CN202448834U - Safe-running reminding device for automobile - Google Patents

Abstract

The utility model provides an automobile safety driving reminding device, which belongs to the technical field of automobiles. The utility model solves the problem that the existing warning device for safe driving cannot remind unexpected situations around the vehicle body. The car safety driving reminder device includes a GPS navigator, which performs voice reminders of driving routes, traffic signs and line speed limit information according to the built-in electronic map; a radar sensor, which detects and locates the movement state of objects around the vehicle; a vehicle speed sensor, It detects the actual vehicle speed signal of the vehicle; the controller, which receives the signals sent by the radar sensor and the vehicle speed sensor, calculates the absolute speed and driving direction of the surrounding driving objects, judges whether there is a threat to the safe driving of the vehicle, and converts the judgment result into a control The signal controls the GPS navigator for voice prompts. The reminder device has a simple structure and is practical, expands the new functions of the GPS navigator, and plays an important role of safety reminder during the driving of the car.

Description

A car safety driving reminder device

technical field

The utility model belongs to the technical field of automobiles, and relates to an anti-collision system, in particular to an automobile safety driving reminding device.

Background technique

GPS navigation system has become more and more popular. The existing GPS navigation system generally consists of 9 important parts such as antenna, chip, processor, memory, display, button, speaker, expansion function slot, and map navigation software. Practical functions such as query, route planning, automatic navigation, automatic voice guide, etc. Vehicle radar is generally used when the vehicle is parked to detect the distance between the vehicle body and surrounding objects.

However, the GPS navigation system cannot detect the traffic conditions and driving information of the surrounding vehicles. During the driving process of the vehicle, the vehicle in front brakes suddenly, the surrounding vehicles suddenly jump out, etc., and the GPS navigation system cannot send an alarm message to the driver. , due to the fatigue of the driver, it is too late to take appropriate measures, causing traffic accidents in which cars collide or even crash.

Contents of the invention

The utility model aims at the above-mentioned problems in the existing technology, and proposes a car safety driving reminding device, which can detect the driving state of surrounding cars and give voice warning while realizing GPS navigation.

The utility model is realized through the following technical schemes: an automobile safety driving reminding device, which is characterized in that it includes a GPS navigator, which is used for voice reminders of driving routes, traffic signs and line speed limit information according to the built-in electronic map; Radar sensor, which is used to detect and locate the moving state of objects around the vehicle; vehicle speed sensor, which is used to detect the actual vehicle speed signal of the vehicle; controller, which is used to receive the signals sent by the radar sensor and the vehicle speed sensor to calculate the surrounding driving objects Absolute speed per hour and direction of travel, judge whether there is a threat to the safe driving of the car, and convert the judgment result into a control signal to control the GPS navigator to carry out voice prompts; the radar sensor and the vehicle speed sensor are connected with the controller input, and the GPS navigator Connect with the controller. The radar sensor and the vehicle speed sensor are connected with the input terminal of the controller, and the GPS navigator is connected with the controller.

In the above-mentioned reminding device for safe driving of automobiles, the controller is an electronic control unit (ECU).

In the above-mentioned reminder device for safe driving of automobiles, there are at least four radar sensors, which are respectively arranged around the vehicle body. By setting radar sensors around the vehicle body, the detection around the vehicle body can be realized.

In the above-mentioned warning device for safe driving of automobiles, there are eight radar sensors, two of which are respectively arranged in front, rear, left and right of the vehicle body.

In the above-mentioned reminder device for safe driving of automobiles, there are twelve radar sensors, three of which are respectively arranged in front, rear, left and right of the vehicle body.

The utility model is based on the existing GPS navigator and adds a radar sensor. When the vehicle is running, the vehicle speed sensor, the radar sensor and the GPS navigator are turned on. The vehicle speed sensor transmits the vehicle speed signal to the controller, and the radar sensor sends the surrounding The distance signal between the object and the vehicle is sent to the controller. The controller obtains the speed and direction of the surrounding objects by processing the above speed signal and distance signal, and judges whether the object poses a threat to the safe driving of the vehicle. If there is a threat, the controller sends A control signal is given to the GPS navigator, and the GPS navigator is controlled to give voice reminders to the driver.

Compared with the prior art, the utility model is simple in structure and practical, expands the new functions of the GPS navigator, and plays an important role of safety reminder in the process of driving the car.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

The following are specific embodiments of the utility model, and the technical solutions of the utility model are further described in conjunction with the accompanying drawings, but the utility model is not limited to these embodiments.

As shown in Figure 1, the automobile safety driving reminder device includes a vehicle speed sensor, a radar sensor, a GPS navigator and a controller. The radar sensor and the vehicle speed sensor are connected to the input end of the controller, and the GPS navigator is connected to the controller. The vehicle speed sensor is used to detect the actual vehicle speed signal of the vehicle; the radar sensor is used to detect and locate the movement state of the driving objects around the vehicle; the GPS navigator is used to voice the driving route, traffic signs and line speed limit information according to the built-in electronic map Reminder; the controller is used to receive the signals sent by the radar sensor and the vehicle speed sensor to calculate the absolute speed and driving direction of the surrounding driving objects, judge whether there is a threat to the safe driving of the vehicle, and convert the judgment result into a control signal to control the GPS navigator for voice prompts .

Specifically, there are at least four radar sensors, which are respectively arranged around the vehicle body. In the actual use process, the number of radar sensors can be expanded to eight, twelve, etc. according to the demand, and evenly distributed around the car body. The controller is the electronic control unit ECU, that is, the on-board computer, which uses its powerful functions to calculate, process and judge the information input by various sensors, and then outputs instructions.

When the car is running, turn on the vehicle speed sensor, radar sensor, and GPS navigator, and the GPS navigator will navigate the vehicle; at the same time, the vehicle speed sensor will send the vehicle speed signal to the controller, and the radar sensor will send the distance signal between the surrounding objects and the vehicle. Send it to the controller, and the controller obtains the relative speed and direction of the surrounding objects and the vehicle through the formula v=ds/dt (ds is the distance per unit time, dt is the unit time, and v refers to the speed.) If v is less than If v is zero, it means that the object is approaching the vehicle; if v is greater than zero, it means that the object is moving away from the vehicle; if it is determined that the object is approaching the vehicle, and v is less than a given speed B (B, negative value), and the distance between the object and the vehicle is less than A (the value is a calibrated distance), then it is determined that the object is in danger of colliding with the vehicle. At this time, the controller sends a control signal to the GPS navigator to control The GPS navigator gives voice reminders to the driver.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (5)

1. vehicle safety travel alarm set; It is characterized in that; Comprise be used for according to built-in electronic chart carry out the voice reminder of running route and traffic marking and circuit speed-limiting messages the GPS navigation appearance, be used to detect and positioned vehicle around object state of kinematic motion radar sensor, be used to detect the car speed sensor and the controller of the actual vehicle speed signal of this car; Radar sensor is connected with the controller input end with car speed sensor, and the GPS navigation appearance is connected with controller; The absolute speed per hour and the travel direction of object go around the calculated signals that controller receiving radar sensor and car speed sensor are carried goes out; Whether judgement exists threat to the safety traffic of this car, and converts judged result to control signal control GPS navigation appearance and carry out voice suggestion.

2. vehicle safety travel alarm set according to claim 1 is characterized in that, described controller is ECU ECU.

3. vehicle safety travel alarm set according to claim 1 is characterized in that described radar sensor has four at least, is separately positioned on around the vehicle body.

4. vehicle safety travel alarm set according to claim 3 is characterized in that, described radar sensor has eight, respectively is provided with two in the vehicle body front, rear, left and right.

5. vehicle safety travel alarm set according to claim 3 is characterized in that, described radar sensor has 12, respectively is provided with three in the vehicle body front, rear, left and right.

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