NXP-血压计解决方案

Release time:2017-06-13
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source:ameya360
reading:236


近年来大量研究表明,我国高血压发病率逐年增高,由此而导致的心脑血管病患者也逐年增加,已成为危害人民健康的重要问题,心脑血管病目前已是我国人民主要死亡原因之一,也是危害老干部健康和生活质量主要因素。高血作为重要的危险因素参与了心脑血管事件的发生,监测血压是医生对患者制定降压治疗方案的重要依据;是评估血压控制是否达理想目标值水平,以及预防靶器官损害和并发症的判断标准。因此,对每一 高血压患者监测血压的意义不言而喻,尤其是老年高血压患者。另外,据资料显示我国高血压发病率已达11.2%,并呈上升趋势。我国每年新发高血压约300万,且我国高血压防治面临着“知晓率低、治疗率低、达标率低”的问题,影响我国高血压防治的重要因素是缺乏合理的血压监测及血压测量不规范,要彻底改变这种现状必须提高全民健康防病意识,家庭中自我血压监测就显得尤为重要。

高血压是可防可治的慢性病,早期发现、早期治疗、合理用药可有效减缓靶器官损伤,提高生存质量。临床上经常有患者在发生严重心血管并发症时(如脑卒中、心肌梗死)才得知患有高血压,或高血压患者治疗期间未定期监测血压,仅凭感觉服药。造成该现象的主要原因包括高血压易患人群不测或较少测量血压,以及服用降压药物的患者测压频率低或方法不当,导致其治疗依从性差或血压管理质量不高。2013欧洲高血压学会(ESH)欧洲心脏病学会(ESC)高血压管理指南进一步强调家庭自测血压(HBPM)的预后价值及在高血压诊治方面的作用,仅次于动态血压监测(ABPM)。

随着生活方式的改变和人口老龄化,我国高血压患病率呈逐年增长的态势,高血压是导致老年人充血性心衰、卒中、冠心病、肾功能衰竭及主动脉瘤的发病率和病死率升高的主要危险因素之一,严重影响老年人的健康长寿和生活质量。

目前越来越多的家庭都配备了血压计,血压计以成为消费电子类产品中必不可缺的产品。下面这个解决方案是NXP支持最新血压计,其可测量平均动脉压(MAP)并使用算法来导出收缩压和舒张压数值,以便跟踪患者的心血管健康。监控LCD屏幕上的显示读数,并由我们的一个低功耗8位或32位MCU来驱动。

NXP血压计参考设计展示了NXP产品的传感、数据通信和处理功能如何交互,形成一个完整的手持终端医疗解决方案。

· 该设计为那些需要灵活扩展的设计提供参考

· 恩智浦使用8位MC9S08QE128和32位MCF51QE128 (两者都是引脚、外设和工具均兼容的Flexis QE128系列的成员),使医疗解决解决拥有智能,用户可以自由地选择所需要的性能 

该设备使硬件开发人员在材料部件方面被设计要求更高的集成。在layout方面给出不同区域走线模块化的设计视图。每个模块都代表一个单独的块和添加只有当创建一个新的设计。下图显示了高端的框图血压监测演示。低端的设计可以使用相同的硬件设计和印刷电路板,而不是填充区域,系统中不使用。例如,低端应用阳离子可能没有能力有连接;因此,签署的材料清可能不包括与连接相关联的硬件。

特性

· 使用上升和下降法测量动脉压

· 各种语言的导航菜单附带语音生成器功能,以声音播报结果采用SMAC协议实施的无线射频接口,可将数据发送到其他协调器、路由器或端点设备。

· USB接口可用于下载MRAM (外部存储器)中存储的历史数据。

· 采用近接传感技术的导航按钮

· 用于图形显示屏的OLED

· 实施低功耗技术

产品配备

· 传感器:

 MC34940,电场接近传感器

· 微控制器:

Flexis QE微控制器

Flexis JM微控制器

· 收发器:

MC13202Zigbee收发器 



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NXP will ship this year as many as five SoCs made in Samsung’s 28nm fully depleted silicon-on-insulator (FD-SOI) process, including one that has been sampling for six months. Samsung is expected to announce its FD-SOI roadmap in May and is already working on RF and in-house embedded MRAM for it. An NXP executive showed the first samples of the products at an event here, a key milestone in a long journey for FD-SOI. The next big step is finding an embedded non-volatile memory for the process, given embedded flash is expected to hit limits at 14nm. A Globalfoundries executive declined to say when it expects to ship the first commercial chip in its 22nm FD-SOI or how many tapeouts it has completed in the process. The company announced its first FD-SOI tapeout last year and said it now has 70 customer engagements. “Our FD-SOI business is small right now, but it will be mainstream,” said Ryan Lee, a vice president of foundry marketing for Samsung. One chip designer at the event said his company has been interested in FD-SOI for a long time. It made a test chip at STMicroelectronics but chose to work on commercial designs with Samsung because Globalfoundries was not ready until Sanjay Jha became the foundry’s CEO, after the fabless company made its decision. NXP's Geoff Lees shows samples of his FD-SOI i.MX chips. (Image: EE Times) NXP described four 64-bit ARMv8 and one 32-bit ARMv7 embedded SoCs under its i.MX brand, three now in production in Samsung’s FD-SOI process. Over the next two years, the family will cover a performance range that scales by a factor of 25, five times more than its planar-based i.MX chips, each design optimized for different performance and power characteristics. “I don’t think that would be possible without 28nm FD-SOI,” said Geoff Lees, general manager of NXP’s microcontroller group. A high-end automotive SoC will run up to eight 1080-progressive displays and run without a fan. “It’s operating in conditions that would kill a cellphone,” with three orders of magnitude better reliability, Lees said. An i.MX 7ULP announced in March includes independent application and real-time domains. It targets a wide range of markets from home automation to wearables. Long term, Lees said FD-SOI promises better ADCs and lower power radios. For example, he expects single-antenna 802.11n Wi-Fi on the power budget of Zigbee and other 802.15.4 protocols and an ability to take “Bluetooth Low Energy to new record power levels, opening up new apps at new cost points.”
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