JP2018028855A - On-vehicle device and operation management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle device and an operation management system that allow outsiders to learn a state of an accident in real time and quickly take actions suitable for the state of the accident.SOLUTION: In a digital tachograph 10, a camera 23 installed on a vehicle takes images in forward, lateral, and backward directions of the vehicle. A G sensor 28 detects a G value of the vehicle. A GPS receiver 15 obtains GPS positional information on the vehicle. If the G sensor 28 detects a G value equal to or more than a threshold value, a communication unit 24 transmits images (video) and GPS positional information before and after the detection of the G value to an office PC 30 by radio communication.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle-mounted device and an operation management system.

  In carrying out the business, businesses such as trucking companies and bus companies are required to have vehicles such as trucks and buses arrive on time. On the other hand, it is very important to protect the safety of crew members and crew members. Therefore, when such a vehicle causes an accident, the office having jurisdiction over the vehicle needs to respond quickly.

  Conventionally, as an in-vehicle device attached to a vehicle, when it is determined that an accident has occurred from a G value detected by an acceleration sensor (G sensor), the office is notified of the occurrence of an alarm and an image captured at the time of the accident is displayed. Some recorded on a recording medium such as a memory card.

  For example, when the control device described in Patent Document 1 determines the occurrence of an accident from the magnitude of acceleration detected by the acceleration sensor, the accident data is associated with the accident occurrence time, image data, operation data, and vehicle position information. And the accident data is transmitted to a predetermined address on the IP communication network.

JP 2014-215875 A

  However, when the control device described in Patent Document 1 determines that an accident has occurred, the image at the time of the accident is first recorded on a recording medium, associated with other data such as the time of the accident, and then stored in the IP communication network. It was supposed to be sent. For this reason, there is a problem that a time lag occurs until the receiver of the accident data confirms the accident record.

  Therefore, the receiver of the data may be delayed in dealing with the accident. In other words, even if the office cannot respond to the vehicle not arriving at the designated time, or even if the crew is injured in an accident, the treatment may be delayed.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to allow an outside person to know the situation of the accident in real time and to quickly take a response corresponding to the situation of the accident. It is to provide a vessel and navigation management system.

  In order to achieve the above-described object, the vehicle-mounted device and the operation management system according to the present invention are characterized by the following (1) to (4).

(1) An imaging unit that is installed in a vehicle and images the periphery of the vehicle, an acceleration detection unit that detects acceleration of the vehicle, a position information acquisition unit that acquires position information indicating the current position of the vehicle, and the acceleration A transmission unit that transmits an image captured in the vicinity of the time at which acceleration equal to or greater than the threshold is detected and the position information to the outside by wireless communication when an acceleration greater than or equal to the threshold is detected by the detection unit;
A vehicle-mounted device comprising:

(2) a storage unit that stores the image when acceleration equal to or greater than the threshold is detected by the acceleration detection unit;
The vehicle-mounted device according to (1) above, wherein

(3) A case in which a speed detection unit that detects the speed of the vehicle is provided, and the transmission unit detects a stop of the vehicle by the speed detection unit within a predetermined time after an acceleration equal to or greater than the threshold is detected. To transmit the image and the position information,
The on-vehicle device according to (1) or (2) above, wherein

(4) An operation management system including the vehicle-mounted device according to any one of (1) to (3) and an external device connected to the vehicle-mounted device via wireless communication, wherein the external device is the vehicle-mounted device. A display unit for displaying a map indicating a position corresponding to the image and the position information received from a container;
An operation management system characterized by this.

  According to the vehicle-mounted device having the above configuration (1), an external person (for example, an administrator of the office) can know the situation of the accident in real time, and a situation in which an acceleration exceeding the threshold is detected (for example, an accident or the like). (Situation) can be taken promptly.

  According to the vehicle-mounted device having the above configuration (2), even if the image captured by the image capturing unit is stored in the storage unit, even if it may not be transmitted to the outside (for example, the office) depending on the communication state, an accident occurs. The image data relating to the image can be saved, and the subsequent response becomes possible.

  According to the vehicle-mounted device having the above configuration (3), it is necessary to transmit an alarm or an image when an acceleration exceeding the threshold is detected due to a road step, vibration noise around the vehicle-mounted device, sudden braking, etc., not an accident. When there is no such information, useless transmission can be suppressed. Therefore, when an accident occurs and the vehicle stops, the image and the position information are transmitted in real time. On the other hand, the image and the position information are real time every time the acceleration exceeds the threshold value even though the accident does not occur. Can be prevented.

  According to the operation management system configured as described in (4) above, an external person (for example, an administrator of an office) sees an image displayed on the display unit of the external device and detects an acceleration equal to or greater than a threshold value. (For example, the situation of an accident) can be determined and the police or emergency can be contacted. In addition, since the position corresponding to the position information of the vehicle is displayed on the map, it is useful information when, for example, examining the delivery route of a truck or calling attention in bus operation.

  According to the vehicle-mounted device and the operation management system of the present invention, an external person can know the situation of the accident in real time, and can take prompt action according to the situation of the accident.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a diagram showing a configuration of an operation management system in an embodiment of the present invention. 2 is a flowchart showing the operation procedure of the operation management system, FIG. 2A is a flowchart showing the operation procedure of the office PC, and FIG. 2B is a flowchart showing the operation procedure of the digital tachograph. FIG. 3 is a diagram showing an accident video imaged by a digital tachograph camera and displayed on the display unit of the office PC. FIG. 4 is a diagram showing a hazard map displayed on the display unit of the office PC.

  Specific embodiments relating to the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of an operation management system 5 in the embodiment. The operation management system of this embodiment is introduced as equipment of a business operator such as a trucking company or a bus company. The operation management system 5 manages the operation status of vehicles such as trucks and buses, and includes an operation recording device (hereinafter referred to as a digital tachograph) 10 and an office PC 30 connected via a network 70. Have

  The office PC 30 is composed of a general-purpose computer device installed in the office, and manages the operation status of the vehicle. The network 70 is a packet communication network such as the Internet to which the radio base station 8 that performs wide area communication with the digital tachograph 10 and the office PC 30 is connected, and relays data communication performed between the digital tachograph 10 and the office PC 30. . Communication between the digital tachograph 10 and the radio base station 8 may be performed by a mobile communication network (portable network) such as LTE (Long Term Evolution) / 4G (4th Generation) or a wireless LAN (Local Area Network). Network).

  The digital tachograph 10 is mounted on a vehicle, and records operation data such as entry / exit time, travel distance, travel time, travel speed, speed over, engine speed over, sudden start, sudden acceleration, sudden deceleration. The digital tachograph 10 includes a CPU 11, a nonvolatile memory 26 </ b> A, a volatile memory 26 </ b> B, a recording unit 17, a card I / F 18, an audio I / F 19, an RTC (clock IC) 21, a SW input unit 22, and a display unit 27.

  The CPU 11 comprehensively controls each part of the digital tachograph 10. The nonvolatile memory 26A stores an operation program executed by the CPU 11.

  The recording unit 17 records data such as operation data and video. A memory card 65 possessed by a crew member is detachably connected to the card I / F 18. The CPU 11 writes data such as operation data and video to the memory card 65 connected to the card I / F 18. A built-in speaker 20 is connected to the audio I / F 19. The speaker 20 emits sound such as an alarm.

  The RTC 21 (timer) keeps the current time. The SW input unit 22 is input with ON / OFF signals of various buttons such as a warehousing button and a warehousing button. The display unit 27 is composed of a liquid crystal display (LCD) and displays alarms and the like in addition to communication and operation states.

  The digital tachograph 10 includes a speed I / F 12A, an engine rotation I / F 12B, an external input I / F 13, a sensor input I / F 14, an analog input I / F 29, a GPS receiver 15, a camera I / F 16, a communication unit 24, and A power supply unit 25 is included.

  A vehicle speed sensor 51 that detects the vehicle speed is connected to the speed I / F 12A, and a speed pulse from the vehicle speed sensor 51 is input. The vehicle speed sensor 51 may be provided as an option in the digital tachograph 10 or may be provided as a device different from the digital tachograph 10. A rotation pulse from an engine rotation speed sensor (not shown) is input to the engine rotation I / F 12B. An external device (not shown) is connected to the external input I / F 13.

  The sensor input I / F 14 is connected to an acceleration sensor (G sensor) 28 that detects acceleration (G value) (senses an impact), and receives a signal from the G sensor 28. Examples of the G sensor include those having a method of reading mechanical displacement due to acceleration as vibration or a method of optically reading, but are not particularly limited. The G sensor detects an impact from the front of the vehicle (detects a deceleration G), may also detect an impact from the left and right directions (detects a lateral G), or an impact from the rear of the vehicle. May be detected (acceleration G may be detected). The G sensor is composed of one or a plurality of sensors so that these accelerations can be detected.

  Signals such as a temperature sensor (not shown) for detecting the engine temperature (cooling water temperature) and a fuel amount sensor (not shown) for detecting the fuel amount are input to the analog input I / F 29. CPU11 detects various driving | running states based on the information input via these I / F.

  The GPS receiver 15 is connected to the GPS antenna 15a, receives a signal transmitted from a GPS satellite, and acquires a current position (GPS position information).

  The camera I / F 16 is connected to a camera 23 that is installed in the vehicle and captures the image of the periphery (for example, the front) of the vehicle and acquires image data. The camera 23 has an image sensor in which, for example, 300,000, 1,000,000, and 2,000,000 pixels are arranged on an imaging surface that is imaged through a fisheye lens. The image sensor includes a known sensor such as a CMOS (complementary metal oxide semiconductor) sensor or a CCD (charge coupled device) sensor. The video (image data) captured by the camera 23 is recorded in time series in the recording unit 17, but is repeatedly overwritten so as to be recorded for a predetermined time. The predetermined time is a time corresponding to several seconds (for example, 2 seconds, 4 seconds, 10 seconds, etc.) before and after the accident so that the situation of the accident can be understood when the accident occurs. The image captured by the camera 23 may be a still image or a moving image. The video before and after the occurrence of the accident is displayed on the display unit 33 of the office PC 30 as will be described later.

  In addition to the front of the vehicle, a plurality of cameras 23 may be provided so that the rear, left side, and right side of the vehicle can be imaged, and a plurality of image sensors for imaging each direction are provided in one housing. It may be housed in the body. Therefore, the camera 23 can simultaneously capture the image in the left-right direction and the image in the rear in addition to the image in front of the vehicle.

  Therefore, when the G sensor senses an impact from the front (detects deceleration G), the camera 23 can capture a front image corresponding thereto. Further, when the G sensor detects an impact from the left and right direction (detects the lateral G), the camera 23 can capture a corresponding image in the left and right direction. Similarly, when the G sensor detects an impact from behind (detects acceleration G), the camera 23 can capture an image behind the vehicle. As a result, it is possible to reliably capture and display an image in a direction in which an impact is applied. Further, the digital tachograph 10 can transmit the accident video in a short time by transmitting only the limited video in the direction in which the impact is applied to the office PC 30. Therefore, immediacy (real time) is improved and an increase in network traffic is suppressed.

  Note that the camera is not limited to imaging in the front, left and right directions, and the rear of the vehicle, and the camera may be able to capture images in an arbitrary angle direction (for example, 45 ° direction). In addition to capturing visible light, the camera may include an infrared camera so that it can be captured at night.

  When the communication unit 24 performs wide area communication and is connected to the wireless base station 8 via a mobile network (mobile communication network), the communication unit 24 communicates with the office PC 30 via the network 70 such as the Internet connected to the wireless base station 8. Communicate. The power supply unit 25 supplies power to each unit of the digital tachograph 10 when the ignition switch is turned on.

  On the other hand, the office PC 30 is configured by a PC that operates on a general-purpose operating system. The office PC 30 functions as an operation management device and includes a CPU 31, a communication unit 32, a display unit 33, a storage unit 34, a card I / F 35, an operation unit 36, an output unit 37, a voice I / F 38, and an external I / F 48. .

  The CPU 31 comprehensively controls each unit of the office PC 30. The communication unit 32 can communicate with the digital tachograph 10 via the network 70. Further, the communication unit 32 can be connected to various databases (not shown) connected to the network 70 and can acquire necessary data.

  In addition to the operation management screen, the display unit 33 displays an accident video (see FIG. 3), a hazard map (see FIG. 4), and the like. The storage unit 34 stores various programs such as system analysis software for displaying images received from the digital tachograph 10 and displaying vehicle position information on a map.

  A memory card 65 is detachably attached to the card I / F 35. The card I / F 35 receives operation data measured by the digital tachograph 10 and stored in the memory card 65. The operation unit 36 includes a keyboard, a mouse, and the like, and accepts operations of an office manager. The output unit 37 outputs various data. A microphone 41 and a speaker 42 are connected to the audio I / F 38. The manager of the office can also make a voice call using the microphone 41 and the speaker 42. When a vehicle accident occurs, the manager of the office makes an emergency call or contacts the police.

  An external storage device (storage memory) 54 is connected to the external I / F 48. The external storage device 54 stores an accident point database (DB) 55, an operation data DB 56, and a hazard map DB 57. In the accident point database (DB) 55, GPS position information (latitude and longitude) of the vehicle at the time of the accident transmitted from the digital tachograph 10 is registered. In the operation data DB 56, as the operation data, in addition to loading / unloading time, speed, travel distance, etc., rapid acceleration / deceleration, sudden steering, speed over, engine speed over, etc. are recorded. Registered in the hazard map DB 57 is map data in which marks mk1 to mkn (see FIG. 4) representing points where accidents have occurred in the past (see FIG. 4) are superimposed on the map. In addition, the hazard map may describe an area where a disaster such as a natural disaster is expected, an evacuation site, or the like.

  When the CPU 31 reads out the hazard map 110 (see FIG. 4) of the specified region (for example, the region including the accident point) from the hazard map DB 57 and displays it on the display unit 33, the CPU 31 stores the accident point registered in the accident point DB 55. Data is acquired, and marks representing these accident points are superimposed on the hazard map 110 to generate a new hazard map. The manager of the office can immediately view the latest accident point on the map (hazard map 110).

  An accident video display operation in the operation management system 5 having the above-described configuration will be described. FIG. 2 is a flowchart showing an operation procedure of the operation management system 5, and FIG. 2A is a flowchart showing an operation procedure of the office PC 30. FIG. 2B is a flowchart showing the operation procedure of the digital tachograph 10.

  After the power supply unit 25 of the digital tachograph 10 is turned on, the CPU 11 detects whether an impact is detected by the G sensor 28 (G value is detected) (S1). Is discriminated (S2). This threshold value is set as a value for determining whether or not the impact applied to the vehicle is that at the time of the accident. Although the magnitude of the impact applied to the vehicle differs depending on the scale of the accident, the threshold value of the G value is set to a value that cannot be assumed during normal traveling. For example, by setting the threshold value to “2G”, it is possible to determine whether or not the impact corresponds to an accident. This threshold value is an example and can be set arbitrarily.

  Since the magnitude of the impact corresponding to the accident is considered to vary depending on the deceleration G, acceleration G, and lateral G, different threshold values may be set for each. For example, the threshold value may be set large for the deceleration G, the threshold value may be small for the acceleration G, and an intermediate value may be set for the lateral G.

  When the G value is less than the threshold value, the CPU 11 returns to the process of step S1. On the other hand, if the G value is greater than or equal to the threshold, the CPU 11 determines whether or not the impact is due to a road step, vibration noise around the digital tachograph, sudden braking, or the like (S3).

  Generally, when a vehicle has an accident, the accident vehicle stops. Here, description will be made based on the premise that the accident vehicle stops. If the impact is due to an accident, the vehicle stops in a short time. On the other hand, when a vehicle rides on a road step, finds an obstacle ahead, and suddenly brakes, or when a digital tachograph 10 hits an object and vibration noise occurs, that is, the impact is caused by an accident. If it is not, the vehicle will run without stopping.

  Therefore, when a G value equal to or greater than the threshold is detected as an impact in step S2, in step S3, the CPU 11 determines whether or not a stop of the vehicle is detected within a predetermined time from the impact. This predetermined time is set to a time longer than this time in consideration of the time from when the impact is applied (accident occurs) until the vehicle actually stops. Note that the time until the vehicle stops when the accident collides with an obstacle in front is estimated to be shorter than the time until the vehicle stops when the vehicle collides from behind. In this case, the predetermined time may be set short, and in the case of acceleration G, the predetermined time may be set long. In the case of the lateral G, the predetermined time may be set to an intermediate time between them.

  If the stop of the vehicle is not detected within the predetermined time, the CPU 11 returns to the process of step S1 without issuing an alarm, assuming that the impact is caused by a road step, vibration noise, sudden braking, or the like. Thereby, when it is not an accident and it is not necessary to transmit an alarm and a video, useless transmission can be controlled. Furthermore, the load of transmission processing can be reduced and network traffic can be reduced.

  On the other hand, when the stop of the vehicle is detected within a predetermined time, the CPU 11 determines that it is an accident, displays an alarm on the display unit 27 to notify the driver of the alarm, and transmits the alarm to the office. (S4). In the case where a warning is given to the driver, sound may be output from the speaker 20.

  As described above, only when a vehicle stop is detected within a predetermined time after the impact is applied, it is determined that the accident is occurred, and the process of transmitting the digital tachograph image is performed on all the images in which the impact is detected (always). ) The transmission is limited as compared with the case of transmission, and can be regarded as a kind of filter processing.

  Note that the process shown in FIG. 2 mainly assumes a case where an impact is sensed while the vehicle is traveling, but can be similarly applied to a case where an impact is sensed while the vehicle is stopped. That is, even if the vehicle is stopped, if the stop of the vehicle is detected after an impact is applied in step S3, the CPU 11 transmits a warning and video data to the office PC 30.

  After transmitting the alarm in step S4, the CPU 11 captures the images (camera images) captured by the camera 23 before and after the impact, the GPS position information acquired by the GPS receiver 15, and the vehicle speed detected by the vehicle speed sensor 51. The G value detected by the G sensor 28 is transmitted to the office PC 30 and recorded in the recording unit 17 (S5). By not only transmitting to the office PC but also storing data such as video in the recording unit 17 of the digital tachograph 10, even if there is a case where it cannot be transmitted to the office PC 30 depending on the communication status, Data can be stored without loss, and subsequent actions can be taken. Thereafter, the CPU 11 returns to the process of step S1.

  On the other hand, in the office PC 30, after starting, the CPU 31 waits for transmission from the digital tachograph 10 and displays an alarm on the display unit 33 when an alarm is received (S11). Note that the CPU 31 may output an alarm sound from the speaker 42 during alarm display. Since the warning is displayed on the screen of the display unit 33, the manager of the office can easily notice the warning.

  Further, when the CPU 31 waits for transmission from the digital tachograph 10 and receives the above-described camera image, GPS position information, vehicle speed and acceleration (G value), the display unit 33 displays the camera image, that is, the accident image 120 (see FIG. 3). ) Etc. are displayed (S12).

  FIG. 3 is a diagram showing an accident image 120 captured by the camera 23 of the digital tachograph 10 and displayed on the display unit 33 of the office PC 30. As described above, the accident video 120 is a video for several seconds before and after the occurrence of the accident. The accident video 120 includes a front image 120F, a right side image 120R, a left side image 120L, and a rear image 120B. In FIG. 3, an image 120F in front of the vehicle is greatly displayed on the left side of the screen. The accident video 120 may be displayed as a fish-eye image, but here it is displayed as a normal image. In this accident video 120, the situation of the accident colliding with the truck CA1 ahead can be seen.

  As a display method of the accident image 120, for example, the accident image 120 may be arranged in the same manner as when the vehicle is viewed from above. That is, the front image 120F is arranged on the upper side of the screen, the right side image 120R is arranged on the right side of the screen, the left side image 120L is arranged on the left side of the screen, and the rear image 120B is arranged on the lower side of the screen. May be arranged. The manager of the office can grasp intuitively which direction the image is reflected. Further, when displaying the accident video 120, the CPU 31 also displays a driving data table TL1 including information such as a GPS position, a vehicle speed, and an acceleration (G value) on the screen of the display unit 33.

  The manager of the office looks at the accident video 120 (see FIG. 3) and the operation data table TL1 displayed on the display unit 33 of the office PC 30 to determine the situation of the accident, and the speaker 42 and the microphone of the office PC 30 41 can be used to contact the emergency and police from the office.

  The CPU 31 adds and registers an accident point in the accident point DB 55 based on the received GPS position information (S13). Thereafter, the CPU 31 ends this operation. The information on the accident point added / registered in the accident point DB 55 is displayed in a superimposed manner when the CPU 31 displays the hazard map registered in the hazard map DB 57 on the screen of the display unit 33, for example. FIG. 4 is a diagram showing the hazard map 110 displayed on the display unit 33 of the office PC 30. The hazard map 110 is registered in the hazard map DB 57. In the hazard map 110, marks mk1 to mkn representing accident points registered in the accident point DB 55 are described superimposed on the map. The mark is displayed in an identifiable manner so as to correspond to the recording date and time displayed on the right side of the screen. Here, the marks are identified by the codes mk1 to mkn, but may be identified so as to correspond to the recording date and time by changing the color of the marks or adding numbers.

  In this way, the accident points are made into a database, and the mark indicating the accident point is displayed on the hazard map, which is useful information for, for example, examining the delivery route of the truck and calling attention in the bus operation. The accident point is not limited to the mark, and may be displayed in other display forms (characters or the like).

  In the digital tachograph 10 of the present embodiment, the camera 23 (imaging unit) installed in the vehicle images the front, left-right direction, and rear of the vehicle as the periphery of the vehicle. The G sensor 28 (acceleration detection unit) detects the acceleration (G value) of the vehicle. The GPS receiving unit 15 (position information acquisition unit) acquires position information (GPS position information) representing the current position of the vehicle. When the G sensor 28 detects a G value greater than or equal to a threshold value, the communication unit 24 detects images before and after the G value detection (images taken in the vicinity of the time when acceleration greater than the threshold value is detected) and the GPS position. Information is transmitted to the office PC 30 (external) by wireless communication.

  As a result, even if the driver of the vehicle is injured due to an accident or the like and cannot immediately contact the manager of the office, the digital tachograph 10 automatically generates data indicating the accident situation in the office. Can be sent to PC30. Therefore, even if the driver is panicked due to the occurrence of the accident, the correct accident situation is transmitted to the office. The manager of the office can confirm the situation of the accident by viewing the video transmitted from the digital tachograph 10 displayed on the screen of the office PC 30. In addition, when the manager of the office determines that the arrival of the vehicle is delayed due to an accident, it is possible to quickly respond to the delay such as contacting the delivery destination (customer) in advance. In addition, emergency offices and police can be contacted from the office as needed.

  In this manner, the manager of the office can know the situation of the accident in real time, and can quickly take a response according to the situation where the acceleration equal to or greater than the threshold is detected (for example, the situation such as an accident).

  In addition, when the G sensor 28 detects a G value that is equal to or greater than the threshold value, the digital tachograph 10 stores images before and after the G value detection in the recording unit 17 (storage unit).

  Thus, even if it is a case where data, such as an image and a position, cannot be transmitted to office PC30 by memorizing the image before and after G value detection picked up with camera 23 in recording part 17 by communication state. The image data related to the accident can be saved, and the subsequent response is possible.

  The digital tachograph 10 includes a vehicle speed sensor (speed detection unit) that detects the speed of the vehicle. The communication unit 24 transmits images before and after the G value detection and GPS position information when a vehicle speed sensor detects a stop of the vehicle within a predetermined time after the G value equal to or greater than the threshold is detected.

  This makes it unnecessary to send an unnecessary transmission when an acceleration exceeding the threshold is detected due to a road step, vibration noise around the vehicle-mounted device, sudden braking, etc., that is, it is not necessary to transmit an alarm or an image. Can be suppressed.

  The operation management system 5 according to the present embodiment includes a digital tachograph 10 and an office PC 30 (external device) connected to the digital tachograph 10 via wireless communication. The display unit 33 of the office PC 30 displays the images before and after the G value detection received from the digital tachograph 10 and the hazard map 110 (map) indicating the position corresponding to the GPS position information.

  Thereby, the manager of the office can see the image displayed on the display unit 33 of the office PC 30, judge the situation of the accident, and can contact the police, first aid, and the like. In addition, by creating a database of accident points and displaying the mark mk representing the accident point on the hazard map 110, it becomes useful information in, for example, examining the delivery route of a truck or calling attention in bus operation.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the above embodiment, a case where the present invention is applied to a digital tachograph as an on-vehicle device has been shown. However, the present invention only needs to have a sensor capable of detecting an impact, and a dedicated device capable of detecting acceleration, a drive recorder It is also applicable to meters and the like. Further, a combination of a drive recorder equipped with a camera and a digital tachograph equipped with a G sensor may be used.

  In the above embodiment, the impact is detected by the G sensor. However, the impact may be detected from a change in speed measured by the vehicle speed sensor.

  Further, in the above embodiment, the digital tachograph transmits the “video etc.” data having a long transmission time after transmitting the “alarm” having a short transmission time. Good. In this case, the time becomes longer, but only one transmission operation is required.

  Moreover, in the said embodiment, although the trucking company and the bus company were illustrated, companies, such as a taxi company, may be sufficient.

Here, the features of the above-described embodiments of the vehicle-mounted device and the operation management system according to the present invention are summarized and listed in the following [1] to [4], respectively.
[1] An imaging unit (camera 23) that is installed in a vehicle and images the periphery of the vehicle;
An acceleration detector (G sensor 28) for detecting the acceleration of the vehicle;
A position information acquisition unit (GPS reception unit 15) for acquiring position information indicating the current position of the vehicle;
A transmission unit (communication) that transmits an image captured in the vicinity of the time at which acceleration equal to or greater than the threshold is detected and the position information to the outside by wireless communication when the acceleration detection unit detects acceleration that is equal to or greater than the threshold Part 24),
A vehicle-mounted device (digital tachograph 10) characterized by comprising:
[2] A storage unit that stores the image when acceleration equal to or greater than the threshold is detected by the acceleration detection unit;
The on-vehicle device according to [1] above, wherein
[3] A speed detection unit (vehicle speed sensor 51) for detecting the speed of the vehicle is provided,
The transmission unit transmits the image and the position information when a stop of the vehicle is detected by the speed detection unit within a predetermined time after an acceleration equal to or greater than the threshold is detected.
The on-vehicle device according to [1] or [2] above, wherein
[4] An operation management system (operation management system 5) including the vehicle-mounted device according to any one of [1] to [3] and an external device connected to the vehicle-mounted device via wireless communication,
The external device includes a display unit (display unit 33) that displays a map indicating a position corresponding to the image and the position information received from the vehicle-mounted device.
An operation management system characterized by this.

5 Operation management system 8 Radio base station 10 Digital tachograph (operation recording device)
11, 31 CPU
12A Speed I / F
12B Engine rotation I / F
13 External input I / F
14 Sensor input I / F
15 GPS receiver 15a GPS antenna 16 Camera I / F
17 Recording unit 18 Card I / F
19 Voice I / F
20, 42 Speaker 21 RTC
22 SW Input Unit 23 Camera 24, 32 Communication Unit 25 Power Supply Unit 26A Nonvolatile Memory 26B Volatile Memory 27 Display Unit 28 G Sensor 29 Analog Input I / F
30 office PC
33 Display unit 34 Storage unit 35 Card I / F
36 Operation unit 37 Output unit 38 Audio I / F
41 Microphone 48 External I / F
51 Vehicle speed sensor 54 External storage device (storage memory)
55 Accident point DB
56 Operation data DB
57 Hazard Map DB
65 Memory card 70 Network 110 Hazard map 120 Accident image CA1 Truck mk1 to mkn Mark TL1 Operation data table

Claims (4)

An imaging unit installed in a vehicle for imaging the periphery of the vehicle;
An acceleration detector for detecting the acceleration of the vehicle;
A position information acquisition unit for acquiring position information indicating the current position of the vehicle;
A transmission unit that transmits an image captured in the vicinity of a time at which acceleration equal to or greater than the threshold is detected and the position information to the outside by wireless communication when acceleration equal to or greater than the threshold is detected by the acceleration detection unit;
A vehicle-mounted device comprising: A storage unit that stores the image when acceleration equal to or greater than the threshold is detected by the acceleration detection unit;
The on-vehicle device according to claim 1. A speed detector for detecting the speed of the vehicle;
The transmission unit transmits the image and the position information when a stop of the vehicle is detected by the speed detection unit within a predetermined time after an acceleration equal to or greater than the threshold is detected.
The on-vehicle device according to claim 1 or 2, wherein An operation management system comprising the vehicle-mounted device according to any one of claims 1 to 3 and an external device connected to the vehicle-mounted device via wireless communication,
The external device includes a display unit that displays a map indicating a position corresponding to the image and the position information received from the vehicle-mounted device.
An operation management system characterized by this.

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