Abstract: In order to facilitate the patient's blood glucose test, long-term storage of test data and timely diagnosis of doctors, a mobile blood glucose monitoring system was designed. The system consists of a number of Java-based mobile phone blood glucose detectors and a diabetes monitoring center for remote consultation and remote monitoring. The MSP430 MCU blood glucose tester is connected to the Java mobile phone through the serial port. It not only completes the detection function, but also uses the SMS function of the mobile phone to send the detection value and the diagnosis of the receiving expert. Since the volume is only 3m2, it can be well integrated with the mobile phone. The hardware system of the diabetes monitoring center is mainly composed of a server and MC35 wireless communication module. The software system is mainly responsible for completing the functions of controlling the MC35 to receive short messages and data storage, management and maintenance. Through testing, the design satisfies the predetermined requirements. 1 Overview of blood glucose monitoring system Diabetes is one of the four major diseases that endanger human health. There is no cure at all, and diabetes can only be controlled through blood glucose monitoring. The appearance of blood glucose meter greatly facilitates diabetes patients to monitor their own blood sugar. In order to make better use of wireless network resources and facilitate users to measure anywhere, anytime, a blood glucose monitoring system based on mobile communication was developed. The mobile communication-based blood glucose monitoring system consists of two major components: a mobile blood glucose meter and a diabetes monitoring center. The working mode is shown in Figure 1. Diabetes patients can monitor blood glucose at any time by using a mobile phone blood glucose meter. The monitoring center receives the patient's blood glucose level through the GSM network and feeds back appropriate diagnostic conclusions. The mobile phone uses MotorolA388c. The blood glucose meter is a blood glucose tester developed by Jilin University Instrument Institute with MSP430 single-chip microcomputer and enzyme electrode sensor. It connects to the mobile phone through the serial port and uses the keyboard and LCD screen of the mobile phone to display the blood glucose test results. That is to say, the mobile phone blood glucose meter adds the blood sugar test function on the basis of retaining the original functions of the mobile phone. The hardware of the diabetes monitoring center is composed of a server connected to an MC35 wireless communication module through a serial port. The software system is mainly responsible for completing the control of the MC35 to receive short messages and patient information management and maintenance. 2 mobile phone blood glucose meter design 2.1 system hardware design The blood glucose tester based on MSP430 single-chip microcomputer is mainly composed of enzyme electrode sensor, signal processing, single-chip data acquisition and processing, and serial communication between single-chip microcomputer and mobile phone, as shown in Figure 2. A three-electrode system is used, which is divided into a reference electrode, a counter electrode and a working electrode. The pre-signal processing uses the analog switch to control the electrode access circuit, thus providing different working states for the system. The signal processing uses an amplifier and low-pass filtering to convert the current signal of the sensor to filter high-frequency interference for subsequent circuits. Data collection provides high quality signals, blood glucose concentration data acquisition and serial data Communication, using TI's MSP430 series of microcontrollers as the main control unit. In addition, the system has a temperature compensation function, which can compensate the error of the ambient temperature on the system test results and improve the accuracy of the test results. The blood glucose test module has a volume of 3cm*1cm, which can be placed in the mobile phone case, so that the blood glucose tester and the mobile phone are integrated, which is convenient for the user to carry and detect. Figure 2 mobile phone blood glucose meter system block diagram Mackerel Fillets,Frozen Mackerel Fish,Frozen Mackerel Prices Fillet,Canned Mackerel Fillet Zhoushan City Shuangying Aquatic Products Co., Ltd.  , https://www.shuangying-aquatic.com.jpg)
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