Pedestrian warning indicator system and automobile

Abstract

The utility model discloses a pedestrian warning indicator system and an automobile, and relates to the technical field of automobiles, the pedestrian warning indicator system comprises a warning logic processing unit which is electrically connected with a vehicle speed monitoring unit and a vehicle-mounted radar of the automobile and is used for receiving vehicle speed information monitored by the vehicle speed monitoring unit and obstacle information monitored by the vehicle-mounted radar; a warning instruction is sent according to the vehicle speed information and the obstacle information; the digital signal processing unit and the power amplification unit are arranged in an automobile machine of the automobile and electrically connected with each other, and the digital signal processing unit is electrically connected with the warning logic processing unit and used for receiving the warning instruction and sending a first warning signal to the power amplification unit; the pedestrian warning loudspeaker is electrically connected with the power amplification unit and is used for receiving the second warning signal amplified by the power amplification unit and sending out warning sound; the problems that an existing pedestrian warning device system is single in function and multiple in control wiring are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and more specifically, relates to a pedestrian warning device system and an automobile. Background Art

[0002] Traditional gasoline-powered cars have complex intake and exhaust systems, and they make a lot of noise during driving, which can be heard by pedestrians around the car and can serve as a warning. Pure electric cars themselves have very little noise. In order to warn pedestrians, electric cars are equipped with pedestrian warning devices. Traditional pedestrian warning devices are connected to the vehicle controller of the car. When the car is at low speed, it can emit a warning sound to form a pedestrian warning effect. Not only is the function single, but in addition to the need to connect the positive and negative power lines, it also requires the connection of other signal lines such as IG, CANH, CANL, etc., and requires more control wiring. Utility Model Content

[0003] The utility model aims to provide a pedestrian warning system and a car in view of the deficiencies in the prior art, so as to solve the problems of the existing pedestrian warning system having a single function and a large number of control lines.

[0004] In order to achieve the above object, the utility model provides a pedestrian warning system, which includes:

[0005] a warning logic processing unit, electrically connected to a vehicle speed monitoring unit and a vehicle-mounted radar of the vehicle, for receiving vehicle speed information monitored by the vehicle speed monitoring unit and obstacle information monitored by the vehicle-mounted radar, and issuing a warning instruction according to the vehicle speed information and the obstacle information;

[0006] A digital signal processing unit and a power amplification unit are arranged in a vehicle computer of the vehicle and are electrically connected to each other, wherein the digital signal processing unit is electrically connected to the warning logic processing unit and is used to receive the warning instruction and send a first warning signal to the power amplification unit;

[0007] The pedestrian warning speaker is electrically connected to the power amplifier unit and is used to receive the second warning signal amplified by the power amplifier unit and emit a warning sound.

[0008] Optionally, the warning logic processing unit can issue the warning instruction when the vehicle speed represented by the vehicle speed information is less than a first threshold and / or when the obstacle distance represented by the obstacle information is less than a second threshold.

[0009] Optionally, the digital signal processing unit is connected to a microphone, which is arranged in the cabin of the car. The microphone is used to receive first sound information in the cabin, and the digital signal processing unit can transmit the first sound information to the pedestrian warning speaker through the power amplification unit.

[0010] Optionally, the digital signal processing unit is electrically connected to a Bluetooth audio source of the car, a radio audio source of the car, and an external audio source of the car.

[0011] Optionally, the digital signal processing unit can transmit the second sound information of the Bluetooth audio source of the car, the radio audio source of the car and the external audio source of the car to the pedestrian warning speaker through the power amplification unit.

[0012] Optionally, the power amplification unit is electrically connected to an audio and video speaker in the cabin of the car.

[0013] Optionally, the vehicle speed monitoring unit is connected to a vehicle controller of the vehicle.

[0014] Optionally, the vehicle computer includes a vehicle-mounted audio and video module.

[0015] Optionally, the power amplification unit is connected to the pedestrian warning speaker via two audio lines.

[0016] The utility model also provides a car, which comprises the pedestrian warning device system.

[0017] The utility model provides a pedestrian warning device system and a car, which have the beneficial effects that: the warning logic processing unit of the system is not only connected to the vehicle speed monitoring unit, but also connected to the vehicle-mounted radar, and sends out warning instructions according to the vehicle speed information and the obstacle information, thereby expanding its warning function, and the warning logic processing unit is connected to the digital signal processing unit and the power amplifier unit in the car computer, and the digital signal processing unit in the car computer sends the warning instruction to the pedestrian warning speaker after power amplification, so that the pedestrian warning speaker only needs to be connected to the power amplifier unit wiring, which can simplify the control wiring.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0020] Figure 1 The figure shows a schematic structural diagram of a pedestrian warning system according to an embodiment of the utility model.

[0021] Figure 2 A circuit diagram of a power amplifying unit of a pedestrian warning system according to an embodiment of the utility model is shown.

[0022] Description of reference numerals:

[0023] 1. Warning logic processing unit; 2. Vehicle speed monitoring unit; 3. Vehicle radar; 4. Digital signal processing unit; 5. Power amplifier unit; 6. Pedestrian warning speaker; 7. Microphone; 8. Car's Bluetooth audio source; 9. Car's radio audio source; 10. Car's external audio source; 11. In-cabin audio and video speakers. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0025] like Figure 1 As shown, the utility model provides a pedestrian warning system, the system comprising:

[0026] The warning logic processing unit 1 is electrically connected to the vehicle speed monitoring unit 2 and the vehicle radar 3 of the vehicle, and is used to receive the vehicle speed information monitored by the vehicle speed monitoring unit 2 and the obstacle information monitored by the vehicle radar 3, and issue a warning instruction according to the vehicle speed information and the obstacle information;

[0027] The digital signal processing unit 4 and the power amplification unit 5 are arranged in the vehicle computer and are electrically connected to each other. The digital signal processing unit 4 is electrically connected to the warning logic processing unit 1, and is used to receive the warning instruction and send a first warning signal to the power amplification unit 5;

[0028] The pedestrian warning speaker 6 is electrically connected to the power amplifier unit 5 and is used for receiving the second warning signal amplified by the power amplifier unit 5 and issuing a warning sound.

[0029] Specifically, in order to solve the problem in the prior art that the pedestrian warning system has a single function and a large wiring space occupied by a large number of control wiring, the warning logic processing unit 1 of the pedestrian warning system provided by the utility model is not only connected to the vehicle speed monitoring unit 2, but also connected to the vehicle-mounted radar 3, and issues warning instructions according to the vehicle speed information and obstacle information, thereby expanding its warning function, and the warning logic processing unit 1 is connected to the digital signal processing unit 4 and the power amplification unit 5 in the vehicle computer. The digital signal processing unit 4 in the vehicle computer sends the warning instruction to the pedestrian warning speaker 6 after power amplification, so that the pedestrian warning speaker 6 only needs to be connected to the power amplification unit 5, which can simplify the control wiring.

[0030] Optionally, the warning logic processing unit 1, the digital signal processing unit 4 and the power amplifier unit 5 are respectively a warning logic processing chip, a digital signal processing chip and a power amplifier chip, all of which are integrated in the vehicle computer to reduce control wiring.

[0031] Optionally, the warning logic processing unit 1 can issue a warning instruction when the vehicle speed represented by the vehicle speed information is less than a first threshold and / or when the obstacle distance represented by the obstacle information is less than a second threshold.

[0032] Specifically, the first threshold can be set to 30km / h. When the vehicle speed is less than the first threshold, the car is at a low speed. At this time, the warning logic processing unit 1 issues a warning instruction, and / or the second threshold can be set to 2m. When the on-board radar 3 detects that the obstacle distance is less than the second threshold, the warning logic processing unit 1 issues a warning instruction. Such control logic is relatively common to those skilled in the art and will not be repeated here.

[0033] Optionally, the digital signal processing unit 4 is connected to a microphone 7, which is disposed in the cabin of the car. The microphone 7 is used to receive first sound information in the cabin. The digital signal processing unit 4 can transmit the first sound information to the pedestrian warning speaker 6 through the power amplification unit 5.

[0034] Specifically, through the configuration of the microphone 7, the pedestrian warning speaker 6 can not only emit a warning sound, but also play the reminder sound of the driver or passenger in the cabin, and can be used as a loudspeaker for the sound in the car to expand its reminder effect.

[0035] Optionally, the digital signal processing unit 4 is electrically connected to a Bluetooth audio source 8 of the car, a radio audio source 9 of the car, and an external audio source 10 of the car.

[0036] Specifically, the car's Bluetooth audio source 8, the car's radio audio source 9 and the car's external audio source 10 can be a mobile phone audio source connected to the car computer via a Bluetooth module, a car radio audio source and a mobile phone or player audio source connected to the car computer via a USB data cable.

[0037] Optionally, the digital signal processing unit 4 can transmit the second sound information of the car's Bluetooth audio source 8 , the car's radio audio source 9 and the car's external audio source 10 to the pedestrian warning speaker 6 through the power amplification unit 5 .

[0038] Specifically, the above three sound sources are connected to the digital signal processing unit 4, and the sounds played by these sound sources can also be amplified and played through the pedestrian warning device, thereby expanding the function of the pedestrian warning device and can be used for entertainment.

[0039] Optionally, the power amplification unit 5 is electrically connected to an audio and video speaker 11 in the cabin of the car.

[0040] Specifically, the power amplifier unit 5 in the vehicle is electrically connected to the audio and video speaker 11 in the cabin of the vehicle.

[0041] Optionally, the vehicle speed monitoring unit 2 is connected to a vehicle controller of the vehicle.

[0042] Specifically, the vehicle speed monitoring unit 2 monitors the vehicle speed in real time.

[0043] Optionally, the vehicle computer includes a vehicle audio and video module.

[0044] Specifically, the warning logic processing chip, the digital signal processing chip and the power amplifier chip can all be integrated into the vehicle audio and video module.

[0045] Optionally, the power amplification unit 5 is connected to the pedestrian warning speaker 6 via two audio lines.

[0046] Specifically, the pedestrian warning speaker 6 in the pedestrian warning device system only needs to be connected to the power amplification unit 5 through two audio lines, which simplifies its control wiring.

[0047] Furthermore, the pedestrian warning speaker 6 is connected to the power amplifier chip via a twisted pair audio cable, such as Figure 2 As shown, at the power supply end of the power amplifier chip, a 0.22uF capacitor C3 and a 2.2uF capacitor C4 are used as a de-jitter protection circuit, and a 22uF capacitor C5 and a 4.7uF capacitor C6 are used as an energy conditioning circuit for speaker driving. The digital circuit end and the analog circuit end are grounded respectively to ensure mutual isolation and circuit stability.

[0048] The utility model also provides a car, which comprises the pedestrian warning device system.

[0049] Specifically, the car can play the warning sound, the voice of the person in the car, and the sound of the above three sound sources to the outside through the pedestrian warning speaker 6.

[0050] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A pedestrian warning system, characterized in that: The system includes: a warning logic processing unit, electrically connected to a vehicle speed monitoring unit and a vehicle-mounted radar of the vehicle, for receiving vehicle speed information monitored by the vehicle speed monitoring unit and obstacle information monitored by the vehicle-mounted radar, and issuing a warning instruction according to the vehicle speed information and the obstacle information; A digital signal processing unit and a power amplification unit are arranged in a vehicle computer of the vehicle and are electrically connected to each other, wherein the digital signal processing unit is electrically connected to the warning logic processing unit and is used to receive the warning instruction and send a first warning signal to the power amplification unit; The pedestrian warning speaker is electrically connected to the power amplifier unit and is used to receive the second warning signal amplified by the power amplifier unit and emit a warning sound.

2. The pedestrian warning system according to claim 1, characterized in that: The warning logic processing unit can issue the warning instruction when the vehicle speed represented by the vehicle speed information is less than a first threshold and / or when the obstacle distance represented by the obstacle information is less than a second threshold.

3. The pedestrian warning system according to claim 1, characterized in that: The digital signal processing unit is connected to a microphone, which is arranged in the cabin of the car. The microphone is used to receive first sound information in the cabin. The digital signal processing unit can transmit the first sound information to the pedestrian warning speaker through the power amplification unit.

4. The pedestrian warning system according to claim 1, characterized in that: The digital signal processing unit is electrically connected to the Bluetooth audio source of the car, the radio audio source of the car and the external audio source of the car.

5. The pedestrian warning system according to claim 4, characterized in that: The digital signal processing unit can transmit the second sound information of the Bluetooth audio source of the car, the radio audio source of the car and the external audio source of the car to the pedestrian warning speaker through the power amplification unit.

6. The pedestrian warning device system according to claim 1, characterized in that: The power amplification unit is electrically connected to the audio and video speakers in the cabin of the car.

7. The pedestrian warning device system according to claim 1, characterized in that: The vehicle speed monitoring unit is connected to the vehicle controller of the automobile.

8. The pedestrian warning device system according to claim 1, characterized in that: The vehicle computer includes a vehicle-mounted audio and video module.

9. The pedestrian warning device system according to claim 1, characterized in that: The power amplification unit is connected to the pedestrian warning speaker via two audio lines.

10. An automobile, characterized in that: The vehicle comprises a pedestrian warning system according to any one of claims 1-9.

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