CN1787015A - Apparatus for recording traffic accident - Google Patents
Apparatus for recording traffic accident Download PDFInfo
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- CN1787015A CN1787015A CN 200410052532 CN200410052532A CN1787015A CN 1787015 A CN1787015 A CN 1787015A CN 200410052532 CN200410052532 CN 200410052532 CN 200410052532 A CN200410052532 A CN 200410052532A CN 1787015 A CN1787015 A CN 1787015A
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Abstract
The invention is a traffic accident recorder, comprising: sensor, CPU and memory. Under the control of the CPU, in order, in segments and uninterruptedly storing and recording the signal of the sensor, and repeatedly and continuously refreshing the record; as detecting an interrupt source instruction, stopping refreshing and protecting and latching. As compared with the existing techniques, ordinarily it continuously and in segments records and continuously refreshes the record and as the traffic accident happens, generates an interrupt source signal and stops refreshing and protects and latches. Thus, on the condition of limited memory capacity, the invention can in time, and accurately record important scene information of traffic accidents and can largely improve the efficiency and accuracy of related departments investigating and analyzing traffic accidents.
Description
Technical field
The present invention relates to a kind of high-fidelity document recording device, relate in particular to a kind of traffic hazard pen recorder that is used on the vehicles.
Background technology
Along with the vehicles based on vehicle are universal day by day, incident various traffic hazard disputes also emerge in an endless stream.At present, after traffic hazard took place, both parties often respectively said each based on the interests of self, had brought difficulty for the processing and the claim of relevant departments such as traffic police department, insurance company; And traffic accident often comes from moment, and its situation is ever-changing, and the measurement drawing of traffic accident's scene, interrogation record are post-survey after all, and unavoidable the generation is against factual judgement; And the processing time one, length then can cause traffic jam, and in fact this situation has been of common occurrence.Based on this predicament, people once considered to install camera head on the vehicles, and this camera head can be with various course outdoor scenes-and catch and be input in the storer, and the significant data that relevant departments only need read in the storer can accurately be judged qualitative.Yet because the course outdoor scene data of the vehicles are huge, this has increased the workload of analysis and judgement undoubtedly again; What is more important, it certainly will require the storer of high-capacity, and not only cost is high and implement very difficult.
In summary, the pen recorder of the traffic hazard of described prior art on reality is used, obviously exists inconvenience and defective, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of traffic hazard pen recorder, it is under limited memory capacity condition, can be in time, exactly important traffic hazard outdoor scene information is noted, this install not only the feasibility height and cost low, and can improve efficient and the accuracy that relevant departments analyze accident investigation greatly.
To achieve these goals, the invention provides a kind of traffic hazard pen recorder, comprise unit such as sensor, central processing unit, storer, under the control by central processor unit, sensor signal segmentation continuous uninterrupted successively carry out stored record, and back and forth will write down continuously and refresh; When detecting the interrupt source instruction, execution stops to refresh and protecting and latch.
The interrupt source of traffic hazard pen recorder of the present invention is that the refresh operation that is used for stopping to circulate changes the judgment signal of interrupting preserving operation over to, interrupt source signal is that "Yes" then enters the interrupt source instruction repertorie, that is: do interruption and preserve operation, the operation of state display reminding and reset operation, interrupt source signal is then carried out the circulation refresh operation for " non-".
The interrupt source signal of traffic hazard pen recorder of the present invention is made of hand control switch and chronotron, carries out to stop to refresh and protecting and latch.
The interrupt source signal of traffic hazard pen recorder of the present invention forms result by the computing comparer in the operational analysis of database and program by the engine rotational speed signal of gathering automobile, automobile driving speed signal, brake signal etc.
The interrupt source signal of traffic hazard pen recorder of the present invention is by sensor acquisition vibration measuring analysis, range finding analysis, thermal imaging analysis, more signal such as acoustic control analysis, graphical analysis, set up bigger database and analyze relatively discriminating program, under the support of high speed central processing unit, in the requirement of response time, finish to analyze forming the interrupt instruction signal.
In the traffic hazard pen recorder of the present invention, when the result who detects interrupt source is "Yes", then carry out and stop to refresh and running program is latched in protection, with current record section complete " writing " good after, if the current default working storage of memory cell that is in is then gone into storer to the unloading of this segment record, be changed to a read states simultaneously and send hint instructions and the state idsplay order, with the wait that resets of every pointer, the enabling signal that resets enters holding state, so that read operation etc.; If " write " state at storer, be read-only latch mode then with memory device, send out demonstration, hint instructions, reset instruction enters holding state.
In the traffic hazard pen recorder of the present invention, when the result who detects interrupt source is " non-", then continue to carry out " writing " recording operation continuously, and automatically reset after " writing " intact each segmentation, refresh cycle " is write " operation.
The sensor unit of traffic hazard pen recorder of the present invention adopts imageing sensor, realizes photoimaging by optical lens.
The imageing sensor of traffic hazard pen recorder of the present invention adopts big wide-angle to have anti-shake and the high frequency sound camera low-light compensate function.
The sensor unit employing electronics of traffic hazard pen recorder of the present invention is photosensitive, thermal sensing element constitutes, and realizes photoimaging and thermal imaging.
The sensor unit of traffic hazard pen recorder of the present invention adopts the standard time register: realize with the precise time being the document recording of coordinate with date and local standard time.
The sensor unit of traffic hazard pen recorder of the present invention is gathered automobile instrument and state parameter: brake signal, engine speed and Vehicle Speed signal etc.
The sensor unit of traffic hazard pen recorder of the present invention also comprises the sound signal sensor of microphone or acoustic pickup.
The sensor unit of traffic hazard pen recorder of the present invention also comprises the vibration signal sensor and the acceleration signal sensor of induction mechanical vibration, impact signal.
The central processor unit of traffic hazard pen recorder of the present invention carries out pre-service to the simulating signal that sensor sends together with the sensor digital signal after analog to digital conversion, be transferred to the central processor unit s operation control again.
The central processor unit of traffic hazard pen recorder of the present invention is made up of control chip and control analysis software; Ffm signal, control signal are carried out the acquisition process analysis relatively, realize will be compound information contiguous segmentations such as the figure of document recording, literary composition, sound and time store, show the duty of this machine simultaneously and to the connected reference of interrupt source.
Traffic hazard pen recorder of the present invention, when general supply and facility switching unlatching, central processor unit just reads primary data, makes equipment enter duty, the signal that sensor unit is sent in the data acquisition process unit is handled, and is distributed to follow inspection module and operational analysis comparer.
The control operation of the central processor unit of traffic hazard pen recorder of the present invention be do to central processing unit buffering working area deposit write operation in, carry out the searching of interrupt source, by segmentation ffm signal is written in the storer; Differentiating when need stop to refresh keeping records, on one side continue " writing " intact this segment record, send on one side and stop refreshing instruction and change over to and keep live program, be about to that this segment information latchs and memory device for a read states and make equipment enter holding state.
The central processor unit of traffic hazard pen recorder of the present invention is after obtaining manually temporary instruction, required temporary record will be specified, be written in the working area of the reservation in the memory cell or segmentation followed the inspection parameter and subtract one, realize temporary function with the method that reduces the record hop count with software.
The live image information segmenting of traffic hazard pen recorder of the present invention is put into memory cell continuously, whenever finishing a segmentation writes and deposits N second before the operation, point out with interrupt instruction and search for, do not enter the circulation Flushing status when there is the interrupt source signal input just to automatically reset in second at N, entering circulates to write next time deposits; When interrupt source is that "Yes" is then carried out " interrupt preserve operation ", that is: after having write this segment record, stop refresh cycle, the ffm signal of fragmented storage is latched change a read states over to.
The ffm signal of traffic hazard pen recorder of the present invention is through the reading displayed device, and the parameter of the wide-angle lens that uses according to imageing sensor encrypts the picture signal of storage, by the reduction of the software in reading displayed device playback.
The memory device of traffic hazard pen recorder of the present invention is in protective cover, and this protective cover adopts high strength housing and heat insulation cushion, and carries out encapsulation process.
Traffic hazard pen recorder of the present invention is by the control of central processing unit; carry out stored record with transducing signal segmentation successively is continual; and back and forth will write down continuously and refresh; when taking place, traffic hazard produces interrupt source signal; execution stops to refresh and protecting and latch; thereby this device can be under limited memory capacity condition; can be in time, exactly important traffic hazard outdoor scene information is noted; not only feasibility height and cost are low for it, and can improve efficient and the accuracy of relevant department to the traffic hazard investigation and analysis greatly.
Brief Description Of Drawings
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effect apparent by detailed description to preferred embodiment of the present invention.
In the accompanying drawing,
Fig. 1 is the composition frame chart of traffic hazard pen recorder of the present invention.
Fig. 2 is the interrupt source flow chart of traffic hazard pen recorder of the present invention.
Fig. 3 is the interrupt source signal occurring principle block diagram of traffic hazard pen recorder of the present invention.
Fig. 4 is the photosensitive image sensor composition frame chart of traffic hazard pen recorder of the present invention.
Fig. 5 is the central processing unit FB(flow block) of traffic hazard pen recorder of the present invention.
Fig. 6 is the display page one embodiment block diagram of the display of traffic hazard pen recorder of the present invention.
Embodiment
Hereinafter, will describe the present invention in detail.
The invention provides a kind of traffic hazard pen recorder, as shown in Figure 1, it is shown by sensor unit 1, data acquisition process unit 2, central processor unit 3, memory cell 4, equipment state and points out alarm unit 5, manual adjustment control module 6, IO interface 7, power supply 8, housing unit 9 to be set, to read with display unit 10, protective cover 11 and form.Here main is the 1 document recording equipment to the unit 8 formation.Important embodiment of this device is particularly used on the automobile at recording vehicle exactly.
Have following notion to need explanation in advance in this instructions:
1) interrupt source: be to be used for stopping to circulate refresh operation and to change the judgment signal of interrupt preserving operation over to, as shown in Figure 2, when interrupting source signal is that "Yes" then enters the interrupt source instruction repertorie, that is: do interruption and preserve operation, the operation of state display reminding and pointer reset operation, when then carrying out the circulation refresh operation for " non-"; Its process is a loop nesting program that has computing, analysis and logic.
2) generation of interrupt source signal: as shown in Figure 3, can have hand control switch and chronotron to realize, be referred to as " manually " here; Can form the result by the computing comparer in the operational analysis of database and program with the parameter of travelling (engine rotational speed signal, automobile driving speed signal, brake signal etc.) of gathering automobile triggers interrupt source and is referred to as " semi-automatic " here; Can also be with intelligent, by the more signal of sensor acquisition, set up bigger database and comparative analysis program, for example: vibration measuring analysis, range finding are analyzed, the thermal imaging analysis, acoustic control analysis, graphical analysis etc. are under the support of high speed central processing unit, in the requirement of response time, finish to analyze forming the interrupt instruction signal, be referred to as " automated intelligent " here.Here will illustrate when judging interrupt source signal: 1. the manual triggers signal is highest the interruption; 2. analyze engine rotational speed signal and be the second level and interrupt,, when after one section time-delay, still not having engine rotational speed signal, will directly send the interrupt instruction operation by display reminding of routine analyzer when collecting engine rotational speed signal when being zero; 3. third level interruption is: in the time of will collecting brake signal, rate signal and engine signal analysis-by-synthesis, enter the relatively state of analyzing, if continue the rate signal rate signal of acquisition monitoring automobile also is zero, then entering the prompting wait routine delays time behind the certain hour again, if the detection speed signal still is zero then sends the interrupt instruction operation once more, if "No" then continue to gather and refresh; If do not consider the equipment cost factor certainly, add more sensor signal and analysis and Control software and realize to interrupt exciting of the steering order that refreshes; Central processor unit passes through the display reminding program module with the signal instruction of various acceptance simultaneously, the duty of this equipment is shown, such as: (being undertaken by methods such as sound, light) controlled in total power light, the work warning light that follows inspection Flushing status pilot lamp, each segment memory unit, prompting caution; Handle the right and wrong of searching sensor signal (comprising sound control signal) and hand push button signal again by delay procedure wait operation comparer; "Yes" is just sent interrupt instruction and is stopped to refresh, and enters to latch read-only preservation state after this segment record is finished, and " non-" continues circulation and refresh.
3) interrupt preserving operation: as shown in Figure 2, when the result who detects interrupt source is "Yes", then carry out to stop to refresh protecting and latch running program (being called for short " interrupting preserving operation "), with current record section complete " writing " good after, if the current working storage that is in, then storer is gone in the unloading of this segment record, be changed to a read states simultaneously and send hint instructions and the state idsplay order, with the wait that resets of every pointer, the enabling signal that resets enters holding state, so that read operation etc.; With current record section complete " writing " good after, if the current storer that is in, be read-only latch mode then with memory device, send out and show and hint instructions that reset instruction enters holding state.
4) circulation refresh operation: when the result who detects interrupt source was " non-", then continuation was carried out continuously " writing " recording operation and is automatically reset after " writing " intact each segmentation, and refresh cycle " is write " operation (being called for short " circulation refresh operation "); Make that the ffm signal of record is always up-to-date.
Below just each parts of traffic hazard pen recorder of the present invention be elaborated.
1) imageing sensor: being that, thermal sensing element photosensitive by optical lens and electronics, picture signal switching software and IO interface constitute, is one of critical component of sensor unit 1, to realize photoimaging or thermal imaging; Can single head and bull; Fig. 4 is a kind of photosensitive image sensor composition frame chart, and it is a techniques well known, is not described further at this, what deserves to be mentioned is that photoelectrical coupler and analog to digital converter will satisfy the frequency response requirement among Fig. 4.Here, the employed camera of imageing sensor, should have wide-angle lens, manual or sensitization auto iris satisfies 24 hours situations such as weather, the requirement of the blur-free imaging of light activated element, and have anti-shake compensation software and low-light compensator, make equipment can satisfy at relative velocity higher and have necessarily rock be can be clear the live supply equipment memory cell 4 of document image store and keep; Add the auxiliary record of infrared thermal imaging head in case of necessity.
2) standard time register: be accurate to centisecond with date and local standard time and realize with time being the document recording of coordinate.
3) automobile instrument and state parameter sensor: be used to respond to brake signal, engine speed and Vehicle Speed signal etc.
4) sound signal sensor: be commonly called as microphone or acoustic pickup, be used for recorde audio signal.
5) vibration signal sensor: be used to respond to mechanical vibration, impact signal.
6) acceleration signal sensor: the acceleration signal that is used for induction generator.
Annotate: by the necessity ordering, first is indispensable, certainly adorns more sensor.
Data acquisition process unit 2: the simulating signal that all the sensors sends is carried out pre-service together with the sensor digital signal after digital-to-analog conversion (A/D), be transferred to central processor unit 3 s operation control again.Certainly, also data acquisition process unit 2 can be integrated in central processor unit 3.
Central processor unit 3: form by control chip (microprocessor) and control analysis software; Ffm signal, control signal are carried out the acquisition process analysis relatively, realize will be compound information contiguous segmentations such as the figure of document recording, literary composition, sound and time store, show the duty of this machine simultaneously and to the connected reference of interrupt source, realize interrupting preserving the function that operation and circulation refresh according to "Yes" and " non-" of interrupt source; And control reset, make equipment after finishing writing task, enter corresponding waiting status, cycle index state or shutdown.The process description of central processing unit: as shown in Figure 5, in the hand switch group, (general supply and facility switching are arranged, temporary switch, latch switch, reset switch etc.), when general supply and facility switching unlatching, central processing unit just reads primary data, make equipment enter duty, the signal that sensor is sent in data acquisition process unit 2 is handled, be distributed to the high speed acquisition data and follow inspection module (abbreviation follow inspection module) and computing comparer (according to the sampled signal of following inspection, realize full intelligence or semi-automatic control operation with comparer, form interrupt source) compound shift knob and the specific temporary shift knob of manually latching, form control store instruction; 1) by the address segmentation ffm signal is written in the storer.2) when differentiation need stop to refresh keeping records (connected reference interrupt source then is to need to interrupt refresh activity when interrupt source is "Yes"); The control operation of central processing unit is: continue " writing " intact this segment record on one side, send on one side and stop refreshing instruction and change over to and keep live program, be about to this segment information and latch, and memory device for a read states and make equipment enter holding state (this is to interrupt the protection operation); 3) after obtaining manually temporary instruction, the central processing unit execution command will be specified required temporary record, be written in the working area of the reservation in the memory cell 4 or segmentation followed the inspection parameter and subtract one with software, realize that with the method that reduces the record hop count temporary function is (because when reality is used, may need to preserve document recording repeatedly, in order to reading when needing); The duty of this machine of display reminding and simultaneously to the connected reference of interrupt source.
Memory cell 4: be used to store live information, separated regions, the section of establishing is the live digital signal of handling through central processor unit 3 of being gathered and being handled well by sensor unit 1 and data acquisition process unit 2 by the software program fragmented storage in the district, and the minimum need in this unit are established two districts when being provided with the working area; Memory cell 4 can adopt the mode that patches so that data recording reads and live the playback, and memory cell 4 also can be provided with protective cover 11 to shield.Consider the actual conditions that equipment uses, select a certain amount of storage space storage chip for use, utilize the operation of segmentation refresh control, realize with the record of limited record segment to special ffm signal.If do not consider the element of installation cost, certainly use such as: electronic storage devices such as hard disk, CD burning or magnetic recording reach the effect of storer.
Equipment state shows and prompting alarm unit 5: show the duty of this equipment, whether prompting stops to follow inspection, changes the demonstration of various work condition states such as temporary or preservation state etc. over to.Memory device is in protective cover 11, and protective cover 11 adopts high strength housing and heat insulation cushion, and carries out encapsulation process.
Manual adjustment is provided with control module 6: comprise total power switch, accident temporary button, live save button, reset button and be provided with and adjust button etc.
IO interface 7: rigging up and debugging interface and data read output interface are provided.
Power supply 8: for " equipment " provides reliable electric power supply; Can self-contained battery or external power supply.
Housing unit 9: be used to install and fix and safeguard function, this housing unit 9 can protect the effect that the destruction that can resist certain big impact and vibrations and high temperature ablation and water and chemical gas liquid is played " black box " that reaches with the memory cell 4 special system shells of employing (being protective cover 11) as required.
Read and display unit 10: be used for reading and live playback of live view recorded information, it can be a kind of reading displayed device: the parameter of the wide-angle lens that uses according to imageing sensor, the picture signal of storage is encrypted, by the reduction of the software in reading displayed device playback.Can there be multiple mode to realize reading of signal and shows embodiment:
Embodiment one: computer+special software+data line.Add special-purpose drive installation software with computer exactly, and live view playback is shown on the display screen of computer, offer a display page, with the sound of institute's acquisition and recording, as showing by the time of origin course with other characteristic parameters by data line.
Embodiment two: portable.Be exactly portable reading displayed device of specialized designs, the display page form solidified on chip, play the effect same, can be used for using when the Installation and Debugging of this equipment and relevant department read playback with above-mentioned embodiment one.
Read with the display page of display unit 10 and can use various scheme implementations, reach the effect of being convenient to reflect on-the-spot circumstance.Fig. 6 is a kind of embodiment block diagram of display page, and total form of this display page comprises a plurality of display windows such as " many scapes and single scape are selected display window ", " the trade mark display window of rolling and product during the date ", " the signal display windows of sensor acquisition such as brake, speed, acceleration, vibration, impact ", " sound signal display window ".
The basic functional principle process of traffic hazard pen recorder of the present invention is:
As shown in Figure 1, under the control of central processor unit 3, with sensor unit 1 signal, through data acquisition process unit 2 with the live sight signals such as video, audio frequency, brake, speed per hour and engine speed of course in time, after A/D conversion and software processes, under the control of storage Control Software, divide multistage (1 to N) continuous uninterrupted stored record (carrying out " writing " operation) successively; And follow back detection by 1 to N order and refresh continuously with back and forth will " writing " to write down, remain up-to-date N segment record; Carry out simultaneously and detect the interrupt source instruction repertorie; that is: when testing result is "Yes", then carry out and stop to refresh protection and latch running program (being called for short " interrupting preserving operation "); then continue to carry out continuously " writing " recording operation when " non-" and after " writing " intact N section, do refresh cycle and " write " operation (being called for short " circulation refresh operation "), with reach catch and write down we need the purpose of important sight live telecast.After unloading or the work of reading are finished, restart by reset key.
The present invention can get off the extraordinary live sight keeping records of automobile, and the fetch equipment by special use reproduces live sight.The recorded information of traffic hazard is sound shape and looks not only, and can also simultaneously the main state parameter of automobile be pressed time course demonstration in the lump and reappear.
The embodiment of traffic hazard pen recorder of the present invention comprises two classes: a class is provided with " scratch pad " in buffering working area in central processing unit, another kind of then is " directly the depositing formula " of not establishing the working area in the central memory.
1) a kind of not high embodiment of memory span that requires: buffer storage is set in central processing unit, and this district's minimum capacity should satisfy the space of temporary two document recordings; The workflow of storage control program is: do to the buffering working area deposit write operation in, carry out the searching of interrupt source, when interrupt source then continues to deposit write operation for " non-",, enter depositing of second section document recording to write up to finishing first section document recording; When interrupt source is "Yes", then send interrupt instruction, interrupt source is a comparison loop nested procedure that branch is multistage here.The operational motion of interrupt instruction is to keep this segment record finish or delay time a bit of time (as equaling the remaining record segment period of this section), carry out operation simultaneously, be implemented in the purpose of the required document recording of preservation in the storer to this section of storer unloading document recording; Change this equipment over to state that standby is waited for after unloading is finished, after obtaining reset signal, change duty again over to.Finishing when first section document recording does not have interrupt source and when entering second section document recording, deposit on the one hand and send hint instructions when writing second section document recording, trigger and show, the prompting alert program (can be a sound, the mode that the various instruments of forms such as light use) detects the "Yes" and " non-" of interrupt source signal simultaneously, second section interrupt instruction operation is the same with first section corresponding part, "Yes" is then deposited to write on one side and is finished this segment record, on one side to this segment record of storer unloading, if " non-" then continues to deposit write operation up to being filled with this segment record, carry out the circulation refresh operation, this is " scratch pad ".
2) one of embodiment of " directly depositing formula " is exactly: with the single camera that can satisfy automobile driving speed frequency response requirement and standard time generator under the programmed control of central processing unit, the live image information segmenting of compound time signal is put into memory cell continuously, the duty of (show and prompting storer and this machine) whenever finishes a segmentation and writes and deposit N second before the operation, point out with interrupt instruction and follow inspection, do not enter recurrent state when there is the look-at-me input just to automatically reset in second at N, promptly carry out " circulation refresh operation " and enter to circulate to write next time depositing; When interrupt source is that "Yes" is then carried out " interrupt preserve operation ", that is: after having write this segment record, stop refresh cycle, the ffm signal of fragmented storage is latched change a read states over to.(the time length of segmentation and hop count can be set according to the size of used storer, numeral and prompting mode sound, the light etc. of the N in advance second that can determine simultaneously to be correlated with).Interrupt source signal can obtain with the mode of simple hand switch, and adds the mode that the alarm program waits for time-delay and will recover refresh cycle automatically to the back at delay time.Such scheme cost lower (individual character according to the user requires also time-delay to be interrupted being arranged to delay time to system being changed to the preservation holding state), this is " type hand ".
3) the more complete embodiment of the function of Tui Jianing: high frequency sound camera, time reference signal generator, brake signal inductor, this vehicle speed inductor and the engine rotational speed signal inductor, data acquisition process unit, central processing unit and the storer that adopt big wide-angle to have anti-shake and low-light compensate function are formed; Storer is (disposable lock pin certainly is installed as required, is the true and reliable property of relevant unit's protection record data) that can peg graft and take away, and this is " automanual system ".
4) the full-automatic embodiment of certain intelligence is arranged: the many information records of multi-angle, low-light compensation, intelligence are caught the storage of high capacity multistage, many spaces and are preserved the important information record, show the content that also can install the simultaneously direct displayed record of monitor by customer requirements additional except that general state, available software is set or fixing or timesharing circulation demonstration playback when a plurality of camera probe, simultaneously can also add heat sensitive sensor, the thermal imaging sweep record is carried out at the scene, and the compensation visual light imaging is in the deficiency at night; Add bigger database, video and audio signal is compared analysis can realize more senior Based Intelligent Control, this is " intelligent ".
5) central processing unit also can be used for signals such as image, brake, acceleration are carried out the processing of pattern videotex except carrying out the various signals of gathering are stored.Being easy to reading displayed uses.But this scheme has higher rate request to central processing unit, thereby the cost height.A kind of scheme cheaply is, pattern signal DP display processor is placed on the reading displayed processing unit, can carry out the signal display process by the requirement of various related departments better like this.Can reproduce live on-the-spot various characteristic informations.
Be understandable that; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (22)
1, a kind of traffic hazard pen recorder, comprise unit such as sensor, central processing unit, storer, it is characterized in that under the control by central processor unit, sensor signal segmentation continuous uninterrupted successively carry out stored record, and back and forth will write down continuously and refresh; When detecting the interrupt source instruction, execution stops to refresh and protecting and latch.
2, traffic hazard pen recorder according to claim 1, it is characterized in that described interrupt source is that the refresh operation that is used for stopping to circulate changes the judgment signal of interrupting preserving operation over to, interrupt source signal is that "Yes" then enters the interrupt source instruction repertorie, that is: do interruption and preserve operation, the operation of state display reminding and reset operation, interrupt source signal is then carried out the circulation refresh operation for " non-".
3, traffic hazard pen recorder according to claim 2 is characterized in that described interrupt source signal is made of hand control switch and chronotron, carries out to stop to refresh and protecting and latch.
4, traffic hazard pen recorder according to claim 2 is characterized in that described interrupt source signal forms result by the computing comparer in the operational analysis of database and program by the engine rotational speed signal of gathering automobile, automobile driving speed signal, brake signal etc.
5, traffic hazard pen recorder according to claim 2, it is characterized in that described interrupt source signal is by sensor acquisition vibration measuring analysis, range finding analysis, thermal imaging analysis, more signal such as acoustic control analysis, graphical analysis, set up bigger database and analyze relatively discriminating program, under the support of high speed central processing unit, in the requirement of response time, finish to analyze forming the interrupt instruction signal.
6, according to claim 3 or 4 or 5 described traffic hazard pen recorders, when the result when detection interrupt source who it is characterized in that is "Yes", then carry out and stop to refresh and running program is latched in protection, with current record section complete " writing " good after, if the current default working storage of memory cell that is in, then storer is gone in the unloading of this segment record, be changed to a read states simultaneously and send hint instructions and the state idsplay order, with the wait that resets of every pointer, the enabling signal that resets enters holding state, so that read operation etc.; If " write " state at storer, be read-only latch mode then with memory device, send out demonstration, hint instructions, reset instruction enters holding state.
7, according to claim 3 or 4 or 5 described traffic hazard pen recorders, it is characterized in that when the result who detects interrupt source is " non-", then continue to carry out " writing " recording operation continuously, and automatically reset after " writing " intact each segmentation, refresh cycle " is write " operation.
8, traffic hazard pen recorder according to claim 1 is characterized in that described sensor unit adopts imageing sensor, realizes photoimaging by optical lens.
9, traffic hazard pen recorder according to claim 8 is characterized in that described imageing sensor adopts big wide-angle to have anti-shake and the high frequency sound camera low-light compensate function.
10, traffic hazard pen recorder according to claim 9, its feature is at described ffm signal process reading displayed device, the parameter of the wide-angle lens that uses according to imageing sensor encrypts the picture signal of storage, by the reduction of the software in reading displayed device playback.
11, traffic hazard pen recorder according to claim 8 is characterized in that described sensor unit employing electronics is photosensitive, thermal sensing element constitutes, and realizes photoimaging and thermal imaging.
12, according to Claim 8 or 11 described traffic hazard pen recorders, it is characterized in that described sensor unit adopts the standard time register: is the document recording of coordinate with date and local standard time realization with the precise time.
13, according to Claim 8 or 11 described traffic hazard pen recorders, it is characterized in that described sensor unit gathers automobile instrument and state parameter: brake signal, engine speed and Vehicle Speed signal etc.
14, according to Claim 8 or 11 described traffic hazard pen recorders, it is characterized in that described sensor unit also comprises the sound signal sensor of microphone or acoustic pickup.
15, according to Claim 8 or 11 described traffic hazard pen recorders, it is characterized in that described sensor unit also comprises the vibration signal sensor and the acceleration signal sensor of induction mechanical vibration, impact signal.
16, traffic hazard pen recorder according to claim 1, it is characterized in that described central processor unit carries out pre-service to the simulating signal that sensor sends together with the sensor digital signal after analog to digital conversion, be transferred to the central processor unit s operation control again.
17, traffic hazard pen recorder according to claim 16 is characterized in that described central processor unit is made up of control chip and control analysis software; Ffm signal, control signal are carried out the acquisition process analysis relatively, realize will be compound information contiguous segmentations such as the figure of document recording, literary composition, sound and time store, show the duty of this machine simultaneously and to the connected reference of interrupt source.
18, traffic hazard pen recorder according to claim 17, it is characterized in that when general supply and facility switching unlatching, central processor unit just reads primary data, make equipment enter duty, the signal that sensor unit is sent in the data acquisition process unit is handled, and is distributed to follow inspection module and operational analysis comparer.
19, traffic hazard pen recorder according to claim 18, the control operation that it is characterized in that described central processor unit be do to the buffering working area of central processing unit deposit write operation in, carry out the searching of interrupt source, ffm signal is written in the storer by segmentation; Differentiating when need stop to refresh keeping records, on one side continue " writing " intact this segment record, send on one side and stop refreshing instruction and change over to and keep live program, be about to that this segment information latchs and memory device for a read states and make equipment enter holding state.
20, traffic hazard pen recorder according to claim 18, it is characterized in that described central processor unit is after obtaining manually temporary instruction, required temporary record will be specified, be written in the working area of the reservation in the memory cell or segmentation followed the inspection parameter and subtract one, realize temporary function with the method that reduces the record hop count with software.
21, traffic hazard pen recorder according to claim 18, it is characterized in that the live image information segmenting puts into memory cell, whenever finishing a segmentation writes and deposits N second before the operation, point out with interrupt instruction and search for, do not enter the circulation Flushing status when there is the interrupt source signal input just to automatically reset in second at N, entering circulates to write next time deposits; When interrupt source is that "Yes" is then carried out " interrupt preserve operation ", that is: after having write this segment record, stop refresh cycle, the ffm signal of fragmented storage is latched change a read states over to.
22, traffic hazard pen recorder according to claim 1 is characterized in that described memory device in protective cover, and this protective cover adopts high strength housing and heat insulation cushion, and carries out encapsulation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052532 CN1787015A (en) | 2004-12-07 | 2004-12-07 | Apparatus for recording traffic accident |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052532 CN1787015A (en) | 2004-12-07 | 2004-12-07 | Apparatus for recording traffic accident |
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| CN1787015A true CN1787015A (en) | 2006-06-14 |
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| CN 200410052532 Pending CN1787015A (en) | 2004-12-07 | 2004-12-07 | Apparatus for recording traffic accident |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115129A (en) * | 2011-12-21 | 2014-10-22 | 英特尔公司 | System and method for intelligently flushing data from a processor into a memory subsystem |
| CN104537729A (en) * | 2015-01-09 | 2015-04-22 | 哈尔滨工程大学 | Anti-shake intelligent automobile data recorder with all-dimensional target tracking function |
| US10795823B2 (en) | 2011-12-20 | 2020-10-06 | Intel Corporation | Dynamic partial power down of memory-side cache in a 2-level memory hierarchy |
| CN112330844A (en) * | 2020-11-06 | 2021-02-05 | 养哇(南京)科技有限公司 | Enhanced driving recording method and system |
-
2004
- 2004-12-07 CN CN 200410052532 patent/CN1787015A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10795823B2 (en) | 2011-12-20 | 2020-10-06 | Intel Corporation | Dynamic partial power down of memory-side cache in a 2-level memory hierarchy |
| US11200176B2 (en) | 2011-12-20 | 2021-12-14 | Intel Corporation | Dynamic partial power down of memory-side cache in a 2-level memory hierarchy |
| CN104115129A (en) * | 2011-12-21 | 2014-10-22 | 英特尔公司 | System and method for intelligently flushing data from a processor into a memory subsystem |
| CN104115129B (en) * | 2011-12-21 | 2017-09-08 | 英特尔公司 | System and method for the intelligent refresh data from processor to memory sub-system |
| CN104537729A (en) * | 2015-01-09 | 2015-04-22 | 哈尔滨工程大学 | Anti-shake intelligent automobile data recorder with all-dimensional target tracking function |
| CN112330844A (en) * | 2020-11-06 | 2021-02-05 | 养哇(南京)科技有限公司 | Enhanced driving recording method and system |
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