CN203303154U - Portable monitoring terminal platform - Google Patents

Abstract

The utility model discloses a portable monitoring terminal platform, which comprises a processor, a power supply circuit, a clock circuit, a reset circuit, SDRAM, a Flash circuit, an audio interface, a CF card interface, a serial port circuit, a USB circuit, a network interface, a touch screen, and a keyboard circuit, IIC circuit, alarm circuit, power supply circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, alarm circuit Processor connection. The utility model is mainly used in medical monitoring, has multiple functions such as alarm and storage, and is convenient to use.

Description

Portable monitoring terminal platform

technical field

The utility model relates to a monitoring terminal platform, in particular to a portable monitoring terminal platform.

Background technique

The existing monitoring terminal platform has no alarm and storage functions, which is inconvenient to use.

Utility model content

The technical problem to be solved by the utility model is to provide a portable monitoring terminal platform, which is mainly used in medical monitoring, has multiple functions such as alarm and storage, and is easy to use.

The utility model solves the above-mentioned technical problems through the following technical solutions: a portable monitoring terminal platform, including a processor, a power supply circuit, a clock circuit, a reset circuit, SDRAM, a Flash circuit, an audio interface, a CF card interface, and a serial port circuit , USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, alarm circuit, power supply circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, The keyboard circuit, the IIC circuit and the alarm circuit are all connected with the processor.

Preferably, the processor is an S3C6410 ARM processor.

The positive and progressive effect of the utility model is that the portable monitoring terminal of the utility model is mainly used in medical monitoring, and has multiple functions such as alarm and storage.

Description of drawings

Fig. 1 is a functional block diagram of the portable monitoring terminal platform of the present invention.

Fig. 2 is a schematic diagram of the serial port circuit in the utility model.

FIG. 3 is a schematic diagram of the Flash circuit in the present invention.

FIG. 4 is a schematic diagram of the USB circuit in the present invention.

Fig. 5 is a schematic diagram of the audio interface in the present invention.

FIG. 6 is a schematic diagram of the reset circuit in the present invention.

Detailed ways

The preferred embodiments of the utility model are given below in conjunction with the accompanying drawings to describe the technical solution of the utility model in detail.

As shown in Figure 1, the utility model portable monitoring terminal platform comprises processor, power supply circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, alarm circuit, power supply circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, alarm circuit Processor connection. The processor can adopt S3C6410 type ARM processor. Power circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, and alarm circuit are all existing components.

The serial port circuit adopts UART (Universal Asynchronous Receiver and Transmitter, universal asynchronous transceiver), the design principle of the serial port circuit is shown in Figure 2, and the chip MAX202E is selected as the level conversion chip of the serial port circuit.

In the application of embedded system, in order to manage data reasonably and share data, the design of Flash circuit is particularly important. The portable monitoring terminal is equipped with K9G8G08U0A and the memory is 1G Bytes NAND FLASH. The chip select signal on the S3C6410 first uses CSn2. Flash circuit is mainly used to store embedded Linux kernel code, file system (including Qt application program) and monitoring data. For the convenience of different users, the NAND FLASH chip with dual chip selection architecture is supported and adopted by the monitoring terminal design, and both CSn2 and CSn3 chip selection signals can be used. Users can use NANDFLASH with 128M memory or 2GB space according to specific needs and application environment. In order to prevent conflicts, CSn3 cannot be connected to bus devices other than NANDFLASH when designing the circuit. FLASH circuit connection principle shown in Figure 3.

As shown in Figure 4, the USB circuit has the advantages of high transmission rate, easy expansion, support for plug and play and hot swap, and has been widely used. The monitoring terminal adopts USB2.0, provides USB host (host) controller and connector, and supports both device and host functions through the interface OTG in the S3C6410 chip, supports high-speed (HS, 480Mbps), full-speed (FS, 12Mbps, only use device), and low-speed (LS, 1.5Mbps, only for host) conversion. The principle of the USBHOST interface circuit is shown in Figure 5, using 4-core shielded wires, a bunch of differential wires (D+, D-) and another pair to transmit +5V DC. It is convenient for customers to use the common horizontal plug-in USB female port (type A socket); it can be connected to common devices, such as U disk, USB mobile hard disk, USB mouse, USB keyboard and other input and output devices.

The touch screen chooses a color LCD screen with a four-wire touch screen, the model is: WXCAT35-TG3#001, this module is light in weight, ultra-thin, and low in power consumption. Driving the module requires 24 data lines VD0-VD23, and the control signals VDEN, VSYNC, HSYNC, and VCLK of the S3C6410 are respectively connected to the DEN IVS HIS CLK pins of the module. Display cardiac monitoring signals on the LCD (such as electrical waveform diagram, ECG signal parameters, time, heart rate, battery power, functional interface and other information). The XR, YD, XL, and YU of this module are respectively connected to the XP (AIN7), YM (AIN4), XM (AIN6), and YP (AIN5) pins of the S3C6410 to realize the function of the touch screen. When touching the screen at the front of the LCD with a finger or a stylus, you can set system parameters and select function menus, realizing good human-computer interaction. The touch screen has the advantages of high precision, fast response, no drift, dust-proof lamp

As shown in Figure 5, the audio function of the monitoring terminal uses its own AC97 bus of the monitoring terminal processor. By connecting the WM9714 audio chip to the chip S3C6410 as a CODEC decoder chip, the functions of integrated audio output, Line in input and Mic input are realized. Audio output, MIC input and LINE IN all use a small speaker and a small microphone. The use of these interfaces is mainly designed to allow users to use the monitoring terminal more conveniently, and to alarm or prompt the applicable objects.

As shown in Figure 6, the purpose of the reset circuit is to force the design to be positioned in a known state during simulation, and the system reset module supplies the monitoring terminal ARM start signal. The monitoring terminal system reset button uses a 6*6mm tact switch, the reset chip selects MAX811, and has low power consumption, which is very suitable for handheld or portable devices. Using such a professional reset chip can ensure the stability and reliability of the monitoring terminal system. The reset circuit mainly completes power-on, power-off reset and user’s quiet reset function when the system is running. It can manually control the reset of the control system, and can also monitor the power of the system in real time.

The portable monitoring terminal of the utility model is mainly used in medical monitoring, and has multiple functions such as alarm and storage. SDRAM is a synchronous dynamic random access memory, which has the advantages of large capacity, low cost, and fast storage. It is widely used in the program running space, data, and stack areas of embedded systems.

The above embodiments are not intended to limit the present utility model, and any modification, equivalent replacement, improvement, etc. made within the scope of the present utility model all belong to the protection scope of the present utility model.

Claims (2)

1. a portable monitoring terminal platform, is characterized in that, comprises processor, power supply circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, alarm circuit, power supply circuit, clock circuit, reset circuit, SDRAM, Flash circuit, audio interface, CF card interface, serial port circuit, USB circuit, network interface, touch screen, keyboard circuit, IIC circuit, alarm circuit Processor connection. 2. The portable monitoring terminal platform according to claim 1, wherein the processor adopts a S3C6410 type ARM processor.

Images