KR102383899B1 - Information processing system for calculationg safety index of vehicle and operation method thereof - Google Patents

Abstract

A static safety index calculator for calculating a static safety index based on accident record data of each vehicle, a speed index, an acceleration index, a deceleration index, and a driving time of each vehicle based on vehicle information data of each vehicle A dynamic safety index for calculating one or more weights based on the driving information calculation unit for calculating the accident record data, and calculating a dynamic safety index based on one or more weights and a speed index, an acceleration index, and a deceleration index Based on the calculation unit, the workload safety index calculation unit for calculating the workload safety index according to the accident rate of each vehicle based on the driving time, and the static safety index, the dynamic safety index, and the workload safety index, overall safety A comprehensive safety index calculator for calculating the index, wherein one or more weights are arithmetic in correspondence with some or all of the speed index, the acceleration index, and the deceleration index.

Description

Information processing system for calculating the safety index of a vehicle and an operating method thereof

The present invention provides an information processing system for calculating a vehicle safety index and an operating method thereof.

A vehicle accident may occur based on human factors such as a driver's condition and driving habit, and environmental factors such as the type of vehicle or road, driving speed, traffic volume, and driving time. In particular, a change in the driving speed of a vehicle according to a section of a road (a straight road and a curved road) may be closely related to traffic safety.

The safety evaluation of the vehicle may be performed based on at least one of a vehicle traffic volume, a road curve, and a road slope. The information processing system for evaluating the safety level of the vehicle may monitor the driving state of the driver and the vehicle. With the development of monitoring technology, various methods of collecting driving data are developed. For example, the vehicle may provide driving data using a global positioning system (GPS). Through such monitoring technology, the driving conditions of the driver and the vehicle may be evaluated in real time, and hazards may be detected.

An object of the present invention is to provide an information processing system capable of calculating a vehicle safety index and an operating method thereof.

A static safety index calculator for calculating a static safety index based on accident record data of each vehicle according to an embodiment of the present invention, a speed index and an acceleration index of each vehicle based on vehicle information data of each vehicle , a driving information calculator for calculating a deceleration index and driving time, calculates one or more weights based on accident record data, and a dynamic safety index based on one or more weights and a speed index, an acceleration index, and a deceleration index A dynamic safety index calculation unit for calculating Based on the index, including a comprehensive safety index calculator for calculating the overall safety index, one or more weights are arithmetic in correspondence with some or all of the speed index, the acceleration index, and the deceleration index.

In an embodiment, the accident record data includes accident rates of vehicles owned in each of the plurality of branches, monthly accident rates of all vehicles owned in the plurality of branches, accident rates by day of the week, and accident rate data by time period.

In an embodiment, the vehicle information data includes GPS data, speed data, and driving time data of each of the vehicles.

In an embodiment, the driving information calculator counts the number of times exceeding the prescribed speed of each vehicle based on GPS data and speed data of each of the vehicles, and a speed calculator that outputs the number of times exceeding the prescribed speed as a speed index; and counting the number of times each of the vehicles accelerated above the specified speed during the first reference time and decelerated below the specified speed during the second reference time based on the GPS data and speed data of each of the vehicles, respectively, during the reference time It includes a rapid deceleration and rapid acceleration calculation unit that outputs the number of times of acceleration above the specified speed as an acceleration index, and outputs the number of times of deceleration below the specified speed during the reference time as a deceleration index.

In an embodiment, the dynamic safety index calculator calculates weights corresponding to the speed index, the acceleration index, and the deceleration index, respectively.

As an embodiment, the dynamic safety index calculation unit calculates a first weight corresponding to the speed index based on GPS data, the number of accidents by road type, and the number of deaths data, and calculates a first weight corresponding to the acceleration index based on the number of accidents compared to the rapid acceleration section Calculate the second weight, and calculate the third weight corresponding to the deceleration index based on the number of accidents compared to the rapid deceleration section.

In an embodiment, the incident record data is updated by the administrator of the information processing system.

In an embodiment, the overall safety index calculation unit calculates the overall safety index in response to an external request of the information processing system.

As an embodiment, the workload safety index calculation unit calculates the accident rate of each vehicle as a workload safety index based on the number of accidents that have occurred for each length of driving time of each vehicle.

In the method of operating an information processing system including one or more computing devices each including a processor according to an embodiment of the present invention, vehicle information including GPS data, speed data, and driving time data from the vehicle by a receiving circuit Receiving data, in the processor, calculating a static safety index based on accident record data of the vehicle, in the processor, based on the vehicle information data, a speed index, an acceleration index, a deceleration index, and a driving time of the vehicle calculating, in the processor, one or more weights based on accident record data of the vehicle, in the processor, calculating a dynamic safety index based on a speed index, an acceleration index, a deceleration index, and one or more weights Step, in the processor, calculating the workload safety index based on the probability of occurrence of an accident for each length of driving time of the vehicle, and calculating the overall safety index based on the static safety index, the dynamic safety index, and the workload safety index step, wherein one or more weights are arithmetic in correspondence with some or all of the speed index, the acceleration index, and the deceleration index.

In an embodiment, the method further includes transmitting, from the information processing system, at least one of a static safety index, a dynamic safety index, a workload safety index, and a comprehensive safety index, to the driver of the vehicle.

As an embodiment, in the step of receiving the vehicle information data by the receiving circuit, the vehicle information data is received from the two-wheeled vehicle.

According to an embodiment of the present invention, the information processing system may provide information for reducing vehicle accidents.

1 is a block diagram illustrating an information processing system and vehicles according to an embodiment of the present invention.
2 is a block diagram illustrating a system for calculating a safety index according to an embodiment of the present invention.
3 is a table for showing the accident rate by city.
4 is a table for showing the monthly accident rate.
5 is a table for showing the accident rate by day of the week.
6 is a table for showing the accident rate for each time period.
7 is a block diagram for explaining the provision of safety index information of the safety index calculation system according to an embodiment of the present invention.
8 is a flowchart for explaining the calculation of safety index information in the information processing system of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the sizes of the components are enlarged than the actual size for clarity of the present invention. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof. Also, when a part of a layer, film, region, plate, etc. is said to be “on” another part, this includes not only the case where the other part is “directly on” but also the case where there is another part in between. Conversely, when a part, such as a layer, film, region, or plate, is “under” another part, this includes not only the case where the other part is “directly under” but also the case where there is another part in between.

1 is a block diagram illustrating an information processing system and vehicles according to an embodiment of the present invention. Referring to FIG. 1 , vehicles 100_1 to 100_q (where q is an integer greater than or equal to 2) may exist outside the information processing system 200 .

For example, each of the vehicles 100_1 to 100_q may include at least one of a two-wheeled vehicle and a four-wheeled vehicle. As an embodiment of the present invention, it is assumed that each of the vehicles 100_1 to 100_q is a two-wheeled vehicle. Each of the vehicles 100_1 to 100_q may be a transport means for transporting at least one of courier service, cargo, and mail.

Each of the vehicles 100_1 to 100_q may include at least one terminal device among a personal digital assistant (PDA) having a global positioning system (GPS) chip, a navigation system, and a GPS receiver. . In addition, drivers who respectively drive the vehicles 100_1 to 100_q may own a wearable device such as a smart phone having a GPS chip and a smart watch. Each of the vehicles 100_1 to 100_q may transmit vehicle information data to the information processing system 200 through the terminal device and/or the wearable device. The vehicle information data may include at least one of speed data, GPS data, and driving time data of each of the vehicles 100_1 to 100_q.

The information processing system 200 may receive vehicle information data from each of the vehicles 100_1 to 100_q. The information processing system 200 may include a safety index calculation system 210 for calculating a safety index based on vehicle information data. The safety index may be an index for determining an accident possibility of drivers of each of the vehicles 100_1 to 100_q. For example, an accident probability of a driver assigned a high safety index may be high.

The information processing system 200 may be implemented with one or more computers. Illustratively, the information processing system 200 is one or more of personal computers, desktops, laptops, tablet computers, and mobile devices. At least one may be implemented. In addition, the information processing system 200 may include a processor. Specifically, a processor may be included in one or more computers. The one or more computers may include storage, and the storage may store software for operating the one or more computers. In addition, the processor may execute software.

The safety index calculation system 210 may calculate a safety index as an index for the probability of occurrence of an accident among drivers of each of the vehicles 100_1 to 100_q. The safety index calculation method of the safety index calculation system 210 will be described in detail with the drawings below. The information processing system 200 may provide the calculated safety index data to drivers and managers of the vehicles 100_1 to 100_q.

The vehicles 100_1 to 100_q and the information processing system 200 may use wireless communication to transmit and receive data. As some examples, wireless communication may include Wireless Wide Area Network (WWAN) communication (eg, Radio Frequency (RF) wireless communication, Institute of Electrical and Electronics Engineers (IEEE) 802.20), Wireless Metropolitan Area Network (WMAN) communication (eg, For example, IEEE 802.16, WiMAX (Worldwide Interoperability for Microwave Access)), WLAN (Wireless Local Area Network) communication (eg, NFC (Near Field Communication), BLE (Bluetooth Low Energy), WiFi (Wireless Fidelity), Ad -Hoc, etc.), and Wireless Personal Area Network (WPAN) communications (eg, IEEE 802.15, Zigbee, Bluetooth, Ultra Wide Band (UWB), Radio Frequency Identification (RFID), Wireless Universal Serial Bus (USB), Z- Wave, body area network, etc.) may be at least one method.

FIG. 2 is a block diagram illustrating the safety index calculation system of FIG. 1 . 1 and 2 , the safety index calculation system 210 includes an accident record database 211 , a receiver 212 , a driving information calculation unit 213 , a safety index calculation unit 214 , and a comprehensive safety index calculation part 215 . As an example, each of the receiver 212 , the driving information calculator 213 , the safety index calculator 214 , and the comprehensive safety index calculator 215 may be implemented in a hardware form, a software form, or a hybrid form. there is.

In a hardware form, each of the receiver 212, the driving information calculating unit 213, the safety index calculating unit 214, and the comprehensive safety index calculating unit 215 is one or more digital and/or It may include analog circuits. In a software form, each of the receiver 212, the information calculating unit 213, the safety index calculating unit 214, and the comprehensive safety index calculating unit 215 is one or more instruction codes configured to perform operations to be described later. codes) may be included. Instruction code may be compiled or interpreted and processed into an instruction set by one or more processors.

The accident record database 211 may include accident record data that has occurred in the past of each of the vehicles 100_1 to 100_q. The accident record data may include information such as the number of accidents, the environment of the road in which the accident occurred, the time of the accident, the vehicle in which the accident occurred, the driver of the vehicle in which the accident occurred, and the like. Illustratively, the accident record database 211 may be updated every set period. The accident record database 211 may be updated by an administrator of the information processing system 200 .

The receiver 212 may receive vehicle information data of each of the vehicles 100_1 to 100_q from the outside. The receiver 212 may be implemented as at least one of a receiving circuit, a converter, a conversion circuit, a modulator, a modulation circuit, a communicator, and/or a communication circuit. The receiver 212 may transmit vehicle information data to the driving information calculator 213 .

The driving information calculator 213 may calculate driving information of each of the vehicles 100_1 to 100_q based on the vehicle information data received from the receiver 212 . The driving information calculator 213 may include a speed calculator 213_1 , a rapid deceleration and rapid acceleration calculator 213_2 , and a driving time calculator 213_3 . Each of the speed calculator 213_1 , the rapid deceleration and acceleration calculator 213_2 , and the driving time calculator 213_3 may be implemented in a hardware form, a software form, or a hybrid form.

In a hardware form, each of the speed calculator 213_1 , the rapid deceleration and acceleration calculator 213_2 , and the driving time calculator 213_3 includes one or more digital and/or analog circuits to perform operations to be described later. can do. In the software form, each of the speed calculator 213_1, the rapid deceleration and acceleration calculator 213_2, and the driving time calculator 213_3 may include one or more instruction codes configured to perform operations to be described later. . Instruction code may be compiled or translated and processed into an instruction set by one or more processors.

Based on the vehicle information data, the speed calculator 213_1 may calculate information on whether each of the vehicles 100_1 to 100_q complied with a prescribed speed. Specifically, when each of the vehicles 100_1 to 100_q travels at a speed exceeding the prescribed speed of the road, the speed calculator 213_1 may count the number of times the vehicle 100_1 to 100_q exceeds the prescribed speed. The speed calculator 213_1 may output the counted number as a speed index. Illustratively, the speed index may be output every time it is counted or output every period of a set time. Alternatively, the speed index may be output when a predetermined count value is reached.

When each of the vehicles 100_1 to 100_q travels at a speed less than or equal to the prescribed speed of the road, the speed calculator 213_1 may output a value of '0' or may not perform a count operation. The speed calculator 213_1 may transmit the speed indices to the safety index calculator 214 . The speed index may be an index for determining the possibility of an accident of drivers of each of the vehicles 100_1 to 100_q. For example, an accident probability of a driver assigned a high speed index may be high.

Based on the vehicle information data, the rapid deceleration and rapid acceleration calculation unit 213_2 may calculate information on whether each of the vehicles 100_1 to 100_q has rapidly decelerated or rapidly accelerated. When the speed of each of the vehicles 100_1 to 100_q is accelerated to be greater than or equal to the specified speed for the reference time, the rapid deceleration and rapid acceleration calculation unit 213_2 may determine that the vehicles 100_1 to 100_q have accelerated rapidly. The rapid deceleration and rapid acceleration calculation unit 213_2 may count the number of times of rapid acceleration. The rapid deceleration and rapid acceleration calculation unit 213_2 may output the count result as an acceleration index.

When the speed of each of the vehicles 100_1 to 100_q is decelerated by more than the specified speed for the reference time, the rapid deceleration and acceleration calculation unit 213_2 may determine that the vehicles 100_1 to 100_q have rapidly decelerated. The rapid deceleration and rapid acceleration calculation unit 213_2 may count the number of times of rapid deceleration. The rapid deceleration and rapid acceleration calculation unit 213_2 may output the count number as a deceleration index. Each of the acceleration index and the deceleration index may be outputted every time it is counted or may be outputted every period of a set time. Alternatively, each of the speed index and the deceleration index may be output when a predetermined count value is reached.

The acceleration index and the deceleration index may be indices for determining the possibility of an accident of drivers of each of the vehicles 100_1 to 100_q. For example, an accident probability of a driver who is assigned a high acceleration index and a high deceleration index may be high.

If each of the vehicles 100_1 to 100_q does not rapidly accelerate or decelerate, the rapid deceleration and rapid acceleration calculation unit 213_2 may or may not output a value of '0'. The rapid deceleration and rapid acceleration calculation unit 213_2 may output the acceleration index and the deceleration index to the safety index calculation unit 214 .

Based on the vehicle information data, the driving time calculator 213_3 may calculate the driving time for each of the vehicles 100_1 to 100_q for one day. The driving time calculator 213_3 may calculate the driving time of each of the vehicles 100_1 to 100_q and transmit the calculated driving time to the safety index calculator 214 .

The driving information calculator 213 may output the GPS information of each of the vehicles 100_1 to 100_q together with the speed index, the acceleration index, the deceleration index, and the driving time. The GPS information may be information received from each of the vehicles 100_1 to 100_q outside the information processing system 200 .

The safety index calculation unit 214 may include a static safety index calculation unit 214_1 , a dynamic safety index calculation unit 214_2 , and a workload safety index calculation unit 214_3 . The static safety index calculator 214_1 , the dynamic safety index calculator 214_2 , and the workload safety index calculator 214_3 may be implemented in hardware form, software form, or hybrid form.

In the hardware form, the safety index calculation unit 214 includes a static safety index calculation unit 214_1 , a dynamic safety index calculation unit 214_2 , and a workload safety index calculation unit 214_3 each to perform operations to be described later. The above digital and/or analog circuits may be included. In the software form, the safety index calculation unit 214 is configured to perform the operations to be described later, each of the static safety index calculation unit 214_1, the dynamic safety index calculation unit 214_2, and the workload safety index calculation unit 214_3 It may include one or more instruction codes. Instruction code may be compiled or translated and processed into an instruction set by one or more processors.

The static safety index calculator 214_1 may receive past accident record data of each of the vehicles 100_1 to 100_q from the accident record database 211 . Based on the past accident record data, the static safety index calculator 214_1 may calculate a safety index for each branch, a monthly safety index, a safety index for each day of the week, and a safety index for each time period.

The calculation of the safety index for each branch is described with reference to FIG. 3 . 3 is a table for showing the accident rate for each branch. 2 and 3 , it is assumed that the plurality of branch offices (branch A to branch I) owns the plurality of vehicles 100_1 to 100_q.

The table shown in FIG. 3 shows a plurality of branches (branch A to branch I) information, a plurality of vehicles (N1 to N9) information owned by each of a plurality of branches (branch A to I), and the number of accidents (K1 to K9). ) information, and accident rate (K1/N1 to K9/N9) information. The plurality of branches (branch A to branch I) may correspond to each of the nine cities of the Republic of Korea (Seoul, Gyeongin, Busan, Chungcheong, Jeonnam, Gyeongbuk, Jeonbuk, Gangwon, and Jeju). The number of the plurality of branches (branch A to branch I) is not limited to nine. The number of branches may be greater than nine or fewer than nine.

The accident rate can be calculated based on the number of accidents to the number of people. For example, the accident rate (K1/N1) of branch A may be a value obtained by dividing the number of accidents (K1) of branch A by the number of vehicles (N1). Accident rates (K2/N2 to K9/N9) of branches B to I may also be calculated in the same way as or similar to the accident rate (K1/N1) of branch A.

The static safety index calculator 214_1 may calculate a safety index for each branch based on accident rates K1/N1 to K9/N9 of a plurality of branches (branch A to branch I). For example, each of the safety indices a1 to a9 for each branch may be calculated based on the accident rate of each branch compared to the overall accident rate. The safety index (a1) of Branch A is the value obtained by dividing the accident rate (K1/N1) of Branch A by the sum of all accident rates (K1/N1+...+K9/N9). The safety indices a2 to a9 of the branches B to I may be calculated in the same way as or similar to the safety index a1 of the A branch.

The calculation of the monthly safety index is described with reference to FIG. 4 . 4 is a table for showing the monthly accident rate. 4 may include information on the number of monthly accidents M1 to M12 of a plurality of branches (branch A to branch I).

2 and 4 , the static safety index calculator 214_1 may calculate a plurality of monthly safety indices m1 to m12 of a plurality of branches (branch A to branch I). For example, the safety index (m1) for January is a value obtained by dividing the number of accidents in January (M1) of a plurality of branches (branches A to I) by the sum of the total number of accidents (M1+...+M12). The monthly safety indices m2 to m12 of the remaining months (February to December) may be calculated in the same way as or similar to the safety index m1 in January.

The calculation of the daily safety index is described with reference to FIG. 5 . 5 is a table for showing the daily accident rate. 5 may include information on the number of accidents W1 to W12 per day of a plurality of branches (branch A to branch I).

2 and 5 , the static safety index calculator 214_1 may calculate a plurality of daily safety indices w1 to w5 of a plurality of branches (branch A to branch I). For example, Monday's safety index w1 is a value obtained by dividing the number of accidents (W1) on Monday of a plurality of branches (branches A to I) by the sum of the total number of accidents (W1+...+W5). The daily safety indices w2 to w5 of the remaining days (Tuesday to Friday) may be calculated in the same way as or similar to the safety index w1 of Monday.

Calculation of the safety index for each time period will be described with reference to FIG. 6 . 6 is a table for showing the accident rate for each time period. 6 may include information on the number of accidents (P1 to Pn, n is an integer greater than or equal to 2) of a plurality of branch offices (branch A to branch I) for each time period.

2 and 6 , the static safety index calculator 214_1 may calculate the safety indices p1 to pn for a plurality of time zones of a plurality of branches (branch A to branch I). Illustratively, the safety index p1 of the first time period (T0≤T<T1) is the total number of accidents (P1) in the first time period (T0≤T<T1) of a plurality of branches (branch A to branch I) It is the value divided by the sum of the number of accidents (P1+…+Pn). The daily safety indices w2 to w5 in the remaining time zones (T1≤T<T2 to Tn-1≤T≤Tn) may be calculated in the same way as or similar to Monday's safety index w1.

As described with reference to FIGS. 2 to 6 , the static safety index is branch-specific safety indices (a1 to a9), monthly safety indices (m1 to m12), daily safety indices (w1 to w5), and time zone It may be calculated based on the star safety indices p1 to pn. Illustratively, the static safety index is branch-specific safety indices (a1 to a9), monthly safety indices (m1 to m12), daily safety indices (w1 to w5), and time-specific safety indices (p1 to pn) may be the sum of The present invention is not limited thereto, and the static safety index may be calculated in various ways. Illustratively, the static safety index is branch-specific safety indices (a1 to a9), monthly safety indices (m1 to m12), daily safety indices (w1 to w5), and time-specific safety indices (p1 to pn) It may be a value obtained by summing the respective average values or a value obtained by multiplying the average values. Alternatively, the static safety index is some of the branch safety indices (a1 to a9), monthly safety indices (m1 to m12), daily safety indices (w1 to w5), and time-specific safety indices (p1 to pn) It may be a value obtained by selectively summing the values.

The dynamic safety index calculator 214_2 calculates speed data, prescribed speed data, acceleration data, deceleration data, GPS data, number of sudden stops, and / Alternatively, a dynamic safety index may be calculated based on various data such as the number of sudden starts. The dynamic safety index calculation unit 214_2 according to an embodiment of the present invention may calculate a dynamic safety index using speed data, acceleration data, deceleration data, and/or GPS data of each of the vehicles 100_1 to 100_q. there is.

In order to calculate the dynamic safety index, the dynamic safety index calculator 214_2 may calculate the dynamic safety index based on vehicle information data currently received while driving. In order to calculate the dynamic safety index, the dynamic safety index calculation unit 214_2 may receive accident record data from the accident record database 211 . The dynamic safety index calculator 214_2 may receive the speed index from the speed calculator 213_1 . In addition, the dynamic safety index calculator 214_2 may receive an acceleration index and/or a deceleration index from the rapid deceleration and rapid acceleration calculator 213_2 .

The dynamic safety index calculation unit 214_2 may calculate the dynamic safety index as shown in Equation (1).

Referring to Equation 1, the dynamic safety index may be a sum of a speed safety index, an acceleration index, and a deceleration index to which weights α, β, and γ are respectively assigned. The method of obtaining the dynamic safety index of the present invention is not limited to Equation 1. The dynamic safety index calculator 214_2 may assign the weights α, β, and γ to the speed index, the acceleration index, and the deceleration index in various ways. For example, the dynamic safety index may be a sum of the weights α, β, and γ, a speed safety index, an acceleration index, and a deceleration index. Alternatively, the dynamic safety index may be a value obtained by multiplying values obtained by summing the weights α, β, and γ with a speed safety index, an acceleration index, and a deceleration index, respectively.

Each of the weights α, β, and γ may be determined based on accident record data received from the accident record database 211 . The accident record database 211 may include information on the number of fatalities by road type. Information on the number of deaths by road type may be provided by the National Police Agency. The accident record database 211 may include information on the number of accidents in each of the rapid acceleration section and the rapid deceleration section.

For example, the first weight α may be calculated based on the mortality rate for each road type. The first weight α may be calculated based on Table 1.

road type number of accidents number of deaths curve, curve 14,621 988 Straight 197,387 4,057

Table 1 may include information on the number of accidents and deaths by road type that occurred in one year. For example, the number of accidents on the curved road may be 14,621, and the number of fatalities may be 988. And, the number of accidents on a straight road may be 197,387, and the number of deaths may be 4,057. The number of accidents and fatalities may vary from year to year.

The mortality rate on the curved road is the number of deaths divided by the number of accidents (988/14621), and may be about 0.07. The mortality rate on a straight road is the number of deaths divided by the number of accidents (4057/197387), and may be about 0.02.

For example, based on the mortality rate (0.02) of the straight road, the first weight (α) may be calculated. The mortality rate (0.02) of the straight road may be converted to '1' as the reference value of the first weight α. The first weight α for the mortality rate (0.07) of the curved road may be calculated based on the mortality rate (0.02) of the straight road. For example, the first weight α on the curved road may be a value (3.5) obtained by dividing the mortality rate (0.07) of the curved road by the mortality rate (0.02) of the straight road.

The present invention is not limited thereto, and the first weight α may be calculated based on the mortality rate (0.07) of the curved road. The mortality rate (0.07) of the curved road may be converted to '1' as a reference value of the first weight α. The first weight α for the mortality rate (0.02) of the straight road may be calculated based on the mortality rate (0.07) of the curved road. For example, the first weight α on the straight road may be a value (0.29) obtained by dividing the mortality rate (0.02) of the straight road by the mortality rate (0.07) of the curved road.

The second weight β may be calculated based on the number of accidents compared to the number of rapid acceleration sections. For example, the rapid acceleration section may be an entrance section of a highway. For example, the accident rate in the rapid acceleration section may be a value obtained by dividing the number of accidents in the rapid acceleration section by the number of the rapid acceleration section. The third weight γ may be calculated based on the number of accidents compared to the number of rapid deceleration sections. For example, the rapid deceleration section may be the last section of the highway. For example, the accident rate in the rapid deceleration section may be a value obtained by dividing the number of accidents in the rapid deceleration section by the number of the rapid deceleration section.

For example, the dynamic safety index calculator 214_2 may obtain the second and third weights β and γ based on the accident rate in the rapid acceleration section. Based on the accident rate in the rapid acceleration section, the second weight β may be converted to '1'. Accordingly, the third weight γ may be converted into a value obtained by dividing the accident rate in the rapid deceleration section by the accident rate in the rapid acceleration section.

The present invention is not limited thereto, and the dynamic safety index calculator 214_2 may obtain the second and third weights β and γ for the accident rate in the rapid deceleration section. Based on the accident rate in the rapid deceleration section, the third weight γ may be converted to '1'. In order to convert the second weight β based on the converted third weight γ, the second weight β may be calculated as a value obtained by dividing the accident rate in the rapid acceleration section by the accident rate in the rapid deceleration section.

The weights α, β, γ may be calculated based on accident record data. The dynamic safety index calculator 214_2 may multiply the weights α, β, and γ with a speed index, an acceleration index, and a deceleration index, respectively. The dynamic safety index calculator 214_2 may calculate the dynamic safety index by summing all multiplied values.

The workload safety index calculation unit 214_3 may calculate the workload safety index based on the driving time data. The workload safety index calculator 214_3 may receive information about the driving time of each of the vehicles 100_1 to 100_q from the driving time calculator 213_3 . The workload safety index may mean a degree of safety calculated based on the time the driver has driven the vehicle for one day. The workload safety index may be calculated based on the accident rate for each vehicle operating time. The accident rate for each vehicle driving time can be explained through Table 2. Table 2 exemplifies the results of a study on the relationship between driving time and accident rate published by Goode in 2003. Information included in Table 2 may be received from the accident record database 211 .

Travel time (length of time) accident rate 1st run time (1-3) 7.9 2nd run time (4-6) 8.4 3rd run time (7-9) 11.1 4th running time (10-12) 16.5 5th run time (13+) 56.2

Table 2 exemplarily shows accident rate information according to driving time. Referring to FIG. 2 , as the length of the driving time of the vehicle increases, the accident rate tends to increase. In an embodiment of the present invention, in order to calculate the workload safety index, the workload safety index calculation unit 214_3 may convert one of a plurality of accident rates into a reference value. And, in order to calculate the workload safety index, the workload safety index calculation unit 214_3 may consider only the driving time (hour) of the vehicle. This is an embodiment of the present invention, and the workload safety index calculating unit 214_3 may calculate the safety index by considering all of the vehicle's operating hours (hours), minutes (minutes), and seconds (seconds).

For example, the workload safety index calculator 214_3 may convert the accident rate 7.9 of the first operating time 1-3 into a reference workload safety index '1'. The workload safety index calculator 214_3 may convert the remaining accident rates (8.4, 11.1, 16.5, 56.2) into a workload safety index based on the reference workload safety index '1'.

Illustratively, the workload safety index of the second driving time (4-6) is obtained by dividing the accident rate (11.1) of the second driving time (4-6) by the accident rate (8.4) of the first driving time (1-3) may be the value (1.32). In this way, it is possible to calculate the work load safety indices for each of the third to fifth driving times (7-9, ..., 13+).

The workload safety index calculator 214_3 may receive driving time data for each of the vehicles 100_1 to 100_q for one day from the driving time calculator 213_3 . According to the respective driving times of the vehicles 100_1 to 100_q, the workload safety index calculator 214_3 may calculate the workload safety index. The present invention is not limited thereto, and the workload safety index calculator 214_3 may calculate a dynamic safety index based on each of the vehicles 100_1 to 100_q operating time zones (morning, afternoon, or evening).

The safety index calculation unit 214 may output the static safety index, the dynamic safety index, and the workload safety index to the overall safety index calculation unit 215 .

The overall safety index calculation unit 215 may receive the static safety index, the dynamic safety index, and the workload safety index from the safety index calculation unit 214 . For example, in the same way as in Equation 2, the overall safety index calculation unit 215 may calculate the overall safety index. Equation 2 is an example for calculating the overall safety index. Therefore, the method of calculating the overall safety index of the present invention is not limited to Equation (2). The overall safety index can be calculated by combining the static safety index, the dynamic safety index, and the workload safety index in various ways.

In this way, the safety index calculation system 210 may calculate a comprehensive safety index using past accident record data and vehicle information data of each of the vehicles 100_1 to 100_q. The safety index calculation system 210 provides at least one of a static safety index, a dynamic safety index, a workload safety index, and a comprehensive safety index to the drivers of the vehicles 100_1 to 100_q and the vehicles 100_1 to 100_q. can Drivers given a high overall safety index may be more likely to cause an accident. Accordingly, drivers of the vehicles 100_1 to 100_q may refer to the static safety index, the dynamic safety index, the workload safety index, and the overall safety index, and may reduce the accident rate.

7 is a block diagram for explaining the provision of safety index information of the safety index calculation system according to an embodiment of the present invention. 1 to 7 , the safety index calculation system 210 may receive vehicle information data, and may calculate a static safety index, a dynamic safety index, a workload safety index, and a comprehensive safety index. The safety index calculation method of the safety index calculation system 210 may be the same as or similar to the method described in FIGS. 1 to 6 .

In addition, the safety index calculation system 210 may store the calculated static safety index, dynamic safety index, workload safety index, and overall safety index in the safety index database 220 . Also, the driver database 230 may include information on drivers of each of the vehicles 100_1 to 100_q.

The safety index calculation system 210 may output safety index information. The safety index information may include at least one of a static safety index, a dynamic safety index, a workload safety index, and a comprehensive safety index. The safety index calculation system 210 may output the safety index information together with the driver information of the driver database 230 . The safety index calculation system 210 may periodically output the safety index information, and may output it according to an external request.

The safety index calculation system 210 may provide safety index information to a driver and/or a manager of each of the vehicles 100_1 to 100_q. For example, the safety index calculation system 210 may transmit safety index information to at least one terminal device among a PDA, a navigation system, and a GPS receiver of each of the vehicles 100_1 to 100_q. In addition, the safety index calculation system 210 may transmit safety index information to wearable devices such as smart phones and smart watches of drivers driving the vehicles 100_1 to 100_q.

8 is a flowchart for explaining the calculation of safety index information in the information processing system of the present invention. 1 to 8 , the information processing system 200 may receive vehicle information data (S110). The information processing system 200 may receive vehicle information data including vehicle driving information from each of the vehicles 100_1 to 100_q. For example, vehicle driving information of each of the vehicles 100_1 to 100_q may include GPS data, speed data, and driving time data.

The information processing system 200 may calculate a static safety index, a dynamic safety index, and a workload safety index based on the vehicle information data (S120). Since the method of calculating the static safety index, the dynamic safety index, and the workload safety index of the information processing system 200 has been described with reference to FIGS. 2 to 6 , a detailed description thereof will be omitted.

The information processing system 200 may calculate a comprehensive safety index based on the static safety index, the dynamic safety index, and the workload safety index (S130). The information processing system 200 may output the calculated overall safety index to the outside. For example, the information processing system 200 may transmit the calculated overall safety index to at least one of a driver of each of the vehicles 100_1 to 100_q and a management system for managing the vehicles 100_1 to 100_q.

The information processing system 200 may reduce the accident rate of the vehicles 100_1 to 100_q by calculating the static safety index, the dynamic safety index, the workload safety index, and the overall safety index.

As described above, an optimal embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are only used for the purpose of describing the present invention and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, it will be understood by those of ordinary skill in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

100_1~100_q: vehicles
200: information processing system
210: safety index calculation system
211: accident record database
213: driving information calculating unit
214: safety index calculation unit
215: Comprehensive safety index calculation unit
220: safety index database
230: driver database

Claims (12)

a static safety index calculator for calculating a static safety index based on accident record data of each vehicle;
a driving information calculating unit for calculating a speed index, an acceleration index, a deceleration index, and a driving time of each of the vehicles based on the vehicle information data of each of the vehicles;
a dynamic safety index calculator for calculating one or more weights based on the accident record data and calculating a dynamic safety index based on the one or more weights and the speed index, the acceleration index, and the deceleration index;
a workload safety index calculation unit for calculating a workload safety index according to the accident rate of each of the vehicles based on the driving time; and
Based on the static safety index, the dynamic safety index, and the workload safety index, including a comprehensive safety index calculation unit for calculating a comprehensive safety index,
the one or more weights are arithmetic corresponding to some or all of the speed index, the acceleration index, and the deceleration index;
The overall safety index is an information processing system calculated according to Equation 1.
(Formula 1)
Comprehensive safety index = ((1 + static safety index) * dynamic safety index) + workload safety index The method of claim 1,
The accident record data includes an accident rate of the vehicles owned in each of a plurality of branches, and a monthly accident rate of all vehicles owned in the plurality of branches, an accident rate by day of the week, and accident rate data by time period. The method of claim 1,
The vehicle information data includes GPS data, speed data, and travel time data of each of the vehicles. 4. The method of claim 3,
The driving information calculating unit:
a speed calculator for counting the number of times the vehicle exceeds a prescribed speed based on the GPS data and the speed data of each of the vehicles, and outputs the number of times exceeding the prescribed speed as the speed index; and
Count the number of times each of the vehicles accelerated above the specified speed during the first reference time and the number of decelerations below the specified speed during the second reference time based on the GPS data and the speed data of each of the vehicles, , Information including a rapid deceleration and rapid acceleration calculation unit for outputting the number of times of acceleration above the specified speed during the reference time as the acceleration index, and outputting the number of times of deceleration below the specified speed during the reference time as a listener speed index processing system. 5. The method of claim 4,
The dynamic safety index calculator calculates the weights corresponding to the speed index, the acceleration index, and the deceleration index, respectively. 6. The method of claim 5,
The dynamic safety index calculation unit calculates a first weight corresponding to the speed index based on the GPS data, the number of accidents by road type and the number of deaths data, and a first weight corresponding to the acceleration index based on the number of accidents compared to the rapid acceleration section An information processing system for calculating a second weight and calculating a third weight corresponding to the deceleration index based on the number of accidents compared to the rapid deceleration section. The method of claim 1,
and the accident record data is updated by a manager of the information processing system. The method of claim 1,
The information processing system that the overall safety index calculation unit calculates the overall safety index in response to a request external to the information processing system. The method of claim 1,
The workload safety index calculation unit is an information processing system for calculating the accident rate of each of the vehicles as the workload safety index based on the number of accidents occurring for each length of the driving time of each of the vehicles. A method of operating an information processing system comprising one or more computing devices, each comprising a processor, the method comprising:
receiving, by a receiving circuit included in the information processing system, vehicle information data including GPS data, speed data, and travel time data from the vehicle;
calculating, in the processor, a static safety index based on the accident record data of the vehicle;
calculating, in the processor, a speed index, an acceleration index, a deceleration index, and a driving time of the vehicle based on the vehicle information data;
calculating, in the processor, one or more weights based on the accident record data of the vehicle;
calculating, in the processor, a dynamic safety index based on the speed index, the acceleration index, the deceleration index, and the one or more weights;
calculating, in the processor, a workload safety index based on the probability of occurrence of an accident for each length of the driving time of the vehicle; and
Comprising the step of calculating a comprehensive safety index based on the static safety index, the dynamic safety index, and the workload safety index,
the one or more weights are arithmetic corresponding to some or all of the speed index, the acceleration index, and the deceleration index;
The overall safety index is calculated according to Equation 1.
(Formula 1)
Comprehensive safety index = ((1 + static safety index) * dynamic safety index) + workload safety index 11. The method of claim 10,
transmitting, from the information processing system, at least one of the static safety index, the dynamic safety index, the workload safety index and the overall safety index to a driver of the vehicle. 11. The method of claim 10,
In the step of receiving the vehicle information data by the receiving circuit, the vehicle information data is received from a two-wheeled vehicle.

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