With the continuous improvement of living standards, the requirements for personal and property security are getting stronger and stronger, which also promotes the increasing demand for smart cameras, especially the demand for smart and powerful products will become larger and larger. However, in the current security industry market, there is a phenomenon of low-end solution repetitiveness, which has caused many companies to abandon the security industry and regard it as the Red Sea market. The difference is that Toshiba has added new functions and algorithms to the security design to avoid The repeated competition of customers is expected to lead the security market to a blue ocean.
As we all know, video surveillance is the basic link of intelligent security. High-definition display and large-screen splicing have all been brilliant. With the continuous increase of data volume, intelligent analysis, cloud storage and big data have become the top priority of smart security in the future. So how to seize this market demand is undoubtedly the top priority of security companies. In view of this, Electronic Enthusiast.com interviewed Mr. Wang Zhenyue, Chief of Toshiba Electronics, to discuss the prospects and design challenges of the smart security industry to help the rapid development of smart security.
Toshiba Electronics Chief Mr. Wang Zhenyue
Strengthen control chip structure layout, launch three data processing engines
In the field of intelligent security, how to differentiate the competitive advantage? Mr. Wang Zhenyue said that as a top ten semiconductor company in the world, combined with its excellent IP core and analog design resources, together with the general ARM core to create a variety of unique products to bring real value to users.
In terms of MCU policy, “De-facto Standard Core†+ “Application IP†will be the core. The De-facto standard core is based on the ARM® Cortex®-M processor family for embedded systems. The R&D application IP is based on Toshiba's original high-performance IP, which can be continuously developed with existing IP resources and analog resources. Combined with the new IP. At the same time, Toshiba also provides three special data processing engines to help in the application of intelligent security video surveillance:
The first is the Vector Engine (VE), which is mainly used in IF motor control. This engine mode cures the key parts of the FOC vector control algorithm. The user only needs to adjust the parameters to complete the FOC vector control algorithm.
The second is the Power Calculation Engine (PCE), which cures critical circuits in energy calculations and facilitates the design of energy calculation applications.
The third is the programmable servo controller (PSC), which is mainly used in high-precision motor control. The user can program the programmable servo control conveniently using assembly language.
Mr. Wang Zhenyue pointed out that Toshiba can provide reference programs based on programmable servo controllers, such as DC aperture closed-loop control algorithm and optical image stabilization algorithm to meet the user's design requirements and provide maximum service.
Strongly launched the three advantages of the lens control chip to show the "奇能"
In the entire lens control product line, Toshiba has a single M3 core M341, all-in-one M3 core chip M342, M343 and all-in-one M4 core M440 chip and other chips, for different customers can provide different products, M343 as Representative of M3 core chip, one chip controls the whole lens, including controlling zoom motor, focus motor, aperture motor, infrared filter motor, shutter motor and anti-shake mechanism motor, etc., while built-in flash memory and cache can meet the needs of different customers. .
M34 series is a lens control professional chip, which has been widely used in many civilian miniature cameras and single-shot cameras and security cameras. It is mainly composed of cortex M3 ARM+ multiple PSC programmable coprocessors + built-in motor drive circuit and lens control circuit. The main advantages are reflected in:
First, the all-in-one lens control chip, one chip can control the entire zoom lens, without the need for external complicated circuits. At the same time, the 7*7 BGA package saves the PCB layout cost for the customer and realizes the miniaturization of the product.
Second, it can control 4 motors at the same time, and control the zoom, focus, aperture and filter stepping or voice coil out of focus at the same time.
Third, the PSC programmable chip can run independently and share some of the work of the ARM core, which can reduce frequency and save power.
Mr. Wang Zhenyue said that Toshiba attaches great importance to cooperation with platform manufacturers and lens manufacturers. The emergence of the M34X series facilitates the rapid development of security products by customers. It not only provides control solutions for zoom lenses, but also provides industrial-grade optics to external lens manufacturers and platform manufacturers. Anti-shake overall solution.
Industrial-grade optical anti-shake solution delivers superior video accuracy
In terms of optical image stabilization, there are currently three main types: one is rack anti-shake (pTZ anti-shake), the main feature is suitable for heavy-duty gimbal, the shortcomings are manifested in over-sized, frequency response is slow and expensive; second is sensor Anti-shake is characterized by relatively simple design and great flexibility. The disadvantage is that the Sensor with a larger target surface needs to cooperate. When using it, it needs to calculate the heat and life. The third is the lens anti-shake. The feature is that the correction effect is the best, and the disadvantage is flexibility. Poor design is difficult.
Mr. Wang Zhenyue said that the M343 supports future OIS lenses and anti-shake frames. The 8-channel H-SW can drive all the motors in the OIS lens. It has enough PSC units and analog interfaces to support 2-axis voice coil motors in OIS. And DC voice coil motor, 2 to 3 PSC can support all 3 voice coil servo motor control.
Generally speaking, in the security, whether the gimbal or the focus motor inside the lens is a stepping motor, sometimes the acceleration state during operation, sometimes the steady state, and sometimes the deceleration state, etc., when the control precision is insufficient or the control algorithm When it is not good, it will lead to out of step, causing the focus to be unclear and the imagination of the gimbal positioning is not accurate. Mr. Wang Zhenyue said that Toshiba's chip has a hardware pulse counter circuit and registers for pulse counting instead of the traditional timer counting by the CPU, which can effectively avoid this phenomenon.
Pay attention to the layout of the intelligent security market, the global security ecosystem
Mr. Wang Zhenyue revealed that Toshiba’s share in the traditional camera control program is increasing every year, and the market share of the SLR body control chip reaches 60%. The market share of traditional cameras and SLR lenses reaches 20%, along with this year and domestic. The cooperation of Dachang has also been increasing in the security. Toshiba hopes to contribute to the global security market and contribute the best products and technical services. There are four specific measures:
1, the lens is the lifeblood of security cameras, the domestic excellent lens manufacturers emerge in an endless stream, many have a very strong technical background, Toshiba will cooperate with powerful lens manufacturers to carry out projects and programs to achieve a win-win situation.
2. Strengthen the cooperation of the main platform manufacturers to develop the next generation security program.
3, attach importance to the use of sensors, whether it is Toshiba products or other manufacturers' products, will cooperate and use.
4. For design, Toshiba will find and support some design companies with technical capabilities, work together on custom development, and continuously develop new products and technologies to meet the needs of more users.
In the field of professional cameras, Toshiba's ability to provide targeted solutions to different customers is also a highlight. Mr. Wang Zhenyue pointed out that Toshiba has different service strategies for different customer groups, such as when customers have strong development capabilities. To independently develop the autofocus algorithm and lens control algorithm, Toshiba will directly cooperate with the chip level to provide a complete development manual of the chip and detailed development tutorials and software and hardware design reference materials to facilitate the customer's independent design.
Finally, Mr. Wang Zhenyue said that for family security and even smart home, there are many products on the market at present, but they can't always grasp the user's needs. The reason is that many manufacturers have not found a real security or smart home platform. Talking about standards and agreements, we can't effectively meet the needs of users. I hope that there will be imaginative enterprises in the future to help the security market. Of course, I hope that Toshiba can have better solutions for everyone to shine.
This article is selected from the electronic enthusiast "Security Technology Special Issue", more quality content, download now
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