Analysis of Single-chip Heart Rate Monitor Solution
With the development of the Internet of Things technology, wearable product technology has been widely used, among which the wearable health detector can detect a variety of major physiological indicators of the human body at any time and anywhere, and when an abnormality occurs, an alarm is issued and the monitoring information is wirelessly transmitted. Go to a professional device or a personal cell phone. There are various wearable health detectors on the market, including heart rate monitor, blood pressure monitor, fat content tester, sleep monitor, etc. This article mainly introduces the application of CypressPSoCBLE in wearable heart rate monitor. Heart rate refers to the number of heart beats per unit time. It is an important parameter that reflects whether the heart is working properly. At the same time, the heart rate value is also an important indicator of physical strength and mental labor intensity. Therefore, it is necessary to design a heart rate tester that can be worn at any time, can record for a long time, display and store heart rate values, can communicate with mobile phone Bluetooth and has strong anti-interference ability, and can alarm the heart rate beyond the normal range. . Design heart rate monitor products will encounter the following problems: 1. It needs low-power Bluetooth communication and mobile phone to carry out information exchange, timely feedback the user's heart rate information for test, and allow users to set related settings through the mobile phone; 2, need to use AFE (analog front end) circuit and filter circuit to measure the heart rate signal, AD sampling accuracy of heart rate signal accuracy has a greater impact; 3, need to provide customers with the user button interface, such as capacitive touch buttons; 4, need to provide a segment LCD LCD display measured heart rate value; 5, need to achieve low power consumption to extend the product's standby time, which can use button batteries. CYPRESS's PSoCBLE series products can solve the above design problems and requirements. PSoC? 4 is an extensible and reconfigurable platform architecture that includes ARM? Cortex? - M0CPU's programmable embedded system controller. It combines programmable, reconfigurable analog and digital modules with flexible, automated routing resources. The PSoCBLE family of products based on this platform integrates microcontrollers, wireless modules and subsystems of Bluetooth Low Energy (BLE, also known as Bluetooth Smart). Other features include digital programmable logic, high-performance analog-to-digital conversion (ADC), comparator mode op amps, and standard communication and timing peripherals. The following is a block diagram of the PSoCBLE heart rate monitor solution. The PSoCBLE series products provide a simple and easy-to-implement single-chip BLE solution for heart rate monitors, and provide a standard heart rate test profile case for developers' reference. On-chip programmable op amps and SAR ADCs are available for heart rate signal detection and filtering. The product integrates the CapSense user interface for capacitive touch buttons, sliders and touchpads. It also integrates an LCD segment LCD driver for displaying heart rate signals. Five flexible, configurable low-power modes are available for low-power applications and can be used to extend the product's standby time. In addition, BALUN circuits are integrated into the product to make the antenna design easier. In addition, PSoCCreator software for graphical visualization provides developers with a friendly, easy-to-use development environment that can significantly shorten the developer's development cycle and speed time-to-market. To sum up, CYPRESSPSoCBLE series products can provide a perfect solution for heart rate monitor, single chip solution to the application of the product, not only meet the actual needs of the product, but also can save the development cost and development cycle. Ejector Header Connector,Dual Row Ejector Header Connector,Single Row Ejector Header Connector,Gold Plated Ejector Header Connector Shenzhen Jinyicheng Electronci Technology Co.,Ltd. , https://www.jycconnector.com