RU62470U1 - SYSTEM OF REGISTRATION AND ANALYSIS OF PARAMETERS OF MOTION AND TECHNICAL CONDITION OF VEHICLE - Google Patents

Abstract

The invention relates to systems for ensuring road safety and is intended to control traffic parameters and the technical condition of the vehicle (TS), prevent accidents on the road and provide conditions for an objective investigation of the circumstances of a traffic accident (accident). The technical result is aimed at increasing the information content of the motion parameters and technical condition of the vehicle during an accident, increasing the efficiency and ease of use of these records to restore and analyze the full picture of an accident, analyzing the technical condition of the vehicle at the time of the accident and possibly preventing it due to timely maintenance or repair. The technical result is achieved by the fact that in the system of registration and analysis of the parameters of movement and the technical condition of the vehicle, containing installed on the vehicle track speed and longitudinal acceleration component, an angular velocity meter and a transverse acceleration component meter connected to the corresponding ADC inputs, as well as a register memory and a solver, a critical parameter display unit, an instruction generation unit, and a conversion unit connected in series The data format, non-volatile memory, data reading unit and wireless data transmission unit, are additionally introduced - a unit for monitoring the status of tires, a unit for sensors of the serviceability of the brake system and a unit for sensors of the serviceability of the steering, the outputs of which are connected to the corresponding inputs of the analog-to-digital converter, the output of which connected to the input of the memory register and to the input of the deciding device,

moreover, the data format conversion unit is connected to the output of the memory register, the first output of the solving device is connected to the input of the critical parameters display unit, and the second output through the command generation unit is connected to the control input of the memory register, and when an accident occurs, the command generation unit sends a signal to the GSM transmitter, in this case, the ADC is configured to enter into it data on all the controlled parameters specified above, the memory register - with the ability to activate the process of reading information from it in non-volatile memory, and a data reader with the ability to enter data into a portable computer via a standard interface. Also, a GSM traffic signal unit about an accident has been introduced into the system, and a data reading unit is made in the form of USB 2.0. As a result of the application of the proposed system, the driver of a vehicle in an accident has objective information about the technical condition that affects the safety of the vehicle, and the trajectory of the vehicle and its orientation relative to the specified trajectory, which can help him understand the true causes of the accident and protect his rights when considering an accident in the state inspectorate for road safety and in court, as well as in case of loss of consciousness, the driver of the vehicle alerts the traffic police about what happened. At the same time, the system under consideration acts as a means of notifying the driver about the measured parameters beyond the permissible values, which in many cases can prevent the occurrence of an accident.

Description

The invention relates to systems for ensuring road safety and is intended to control traffic parameters and the technical condition of the vehicle (TS), prevent accidents on the road and provide conditions for an objective investigation of the circumstances of a traffic accident (accident). In conditions of a high level of motorization of society, it is important to find ways and technical means that, on the one hand, stimulated, and on the other, forced drivers to comply with traffic rules. Known means used on large-capacity cargo vehicles and in multi-seat buses, which are tachographs, digital tachographs and route data recorders.

The disadvantage of tachographs is the use of outdated technology for recording data using a recorder.

A digital tachograph is known (US patent 4188618, IPC G 08 G 17/00, 1980) for recording vehicle parameters, comprising a vehicle dynamic parameter meter installed on board the vehicle. The specified technical solution is implemented, in particular, in the digital tachograph BR-6800/6802 from Baoruh Electronic Co, Ltd. (Taiwan). The BR-6800/6802 tachograph is a universal device that can be installed on various types of vehicles as additional electronic equipment. On the one hand, such versatility is the advantage of this device, and, on the other hand, a disadvantage, since it causes its high cost. In addition, the tachograph BR-6800/6802 is not effective enough in case of an accident, since in the emergency section (from the beginning of the accident to a complete stop of the vehicle)

A more complete set of recorded motion parameters and a higher resolution of the recordings are required.

More technically advanced and convenient to use are digital route data recorders, which make it possible to record vehicle motion parameters during an accident with a higher frequency and, accordingly, with a higher resolution than in normal mode. This allows you to more fully and accurately restore the picture of an accident.

The disadvantages of digital route data recorders are the lack of opportunities for increased completeness of monitoring and analysis of the technical condition of the vehicle, affecting safety, both at the accident site and during operation.

The closest set of essential features to the claimed technical solution is a system for recording and restoring vehicle motion parameters (RF patent No. 2221277, IPC G 07 C 5/08, 2003.), which is selected as a prototype, containing analogs installed on the vehicle -digital converter (ADC), made with the possibility of digitizing the analog signals from speed meters, the longitudinal component of the acceleration, the transverse component of the acceleration and angular velocities, output the odes of which are connected to the corresponding inputs of the ADC, the output of which is connected to the input of the memory register and to the input of the deciding device, as well as a critical parameter display unit, an instruction generation unit and series-connected data format conversion unit, non-volatile memory, a data reader and a wireless data transmission unit , the input of the data format conversion unit is connected to the output of the memory register, the first output of the deciding device is connected to the input of the critical parameter display unit, and the second exit through the command generation unit to the control input of the memory register, while the ADC is configured to enter data on the angular velocities and transverse components of the vehicle acceleration, the memory register - with

the ability to activate the process of reading information from it into non-volatile memory, and the data reading unit - with the ability to enter data into a portable computer through a standard interface.

The disadvantage of the system is the lack of the ability to control and analyze the parameters of the technical condition of the vehicle, affecting safety, both at the accident site and during operation, for example, the value of the parameters characterizing the brake system is not displayed on the critical parameter display unit, and the lack of operational remote informing the traffic police about the accident.

The technical result is aimed at increasing the information content of the motion parameters and technical condition of the vehicle during an accident, increasing the efficiency and ease of use of these records to restore and analyze the full picture of an accident, analyzing the technical condition of the vehicle at the time of the accident and possibly preventing it due to timely maintenance or repair.

The technical result is achieved by the fact that in the system of registration and analysis of the parameters of movement and the technical condition of the vehicle, containing installed on the vehicle track speed and longitudinal acceleration component, an angular velocity meter and a transverse acceleration component meter connected to the corresponding ADC inputs, as well as a register memory and a solver, a critical parameter display unit, an instruction generation unit, and a conversion unit connected in series The data format, non-volatile memory, data reading unit and wireless data transmission unit, are additionally introduced - a unit for monitoring the status of tires, a unit for sensors of the serviceability of the brake system and a unit for sensors of the serviceability of the steering, the outputs of which are connected to the corresponding inputs of the analog-to-digital converter, the output of which connected to the input of the memory register and to the input of the deciding device,

moreover, the data format conversion unit is connected to the output of the memory register, the first output of the deciding device is connected to the input of the critical parameter display unit, and the second output through the command generation unit is connected to the control input of the memory register, and when an accident occurs, the command generation unit sends a signal to the GSM transmitter, in this case, the ADC is configured to enter into it data on all the monitored parameters specified above, the memory register - with the ability to activate the process of reading information from it in non-volatile memory, and a data reader with the ability to enter data into a portable computer via a standard interface. Also, a GSM traffic signal unit about an accident has been introduced into the system, and a data reading unit is made in the form of USB 2.0.

Distinctive features are the additional introduction of a block of sensors for monitoring the condition of tires, a block of sensors of serviceability of the brake system and a block of sensors of serviceability of the steering, a GSM unit of a signal transmitter about an accident, and the use of a faster data transfer method (USB 2.0) in the data reading unit.

The drawing shows a structural diagram of the proposed system. The following notation is used on the indicated diagram: 1 - ground speed meter; 2 - meter longitudinal component of acceleration; 3 - meter transverse acceleration components; 4 - angular velocity meter; 5 - block of sensors for monitoring the condition of tires, 6 - block of sensors for serviceability of the brake system, 7 - block of sensors for serviceability of the steering, 8 - ADC; 9 - memory register; 10 - a decisive device; 11 - block display critical parameters; 12 - block forming teams; 13 - a block of a GSM transmitter of a signal about an accident; 14 - a block for converting a data format; 15 - non-volatile memory; 16 - data reading unit; 17 - block wireless data transmission.

The system contains a set of measuring instruments for the motion parameters and technical condition of the vehicle. Ground speed meter 1, longitudinal meter 2

component of acceleration. Typically, these meters are part of the standard or additional electrical equipment of the vehicle. A transverse acceleration component meter 3, which measures using two accelerometers rigidly connected to the vehicle body and mounted orthogonally to each other and an angular velocity meter 4, which includes three orthogonally oriented gyroscopic sensors of the ADXRS 300 type (see information from Analog Devices, Inc. on the website www.analog.corn). Block 5 sensors monitoring automobile tires consists of an indicator of tire wear and a tire pressure sensor. These sensors are well studied and used in serial production of both domestic and Western manufacturers. Block 6 sensors serviceability of the brake system consists of sensors for wear of the brake pads, brake fluid level sensors, pressure sensors in the pneumatic actuator. The unit 7 sensors operability of the steering includes a sensor clearance of the steering wheel, the level and pressure sensors of the power steering fluid. The above sensor blocks allow you to determine the causes of accidents and prevent it by informing the driver about a particular malfunction and excess, for example, of the speed of movement on the liquid crystal display. Block 13 - GSM signal transmitter about an accident allows you to send a signal in the form of a voice message to the phone number of the traffic police on duty about the incident, and also report the phone number of the GSM transmitter to determine the location of the accident by the traffic police. The use of a GSM transmitter has become possible due to the constantly expanding coverage areas of networks of mobile operators. As well as the opportunity to contact the traffic police for free at the number "112", "911". The above-mentioned GSM transmitter sends a voice message during an accident, for example: “My car has an accident. My last name is Ivanov I.I. The brand of the car is VAZ 2109 No. 3333oh, the number of the mobile transmitter is 89035678764. ” This information is especially relevant in incidents,

when the driver loses consciousness and cannot independently call the traffic police, medical workers.

The output of the ADC 8 is connected to the input of the memory register 9 and the input of the deciding device 10, which is a microprocessor with memory. The first output of the deciding device 10 is connected to the input of the critical parameter display unit 11, and the second output is connected to the input of the command generation unit 12. The critical parameter indication unit 11 may be performed, for example, on a liquid crystal display device widely used in automotive electronics. The output of the command generation unit 12 is connected to the control input of the memory register 9, the output of which through the data format conversion unit 14 is connected to the input of the non-volatile memory 15, which is, for example, flash memory. The capacity of the memory register 9 is selected based on the length of the recorded portion of the vehicle trajectory and the resolution necessary to establish a fairly objective picture of the accident, as well as the corresponding values of the indications received from blocks 5, 6, 7. corresponding to this section of the motion path, the capacity of non-volatile memory 15 is determined, mostly cost constraints. Block 10 converting the data format is designed for more economical use of the capacity of non-volatile memory 15 when sequentially recording segments of the vehicle trajectory into it, since this information is not destroyed and is intended for long-term storage. The output of the non-volatile memory 15 is connected to the input of the data reader 16, one of the outputs of which can be connected to a standard input of a portable computer (such as a Notebook), for example, to a USB 2.0 interface and the other output to the input of a wireless data transfer unit 17, in which a commercially available Bluetooth site may be used. Detailed information on Bluetooth technology can be found, for example, on the website www. bluetooth.com.

In the general case, during the motion of the vehicle, the motion parameters are measured, by which a three-dimensional picture is subsequently restored

the trajectory of the center of mass moving and the orientation of the vehicle body relative to the specified trajectory, as well as the parameters characterizing the working condition of the units, assemblies, vehicle systems that affect safety. These include:

- ground speed determined by the gauge 1 ground speed;

- the longitudinal component of the acceleration, determined using the meter 2;

- two transverse components of acceleration, determined using meter 3;

- three mutually orthogonal components of the angular velocity, determined using a 4 angular velocity meter;

- the amount of wear of the tread pattern and tire pressure, determined using the block 5 of the tire condition sensors;

- wear of the brake linings, brake fluid level, pressure in the pneumatic actuator are determined using the block 6 sensors serviceability of the brake system;

- backlash of the steering wheel, the level and pressure of the power steering fluid are determined using the block 7 sensors operability of the steering.

The considered system of registration and analysis of motion parameters and the technical condition of the vehicle works as follows. Analog signals obtained using the above meters and sensor blocks are supplied with a cyclic frequency, depending on a given resolution, to the inputs of the ADC 8 in which they are converted into the corresponding code messages. From the output of the ADC 8, these code messages are sent to the input of the memory register 9, the number of memory cells of which is determined by the specified duration of the restored portion of the trajectory on which the accident occurred, as well as the values of the parameters affecting the safety of the vehicle and the required resolution. After filling all the memory cells of register 9 each

the new code message replaces the earliest message stored in the memory register 9. This process proceeds cyclically. At the same time, the stream of code messages from the output of the ADC 8 enters the decisive device 10. The maximum permissible values of the measured parameters are stored in the memory of the decisive device 10. When any of the measured parameters reaches or exceeds its limit value, a command is generated at the first output of the resolving device 10, which is received at the input of the critical parameter display unit 11, which is designed to notify (audio and / or visual) the vehicle driver about the achievement (excess) of any or a measured parameter of its limit value. Block 11 is executed in the form of a liquid crystal indicator, on which an icon is displayed corresponding to a certain measured parameter, accompanied by a buzzer or a voice message. For example, if the measured value of the ground speed exceeds the maximum permissible value, the corresponding command is sent to the critical parameter display unit 11 to notify the driver about speeding.

From the second output of the decisive device 10, the commands are input to the block 12 of the formation of teams. The unit 12, the formation of commands selects commands that indicate the end of an accident, and feeds them to the control input of the memory register 9 to activate the read mode of the data from the memory register 9 in non-volatile memory 15.

So, if the measured value of the ground speed becomes equal to zero, which indicates the end of the accident (or its first phase), the corresponding command is sent to the control input of the memory register 9. In accordance with this command, the contents of register 9 are read through block 14 for converting the data format into non-volatile memory 15, for example, into flash memory. After that, register 9 is ready to receive new information. Accordingly, in the event of a repeated collision with a stopped

Vehicle of another vehicle, the trajectory of the subsequent movement of the vehicle will be fixed in the same way as in the primary phase of the accident.

One of the advantages of the claimed system is the ability to quickly retrieve data from non-volatile memory 15 using the data reading unit 16 for subsequent operational analysis. If the user of the vehicle (or the state inspection officer present at the accident site) has a portable computer, this data can be "downloaded" from the data reading unit 16 to the specified computer via the standard USB2.0 interface. In the system under consideration, remote sensing of the indicated data is also provided using the wireless data transmission unit 17.

Thus, as a result of the application of the proposed system, the driver of a vehicle that has got into an accident has objective information about the technical condition that affects the safety of the vehicle, and the trajectory of the vehicle and its orientation relative to the specified trajectory, which can help him understand the true causes of the accident and protect his rights when considering an accident in the State Inspectorate for Road Safety and in court, as well as in case of loss of consciousness, the vehicle driver notifies the traffic police about what happened. At the same time, the system under consideration acts as a means of notifying the driver about the measured parameters beyond the permissible values, which in many cases can prevent the occurrence of an accident.

This allows you to move away from the traditional scheme for constructing an automobile tachograph with continuous recording of route data, expand the range of measured vehicle motion parameters in accident areas and implement remote sensing of information recorded on board a vehicle without leaving the acceptable cost of on-board equipment.

Claims (3)

1. A system for recording and analyzing the parameters of movement and the technical condition of the vehicle, comprising installed on the vehicle ground speed and longitudinal acceleration components, an angular velocity meter and a transverse acceleration components connected to the corresponding inputs of the analog-to-digital converter, as well as a memory register and solver, critical parameter display unit, command generation unit, and format conversion unit connected in series and data, non-volatile memory, a data reader and a wireless data transmission unit, characterized in that it additionally includes a tire condition monitoring sensor unit, a brake system health sensor unit and a steering serviceability sensor unit, the outputs of which are connected to the corresponding analog-to-digital inputs a converter, the output of which is connected to the input of the memory register and to the input of the deciding device, and the data format conversion unit is connected to the output of the memory register, the first output One of the solver is connected to the input of the critical parameter display unit, and the second output through the command generation unit is connected to the control input of the memory register, and when an accident occurs, the command generation unit sends a signal to the GSM transmitter, while the analog-to-digital converter is configured to be input into it data on all monitored parameters specified above, the memory register - with the possibility of activating the process of reading information from it into non-volatile memory, and the data reading unit - with the ability to enter data to a portable computer via a standard interface. 2. The system according to claim 1, characterized in that a GSM traffic signal unit about an accident has been inserted into it. 3. The system according to claim 1, characterized in that the data reading unit is made in the form of USB 2.0.