[Review of TI Live Broadcast on January 16] Which smart cloud lock is the best? (Including video, PPT, QA, etc.)[Copy link]
【January 16 live broadcast review and related resources】 The attention to smart cloud locks is continuing to heat up, and power consumption and security have become important criteria for selecting design solutions. In a recent online live training, the TI expert team talked about how key wireless connection technologies such as Bluetooth and Sub-1G in smart cloud locks can achieve keyless and secure unlocking. If you fail to watch the live broadcast in time, you can learn about the live broadcast through the following content. Video:>>Click to watch the live videoLive PPT智能云锁市场及 TI SimpleLink 无线连接平台概述.pdf(1.54 MB, downloads: 26)
1. How do you solve the problem of low power consumption when the smart lock runs for a long time? Answer: For the low power consumption of smart locks, it only refers to the low power consumption at the system level, including the power module, wireless module, and motor drive. For power modules, TI has an introduction to smart lock power solutions. For details, please refer to 查看详情. For wireless modules, in addition to the chip's own low transceiver current and sleep current, software cooperation is also required, such as TI RTOS with a power management module, a stable protocol stack, etc. 2.What is the main communication method of smart cloud locks at present? Answer: Different application scenarios will use different wireless technologies. Home locks that are directly controlled by mobile phones use BLE. Home locks that need to be linked with other Zigbee smart homes use Zigbee. In a hotel environment, a gateway is used to centrally control dozens of door locks using Sub-1GHz. If you just want to obtain the historical unlocking records of a door lock, you can also use Wi-Fi and upload them regularly. 3. Can smart locks connect to routers directly through WIFI and achieve low power consumption? Answer: Of course, the main features of TI's new generation WiFi CC322X series are low power consumption and security. There are two modes for low power consumption support, one is to maintain connection mode and the other is called indirect connection. The maintain connection mode depends on the router beacon interval. Wi-Fi enters the LPDS state, 135uA, and the average current is about 1mA at a 100ms beacon interval. 4. How long does it take for a smart lock to unlock? How much current is used for each action? A: It depends on the specific wireless technology used. If it is Bluetooth-related, you can learn about TI reference design 查看详情5. Does the smart cloud lock need to be connected to the Internet all the time? How to solve the security problem of the Internet connection? A: TI considers low power consumption from multiple aspects, from the 128-bit unique ID that comes with the chip itself, code security, to WPA2 enterprise, to end-to-end TLS/SSL. 6. Can Zigbee and Bluetooth 5.0 achieve remote unlocking (i.e. remote unlocking, can the lock power consumption be controlled)? Answer: If Zigbee and Bluetooth need to do remote unlocking, they both need to rely on a gateway to achieve it. This gateway may be Zigbee+WiFi/Ethernet, or BLE+WiFi/Ethernet 7. If the cloud can unlock the lock, that is, the lock's receiving radio frequency must be turned on all the time or intermittently, the power consumption will be very high. How long can the lock battery last? Does TI's solution consider this? Answer: A very good question. It is indeed a challenge to have both low power consumption and the ability to receive data. Different technologies have different implementation methods. For example, Zigbee uses active querying to query whether the gateway has downlink data. If there is no data, it will immediately go to sleep. 8. Does TI have any measures for the security of smart locks? A: For more information about TI's security measures, please visit http://www.ti.com/processors/embedded-processors/security.html 9. Will TI launch an M3 core Bluetooth chip with an internal flash of 256k bytes or more? Currently, the 128k bytes of CC2640 and CC2640R2F are a bit small. A: R2 can be considered as the 256K version. In addition to the 128K flash, there is also a 110K ROM. TI has put some protocol stacks and TI-RTOS, and drivers into the ROM. The actual user application code is about 80~K. Of course, the subsequent new generation AGAMA will support more than 350K flash and 80Kram, so you can pay more attention to it. 10. I used CC2540 to develop projects before, but later I gave up because this chip was incompatible with many domestic Android phones' Bluetooth communication. Does TI currently have a dual-mode Bluetooth chip that supports domestic Android phones' Bluetooth better? Answer: Compatibility is not one-sided. Both TI chips and SDKs are certified by the Bluetooth Alliance. Some incompatibility issues do exist. Please make sure to use the latest SDK. In addition, for your consideration of compatibility, you can consider the dual-mode chip CC2564 series. 11. What are the advantages of the SimpleLink development platform compared to other similar IoT platforms? Answer: It is an ecosystem that includes a unified development platform, a unified driver, and a unified user experience. 100% of the code can be used across platforms. It is a one-size-fits-all solution, and customers have a small development investment. 12. In addition to the server, will the encryption key also be known to internal personnel? Will there be double password protection? Will there be various encryption methods used in combination, digital signatures, digital certificates, WIFI chips, passwords or U shields? How can the encryption method be the safest? Answer: The private key is not known to internal personnel. It is stored in the chip and cannot be taken out by anyone, not even the developers. This is TI's approach, and it is very secure. 13. The SensorContoler part of CC2640R2F cannot meet the requirements of applications that require 3-way UART (only 2-way is supported). The IO simulation UART method based on TI-rtos cannot meet the requirements. Is there a solution? CC2642 supports 3-way UART. When will CC2642 be available? Answer: There is no software for 3 serial ports. Can you consider using MSP432 that supports more UARTs with CC2640, or consider using MSP430FR2000, a 25-cent low-cost MCU, to expand one serial port. 14. Is the CC13xx protocol stack also semi-open source? Answer: 15.4-Stack, part of the bottom layer is library, and most of it is provided in source code form. 15. What are the frequency points of TI's 15.4? Can the protocol decoding be completed directly through a single chip? Answer: Currently supports 433, 868, 915, a single CC1310 will do. 16. Does the 15.4 private protocol have advantages in terms of security? Is there any document describing the security issues of 15.4? Answer: Use the AES-128 encryption algorithm and the framecounter technology to prevent retransmission 17. Does TI currently have an SoC that integrates WiFI and BLE? Answer: Not yet. However, TI has two chip reference designs, which can be found at http://www.ti.com/lit/ug/tidua62b/tidua62b.pdf18. [url=http://www.ti.com.How many devices can the SDK provided by CC2640 connect to at most? What is the minimum connection time in low power mode? Answer: Up to 7-8 connections can be achieved, and the minimum connection interval can be 7.5ms 19. Does TI have products that support BLE5.0? Can Zigbee 3.0 be used for CC2530? Answer: CC2640R2F supports BLE5.0, and CC2530 can support Zigbee 3.0 20. What are the characteristics of the new generation WiFi CC322X series? What is the minimum power consumption? Answer: Low power consumption and safety are the main features. There are 6 other features. Please pay attention to TI official website and deyisupport. For example, IPV6, HOMEKIT, 1AP with 4Station. The minimum power consumption can be 4.5uA, but it still depends on different modes.
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