KR20010002737A - An apparatus for recording the running state of an automobile - Google Patents

Abstract

PURPOSE: A black box for a vehicle is provided to solve the problem of insufficient reliability of traveling data due to the deviation of the reference time, and to cope with accidents by referring the traveling data in a remote place in a real time. CONSTITUTION: A black box for a vehicle formed with a wheel sensor(31) detecting a rotation angle of a steering wheel, a velocity sensor(40) detecting an operational state and travelling velocity of a brake, a video camera(90) filming the state of the vehicle, and a shocking sensor(110) detecting a shock applied to the vehicle, wherein the black box for a vehicle includes a GPS(Global Positioning System) engine(20) receiving time and position information from a GPS, a MPU(MicroProcessor Unit)(60) storing traveling record data of the vehicle input through the wheel sensor and the velocity sensor in memories(70,80) by using the time received in the GPS engine as a reference time, and a radio communicating part(10) wirelessly transmitting traveling data stored in the memories.

Description

{An apparatus for recording the running state of an automobile}

The present invention relates to a vehicle driving record apparatus, and in particular, to record the traveling speed of the vehicle, the operating state of the brake, the front, rear, left and right moving images of the vehicle input through the video camera, and the like to be used for accident analysis as well as the position of the wireless transmission vehicle, The present invention relates to a vehicle driving record apparatus that can be used for logistic management by using data such as types and loads of cargo.

In general, when a traffic accident occurs, the drivers of both vehicles pass the cause of the accident to each other until the cause of the accident is clearly identified. Therefore, there is an unreasonable point that proper compensation and punishment are not made when the cause of the accident is not clearly identified.

In order to solve this problem, the vehicle speed, brake and accelerator operation status, engine rotational speed (RPM), steering wheel angle, the front and rear, left and right videos of the vehicle input through the video camera, and the driver's voice are recorded. Automotive black boxes (tachometer systems) are being developed for use in cause analysis.

However, the currently developed vehicle black box records the vehicle's driving record using the reference time calculated by the oscillation frequency of the built-in crystal oscillator, which may cause deviation in the reference time for each vehicle. There is a problem that the driving record data of the vehicle stored in the vehicle is not reliable.

In other words, if a deviation occurs in the reference time that records the driving record of the injured vehicle and the damaged vehicle, the driving record data of the injured vehicle and the damaged vehicle do not coincide with each other when the accident occurs. Therefore, not only the cause of the accident cannot be clearly identified, but also in the extreme case, the injured vehicle and the injured vehicle can be reversed.

In addition, even if the vehicle is equipped with the black box as described above, if the vehicle explodes or burns out due to an accident, or if the vehicle falls in the river or the sea, the driving record data stored in the black box may be damaged, and the cause of the accident may be analyzed or identified. There is no problem.

In addition, in order to inquire or analyze the driving record of the vehicle, it is possible to analyze the data only by connecting a computer directly to the black box of the vehicle, and it is impossible to inquire or analyze the driving record of the vehicle at a remote location. There is a problem that can not be.

In addition, although the operation record of a freight truck carrying a cargo is an important factor in determining the efficiency of logistics management, the operation record of a vehicle stored in a black box at a remote location, for example, the current position of the vehicle, the type and load of the loaded cargo, etc. There is a problem that it is difficult to secure the efficiency of logistics management because it is unable to transport the necessary cargo in a timely manner due to the inability to grasp.

Accordingly, the present invention has been invented to solve the above problems, by using the time provided by the Global Positioning System (GPS) as a reference time for storing the driving record of the vehicle due to the deviation of the reference time when an accident occurs It is an object of the present invention to provide a vehicle driving record apparatus that can solve the lack of reliability of driving record data.

It is another object of the present invention to provide a vehicle driving record apparatus capable of clearly identifying the cause of an accident by preserving driving record data of a vehicle even when an external shock or fire occurs by being subjected to temperature, dust, water resistance, and pressure discharge treatment. .

Still another object of the present invention is to provide a vehicle driving record apparatus that can cope with the occurrence of an accident more quickly, and can be efficiently used for logistic management, since the driving record data of the vehicle can be inquired in real time from a remote place. .

In order to achieve the above object, the present invention, the wheel sensor for detecting the rotation angle of the steering wheel, the brake contact and speed sensor for detecting the operating state and driving speed of the brake, video camera for photographing the front and rear, left and right situations of the vehicle, vehicle An automobile driving record apparatus comprising a shock sensor for detecting an impact applied to a vehicle, comprising: a GPS engine receiving time and position information from a global positioning system (GPS), and using the time received from the GPS engine as a reference time; And an MPU for storing driving record data of the vehicle input through the wheel sensor and the speed sensor, and a wireless communication unit for wirelessly transmitting the driving record data of the vehicle stored in the memory.

In another aspect, the present invention is characterized in that it further comprises a bar code input for determining the type of cargo and a load cell for detecting the load of the cargo.

In addition, the present invention, the upper and lower case made of a high-strength metal is formed in the mounting groove therein and one side of the data input and output terminals and the power supply terminal are coupled to each other by a fixing bolt; A gasket mounted between the cases; A metal case having a circuit board storing data therein and mounted in the mounting groove; It further comprises a disaster prevention memory made of glass fibers to minimize the heat conduction transmitted through the upper and lower cases and absorb shock, wherein the molding silicon and fused silicon are respectively filled between the glass fiber and the metal case and the metal case and the circuit board. It is characterized by.

1 is a block diagram showing a vehicle driving record apparatus according to the present invention;

2 is a perspective view showing the disaster prevention memory shown in FIG. 1;

3 is an exploded perspective view of the disaster prevention memory shown in FIG. 2;

Explanation of symbols for main parts of the drawings

10: wireless communication unit 20: GPS engine

31: Wheel sensor 40: Speed sensor

60: MPU 70: disaster prevention memory

80: secondary memory 90: video camera

100: ultrasonic rangefinder 110: shock sensor

120: barcode input unit 130: load cell

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a block diagram showing a vehicle driving recorder according to the present invention, the wheel sensor 31 for detecting the rotation angle of the handle to the MPU (Microprocessor Unit) (60) that collectively controls the vehicle driving recorder, the operation of the brake Brake contact and speed sensor 40 for detecting state and driving speed, wireless communication unit 10 for wirelessly transmitting driving record data of stored vehicle, GPS engine 20 for receiving time and position information transmitted from GPS, external device The interface circuit section 50 for connection with the circuit is connected via a bus Bus.

In addition, the video camera 90 for photographing the front, rear, left, and right of the vehicle, the ultrasonic rangefinder 100 for measuring the distance between the vehicle before and after, the impact sensor 110 for detecting the impact applied to the vehicle, the type of loaded cargo The bar code input unit 120 for discrimination and the load cell 130 for detecting a load amount of the cargo are connected to the MPU 60 by a bus, and the driving record data of the vehicle input through the component is stored in the auxiliary memory 80. It is stored in the disaster prevention memory 70.

That is, the MPU 60 receives the time and location information transmitted from the GPS through the GPS engine 20, the time received from the GPS is used as a reference time for recording the driving record of the vehicle and received from the GPS Based on the location information is calculated to calculate their exact position. The position information thus calculated is temporarily stored in the auxiliary memory 80 and then stored for a long time in the disaster prevention memory 70.

In addition, the MPU 60 detects the driving state of the vehicle through the wheel sensor 31, the brake contact point and the speed sensor 40, and whether the brake is used, the number of times, the use time, the operation of the sudden brake, the steering wheel The driving record data such as the rotation angle and the traveling speed is stored in the auxiliary memory 80 for 8 hours in 1 second units, sampled, and 365 days of data are recorded in the disaster prevention memory 70 in 1 minute units.

Therefore, since the driving record for 8 hours while the vehicle is driving is recorded in the auxiliary memory 80 in units of 1 second when the accident occurs, the cause of the accident can be more precisely and clearly identified. That is, it is possible to clearly identify the cause of the accident by diagnosing and analyzing whether the brake is operated and the accelerator is operated during sudden start and airbag accidents.

On the other hand, the shock sensor 110 using a piezoelectric element detects a collision of the vehicle, the video camera 90 operates in accordance with the output signal of the impact sensor 110 when the accident occurs to record the situation of the front, rear, left and right of the vehicle. The video signal photographed by the video camera 90 is converted into a digital signal and stored directly in the disaster prevention memory 70 without going through the MPU 60 through DMA (Direct Memory Access), thereby enabling a faster and more accurate processing.

In addition, the ultrasonic range finder 100 measures the distance between objects in front, rear, left, and right of the vehicle, for example, a nearby vehicle by using a wavelength difference of ultrasonic waves having a frequency of 20 KHz or more, and generates an alarm alarm when the vehicle is in close proximity. To ensure safe distances or drive defensive driving to prevent collisions and collisions of vehicles.

On the other hand, the bar code input unit 120 scans the bar code attached to the load cargo to determine the type of the load, the load cell 130 detects the load amount of the cargo, the detected data is stored in the auxiliary memory 80 It is transmitted to the distribution center through the wireless communication unit 10 and used for logistics management.

That is, according to a transmission command sent from a remote distribution center, the wireless communication unit 10 stores logistic data stored in the auxiliary memory 80 or disaster prevention memory 70, that is, data such as the location of the vehicle, the type of cargo and the amount of load. The wireless delivery to the distribution center allows the distribution center to efficiently control the transportation of cargo.

As described above, the driving record data of the vehicle stored in the auxiliary memory 80 and the disaster prevention memory 70 is compressed and stored for efficient use of the memories 70 and 80. Meanwhile, 32, which is not described, shows a wheel detector module detecting a rotation angle of a handle by using an output signal of the wheel sensor 31.

2 is a perspective view showing an example of the disaster prevention memory shown in FIG. 1, wherein upper and lower cases 71 and 72 made of high-strength metal are coupled to the fixing bolts 74, and the upper case 71 and the lower case 72. The gasket 73 is provided between the two sides, and the data input / output terminal 71a and the power supply terminal 72a are formed on one side of the upper and lower cases 71 and 72, respectively.

The upper and lower cases (71, 72) is formed by performing the surface processing after the single or cast a metal having the same or more than the tensile strength and the melting point of stainless steel, the tensile strength is 100 tons and the high tensile strength and melting point of 1500 ℃ It has high heat resistance.

Meanwhile, as shown in FIG. 3, mounting grooves 72b in which upper and lower cases 71 and 72 are mounted with a metal case 75 having a circuit board on which data is stored are formed. ) Is used as a preliminary protection device to protect the circuit board when the upper and lower casings 71 and 72 are damaged.It also blocks the divergence of electromagnetic waves generated from the inside and blocks the electromagnetic waves and noise introduced from the outside to operate the circuit stably. To perform the function.

In addition, the outer surface of the metal case 75 is coated with a refractory carbon, the metal case 75 coated with a refractory carbon is wrapped in glass fiber 76 and the mounting groove 72b formed in the upper and lower cases (71, 72) ) Is mounted. The refractory carbon substantially blocks heat conduction transferred to the circuit board through the upper and lower cases 71 and 72 and the glass fibers 76 having heat resistance, and the glass fibers 76 are transferred through the upper and lower cases 71 and 72. Minimize thermal conduction, and protect the circuit board by forming a shock absorbing buffer layer.

In addition, molding silicon is filled between the glass fiber 76 and the refractory carbon, which not only fuses the metal case 75 to the upper and lower cases 71 and 72, but also the metal case 75 when the disaster prevention memory is flooded. It serves two functions to prevent oxidation). In addition, the fused silicon charged between the circuit board and the metal case 75 prevents the inflow of moisture to prevent corrosion or short circuit of the circuit board and protects the components of the circuit board from impact. .

As described above, the present invention uses the time provided by the Global Positioning System (GPS) as a reference time for recording the driving record of the vehicle, thereby eliminating the lack of reliability of the driving record data due to the deviation of the reference time when an accident occurs. In addition, by storing driving record data in the disaster prevention memory that has been treated with temperature, dust, waterproof, and pressure, the cause of the accident can be clearly identified by preserving the data even when an external shock or fire occurs.

In addition, the vehicle's driving record data can be inquired in real time from a remote location, so that it is possible to cope more quickly when an accident occurs, and also the location of the vehicle, type of cargo and load can be checked at a remote location. Record data can be utilized.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (4)

Wheel sensor 31 for detecting the rotation angle of the steering wheel, brake contact and speed sensor 40 for detecting the operating state and the driving speed of the brake, video camera 90 for shooting the front, rear, left and right of the vehicle, applied to the vehicle In the vehicle driving record device consisting of a shock sensor 110 for detecting a shock, GPS engine 20 receiving time and position information from a global positioning system (GPS) and the wheel sensor 31 and the speed using the time received from the GPS engine 20 as a reference time. The MPU 60 stores the driving record data of the vehicle input through the sensor 40 in the memory 70, 80, and the wireless communication unit wirelessly transmits the driving record data of the vehicle stored in the memory 70, 80. 10. A vehicle driving record apparatus comprising: 10; The vehicle driving record apparatus according to claim 1, further comprising a bar code input unit (120) for determining the type of cargo and a load cell (130) for detecting the load of the cargo. The upper and lower cases of claim 1, wherein a mounting groove 72b is formed therein, and a data input / output terminal 71a and a power supply terminal 72a are formed at one side, respectively, and are made of a high strength metal coupled to each other by a fixing bolt 74. (71,72); A gasket (73) mounted between the cases (71, 72); A metal case 75 having a circuit board storing data therein and mounted in the mounting groove 72b; Further comprising a disaster prevention memory 70 made of glass fiber 76 to minimize the heat conduction transferred through the upper and lower cases (71, 72) and absorb shock, the glass fiber 76 and the metal case (75) and Molding silicon and fused silicon are filled between the metal case 75 and the circuit board, respectively. According to claim 1, Ultrasonic wave to measure the distance to the vehicle existing in the front, rear, left and right of the vehicle by using the wavelength difference of the ultrasonic wave and generates an alarm alarm when the vehicle is in close proximity to guide the driver to secure a safety distance or defensive driving Vehicle driving record apparatus further comprises a rangefinder (100).