In recent years, with the continuous evolution of the Internet of Things technology, smart home applications have gradually integrated into people's daily life.Common smart home devices on the market, such as smart vision doorbells, home cameras (IPC), etc., are mostly wireless battery power cameras (hereinafter referred to as "wireless battery camera"). View the characteristics of the other, are widely sought after on the consumer market.According to Yole's latest forecast, by 2028, the shipments of such equipment will increase to 190 million.At the same time, the limitations of the wireless battery camera in terms of endurance still cannot be ignored: they generally use lithium batteries or dry batteries to power, and they need to be charged or replaced regularly.Therefore, high -performance, low -power camera system design solutions are imminent.

How does the wireless battery camera save power?

In order to reduce the power consumption of the system, advanced mainstream smartphones are usually equipped with the function of "raising the screen" or "gaze bright screen". The inside of the mobile phone is detected to activate the mobile phone from the interest screen to completely light up to reduce the power consumption of the mobile phone to reduce the power consumption of the phone. EssenceSo, can such low power designs be used for wireless battery cameras?

In fact, common wireless battery cameras also have a power -saving mode. Generally, passive infrared sensors (PIR) are used as a system awakened trigger. It is suitable for someone to recording.When someone enters the scope of the sensor detection, PIR generates a high -level signal, and triggers the camera system to start from dormant or standby state to record events within the visual range; when no one appears within the range of sensor detection, the camera system keeps dormant or standby status EssenceSuch a power -saving model design can greatly save system power consumption and storage capacity, and then enhance the battery life of wireless battery cameras.

Rapid start, why become a must -have black technology for wireless battery cameras?

Traditional low -power wireless battery camera systems are generally composed of image sensors (CIS), main control SOC chips, PIR sensors and other components.When the camera system is triggered by an event, the CIS in it first receives the ambient brightness value detected by analog optic sensitivity, and then rely on the image signal processor (ISP) on the main control SOC chip to adjust to the appropriate image shooting state.Even in a stable ordinary light environment, CIS's full startup time will take more than 250ms (> 0.25 seconds).Therefore, when the shooting person or animal is quickly moved within the visible range, the long response delay of the camera system will cause the brightness of the event image to have just reached a suitable state but the target has left.

To solve this problem, SmartSens, a technology -advanced CMOS image sensor supplier, has launched low -power rapid start -up solutions for low -power consumption -SmartaEC technology for smart Internet of Things applications.This technology takes into account the two major performance advantages of rapid wake -up and extremely low power consumption. Through functions such as the built -in AEC (automatic exposure control)/AGC (automatic gain control)/AWB (automatic white balance), CIS's millisecond -level wake -up.

01 speed awakening

Under the blessing of ultra -high start frame rate, CIS (hereinafter referred to as "Smartaec? CIS") equipped with Smartaec?<0.04秒)，在极暗或极亮的光照环境下完成启动则低至60ms以内(<0.06秒)，与业内传统CIS相比，启动耗时分别节省了约60%和67%以上，可为摄像头系统带来更加稳定精确的首帧画面，及时捕捉到事件全程的清晰影像。

02 Extremely low power consumption

Thanks to the role of built -in AEC and other functions, SMARTAEC? CIS does not only have a faster startup speed, but also has excellent low power consumption performance.SMARTAEC? CIS's work power consumption is as low as 60MW; compared with the traditional CIS in the industry, completing a single CIS fast start can save more than 85%of power consumption; its standby power consumption is as low as 10 μW.SMARTAEC? CIS with the rear low power consumption is the main control SOC chip, which jointly reduces the overall power consumption of the camera system to ensure that the wireless battery camera device has longer battery life.

03 cost advantage

Effective control is achieved in terms of cost:

Compared with the traditional low power consumption of CIS in the industry, Smartaec CIS has a significant advantage in chip size and cost.

The low -power camera design scheme minus the analog light resistance, saving the corresponding cost and power consumption for the entire system.

Compared with the low -power consumption of the main control SOC chip used with SmartaEC CIS, compared with the traditional fast -opening main control SOC chip in the industry, the cost advantage is better.

It is worth mentioning that in order to meet the needs of 24 -hour continuous recording of low -power cameras, Stewell jointly developed the second -generation SMARTAEC? The low -power consumption and fast start of the second -generation SMARTAEC? It can support full -time video (AOV) function. When the event is not triggered, the ultra -low power consumption of 1 frame per second is recorded. After the incident is triggered, it will be recorded at a speed. It is not only suitable for battery supply camera suppliers such as smart doorbell/locks, driving recorders, hunting cameras, etc., but also solve the problem of power -free equipment such as solar 4G monitoring.

As a company dedicated to high -end intelligent imaging technology, Stewell has witnessed and participated in the rapid rise of the Internet of Things industry.凭借在智能安防等领域的技术优势和对市场需求的持续关注，思特威自2020年起相继推出物联网系列(IoT Series)图像传感器，集SmartAEC?快启功能、低功耗、内置HDR、 High -sensitivity, high signal -to -noise ratio and other performance advantages are one, and with excellent imaging performance, they have obtained the trust and positive evaluation of market customers.

As of now, the Stewell 3MP to 4MP resolution IoT series image sensors have been mass -produced, and the new products of the 5MP resolution IoT series image sensor have been officially released.With the booming development of the Internet of Things technology, the era of all things is one step closer to us.In the future, Stewell will successively launch more high -performance IoT application series products, help the performance upgrade of the Internet of Things application terminals, and inject new technological driving force into the industry's high -quality development.

About SmartSens Technology

Stewell (Shanghai) Electronic Technology Co., Ltd. SmartSens Technology There are R & D centers in multiple cities and countries.

Since its establishment, Stewell has always focused on the innovation and research and development of high -end imaging technology, and has been recognized and favored by many customers with its own performance advantages.As a CMOS image sensor product company dedicated to providing multi -scenario applications and full performance coverage, the company's products have covered the full performance needs of security monitoring, machine vision, smart vehicle electronics, and smartphones.

Stewell will adhere to the vision of "front -edge intelligent imaging technology to make people better see and recognize the world", take customer needs as the core driving force, continuously promote the upgrading of frontier imaging technology, expand product applications, and work with partners together with partners Help the deepening development of future intelligent image technology.For more information, please visit:

www.smartStytech.com.