Vehicle driving warning system
By integrating detection components, early warning lights and turn indicators, combined with controller and power control module, the high-integration design of the vehicle driving warning system is realized, solving the problem of insufficient driving safety in the existing technology, and improving driving safety Sex and use satisfaction.
Patent Information
- Application Number
- CN202010421864.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2040-05-18
AI Technical Summary
The existing vehicle early warning and detection technology lacks in-depth development and wide application of systems, resulting in insufficient driving safety, especially in driving blind spots and lane change auxiliary detection.
A highly integrated vehicle driving warning system is designed, including an early warning device, a controller and a power control module. It uses detection components, early warning lights and turn indicators to detect early warning area information by transmitting and receiving signals. And the integrated management of data and power supply is achieved through the controller and power control module.
It improves driving safety, reduces installation steps, does not damage the body structure, and is suitable for different models, ensuring data accuracy and stable power supply, and enhancing the satisfaction of car owners.
Smart Images
Figure CN111497734B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of vehicle early warning, and in particular to a vehicle travel early warning system. Background Art
[0002] With the widespread popularity of private cars, more and more cars are on the road, and the complexity of the roads is becoming more and more serious. Driving safety has become an important issue.
[0003] Blind spot detection and lane change assist detection are two relatively useful early warning detection technologies used to improve road safety. Among them, blind spot detection usually uses a camera installed on the car to monitor the traffic conditions on both sides of the car, and promptly warns the driver of the car when a vehicle enters the blind spot of the rearview mirror, thereby increasing the driver's attention to avoid accidents; lane change assist detection not only monitors the traffic conditions on both sides, but also monitors the situation of vehicles coming from behind, such as the distance and relative speed between the vehicle behind and the vehicle in the same lane, to determine whether there is a risk in changing lanes, and then remind the driver.
[0004] However, there is currently a lack of systematic and in-depth development of early warning detection technology, nor has it been widely applied. Therefore, it is necessary to fully study and maximize the development and utilization of this technology in order to minimize possible driving hazards during vehicle driving. Summary of the invention
[0005] The purpose of the present invention is to provide a vehicle driving warning system which has a high degree of integration and can improve driving safety.
[0006] In order to achieve the above object, the present invention provides the following technical solutions:
[0007] A vehicle travel warning system, characterized in that it includes: a warning device, a controller and a power control module; the warning device is provided with a detection component, and a warning light and a turn indicator light electrically connected to the detection component; the detection component is used to transmit a transmission signal covering the vehicle warning area and receive a reflection signal generated based on the transmission signal, thereby detecting the warning area information; the warning light is used to output a warning signal in response to the detection result of the detection component; the turn indicator light is used to output a turn warning signal when an external turn signal is received; the controller is at least used to access and convert the vehicle power supply to power the warning device; the power control module is connected between the controller and the warning device, and is used to convert the power supply voltage output by the controller to power the warning device.
[0008] Preferably, the controller is also used to be electrically connected to the on-board diagnostic system to access power and CAN bus data for the early warning device.
[0009] Preferably, the power control module is also used to transmit the detection result of the early warning device to the controller, and directly transmit the CAN bus data transmitted by the controller to the early warning device.
[0010] Preferably, the early warning device and the controller both have a Uart interface, and the power control module is provided with a Uart conversion circuit for serial communication, which is connected to the Uart interfaces of the early warning device and the controller.
[0011] Preferably, the power control module is provided with a first voltage conversion unit, a second voltage conversion unit and a third voltage conversion unit, which are used to convert the same input voltage provided by the controller into three power supply voltages to power the early warning alarm device.
[0012] Preferably, the first voltage conversion unit is a first DC-DC conversion circuit, which is used to convert the input voltage into a first power supply voltage; the second voltage conversion unit includes a second DC-DC conversion circuit and a low-voltage difference linear regulator connected in sequence, which are used to convert the input voltage into a second power supply voltage; the third voltage conversion unit includes a low-voltage difference linear regulator, which is used to convert the input voltage into a third power supply voltage.
[0013] Preferably, the early warning device includes a shell, the detection component is a millimeter wave radar chip, the early warning light, the turn indicator light and the millimeter wave radar chip are all arranged in the shell, and the light of the early warning light and the turn indicator light can be emitted outward through the shell.
[0014] Preferably, a first light emitting area and a second light emitting area are formed on the shell to isolate the light from each other, and the light of the early warning light is transmitted from the first light emitting area, and the light of the turn signal light is transmitted from the second light emitting area.
[0015] Preferably, the millimeter wave radar chip is also used to output control instructions so that the early warning light and the turn indicator light do not light up at the same time.
[0016] Preferably, the light signals of the early warning light and the turn indicator light are represented by different colors and / or flashing frequencies.
[0017] Preferably, the early warning device is also provided with an acceleration sensor electrically connected to the millimeter wave radar chip.
[0018] Compared with the prior art, the solution of the present invention has the following advantages:
[0019] The vehicle driving warning system provided by the present invention integrates a detection component, a warning light and a turn indicator light to form a warning warning device, which is used to detect the traffic conditions in the warning area and issue a warning to remind the driver to ensure driving safety. By integrating the detection component, the warning light and the turn indicator light into one, the installation steps of the three on the vehicle body are reduced, and the vehicle body structure is not damaged. It can be applied to vehicles of different models and improve the owner's satisfaction. In addition, the power control module can convert the same voltage from the controller into three different voltages, which are used to power different devices in the warning warning device to ensure the normal operation of each component; in addition, the power control module realizes direct data transmission between the warning warning device and the controller, which ensures the accuracy of the data and further ensures the safety of the formation.
[0020] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0022] Figure 1 The present invention is a structural block diagram of a vehicle driving warning system according to an embodiment of the present invention. DETAILED DESCRIPTION
[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.
[0024] See also Figure 1 The present invention relates to a vehicle driving warning system, including a warning device 30 integrating a detection component 301, a warning warning light 302 and a turn indicator light 303, a controller 10 and a power control module 20, which realizes the integration of multiple functions, is easy to install on a vehicle body, and is conducive to its promotion and application.
[0025] Among them, the detection component 301 is used to transmit a transmission signal that can cover the vehicle warning area, and receive a reflection signal generated by the transmission signal, and identify the traffic conditions in the warning area based on this, that is, whether there is a target vehicle in the warning area, the distance between the target vehicle and the vehicle, and the relative speed and other signals, so as to output the detection results and / or alarm levels to the controller 10 for processing and outputting control instructions to drive the warning component such as a buzzer to alarm.
[0026] The early warning light 302 is electrically connected to the detection component 301, so that it can output an early warning signal of the early warning area according to the detection result of the detection component 301, so as to warn the driver and remind him to pay more attention. The early warning signal is represented by a light signal, and is preferably a red light, which can be observed by the driver from the cab of the vehicle.
[0027] The turn indicator light 303 is used to output a turn warning signal, which can be observed from outside the vehicle to remind people outside the vehicle that the vehicle is about to turn in the corresponding direction, so that they can make corresponding avoidance to avoid safety accidents. The light of the turn indicator light 303 corresponding to the turn warning signal is represented as yellow light to distinguish it from the light signal of the early warning light 302.
[0028] In other embodiments, the light signals of the early warning light 302 and the turn indicator light 303 may also be represented by other colors, or may be represented by flashing at different frequencies, or a combination of color and flashing. It is only necessary that the light signals of the two can be distinguished to facilitate relevant personnel to understand whether the current light signal belongs to a early warning signal or a turn warning signal.
[0029] The detection component 301, the early warning light 302 and the turn indicator light 303 are all housed in a shell, and the shell forms a first light-emitting area and a second light-emitting area corresponding to the early warning light 302 and the turn indicator light 303, so that the light of the early warning light 302 and the turn indicator light 303 can be transmitted from the corresponding light-emitting areas.
[0030] In one embodiment, one of the two light-emitting areas, namely the first light-emitting area and the second light-emitting area, can isolate the light of the other light-emitting area, thereby avoiding light crosstalk and preventing the driver from misinterpreting and performing wrong driving operations, thereby ensuring driving safety. It can be understood that the housing corresponds to the positions of the two light-emitting areas and is made of a light-transmitting material.
[0031] In another embodiment, only one of the warning light 302 and the turn indicator light 303 can be controlled to emit light at the same time, thereby avoiding light crosstalk.
[0032] The early warning device 30 is suitable for being detachably attached to the mirror surface of the exterior rearview mirror by means of gluing, snapping or magnetic attraction, thereby facilitating the installation of the early warning device 30 on the vehicle. By setting it on the exterior rearview mirror, the driver can observe the early warning signal from the cab, and the turn warning signal can be observed from the outside of the vehicle, thereby cleverly realizing the integration of the early warning and turn warning functions. In addition, by integrating the detection component 301, the early warning light 302 and the turn indicator light 303 into one, it is convenient to install the three on the vehicle body, which can reduce the installation steps, and there is no need to destroy the vehicle body structure. It can be applied to vehicles of different models and is conducive to improving the owner's satisfaction.
[0033] In one embodiment, the detection component 301 is a millimeter-wave radar, which is preferably a millimeter-wave radar chip with an integrated on-chip antenna, the chip integrating a plurality of transmitting antennas capable of transmitting radar signals and a receiving antenna capable of receiving reflected signals generated based on the radar signals, that is, the detection component is a millimeter-wave radar with an integrated on-chip antenna.
[0034] In another embodiment, the detection component 301 may also be replaced by an ultrasonic sensor, which monitors the traffic conditions in the warning area through ultrasonic waves to ensure driving safety.
[0035] The controller 10 is used to receive the detection results of the detection component 301 and can control the alarm components in the vehicle, such as a buzzer, to output early warning signals. The controller 10 is also used to be electrically connected to the on-board diagnostic system to access the power supply and CAN bus data for the early warning device 30. The CAN bus data includes but is not limited to the vehicle's turn signal information, steering wheel angle information, reverse gear information, and width indicator light information. The controller 10 transmits the CAN bus data to the early warning device 30 for its logical application, thereby providing early warning signals and alarm levels.
[0036] The controller 10 has a built-in power conversion circuit and a power protection circuit, which are used to connect to the on-board diagnostic system to access the on-board power supply and convert it into a voltage signal required by other devices or modules of the vehicle travel warning system.
[0037] The power control module 20 is connected between the controller 10 and the early warning device 30, and is used to convert the power supply voltage output by the controller 10 to power the early warning device 30, and to realize direct transmission of signals between the controller 10 and the early warning device 30, that is, the power control module 20 transmits the detection results of the early warning device 30 to the controller 10, and directly transmits the CAN bus data transmitted by the controller 10 to the early warning device 30.
[0038] Preferably, the early warning device 30 and the controller 10 both have a Uart interface, and the power control module 20 is provided with a Uart conversion circuit 200 for serial communication, which is connected to the Uart interfaces of the early warning device 30 and the controller 10. By setting the data communication between the early warning device 30, the power control module 20 and the controller 10 to Uart serial communication, direct transmission of CAN bus data and the detection results and alarm levels of the early warning device 30 is achieved, ensuring the accuracy of data transmission, thereby ensuring driving safety.
[0039] Preferably, the power control module 20 is provided with a first voltage conversion unit 201 , a second voltage conversion unit 202 and a third voltage conversion unit 203 , which are used to convert the same input voltage provided by the controller 10 into three power supply voltages to power the early warning alarm device 30 .
[0040] Among them, the first voltage conversion unit 201 is a first DC-DC conversion circuit, which is used to convert the input voltage into a first power supply voltage; the second voltage conversion unit 202 includes a second DC-DC conversion circuit and a low-voltage difference linear regulator connected in sequence, which are used to convert the input voltage into a second power supply voltage; the third voltage conversion unit 203 includes a low-voltage difference linear regulator, which is used to convert the input voltage into a third power supply voltage.
[0041] By configuring the power control module to be three separate voltage conversion units, the design of the power control module can be made more flexible, and the internal space of the power control module can be fully utilized, so that the size of the power control module is smaller and the cost is reduced.
[0042] In other implementations, one input voltage may be converted into three supply voltages through an integrated power chip.
[0043] In a specific application, the first power supply voltage is 1.1V, the second power supply voltage is 1.5V, and the third power supply voltage is 3.3V. Specifically, the first voltage conversion unit 201 converts the 5V voltage input by the controller 10 into a 1.1V voltage, and outputs it to the CPU, memory and digital logic module in the millimeter wave radar of the early warning device 30 to power it. The second DC-DC conversion circuit of the second voltage conversion unit 202 converts the 5V input voltage into 1.8V, and then converts it into a regulated voltage of 1.5V through a low-dropout linear regulator, which powers the functional devices such as amplifiers (Amplifiers), comparators (Comparators), oscillators (VCO), mixers (Mixers), transimpedance amplifiers (TIA) power management units (PMU) in the early warning device 30. The low-dropout linear regulator of the third voltage conversion unit 203 converts the 5V input voltage into 3.3V to power the logic I / O interface, buffer, D / A converter, phase detector, charge pump, VGA interface, CBC, LVDS, POR module of the early warning device 30 and the corresponding LEDs used as the early warning light 302 and the turn indicator light 303.
[0044] By setting up the power control module 20, the same voltage signal input through the controller 10 is converted into three different power supply voltages to supply power to different modules or components in the early warning device 30, thereby ensuring the normal operation of each module or component.
[0045] Preferably, the power control module 20 and the early warning device 30 are connected by a soft flat cable, that is, the cables connected between the early warning device 30 and the power control module 20 are packaged together, which can facilitate the connection between the early warning device 30 and the power control module 20 and avoid wiring errors.
[0046] The controller 10 also has a built-in buzzer and a driving circuit thereof, which are used to output a warning sound signal according to the detection result of the millimeter wave radar in the early warning device 30 to remind the driver.
[0047] The early warning device 30 also integrates an acceleration sensor 304 electrically connected to the millimeter-wave radar, which is used to obtain acceleration information in the central axis direction of the installation position of the early warning device 30 when the vehicle is traveling in a straight line in the calibration mode, so that the controller 10 can calculate the installation angle based on the acceleration of the vehicle in the straight-line driving direction, and perform angle compensation to ensure the coverage range of the transmitted signal, thereby ensuring the accuracy of the detection result.
[0048] It should be noted that the above-mentioned warning area includes the blind spots of the exterior rearview mirrors and the effective area involved in lane merging assistance, such as the side and rear areas of the vehicle. The radar signal covers this area mainly to detect whether there is a vehicle and the current position and speed of the vehicle, providing a reference for the vehicle to merge.
[0049] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A vehicle driving warning system, characterized in that: include: Early warning device, controller and power control module; The early warning device is provided with a detection component, and an early warning warning light and a turn indicator light which are electrically connected to the detection component; the detection component is used to transmit a transmission signal covering the vehicle early warning area and receive a reflection signal generated based on the transmission signal, thereby detecting the early warning area information; the early warning warning light is used to output an early warning warning signal in response to the detection result of the detection component; the turn indicator light is used to output a turn warning signal when receiving an external turn signal; The controller is at least used to access and convert the vehicle power supply to supply power to the early warning alarm device; The power control module is connected between the controller and the early warning device, and is used to convert the power supply voltage output by the controller to supply power to the early warning device.
2. The vehicle driving warning system according to claim 1, characterized in that: The controller is also used to be electrically connected to the on-board diagnostic system to access power and CAN bus data for the early warning device.
3. The vehicle driving warning system according to claim 2, characterized in that: The power control module is also used to transmit the detection result of the early warning device to the controller, and directly transmit the CAN bus data transmitted by the controller to the early warning device.
4. The vehicle driving warning system according to claim 3 is characterized in that the early warning device and the controller both have a Uart interface, and the power control module is provided with a Uart conversion circuit for serial communication, which is connected to the Uart interface of the early warning device and the controller.
5. The vehicle driving warning system according to claim 1, characterized in that: The power control module is used to convert the same input voltage provided by the controller into three power supply voltages to power the early warning alarm device.
6. The vehicle driving warning system according to claim 5, characterized in that: The power control module is provided with a first voltage conversion unit, a second voltage conversion unit and a third voltage conversion unit. The first voltage conversion unit is a first DC-DC conversion circuit, which is used to convert the input voltage into a first power supply voltage; the second voltage conversion unit includes a second DC-DC conversion circuit and a low voltage difference linear regulator connected in sequence, which are used to convert the input voltage into a second power supply voltage; the third voltage conversion unit includes a low voltage difference linear regulator, which is used to convert the input voltage into a third power supply voltage.
7. The vehicle driving warning system according to claim 1, characterized in that: The early warning device includes a shell, the detection component is a millimeter wave radar chip, the early warning light, the turn indicator light and the millimeter wave radar chip are all arranged in the shell, and the light of the warning signal corresponding to the early warning light and the turn indicator light can be emitted outward through the shell.
8. The vehicle driving warning system according to claim 7, characterized in that: The housing is provided with a first luminous area and a second luminous area which isolate the light from each other, and the light of the early warning light is transmitted from the first luminous area, and the light of the turn signal light is transmitted from the second luminous area.
9. The vehicle driving warning system according to claim 7, characterized in that: The millimeter wave radar chip is used to output a control instruction so that the early warning light and the turn indicator light do not light up at the same time.
10. The vehicle driving warning system according to claim 7, characterized in that: The light signals of the warning lamp and the turn indicator lamp are expressed as different colors and / or flashing frequencies.
11. The vehicle driving warning system according to claim 7, characterized in that: An acceleration sensor is also provided in the early warning device, and the acceleration sensor is electrically connected to the millimeter wave radar chip.