Архив Категории: Новости отрасли

Currently,it is very common for a cellphone with a 8 million, 12 million or even 20 million pixels camera,but when it turn to car camera, we may found the normal reverse car camera only with 0.3 million pixels, a car camera with one million pixels was regarded as HD camera,why ?

The main reason is that the traditional automotive industry with features of “slow”, any new technology and products to be used in the car must go through a long R & D and verification period, the phone can changing generations once a year,but the car needs at least five years. Of course, finally it depends on the market and the cost. This is a general answer to this question.

From technical point view, whether it is high and low temperature, vibration, EMC problem etc., can be fully designed in accordance with the car requirements. Mobile phone camera with the consumer price chip,it is fine to change car-level chip on car.

Since the technical is not a problem, then why the car camera pixels is still so low ?

A complete camera system should include a camera ( mainly regarded as video/image sensor ), the video transmission (including CVBS LVDS and Ethernet) and the display device (lcd display).

Firstly, camera sensor: currently meet the car-level requirements sensor and has been mass production is mainly 0.3 million pixels camera (which is used in everyone’s car), and 720P camera ( with around 1 million pixels ) two types. 720P image sensor is only mature in recent years. At present, the price of the two image sensors is about three times in difference. Technical requirements can be met,but the final cost will be relatively increased a lot.

Secondly, the transmission:
Standard definition: the current normal quality camera are used CVBS signal format transmission, CVBS is probably used twenty years ago at home on cable TV. Theoretical transmission resolution is only a few hundred thousand pixels. This transmission method is very mature, and has been used in the car for a long time, there is no problem. And the signal can be directly sent to the image sensor output, no additional encoding chip needed, but has a low requirements for the transmission cable. Its advantages are the cost and stability. The most important is that most lcd display reserved input interface is also CVBS.
High definition: including LVDS and Ethernet two types. First LVDS codec chip is not cheap, wire is also very expensive,and used in camera only in recent years. Ethernet car PHY is also very expensive, but no requirement for wire, although the Ethernet in the civilian sector has been mature, but in the car only a few famous car manufacturers such as BMW dare to use.

Thirdly, the display, it is still the video interface problems, because almost all of the display manufacturers reserved the interface for car cameras are CVBS, that can only use a 0.3 million pixel camera. To display the 720P camera, you must set aside the LVDS or Ethernet video interface. Camera manufacturers and display manufacturers are generally not the same company, so they will not just make changes for you,only car manufacturer can promote their change, and the car manufacturers are very sensitive for the use of new technologies and costs , Unless all competitors are using, then they will seriously consider. Frankly speaking, our company has been developed the 720P car camera two years ago, but till now there are still few domestic car manufacturers really intend to use it.

Technically really no problem, the problem is that the car manufacturer is not willing to spend such manpower and cost.For the new things and technology, in general,Europe and the United States may try first in luxury car,then in civilian car, and then use in Chinese market through the joint venture in China.Now a lot of luxury cars in Europe and America used a 720p high definition camera, and I guess it still need 5 years to be popular in Chinese and other developing countries civilian class car , so let’s just wait for it.People who can not wait to buy, can buy a 720p rear view car camera from after market, and use a display that can match this hd car camera.

To avoid unnecessary responsibility and road fraud in traffic accidents,more and more car owners considering to buy or already bought a driving recorder. Ms. Lee spent around $50 to buy a driving recorder. a month later, the plastic case edge of the driving recorder has been spoilt since the installation is close to the front windshield. Professionals warning that during purchase and use of driving recorder,consumers should be careful, because poor quality products may cause the vehicle to spontaneous combustion.

Car owners:buy driving recorder for different purpose

Reporters found that car owner buying driving recorder for different purpose. Most owners are to protect their own rights when the traffic police or insurance claims investigation on site after accidents.There are owners think that the vehicle damage is affordable, if involved in the casualties of traffic accidents, if there is no monitor or no witness, then there may be a big trouble, driving recorder may be useful at this time. While the owner Mr.Zhang has another purpose,he is particularly fond of self driving travel, during rest on weekends he often drive whole family to the suburbs to have fun, usually there are beautiful scenery along the road, but as he need to drive all the way, so he can only ignore these beautiful scenery, a driving recorder can help to automatically photographing beautiful scenery during driving .

Driving recorder industry insider:poor quality driving recorder may cause spontaneous combustion to the vehicle

A dealer told reporters in Beijing Automotive Products Exhibition, a dealer told reporters that although driving recorder has been popular for years, but there are still many bad quality driving recorder on the market,below are some common knowledge about driving recorder:
A).Driving recorder and GPS navigator is similar, tconnect the driving recorder to the cigarette lighter, it can only work during the car running , once the car stopped the driving recorder can’t work too. If the battery is installed, some recorders can only work less than two hours after parking. The vechiles being designated, stolen and other issues, the driving recorder simply can’t achieve 24 hours a day video recording functions.
B).The shooting angle is not wide enough. Recording angle recorded by driving recorder lens from 70 degrees to 170 degrees range, no matter how you adjust the driving recorder, it can only taken the video in corresponding angle.
C).There are a wide range of driving recorder in the market now, ranging from 30USD to 500USD. Usually those hidden built in mounting style driving camera quality is better. For driving recorder cost only 30-70USD, owner should pay more attention during purchase and use. Because those driving recorders will be connected to the cigarette lighter. The more cheaper the driving recorders are, the more inconsistent with the car part , once the driving recorder with poor power protection and poor accessories, it may easy happen line ignition phenomenon, it is likely to cause the vehicle spontaneous combustion. With the rising temperature, the overall temperature of the car will continue to rise too, especially in summer, the maximum temperature of inside the car may up to 60 degree, if the driving recorder accessories quality is not good, the ignition point is too low, it is easy to catch fire, and then causing vehicle spontaneous combustion.

Insurance company: they have encountered only a few driver with the recorder evidence

In a motor vehicle rapid claims center, the company’s staff told reporters that they are agents of many insurance companies quickly claims business, they has only encountered a few car owner use the driving recorder evidence.
It seems that most of the car owners install driving recorder with the original intention of evidence taken for the accident, but only a few of them really use these evidence .However,driving recorder is still considered to be necessary equipment for either old car or new car. But car owner should pay attention to the driving recorder quality. In addition, the driving recorder appearance is almost same as a mobile phone, better to install in a hidden place inside the car, so it won’t bring security risks to owner.

When we choose a видеорегистратор, we will certainly pay attention to the mastering chip ( we usually call it sensor ) of the dashboard camera. The common sensor used in the driving recorder were Ambarella, TI,Novatek,Zoran,STK and so on.

Today we would like to share you some knowledge about dashboard camera sensors.

1. Ambarella sensor from Unites States: Ambarella is the leader in high definition video industry, mention the name of Ambarella, it is estimated that no one did not know it in video industry, their sensor used to adopt by DV, and gradually used in the dashboard camera , their common sensor models are A1, A2, A3, A5, A7, A9,A12 ;A7 and A12 sensors are mainly used in high end dashboard camera with expensive price, A2 mainly used for common dashboard camera.

2.TI sensor by Texas Instruments from United States: it is estimated that few people heard about TI in video industry, its headquarter located in Dallas,Texas,United States, TI chip is mainly used in South Korea,TI sensor is the No.2 in this industry.

3.Novatek sensor from Taiwan: Novatek common sensor models are 96620,96630 and 96650, Novatek sensor is a bit cheaper than Ambarella and TI sensor, but their quality reliable too,ranked after the Ambarella and TI in video sensor industry. Dashboard cameras with Novatek 96650 sensor and magnesium light has a particularly clear video at daytime, while they can still guarantee a good night vision effect in the night, so dashboard camera with Novatek sensor is a good choice both for buyer or end consumer.

4. Zoran, STK these sensors I do not introduce them one by one here,as they are generally used in low end dashboard camera, the price is relatively cheap.

Ps: Shenzhen Luview Co.,ltd mainly adopt Ambarella or Novatek sensor for our dashboard cameras.

As you are already have a видеорегистратор installed on your car or you are going to buy a dashboard camera, and you don’t want to read the endless user manual, but you still have some questions about car dashboard camera. One question usually will be how can i access video recorded by car dashboard camera ? Below are four different methods.

1.Taking out the TF memory card from the dashboard camera,loading it into the card reader, and then connecting to the computer, you can use read the contents inside the TF memory card like using an U disk,sourcing the folder one by one you can find the video file.

2. Connecting the car dashboard camera to computer or laptop with a USB cable, the computer will identify the dashboard camera as mass storage devices, and sometimes there are screen prompts, you need to select the storage device. You can read the videos after you can the storage device,souring method same as above.

3. A lot of dashboard camera with lcd display itself, you can also play in the dashboard camera, the method is generally stop the video recording first, and then press the mode key, you can find the video which has been recorded, click ok to play it.

4. Some dashboard camera such as Luview branded built in hidden dashboard camera with WiFi function,you can use the corresponding mobile phone APP to watch the recorded video on the mobile phone. However, while the phone connected with dashboard camera, the phone will automatically disconnect the mobile network, so you can’t receive message from constant messenger such as Skype,MSN,QQ,Wechat etc,after checking the recorded video, remember to disconnect your cellphone WiFi connection with dashboard camera , otherwise it will affect the usage of cellphone.

Видеорегистратор для приборной панели в настоящее время является базовым оборудованием многих автомобилей. Установка видеорегистратора на приборной панели может обеспечить безопасность вождения и одновременно предотвратить мошенничество на дороге. Однако если видеорегистратор установлен в неправильном положении, он не только не сможет обеспечить безопасность вождения, но и может увеличить слепую зону спереди, что создаст серьезную угрозу безопасности вождения. Ниже приведены ошибки при установке видеорегистратора, которых следует избегать пользователям:

1. Шнур питания находится посередине.

Некоторые владельцы автомобилей устанавливают видеорегистратор с подключением к источнику питания прямо посередине автомобиля. Это может привести к тому, что кабель питания будет болтаться во время движения и мешать обзору водителя, создавая угрозу безопасности. Правильным способом является скрытое прокладывание кабеля питания, например, в швах салона или в уплотнителе.

2. Установлен в правом верхнем углу переднего окна.

Некоторые автовладельцы считают, что камера, установленная на лобовом стекле, ближе к губке и не будет влиять на обзор. На самом деле, такое расположение значительно снижает эффективность камеры. Хотя угол обзора современных камер не маленький, неправильное расположение может значительно увеличить слепую зону спереди, что приведет к обратному эффекту. В конце концов, только камера с максимальным эффективным углом обзора может лучше записывать окружающую обстановку.

3. Подключите кабель питания видеорегистратора к источнику питания лампы для чтения.

Поскольку источник питания лампы для чтения относительно независим, а его расположение очень близко к переднему стеклу, многие владельцы автомобилей напрямую открывают корпус лампы для чтения и подключают видеорегистратор к цепи питания лампы для чтения. Таким образом, даже если автомобиль выключен, видеорегистратор может продолжать работать за счет резервного питания автомобиля. Это может привести к тому, что водитель не сможет завести автомобиль в следующий раз, поскольку резервное питание будет полностью израсходовано видеорегистратором.

Для установки видеорегистратора лучшим местом является задняя сторона зеркала заднего вида, откуда открывается наилучший обзор.