A: the recorder function and optional skills

1: recorder function

 

1), anti pengci. Often walk on the road, which can not scratch, a lot of people crossing the road and ride around, and if they have a scratch, it is likely to be a blackmail and impose exactions on if you have, the recorder, the driver can provide effective evidence for their own. Many traffic accidents are caused by violation, tachograph installed, 20 seconds before and after the accident scene can be reconstructed, completely eliminate the "pengci".

 

2), traffic accident responsibility identification. There was a machine equipped with many years of driving experience than on the recorder. There are more than ten years of driving experience, Zhou said the master, now more and more novice, their driving technology is not good, after the accident and like buck, mounted tachograph can nip in the bud. The traffic police department said, traffic accident, sometimes because the vehicle moved, and can not cover all the monitoring sections, it is difficult to judge. Then, if the vehicle tachograph installed, you can restore the truth of the accident.

 

3), for DV video. Like driving a friend, can also use the tachograph to record the process of conquering hardships and dangers. When driving, walking video, while the time, speed, location are recorded in the video, a "black box". Tachograph, DV shooting fun at home, or as a home monitoring, usually can also be used for parking control.

The 2: recorder to buy skills

 

The main parameters of the recorder recorder: the shooting angle, resolution, pixel camera with CMOS, video resolution, night vision, video circulating ability etc..

 

1), shooting angle
Many businesses have claimed that their product is wide, the visual range of up to 140 degrees and 270 degrees, no dead. But the wide angle brings another problem, is prone to blur. So when the accident happened on the side of the video, the vague may also bring some trouble for the owners. Of course, when the factory has been the focus in this discussion is not within the scope of.
Purchase skills: the focus of product quality issues, the majority of copycat products will have quality problems in this area. The user can remove the video, if the edge caused by fuzzy wide-angle circumstances, close objects still showed blurred, so, probably you are driving recorder in copycat copycat. So the owners also should not blindly pursue the wide-angle effects, generally 120 DEG ~140 DEG angle can meet the daily driving demand for video, as long as the choice of the correct installation position.

 

2), see traffic recorder resolution.
The recorder is the owner at the time of the accident, on the recorder records, an instrument that can find the truth. Therefore, image clarity is important. If the recorder clarity is not enough, then it will be recorded at the time of the accident the image moment is very subtle, not to play the role of application.

 

3), and the video camera pixel resolution /CMOS and night vision.
The higher pixel camera, better imaging. While CMOS and CCD compared to smaller power consumption, less noisy night imaging, so a good tachograph CMOS is one of the key factors, such as light plus LED, can effectively improve the ability of the night shot. The video resolution is generally 1440 X 1080/1280 X 720 X 480 / 848 / 848 / 640 X 480 X 480.
Optional skills: image pixels of the camera is high can get better, the user can use other digital equipment in the time of purchase, such as digital camera, mobile phone etc.. With the recorder and other digital products to shoot the same picture comparison, we can immediately out of high quality. As for night vision, LED lamp number does not represent the night vision capability. The user can select the same picture video in light and dark conditions respectively, then compare.

 

4), the video recording time and cycle ability
Most of the tachograph have circular shooting ability. The cycle time taken is recommended in 1 minutes. Because the shooting time is too long, once the memory card is full, easy to record files before coverage, easy to affect a long file; while filming time is too short, is to find the owner of record of trouble. The video time and products related to the internal, external storage. The length of time and memory card capacity taken, generally support the SD card or TF card,
Optional skills: either use the SD card or TF card as storage devices and influence is not very big, but the recorder will use some of the more compact than TF card recorder using SD card in size, easy to install in the vicinity of the rearview mirror. So that the choice of storage equipment products for TF card. Install the product, try to test high speed video is smooth
 

5), some other advice
See tachograph there is no HD video output port. Pay attention to the design of portable recorder now in appearance, the screen is relatively small, if the traffic accident, by visual restrictions. HDMI HD video output function is perfect to avoid this, can directly convert high-definition video output to full HD display, showing clear picture on the big screen, to restore the truth. Details see traffic recorder records. This is to be used to check the evidence and other details, relatively speaking is very important, mark tachograph recorded image will have the time and date, such evidence is more convincing, but also facilitate the processing of traffic police, and also to maintain the legitimate rights and interests of the owners.

 

The purchase and use of 3: TF Card

 

The full name of T-Flash (TransFLash), which is Motorola and SanDisk jointly launched a new generation of memory card specifications, it uses the latest packaging technologies, and combined with the latest SanDisk NAND MLC and controller technology. The size (11mm x 15mm x1mm), is about half a SIM card, Trans-Flash Card is a member of the SD Card members, with a SD adapter, can be compatible with any SD card reader, TF card via SD card converter, when the SD card. T-Flash card is the smallest flash card, suitable for various multimedia applications.Trans-flash products using SD architecture design, SD Association at the end of 2004 officially changed its name to Micro SD, has become a member of SD products.
The main parameters and the TF card is the transmission speed, and capacity.
The transmission speed (speed of writing and reading speed) is defined as [Class2 (2MB/sec), Class4 (4MB/sec), Class6 (6MB/sec), Class10 (10MB/sec)] (minimum speed) SD2.0 specification for the performance of the SD card can be divided into several grades, different grades can not meet the requirements of different applications: Class 0: less than Class 2 and unlabeled Speed Class case;
2: Class film, SDTV, can meet the digital camera shooting MPEG2 MPEG4 ordinary watch;
Class 4: can smooth playback of high-definition television (HDTV), digital camera shooting and other needs;
Class 6: meet the use of SLR camera shooting and professional equipment requirements;
Class 10: meet the requirement of high speed storage needs.
Added: Class grade is 8KB per second conversion, if 8KB per second not to write speed corresponding to it, the card is fake! Class4 8KB file written as 4MB Class10 per second is written for 8KB 10MB write speeds on a small degree of float, because the reader is also affect writing.
The capacity is also critical, too small, with not much, and now the recorder have automatic circulation function, the results will be too small to cover the front video. So according to the requirements of the specification, greater priority machine support capacity, the minimum recommended above 8G.
In addition, now on the market a lot in the appearance of innumerable TF card, C4 C6 or C10 superscript,, actually, not the regular market or can not provide invoices and barcode normal, and not three, many are false. It must be to the regular market to buy the TF card, when the accident, the key thing is not recorded, let you regret the wasted

 

The use of TF card:
When your machine, the replacement of the TF card, recommended a new first computer formatted in the TF card, the machine, with a re format format tool. Because of you this new "new" card, can be used to format or upgrade or take pictures, or a small program on picture format, in the format case, insert your machine, you must go to the machine to recognize these data with his brain, such as the successful identification, the lucky; but if these data can not be identified, the machine may appear Huaping crash, etc..

Two: the recorder using a small coup
1: how to make the recorder you shoot more clearly

 

1), please buy your tear film recorder on the lens, the lens will be clean.
The regular manufacturers in the recorder attached to a small film shot in the factory, in order to protect the lens is dirty, but we take the time to remove the small film, otherwise it will affect the shooting effect. In addition, the recorder lens for a long time with the likely contamination to our fingerprints and other dirty things, the lens is equivalent to the recorder "eyes", before recording, must put things in front of eyes blurred vision cleared, so as to let the eyes see the scene outside, recorded a sharp image.

 

2), please clean the windshield, give a tachograph clean and clear "glasses"
Why do you have to clean the windshield, we all know that the recorder is installed in the car windshield glass above the windshield, shooting the scene outside, if the windshield has accumulated a lot of dust, the equivalent of people who wear glasses glasses on the ash, so look outside nature is vague,, must I clean the windshield.

 

3), the exposure value is set
When the camera and photography, we know that overexposed or underexposed, pictures or video effects are not very good, the recorder is the same, general manufacturers have enough factory default settings, in the dark environment should pay attention to proper exposure, while good brightness values can be local exposure this is a bit low, shot out of the video data will be more real.

 

4), focal length adjustment
When it comes to the focal length, a lot of tachograph also have a zoom function, but after all the professional camera there are gaps, but so when shooting the focal length adjustment should not be too big or too small, it will also affect the shooting recorder.
Three: what is the tachograph maintenance skills
First, we need to consider the problems of household tachograph what problems will be encountered in the process of using? Generally the most common problem is that we are in the process of using, dust and other dirty things will encounter with the recorder on the lens, resulting in decreased, the video quality is not clear, so the recorder camera needs as a key protection to carry out maintenance.

 

1, lens protection: household tachograph in the use process, must pay attention to the one with his tachograph to UV, then in some special occasions (such as moisture big place) due to many uncertain factors may lead to the lens fouling, then UV mirror can protect the lens is good

 

2, clean protection: after household tachograph use for too long, will be a lot of dust, so often with a soft cloth to wipe the recorder, to keep clean (a little alcohol use when necessary). The cleaning tool must be prepared, including washing ear ball, small brush and lens paper etc..

 

3, battery protection: built-in battery recorder is mostly lithium battery, battery charging three times in 12 hours or so, so that the battery storage capacity maximized as far as possible, the subsequent charging can be full of. Batteries should be kept in a cool dry environment, then we travel, and try to avoid the battery and general metal articles together, resulting in the short circuit of the battery.

 

4, the stability of protection: when we put the recorder installed in the car, must be installed firmly. If the installation is not strong, so the recorder will be with the vehicle while shaking, so the recorder of the original internal damage is very large, so we can not regularly check the recorder is strong.

 

5, to prevent the high temperature exposure: household tachograph also belongs to precision electronic products, and usually without high temperature sunscreen, so as far as possible not to let the recorder a long time in the environment of high temperature exposure. Or when we buy direct purchase of high temperature recorder.

 

Four: tachograph common fault solution
Crash: the possible reason is the use of low speed card or the card is not compatible with this machine
Solution: after using the card format is not used in normal circumstances, suggestions for Zhang card;

 

2, recording the time will automatically stop: a possible cause is due to the huge amount of HD video data
Solution: use high speed TF card and SDHC compatible, high speed TF card will be C4 or C6 logo;

 

3 regular class4 and above the SDHC card, the card can be normal in other machines, this machine can not be normal card
Solution: the card stored in program files or other models that have been damaged, then please format the card, and then use the;

 

4, the image may cause is hazy: because the lens is not clean, or the front windshield clean enough
Solution: clean the lens;

 

5, black or shining image: a possible cause is due to high contrast scenes, affect the function of the machine automatic exposure
Solution: adjust the sensitivity function;

 

6, cloudy or indoor conditions, image is not perfect
Solution: adjust the white balance;

 

7, the image horizontal stripes: interference may cause is due to the arrangement of the source frequency error
Solution: according to the local power supply frequency, the corresponding set 50HZ or 60HZ;

 

8, video noise: a possible cause is due to the low power
Solution: the recorder records the full charge;

 

9, do not boot: may cause is the lack of electricity, the battery is damaged, the cards are not compatible.
Solution: charging, change compatible card;

 

10, the recorder playing video card, leak seconds, incoherence: may cause is the card is not compatible, the player.

 

Solution: change speed card, the card format, another player;

 

11, the car charger can not automatically boot record: may cause is the car charger does not match
Solution: the charge transfer;
Five introduction: tachograph related key technologies

 

1:G-sensor Technology
G-sensor is Chinese gravity sensor means (English name is Gravity-sensor), it can change the perceived acceleration force, acceleration force is the force on the object when the object role in accelerating the process, such as shaking, falling, rising, falling and other mobile changes can be G-sensor into electrical signals, and then through the calculation analysis the microprocessor can complete the program design, good function, such as MP3 according to user's swinging direction, after replacing the song, when the pocket can also calculate the user's pace. For example, IBM series of high-end high-end notebook also built G-sensor, in the perception of dramatic acceleration (such as drop), immediately to protect the hard disk, hard to avoid damage.

 

Simply put, G-Sensor is the intelligent gravity sensor system, the application can detect the current state of the hard disk on the hard disk, when an accidental fall, will produce acceleration, hard disk induction acceleration, the head will automatically return, the disc body and head separation, prevent write operation in reading by the impact of the accident, the protection of hard disk in order to effectively.

 

The application of this technology in the mobile phone, can be a software application, according to user actions such as games, mobile phone users waving, the game will also have the corresponding reaction, micro electro mechanical systems like Wii (MEMS).

 

In the use of the recorder, when the car by gravity, gravity sensor (G-Sensor) can be recorded at the time of the XYZ driving shaft, X: acceleration about change; Y: changes during acceleration; Z: acceleration of the change on the axis, a clear understanding of the impact direction (such as car crashes) and before the incident and forced to record 10 seconds and 20 seconds after the spare memory, and will not be circulating video out, the owner did not find the license plate and provide favorable evidence.

 

In addition to use the original battery video, lest the tachograph due to exposure to the sun and the external power supply voltage because of long time, high definition processors due to overwork and fever causes the tachograph crash black phenomenon. Some tachograph like the use of small skills, owners can also own accumulation, in general is to take good care of the equipment.