JP2007238093A - Driving information recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driving information recording apparatus with high versatility capable of easily adding a trigger even if the trigger is added/required. <P>SOLUTION: When an on/off port 52 inputs a signal from an airbag ECU 53 or the like, a first CPU controls it to record it on a CF card 11 making the inputted signal as the trigger. Especially, the on/off port 52 can input the signal from a separate vehicle state detection means from a detection means for detecting that the vehicle becomes in the predetermined state, therefore, it is not required that a drive recorder is re-manufactured from first. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a driving information recording apparatus, and relates to a technique for improving its versatility.

  Conventionally, for example, a taxi dispatch system that employs a 400 MHz band digital radio, expands the amount of data communication, and improves the collection accuracy of vehicle position information and dynamic information has been put to practical use. According to this taxi dispatch system, since the collection accuracy of vehicle position information and the like has been improved, the convenience of taxi users can be improved, and the work efficiency of dispatch staff and crew can be improved. By the way, a technique has been proposed in which the vehicle state is recorded endlessly, and when there is an accident such as a vehicle collision, the endless recording is stopped and the previous information is recorded on another recording medium (for example, Patent Documents). 1).

JP-A 63-16785

  In Patent Document 1, a trigger is determined from the time of manufacture. When a vehicle manufacturer, a transportation company, or the like wants to analyze an accident from a new viewpoint, it is necessary to add another trigger. Therefore, it was necessary to remanufacture the drive recorder from the beginning, which was very expensive.

  An object of the present invention is to provide a highly versatile driving information recording apparatus that can be easily added even when a trigger is requested to be added.

The present invention (1) inputs a signal from a means for cyclically storing driving information relating to vehicle driving in a storage means and a detection means for detecting that the vehicle has entered a predetermined state, and using that signal as a trigger And an operation information recording device comprising means for recording the operation information stored in the storage means on a recording medium.
Input means capable of inputting a signal from another vehicle state detection means different from the detection means;
Control means for controlling the signal input from the input means to be recorded on the recording medium as a trigger,
The input means can input a signal for performing an alarm from a security control means for performing an alarm at the time of vehicle theft detection,
The operation information recording device is configured to be activated by a signal indicating that the security control unit outputs a theft monitoring state.
The control means monitors whether or not there is an alarm signal in a state where the operation information recording device is activated by the signal, and controls to record the operation information stored in the storage means using the alarm signal as a trigger. Is an operation information recording device characterized by

Further, the present invention (2) inputs a signal from a means for cyclically storing driving information relating to vehicle operation in the storage means and a detection means for detecting that the vehicle has entered a predetermined state, and triggers the signal. As an operation information recording apparatus comprising: means for recording operation information stored in the storage means on a recording medium;
Input means capable of inputting a signal from another vehicle state detection means different from the detection means;
Control means for controlling the signal input from the input means to record on the recording medium as a trigger,
The input means can input a signal for performing an alarm from a security control means for performing an alarm at the time of vehicle theft detection,
When a signal indicating that a theft monitoring state output by the security control means is input to the driving information recording device within a predetermined time after the accessory signal of the vehicle is turned off,
The control means continues the activation state of the operation information recording device, monitors whether there is an alarm signal in the activation state, and records the operation information stored in the storage means using the alarm signal as a trigger. It is the driving information recording device characterized by controlling as follows.

Further, the present invention (3) inputs a signal from a means for cyclically storing driving information relating to vehicle operation in the storage means and a detection means for detecting that the vehicle has entered a predetermined state, and triggers the signal. As an operation information recording apparatus comprising: means for recording operation information stored in the storage means on a recording medium;
Input means capable of inputting a signal from another vehicle state detection means different from the detection means;
Control means for controlling the signal input from the input means to record on the recording medium as a trigger,
The input means can input a signal for performing an alarm from a security control means for performing an alarm at the time of vehicle theft detection,
The control means and the security control means are configured to be set in an electrical connection state or a non-connection state, and the control means has a function of determining whether or not the connection state is present,
The control means, when connected to the security control means, after the accessory signal of the vehicle is turned off, continues the activation state of the driving information recording device, monitors whether there is an alarm signal in the activation state, An operation information recording apparatus that controls to record the operation information stored in the storage means using an alarm signal as a trigger.

The present invention (4) further comprises a storage medium inside the driving information recording device,
The control means controls the operation information stored in the storage means by using an alarm signal as a trigger so as to be recorded in a storage medium inside the operation information recording apparatus without being recorded in the recording medium.

  Further, the present invention (5) is characterized in that the control means controls the operation information stored in the storage medium to be recorded on the recording medium by a predetermined operation.

  Further, the present invention (6) is further characterized in that a secondary battery is further provided in the driving information recording device, and the driving information recording device is continuously activated by the secondary battery.

  According to the present invention (1), when the input means inputs a signal from the vehicle state detection means, the control means controls to record the input signal on the recording medium as a trigger. In particular, since the input means can input a signal from another vehicle state detection means different from the detection means, it is not necessary to remanufacture the drive recorder from the beginning, and the cost can be reduced accordingly. Therefore, it is possible to provide a highly versatile driving information recording apparatus that can be easily added even when a trigger is requested to be added.

  According to the invention (2), the airbag control means is applied as the vehicle state detection means, and the control means controls to record on the recording medium a signal indicating that the airbag is deployed. Thus, the versatility of the driving information recording device can be improved.

  According to the present invention (3), the timing for monitoring whether or not there is a signal indicating that the airbag is to be deployed can be set earlier than the preset monitoring timing. Therefore, the trigger monitoring cycle can be changed appropriately.

  According to the present invention (4), the security control unit that issues an alarm when a vehicle theft is detected records the signal that causes the alarm on the recording medium as a trigger. Thus, the versatility of the driving information recording device can be improved.

  Further, according to the present invention (5), whether or not there is a signal for giving an alarm when the vehicle operation is stopped is monitored, and monitoring of other unnecessary triggers when the vehicle operation is stopped is ignored. The contents of the monitoring trigger can be limited. Therefore, the processing load of the control means can be reduced.

  Further, according to the present invention (6), the driving information recording device is activated by a signal indicating that the theft monitoring state has been entered. In other words, the driving information recording device is used by using the original theft monitoring signal instead of the dedicated signal. Can be activated. Therefore, the wiring connection of the operation information recording device can be simplified, and the number of parts and the number of man-hours can be reduced as compared with those using the dedicated signal.

  According to the present invention (7), when the theft monitoring signal is input to the driving information recording device within a predetermined time after the accessory signal is turned off, the control means continues the activation state of the driving information recording device, Whether there is an alarm signal in the activated state is monitored. In this way, it is possible to continue the activation state of the driving information recording device using the original theft monitoring signal. Therefore, the wiring connection of the operation information recording device can be simplified, and the number of parts and man-hours can be reduced.

  According to the present invention (8), when the control means and the security control means are in the connected state, it is possible to continue the startup state of the operation information recording apparatus after the accessory signal is turned off. When there is an alarm signal in the activated state, the operation information stored in the storage means is recorded.

  According to the present invention (9), when there is an alarm signal, the driving information is not recorded on the recording medium but is recorded on the storage medium inside the driving information recording apparatus, so that the security can be further improved.

  According to the present invention (10), since the driving information stored in the storage medium can be recorded on the recording medium by a predetermined operation, the recording medium can be taken out of the vehicle and used for analysis or the like. Thus, convenience can be improved.

  According to the present invention (11), since the activation state of the driving information recording device can be continued by the secondary battery, the driving information can be more reliably recorded even when the battery provided in the vehicle is exhausted. It becomes possible.

  Hereinafter, a plurality of embodiments for carrying out the present invention will be described with reference to the drawings. Portions corresponding to the matters described in the preceding forms in each embodiment are denoted by the same reference numerals, and overlapping description may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding section. Not only the combination of the parts specifically described in each embodiment, but also the embodiments can be partially combined as long as the combination does not hinder.

  FIG. 1 is a perspective view showing the relationship between the drive recorder 1 and the control device 2 according to the first embodiment of the present invention. FIG. 2 is a perspective view of a modified form in which the drive recorder 1 is partially changed. FIG. 3 is a diagram for explaining a camera mounting position on the vehicle 3. 4 is a diagram showing the center 4, FIG. 4 (a) is a diagram showing the center device configuration, and FIG. 4 (b) is a display 4a showing a travel locus of the vehicle 3, a captured image, and a G sensor measurement value. It is a figure showing the one aspect | mode which output. In the first embodiment, the drive recorder 1 is electrically connected to the operation management control device 2 (sometimes referred to as an AVM-ECU 2) mounted in advance on the vehicle 3. For example, the position, time, and dynamic information of the vehicle 3 can be transmitted from the control device 2 to the center 4 using a digital radio frequency in the 400 MHz band. Of these, specific vehicles are dispatched. Further, the center 4 issues an image photographing request to the drive recorder 1 via the control device 2 using the radio frequency or the like. However, the applied radio frequency is not necessarily limited to the 400 MHz band. For example, a frequency band allocated for a mobile phone may be applied. An analog radio frequency may be applied instead of a digital radio frequency.

  A drive recorder 1 (referred to as first drive recorder 1) as a driving information recording device according to the first embodiment records the position, time and dynamic information (referred to as information etc.) of the vehicle 3 from the control device 2. In addition, when a predetermined condition is satisfied, the image and audio information are recorded in association with the information. The center device is configured to be able to analyze and output these pieces of information recorded in the first drive recorder 1.

The first drive recorder 1 is a drive recorder main body 5 (referred to as a drive recorder body 5), a camera 6 that is an image pickup means, a microphone 7 that is a sound information acquisition means for acquiring sound information in the passenger compartment, and an information output means that issues warning information. A buzzer 8 is provided. The camera 6 and the microphone 7 are electrically connected to the drive recorder body 5 and provided separately, and the buzzer 8 is provided integrally with the drive record body 5. The vehicle 3 is provided with at least one camera 6. The camera 6 is realized by a CCD camera (CCD: Charge Coupled Device). This camera 6 is affixed to a windshield 3a, for example, on the back of the rearview mirror via a bracket (not shown) so as to photograph the vehicle front direction indicated by the arrow D1 in FIG. That is, the camera 6 is fixed toward the front of the vehicle. In the first draco 1, as an option, a second or third camera 6 can be provided in the vehicle 3. Specifically, the camera 6 </ b> A for photographing inside the passenger compartment 3 or photographing behind the vehicle. It is also possible to provide a camera 6B. There may be a case where the photographing switch 9 for photographing these cameras 6 is electrically connected to the dorareco body 5 and provided separately.

In addition, as shown in FIG. 2, GPS (GPS: Global Positioning)
System) It is also possible to apply a drive recorder 1A to which an antenna 10 and a GPS receiver (not shown) are added to a vehicle.

FIG. 5 is a perspective view of the drive recorder 1, and FIG. 6 is a front view of the drive recorder 1. The dorareco body 5 is configured such that a CF card 11 (CF: Compact Flash) as a recording medium can be inserted and removed. The CF card 11 has a structure in which a flash memory that does not lose its memory even when it is not energized, and a controller circuit that is responsible for input / output to / from the outside are combined into a single card. A first RAM 12 (RAM: Random), which will be described later, of the dorareko body 5.
In the Access Memory, driving information including a vehicle peripheral image, audio information from a microphone in the vehicle interior, position, individual, time, and actual empty vehicle information is sequentially recorded in an endless manner. When predetermined conditions are satisfied, at least a part of these pieces of information is recorded on the CF card 11. In particular, in the case of an actual empty vehicle trigger described later, only voice and actual empty vehicle information among a plurality of driving information is recorded on the CF card 11.

FIG. 7 is a block diagram showing the electrical configuration of the drive recorder 1, the control device 2, and the center 4. FIG. 8 is a block diagram showing an electrical configuration of the drive recorder 1. FIG. 9 is a block diagram illustrating an electrical configuration of the control device 2. The drive recorder body 5 includes a first CPU 13 (CPU: Central Processing Unit) as a control means and a first ROM 14 (ROM:
Read Only Memory (ROM), the first RAM 12 as a storage means, a CF card interface 15, and a JPEG IC 16 (JPEG: Joint Photographic coding)
It has an Experts Group, IC (Integrated Circuit), a video switch 17, and a light emitting diode 18 (abbreviated as LED: Light Emitting Diode, see FIG. 5). The dorareco body 5 is a USB HOST 19 (USB: Universal) which is a means having a USB host function.
A first communication driver 21 for exchanging information between the serial bus (Serial Bus), the USB interface 20, and the control device 2, and an LCD controller connector 22 (LCD: Liquid Crystal).
Display), a first buffer 23, a first circuit 24 for detecting a power activation signal from the control device 2, a first watchdog IC 25 having a watchdog function, a first power supply unit 26, and a G sensor 27 And a counter (not shown) for counting vehicle speed pulses. The LCD operation unit connector 22 is configured to be connectable to an LCD operation unit 28 for maintenance mode, which will be described later. The G sensor 27 is a sensor that detects a so-called G sensor output value of gravitational acceleration acting in the front-rear direction and the left-right direction of the vehicle 3. The front direction and the rear side of the crew seated in the driver's seat of the vehicle 3 are defined as the front-rear direction, and the left and right directions of the crew seated in the vehicle 3 are defined as the left-right direction. The direction orthogonal to the front-rear and left-right directions is the up-down direction. The front-rear direction is defined as the Y-axis direction, and the left-right direction is defined as the X-axis direction. The G sensor output value in the X-axis direction and the G sensor output value in the Y-axis direction are detected and recorded independently.

  The first RAM 12 includes a first SD-RAM 29 (SD-RAM: Synchronous DRAM) and a second SD-RAM 30. The first SD-RAM 29 temporarily records a raw image taken by a camera. The recorded image is converted into image data in JPEG format. The second SD-RAM 30 is configured to record endlessly and cyclically the image data converted into the JPEG format, the G sensor output value from the G sensor 27, the sound, and the like. The first ROM 13, the second SD-RAM 30, and the CF card interface 15 are electrically connected to the first CPU 13, respectively, and the first SD-RAM 29 and the video switch 17 are electrically connected to the first CPU 13 via the JPEG IC 16. Has been. The video switch 17 is a change-over switch for switching between the cameras 6 and 6A (6B) that capture images at predetermined time intervals when a plurality of cameras 6 and 6A (6B) are provided. A USB interface 20 is electrically connected to the first CPU 13 via a USB HOST 19, and a communication driver 21, an LCD operation device connector 22, a first buffer 23, a first watchdog IC 25, and a G sensor 27 are electrically connected to the first CPU 13. Connected. The first buffer 23 is electrically connected to the first circuit 24. A first power supply unit 26 is electrically connected to the first watchdog IC 25. The first CPU 13 is configured to start up the first power supply unit 26 that is the main power supply based on the power-on information from the control device 2. When the power activation signal cannot be obtained from the control device 2, the input from the communication driver 21 is switched to the input to the GPS antenna side by a switch, assuming that the control device 2 is not connected. Thus, the position from the GPS can be detected alone instead of the position information from the control device 2.

The control device 2 includes a microcomputer having a second CPU 31 for AVM, a second ROM 32 and a second RAM 33, a second buffer 34, a GPS (GPS: Global
Positioning System) receiver 35, GPS antenna 36, ASIC 37 (ASIC: Application Specific Integrated Circuit), second communication driver 38, LCD controller 39, third buffer 40, Hi / Lo from vehicle 3 It has the 2nd circuit 41 which detects a signal, 2nd watchdog IC42, and the 2nd power supply part 43. FIG. A second ROM 32 and a second RAM 33 are electrically connected to the second CPU 31, and a card M conforming to the PCMCIA standard is electrically connected via the second buffer 40. A second communication driver 38 is electrically connected to the second CPU 31 via the ASIC 37, and a digital radio 45 capable of transmitting and receiving at a digital radio frequency of 400 MHz band is electrically connected to the second communication driver 38. ing. By the way, in 1st Embodiment, although the GPS receiver 35 and the GPS antenna 36 are provided in the control apparatus 2, as shown in FIG. 2, the structure in which the GPS receiver and the GPS antenna 10 are provided in the dorareko main body 5 is shown. It is also possible to make it.

  Position information and time information are acquired using the GPS antenna 36 and the GPS receiver 35, and crew data can be input from the LCD controller 39. The actual empty vehicle information is acquired from an actual vehicle / empty vehicle meter 44 as an actual empty vehicle operating means operated by the driver. The actual vehicle / empty vehicle meter 44 is provided with a switch operated by a driver's operation. When the passenger enters the vehicle and confirms the destination, the switching state of the switch is operated to the actual vehicle by the driver. When the vehicle arrives at the destination, the driver operates the switching state of the switch on the empty vehicle side, and payment is made.

  These position information, time information, crew data, and actual empty vehicle information are temporarily stored in the second RAM 33. When there is a request for information transmission from the center 4 via the digital wireless device 45, the information stored in the second RAM 33 is transmitted to the center 4 via the digital wireless device 45. Moreover, the control apparatus 2 may transmit to the center 4 voluntarily regularly. Further, when there is a vehicle allocation request from the center 4 via the digital radio 45, the control device 2 notifies the driver via the speaker SP.

  Since the control device 2 originally has such basic functions, the control device 2 serializes the obtained position information, time information, crew data and actual vehicle information to the drive recorder 1 via the driver 38. It transmits with the communication line SL. The drive recorder 1 receives the information via the first communication driver 21 and stores it in the second SD-RAM 30.

  FIG. 10 is a block diagram illustrating an electrical configuration of a main part of the control device 2. FIG. 11 is a block diagram showing an electrical configuration of a main part of the drive recorder 1. FIG. 12 is a diagram for explaining a delay circuit for resetting by hardware when the watchdog pulse is stopped or does not operate at a predetermined cycle. As shown in FIG. 10, in the control device 2, the accessory power source of the vehicle 3 is connected to the input side 46 a of the OR circuit 46, that is, the OR circuit 46, and the second CPU 31 controls the other input side 46 b of the OR circuit 46. A signal is supplied. A power-on signal S1 is supplied from the second power supply unit 43 connected between the OR circuit 46 and the second CPU 31 to the drive recorder 1 side. That is, as shown in FIG. 11, in the drive recorder 1, an accessory power supply is connected to one input side 47a of the OR circuit 47, and the power-on signal S1 is supplied to the other input side 47b of the OR circuit 47.

  The drive recorder 1 is activated when the ACC signal supplied from the accessory power supply is turned on or the control device 2 is turned on. Further, the drive recorder 1 performs termination control by software so that data recording can be performed even when the ACC signal is off and the second power supply unit 43 of the control device 2 is off (falling signal in FIG. 12). It is like that. As shown in FIG. 12, when a watchdog pulse (denoted as a WD pulse in FIG. 12) is generated by software during operation of the control device 2 and the watchdog pulse is stopped or does not operate at a specified cycle, A reset is applied. In the present embodiment, the second watchdog IC 42 and the second CPU 31 correspond to a delay circuit.

  FIG. 13 is a block diagram illustrating an electrical configuration of a main part according to a modified form in which the drive recorder 1 is partially changed. In the present embodiment, the ACC signal and the power-on signal S1 are supplied to the input side of the OR circuit 47 in the drive recorder 1, but the present invention is not necessarily limited to this form. That is, as shown in FIG. 13, the drive recorder 1 may be configured such that the ACC signal, the power-on signal, and the control signal S <b> 2 from the first CPU 13 are supplied to the input side of the OR circuit 47. Even in this modified form, when a watchdog pulse is generated by software during operation of the drive recorder 1 and the watchdog pulse is stopped or does not operate at a predetermined cycle, it can be reset by hardware. In the modified form, the first watchdog IC 25 and the first CPU 13 correspond to a delay circuit.

  FIG. 14 is a diagram illustrating a relationship between part of image information and position information. FIG. 15 is a diagram illustrating a mode in which still image information is recorded on the CF card 11 at regular intervals δ based on the G sensor output value. The first CPU 13 converts the input image picked up by the camera 6 and input to the drive recorder body 5 into a JPEG converted image by the JPEG IC 16, and then the first CPU 13 sequentially records the JPEG converted image in the second SD-RAM 30 in an endless manner. . At this time, one still image is recorded in the format of “image * .jpg”, for example. However, the “*” is an integer. As additional information of the recorded still image, the G sensor output value, position, time, vehicle speed information from the actual sky vehicle and the vehicle speed sensor 50, and voice information from the microphone 7 are recorded as the second SD-RAM 30. To endlessly.

  When the predetermined recording condition is satisfied, the first CPU 13 causes the buzzer 8 to output a recording start signal. At the same time, the first CPU 13 causes the CF card 11 to record the JPEG converted image, G sensor output value, position, time, actual empty vehicle, and vehicle speed information from the vehicle speed sensor 50 recorded in the second SD-RAM 30. In the present embodiment, for example, 10 still images are recorded per second, and 300 still images can be recorded on the CF card 11 per event for a maximum of 30 seconds. One event is synonymous with one state that satisfies a predetermined recording condition.

The recording conditions will be described. FIG. 16 is a diagram illustrating the relationship between the G sensor output value 48 that exceeds the threshold and the recording range Rh of the image information recorded on the CF card 11. As a recording condition, the G sensor output value 48 is a threshold value Gmax. Or Gmin. Exceeding the threshold, the JPEG converted image recorded in the second SD-RAM endlessly over the recording range of up to 30 seconds, its G sensor output value, position, time, actual empty vehicle and vehicle speed information The voice information from the microphone 7 is recorded on the CF card 11. The time when the threshold is exceeded may be referred to as a trigger occurrence. The time obtained by adding the recording time T _aft seconds after the occurrence of the trigger to the recording time T _bef seconds before the occurrence of the trigger corresponds to the total time of the recording range in one event. A maximum of 30 seconds can be set in a range of 5 seconds to 25 seconds before the trigger occurrence and 5 seconds to 25 seconds after the trigger occurrence.

FIG. 17 is a diagram for explaining a threshold determination method for the G sensor output value. This will be described with reference to FIGS. The 1CPU13 obtains the output of the G sensor, determines whether or not exceeding the threshold value _{G abe.} As described above, the G sensor 27 is a two-axis type in the X and Y axis directions, and is configured to be able to detect the gravitational acceleration in the longitudinal direction and the lateral direction of the vehicle 3. Therefore, not only the longitudinal collision accident but also the lateral collision accident can be reliably detected, and the cause can be analyzed. The threshold determination is performed by the vector sum of the gravitational acceleration in the front-rear direction and the gravitational acceleration in the left-right direction. This threshold value can be changed to an arbitrary value by setting.

  In the present embodiment, since the situation in which the drive body 5 incorporating the G sensor 27 cannot be installed completely horizontally is considered, processing for correcting the offset in the front-rear and left-right directions of the G sensor 27 is performed. That is, as shown in FIG. 5, when the LCD controller 28 is connected to the LCD controller connector 22, the drive recorder body 5 shifts from the normal mode to a maintenance mode for setting and inspecting the drive recorder body 5. In this maintenance mode, processing for correcting the front-rear and left-right offsets of the G sensor 27 is executed. When the vehicle 3 travels on a rough road, the vertical vibration is undesirably increased, and it is expected that the G sensor 27 detects gravitational acceleration in the front-rear and left-right directions. Accordingly, the G sensor output value is subjected to processing for observing vertical vibrations on rough roads and reducing false reactions.

FIG. 18 is a diagram illustrating the relationship between the ON signal S3 of the photographing switch 9 and the recording range Rh of the image information recorded on the CF card 11. As a recording condition, when the crew member turns on the photographing switch 9 and switches the switching mode, the second SD-RAM 30 extends over a recording range of up to 30 seconds with reference to the photographing switch-on time TR1 (referred to as trigger occurrence). The JPEG conversion image recorded endlessly, the G sensor output value at the time when the photographing switch is turned on, the position, time, actual empty vehicle and vehicle speed information, and the voice information from the microphone 7 are recorded on the CF card 11. The time (T _bef + T _aft seconds) obtained by adding the recording time T _aft seconds after the occurrence of the trigger to the recording time T _bef seconds before the occurrence of the trigger corresponds to the total time of the recording range in one event. However, when a JPEG converted image or the like is recorded on the CF card 11 using the shooting switch 9 as a trigger, the number of switch operations is limited, and when the predetermined number of operations is reached, the CF card 11 is operated even if the shooting switch 9 is operated thereafter. It is also possible to set the drive recorder body 5 so as not to record.

FIG. 19 is a diagram illustrating the relationship between the reception of a shooting request command through communication and the recording range Rh of image information recorded on the CF card 11. This will be described with reference to FIG. As a recording condition, if there is a radio frequency image capturing request from the center 4 to the control device 2, the first CPU 13 of the drive recorder body 5 receives the signal as a command. Then, a JPEG conversion image recorded endlessly in the second SD-RAM 30 over a recording range of up to 30 seconds with reference to TR2 (referred to as trigger occurrence) at the time of command reception, the G sensor output value at the time of command reception, The position, time, actual sky and vehicle speed information, and voice information from the microphone 7 are recorded on the CF card 11. The time (T _bef + T _aft seconds) obtained by adding the recording time T _aft seconds after the occurrence of the trigger to the recording time T _bef seconds before the occurrence of the trigger corresponds to the total time of the recording range in one event. For example, when the center 4 determines that the speed of the vehicle 3 obtained based on a vehicle speed pulse that is one of the operation data is higher than a predetermined speed, an image recording request from the center 4 is executed. . The parameter resulting from the generation of the trigger is not limited to the vehicle speed pulse. For example, an image recording request may be executed from the center 4 based on operation data of at least one of periodic recording, sudden acceleration, sudden deceleration, and sudden handle. By using the plurality of operation data, it is possible to carry out detailed driving guidance for the crew members at the center 4.

FIG. 20 is a diagram showing an aspect in which the recording range of the audio information recorded on the CF card 11 is defined based on the Hi / Lo signal S4 from the actual vehicle / empty vehicle meter 44. As a recording condition of the audio information, when a Hi signal for switching from an empty vehicle state to an actual vehicle state is output, T _bef seconds (T _bef seconds is several tens of seconds, for example) before the time point TR3 when the Hi signal is output. From the above, the voice information, the actual sky vehicle, and the vehicle speed information recorded in the second SD-RAM 30 as the acquisition means are recorded in the CF card 11. When the Lo signal for switching from the actual vehicle state to the empty vehicle state is output in this recording state, the sound is output until T _aft seconds (T _aft seconds is, for example, several tens of seconds) from the time point TR4 when the Lo signal is output. Information and the like are recorded on the CF card 11. Since the control device 2 detects the signal from the actual vehicle / empty vehicle meter 44, the drive recorder 1 can detect the actual empty vehicle state by serial communication with the control device 2. If the control device 2 is not linked, an on / off signal of the meter of the actual vehicle / empty meter 44 may be taken in as an external switch of the drive recorder 1.

FIG. 21 is a diagram illustrating a mode in which image information is recorded before and after the time point when the Hi signal is output from the actual vehicle / empty vehicle meter 44, and image information is recorded before and after the time point when the Lo signal is output. As a recording condition, when a Hi signal for switching from an empty vehicle state to an actual vehicle state is output, a recording range of a maximum of 30 seconds is used with reference to a time point TR3 (referred to as the occurrence of the first trigger) at which this Hi signal is output. Among the information recorded endlessly in the SD-RAM 30 of 2, voice information and actual empty vehicle information are recorded on the CF card 11. The time Rh (T _bef + T _aft seconds) obtained by adding the recording time T _aft seconds after the first trigger to the recording time T _bef seconds before the first trigger corresponds to the total time of the recording range in one event. A maximum of 30 seconds can be set in a range from 5 seconds to 25 seconds before the first trigger occurrence and from 5 seconds to 25 seconds after the first trigger occurrence.

Further, as a recording condition, when a Lo signal for switching from an actual vehicle state to an empty vehicle state is output, over a recording range of up to 30 seconds with reference to a time point TR4 (referred to as the second trigger occurrence) at which this Lo signal is output, Of the information recorded in the second SD-RAM 30, voice information and actual empty vehicle information are recorded in the CF card 11. A time Rh (T _bef + T _aft seconds) obtained by adding a recording time T _aft seconds after the occurrence of the second trigger to the recording time T _bef seconds before the occurrence of the second trigger corresponds to the total time of the recording range in one event. A maximum of 30 seconds can be set in a range from 5 seconds to 25 seconds before the second trigger occurrence and from 5 seconds to 25 seconds after the second trigger occurrence.

  FIG. 22 is a block diagram for explaining various trigger acquisitions in the drive recorder 1. In the present embodiment, the drive recorder 1 does not directly input the actual empty vehicle information with a switch attached to the drive recorder 1, but acquires it from serial communication from the control device 2 and records it as a trigger. Therefore, the trigger input is the G sensor 27, communication (center 4, actual empty vehicle), photographing switch, and external switch 49.

  Information from the control device 2 is periodically transmitted, and is periodically monitored on the time axis. However, in communication, it becomes a trigger as an interrupt. That is, the trigger from the center 4 and the trigger of the actual empty vehicle are interrupted. Since the on / off signal of the other switch can be input to the external switch 49 input, the on / off signal of the actual empty vehicle switch may be adopted as the external switch input, or the photographing switch (forced switch by the driver) An on / off signal may be adopted as the external switch input. External switch inputs can detect both triggers and conditions. For example, in the case of an actual empty vehicle, a change in the actual empty vehicle can be input as a trigger, and the state of the actual empty vehicle can be captured for recording.

  FIG. 23 is a diagram illustrating a mode in which warning information is issued based on a threshold of operation data. When the first CPU 13 detects an abnormal operation of the vehicle 3 based on the operation data of at least one of the speed, fixed period recording, sudden acceleration, sudden deceleration, and sudden handle of the vehicle 3, warning information is sent to the crew by the buzzer 8. To be notified. After the warning information is notified, a warning is given every 30 seconds while the abnormal operation continues. However, the first CPU 13 prohibits warning by the buzzer 8 during the dispatch instruction from the center 4 to the vehicle 3. A criterion for determining whether or not the vehicle is in abnormal operation is designated in advance using the CF card 11. As shown in FIG. 23, the upper limit E1 and lower limit E2 of the abnormality detection threshold and the abnormality determination time Te are defined as parameters. When the upper limit is exceeded for a predetermined “abnormality determination time” or more, it is determined that the operation is abnormal. In the present embodiment, the warning information is notified by the buzzer 8, but the present invention is not limited to this. A speaker SP (see FIG. 7) is provided as an information output means in the control device 2 or the first drive recorder 1, and voice synthesis output (for example, “exceeding the specified speed. Please decelerate”) is output from the speaker SP. (Composite output) is also possible.

  A case where abnormal operation is detected based on sudden acceleration and sudden deceleration will be described. The first CPU 13 acquires the speed of the vehicle 3, that is, the vehicle speed by a vehicle speed pulse every 0.1 second, for example, and makes a determination based on an acceleration of 1 second. When the acceleration exceeds the determination value, the first CPU 13 notifies the crew member of warning information by the buzzer 8 and records the acceleration on the CF card 11. The first CPU 13 determines “rapid acceleration” when the acceleration is greater than or equal to the specified acceleration, and determines “rapid deceleration” when the acceleration is greater than or equal to the specified deceleration. Two kinds of acceleration / deceleration as judgment criteria can be set for each actual vehicle / empty vehicle.

  A case where abnormal operation is detected due to overspeed will be described. The first CPU 13 acquires the vehicle speed by a vehicle speed pulse, for example, every 0.1 second, and notifies the crew member of warning information by the buzzer 8 when the predetermined speed over determination speed is exceeded and the predetermined warning start time has elapsed. . When the vehicle speed exceeds the specified speed over determination speed and the abnormality determination time Te has elapsed, warning information is notified by the buzzer 8 and the vehicle speed 3 is recorded on the CF card 11. When the vehicle speed is equal to or less than the overspeed determination speed, but the road classification of the general road or the highway is changed from one to the other, the overspeed is canceled. Two types of determination speed and warning start time can be set for each road segment.

  FIG. 24 is a diagram illustrating the relationship between the G sensor output value and the detection time. FIG. 25 is a chart showing a tendency based on the relationship between the magnitude of the G sensor output value and its detection time. When the first CPU 13 does not have the necessary and sufficient free space for the recording capacity of the CF card 11 and the G sensor output value already recorded on the CF card 11 is smaller than the newly detected G sensor output value, the first CPU 13 Control is performed to erase the sensor output value and record the detected G sensor output value on the CF card 11. If the free space of the recording capacity of the CF card 11 is necessary and sufficient, even if the G sensor output value already recorded on the CF card 11 is smaller than the newly detected G sensor output value, the already recorded G The detected G sensor output value is recorded on the CF card 11 without erasing the sensor output value.

  If the G sensor output value is small (for example, 0.4 G or more and less than 2 G) and the detection time is short (for example, several tens of milliseconds), it means that the vehicle 3 has passed through a step or a rough road. If the G sensor output value is small and the detection time is long (for example, 100 milliseconds or more), it means that the vehicle 3 has suddenly braked. When the G sensor output value is large (for example, 2G or more) and the detection time is short, it means that the vehicle 3 has caused an accident. The applicant of the present application stores trend data based on the relationship between the magnitude of the G sensor output value and its detection time in the memory of the center device or the like through experiments or the like.

  FIG. 26 is a flowchart showing a basic operation by G sensor and external switch detection. FIG. 27 is a diagram illustrating the relationship between the threshold of the G sensor output and the determination time. FIG. 28 is a timing chart showing the relationship between the Hi / Lo signal and its determination time. This flow starts under the condition that the ACC signal supplied from the accessory power supply is turned on or the control device 2 is turned on. In step a1 after the start, the first CPU 13 determines whether or not the periodic sensing timing t1 (t1 is, for example, 10 milliseconds) of the G sensor 27 has elapsed (see FIG. 27). If the determination is “NO”, the process proceeds to step a2. When it is determined that t1 has elapsed, the first CPU 13 records the G sensor output value in the second SD-RAM 30 and determines whether or not the G sensor output value is larger than the threshold value in step a4. Judging. If the determination is “NO”, the process returns to step a2.

  When the determination is “NO”, the process proceeds to step a5, and the first CPU 13 determines whether or not a predetermined threshold determination time Tg has elapsed. The threshold determination time Tg is set larger than the sensing timing t1. Timing of the threshold determination time Tg is started from the time when the G sensor output value exceeds the threshold, and when the continuous time exceeding the threshold reaches the time Tg, it is determined that the threshold determination time Tg has elapsed. If it is determined that the threshold determination time Tg has not elapsed, the process returns to step a2. If it is determined that the threshold determination time Tg has elapsed, the process proceeds to step a6. Here, the first CPU 13 detects that the vehicle 3 is driving dangerously. Next, proceeding to step a7, the first CPU 13 causes the CF card 11 to record the image information recorded in the second SD-RAM 30. Thereafter, the process returns to step a1. By providing such a threshold determination time Tg, malfunctions such as noise can be prevented.

  In step a2, the first CPU 13 determines whether or not the periodic sensing timing t2 (t2 is, for example, 100 milliseconds) of the external switch 49 has elapsed (see FIG. 28). When the determination is “NO”, the process returns to step a1. The process proceeds to step a8 when it is determined that t2 has elapsed, the first CPU 13 determines whether or not the external switch 49 is turned on, and returns to step a1 when it is determined as “NO”. If it is determined that the signal is turned on, the process proceeds to step a9, and the first CPU 13 determines whether or not a predetermined signal determination time Tsw has been reached. This signal determination time Tsw is set larger than the sensing timing t2. Timing of the signal determination time Tsw is started from the time when the signal is switched from OFF to ON, and when the continuous time that is ON reaches the time Tsw, it is determined that the signal determination time Tsw has elapsed. If it is determined that the signal determination time Tsw has not elapsed, the process returns to step a1. If it is determined that the signal determination time Tsw has elapsed, the process proceeds to step a10, the first CPU 13 detects the external switch 49, and then proceeds to step a7. By providing the signal determination time Tsw, malfunctions such as noise can be prevented.

  FIG. 29 is a flowchart showing a process for recording voice data, FIG. 29 (a) is a flowchart showing a process for recording voice data before and after the actual empty vehicle change, and FIG. 29 (b) is a voice data in the actual vehicle. It is a flowchart showing the process which records. This flow starts under the condition that the ACC signal supplied from the accessory power supply is turned on or the control device 2 is turned on. As shown in FIG. 29 (a), the first CPU 13 causes the second SD-RAM 30 to endlessly record audio data (synonymous with audio information) in step b1 after the start. Next, proceeding to step b2, the first CPU 13 detects on / off of the actual empty vehicle switch based on the signal from the control device 2. That is, since only the actual / empty state is sent from the control device 2, it is detected on the drive recorder 1 side that the actual vehicle and the empty vehicle have changed.

  Since the drive recorder 1 monitors the status, if an empty vehicle is detected at a certain timing, it is stored, and if an actual vehicle is detected at the next timing, the stored “empty vehicle” information and this time By comparing with the detected “actual vehicle” information, the drive recorder 1 can detect that the vehicle has changed from “empty to actual vehicle”. In this way, the drive recorder 1 can indirectly detect on / off of the actual empty vehicle switch.

If it is determined as “NO” in step b2, the process returns to step b1. The process proceeds to step b3 when it is determined that the time has changed, and the first CPU 13 is an elapsed time including an empty time (T _bef seconds) and a time after the actual vehicle (T _aft seconds) before the time point when the actual vehicle is determined, It is determined whether or not x seconds (x seconds is 30 seconds, for example) have passed before and after the change of the switching mode of the real / empty switch 44. If the determination is “NO”, the process returns to step b1. When determining that the time has elapsed, the first CPU 13 causes the CF card 11 to record the audio data stored in the second SD-RAM 30 over x seconds before and after the change (that is, the time Rh shown in FIG. 21). Thereafter, the process returns to step b1.

  There is a case where a process for recording the voice data in the actual vehicle on the CF card 11 is executed. As shown in FIG. 29B, the process proceeds to step c1 under the same start condition as described above, and the audio data is recorded endlessly in the second SD-RAM 30. Next, in step c2, the first CPU 13 detects on / off of the actual empty vehicle switch based on the signal from the control device 2. That is, since only the actual / empty state is sent from the control device 2, it is detected on the drive recorder 1 side that the actual vehicle and the empty vehicle have changed, as in step b2.

If “NO” is determined in step c2, the process returns to step c1. When it is determined that the vehicle has changed from an empty vehicle to an actual vehicle, the process proceeds to step c3. Here, the first CPU 13 reads the audio data recorded in the second SD-RAM 30 endlessly in the second SD-RAM 30 from the time point when the signal for switching from the empty state to the actual vehicle state is output (in FIG. 20, T _bef seconds). Then, in step c4, the first CPU 13 continuously records the voice data after the actual vehicle determination in the CF card 11. Next, in step c5, the first CPU 13 determines whether the actual vehicle and the empty vehicle have changed. If it is determined as “NO”, the process returns to step c4, and if it is determined in step c5 that the actual vehicle and the empty vehicle have changed, the process proceeds to step c6, and the first CPU 13 stores the audio data after the empty vehicle determination in the CF card 11. After that, the process proceeds to step c7, where the first CPU 13 x2 seconds from the time when the signal for switching from the actual vehicle state to the empty vehicle state is output. (T _aft seconds in FIG. 20) is determined or not, the process returns to step c6 if “no” is determined, and returns to step c1 if x2 seconds have elapsed.

  FIG. 30 is a flowchart showing a first process of outputting synthesized speech by the AVM-ECU. This flow starts under the condition that the ACC signal supplied from the accessory power supply is turned on or the control device 2 is turned on. When the first CPU 13 detects a dangerous driving of the vehicle 3 in step d1 after the start, the process proceeds to step d2 and the first CPU 13 makes a warning sound output request to the second CPU 31 of the control device 2.

  On the control device 2 side, when the second CPU 31 receives the warning voice output request at step E1, at step Eout, the second CPU 31 synthesizes voice to the speaker SP (see FIG. 7). Please output "speech synthesis". While the vehicle 3 is receiving a dispatch instruction from the center 4 (step E2: YES), the second CPU 31 ends this process without causing the speaker SP to output sound. If the vehicle dispatch instruction is not being received, the speech synthesis is output to the speaker SP.

  FIG. 31 is a flowchart showing a second process of outputting synthesized speech by the AVM-ECU. On the control device 2 side, when the second CPU 31 receives a warning sound output request in step E1, the process proceeds to step Em, and the second CPU 31 determines whether or not the actual vehicle is currently in the actual vehicle / empty vehicle meter 44. If the determination is “NO”, the process proceeds to step Eout, and the second CPU 31 causes the speaker SP to output speech synthesis. If it is determined in step Em that the vehicle is in the actual vehicle, the second CPU 31 ends this process without causing the speaker SP to output sound.

  According to the drive recorder 1 according to the present embodiment described above, a plurality of driving information (image, G value, position, time, actual sky vehicle, vehicle speed, voice, etc.) is recorded endlessly in the second SD-RAM 30. In the case of a trigger (G sensor or the like) other than the actual empty vehicle, the image, G value, position, time, actual empty vehicle, vehicle speed, and voice are recorded on the card. In the case of a real empty vehicle trigger, only the voice / real empty vehicle is recorded in the CF card 11. That is, in an actual sky vehicle, since the driver's service attitude to the passenger is seen, the necessary driving information is sufficient from the driver's voice from the microphone in the vehicle and the actual sky vehicle information, and images and vehicle speed are not required. This is because the driver's attitude toward the passenger when the actual empty vehicle changes can be understood by the driver's voice. Therefore, the free capacity of the CF card 11 can be secured as much as possible. As described above, even when a plurality of triggers are taken into the CF card 11, it is possible to take in the driving information most suitable for the actual empty vehicle and eliminate the waste of the recording capacity.

  However, when the camera is directed in the vehicle, that is, to the driver, an image is also recorded on the CF card 11. That is, when capturing a plurality of triggers and recording a plurality of driving information, it is possible to record appropriate driving information according to the contents of the triggers. When the vehicle is actually empty, both the actual vehicle and the empty vehicle are not essential, and either the actual vehicle or the empty vehicle may be applied. Only the driver's customer service attitude at the time of actual vehicle may be recorded at the time of change from empty to actual vehicle. Only the driver's customer service attitude may be recorded when the vehicle changes from the actual vehicle to the empty vehicle. In such a case, the free capacity of the CF card 11 can be further secured, and the waste of recording capacity can be eliminated. Since it is possible to reliably record information related to the customer service attitude corresponding to passengers getting on and off, it is possible to effectively provide driving guidance to the driver.

  According to the drive recorder 1, the sound in the room of the vehicle 3 in the actual vehicle is recorded, but the sound data of x1 second before the actual vehicle is recorded on the CF card 11, and the sound data after elapse of x2 seconds after the empty vehicle is also recorded on the CF card 11. Since it is recorded, it produces the following effects. The manager who manages the operation of the taxi can instruct the crew members to perform the service desired by the passenger in a disciplined manner with respect to the passenger before the actual vehicle / empty vehicle meter 44 is turned into the actual vehicle. Even after the actual vehicle / empty vehicle meter 44 is emptied, the manager can instruct the crew members to perform the same service.

  FIG. 32 is a block diagram showing an electrical configuration of the drive recorder 1 including the serial port 51 for connecting other devices and the like. In the drive recorder 1, the G sensor 27, the command from the center 4, the actual empty vehicle information from the control device 2, and the photographing switch 49 are used as triggers. However, other triggers can also be realized as triggers for recording on the CF card 11, and the drive recorder 1 has an empty port so that a serial (communication) port 51 and an on / off port 52 as input means can be connected to other devices. It is provided as. The external switch can be connected not only to other switches but also to an ECU that outputs an on / off signal.

  The period for monitoring the trigger is set to 10 msec, for example, because it is necessary to detect the trigger early without delay in the case of an accident detection by the G sensor 27. The control device 2 and the other serial port 51 are interrupted, and the photographing switch 49 and the external switch input port 52 have a lower priority than the G sensor 27, and the period for monitoring those triggers is set to, for example, 100 msec (referred to as normal setting). Has been. For example, even when a real empty vehicle switch is input as an external switch input, the trigger monitoring period is set to 100 msec, for example.

  FIG. 33 is a block showing a connection example with the airbag ECU 53. Based on the G value from the G sensor, the airbag ECU 53 that is a vehicle state detection means outputs an ON signal for igniting the squib 54 that is an ignition device when there is a certain level of impact. The drive recorder 1 is configured to capture the ON signal as an external switch input. In the case of the airbag ECU 53, it is a collision detection and it is necessary to detect the trigger without delay. Therefore, when the airbag ECU 53 is connected, the trigger monitoring period is changed from 100 msec to 10 msec. When changing the trigger monitoring period, the CF card 11 is used to upgrade the version. That is, the corresponding port number, trigger cycle, and trigger contents are recorded in the CF card 11, and the drive recorder 1 installs and changes them.

  FIG. 34 shows processing for changing the trigger monitoring period and the like, FIG. 34 (a) is a flowchart thereof, and FIG. 34 (b) is a map showing trigger periods corresponding to various triggers. This flow starts under the condition that the ACC signal supplied from the accessory power supply is turned on. After the start, the process moves to step f1, and the first CPU 13 determines whether or not a new trigger has been added. The process ends when the determination is “NO”. The first CPU 13 moves to step f2 by determining that it has been added, and the port number, trigger period (change from 100 msec to 10 msec) and trigger content (airbag activation, etc.) recorded on the CF card 11 Write to the first ROM (flash ROM) 14. Thereafter, this process is terminated. However, instead of the flowchart of FIG. 34 (a), as shown in FIG. 34 (b), trigger cycles corresponding to various triggers can be stored in the first ROM 14 of the drive recorder 1 as a map.

  FIG. 35 is a flowchart showing processing for recording an image and sound on the CF card 11 when the airbag is activated. This flow starts under the condition that the ACC signal supplied from the accessory power supply is turned on. In step g1 after the start, the first CPU 13 reads the program in the first ROM 14 and then proceeds to step g2. Actually, the first CPU 13 operates in accordance with the program. Here, the first CPU 13 determines whether or not the trigger monitoring period is every 10 msec, that is, whether or not the monitoring timing has come. If the determination is “NO”, the process returns to step g2. When it is determined every 10 msec, the process proceeds to step g3, and the first CPU 13 determines whether or not the airbag is activated. If the determination is “NO”, the process returns to step g2. If it is determined that there is, the first CPU 13 causes the CF card 11 to record an image and a sound. Thereafter, the process returns to step g2. Although not shown, other triggers such as the G sensor 27 are also monitored at a predetermined trigger monitoring cycle.

  FIG. 36 is a block showing a connection example (1) with the security ECU 55. In the case of security, it shifts to the monitoring mode when the door is locked and the IG is off. Whether or not the door is locked is determined by the door lock / unlock detection switch 60. The security ECU 55, which is a vehicle state detection means, outputs an ON signal to sound the buzzer 56 when a glass break or intrusion in the vehicle is detected by the sensors 58 and 59 in the monitoring mode. The drive recorder 1 according to the present embodiment records images (images inside and outside the vehicle) and sound on the CF card 11 during security operation when the ON signal is captured as an external input. In security, since the mode shifts to the monitoring mode when the IG is off, the drive recorder 1 is activated by outputting a start signal from the security ECU 55 to the drive recorder 1 even when the IG is off.

  In the case of security, the monitoring period of the trigger is 100 msec, but the port to be monitored when the IG is off is only an external input switch, and it is not necessary to look at other ports such as the G sensor 27 and the control device 2. This is because the vehicle is stopped and does not need to be monitored. Therefore, the processing load on the first CPU 13 can be reduced and the power consumption can be reduced. Since the method for newly connecting the security ECU 55 is the same as that for the airbag ECU 53, a description thereof will be omitted.

  FIG. 37 is a flowchart showing a process for monitoring only the external input SW. This process starts under the condition (ACC ON) for starting the drive recorder 1 by outputting a start signal from the security ECU 55 to the drive recorder 1. After the start, the process proceeds to step h1, and the first CPU 13 reads the contents of the first ROM 14 and then proceeds to step h2. Here, the first CPU 13 determines whether or not the IG is on. If the determination is “NO”, that is, if the vehicle operation is stopped when IG is OFF, the process proceeds to step h3, and if it is determined that IG is ON, the process proceeds to step h4. In step h <b> 4, the first CPU 13 executes a process of recording on the CF card 11 when there is a normal trigger input.

  In step h3, the first CPU 13 determines whether or not the trigger cycle is every 100 msec, that is, whether or not it is a monitoring timing. When the determination is “NO”, the process returns to step h2. If it is determined every 100 msec, the process proceeds to step h5, and the first CPU 13 determines whether there is a security activation (there is an alarm signal). When the determination is “NO”, the process returns to step h2. When it is determined that the security is activated, the process proceeds to step h6, and the first CPU 13 records the image and sound on the CF card 11. Thereafter, the process returns to step h2. Therefore, when the IG is off, the process does not proceed to step h4, and monitoring of other triggers is ignored.

  FIG. 38 is a block illustrating an example of connection with a plurality of devices. If the serial communication port 51 of the drive recorder 1 is applied, not only trigger input but also information input / output can be performed. For example, when there is a trigger from an airbag, the impact degree from the airbag ECU 53 and traffic information (congestion information, etc.) from the audio navigation system 57 are taken in, and the drive recorder 1 records them on the CF card 11. Accident analysis can be performed in more detail.

  According to the drive recorder 1 described above, when the on / off port 52 receives a signal from the airbag ECU 53 or the security ECU 55, the first CPU 13 performs control to record the input signal on the CF card 11 as a trigger. In particular, the on / off port 52 can input a signal from another vehicle state detection means different from the detection means for detecting that the vehicle 3 is in a predetermined state, so that the drive recorder is manufactured again from the beginning. There is no need, and the cost can be reduced accordingly. Therefore, it is possible to provide a versatile drive recorder that can be easily added even when an additional trigger is requested.

  Since the timing for monitoring whether or not there is a signal indicating that the airbag is to be deployed can be set earlier than the preset monitoring timing, the trigger monitoring cycle is appropriately changed according to the trigger content be able to. Since it is monitored whether or not there is a signal for giving an alarm when the vehicle is stopped and monitoring of other unnecessary triggers is ignored when the vehicle is stopped, the contents of the monitor trigger can be limited according to the vehicle state. . Therefore, the processing load on the first CPU 13 can be reduced.

  FIG. 39 is a block diagram illustrating a connection example (2) between the security ECU 55 and the drive recorder 1 according to the embodiment of the present invention. The description according to the present embodiment also includes the description of the driving information recording method. This will be described with reference to FIG. The security ECU 55 includes a glass break sensor 58 that detects glass breakage of the vehicle, an intrusion sensor 59 that detects intrusion into the vehicle by radio waves and ultrasonic waves, a door courtesy switch 66 that detects the open / closed state of the door, a vehicle battery (BATT in the figure). And an ignition switch (denoted as IG SW in the figure) and the like. The security ECU 55 receives a lock or unlock request signal from the transmitter RS, and controls the vehicle door to be switched between a locked state and an unlocked (unlocked) state. The security ECU 55 is electrically connected to the buzzer 56 in order to output a signal for sounding the buzzer 56, and further electrically connected to a drive source 61 that drives (that is, locks) the door lock mechanism. The drive recorder 1 is previously provided with a port 62 and the like for taking in a so-called lock signal from the security ECU 55 to the drive source 61 as an external input.

  When the security ECU 55 receives the lock request signal together with the ID code (ID: Identification) from the transmitter RS, the security ECU 55 compares the ID code stored in advance in the security ECU 55 with the received ID code. A lock signal is output to the drive source 61 to lock the door and shift to the theft monitoring mode. In the theft monitoring mode, the glass break sensor 58, the intrusion sensor 59, and the door courtesy switch 66 determine whether the theft has occurred. When the theft occurrence is detected, the mode is shifted to the alarm mode, and the security ECU 55 outputs an alarm signal to sound the buzzer 56.

  The drive recorder 1 is configured to be activated by the lock signal, for example. For this reason, the lock signal is input to the OR circuit 47 of FIG. 13 together with other inputs (such as ACC). That is, the ACC signal, the power-on signal, and the lock signal according to the present embodiment can be supplied to the input side of the OR circuit 47, respectively. The first CPU 13 of the drive recorder 1 is configured to monitor whether there is an alarm signal when the drive recorder 1 is activated by the lock signal. When the first CPU 13 determines that there is an alarm signal, the first ROM 14 is a flash ROM that can rewrite images, sounds, and the like stored cyclically in the second SD-RAM 30 using the alarm signal as a trigger before and after the occurrence of the trigger. Control to record. The first ROM 14 corresponds to a storage medium inside the driving information recording device.

  FIG. 40 is a flowchart showing processing for recording an image or the like in the first ROM 14 based on a lock signal or the like. This process starts when the power of the drive recorder main body 5 is turned on by ACC or the like or a lock signal or the like. After the start of this process, the process proceeds to step i1, and the first CPU 13 outputs a power control signal S2 (see FIG. 13). Next, the process proceeds to step i2, and the first CPU 13 determines whether or not the IG is on in order to distinguish whether or not the vehicle is in operation.

  If IG is turned on, that is, the vehicle is in operation, the process proceeds to step i3. If it is determined that the vehicle is not in operation, the process proceeds to step i4a. In step i4a, the first CPU 13 determines whether or not the lock signal is taken in as an external input in order to distinguish whether or not the normal control shown in FIG. If the determination is “NO”, the process proceeds to step i7, and the first CPU 13 waits for T1 seconds after the ACC signal is turned off (PL1 in FIG. 41) so that the drive recorder 1 can record data even if the ACC signal is turned off. Control is performed to turn off the power supply control signal S2 (that is, normal control shown in FIG. 12 is executed). Thereafter, the process returns to step i2.

  In step i4a, the first CPU 13 determines that it is a security set when it receives a lock signal from the security ECU 55 to the drive source 61 as an external input, and then proceeds to step i8 to periodically perform security activation, that is, whether an alarm signal is output. For example, the first CPU 13 determines whether or not every “100 msec”. However, it is not necessarily limited to every 100 msec. If the determination is “NO”, the process returns to step i2.

  If it is determined every 100 msec, the process proceeds to step i9, where the first CPU 13 determines the presence or absence of an alarm signal as a trigger for recording images, sounds, and the like. If it is determined that no alarm signal is output, the process returns to step i2. If there is an alarm signal output, that is, it is determined that theft has occurred, the process proceeds to step i10. In this step, the first CPU 13 executes a process for causing the first ROM 14 to record driving information such as images and sounds stored in the second SD-RAM 30. Thereafter, the process returns to step i2. By recording the operation information in the first ROM 14 instead of the CF card 11 when a theft occurs, the recording medium can be prevented from being taken away by a thief.

  If it is determined in step i2 that IG is on, that is, during driving, the first CPU 13 performs normal recording processing during driving of the vehicle. That is, when there is a trigger input, a process for recording driving information such as an image stored in the second SD-RAM 30 on the CF card 11 is executed. Next, the process proceeds to step i5, and the first CPU 13 determines whether or not there is an instruction to output the driving information recorded in the first ROM 14. If there is no output instruction, the process returns to step i2. If it is determined that there is an output instruction, the process proceeds to step i6, and the operation information recorded in the first ROM 14, that is, the security record, is recorded in the CF card 11 in step i10.

  FIG. 41 shows a timing chart. FIG. 41A shows a state in which the first CPU 13 determines that there is a lock signal in a state where the power control signal S2 is turned off after T1 seconds have elapsed after the ACC signal is turned off (PL1). A timing chart shown in FIG. 41B is a timing chart showing a form in which the first CPU 13 determines that there is a lock signal before the lapse of T1 seconds after the ACC signal is turned off (PL1).

  As shown in FIGS. 41A and 41B, the first CPU 13 counts the time when the ACC signal is off (PL1). When the ACC signal is off, the power supply control signal S2 is kept on. As shown in FIG. 41 (b), when the first CPU 13 determines that there is a lock signal (that is, a security set) before the lapse of T1 seconds after the ACC signal is turned off (PL1), the first CPU 13 maintains the on state of the power control signal S2. As shown in FIG. 41A, the first CPU 13 turns off the power supply control signal S2 from the on state after T1 seconds have elapsed after the ACC signal is turned off (PL1). Thereafter, when there is a lock signal, that is, when security is set, the first CPU 13 turns on the power control signal S2.

  According to the connection example (2) between the security ECU 55 and the drive recorder described above, the drive recorder 1 is activated by the lock signal output from the security ECU, in other words, not the dedicated signal but the original theft monitoring state. The drive recorder 1 can be activated using a signal indicating this. As shown in step i4a of FIG. 40, the first CPU 13 determines that the security is set when the lock signal from the security ECU 55 to the drive source 61 is taken as an external input (step i4a: YES). Therefore, the wiring connection of the drive recorder 1 can be simplified (without modifying the security ECU 55 or the like), and the number of parts and the number of man-hours can be reduced as compared with those using the dedicated signal.

  After the security is set (step i4a: YES), the presence or absence of the alarm signal output is determined every minute time (for example, every 100 msec), so that the security can be improved. In step i10 in FIG. 40, the security record recorded in the first ROM 14 inside the drive recorder is recorded in the CF card 11 in step i6, so that the CF card 11 can be easily and reliably provided to a center device or various institutions. be able to.

  After the operation information recorded in the first ROM 14 is turned off after the ACC signal is turned on, for example, by pressing and holding the shooting switch 9 within a certain time (T2 seconds = 15 seconds) (for example, 4 seconds to 15 seconds), the CF It is also possible to copy or move to the card 11. Thereafter, the operation information recorded on the CF card 11 can be easily and quickly analyzed at the center or the like. That is, driving information can be analyzed easily and quickly without removing the drive recorder 1 from the vehicle, and convenience can be improved.

  A secondary battery BATT2 (see FIG. 39) different from the battery provided in the vehicle is provided inside the drive recorder, and when the IG is off and the security is activated, the activated state of the drive recorder 1 is continued by the secondary battery BATT2. It may be configured. Alternatively, when the first CPU 13 determines that the battery has reached a predetermined voltage value (for example, 10 V or less), the first CPU 13 may perform control to switch the power source of the drive recorder 1 from the battery attached to the vehicle to the secondary battery BATT2. According to such a configuration, it is possible to improve the certainty of continuing the activated state of the drive recorder 1.

  FIG. 42 is a block diagram illustrating a connection example (3) between the security ECU 55 and the drive recorder 1 according to the embodiment of the present invention. In the connection example (2) shown in FIG. 39 described above, the drive recorder takes in the lock signal output from the security ECU 55 as an external input. However, in the connection example (3) according to the present embodiment, the drive recorder 1 The security ECU 55 captures, as an external input, a monitoring signal output to a light emitting diode 63 (abbreviated as LED: Light Emitting Diode) provided, for example, on the dashboard of the vehicle during the theft monitoring mode.

  The drive recorder 1 according to the present embodiment is provided with a port 64 that takes in the monitoring signal as an external input in advance. The drive recorder 1 is configured to be activated by, for example, the monitoring signal, and the first CPU 13 of the drive recorder 1 is configured to monitor whether or not there is an alarm signal when the drive recorder 1 is activated by the monitoring signal. Has been. Also in the connection example (3) according to the present embodiment, the wiring connection of the drive recorder 1 can be simplified and the number of parts and the number of man-hours can be reduced as compared with the connection example using the dedicated signal.

  In the connection example (2) shown in FIG. 39 described above, in step i4a of FIG. 40, the first CPU 13 determines whether or not the lock signal is taken as an external input. On the other hand, in this connection example (3) shown in FIG. 42, in step i4a of FIG. 40, the first CPU 13 determines whether or not the monitoring signal is taken as an external input. If it is determined as “NO”, the process proceeds to step i7. When the monitoring signal is captured, the process proceeds to step i8. In the flowchart of this connection example (3), except for step i4a, the same start conditions and the same steps as those in the flowchart of FIG.

  The first CPU 13 may determine whether at least one of the monitoring signal and the lock signal is taken as an external input. In this case, even when the wiring to the LED 63 is disconnected, the first CPU 13 can determine whether or not the lock signal is taken in as an external input in step i4a as in the connection example (2). Therefore, the security can be further improved as compared with a mode in which only the monitoring signal is taken as an external input.

  FIG. 43 is a block diagram illustrating a connection example (4) between the security ECU 55 and the drive recorder according to the embodiment of the present invention. The drive recorder 1 of the connection example (4) according to the present embodiment is provided with a setting switch 65 for setting whether or not the security ECU 55 is electrically connected.

  FIG. 44 is a flowchart showing processing for recording an image or the like in the first ROM 14 based on the setting switch 65 or the like. The starting condition of this process is to turn on the power of the drive recorder body 5 by an ACC signal or the like. In this flowchart, the same steps as those in the flowchart described in FIG. 40 are denoted by the same step numbers, and the description thereof is omitted. If it is determined in step i2 that the vehicle is not operating, the process proceeds to step i4b, and the first CPU 13 determines whether or not the security ECU 55 is electrically connected based on the setting switch 65.

  Specifically, in step i4b, when the first CPU 13 determines that it is not electrically connected to the security ECU 55 (step i4b: NO), the process proceeds to step i7, and the first CPU 13 waits for T1 seconds after the ACC signal is turned off. Control is performed to turn off the power supply control signal S2, that is, normal control shown in FIG. 12 is executed. In step i4b, when determining that the first CPU 13 is electrically connected to the security ECU 55 (step i4b: YES), the first CPU 13 proceeds to step i8.

  According to the connection example (4) described above, it is possible to realize a system that can freely and easily select an electrical connection with the security ECU 55. Thus, a highly versatile drive recorder can be realized. For example, the setting switch 65 can also be used as the photographing switch 9 or the like. For example, the photographing switch 9 may be switched to the setting switch in the maintenance mode. In this case, the number of parts of the drive recorder can be reduced and the manufacturing cost can be reduced. In the drive recorder 1, whether to maintain or cancel the electrical connection with the security ECU 55 may be set based on the setting program recorded on the CF card 11. The setting program can be recorded on the CF card 11 using the center device. For example, the setting program can be recorded in advance in the first ROM 14 of the drive recorder main body 5. Even with such a configuration, it is possible to realize a system capable of freely and easily selecting an electrical connection with the security ECU 55.

It is a perspective view showing the relationship between the drive recorder 1 and the control apparatus 2 which concern on the 1st Embodiment of this invention. It is the perspective view of the modified form which changed the drive recorder 1 partially. FIG. 4 is a diagram for explaining a camera mounting position on a vehicle 3. 4A is a diagram showing the center 4, FIG. 4A is a diagram showing the center device configuration, and FIG. 4B is a diagram in which a traveling locus, a captured image, and a G sensor measurement value of the vehicle 3 are output to the display 4a. It is a figure showing an aspect. 1 is a perspective view of a drive recorder 1. FIG. 1 is a front view of a drive recorder 1. FIG. 2 is a block diagram showing an electrical configuration of a drive recorder 1, a control device 2, and a center 4. FIG. 2 is a block diagram showing an electrical configuration of the drive recorder 1. FIG. 3 is a block diagram illustrating an electrical configuration of a control device 2. FIG. 3 is a block diagram illustrating an electrical configuration of a main part of the control device 2. 2 is a block diagram illustrating an electrical configuration of a main part of the drive recorder 1. FIG. It is a figure explaining the delay circuit which resets by hardware, when a watchdog pulse stops or does not operate | work with a regular period. It is a block diagram showing the electric constitution of the principal part concerning the modification which changed drive recorder 1 partially. It is a figure showing the relationship between a part of image information, position information, etc. It is a figure showing the aspect by which still image information is recorded on the CF card 11 at fixed intervals (delta) based on G sensor output value. 6 is a diagram illustrating a relationship between a G sensor output value 48 that exceeds a threshold and a recording range Rh of image information recorded on the CF card 11. FIG. It is a figure for demonstrating the threshold value determination method of G sensor output value. 6 is a diagram illustrating a relationship between an ON signal S3 of the photographing switch 9 and a recording range Rh of image information recorded on the CF card 11. FIG. 6 is a diagram illustrating a relationship between reception of a shooting request command by communication and a recording range Rh of image information recorded on the CF card 11. FIG. It is a figure showing the aspect by which the recording range of the audio | voice information recorded on the CF card 11 is prescribed | regulated based on the Hi / Lo signal S4 from the actual vehicle / empty vehicle meter.

It is a figure showing the aspect by which image information is recorded before and after the time of outputting the Hi signal from the actual vehicle / empty vehicle meter 44, and before and after the time of outputting the Lo signal. It is a block diagram explaining the various acquisition of a trigger in the drive recorder. It is a figure showing the aspect which emits warning information based on the threshold value of operation data. It is a figure showing the relationship between G sensor output value and detection time. It is a chart showing the tendency based on the relationship between the magnitude of G sensor output value and its detection time. It is a flowchart showing the basic operation | movement by G sensor and external switch detection. It is a figure showing the relationship between the threshold value of G sensor output, and its determination time. It is a timing chart showing the relationship between a Hi / Lo signal and its determination time. FIG. 29A is a flowchart showing a process for recording voice data, FIG. 29A is a flowchart showing a process for recording voice data before and after the actual empty vehicle change, and FIG. 29B is a process for recording voice data in the actual vehicle. It is a flowchart showing. It is a flowchart showing the 1st process which outputs a synthetic | combination voice with a control apparatus. It is a flowchart showing the 2nd process which outputs a synthetic | combination voice with a control apparatus. 2 is a block diagram showing an electrical configuration of a drive recorder 1 including a serial port 51 for connecting other devices and the like. FIG. 4 is a block showing an example of connection with an airbag ECU 53. FIG. 34A shows a process for changing the trigger monitoring period and the like, and FIG. 34B is a map showing trigger periods corresponding to various triggers. 6 is a flowchart showing a process for recording an image and sound on the CF card 11 when the airbag is activated. It is a block showing the connection example (1) with security ECU55. It is a flowchart showing the process which monitors only an external input switch. It is a block showing the example of a connection with multiple apparatuses. FIG. 6 is a block diagram illustrating a connection example (2) between the security ECU 55 and the drive recorder 1 according to the embodiment of the present invention. 4 is a flowchart showing processing for recording an image or the like in the first ROM 14 based on a lock signal or the like.

41A shows a timing chart. FIG. 41A is a timing chart showing a mode in which the first CPU 13 determines that there is a lock signal in a state in which the power control signal S2 is turned off after T1 seconds have elapsed after the ACC signal is turned off (PL1). FIG. 41B is a timing chart showing a form in which the first CPU 13 determines that there is a lock signal before the lapse of T1 seconds after the ACC signal is turned off (PL1). FIG. 10 is a block diagram illustrating a connection example (3) between the security ECU 55 and the drive recorder 1 according to the embodiment of the present invention. FIG. 10 is a block diagram illustrating a connection example (4) between the security ECU 55 and the drive recorder 1 according to the embodiment of the present invention. 4 is a flowchart showing a process for recording an image or the like in the first ROM 14 based on a setting switch 65 or the like.

Explanation of symbols

1 drive recorder 11 CF card 12 first RAM
13 First CPU
14 First ROM
52 On-off port 53 Airbag ECU
55 Security ECU
65 Setting switch

Claims (6)

A signal from a means for cyclically storing driving information relating to vehicle driving in the storage means and a signal from a detection means for detecting that the vehicle has entered a predetermined state is input, and the signal is stored in the storage means as a trigger. A driving information recording apparatus comprising means for recording the driving information on a recording medium,
Input means capable of inputting a signal from another vehicle state detection means different from the detection means;
Control means for controlling the signal input from the input means to record on the recording medium as a trigger,
The input means can input a signal for performing an alarm from a security control means for performing an alarm at the time of vehicle theft detection,
The operation information recording device is configured to be activated by a signal indicating that the security control unit outputs a theft monitoring state.
The control means monitors whether or not there is an alarm signal in a state where the driving information recording device is activated by the signal, and controls to record the driving information stored in the storage means by using the alarm signal as a trigger. An operation information recording device characterized by the above. A signal from a means for cyclically storing driving information relating to vehicle driving in the storage means and a signal from a detection means for detecting that the vehicle has entered a predetermined state is input, and the signal is stored in the storage means as a trigger. A driving information recording apparatus comprising means for recording the driving information on a recording medium,
Input means capable of inputting a signal from another vehicle state detection means different from the detection means;
Control means for controlling the signal input from the input means to record on the recording medium as a trigger,
The input means can input a signal for performing an alarm from a security control means for performing an alarm at the time of vehicle theft detection,
When a signal indicating that a theft monitoring state output by the security control means is input to the driving information recording device within a predetermined time after the accessory signal of the vehicle is turned off,
The control means continues the activation state of the operation information recording device, monitors whether there is an alarm signal in the activation state, and records the operation information stored in the storage means using the alarm signal as a trigger. An operation information recording apparatus characterized by controlling the operation. A signal from a means for cyclically storing driving information relating to vehicle driving in the storage means and a signal from a detection means for detecting that the vehicle has entered a predetermined state is input, and the signal is stored in the storage means as a trigger. A driving information recording apparatus comprising means for recording the driving information on a recording medium,
Input means capable of inputting a signal from another vehicle state detection means different from the detection means;
Control means for controlling the signal input from the input means to record on the recording medium as a trigger,
The input means can input a signal for performing an alarm from a security control means for performing an alarm at the time of vehicle theft detection,
The control means and the security control means are configured to be set in an electrical connection state or a non-connection state, and the control means has a function of determining whether or not the connection state is present,
The control means, when connected to the security control means, continues the activation state of the driving information recording device after turning off the accessory signal of the vehicle, and monitors whether there is an alarm signal in the activation state, An operation information recording apparatus that controls to record the operation information stored in the storage means using an alarm signal as a trigger. Further comprising a storage medium inside the operation information recording device,
The control means controls the operation information stored in the storage means by using an alarm signal as a trigger so as to be recorded on a storage medium inside the operation information recording apparatus without being recorded on the recording medium. The driving | operation information recording apparatus as described in any one of 1-3.   5. The driving information recording apparatus according to claim 4, wherein the control means controls the driving information stored in the storage medium to be recorded on the recording medium by a predetermined operation.   The operation information recording apparatus according to claim 1, further comprising a secondary battery inside the operation information recording apparatus, wherein the secondary battery continues the activation state of the operation information recording apparatus. apparatus.

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