhou Ligong CANCOM-100IE intelligent converter;

[0058] The radar sensor is a Delphi ESR millimeter wave radar sensor;

[0059] The processing unit is a Freescale single-chip microcomputer, specifically MC9S12XS256;

[0060] The Bluetooth transmitter module is an ISSC brand Bluetooth transmitter module, and the specific model is IS1681.

[0061] According to the above content, the present invention also provides a method for automatically setting a mobile phone to mute when a driver is in a high-load driving state, comprising the following steps:

[0062] Install the sensor group, processing unit and Bluetooth transmitter module;

[0063] The sensor group collects driving data and transmits it to the processing unit;

[0064] Determine the driver's load status;

[0065] Determine whether to send control instructions to the mobile phone through the Bluetooth transmitter module according to the load status.

[0066] Furthermore, the sensor group includes a vehicle steering wheel angle sensor, an accelerator pedal travel sensor, a brake pedal travel sensor, a lane line recognition sensor, a CAN485 intelligent CAN converter and a radar sensor.

[0067] Furthermore, the installation of the sensor group, processing unit and Bluetooth transmission module specifically includes: fixing the steering wheel angle sensor on the vehicle steering wheel shaft by bolts, and the data output end is directly electrically connected to the processing unit for collecting vehicle steering wheel angle data.

[0068] The accelerator pedal travel sensor is fixedly installed above the accelerator pedal and is used to measure the accelerator pedal travel and travel changes.

[0069] The brake pedal travel sensor is fixedly installed above the brake pedal and is used to measure the brake pedal travel and travel changes.

[0070] The lane line sensor is installed above the center of the vehicle's front windshield to obtain road image information and identify the distance between the vehicle and the lane line.

[0071] The CAN485 intelligent CAN converter is installed near the vehicle's OBD port using fine-thread bolts to obtain the vehicle speed and turn signal light on information on the vehicle's own CAN bus.

[0072] The radar sensor is installed above the front grille of the vehicle, facing the front of the vehicle. It is installed using fine-grain bolts and adhesives to obtain distance data between the vehicle in front of the vehicle and the vehicle itself.

[0073] The processing unit is installed in the vacant space below the vehicle dashboard and is fixed with fine-thread bolts. The processing unit is packaged in a metal box and transmits data with external sensors via data cables.

[0074] The Bluetooth module and the processor are installed together and are directly electrically connected via a data line, and are used to send instructions to the outside world to set the mobile phone to a quiet state.

[0075] In the embodiment of the present invention, the vehicle steering wheel angle sensor, accelerator pedal travel sensor, brake pedal travel sensor, lane line recognition sensor, turn signal light information, radar sensor are used to collect parameters such as the vehicle steering angle and angular velocity, accelerator pedal travel change rate, brake pedal travel change rate and braking frequency, change in the distance between the vehicle and the lane line, turn signal signal, and the following time distance between the vehicle and the vehicle in front.

[0076] The steering wheel angle data can reflect the driver's operation information on the steering wheel. The steering wheel rotation angle and speed can reflect the driver's emergency situation for vehicle operation; the change in accelerator pedal travel reflects the driver's acceleration characteristics. If the driver steps on the accelerator pedal suddenly or releases the accelerator pedal urgently, it can reflect the current state of the vehicle, thereby reflecting the driver's load state; the change in brake pedal travel or braking frequency can also reflect the vehicle's movement state. Emergency braking is undoubtedly a potential danger to the vehicle. Excessive braking frequency can also reflect the driving environment of the vehicle. In these two states, the driver is in a high-load state; the change in the distance between the vehicle and the lane line can reflect the vehicle's lane changing behavior. When the vehicle changes lanes, The driver needs to constantly observe the rearview mirror to ensure the safety of lane changing, so the distance between the vehicle and the lane line can also reflect the driver's load status; the turn signal on information more directly reflects the driver's steering operation. During the steering operation, the driver needs to obtain more traffic information to ensure safety, so this process is also a high-load state; the radar sensor can detect the relative motion state data between the vehicle and the vehicle in front of the vehicle, including distance, relative speed and angle. The following distance of the vehicle can be obtained based on the detected data. The following distance can well reflect the safety of vehicle following. In the dangerous following state, the driver needs to concentrate on driving, and this state is also a high-load state.

[0077] Furthermore, the determining of the driver's load state specifically includes: the processing unit initially processes the collected driving data, determines the state of the vehicle, and judges the urgency of the state.

[0078] In the embodiment of the present invention, each sensor collects the driver's vehicle operation information and the relative state relationship parameters between the vehicle and the traffic environment. First, the collected parameters need to be processed to determine the state of the vehicle and the urgency of various states.

[0079] Furthermore, the driver load state is divided into a general high load state and a severe high load state, specifically including a general high load state at a corner, a severe high load state at a corner, a general high load state of an accelerator pedal, a severe high load state of an accelerator pedal, a general high load state of a brake pedal, a severe high load state of a brake pedal, a general high load state of a lane change, a severe high load state of a lane change, a severe high load state of a traffic light, a general high load state of following a vehicle, and a severe high load state of following a vehicle.

[0080] Furthermore, the general high-load state of the corner meets one of the following conditions: a single steering wheel angle of 5°≤angle≤10° or a steering wheel angle speed of 10° / s≤angle speed≤30° / s; and the severe high-load state of the corner meets one of the following conditions: a single steering wheel angle of greater than 10° or a steering wheel angle speed greater than 30° / s.

[0081] See also Figure 2 , which is a schematic diagram of the definition of the driver's load state during the steering operation proposed by the present invention.

[0082] The steering wheel angle sensor detects the steering wheel's rotation angle. When the single turning angle exceeds ±10°, it is determined that the driver is performing a steering operation, and this state is a severe high-load state. When the single turning angle is between ±5° and ±10°, it is determined that the driver may need to turn at this stage and the operator is performing lane keeping fine-tuning. This state is defined as a general high-load state. At the same time, the driver's sudden steering is also a high-load state. It is defined that the driver's steering wheel angle speed is greater than 30° / s as a severe high-load state, and between ±10° / s and ±30° / s as a general high-load state.

[0083] Furthermore, the general high-load state of the accelerator pedal is that the pedal travel changes by 80% within 3 seconds, and the severe high-load state of the accelerator pedal is that the pedal travel changes by 80% within 1 second.

[0084] See also Figure 3 This is a schematic diagram of the definition of the driver's load state under accelerator pedal operation proposed by the present invention.

[0085] If the driver presses the accelerator pedal suddenly, it can reflect that the driver wants to leave the current location as soon as possible, or the road ahead is empty, and the driver wants to speed up. In this case, the driver needs to maintain a high degree of concentration due to the rapid increase in speed; if the driver releases the accelerator pedal urgently, it reflects that there may be a dangerous state ahead of the vehicle, which also requires the driver to concentrate highly. Therefore, it is defined that the driver presses the accelerator pedal suddenly or releases the accelerator pedal suddenly as a serious high-load state, and the sudden stepping and sudden release of the accelerator pedal are set to change the pedal travel by 80% within 1s. When the driver releases the accelerator pedal from the acceleration state, it can reflect that there is a potential danger ahead of the vehicle. There is also a certain degree of danger in this state, and the driver is under a certain load. Therefore, it is defined that the driver slowly releases the accelerator pedal as a general high-load state, and the slow release of the accelerator pedal is set to change the pedal travel by 80% within 3s.

[0086] Furthermore, the general high-load state of the brake pedal is one of the two situations that the brake pedal stroke changes by 30% to 80% within 1 second or the brakes are braked 1 to 3 times within 10 seconds, and the severe high-load state of the brake pedal is one of the two situations that the brake pedal stroke changes by 80% within 1 second or the brakes are braked more than 3 times within 20 seconds.

[0087] Figure 4 This is a schematic diagram of the definition of the driver's load state under brake pedal operation proposed by the present invention.

[0088] The driver's braking of the vehicle can reflect the dangerous situation in front of the vehicle. During the braking process, the driver needs to obtain real-time information about the traffic environment ahead and judge the positional relationship between the vehicle and the obstacle ahead. During this process, the driver needs to concentrate highly, which is a high-load state. The braking frequency also has a similar pattern. Therefore, emergency braking by the driver or braking more than 3 times within 20 seconds is defined as a severe high-load state, and emergency braking is set as a change of 80% in the brake pedal stroke within 1 second; general braking by the driver or braking between 1 and 3 times within 10 seconds is defined as a general high-load state, and general braking is set as a change of 30% to 80% in the brake pedal stroke within 1 second.

[0089] Furthermore, the general high-load state of lane changing is a state in which the vehicle speed is less than or equal to 80 km / h, and the distance between the vehicle and the lane line is constantly decreasing. The severe high-load state of lane changing is a state in which the vehicle speed is greater than 80 km / h, and the distance between the vehicle and the lane line is constantly decreasing within a time window of 1.2 s.

[0090] Figure 5 This is a schematic diagram of the definition of the driver's load state during the lane changing operation proposed by the present invention.

[0091] The distance between the vehicle and the lane line can reflect the lane-changing behavior of the vehicle. At high speeds, even a small operation input will have a significant impact on the vehicle's operating state. It can be seen that the lane-changing state is more dangerous, and the driver needs to maintain a high degree of concentration. And the risk of lane changing is greater than at low speeds. In this embodiment of the present invention, 1.2s is taken as the time window for lane-changing behavior identification. Therefore, in the 1.2s time window, when the vehicle speed is greater than 80km / h and the distance between the vehicle and the lane line is constantly decreasing, it is defined as a severe high-load state; when the vehicle speed is less than or equal to 80km / h and the distance between the vehicle and the lane line is constantly decreasing, it is defined as a general high-load state.

[0092] Furthermore, the signal light severe high load state is a turn signal on state.

[0093] Figure 6 This is a schematic diagram of the definition of the driver's load state when the turn signal is turned on proposed by the present invention.

[0094] The turn signal can directly reflect the driver's steering operation. The turn signal on state is defined as a severe high-load state.

[0095] Furthermore, the general high-load state of following a vehicle is 1s≤following time distance≤1.5s, and the severe high-load state of following a vehicle is following time distance<1s.

[0096] Figure 7 This is a schematic diagram of the definition of the driver's load state under the vehicle following behavior proposed by the present invention.

[0097] The following behavior is reflected by the following distance parameter. The distance between the vehicle and the vehicle being followed is obtained by using the radar sensor, and combined with the speed of the vehicle, the following distance is obtained by dividing the distance between the two vehicles by the speed of the vehicle. In the embodiment of the present invention, when the following distance is less than 1s, it is defined as a severe high-load state; when the following distance is between 1.5s and 1s, it is defined as a general high-load state.

[0098] According to the above-mentioned driver load state classification method, the load urgency of the driver under various operating behaviors is determined. The sensor group collects information and processes and analyzes it through the processing unit to determine the load state corresponding to the sensor group. When it is identified that the driver has two or more general high-load states, or one or more serious high-load states, it is determined that the driver is in a high-load driving state.

[0099] When the processing unit determines that the driver is in a high-load driving state, the processing unit transmits instructions to the Bluetooth transmitting module, causing the Bluetooth transmitting module to send a control instruction to the APP pre-installed in the mobile phone to set the mobile phone to a silent and non-vibrating quiet state, so as to ensure that the mobile phone does not interfere with the driver when the driver is in a high-load driving state.

[0100] The method for automatically muting a mobile phone under a high-load driving state provided by the present invention adopts a vehicle steering wheel angle sensor, an accelerator pedal travel sensor, a brake pedal travel sensor, a lane line recognition sensor, turn signal light information and a radar sensor, selects vehicle steering parameters, accelerator pedal travel parameters, brake pedal travel and braking frequency parameters, the distance between the vehicle and the lane line, vehicle turn signal information and following distance as a basis for judging the driver's high-load driving state, identifies the driver's current driving state, and when the driver is in a high-load driving state, sends a command to an APP pre-installed in the mobile phone through a Bluetooth transmission module, sets the mobile phone to a quiet state, so as to achieve that the mobile phone does not interfere with the driver when the driver is in a high-load driving state.

[0101] The present invention is described in detail above, but the present invention is not limited to the above-mentioned embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A method for automatically muting a mobile phone when a driver is in a high-load driving state, based on a device for automatically muting a mobile phone when a driver is in a high-load driving state, the device comprising: A sensor group, a processing unit and a Bluetooth transmitting module, wherein the output end of the sensor group is connected to the processing unit, and the output end of the processing unit is connected to the Bluetooth transmitting module; The processing unit collects information detected by the sensor group, identifies the driver's high-load driving by comparing it with the set load driving state, and transmits instructions to the Bluetooth transmission module when the driver is in the high-load driving state; The Bluetooth transmitting module receives the information from the processing unit and transmits control information to the mobile phone in real time; The sensor group includes: The steering wheel angle sensor is installed on the vehicle's steering wheel shaft to measure the driver's operation of the steering wheel angle; The accelerator pedal travel sensor is used to obtain the driver's operation information on the accelerator pedal; Brake pedal travel sensor, used to obtain the driver's operation information on the brake pedal; The lane marking sensor is installed above the center of the front windshield and is used to identify lane markings and calculate the distance between the vehicle and the lane markings; CAN485 intelligent CAN converter, used to collect turn signal light on information and vehicle speed information in the vehicle body CAN bus; Radar sensor, used to detect the position relationship between the vehicle in front and the vehicle itself; The steering wheel angle sensor is a HiTec steering wheel angle sensor, specifically a Hirain SAS; the accelerator pedal travel sensor is a Bosch pedal travel sensor, specifically a PWG12; the brake pedal travel sensor is a Bosch pedal travel sensor, specifically a PWG13; the lane marking sensor is an AWS lane marking sensor; the CAN485 intelligent CAN converter is a Zhou Ligong CANCOM-100IE intelligent converter; the radar sensor is a Delphi ESR millimeter wave radar sensor; the processing unit is a Freescale microcontroller, specifically a MC9S12XS256; the Bluetooth transmitter module is an ISSC Bluetooth transmitter module, specifically a IS1681; The method of the device for automatically setting the mobile phone to mute under the high-load driving state of the driver comprises the following steps: Install the sensor group, processing unit and Bluetooth transmitter module; The sensor group collects driving data and transmits it to the processing unit; Determine the driver's load status; Determine whether to send a control instruction to the mobile phone via the Bluetooth transmitter module according to the load status; The installation of the sensor group, the processing unit and the Bluetooth transmitting module specifically includes: fixing the steering wheel angle sensor on the steering wheel shaft of the vehicle by bolts; fixing the accelerator pedal travel sensor above the accelerator pedal; fixing the brake pedal travel sensor above the brake pedal; installing the lane line sensor above the center of the front windshield of the vehicle; installing the CAN485 intelligent CAN converter at the OBD port of the vehicle by fine-groove bolts; installing the radar sensor above the front air intake grille of the vehicle by fine-groove bolts and gluing, facing the front of the vehicle; fixing the processing unit at an empty space below the instrument panel of the vehicle by fine-groove bolts and encapsulating it with a metal box, and transmitting data with an external sensor through a data line; installing the Bluetooth module and the processing unit together, and directly electrically connecting them through a data line; The determining of the driver load state specifically includes: the processing unit initially processes the collected driving data, determines the state of the vehicle, and judges the urgency of the state.

2. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 1, characterized in that: The driver load state is divided into a general high load state and a severe high load state, specifically including a general high load state at a corner, a severe high load state at a corner, a general high load state at an accelerator pedal, a severe high load state at an accelerator pedal, a general high load state at a brake pedal, a severe high load state at a brake pedal, a general high load state at a lane change, a severe high load state at a lane change, a severe high load state at a traffic light, a general high load state at a following vehicle, and a severe high load state at a following vehicle.

3. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 2, characterized in that: The general high-load state of the turning angle satisfies one of the following conditions: a single steering wheel turning angle of 5°≤turning angle≤10° or a steering wheel turning angle speed of 10° / s≤turning angle speed≤30° / s; the severe high-load state of the turning angle satisfies one of the following conditions: a single steering wheel turning angle of greater than 10° or a steering wheel turning angle speed of greater than 30° / s.

4. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 2, characterized in that: The general high-load state of the accelerator pedal is that the pedal travel changes by 80% within 3 seconds, and the severe high-load state of the accelerator pedal is that the pedal travel changes by 80% within 1 second.

5. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 3, characterized in that: The general high-load state of the brake pedal is one of the two situations: the brake pedal stroke changes by 30% to 80% within 1 second or the brakes are braked 1 to 3 times within 10 seconds. The severe high-load state of the brake pedal is one of the two situations: the brake pedal stroke changes by 80% within 1 second or the brakes are braked more than 3 times within 20 seconds.

6. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 3, characterized in that: The general high-load state of lane changing is a state where the vehicle speed is less than or equal to 80 km / h and the distance between the vehicle and the lane line is constantly decreasing. The severe high-load state of lane changing is a state where the vehicle speed is greater than 80 km / h and the distance between the vehicle and the lane line is constantly decreasing within a time window of 1.2 s.

7. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 3, characterized in that: The signal light severe high load state is a turn signal on state.

8. The method for automatically muting a driver's mobile phone under high-load driving conditions according to claim 3, characterized in that: The general high-load state of following a vehicle is 1s≤following distance≤1.5s, and the severe high-load state of following a vehicle is following distance<1s.

Images