WO2022202192A1 - 犯罪防止装置及び犯罪防止方法 - Google Patents
犯罪防止装置及び犯罪防止方法 Download PDFInfo
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- WO2022202192A1 WO2022202192A1 PCT/JP2022/009153 JP2022009153W WO2022202192A1 WO 2022202192 A1 WO2022202192 A1 WO 2022202192A1 JP 2022009153 W JP2022009153 W JP 2022009153W WO 2022202192 A1 WO2022202192 A1 WO 2022202192A1
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- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
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- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
- G08G1/202—Dispatching vehicles on the basis of a location, e.g. taxi dispatching
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- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/103—Static body considered as a whole, e.g. static pedestrian or occupant recognition
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- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
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Definitions
- This disclosure relates to crime prevention devices and crime prevention methods.
- Patent Document 1 information on the outside of a plurality of moving bodies that automatically patrol based on an operation command is acquired, and based on the information acquired by each of the moving bodies that have moved in the same area, a patrol command for each area is described, and an automatic driving system is described that generates an operation command according to the determined patrol policy of the area.
- the automatic driving system described in Patent Document 1 acquires the number of people as external information, and determines a patrol policy so that the frequency of patrols is higher in areas with fewer people than in areas with more people. do.
- vehicle traffic volume the attributes of people and the traffic volume of vehicles (hereinafter referred to as vehicle traffic volume) are not considered. For this reason, it is possible to detect situations where pedestrians are at high risk of being involved in crimes, such as people who are more likely to be involved in crimes, such as children or the elderly, walking in an area with less vehicle traffic. , such situations cannot be traversed preferentially.
- An object of the embodiments is to provide a crime prevention device and a crime prevention method that can more effectively prevent crimes by using mobile objects.
- a pedestrian detection unit that receives a captured image transmitted from a vehicle, detects a pedestrian from the captured image, a pedestrian attribute estimation unit that estimates the attribute of the pedestrian from the captured image, and an imaging
- a pedestrian progress area estimator for estimating a pedestrian progress area based on an image
- a vehicle traffic volume calculator for calculating a vehicle traffic volume within the pedestrian progress area
- pedestrian attributes and pedestrian progress A risk calculation unit that calculates the risk of a pedestrian being involved in a crime based on the amount of vehicle traffic in the area, and if the risk is higher than a preset threshold, the pedestrian movement area is commanded to patrol.
- a patrol command unit that transmits a patrol command to a mobile body.
- an imaged image transmitted from a vehicle is received, a pedestrian is detected from the imaged image, attributes of the pedestrian are estimated from the imaged image, and the pedestrian progresses based on the imaged image.
- Estimate the area calculate the amount of vehicle traffic in the area where pedestrians are traveling, and calculate the risk of pedestrians being involved in crime based on the attributes of pedestrians and the amount of vehicle traffic in the area where pedestrians are traveling.
- a crime prevention method is provided for sending a patrol command to patrol a pedestrian travel area when the degree is higher than a preset threshold.
- the crime prevention device and crime prevention method it is possible to more effectively prevent crimes by using mobile objects.
- FIG. 1 is a diagram showing a schematic configuration of a crime prevention system 1 including a crime prevention device according to one embodiment.
- FIG. 2 is a block diagram showing a configuration example of the crime prevention system 1 shown in FIG.
- FIG. 3 is a diagram for explaining the main storage contents of the position information database 221 provided in the storage device 22.
- FIG. 4 is a diagram for explaining the main storage contents of the attribute information database 222 provided in the storage device 22.
- FIG. 5 is a diagram for explaining the main stored contents of the risk value database 223 provided in the storage device 22.
- FIG. 6 is a diagram for explaining the functions of the crime prevention device according to one embodiment.
- FIG. 7 is a flowchart illustrating an operation example of the crime prevention device according to one embodiment.
- FIG. 1 is a diagram showing a schematic configuration of a crime prevention system 1.
- the crime prevention system 1 includes a vehicle 40 traveling on a road, a plurality of automatically driving vehicles 50 that autonomously travel based on given patrol instructions, and transmissions from the vehicle 40 and the automatically driving vehicle 50 and a server 20 that collects and manages information and issues patrol commands to the autonomous vehicle 50 .
- the crime prevention device is implemented as a CPU (Central Processing Unit) 23 of the server 20 .
- CPU Central Processing Unit
- the server 20 and the vehicle 40 and the server 20 and the plurality of automatically driven vehicles 50 are interconnected by the network 30.
- the server 20, the vehicle 40, and the automatic driving vehicle 50 are connected with the network 30 by a wireless communication system.
- the crime prevention system 1 shown in FIG. 1 illustratively includes one vehicle 40 and two automatically-operated vehicles 50, but the number of vehicles 40 may be two or more, and the number of automatically-operated vehicles may be two or more. 50 may be three or more.
- the number of vehicles 40 and automatically driven vehicles 50 is not particularly limited.
- the plurality of automated driving vehicles 50 may be, for example, vehicles that patrol the road according to a predetermined patrol route for crime prevention measures, etc., or may wait at a predetermined waiting place and start patrol in response to a patrol command.
- the server 20 may be mounted on the vehicle 40 or the automatically driving vehicle 50, and the server 20 may be integrated with the vehicle 40 or the automatically driving vehicle 50.
- the vehicle 40 acquires captured images while traveling.
- the vehicle 40 may further acquire information related to crime prevention, such as information on the brightness of lights at night, while the vehicle 40 is running.
- the captured image and various information acquired by the vehicle 40 are transmitted to the server 20 .
- the vehicle 40 may be a manually operated vehicle driven by a driver, or may be an automatically operated vehicle.
- the server 20 detects a pedestrian from the captured image transmitted from the vehicle 40 and calculates the risk of the detected pedestrian being involved in a crime.
- the server 20 generates a patrol instruction to patrol the pedestrian movement area of the detected pedestrian when the degree of danger is higher than a predetermined value, and transmits the patrol instruction to the automatic driving vehicle 50 .
- the automatically driven vehicle 50 that has received the patrol command generates an operation plan according to the patrol command, and travels according to this operation plan.
- FIG. 2 is a block diagram schematically showing a configuration example of the crime prevention system 1 shown in FIG. Although one vehicle 40 and one automatic driving vehicle 50 are illustrated in FIG. 2, a plurality of each may be present in practice.
- Crime prevention system 1 according to the present embodiment is configured to identify each of vehicle 40 and automatically-operated vehicle 50 so that each of pre-registered vehicle 40 and automatically-operated vehicle 50 can be individually specified. Manages individual vehicle IDs.
- the crime prevention system 1 may manage the ID of the information transmission device 400 mounted on each vehicle 40 as the vehicle ID of the vehicle 40, and the automatic driving vehicle control device 500 mounted on each automatic driving vehicle 50. The ID may be managed as a vehicle ID of the automatically driven vehicle 50 .
- the server 20 is a device that manages information on the vehicle 40 and a plurality of automatically driven vehicles 50 and sends patrol commands to each of the automatically driven vehicles 50 .
- the server 20 communicates with the vehicle 40 and multiple autonomous vehicles 50 via the network 30 .
- the server 20 includes a communication device 21, a storage device 22, a CPU 23, and a memory (not shown), and these components are electrically connected via a bus (not shown).
- the installation location of the server 20 is not particularly limited, the server 20 is installed, for example, in a management center of a business operator who uses an automatic driving vehicle 50 to provide local crime prevention services.
- the server 20, the vehicle 40, and the automated driving vehicle 50 are connected to the network 30 by wireless communication.
- the communication device 21 communicates with the vehicle 40 and the automatically driving vehicle 50 via the network 30.
- the communication device 21 may be, for example, a device equipped with a mobile communication function such as 4G/LTE, or a device equipped with a wireless LAN communication function.
- the storage device 22 stores various information and databases necessary for security services.
- the storage device 22 is a storage medium such as an HDD (Hard Disk Drive).
- the storage device 22 includes, for example, a position information database 221, an attribute information database 222, and a risk value database 223. Details of the various databases will be described later with reference to FIGS.
- the CPU 23 controls the server 20.
- the CPU 23 reads various programs stored in the storage device 22 or the like into memory and executes various instructions included in the programs.
- the memory is a storage medium such as ROM (Read Only Memory) and RAM (Random Access Memory).
- the CPU 23 includes a position information management unit 231, a pedestrian detection unit 232, a pedestrian attribute estimation unit 233, a pedestrian progress area estimation unit 234, a vehicle traffic amount calculation unit 235, and a danger detection unit 235.
- a degree calculation unit 236 and a tour command unit 237 are provided. Details of each function of the CPU 23 will be described later with reference to FIG.
- the vehicle 40 is equipped with an information transmission device 400 including a communication device 41, a camera 42, a storage device 43, and a GPS receiver 44.
- an information transmission device 400 including a communication device 41, a camera 42, a storage device 43, and a GPS receiver 44.
- the communication device 41 has the same configuration as the communication device 21 and communicates with the server 20 via the network 30 .
- the camera 42 is imaging equipment that captures an image of the exterior of the vehicle 40 .
- the camera 42 captures an image of a subject using an imaging device such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.
- An image obtained by imaging may be either a still image or a moving image.
- the camera 42 is provided behind the windshield of the vehicle 40 , for example, and captures at least the traveling direction (forward) of the vehicle 40 , but the direction captured by the camera 42 is not limited to a specific direction. Orientation may be imaged.
- a captured image captured by the camera 42 is stored in the storage device 43 and transmitted to the server 20 at an arbitrary timing.
- the storage device 43 stores various information.
- the storage device 43 is any storage medium such as RAM, magnetic disk, flash memory, and the like.
- the position information of the vehicle 40 acquired by the GPS receiver 44 is transmitted to the server 20 at any timing.
- the GPS receiver 44 receives signals from a plurality of satellites, supplies the received signals to a CPU (not shown) mounted on the GPS receiver 44, and calculates position information of the vehicle 40 on the ground.
- GPS is an abbreviation for "Global Positioning System”.
- the self-driving vehicle 50 is a vehicle that autonomously travels based on patrol instructions received from the server 20 .
- the autonomous driving vehicle 50 is equipped with an autonomous driving vehicle control device 500 including a communication device 51 , a camera 52 , a storage device 53 , a GPS receiver 54 , and a vehicle ECU (Electronic Control Unit) 55 . Since the configurations of the communication device 51, the camera 52, the storage device 53 and the GPS receiver 54 are the same as the configurations of the communication device 41, the camera 42, the storage device 43 and the GPS receiver 44 of the information transmission device 400 of the vehicle 40, Description is omitted.
- the vehicle ECU 55 is a computer for controlling the traveling of the automatically driven vehicle 50.
- the vehicle ECU 55 receives a patrol command from the server 20 via the network 30, and controls the autonomous vehicle 50 to run in an appropriate manner based on the received patrol command.
- the vehicle ECU 55 controls various actuators (brake actuator, accelerator actuator, steering actuator, etc.) based on the patrol command.
- the storage device 22 may further include a database for managing vehicle IDs and vehicle information of vehicles to which the vehicle IDs are assigned. , the vehicle 40 and the automatically driven vehicle 50 can be identified.
- the location information database 221 is a database that manages the location information of each of the vehicle 40 and the autonomous vehicle 50. As shown in FIG. 3 as an example, the position information database 221 includes the vehicle IDs of the vehicle 40 and the automatically driving vehicle 50, and the position coordinate information received from each of the vehicle 40 and the automatically driving vehicle 50. Configured to be stored in real time.
- the attribute information database 222 stores information about pedestrians detected from the captured images captured by the vehicle 40 .
- the attribute information database 222 stores, for each pedestrian detected from the captured image, a pedestrian ID, sex, age, presence or absence of a companion, and position coordinates where each pedestrian is detected. Information is configured to be stored.
- a pedestrian's sex and age may be called a pedestrian's attribute.
- a method of detecting a pedestrian and a method of estimating the attributes of the pedestrian and the presence or absence of a companion will be described later.
- the pedestrian's age is stored in four categories: child, adult (young), adult (not young), and elderly, but the pedestrian's age category is not limited to this. .
- the risk value database 223 stores a risk value indicating the level of crime risk under each preset condition for each combination of sex, age, and presence or absence of companions. configured to be For example, the risk value is set to be higher for children and the elderly than for adults, and is set to be higher for women than for men. Moreover, it is set so that the price without a companion is higher than that with a companion. The risk value is set, for example, to be the highest for women, children, and unaccompanied.
- the risk value database 223 stores the walker's gender, age, presence or absence of a companion, for example, 4 points for a child, 3 points for a woman, 2 points for an elderly person, and 2 points for an unaccompanied person. It may be configured to store a preset risk value for each element.
- the method of setting the risk value is not particularly limited, and the degree of risk may be set according to the attributes of the pedestrian based on past crime data.
- automatically driven vehicles 50a to 50c are patrolling an area, a vehicle 40 is traveling on a road, and a pedestrian 60 is present near the vehicle 40.
- the captured image captured by the vehicle 40 includes a pedestrian 60 .
- a vehicle 40 has the configuration of the vehicle 40 shown in FIG.
- the automatically driven vehicles 50a to 50c have the configuration of the automatically driven vehicle 50 shown in FIG.
- the location information management unit 231 of the CPU 23 collects and manages the location information of the pre-registered vehicle 40 and the automatically driven vehicles 50a to 50c.
- the position information management unit 23 receives position information from the vehicle 40 and the automatically driven vehicles 50a to 50c at a predetermined cycle, associates the vehicle ID with the vehicle ID of each of the vehicle 40 and the automatically driven vehicles 50a to 50c, and obtains the position information. Store in the information database 221 .
- the pedestrian detection unit 232 receives the captured image captured by the vehicle 40 transmitted from the vehicle 40, and detects the pedestrian 60 from the captured image. In this embodiment, the pedestrian detection unit 232 detects the pedestrian 60 by analyzing the captured image captured by the vehicle 40 . A known method can be adopted for this image analysis. The pedestrian detection unit 232 detects the position information of the pedestrian 60 based on the position information of the vehicle 40 at the time when the captured image in which the pedestrian 60 is detected is obtained.
- the pedestrian attribute estimation unit 233 estimates the attribute of the pedestrian 60 from the captured image.
- the pedestrian attribute estimation unit 233 estimates whether or not the pedestrian 60 is accompanied by a companion, that is, whether the pedestrian 60 is singular or plural.
- the pedestrian attribute estimation unit 233 estimates the attributes of the pedestrian 60 by further analyzing the captured image in which the pedestrian 60 is detected. A known method can be adopted for this image analysis.
- the pedestrian attribute estimation unit 233 detects the face of the detected pedestrian 60 and estimates the sex and age of the pedestrian 60.
- the pedestrian attribute estimation unit 233 estimates, for example, whether the pedestrian is a child, an adult (young), an adult (not young), or an elderly person.
- the pedestrian attribute estimation unit 233 calculates the height, posture, The hair color, belongings such as a cane, clothes, etc. may be detected, and the gender and age of the pedestrian 60 may be estimated from these factors.
- the captured image is a moving image, the walking speed of the pedestrian 60 may be added to the factors for estimating the gender and age.
- the pedestrian attribute estimation unit 233 stores the estimated attribute of the pedestrian 60, information on the presence or absence of companions, and position information of the pedestrian 60 in the attribute information database 222.
- the pedestrian progress area estimation unit 234 estimates the pedestrian progress area A in which the pedestrian 60 walks based on the captured image. For example, the pedestrian movement area estimation unit 234 estimates the orientation of the body of the pedestrian 60 from the captured image, and estimates the orientation of the body of the pedestrian 60 as the movement direction of the pedestrian. Moreover, when the captured image is a moving image, the pedestrian movement area estimation unit 234 may estimate the direction in which the pedestrian 60 moves as the movement direction of the pedestrian 60 . In this embodiment, the pedestrian movement area estimation unit 234 estimates the movement direction of the pedestrian 60 by further analyzing the captured image in which the pedestrian 60 is detected. A known method can be adopted for this image analysis.
- the pedestrian movement area estimating unit 234 calculates the estimated area of radius X km in the direction of movement of the pedestrian 60 from the point where the pedestrian 60 is detected as a pedestrian movement area in which the pedestrian 60 is assumed to walk. Assume A. For example, the pedestrian movement area estimating unit 234 uses the point where the pedestrian 60 is detected as a reference, and the pedestrian 60 is assumed to walk in the area with a radius of 2 km on the moving direction side of the estimated pedestrian 60. Presumed to be progress area A.
- the method of estimating the pedestrian movement area A is not particularly limited, and it is sufficient, for example, to estimate an area including an area where the pedestrian 60 is expected to walk for 10 to 15 minutes.
- the vehicle traffic volume calculation unit 235 calculates the vehicle traffic volume within the pedestrian progress area A.
- the vehicle traffic amount calculation unit 235 refers to the position information database 221 and calculates the number of vehicles 40 and automatically driving vehicles 50 existing in the pedestrian progress area A as the vehicle traffic amount.
- the vehicle traffic amount calculation unit 235 calculates the number of vehicles 40 and automatically driving vehicles 50 per unit area as the vehicle traffic amount from the number of vehicles 40 and automatically driving vehicles 50 existing in the pedestrian progress area A. You may A method for calculating the amount of vehicle traffic is not particularly limited.
- the vehicle traffic amount calculation unit 235 detects vehicles from captured images transmitted from each of the plurality of vehicles 40 and the plurality of automatically driven vehicles 50 managed by the server 20, and stores the position information of the detected vehicles. By doing so, the amount of vehicle traffic existing within the pedestrian progress area A may be calculated.
- the risk calculation unit 236 calculates the risk of the pedestrian being involved in a crime based on the attributes of the pedestrian 60 and the amount of vehicle traffic in the pedestrian progress area A.
- the risk calculation unit 236 refers to the risk value database 223 and acquires the risk value of the pedestrian 60 based on the attributes of the pedestrian 60 and the presence or absence of companions. For example, when the gender of the pedestrian is "female", the age is "elderly”, and the pedestrian is "unaccompanied”, the risk calculation unit 236 refers to the risk value database 223 of FIG. A risk value of '3' is obtained for 60.
- the risk calculation unit 236 refers to the risk value set in advance for each element such as the pedestrian's gender, age, presence or absence of companions, etc. described in FIG. You may calculate the risk value of the pedestrian 60 by adding .
- the risk calculation unit 236 determines whether or not the amount of vehicle traffic in the pedestrian progress area A is greater than a preset threshold for the amount of vehicle traffic. Then, when the amount of vehicle traffic in the pedestrian progress area A is greater than the threshold, the degree of risk is calculated by multiplying the risk value of the pedestrian 60 by 0.5. On the other hand, when the amount of vehicle traffic in the pedestrian progress area A is equal to or less than the threshold, the degree of risk is calculated by multiplying the risk value of the pedestrian 60 by 1.2. Further, the risk calculation unit 236 may calculate the risk by multiplying the risk value of the pedestrian 60 by the reciprocal of the amount of vehicle traffic per unit area in the pedestrian progress area A, for example.
- the method of calculating the degree of risk is not particularly limited, and the degree of risk calculation unit 236 calculates the degree of risk so that the degree of risk increases when the risk value of the pedestrian 60 is high and the amount of vehicle traffic in the pedestrian progress area A is small. It should be calculated. In addition to the attributes of the pedestrian, the presence or absence of accompanying persons, and the amount of vehicle traffic, other factors such as the place where the pedestrian 60 is detected, the time period, and the illuminance may be used to calculate the degree of risk. In addition, past crime occurrence data may be used to calculate the degree of risk.
- the patrol command unit 237 transmits a patrol command for patrol of the pedestrian progress area A to the automatically driven vehicle 50 when the degree of danger is higher than a preset threshold.
- the patrol commanding unit 237 determines whether or not the risk calculated by the risk calculating unit 236 is higher than a preset risk threshold. Then, when the degree of danger is higher than the threshold, the position information database 221 is referred to, and the automatically driven vehicle 50a that is patrolling the closest position to the pedestrian traveling area A is specified from among the automatically driven vehicles 50a to 50c.
- the patrol command unit 237 generates a patrol command for instructing the autonomous vehicle 50a to patrol the pedestrian traveling area A.
- the patrol command includes a travel route from the identified current position of the automatically driven vehicle 50a to the pedestrian travel area A, and information on a patrol route that patrols the pedestrian travel area A.
- the patrol command unit 237 transmits the generated patrol command to the automatically driven vehicle 50a to command the patrol of the pedestrian travel area A.
- the vehicle 40 transmits the location information of the vehicle 40 and the captured image captured by the vehicle 40 to the server 20 via the network 30 .
- a plurality of automatically driven vehicles 50 a to 50 c transmit position information of each of the automatically driven vehicles 50 a to 50 c to server 20 via network 30 .
- the server 20 collects and manages the location information of the vehicle 40 and the automatically driven vehicles 50a to 50c.
- step S10 of FIG. 7 the pedestrian detection unit 232 receives the captured image captured by the vehicle 40 transmitted from the vehicle 40.
- step S ⁇ b>11 the pedestrian detection unit 232 detects the pedestrian 60 by analyzing the captured image captured by the vehicle 40 .
- step S12 the pedestrian detection unit 232 detects the position information of the vehicle 40 at the time when the captured image in which the pedestrian 60 is detected is acquired. Based on this, the positional information of the pedestrian 60 is detected.
- the process proceeds to step S13, and the pedestrian attribute estimation unit 233 estimates the attributes of the pedestrian 60 from the captured image.
- the pedestrian attribute estimation unit 233 estimates whether or not the pedestrian 60 is accompanied by a companion.
- the pedestrian attribute estimation unit 233 stores the estimated attribute of the pedestrian 60 , information on the presence or absence of companions, and position information of the pedestrian 60 in the attribute information database 222 .
- step S14 the pedestrian movement area estimation unit 234 estimates the orientation of the body of the pedestrian 60 from the captured image, and estimates the orientation of the body of the pedestrian 60 as the movement direction of the pedestrian.
- the pedestrian travel area estimation unit 234 may estimate the direction in which the pedestrian 60 moves as the travel direction of the pedestrian 60 .
- step S15 the pedestrian movement area estimation unit 234 determines that the pedestrian 60 walks in the estimated area of radius X km in the movement direction side of the pedestrian 60 with reference to the point where the pedestrian 60 is detected. It is estimated as the pedestrian progress area A assumed.
- the process proceeds to step S16, and the vehicle traffic amount calculation unit 235 calculates the vehicle traffic amount within the pedestrian progress area A.
- the vehicle traffic amount calculation unit 235 refers to the position information database 221 and calculates the number of vehicles 40 and automatically driving vehicles 50 existing in the pedestrian progress area A as the vehicle traffic amount.
- the vehicle traffic amount calculation unit 235 calculates the number of vehicles 40 and automatically driving vehicles 50 per unit area as the vehicle traffic amount from the number of vehicles 40 and automatically driving vehicles 50 existing in the pedestrian progress area A.
- the process proceeds to step S17, and the risk calculation unit 236 calculates the risk of the pedestrian being involved in a crime based on the attributes of the pedestrian 60 and the amount of vehicle traffic in the pedestrian progress area A.
- the risk calculation unit 236 acquires the risk value of the pedestrian 60 from, for example, the risk value database 223 and the attributes of the pedestrian 60 and the presence or absence of companions.
- the degree-of-risk calculation unit 236 determines whether or not the amount of vehicle traffic in the pedestrian progress area A is greater than a preset threshold for the amount of vehicle traffic. Then, when the amount of vehicle traffic in the pedestrian progress area A is greater than the threshold, the degree of risk is calculated by multiplying the risk value of the pedestrian 60 by 0.5. On the other hand, when the amount of vehicle traffic in the pedestrian progress area A is equal to or less than the threshold, the degree of risk is calculated by multiplying the risk value of the pedestrian 60 by 1.2.
- step S18 the patrol command unit 237 determines whether or not the risk calculated in step S17 is higher than a preset risk threshold. If the degree of risk is higher than the threshold (YES in step S18), the process proceeds to step S19. On the other hand, if the degree of risk is equal to or less than the threshold (NO in step S18), the CPU 23 terminates the processing of FIG.
- step S19 the patrol command unit 237 refers to the position information database 221 and identifies the automatically driven vehicle 50a that is patrolling the position closest to the pedestrian progress area A from among the automatically driven vehicles 50a to 50c.
- the process proceeds to step S20, and the patrol command unit 237 generates a patrol command for instructing the autonomous vehicle 50a to patrol the pedestrian progress area A.
- the patrol command includes the travel route from the current position of the automatically driven vehicle 50a to the pedestrian travel area A, and the information of the patrol route that patrols the pedestrian travel area A.
- step S21 the tour command unit 237 transmits the generated tour command to the automatically driven vehicle 50a identified in step S19, and the CPU 23 ends the process of FIG.
- the automatically driven vehicle 50a receives the patrol command, generates an operation plan according to the received patrol command, and travels according to this operation plan.
- the vehicle traffic amount calculation unit 235 calculates the vehicle traffic amount in the pedestrian progress area A, and the patrol command unit 237 determines that the pedestrian progress area A patrol command for commanding the patrol of A was transmitted to the automatically driven vehicle 50a.
- the vehicle traffic amount calculation unit 235 may divide the pedestrian progress area A into a plurality of areas, and further calculate the vehicle traffic amount in each area of the divided pedestrian progress area A.
- the patrol command unit 237 directs the automated driving vehicle 50a to the divided walking area according to the amount of vehicle traffic in each area of the divided pedestrian progress area A.
- a patrol command may be transmitted to instruct patrol of each of the user progress areas.
- the patrol command unit 237 may adjust the number of vehicles to patrol each of the divided pedestrian progress areas A, for example, based on the amount of vehicle traffic in each of the divided pedestrian progress areas A. good. For example, the patrol command unit 237 determines that the amount of vehicle traffic in one area of the divided pedestrian progress area A is greater than a preset threshold value, and the amount of vehicle traffic in other areas is greater than the preset threshold value. In such a case, it may be unnecessary to patrol an area with a large amount of vehicle traffic. Then, a patrol command for instructing patrols only in areas where the amount of vehicle traffic is small may be transmitted to the two automatically driven vehicles 50a and 50b.
- the patrol command unit 237 may, for example, limit the area to be circulated among the divided pedestrian progress areas A based on the amount of vehicle traffic in each area of the divided pedestrian progress areas A. For example, the tour command unit 237 determines that the amount of vehicle traffic in one of the divided pedestrian progress areas A is greater than a preset threshold value, and that the amount of vehicle traffic in the other area is a preset threshold value. If the number of traffic is less than , the patrol of areas with a large amount of vehicle traffic may be unnecessary. Then, a patrol command may be generated for instructing the autonomous vehicle 50a to patrol only within the other two regions. As a result, when the range of the pedestrian progress area A is set wide, a patrol command can be generated so as to patrol only the area where the amount of vehicle traffic is particularly small, and crime prevention can be performed more efficiently.
- the crime prevention device has been described with an example in which the automatically driven vehicle 50 is used as the moving object that transmits the patrol command.
- a moving object with monitoring capability such as an automatic driving vehicle 50 equipped with a camera
- mobile objects with tracking performance such as drones are suitable for preventing crimes such as snatching.
- the types of crimes that pedestrians are likely to be involved in can be roughly estimated from the attributes of pedestrians. For example, children are more likely to be spoken to and taken around, young women are more likely to be molested, and elderly people and women carrying luggage are more likely to be snatched. It is possible to estimate the types of crimes in which pedestrians are likely to be involved based on the attributes of pedestrians.
- the patrol command unit 237 can patrol based on the type of crime set in advance corresponding to the attribute of the pedestrian.
- the type of mobile body to which the command is to be sent may be determined, and the patrol command may be sent to that mobile body.
- the pedestrian detection unit 232 may detect that an incident such as blackmail, assault, or failure has occurred from the moving image.
- the patrol command unit 237 directs a manned vehicle with a person who can arrest the criminal to the point where the incident is detected.
- a patrol command may be sent instructing the In this way, by transmitting a patrol command to a mobile body that is suitable for the type of crime that the pedestrian is likely to be involved in, as estimated from the attributes of the pedestrian, the mobile body can be used to further effectively prevent crime. can do.
- the patrol command unit 237 determines the number of mobile bodies to which patrol commands are to be sent based on the type of crime set in advance corresponding to the attributes of the pedestrians, and transmits the patrol commands to a plurality of mobile bodies. may By transmitting the patrol command to a number of mobile bodies corresponding to the types of crimes in which pedestrians are likely to be involved, more effective crime prevention can be achieved using the mobile bodies.
- a crime prevention device includes a pedestrian detection unit, a pedestrian attribute estimation unit, a pedestrian progress area estimation unit, a vehicle traffic amount calculation unit, a risk calculation unit, and a patrol command unit.
- the pedestrian detection unit receives the captured image transmitted from the vehicle and detects a pedestrian from the captured image.
- the pedestrian attribute estimating unit estimates pedestrian attributes from the captured image.
- the pedestrian progress area estimation unit estimates a pedestrian progress area in which the pedestrian walks based on the captured image.
- the vehicle traffic amount calculation unit calculates the vehicle traffic amount within the pedestrian progress area.
- the risk calculation unit calculates the risk of the pedestrian being involved in a crime based on the attributes of the pedestrian and the amount of vehicle traffic in the pedestrian progress area.
- the patrol command unit transmits a patrol command to patrol the pedestrian traveling area to the moving body when the degree of risk is higher than a preset threshold.
- the degree of danger can be made higher when the pedestrian is at a high risk of being involved in a crime and is walking in an area with a small amount of vehicle traffic.
- a patrol command for patrol of the pedestrian progress area can be transmitted to the mobile body. As a result, it is possible to more effectively prevent crime by using the moving body.
- the vehicle traffic amount calculation unit of the crime prevention device divides the pedestrian progress area into a plurality of areas, and further calculates the vehicle traffic amount in each of the divided pedestrian progress areas.
- the patrol command unit instructs the moving body to divide the divided pedestrian progress areas according to the amount of vehicle traffic in each of the divided pedestrian progress areas. Send a patrol command to command each patrol.
- a patrol command that adjusts the number of moving objects to be patrolled based on the amount of vehicle traffic in each of the divided pedestrian travel areas.
- a patrol command can be generated so as to increase the number of moving bodies to be patrolled in areas where the amount of vehicle traffic is particularly small.
- a patrol command so as to limit the area in which the mobile body is to be patrolled.
- a tour command can be generated so that only the area where the amount of vehicle traffic is particularly small is patrolled. Crime prevention can be performed more efficiently by using a moving body.
- the patrol command unit of the crime prevention device determines the type of mobile object to which the patrol command is to be sent, based on the type of crime preset corresponding to the attributes of the pedestrian.
- the patrol command unit of the crime prevention device determines the number of mobile objects to which the patrol command is transmitted, based on the type of crime set in advance corresponding to the attribute of the pedestrian.
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Abstract
Description
一実施形態に係る犯罪防止装置を含む犯罪防止システム1の概要について、図1を参照しながら説明する。図1は、犯罪防止システム1の概略構成を示す図である。本実施形態に係る犯罪防止システム1は、道路を走行する車両40と、与えられた巡回指令に基づいて自律走行を行う複数の自動運転車両50と、車両40及び自動運転車両50から送信される情報を収集して管理し、自動運転車両50に巡回指令を発行するサーバ20と、を含んでいる。本実施形態では、犯罪防止装置は、サーバ20のCPU(Central Prosessing Unit)23として実装される。
次に、図2を参照して、犯罪防止システム1の各構成要素について、詳細に説明する。図2は、図1に示す犯罪防止システム1の構成例を概略的に示したブロック図である。なお、図2において車両40及び自動運転車両50は例示的に1台ずつ示しているが、実際には各々が複数台存在してもよい。本実施の形態に係る犯罪防止システム1は、予め登録された車両40および自動運転車両50の各々を個別に特定することができるように、車両40および自動運転車両50の各々を識別するための個別の車両IDを管理している。犯罪防止システム1は、各車両40に搭載されている情報送信装置400のIDを車両40の車両IDとして管理してもよく、各自動運転車両50に搭載されている自動運転車両制御装置500のIDを自動運転車両50の車両IDとして管理してもよい。
次に、図7のフローチャートを参照して、本実施形態に係るCPU23の処理の流れの例を説明する。図7において、車両40は、車両40の位置情報及び車両40が撮像した撮像画像を、ネットワーク30を介してサーバ20に送信している。複数の自動運転車両50a~50cは、自動運転車両50a~50cの各々の位置情報を、ネットワーク30を介してサーバ20に送信している。サーバ20は、車両40及び自動運転車両50a~50cの位置情報を収集して管理している。
以上の説明では、車両往来量算出部235は、歩行者進行領域A内の車両往来量を算出し、巡回指令部237は、危険度が予め設定された閾値より高い場合に、歩行者進行領域Aの巡回を指令する巡回指令を自動運転車両50aへ送信した。しかし、車両往来量算出部235は、歩行者進行領域Aを複数の領域に分割し、分割された歩行者進行領域Aの各々の領域内の車両往来量をさらに算出してもよい。巡回指令部237は、危険度が予め設定された閾値より高い場合に、分割された歩行者進行領域Aの各々の領域内の車両往来量に応じて、自動運転車両50aに、分割された歩行者進行領域の各々の巡回を指令する巡回指令を送信してもよい。
また、以上の説明では、本実施形態に係る犯罪防止装置について、巡回指令を送信する移動体に自動運転車両50を用いる場合を例に説明した。しかし、歩行者が巻き込まれる可能性が高い犯罪の種類によっては、他の種類の移動体を用いた方がよい場合がある。例えば、声かけ、連れまわし、痴漢等の犯罪の防止には、カメラを搭載した自動運転車両50のような、監視性能を持つ移動体が適している。一方、ひったくりなどの犯罪の防止には、ドローンのような追跡性能を持つ移動体が適している。
以上説明したように、実施形態によれば、以下の作用効果が得られる。
Claims (5)
- 車両から送信された撮像画像を受信し、前記撮像画像から歩行者を検出する歩行者検出部と、
前記撮像画像から前記歩行者の属性を推定する歩行者属性推定部と、
前記撮像画像に基づき前記歩行者が歩行する歩行者進行領域を推定する歩行者進行領域推定部と、
前記歩行者進行領域内の車両往来量を算出する車両往来量算出部と、
前記歩行者の属性と前記歩行者進行領域内の車両往来量に基づいて、前記歩行者が犯罪に巻き込まれる危険度を算出する危険度算出部と、
前記危険度が予め設定された閾値より高い場合に、前記歩行者進行領域の巡回を指令する巡回指令を移動体へ送信する巡回指令部と、
を備える犯罪防止装置。 - 前記車両往来量算出部は、前記歩行者進行領域を複数の領域に分割し、分割された前記歩行者進行領域の各々の領域内の車両往来量をさらに算出し、
前記巡回指令部は、前記危険度が予め設定された前記閾値より高い場合に、分割された前記歩行者進行領域の各々の領域内の車両往来量に応じて、前記移動体に、分割された前記歩行者進行領域の各々の巡回を指令する巡回指令を送信する
請求項1に記載の犯罪防止装置。 - 前記巡回指令部は、前記歩行者の属性に対応して予め設定された犯罪の種類に基づき、前記巡回指令を送信する前記移動体の種類を決定する
請求項1又は2に記載の犯罪防止装置。 - 前記巡回指令部は、前記歩行者の属性に対応して予め設定された犯罪の種類に基づき、前記巡回指令を送信する前記移動体の数を決定する
請求項1又は2に記載の犯罪防止装置。 - 車両から送信された撮像画像を受信し、
前記撮像画像から歩行者を検出し、
前記撮像画像から前記歩行者の属性を推定し、
前記撮像画像に基づき前記歩行者が歩行する歩行者進行領域を推定し、
前記歩行者進行領域内の車両往来量を算出し、
前記歩行者の属性と前記歩行者進行領域内の車両往来量に基づいて、前記歩行者が犯罪に巻き込まれる危険度を算出し、
前記危険度が予め設定された閾値より高い場合に、前記歩行者進行領域の巡回を指令する巡回指令を移動体へ送信する
犯罪防止方法。
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