CN100585644C - Driving information recording apparatus - Google Patents
Driving information recording apparatus Download PDFInfo
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- CN100585644C CN100585644C CN200610144777A CN200610144777A CN100585644C CN 100585644 C CN100585644 C CN 100585644C CN 200610144777 A CN200610144777 A CN 200610144777A CN 200610144777 A CN200610144777 A CN 200610144777A CN 100585644 C CN100585644 C CN 100585644C
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Abstract
There is provided a driving information recording apparatus having high versatility in which the requested trigger can be added in a simple fashion. When an ON/OFF port admits the input of a signal from an airbag ECU, a primary CPU conducts a control such that recording in a CF card is implemented using the signal inputted as a trigger. In particular, since the ON/OFF port is made to admit the input of a signal from another vehicle state detecting unit which is different from a detecting unit for detecting that a vehicle is put in a predetermined state, a drive recorder does not have to be re-fabricated from the beginning.
Description
Technical field
The present invention relates to driving information recording apparatus, relate in particular to the technology that improves its versatility etc.
Background technology
In the past, following taxi dispatching system had been put to practicality, and this taxi dispatching system adopts for example digital radio set of 400MHz frequency band, enlarged data traffic, had improved the collection precision of vehicle position information and multidate information.According to this taxi dispatching system,, therefore, can seek taxi user's convenience, and improve vehicle scheduling responsible official and steward's professional efficient owing to improved the collection precision of vehicle position information etc.In addition, following technology has been proposed also: circulation registration of vehicle state (endless), when accident such as Vehicular impact takes place, stop the round-robin record, before this information is recorded (for example with reference to Japanese kokai publication sho 63-16785 communique) in other recording mediums.
In Japanese kokai publication sho 63-16785 communique, just decision when wanting with new viewpoint analysis accident etc. in vehicular manufacturer or carrier etc., need be appended other triggers as the trigger (trigger) of the triggering of this switching again during fabrication.Therefore, need start anew to make again drive recorder (drive recorder), cost is very big.
Summary of the invention
The objective of the invention is to, even provide a kind of request to append the high driving information recording apparatus of versatility that trigger also can append simply.
The present invention is a kind of driving information recording apparatus, has: will store the unit of storage unit about the driving information of vehicle drive into touringly; And the signal of the detecting unit that detects from the situation that vehicle has been in predetermined state of input, with this signal as trigger, will be stored in the unit of driving information recording in the recording medium that can plug in this storage unit, it is characterized in that, comprising:
Input block can be imported the signal from other the vehicle-state detecting units different with above-mentioned detecting unit; And
Control module, according to imported by above-mentioned input block, from the kind of the signal of vehicle-state detecting unit, to in aforementioned recording medium, write down the condition enactment of driving information in aforementioned recording medium, will be from the signal of above-mentioned input block input as trigger, read from aforementioned recording medium based on correspondence, from the condition of the kind of the signal of vehicle-state detecting unit, with driving information recording in aforementioned recording medium.
According to the present invention, when to input block input during from the signal of vehicle-state detecting unit, control module is controlled, and is trigger with the signal of being imported, and the driving information recording that will be stored in said memory cells is to aforementioned recording medium.Especially, input block can be imported the signal from other the vehicle-state detecting units different with detecting unit, therefore, needn't start anew to make again drive recorder, can realize that the cost of appropriate section reduces.Therefore, even can provide a kind of request to append the high driving information recording apparatus of versatility that trigger also can simply append.
In addition, the invention is characterized in, the air bag controlled unit of deployment balloon when above-mentioned input block can be from Vehicular impact, the input expression makes the signal of airbag deployment.
According to the present invention, use the air bag controlled unit as the vehicle-state detecting unit, control module is controlled, and the signal that expression is made airbag deployment arrives aforementioned recording medium as trigger with above-mentioned driving information recording.So just can improve the versatility of driving information recording apparatus.
In addition, the invention is characterized in, in above-mentioned control module, can monitor the timing that whether has expression to make the signal of airbag deployment, set the timing that monitors that than predefined timing is Zao for.
According to the present invention,, therefore, can suitably change the monitoring period of trigger according to the content of trigger owing to can set for regularly with monitoring the timing that whether has expression to make the signal of airbag deployment early than predefined supervision.
In addition, the invention is characterized in the safety practice control module that above-mentioned input block can carry out alarm when detecting vehicle theft, the signal that input is carried out alarm.
According to the present invention, will carry out when detecting vehicle theft alarm the safety practice control module make signal that alarm carries out as trigger, with above-mentioned driving information recording to aforementioned recording medium.So just can improve the versatility of driving information recording apparatus.
In addition, the invention is characterized in that above-mentioned control module monitors whether to have and detects the signal that vehicle is in the detecting unit of specified states in vehicle drive; When stopping, vehicle drive only monitors the signal that alarm is carried out.
According to the present invention, owing to monitor whether the signal that alarm is carried out is arranged, ignore the supervision of unwanted other triggers when vehicle drive stops, therefore, can limit the content that monitors trigger according to vehicle-state.Therefore, can reduce the processing load of control module.
In addition, the invention is characterized in,, start this driving information recording apparatus according to signal above-mentioned safety practice control module output, that represent to have become the theft monitored state.Above-mentioned control module is controlled, by above-mentioned signal enabling under the state of driving information recording apparatus, whether monitor has alarm signal, and with this alarm signal as trigger, be recorded in the driving information of storing in the said memory cells.
According to the present invention, can become the signal of stealing monitored state according to expression and start driving information recording apparatus, in other words, be not to use special signal, and be to use original theft supervisory signal, start driving information recording apparatus.Therefore, compare with adopting above-mentioned special signal, the wiring that can simplify driving information recording apparatus connects, and can realize the part number of packages reduction and man-hour number reduction.
In addition, the invention is characterized in, in the predefined time after the auxiliary signal of this vehicle disconnects, imported to driving information recording apparatus under the situation of the signal that above-mentioned safety practice control module is exported, that expression has become the theft monitored state,
Above-mentioned control module is controlled, and continues the starting state of this driving information recording apparatus, monitors whether alarm signal is arranged under above-mentioned starting state, and this alarm signal as trigger, is recorded in the driving information of storing in the said memory cells.
According to the present invention, because in the predefined time after auxiliary signal disconnects, imported to driving information recording apparatus under the situation of theft supervisory signal, control module continues the starting state of this driving information recording apparatus, and whether monitor has alarm signal under above-mentioned starting state.Can use original theft supervisory signal to continue the starting state of driving information recording apparatus like this.Therefore, the wiring that can simplify driving information recording apparatus connects, and can realize the part number of packages reduction and man-hour number reduction.
In addition, the invention is characterized in that above-mentioned control module and safety practice control module can be set to status of electrically connecting or notconnect state, above-mentioned control module has the function that judges whether to above-mentioned connection status,
Above-mentioned control module is controlled, when being connection status with the safety practice control module, after the auxiliary signal of this vehicle disconnects, continue the starting state of this driving information recording apparatus, whether supervision has alarm signal under above-mentioned starting state, this alarm signal as trigger, is recorded in the driving information of storing in the said memory cells.
According to the present invention, can when being in connection status, control module and safety practice control module after auxiliary signal disconnects, continue the starting state of driving information recording apparatus.When under above-mentioned starting state, alarm signal being arranged, be recorded in the driving information of storing in the storage unit.
In addition, the invention is characterized in also have storage medium in driving information recording apparatus inside,
Above-mentioned control module is controlled, and alarm signal as trigger, is not to record in the aforementioned recording medium with the driving information that is stored in the said memory cells, but records in the storage medium of driving information recording apparatus inside.
According to the present invention, when alarm signal, driving information is not to be recorded in recording medium, but is recorded in the storage medium of driving information recording apparatus inside, therefore, can further improve security.
In addition, the invention is characterized in that above-mentioned control module is controlled,, will be stored in driving information recording in the above-mentioned storage medium in aforementioned recording medium by preset operation.
According to the present invention, can pass through preset operation, the driving information recording that is stored in storage medium in recording medium, therefore, can be fetched into this recording medium that vehicle is external to be used etc. for analyzing.So just can improve convenience.
In addition, the invention is characterized in also have secondary cell, continue the starting state of this driving information recording apparatus by this secondary cell in driving information recording apparatus inside.
According to the present invention, can continue the starting state of driving information recording apparatus by secondary cell, therefore, and even if the accumulator that is arranged in the vehicle is consumed totally, also reliable recording driving information more.
Description of drawings
By following detailed explanation and accompanying drawing, it is clear and definite that purpose of the present invention, characteristic and advantage will become.
Fig. 1 is the drive recorder of expression the 1st embodiment of the present invention and the stereographic map of the relation between the control device.
Fig. 2 is the stereographic map of the alter mode behind partial alteration's drive recorder.
Fig. 3 is used to illustrate the figure that the camera station of camera is installed to vehicle.
Fig. 4 A and Fig. 4 B are the figure at expression center, and Fig. 4 A is the figure of expression central apparatus structure, and Fig. 4 B is the figure of expression to a kind of situation of driving trace, photographs and the G measurement value sensor of display output vehicle.
Fig. 5 is the stereographic map of drive recorder.
Fig. 6 is the front elevation of drive recorder.
Fig. 7 is the block diagram of the electrical structure at expression drive recorder, control device and center.
Fig. 8 is the block diagram of the electrical structure of expression drive recorder.
Fig. 9 is the block diagram of the electrical structure of expression control device.
Figure 10 is the block diagram that the expression control device is wanted the electrical structure of portion.
Figure 11 is the block diagram that the expression drive recorder is wanted the electrical structure of portion.
Figure 12 is the figure that the delay circuit that resets by hardware when monitoring pulse (watchdog pulse) stops or being failure to actuate in the cycle of pre-fixing is described.
Figure 13 is that the alter mode behind the expression partial alteration drive recorder is related, the block diagram of the electrical structure of wanting portion.
Figure 14 is the figure of the relation of the part of presentation video information and positional information etc.
Figure 15 be expression according to the G sensor output value at regular intervals δ information for still picture is recorded the figure of the situation in the CF card.
Figure 16 is that expression surpasses the G sensor output value of threshold value and the figure of the relation of the recording interval Rh of the image information that is recorded in the CF card.
Figure 17 is the figure that is used to illustrate the threshold determination method of G sensor output value.
Figure 18 is the connection signal S3 of expression photography switch and the figure of the relation of the recording interval Rh of the image information that is recorded in the CF card.
Figure 19 is that expression utilizes the photography request instruction of communication to receive and be recorded in the figure of relation of recording interval Rh of the image information of CF card.
To be expression stipulate to be recorded in the figure of situation of the recording interval of the acoustic information in the CF card according to the Hi/Lo signal S4 that has the car/empty wagons detecting device 44 of load-carrying by oneself to Figure 20.
Figure 21 is illustrated in that recording image information before and after moment of Hi signal of car/empty wagons detecting device of load-carrying have in output and at the figure of the situation of the moment of output Lo signal front and back recording image information.
Figure 22 is the various block diagrams that call of explanation trigger in drive recorder.
Figure 23 is expression according to the give a warning figure of situation of information of the threshold value of running data.
Figure 24 is the figure of expression G sensor output value and the relation of detection time.
Figure 25 is the chart of expression based on the trend of the size of G sensor output value and the relation between detection time thereof.
Figure 26 is the process flow diagram of expression based on the elemental motion of G sensor and external switch detection.
Figure 27 is the threshold value of expression G sensor output and the figure that judges time relation thereof.
Figure 28 is expression Hi/Lo signal and the sequential chart of judging time relation thereof.
Figure 29 A and Figure 29 B are the process flow diagrams of the processing of expression recording voice data, Figure 29 A is the process flow diagram of the processing of recording voice data before and after the car/complete vehicle curb condition variation that is illustrated in load-carrying, and Figure 29 B is that expression is recorded in the process flow diagram for the processing of the voice data during the car that load-carrying is arranged.
Figure 30 is 1st process flow diagram handled of expression by control device output synthetic video.
Figure 31 is 2nd process flow diagram handled of expression by control device output synthetic video.
Figure 32 is the block diagram that expression comprises the electrical structure of the drive recorder that connects serial port that other equipment use etc.
Figure 33 is the block diagram of the connection example that is connected with air bag ECU of expression.
Figure 34 A and Figure 34 B represent to change the processing of trigger monitoring period etc., and Figure 34 A is its process flow diagram, and Figure 34 B is the map of expression corresponding to the trigger cycle of various triggers.
Figure 35 is the process flow diagram that expression records image and sound during airbag actuation the processing of CF card.
Figure 36 is the block diagram of the connection example (1) that is connected with safety practice ECU of expression.
Figure 37 is a process flow diagram of representing only to monitor the processing of outside input switch.
Figure 38 is the block diagram of the connection example that is connected with multiple devices of expression.
Figure 39 is the block diagram that is connected example (2) of related, safety practice ECU of expression embodiments of the present invention and drive recorder.
To be expression record image etc. the process flow diagram of the processing of 1ROM according to locking signal etc. to Figure 40.
Figure 41 A and Figure 41 B represent sequential chart, Figure 41 A be expression ACC signal disconnect (PL1) back under through the T1 state that power control signal S2 disconnects after second, 1CPU is judged as the sequential chart of the situation of locking signal, Figure 41 B is that expression ACC signal disconnects after (PL1) sequential chart that is judged as the situation of locking signal through T1 before second, 1CPU13.
Figure 42 is the block diagram that is connected example (3) of related, safety practice ECU of expression embodiments of the present invention and drive recorder.
Figure 43 is the block diagram that is connected example (4) of related, safety practice ECU of expression embodiments of the present invention and drive recorder.
To be expression record image etc. the process flow diagram of the processing of 1ROM according to configuration switch etc. to Figure 44.
Embodiment
Below, the preferred implementation that present invention will be described in detail with reference to the accompanying.
Below, with reference to accompanying drawing, be used to implement mode of the present invention at a plurality of mode explanations.In the explanation of each mode, sometimes to mode formerly in the corresponding identical reference marker of part mark of item that illustrates, and the repetitive description thereof will be omitted.When description architecture only a part of, other parts of structure are identical with the mode of explanation formerly.Not only can be the combination of the part that in each embodiment, specifies, and, as long as obstacle does not take place in combination, also can partially combined each embodiment.
Fig. 1 is the stereographic map of the relation of expression drive recorder 1 of the 1st embodiment of the present invention and control device 2.Fig. 2 is the stereographic map of the alter mode behind partial alteration's drive recorder 1.Fig. 3 is used to illustrate to vehicle 3 figure of the camera station of camera is installed.Fig. 4 A and Fig. 4 B are the figure at expression center 4, and Fig. 4 A is the figure of expression central apparatus structure, and Fig. 4 B is the figure of expression to a kind of situation of driving trace, photographs and the G measurement value sensor of display 4a output vehicle 3.In the 1st embodiment, drive recorder 1 and the control device 2 (being called AVM-ECU2 sometimes) that carries the operational management on the vehicle 3 in advance ground connection that is electrically connected is provided with.For example, can use the digital radio frequency of 400MHz frequency band, from position, time and the multidate information of control device 2 to center 4 transmission vehicles 3, center 4 is carried out the vehicle scheduling indication according to these information to the particular vehicle in many vehicles 3.In addition, above-mentioned wireless frequency etc. is used at center 4, sends the image photography request via control device 2 to drive recorder 1.Wherein, the wireless frequency of Shi Yonging needn't be defined in the 400MHz frequency band.Sometimes also be suitable for the frequency band of for example distributing to mobile phone.The digital radio frequency not only can be suitable for, analog wireless frequency can also be suitable for.
As drive recorder 1 record of the related driving information recording apparatus of the 1st embodiment position, time and multidate information (these being called information etc.) from the vehicle 3 of control device 2, and, when predetermined condition is set up, with document image and acoustic information explicitly such as above-mentioned information.Central apparatus can be analyzed also output record in these information of the 1st drive recorder 1.
The 1st drive recorder 1 comprises drive recorder main body 5, camera 6, obtains the microphone 7 of the indoor acoustic information of car and the hummer 8 of the information that gives a warning.Camera 6 and microphone 7 are electrically connected and divide with drive recorder main body 5 and be arranged, and hummer 8 is arranged on the drive recorder main body 5 integratedly.1 camera 6 is set in this vehicle 3 at least.Camera 6 is by CCD camera (Charge Coupled Device: charge-coupled device (CCD)) realize.Vehicle front direction for the arrow D1 mark of Fig. 3 for shooting for example sticks on this camera 6 on the windshield 3a at the Room Mirror back side by not shown carriage.That is, this camera 6 towards vehicle front be fixed.In the 1st drive recorder 1, can be chosen in the 2nd or the 3rd camera 6 are set on this vehicle 3, particularly, the photography camera 6B of the indoor photography of car with camera 6A or rear view of vehicle can also be set.Sometimes also on drive recorder main body 5, be electrically connected and the photography switch 9 of these cameras 6 that separately are provided for photographing.
In addition, as shown in Figure 2, can also in vehicle, be useful in and add GPS (Global Positioning System: GPS) the drive recorder 1A of antenna 10 and not shown gps receiver etc. on the drive recorder main body 5.
Fig. 5 is the stereographic map of drive recorder 1.Fig. 6 is the front elevation of drive recorder 1.On drive recorder main body 5, can plug CF card 11 (CF:Compact Flash: standard flash memory) as recording medium.Even this CF card 11 is integrated in 1 structure on the card for the flash memory that the no power memory contents is not also disappeared with bearing with the outside control circuit that carries out input and output.In drive recorder main body 5, at 1RAM12 described later (RAM:Random Access Memory: the store car that circulates successively random access memory) periphery image, from the acoustic information of the indoor microphone of car and the driving information that comprises position, individual, time and the car/empty wagons information of load-carrying is arranged.When predetermined condition is set up, at least a portion of these information of record in above-mentioned CF card 11.Especially under the situation of the trigger of car/empty wagons that load-carrying arranged described later, only with the sound in a plurality of driving informations with there is the car/empty wagons information of load-carrying to record in the CF card 11.
Fig. 7 is the block diagram of the electrical structure at expression drive recorder 1, control device 2 and center 4.Fig. 8 is the block diagram of the electrical structure of expression drive recorder 1.Fig. 9 is the block diagram of the electrical structure of expression control device 2.Central processing unit), 1ROM14 (ROM:Read Only Memory: ROM (read-only memory)), the above-mentioned 1RAM12 as storage unit, CF card 15, JPEG IC16 (JPEG:Joint Photographic Coding Experts Group: JPEG (joint photographic experts group), IC:Integrated Circuit: integrated circuit), video switch 17 and light emitting diode 18 (being called for short LED:Light Emitting Diode, with reference to Fig. 5) drive recorder main body 5 comprises 1CPU13 as control module (CPU:Central Processing Unit:.Drive recorder main body 5 also comprises as usb host 19 (the USB:Universal Serial Bus: USB (universal serial bus)) with unit of usb host function, USB interface 20, with carry out the 1st of message exchange between the control device 2 and communicate by letter with driver 21, LCD manipulater connector 22 (LCD:Liquid CrystalDisplay: LCD), the 1st impact damper 23, the 1st circuit 24 that power supply starting signal from control device 2 is detected, the 1st monitoring IC25 with monitoring function, the 1st power supply unit 26, G sensor 27, the not shown counter that adds up to vehicle speed pulse.Can connect the LCD manipulater 28 that service mode described later is used on the LCD manipulater connector 22.G sensor 27 is to the acceleration of gravity of fore-and-aft direction that acts on vehicle 3 and left and right directions, is the sensor that the G sensor output value detects.If being sitting in steward's the frontal and the rear thereof of the driver's seat of this vehicle 3 is fore-and-aft direction, establishing the left direction and the right direction that are sitting in the steward in this vehicle 3 is left and right directions, and the direction of establishing with front and back and left and right directions quadrature is an above-below direction.Above-mentioned fore-and-aft direction is defined as Y direction, above-mentioned left and right directions is defined as X-direction.The G sensor output value of X-direction and the G sensor output value of Y direction are detected and record independently.
Above-mentioned 1RAM12 has 1SD-RAM (Synchronous DRAM: synchronous dram) 29 and 2SD-RAM30,1SD-RAM29 be used for placeholder record by camera to unprocessed image, the image that is write down is converted into the view data of jpeg format.2SD-RAM30 circulation writes down the view data that is converted into jpeg format touringly, from the G sensor output value of above-mentioned G sensor 27 and sound etc.On 1CPU13, be electrically connected 1ROM14,2SD-RAM30 and CF card 15 respectively.On 1CPU13, be electrically connected 1SD-RAM29 and video switch 17 via JPEG IC16.Above-mentioned video switch 17 is to be used for switching when being provided with a plurality of cameras 6,6A (6B) camera of taking with predetermined time interval 6, the change-over switch of 6A (6B).On 1CPU13, be electrically connected USB interface 20 via usb host 19, and, be electrically connected with communication respectively and monitor IC25 and G sensor 27 with driver 21, LCD manipulater connector the 22, the 1st impact damper the 23, the 1st.The 1st impact damper 23 is electrically connected with above-mentioned the 1st circuit 24.On the 1st monitoring IC25, be electrically connected the 1st power supply unit 26.In addition, 1CPU13 opens the 1st power supply unit 26 as primary power according to the power connection information from control device 2.In addition, not when control device 2 obtains power supply starting signal,, will switch to input with the input of driver 21 with switch from communicating by letter to the gps antenna side as situation about not being connected with control device 2.Thus, can detect position separately, to replace positional information from control device 2 from GPS.
Positional information, temporal information gps antenna 36 and GPS receive 35 and obtain, and steward's data can be from 39 inputs of LCD manipulater.There is the car/empty wagons information of load-carrying to obtain from the car that load-carrying is arranged/empty wagons detecting device 44 that the driver operates.There is the car/empty wagons detecting device 44 of load-carrying to be provided with the switch that moves according to driver's operation.The passenger into the car, in the moment of having confirmed to travel the destination, the on off state of switch by driver's operation to car one side that load-carrying is arranged.After arriving the destination, the on off state of switch, and is counted carefully to empty wagons one side by driver's operation.
These positional informations, temporal information, steward's data and have the car/empty wagons information of load-carrying temporarily to be stored among the 2RAM33.When 4 when sending information sending request, these information that are stored in 2RAM33 being sent to center 4 via digital radio set 45 via digital radio set 45 from the center.In addition, also can spontaneously send to center 4 by control device 2 termly.And then, 4 when sending the vehicle scheduling request, this message is conveyed to the driver from the center at control device 2 by loudspeaker SP via digital radio set 45.
Because control device 2 originally just has this basic function, therefore, control device 2 sends obtained positional information, temporal information, steward data and car/empty wagons information that load-carrying arranged by null modem cable SL to drive recorder 1 by driver 38.Drive recorder 1 receives these information by the 1st communication with driver 21, and stores 2SD-RAM30 into.
Figure 10 is the block diagram of the electrical structure of wanting portion of expression control device 2.Figure 11 is the block diagram of the electrical structure of wanting portion of expression drive recorder 1.Figure 12 is the figure that the delay circuit that resets by hardware when the monitoring pulse stops or being failure to actuate in the cycle of pre-fixing is described.As shown in figure 10, in control device 2, at logic and circuit 46, be on the input side 46a of OR circuit 46, connect the accessory power supply of vehicle 3, provide control signal from 2CPU31 to another input side 46b of above-mentioned OR circuit 46.From being connected the 2nd power supply unit 43 between above-mentioned OR circuit 46 and the 2CPU31, provide power throughing signal S1 to drive recorder 1 side.That is, as shown in figure 11, in drive recorder 1, on an input side 47a of OR circuit 47, connect accessory power supply, provide above-mentioned power throughing signal S1 to an input side 47b of above-mentioned OR circuit 47.
Figure 13 is the block diagram of expression about the electrical structure alter mode behind partial alteration's drive recorder 1, that want portion.In the present embodiment, in drive recorder 1, provide ACC signal and power throughing signal S1 to the input side of OR circuit 47, but needn't be defined in this mode.That is, as shown in figure 13, also can be following mode: in drive recorder 1, provide ACC circuit, power throughing signal and from the control signal S2 of 1CPU13 to the input side of OR circuit 47.Even in this alter mode, also be in the action of drive recorder 1, the monitoring pulse to take place, and when this monitoring pulse stops or being failure to actuate in the cycle of pre-fixing, reset by hardware by software.In alter mode, the 1st monitoring IC25 and 1CPU13 are equivalent to delay circuit.
Figure 14 is the figure of the relation of the part of presentation video information and positional information etc.Figure 15 be expression according to the G sensor output value at regular intervals δ information for still picture is recorded the figure of the situation in the CF card 11.1CPU13 converts camera 6 input pictures that photograph, that be imported into drive recorder main body 5 to the JPEG converted image by JPEG IC16, then, 1CPU13 successively with JPEG converted image cycle index to 2SD-RAM30.At this moment, for example write down 1 width of cloth rest image with the form of " image * .jpg ".Wherein, above-mentioned " * " is integer.Successively with G sensor output value, position, the time of this vehicle 3, the car/empty wagons of load-carrying is arranged and from the speed information of vehicle speed sensor 50, from the acoustic information of microphone 7, cycle index is to 2SD-RAM30, as the additional information of the rest image that is write down.
When having satisfied predefined record condition, the signal that 1CPU13 begins hummer 8 output records.Meanwhile, 1CPU13 will be recorded in JPEG converted image, G sensor output value, position, time among the 2SD-RAM30, the car/empty wagons of load-carrying is arranged and record in the CF card 11 from the speed information of vehicle speed sensor 50.In the present embodiment, for example write down 10 width of cloth rest images during 1 second, 1 incident (event) maximum can record CF card 11 with 300 width of cloth rest images during 30 seconds.So-called 1 incident and the a kind of state synonym that has satisfied predefined record condition.
The following describes record condition etc.Figure 16 is that expression surpasses the G sensor output value 48 of threshold value and the figure of the relation of the recording interval Rh of the image information that is recorded in CF card 11.As record condition, when G sensor output value 48 surpasses threshold value Gmax. or Gmin., surpassing constantly with threshold value is benchmark, will be in the recording interval during maximum 30 seconds JPEG converted image, its G sensor output value, position, time, car/empty wagons that load-carrying arranged and the speed information of cycle index in 2SD-RAM, from the audio information recording of microphone 7 to CF card 11.Sometimes also threshold value is surpassed and be called the trigger generation constantly constantly.T writing time before trigger takes place
BefAdd T writing time after trigger takes place second
AftTime after second, be equivalent to total ascent time of 1 recording interval in the incident.Can trigger take place preceding more than 5 seconds below 25 seconds, trigger take place back set maximum 30 seconds in the scope below 25 seconds more than 5 seconds during.
Figure 17 is the figure that is used to illustrate the threshold determination method of G sensor output value.Also describe with reference to Fig. 7, Fig. 8.1CPU13 obtains the output of G sensor, judges whether to have surpassed threshold value G
AbeAs previously mentioned, G sensor 27 is twin shaft types of X, Y direction.Can detect the fore-and-aft direction of vehicle 3 and the acceleration of gravity of left and right directions.Therefore, not only can detect the bump accident of fore-and-aft direction reliably, can also detect the bump accident of left and right directions reliably, and can analyze its reason.According to the vector of the acceleration of gravity of the acceleration of gravity of fore-and-aft direction and left and right directions with implement threshold determination.This threshold value can change to value arbitrarily by setting.
In the present embodiment, the situation of the level of can not fully the drive recorder main body 5 of built-in G sensor 27 being arranged to be considered, therefore, the processing of revisal be carried out the skew of the fore-and-aft direction of G sensor 27 and left and right directions is carried out.That is, as shown in Figure 5, when LCD manipulater 28 was connected to LCD manipulater connector 22, drive recorder main body 5 was transferred to the service mode that is used to set, check this drive recorder main body 5 from normal mode.In this service mode, carry out the skew of the fore-and-aft direction of G sensor 27 and left and right directions is carried out the processing of revisal.Can envision following situation: in this vehicle 3, when travelling on the bad track road, it is big that the vibration of above-below direction does not become with being hoped, and G sensor 27 all detects acceleration of gravity at fore-and-aft direction and left and right directions.Therefore, observe the up-down vibration when travelling on the bad track road, the G sensor output value be implemented the processing that alleviates wrong reaction.
Figure 18 is the connection signal S3 of expression photography switch 9 and the figure of the relation of the recording interval Rh of the image information that is recorded in CF card 11.As record condition, when the steward connects photography switch 9, thereby when switching its on off state, with the photography switch connection constantly TR1 (being called trigger takes place constantly) be benchmark, will be in the recording interval during maximum 30 seconds the JPEG converted image of cycle index in 2SD-RAM30, G sensor output value, position, time, car/empty wagons that load-carrying is arranged and the speed information in its photography switch connection moment, from the audio information recording of microphone 7 to CF card 11.T writing time before trigger takes place
BefAdd T writing time after trigger takes place second
AftTime after second, be equivalent to total ascent time of 1 recording interval in the incident.Wherein, also can set drive recorder main body 5, make JPEG converted image etc. to be recorded under the situation of CF card 11 being trigger, limit its switching manipulation number of times with photography switch 9, when reaching predetermined number of operations, even the switch 9 of operation photography does not later on record CF card 11 yet.
Figure 19 is the figure of expression by communications reception photography request instruction and the relation of the recording interval Rh of the image information that is recorded in CF card 11.Also describe with reference to Fig. 7.As record condition, when from the center 4 when control device 2 sends the image photography request based on wireless frequency, the 1CPU13 of drive recorder main body 5 carries out command reception to this signal.So, with receive instruction constantly TR2 (being called trigger takes place constantly) be benchmark, will be in the recording interval during maximum 30 seconds cycle index JPEG converted image, this receptions in 2SD-RAM30 instruct G sensor output value, position, time, car/empty wagons that load-carrying is arranged and the speed information in the moment, from the audio information recording of microphone 7 to CF card 11.T writing time before trigger takes place
BefAdd T writing time after trigger takes place second
AftTime (T after second
Bef+ T
AftSecond), the total ascent time that is equivalent to 1 recording interval in the incident.For example, the speed that is judged as this vehicle 3 of obtaining according to the vehicle speed pulse of one of running data when center 4 is implemented the image recording request from center 4 during greater than predefined fixing speed.In addition, be not limited only to vehicle speed pulse owing to caused parameter takes place above-mentioned trigger.For example, the running data of at least one in also writing down according to the fixed cycle sometimes, suddenly quicken, suddenly slow down and taking a sudden turn is implemented the image recording request from center 4.By using these a plurality of running datas, can in center 4, implement steward individual's detailed driving and instruct.
Figure 20 be expression according to the Hi/Lo signal S4 that have car/empty wagons detecting device 44 of load-carrying, stipulate to be recorded in the figure of situation of the recording interval of the acoustic information in the CF card 11.As the record condition of this acoustic information, when output when complete vehicle curb condition switches to the Hi signal of car state of load-carrying, the T before the moment TR3 that exports this Hi signal
BefSecond (T
BefFor example be tens of seconds second) beginning, record CF card 11 with being recorded in the voice data among the 2SD-RAM30, car/empty wagons that load-carrying is arranged and speed information.When in output under this recording status when the car state that load-carrying is arranged switches to the Lo signal of complete vehicle curb condition, up to from the moment TR4 that exports this Lo signal through T
AftSecond (T
AftSecond for example be tens of seconds) after the moment till, acoustic information etc. is recorded CF card 11.The signal of having the car/empty wagons detecting device 44 of load-carrying by oneself is detected by control device 2, and therefore, drive recorder 1 can detect car/complete vehicle curb condition that it has load-carrying by the serial communication with control device 2.In addition,, can call the detecting device on/off signal of the car/empty wagons detecting device 44 of load-carrying, be used as the external switch of drive recorder 1 not assisting under the moving situation with control device 2.
Figure 21 be illustrated in output have load-carrying car/empty wagons detecting device 44 the Hi signal the moment the front and back recording image information, at the figure of the situation of the front and back recording image information in the moment of exporting the Lo signal.As record condition, when output when complete vehicle curb condition switches to the Hi signal of car state of load-carrying, with the moment TR3 that exports this Hi signal (being called the 1st trigger takes place constantly) be benchmark, will be in the recording interval of maximum during 30 seconds the acoustic information in the information of cycle index in 2SD-RAM30, have the car/empty wagons information of load-carrying to record CF card 11.T writing time before the 1st trigger takes place
BefAdd T writing time after the 1st trigger takes place second
AftTime Rh (T after second
Bef+ T
AftSecond), the total ascent time that is equivalent to 1 recording interval in the incident.Can the 1st trigger take place preceding more than 5 seconds below 25 seconds, the 1st trigger take place back set maximum 30 seconds in the scope below 25 seconds more than 5 seconds during.
And then, as record condition, when output when the car state that load-carrying is arranged switches to the Lo signal of complete vehicle curb condition, with the moment TR4 that exports this Lo signal (being called the 2nd trigger takes place constantly) be benchmark, will be recorded in acoustic information in the information among the 2SD-RAM30 in the recording interval of maximum during 30 seconds, have the car/empty wagons information of load-carrying to record CF card 11.T writing time before the 2nd trigger takes place
BefAdd T writing time after the 2nd trigger takes place second
AftTime Rh (T after second
Bef+ T
AftSecond), the total ascent time that is equivalent to 1 recording interval in the incident.Can the 2nd trigger take place preceding more than 5 seconds below 25 seconds, the 2nd trigger take place back set maximum 30 seconds in the scope below 25 seconds more than 5 seconds during.
Figure 22 is the various block diagrams that call of explanation trigger in drive recorder 1.In the present embodiment, drive recorder 1 is not to utilize the direct inputs such as switch that are attached in this drive recorder 1 that the car/empty wagons information of load-carrying is arranged, but always obtains from the serial communication of controlling device 2, and it is carried out record as trigger.Therefore, trigger is input as G sensor 27, communication (center 4, the car/empty wagons of load-carrying is arranged), photography switch and external switch 49.
Information from control device 2 is regularly sent, and is in the state of regular supervision on time shaft.Wherein, be as the trigger that interrupts in communication.That is, from the trigger at center 4, the trigger of car/empty wagons of load-carrying is arranged for interrupting.The input of external switch 49 can be imported the connection cut-off signal of other switches, therefore, both can adopt the connection cut-off signal of the car/empty wagons switch of load-carrying to import as this external switch, the connection cut-off signal that also can adopt photography switch (driver's force switch) is as this external switch input.External switch input can detection triggers and state the two.For example, under for the situation of car/empty wagons that load-carrying is arranged, the variation of car/complete vehicle curb condition that can import load-carrying is as trigger, and calls car/complete vehicle curb condition that this has load-carrying, is used for record.
Figure 23 is expression according to the give a warning figure of situation of information of the threshold value of running data.When 1CPU13 according to the speed of this vehicle 3, fixed cycle record, suddenly quicken, anxious slow down and zig zag in any one running data at least, when detecting the abnormal driving of this vehicle 3, by hummer 8 to steward's notification alert information.After having notified this warning message, the duration of abnormal driving, gave a warning in for example per 30 seconds.But, indicating the process of vehicle schedulings from center 4 to this vehicle 3,1CPU13 forbids being given a warning by hummer 8.Whether specify in advance in CF card 11 is the determinating reference of abnormal driving.As shown in figure 23, upper limit E1 and lower limit E2, the abnormality juding time T e with the abnormality detection threshold value is defined as parameter.Continued predefined " abnormality juding time " when above in the situation that surpasses the upper limit, being judged as is abnormal driving.In the present embodiment, by hummer 8 notification alert information, but be not limited thereto.Also can on control device 2 or the 1st drive recorder 1, loudspeaker SP (with reference to Fig. 7) be set, carry out the synthetic output of the sound (for example output " speed that has surpassed regulation by this loudspeaker SP.Please slow down." wait sound to synthesize).
Below, illustrate according to anxious acceleration, the anxious deceleration and detect the situation of abnormal driving.The speed that for example per 0.1 second of 1CPU13 obtains this vehicle 3 by vehicle speed pulse is the speed of a motor vehicle, judges with the acceleration during 1 second.When this acceleration has surpassed decision content, 1CPU13 by hummer 8 to steward's notification alert information, and with this accelerogram to CF card 11.1CPU13 is judged to be " the anxious acceleration " when the acceleration that is appointment is above, be judged to be " anxious deceleration " when the retarded velocity that is appointment is above.Acceleration, retarded velocity as determinating reference can be set two kinds according to the car that load-carrying is arranged/empty wagons.
Below, the situation that detects abnormal driving by hypervelocity is described.For example per 0.1 second of 1CPU13 obtains the speed of a motor vehicle by vehicle speed pulse, when surpass that predetermined hypervelocity is judged speed and through the predetermined warning start time after, by hummer 8 to steward's notification alert information.After the speed of a motor vehicle surpasses predetermined hypervelocity judgement speed and process abnormality juding time T e, by hummer 8 notification alert information, and, this speed of a motor vehicle 3 is recorded CF card 11.Though when the speed of a motor vehicle below hypervelocity judgement speed, the common road or the road type of highway are removed hypervelocity when any one is varied to another.Judgement speed, warning start time can be set two kinds by above-mentioned road type.
Figure 24 is the figure of expression G sensor output value and the relation of detection time.Figure 25 is the chart of expression based on the trend of the size of G sensor output value and the relation of detection time thereof.1CPU13 there is no need sufficient idle capacity at the recording capacity of CF card 11, and when being recorded in G sensor output value in this CF card 11 less than new detected G sensor output value, the G sensor output value that deletion has been write down, this detected G sensor output value of enforcement of going forward side by side records the control in the CF card 11.As long as the idle capacity of the recording capacity of CF card 11 is fully necessary, even if then be recorded in G sensor output value in the CF card 11 less than new detected G sensor output value, do not delete the G sensor output value that has write down yet, and should record CF card 11 by detected G sensor output value.
When above-mentioned G sensor output value little (for example more than or equal to 0.4G less than 2G), its detection time short (for example tens of msec), mean that this vehicle 3 has passed through step or bad track road etc.During, its detection time long (for example 100msec more than) little, mean that this vehicle 3 has carried out emergency brake when the G sensor output value.And, when the G sensor output value (for example more than the 2G), its detection time means that accident has taken place this vehicle 3 greatly in short-term.The present patent application people waits the trend data that obtains this size and the relation of detection time thereof based on the G sensor output value by experiment, and stores in the storer etc. of central apparatus.
Figure 26 is the process flow diagram of the elemental motion of expression G sensor and external switch detection.Figure 27 is the threshold value of expression G sensor output and the figure that judges time relation thereof.Figure 28 is expression Hi/Lo signal and the sequential chart of judging time relation thereof.The ACC signal that provides by accessory power supply connect or the condition of the power connection of control device 2 under, begin this flow process.Among the step a1,1CPU13 has judged whether to pass through the regular perception timing t 1 (t1 for example is 10msec) (with reference to Figure 27) of G sensor 27 after beginning.When being judged as "No", transfer to step a2.Transfer to step a3 when having passed through t1 being judged as, 1CPU13 records 2SD-RAM30 with the G sensor output value, judges that at step a4 whether this G sensor output value is greater than threshold value.When being judged as "No", transfer to step a2.
Transfer to step a5 when being judged as the G sensor output value greater than threshold value, 1CPU13 judges whether to have passed through pre-set threshold and judges time T g.Threshold determination time T g is set longlyer than perception timing t 1.The moment that surpasses threshold value from the G sensor output value begins threshold determination time T g is carried out timing, when reach time T g the continuous time that has surpassed threshold value, is judged as and has passed through threshold determination time T g.When being judged as, transfer to step a2 as yet not through threshold determination time T g.Transfer to step a6 when having passed through threshold determination time T g when being judged as.At this, 1CPU13 detects the situation that this vehicle 3 carries out dangerous driving.Then transfer to step a7,1CPU13 will be recorded in the image information recording of 2SD-RAM30 to CF card 11.Return step a1 then.By such threshold determination time T g is set, can prevent the malfunction of noise etc.
In step a2,1CPU13 has judged whether to pass through the regular perception timing t 2 (t2 for example is 100msec) (with reference to Figure 28) of external switch 49.When being judged as "No", turn back to step a1.Transfer to step a8 when having passed through t2 being judged as, 1CPU13 judges that whether external switch 49 has been connected, and turns back to step a1 when being judged as "No".Transfer to step a9 when connecting being judged as, 1CPU13 judges whether to have passed through predefined signal determining time T sw.This signal determining time T sw is set longlyer than perception timing t 2.The moment that switches to connection from disconnection begins signal determining time T sw is carried out timing, when reach time T sw the continuous time that becomes connection, is judged as and has passed through signal determining time T sw.When being judged as, turn back to step a1 as yet not through signal determining time T sw.Transfer to step a10 when being judged as when having passed through signal determining time T sw, 1CPU13 transfers to step a7 after detecting external switch 49.By above-mentioned signal determining time T sw is set, can prevent the malfunction of noise etc.
Figure 29 A and Figure 29 B are the process flow diagrams of the processing of expression recording voice data, Figure 29 A is the process flow diagram of the processing of recording voice data before and after the car that is illustrated in load-carrying/complete vehicle curb condition changes, and Figure 29 B is the process flow diagram that expression is recorded in the processing of the voice data during the car of load-carrying.The ACC signal that provides by accessory power supply connect or the condition of the power connection of control device 2 under, begin this flow process.Shown in Figure 29 A, after beginning among the step b1,1CPU13, with voice data (with the acoustic information synonym) cycle index to 2SD-RAM30.Then transfer to step b2,1CPU13 has the connection of the car/empty wagons switch of load-carrying to disconnect according to the input from control device 2.That is,, therefore, detect from the variation of empty wagons to the car that load-carrying is arranged in drive recorder 1 side owing to only send the car/complete vehicle curb condition of load-carrying from control device 2.
Because by drive recorder 1 monitored state, therefore, when when certain regularly detects empty wagons, then it is stored in advance, when when its ensuing timing detects the car of load-carrying, by " empty wagons " information and this detected " car that load-carrying is arranged " information of storage more in advance, can detect and have the car/complete vehicle curb condition of load-carrying to be varied to " from empty wagons to the car that load-carrying is arranged " this situation by drive recorder 1.Like this, drive recorder 1 can detect the connection disconnection of the car/empty wagons switch of load-carrying indirectly.
When in step b2, being judged as "No", return step b1.Transfer to step b3 when changing when being judged as, 1CPU13 has judged whether to pass through the empty wagons time (T before the moment that comprises the car that is judged as load-carrying
BefSecond) and time (T behind the car of load-carrying is arranged
AftSecond) elapsed time, that is, arranged the x second of opening the light before and after the state variation (x second for example be 30 seconds) of the car/empty wagons switch 44 of load-carrying.When being judged as "No", return step b1.Be judged as through out-of-date, 1CPU13 will be before and after above-mentioned variation during x second (i.e. the time Rh of mark in Figure 21) be stored in voice data record among the 2SD-RAM30 to CF card 11.Turn back to step b1 then.
Sometimes also carry out and to be the processing of the voice data record during the car that load-carrying is arranged in the CF card 11.Shown in Figure 29 B, under beginning condition same as described above, transfer to step c1, with the voice data cycle index to 2SD-RAM30.Then, in step c2,1CPU13 is according to the signal from control device 2, and the connection that detects car/empty wagons switch that load-carrying is arranged disconnects.That is, owing to only send the car/complete vehicle curb condition of load-carrying from control device 2, therefore, b2 is identical with above-mentioned steps, detects from the variation of empty wagons to the car that load-carrying is arranged in drive recorder 1 side.
When in step c2, being judged as "No", return step c1.When empty wagons is changed to the car of load-carrying, transfer to step c3 at the car/complete vehicle curb condition that is judged as load-carrying.At this, x1 (is T second 1CPU13 switches to moment of signal of car state of load-carrying from output from complete vehicle curb condition before among Figure 20
BefSecond) beginning, with the voice data record of cycle index in 2SD-RAM30 to CF card 11.Then, in step c4, the voice data that 1CPU13 will be judged as behind the car of load-carrying continues additional record to CF card 11.Then, in step c5,1CPU13 judges has the car/complete vehicle curb condition of load-carrying whether to be varied to empty wagons from the car that load-carrying is arranged.When being judged as "No", return step c4.When the car that in step c5, is judged as load-carrying, transfer to step c6 when empty wagons has changed, 1CPU13 will be judged as voice data additional record behind the empty wagons to CF card 11.Then, transfer to step c7,1CPU13 has judged whether to pass through output and (has been T among Figure 20 from the x2 second afterwards in the moment that the car state that load-carrying is arranged switches to the signal of complete vehicle curb condition
AftSecond).When being judged as "No", return step c6.Passed through x2 and returned step c1 during second being judged as.
Figure 30 is 1st process flow diagram handled of expression by AVM-ECU output synthetic video.The ACC signal that provides by accessory power supply connect or the condition of the power connection of control device 2 under, begin this flow process.After the beginning, in steps d 1, when 1CPU13 detects the dangerous driving of this vehicle 3, transfer to steps d 2, the 1CPU13 and warn the voice output request to the 2CPU31 of control device 2.
In control device 2 sides, when 2CPU31 in step e 1 received warning voice output request, in step e out, 2CPU31 made loudspeaker SP (with reference to Fig. 7) output sound synthetic (for example " above the speed of stipulating.Please slow down." wait sound to synthesize).When this vehicle 3 from the center 4 when receiving the vehicle schedulings indication (step e 2: be), 2CPU31 does not make loudspeaker SP output sound just finish this processing.If not receiving the vehicle scheduling indication, then in step e out, make loudspeaker SP output sound synthetic.
Figure 31 is 2nd process flow diagram handled of expression by AVM-ECU output synthetic video.In control device 2 sides, when 2CPU31 in step e 1 receives warning voice output request, transfer to step e m, 2CPU31 is according to there being the car/empty wagons detecting device 44 of load-carrying to judge whether current be the car that load-carrying is arranged.Transfer to step e out when being judged as "No", 2CPU31 makes loudspeaker SP output sound synthetic.When being judged as current in step e m is that 2CPU31 did not make loudspeaker SP output sound just finish this processing when the car of load-carrying was arranged.
According to the drive recorder 1 of the present embodiment of above explanation, a plurality of driving informations of cycle index in 2SD-RAM30 (image, G value, position, time, car/empty wagons that load-carrying is arranged, the speed of a motor vehicle, sound etc.).Under the situation of the trigger (G sensor etc.) beyond car/empty wagons that load-carrying is arranged, with image, G value, position, time, car/empty wagons that load-carrying is arranged, the speed of a motor vehicle, SoundRec in card.Under the situation of the trigger of car/empty wagons that load-carrying is arranged, sound that only will be wherein, there is the car/empty wagons of load-carrying to record CF card 11.That is, in the car/empty wagons of load-carrying is arranged, for the attitude of observerpilot to the passenger, necessary driving information so long as from the driver's of microphone in the car sound, have the car/empty wagons information of load-carrying just much of that, do not need image, the speed of a motor vehicle etc.This is because the driver in the time of just can understanding car that load-carrying is arranged/empty wagons variation by driver's sound is to passenger's attitude.Therefore, can greatly guarantee the idle capacity of CF card 11.Like this,, also can call the driving information of the car/empty wagons that is suitable for having load-carrying most, avoid wasted recording space even when CF card 11 calls a plurality of trigger.
But in car, when being the driver, image also is recorded in the CF card 11 at camera.That is, when calling a plurality of driving information of a plurality of recording trigger, can write down suitable driving information corresponding to this trigger content.When the car of load-carrying/empty wagons is arranged, in the time of needn't using the car of load-carrying and during empty wagons the two, any one in the time of also can using the car of load-carrying or during empty wagons.When from empty wagons, being changed to the car of load-carrying, the attitude of the driver in the time of also can only recording the car of load-carrying.When being changed to empty wagons when the car of load-carrying is arranged, also can only write down driver's attitude.Under these circumstances, the idle capacity of CF card 11 can be further guaranteed, wasted recording space can be avoided.Since can reliable recording about with passenger loading get off corresponding, to the information of passenger's attitude, therefore, can effectively carry out driver's driving and instruct.
According to drive recorder 1, the indoor sound of registration of vehicle 3 during the car of load-carrying is arranged, but before the car that load-carrying will be arranged the voice data record of x1 second behind CF card 11, also with behind the empty wagons through the voice data record of x2 second to CF card 11, therefore, can be achieved as follows effect.Can drive guidance to the steward to the travel keeper of management of taxi, make become the car that load-carrying is arranged from car/empty wagons detecting device 44 that load-carrying is arranged before, the passenger is implemented passenger's desired services with self-disciplined attitude.The keeper can drive guidance to the steward, makes also to implement same service after the car of load-carrying/empty wagons detecting device 44 becomes empty wagons having.
Figure 32 is the block diagram that expression comprises the electrical structure of the drive recorder 1 that connects serial port 51 grades that other equipment use.In drive recorder 1, with G sensor 27, from the instruction at center 4 or from the car that the load-carrying is arranged/empty wagons information of control device 2, photography switch 49 as trigger.Wherein, realize in order to make other triggers also can be used as the trigger that is recorded in CF card 11, drive recorder 1 is provided with serial (communication) port 51 and disconnects port 52 as the connection of input block, is used as idle port, so that can be connected with other equipment.External switch not only can connect with other switches, just can connect so long as the ECU of cut-off signal is connected in output.
By G sensor 27 detection accidents the time, need not detect earlier behindhand, therefore, monitor that the cycle of trigger for example is set to 10msec.Control device 2, other serial ports 51 interrupt, and the priority ratio G sensor 27 of photography switch 49 and external switch input port 52 is low, monitor that the cycle of these triggers for example is set (being called common setting) is 100msec.For example as external switch input, when having imported car that load-carrying is arranged/empty wagons switch, monitor that the cycle of trigger for example is set to 100msec.
Figure 33 is the block diagram of the connection example that is connected with air bag ECU53 of expression.,, export and be used for the connection signal of lighting a fire during impact more than certain according to G value as the air bag ECU53 of vehicle-state detecting unit as the lighter 54 of portfire from the G sensor.In this driving register 1, constitute this connection signal is called as external switch input.Under the situation that is air bag ECU53, need detection triggers as soon as possible in order to detect bump, therefore, under the situation that is connected with air bag ECU53, the trigger monitoring period is changed to 10msec from 100msec.When this trigger monitoring period of change, use CF card 11 to carry out version updating.That is, in CF card 11, write down the content of pairing portal number, trigger cycle and trigger in advance, and it is installed, changes by drive recorder 1.
Figure 34 A and Figure 34 B represent to change the processing of trigger monitoring period etc., and Figure 34 A is its process flow diagram, and Figure 34 B is the map of expression corresponding to the trigger cycle of various triggers.Under the condition that the ACC signal that is provided by accessory power supply is connected, begin this flow process.Transfer to step f1 after the beginning, 1CPU13 has judged whether to append new trigger.When being judged as "No", finish this processing.Transfer to step f2 when appending being judged as, the content (starting air bag etc.) that 1CPU13 will be recorded in above-mentioned portal number, trigger cycle (changing to 10msec from 100msec) and trigger in the CF card 11 writes 1ROM (flash rom) 14.Finish this processing then.But also can shown in Figure 34 B, will be kept at as map corresponding to the trigger cycle of various triggers among the 1ROM14 of drive recorder 1, to replace the flow process of Figure 34 A.
Figure 35 is the process flow diagram that expression records image and sound during airbag actuation the processing in the CF card 11.Under the condition that the ACC signal that is provided by accessory power supply is connected, begin this flow process.After the beginning, in step g 1,1CPU13 reads in the program of 1ROM14, then transfers to step g 2.In fact 1CPU13 moves according to this program.At this, 1CPU13 judges whether the trigger monitoring period is every 10msec, promptly whether has become supervision regularly.When being judged as "No", return step g 2.When being judged as every 10msec, transfer to step g 3, the 1CPU13 and judge whether to start air bag.When being judged as "No", return step g 2.Transfer to step g 4, the 1CPU13 when starting image and sound are recorded CF card 11 being judged as.Return step g 2 then.Though do not illustrate, G sensor 27 waits other triggers also to monitor according to predefined trigger monitoring period.
Figure 36 is the block diagram of the connection example (1) that is connected with safety practice ECU55 of expression.Under the situation that is safety practice, under the condition of door locked and disconnection IG (igniting), transfer to monitoring mode.Whether be in the lock state by door locked/detector switch 60 decision gates of unblanking.When under monitoring mode, detecting in glass fragmentation or the intrusion car, as the safety practice ECU55 output connection signal of vehicle-state detecting unit, so that hummer 56 pipes by sensor 58,59.If the related drive recorder 1 of present embodiment calls above-mentioned connection signal as the outside input, then when safety practice is moved, image (image that car is inside and outside) and sound are recorded CF card 11.In safety practice, when disconnecting IG, transfer to monitoring mode, therefore, in drive recorder 1,, also export enabling signal to drive recorder 1 from safety practice ECU55 even disconnect IG, start drive recorder 1.
Under the situation that is safety practice, the monitoring period of trigger is 100msec, and the port that monitors when disconnecting IG only is outside input switch, needn't watch other ports of G sensor 27 and control device 2 etc.This is because vehicle stops already, needn't monitor.Therefore, can alleviate the processing load of 1CPU13, realize the reduction of power consumption.The method of new connection safety practice ECU55 is identical with the situation of air bag ECU53, so omit.
Figure 37 is a process flow diagram of representing only to monitor the processing of outside input switch.Starting under the condition (ACC connection) of drive recorder 1 to drive recorder 1 output enabling signal from safety practice ECU55 in advance, begin this processing.Transfer to step h1 after the beginning, 1CPU13 reads in the content of 1ROM14 etc., then transfers to step h2.At this, 1CPU13 judges whether IG connects.Thereby be judged as "No", when promptly disconnecting the IG vehicle drive and stop, transferring to step h3, transferring to step h4 when IG connects being judged as.In step h4, when having common trigger input, the processing of 1CPU13 executive logging in CF card 11.
In step h3,1CPU13 judges that whether the trigger cycle is every 100msec, promptly whether is to monitor regularly.When being judged as "No", return step h2.Transfer to step h5 when being judged as every 100msec, 1CPU13 judges whether to exist safety practice to start (whether warning information is arranged).When being judged as "No", return step h2.Transfer to step h6 when existing safety practice to start being judged as, 1CPU13 records CF card 11 with image and sound.Return step h2 then.Therefore, when disconnecting IG, do not enter step h4, ignore the supervision of other triggers.
Figure 38 is the block diagram of the connection example that is connected with multiple devices of expression.If be suitable for the communication port 51 of drive recorder 1, then not only can carry out the trigger input, can also carry out the input and output of information.For example, when the trigger that has from air bag, call from the shock extent of air bag ECU53 with from the transport information (congestion information etc.) of audio frequency/navigational system 57, drive recorder 1 records CF card 11 with them, thereby can carry out crash analysis in more detail.
According to the drive recorder 1 of above explanation, control, make that 1CPU13 arrives CF card 11 with the signal of being imported as recording trigger when connecting when disconnecting port 52 inputs from the signal of air bag ECU53 or safety practice ECU55 etc.Especially, can import signal owing to connect to disconnect port 52 from other vehicle-state detecting units different with vehicle 3 being in detecting unit that predetermined state detects, therefore, needn't start anew to make again drive recorder, can realize thereupon that cost reduces.Therefore, even can provide a kind of request to append the high drive recorder of versatility that trigger also can simply append.
Because can will monitor the timing of the signal whether the expression deployment balloon is arranged, set to such an extent that regularly want Zao than predefined supervision, therefore, can suitably change the monitoring period of trigger according to the content of trigger.Owing to monitor whether the signal that carries out alarm when vehicle drive stops to be arranged, and ignore unwanted other triggers when vehicle drive stops, therefore, can limit the content that monitors trigger according to vehicle-state.Therefore, can reduce the processing load of 1CPU13.
Figure 39 is the block diagram that is connected example (2) of related, safety practice ECU55 of expression embodiments of the present invention and drive recorder 1.The related explanation of present embodiment comprises the explanation of driving information recording method.Also describe with reference to Fig. 8.The gate controlled switch 66 of the open and-shut mode of safety practice ECU55 and the glass break sensors 58 that detects vehicle glass fragmentation etc., the intrusion sensor 59 by electric wave or ultrasound examination intrusion vehicle, detecting gate, vehicle battery (being labeled as BATT in the drawings), ignition switch (being labeled as IG SW in the drawings) etc. are electrically connected.Safety practice ECU55 controls, and receives the locking or the request signal of unblanking from transmitter RS, at lock-out state with unblank to switch vehicle doorn between (non-locking) state.Safety practice ECU55 to make the signal that hummer 56 pipes and is electrically connected with this hummer 56 in order to export, and also is electrically connected with the drive source 61 that drives (i.e. locking) door locked mechanism.On drive recorder 1, set in advance port 62 that the so-called locking signal from safety practice ECU55 to above-mentioned drive source 61 is called as outside input etc.
Safety practice ECU55 is receiving ID code (Identification code: identification code) and during the locking request signal from transmitter RS, be stored in ID code among the safety practice ECU55 itself and received ID code more in advance, when both are consistent, to drive source 61 output locking signals, opposite house locks, and transfers to the theft monitoring mode.In the theft monitoring mode, judge whether to have taken place theft by glass break sensors 58, intrusion sensor 59 and gate controlled switch 66.When detecting the generation theft, transfer to warning mode, safety practice ECU55 exports alarm signal for hummer 56 is piped.
To be expression record image etc. the process flow diagram of the processing of 1ROM14 according to locking signal etc. to Figure 40.When connecting the power supply of drive recorder main body 5, begin this processing according to ACC etc. or locking signal etc.Begin to transfer to step I 1, the 1CPU13 out-put supply control signal S2 (with reference to Figure 13) after this processing.Whether then to transfer to step I 2, to drive in order distinguishing, 1CPU13 judges whether IG connects.
At this, transfer to step I 3 when promptly driving when being judged as the IG connection.Transfer to step I 4a when not driving when being judged as.In this step I 4a, whether 1CPU13 is common control shown in Figure 12 in order to distinguish, and judges whether locking signal to be called as the outside input.When being judged as "No", transfer to step I 7, for even the ACC signal disconnects drive recorder 1 also can record data, 1CPU13 controls, make after the ACC signal disconnects (Figure 41 A and Figure 41 B, PL1), just disconnect power control signal S2 (promptly carrying out common control shown in Figure 12) after second through T1.Return step I 2 then.
In step I 4a, 1CPU13 is when calling locking signal from safety practice ECU55 to above-mentioned drive source 61 and import as the outside, be judged as the safety practice setting, then transfer to step I 8, in order to have judged whether that regularly safety practice starts, is alarm signal output that 1CPU13 for example judges whether to be every " 100msec ".Wherein, be not limited to every 100msec.When being judged as "No", return step I 2.
Transfer to step I 9 when being every 100msec being judged as, as the trigger of document image, sound etc., 1CPU13 has judged whether alarm signal.There is not alarm signal output the time to return step I 2 being judged as.Be judged as alarm signal output, transferring to step I 10 when promptly theft taking place.In this step, 1CPU13 carries out the processing to 1ROM14 such as the driving information recording such as for example image, sound etc. will be stored among the 2SD-RAM30.Return step I 2 then.By not being to record CF card 11 but record among the 1ROM14 driving information, can prevent that recording medium from being taken away by the burglar when theft takes place.
When in step I 2, be judged as IG connect, when promptly driving, 1CPU13 carries out the common recording processing in the vehicle drive.That is, when trigger is imported, execution will be stored in the processing of driving information recordings such as for example image in the CF card 11 among the 2SD-RAM30.Then transfer to the output indication that step I 5, the 1CPU13 judge whether to be recorded in the driving information among the 1ROM14.When being judged as not output indication, return step I 2.Move on to step I 6 being judged as when indication output, in step I 10, carry out the driving information that will be recorded among the 1ROM14, be that the record of safety practice records the processing in the CF card 11.
Figure 41 A and Figure 41 B represent sequential chart, Figure 41 A be illustrated in the ACC signal disconnect after (PL1) through under the T1 state that power control signal S2 just disconnects after second, 1CPU13 is judged as the sequential chart of the situation of locking signal, Figure 41 B is that expression ACC signal disconnects after (PL1) sequential chart that is judged as the situation of locking signal through T1 before second, 1CPU13.
Shown in Figure 41 A and Figure 41 B, 1CPU13 disconnects (PL1) with the ACC signal and carries out timing constantly as starting at.In the moment that the ACC signal disconnects, power control signal S2 keeps on-state.Shown in Figure 41 B, 1CPU13 had locking signal (being the safety practice setting) as if being judged as after the ACC signal disconnects (PL1) through T1 before second, then keep the on-state of power control signal S2.Shown in Figure 41 A, 1CPU13 after second, makes power control signal S2 become disconnection from on-state through T1 after the ACC signal disconnects (PL1).Then, 1CPU13 is having locking signal promptly to carry out safety practice when being provided with, and power control signal S2 is connected.
Be connected example (2) according to the safety practice ECU55 of above explanation and drive recorder, can start drive recorder 1 according to the locking signal that safety practice ECU is exported, in other words, can not use special signal, and use expression to become the signal of original theft monitored state, start drive recorder 1.Shown in the step I 4a of Figure 40,1CPU13 imports as the outside to the locking signal of drive source 61 as if calling from safety practice ECU55, then is judged as and has carried out safety practice setting (step I 4a: be).Therefore, compare with using above-mentioned special signal, the wiring that (not transforming safety practice ECU55 etc. fully) can simplify drive recorder 1 connects, can realize the part number of packages reduction and man-hour number reduction.
Every small time (for example every 100msec) has judged whether alarm signal output after having carried out safety practice setting (step I 4a: be), therefore, can improve security.To in the step I 10 of Figure 40, record the record of safety practice of the 1ROM14 of drive recorder inside, in step I 6, record CF card 11, and therefore, can provide CF card 11 easily and reliably to central apparatus or various office.
Can also by after becoming disconnection at the ACC signal from connection for example certain hour (T2 second=15 second) pin operation such as photography switch 9 (for example more than 4 seconds below 15 seconds) for a long time with interior, the driving information that is recorded in 1ROM14 is duplicated or moves to CF card 11.Then just can be easily and the driving information of analytic record in CF card 11 in center etc. promptly.That is, drive recorder 1 not being taken off from vehicle just can be easily and promptly analyze driving information, can improve convenience.
Also can constitute, secondary cell BATT2 (with reference to Figure 39) that will be different with the accumulator in being arranged on vehicle is arranged on drive recorder inside, when IG disconnection and safety practice startup, continues the starting state of drive recorder 1 by this secondary cell BATT2.In addition, also can be, 1CPU13 controls, and is being judged as above-mentioned accumulator when having become predefined magnitude of voltage (for example below the 10V), and the power supply of drive recorder 1 is switched to secondary cell BATT2 from the subsidiary accumulator of vehicle.According to such structure, can improve the reliability of the starting state that continues drive recorder 1.
Figure 42 is the block diagram that is connected example (3) of related, safety practice ECU 55 of expression embodiments of the present invention and drive recorder 1.In above-mentioned connection example (2) shown in Figure 39, drive recorder calls from the locking signal of safety practice ECU55 output and imports as the outside, and in the related connection example (3) of present embodiment, drive recorder 1 is invoked at during the theft monitoring mode supervisory signal that outputs to the light emitting diode 63 (being called for short LED:LightEmitting Diode) that for example is arranged on the instrument panel etc. from safety practice ECU55 and imports as the outside.
On the related drive recorder 1 of present embodiment, set in advance and call the port 64 of above-mentioned supervisory signal as the outside input.Drive recorder 1 for example constitutes according to above-mentioned supervisory signal and starts, and the 1CPU13 of this drive recorder 1 monitors whether alarm signal is arranged under the state that starts drive recorder 1 by above-mentioned supervisory signal.In the related connection example (3) of present embodiment, compare with using above-mentioned special signal, the wiring that can simplify drive recorder 1 connects, can realize the part number of packages reduction and man-hour number reduction.
In above-mentioned connection example (2) shown in Figure 39, in the step I 4a of Figure 40,1CPU13 judges whether to have called locking signal and imports as the outside.Relative therewith, in connection example (3) shown in Figure 42, in the step of Figure 40 i4a, 1CPU13 judges whether to have called above-mentioned supervisory signal and imports as the outside.When being judged as "No", transfer to step I 7.When calling above-mentioned supervisory signal, then transfer to step I 8.In the process flow diagram of this connection example (3), except that step I 4a, be the beginning condition identical, and be identical step with the process flow diagram of Figure 40.
1CPU13 also can judge whether to have called in above-mentioned supervisory signal and the locking signal any one is imported as the outside at least.Under these circumstances, even under situation to the wiring of LED63 broken string, also can with is connected routine (2) and similarly judges whether to have called locking signal by 1CPU13 and import as the outside at step I 4a.Therefore, compare as the mode of outside input, can further improve security with only calling supervisory signal.
Figure 43 is the block diagram that is connected example (4) of related, safety practice ECU 55 of expression embodiments of the present invention and drive recorder.On the drive recorder 1 of the related connection example (4) of present embodiment, be provided with whether being electrically connected the configuration switch 65 that safety practice ECU55 sets.
Figure 44 is the process flow diagram that expression records image etc. according to configuration switch 65 grades the processing of 1ROM14.The beginning condition of this processing is, according to the power supply of connection drive recorders 5 such as ACC signal.In this flow process,, omit explanation to it for the identical step numbers of step mark identical with the flow process that in Figure 40, illustrates.Be not to transfer to step I 4b when driving when being judged as in step I 2,1CPU13 judges whether to be electrically connected safety practice ECU55 according to configuration switch 65.
Particularly, when 1CPU13 is judged as (step I 4b: not) when not being electrically connected with safety practice ECU55 as yet in step I 4b, transfer to step I 7,1CPU13 controls, make to disconnect the back in that power control signal is disconnected, promptly carry out common control shown in Figure 12 at the ACC signal.When 1CPU13 is judged as (step I 4b: be) when being electrically connected with safety practice ECU55 in step I 4b, transfer to step I 8.
According to the connection example (4) of above explanation, can realize to select free and simply the system that whether is electrically connected with safety practice ECU55.So just can realize the drive recorder that versatility is high.Above-mentioned configuration switch 65 for example can also be also used as photography switch 9 etc.For example under service mode, also photography switch 9 can be switched to configuration switch.Under these circumstances, can realize the reduction of the part number of packages of drive recorder, and the number of can reducing work hours.In drive recorder 1, also can be according to the setting program that is recorded in the CF card 11, setting is kept or is cancelled and being electrically connected of safety practice ECU55.Can use central apparatus that above-mentioned setting program is recorded in the CF card 11.Above-mentioned setting program can also be recorded among for example 1ROM14 of drive recorder main body 5 in advance.By such structure, also can realize to select free and simply the system that whether is electrically connected with safety practice ECU55.
Only otherwise break away from its spirit or principal character, the present invention can realize with other variety of ways.Therefore, above-mentioned embodiment only is the simple illustration on all technical essentials, and the scope of protection of present invention is not limited to the instructions text fully shown in claims.And, belong to interior distortion of claims scope or variation also all within the scope of the present invention.
Claims (11)
1, a kind of driving information recording apparatus has: will store the unit of storage unit about the driving information of vehicle drive into touringly; And the signal of the detecting unit that detects from the situation that vehicle has been in predetermined state of input, with this signal as trigger, will be stored in the unit of driving information recording in the recording medium that can plug in this storage unit, it is characterized in that, comprising:
Input block can be imported the signal from other the vehicle-state detecting units different with above-mentioned detecting unit; And
Control module, according to imported by above-mentioned input block, from the kind of the signal of vehicle-state detecting unit, to in aforementioned recording medium, write down the condition enactment of driving information in aforementioned recording medium, will be from the signal of above-mentioned input block input as trigger, read from aforementioned recording medium based on correspondence, from the condition of the kind of the signal of vehicle-state detecting unit, with driving information recording in aforementioned recording medium.
2, driving information recording apparatus as claimed in claim 1 is characterized in that,
The air bag controlled unit of deployment balloon when above-mentioned input block can be from Vehicular impact, the input expression makes the signal of airbag deployment.
3, driving information recording apparatus as claimed in claim 2 is characterized in that,
In above-mentioned control module, can monitor the timing that whether has expression to make the signal of airbag deployment, set the timing that monitors that than predefined timing is Zao for.
4, driving information recording apparatus as claimed in claim 1 is characterized in that,
The safety practice control module that above-mentioned input block can carry out alarm when detecting vehicle theft, the signal that input is carried out alarm.
5, driving information recording apparatus as claimed in claim 4 is characterized in that,
Whether above-mentioned control module monitors to have in vehicle drive and detects the signal that vehicle is in the detecting unit of specified states; When stopping, vehicle drive only monitors the signal that alarm is carried out.
6, driving information recording apparatus as claimed in claim 4 is characterized in that,
According to signal above-mentioned safety practice control module output, that represent to have become the theft monitored state, start this driving information recording apparatus,
Above-mentioned control module is controlled, by above-mentioned signal enabling under the state of driving information recording apparatus, whether monitor has alarm signal, and with this alarm signal as trigger, be recorded in the driving information of storing in the said memory cells.
7, driving information recording apparatus as claimed in claim 4 is characterized in that,
In the predefined time after the auxiliary signal of this vehicle disconnects, imported to driving information recording apparatus under the situation of the signal that above-mentioned safety practice control module is exported, that expression has become the theft monitored state,
Above-mentioned control module is controlled, and continues the starting state of this driving information recording apparatus, monitors whether alarm signal is arranged under above-mentioned starting state, and this alarm signal as trigger, is recorded in the driving information of storing in the said memory cells.
8, driving information recording apparatus as claimed in claim 4 is characterized in that,
Above-mentioned control module and safety practice control module can be set to status of electrically connecting or notconnect state, and above-mentioned control module has the function that judges whether to above-mentioned connection status,
Above-mentioned control module is controlled, when being connection status with the safety practice control module, after the auxiliary signal of this vehicle disconnects, continue the starting state of this driving information recording apparatus, whether supervision has alarm signal under above-mentioned starting state, this alarm signal as trigger, is recorded in the driving information of storing in the said memory cells.
9, driving information recording apparatus as claimed in claim 6 is characterized in that,
Also have storage medium in driving information recording apparatus inside,
Above-mentioned control module is controlled, and alarm signal as trigger, is not to record in the aforementioned recording medium with the driving information that is stored in the said memory cells, but records in the storage medium of driving information recording apparatus inside.
10, driving information recording apparatus as claimed in claim 9 is characterized in that,
Above-mentioned control module is controlled, and by preset operation, will be stored in driving information recording in the above-mentioned storage medium in aforementioned recording medium.
11, driving information recording apparatus as claimed in claim 6 is characterized in that,
Also have secondary cell in driving information recording apparatus inside,
Continue the starting state of this driving information recording apparatus by this secondary cell.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP329526/2005 | 2005-11-14 | ||
| JP2005329526 | 2005-11-14 | ||
| JP227173/2006 | 2006-08-23 |
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| Publication Number | Publication Date |
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| CN1967598A CN1967598A (en) | 2007-05-23 |
| CN100585644C true CN100585644C (en) | 2010-01-27 |
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| CN200610144777A Active CN100585644C (en) | 2005-11-14 | 2006-11-14 | Driving information recording apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101405679B1 (en) * | 2011-10-11 | 2014-06-13 | 현대자동차주식회사 | An abnormal driving state detact and warning system which based on location-based service |
| US9465214B2 (en) * | 2015-01-29 | 2016-10-11 | Ford Global Technologies, Llc | Methods and systems for managing a vehicle computer to record information and images |
| CN105488868A (en) * | 2016-01-26 | 2016-04-13 | 深圳车宝宝电子科技有限公司 | Automobile traveling data recorder |
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