CN106769084A - A kind of automobile attitude monitoring system - Google Patents

Abstract

The invention belongs to the technical field of vehicle posture data detection, and in particular relates to a vehicle posture monitoring system, which is characterized in that it mainly includes: a vehicle-mounted data acquisition device and a data reading and restoring device connected to the vehicle-mounted data acquisition device; the vehicle-mounted data acquisition device includes a plurality of A sensor terminal arranged on the car and a data acquisition and storage controller connected to the sensor terminal; the sensor terminal includes a six-axis sensor and an MCU; the data acquisition and storage controller includes a main controller, a GPS module and a memory module, the GPS module and the memory module are connected to the main controller in communication, and the main controller is also connected to the bus interface of the vehicle. The system can not only collect various data during the driving process of the car and filter and store them, but also restore the state of the car during driving by filtering the stored data.

Description

A car attitude monitoring system

technical field

The invention belongs to the technical field of vehicle posture data detection, and in particular relates to a vehicle posture monitoring system.

Background technique

With the rapid increase in the number of motor vehicles and drivers, while bringing convenience to people's production and life, it also brings safety hazards that cannot be ignored. Serious traffic violations such as speeding, overloading, drunk driving, drug driving, and running red lights have also increased. . After a traffic accident occurs, according to Article 91 of the "Regulations for the Implementation of the Road Traffic Safety Law", the traffic management department of the public security organ shall, based on the role of the behavior of the party involved in the traffic accident and the seriousness of the fault, determine the party's fault. responsibility.

So far, there are mainly three methods for the study of traffic problems: empirical measurement method, theoretical analysis method, and computer simulation. The actual measurement method is to collect, measure and analyze all the data of the accident scene and the vehicle, which is characterized by high reliability of the comparative data and does not require special processing and assumptions; the theoretical analysis method and computer simulation are based on traditional mathematical formula models. Or the logical relationship so as to analyze the system and analyze the accident with the help of the fast computing power of the computer, but there is a shortcoming of not being high enough in practicability.

Contents of the invention

Aiming at the deficiencies of the prior art, the invention provides an automobile attitude monitoring system. The system can not only collect various data during the driving process of the car and filter and store them, but also restore the state of the car during driving by filtering the stored data.

In order to achieve the above object, a vehicle posture monitoring system of the present invention mainly includes: a vehicle-mounted data acquisition device and a data reading and restoration device communicatively connected with it; The data acquisition storage controller that sensor terminal is connected; Described sensor terminal comprises six-axis sensor and MCU; Described data data acquisition storage controller comprises master controller, GPS module and memory module, and described GPS module and memory module are respectively Communicatively connected to the master controller, which is also interfaced with the vehicle bus.

Preferably, the data reading and restoration device includes a data reading module for reading memory module data, a body posture restoration module for restoring and reproducing the body posture by reading memory module data, and a data reading module for over-reading A vehicle body state force display module that stores module data and displays body state force.

Preferably, there are four sensor terminals, which are respectively arranged at the left front, right front, left rear and right rear of the car.

Preferably, the six-axis sensor refers to a six-axis sensor with six degrees of freedom: X-axis acceleration, Y-axis acceleration, Z-axis acceleration, X-axis angular velocity, Y-axis angular velocity, and Z-axis angular velocity.

Preferably, the six-axis sensor is provided with an accelerometer and a gyroscope, and the signal data of the accelerometer and gyroscope are filtered by a filtering device before being connected to the MCU.

Preferably, the sensor terminal is connected to the main controller on the data collection storage controller.

Preferably, the memory module on the vehicle-mounted data acquisition device is communicatively connected with the data reading and restoration device.

As a further improvement of the above solution, the memory module is an SD card memory.

During the running of the car, the sensor terminal detects the actual running posture of the car in real time and transmits the data to the main controller. The main controller is connected with the bus interface of the vehicle, and the main controller compares the actual data information during the operation of the vehicle with the ideally controlled vehicle attitude data information. When the car is running normally, the main controller only selects and stores a very small amount of key data or does not store recorded data through the SD card memory; when the main controller compares the data information of the sensor terminal with the ideally controlled car attitude data information is not normal , if there is an abnormal external force during the running of the car, the main controller records and stores all the key data in the running process of the car through the SD card memory, including car control information, map position information, and car forward acceleration, lateral acceleration, vertical Acceleration, forward speed, lateral speed, vertical speed, roll angle, pitch angle, direction angle, etc. When needed, the vehicle running state information at critical moments can be reproduced through the data reading and restoring device.

The invention can not only collect various data in the driving process of the car and filter and store them, but also restore the state of the car in the running process by filtering the stored data.

Compared with traditional empirical measurement methods, theoretical analysis methods, computer simulations, etc., the present invention has a simpler structure, more real and reliable data, and can better restore the state of the vehicle during driving. This has important research significance for traffic accident scene analysis, responsibility identification, and safe driving of automobiles.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2 is a schematic diagram of the working process of the vehicle-mounted data acquisition device.

Among them, 1 is a vehicle-mounted data acquisition device, 11 is a sensor terminal, 12 is a data acquisition storage controller, 121 is a main controller, 122 is a GPS module, 123 is an SD card memory, 2 is a data reading and restoring device, and 3 is a car bus interface.

detailed description

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

With reference to Fig. 1 and Fig. 2, a kind of vehicle posture monitoring system of the embodiment of the present invention mainly comprises: vehicle-mounted data acquisition device 1 and data read restoration device 2; Described vehicle-mounted data acquisition device 1 comprises four sensors arranged on the automobile Terminal 11 and data acquisition storage controller 12, four sensor terminals 11 are respectively arranged in the left front, right front, left rear and right rear positions of the car; each sensor terminal 11 includes a six-axis sensor and MCU; the data data Acquisition storage controller 12 includes main controller 121, GPS module 122 and SD card memory 123, described GPS module 122 and SD card memory 123 are connected with main controller 121 communication respectively, and described main controller 121 is also connected with automobile bus Interface 3 is connected.

Referring to FIG. 1 and FIG. 2 , the six-axis sensor refers to a six-axis sensor with six degrees of freedom of X-axis acceleration, Y-axis acceleration, Z-axis acceleration, X-axis angular velocity, Y-axis angular velocity, and Z-axis angular velocity. The six-axis sensor is provided with an accelerometer and a gyroscope, and the signal data of the accelerometer and the gyroscope are filtered by a filter device and then connected to the MCU. The sensor terminal 11 is connected with the main controller 121 on the data collection storage controller 12 . The SD card memory 123 on the vehicle-mounted data collection device 12 is connected to the data reading and restoring device 2 in communication.

The data reading and restoration device 2 includes a data reading module for reading memory module data, a vehicle body posture restoration module for restoring and reproducing the body posture by reading the memory module data, and a data reading module for over-reading the memory module The body state force display module that collects data and displays the body state force.

Referring to FIG. 1 and FIG. 2 , during the running of the car, the sensor terminal 11 detects the actual running attitude of the car in real time and transmits the data to the main controller 121 . The main controller 121 is connected with the vehicle bus interface 3, and the main controller 121 compares the actual data information during the operation of the vehicle with the ideally controlled vehicle attitude data information. When the car is running normally, the main controller 121 only selects and stores a very small amount of key data or does not store the recorded data through the SD card memory 123; When the comparison is found to be abnormal, such as when the car is overturned, collided, or blown out during the operation of the car, the main controller 121 records and stores all the key data of the car running process through the SD card memory 123, including car control information. Map position information, as well as car forward acceleration, lateral acceleration, vertical acceleration, forward speed, lateral speed, vertical speed, roll angle, pitch angle, direction angle, etc. When needed, the vehicle running state information at critical moments can be reproduced by the data reading and restoring device 2 .

The embodiment of the present invention can not only collect various data during the driving process of the car and filter and store them, but also restore the state of the car during the driving process by filtering the stored data.

Compared with traditional empirical measurement methods, theoretical analysis methods, computer simulations, etc., the present invention has a simpler structure, more real and reliable data, and can better restore the state of the vehicle during driving. This has important research significance for traffic accident scene analysis, responsibility identification, and safe driving of automobiles.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (8)

1. a kind of automobile attitude monitoring system, it is characterised in that mainly include：Vehicle carried data collecting device and the company of communicating with The digital independent reduction apparatus for connecing；The vehicle carried data collecting device include a plurality of sensor terminals being arranged on automobile with And the data acquisition storage control being connected with sensor terminal；The sensor terminal includes six axle sensors and MCU；Institute State Data Data collection storage control and include master controller, GPS module and memory module, the GPS module and storage Device module is communicated to connect with master controller respectively, and the master controller is also connected with car bus interface.

2. a kind of automobile attitude monitoring system according to claim 1, it is characterised in that the digital independent reduction apparatus The data read module for reading memory module data is included, for being gone forward side by side driving by reading memory module data Figure state reduction reproduce body gesture recovery module, and for cross reading memory module data go forward side by side driving body state receive The vehicle body state stress display module that power shows.

3. a kind of automobile attitude monitoring system according to claim 1, it is characterised in that the sensor terminal is four It is individual, it is respectively arranged in the front left, front right, rear left and right position of automobile.

4. a kind of automobile attitude monitoring system according to claim 1, it is characterised in that six axle sensor refers to X Six axles of axle acceleration, Y-axis acceleration, Z axis acceleration, X-axis angular speed, Y-axis angular speed and Z axis angular speed this six-freedom degree Sensor.

5. a kind of automobile attitude monitoring system according to claim 1, it is characterised in that six axle sensor is provided with Accelerometer and gyroscope, the signal data on the accelerometer and gyroscope are connected with MCU again after filter is filtered.

6. a kind of automobile attitude monitoring system according to claim 1, it is characterised in that the sensor terminal and data Master controller connection on collection storage control.

7. a kind of automobile attitude monitoring system according to claim 1, it is characterised in that the vehicle carried data collecting device On memory module and digital independent reduction apparatus communicate to connect.

8. a kind of automobile attitude monitoring system according to claim 7, it is characterised in that the memory module is SD card Memory.