CN202892098U - Multifunctional corporeity tester - Google Patents

Abstract

The utility model discloses a multifunctional corporeity tester which comprises a controller model, a radio frequency identification device (RFID) reading integrated circuit (IC) card module, a general packet radio service (GPRS) wireless transmission module, a series data downloading module, a flash data storage module, a sensor module, a liquid crystal display module, a keyboard module, a voice noticing module and a power module supporting electric energy for a circuit. A 32-bit microprocessor of an ARM Cortex-M3 kernel based on Harvard architecture is adopted as the control core of the multifunctional corporeity tester, wherein the ARM Cortex-M3 kernel conducts parallel executions on a plurality of operations, and therefore execution speeds of application programs are improved. The GPRS wireless transmission module has the advantages of fully utilizing the existing networks, being high in resource utilization rate, always on line, high in transmission rate, and rational in expense and the like. The multifunctional corporeity tester has the obvious advantages of being low in cost, high in performance, low in power consumption, high in testing precision, long in transmission distance, simple and convenient to operate and the like.

Description

A kind of multi-functional body constitution tester

Funded Projects: Tianjin application foundation planning item general project, the calculating predictive study of the full genome range transcription factor binding site point of fungal organism, bullets: 11CYBJC26600.

Technical field

This utility model relates to a kind of adolescent physical test instrunment, relates in particular to a kind of multi-functional body constitution tester.

Background technology

China's adolescent physical health level for many years continuous slide is undisputable fact already.Student's constitution and health level more and more is subject to country, the Ministry of Education and the head of a family's attention, and present physique test instrument is all fairly simple, most of test instrunments are mechanical or what adopt is traditional 51 single-chip microcomputers, and are inaccurate such as measuring, inconvenient operation etc.And the wire transmission of RS485 bus is adopted in data transfer and preservation mostly, perhaps short range wireless transmission, in actual use trouble but also affected by environment very large not only.

Summary of the invention

This utility model utilizes advanced at present electronic technology and communication technology in order to solve above-mentioned the problems of the prior art, and a multi-functional body constitution test instrunment that integrates grip, vital capacity, height and body weight etc. is provided.

This utility model is to address this problem the technical scheme of taking to be:

Multi-functional body constitution tester of the present utility model, RFID reading and writing IC card module, GPRS wireless transport module, serial data download module, flash data memory module, sensor assembly, LCD MODULE, Keysheet module, the voice cue module that comprise controller module, is connected with controller module and the power module that electric energy is provided for circuit; Controller module is take the 32-bit microprocessor of ARM Cortex-M3 kernel as core controller; The GPRS wireless transport module adopts the SIM900A module.。

Described controller module has designed 2 kinds of clock sources, and 8MHz crystal oscillator Y101 is as the clock source of micro controller, and 32.768KHz crystal oscillator Y100 is as the clock source of RTC.

Described power module adopts two kinds of power supply modes, and a kind of is by outside 5V DC power supply, and another kind is the 4.2V lithium battery power supply.

That described sensor assembly adopts is HX711.

The 240*128 LCDs that described Liquid Crystal Module adopts T6963C to drive.

Advantage and the good effect that the utlity model has are:

This utility model is take the 32-bit microprocessor of ARM Cortex-M3 kernel as control core, the Cortex-M3 kernel is based on Harvard's framework, instruction and data respectively uses a bus, because instruction and data can read from memorizer simultaneously, so the Cortex-M3 processor to a plurality of operation executed in parallel, has been accelerated the execution speed of application program.The GPRS wireless transport module has high, online, the characteristics such as transfer rate is high, rate are reasonable all the time of existing network, resource utilization that take full advantage of.Compared with former tester, this instrument has obvious advantage, low cost, high-performance, low-power consumption, and certainty of measurement is high, long transmission distance, and simple to operation etc.

Description of drawings

Fig. 1 is the structured flowchart of multi-functional body constitution tester of the present utility model;

Fig. 2 is the circuit theory diagrams of controller module of the present utility model;

Fig. 3 is power supply state and the charging circuit figure of power module of the present utility model;

Fig. 4 is the circuit diagram of 5V power supply of the present utility model;

Fig. 5 is the circuit diagram of 3.3V power supply of the present utility model;

Fig. 6 is the circuit theory diagrams of voice cue module of the present utility model;

Fig. 7 is the circuit theory diagrams of RFID reading and writing IC card module of the present utility model;

Fig. 8 is the circuit diagram of GPRS wireless transport module SIM900A of the present utility model;

Fig. 9 is the circuit diagram of GPRS wireless transport module SIM of the present utility model;

Figure 10 is serial data download module MAX3232 level shifting circuit figure of the present utility model;

Figure 11 is the circuit theory diagrams of flash data memory module of the present utility model;

Figure 12 is the circuit theory diagrams of sensor assembly HX711 of the present utility model;

Figure 13 is the circuit theory diagrams of LCD MODULE of the present utility model.

The specific embodiment

Referring to drawings and Examples this utility model is described in detail.

Fig. 1 is the structured flowchart of multi-functional body constitution tester of the present utility model.As shown in Figure 1, multi-functional body constitution tester of the present utility model, RFID reading and writing IC card module, GPRS wireless transport module, serial data download module, flash data memory module, sensor assembly, LCD MODULE, Keysheet module, the voice cue module that comprise controller module, is connected with controller module and the power module that electric energy is provided for circuit.This instrument is take the 32-bit microprocessor of ARM Cortex-M3 kernel as control core, the Cortex-M3 kernel is based on Harvard's framework, instruction and data respectively uses a bus, because instruction and data can read from memorizer simultaneously, so the Cortex-M3 processor to a plurality of operation executed in parallel, has been accelerated the execution speed of application program.Peripheral circuit comprises 240*128 LCD MODULE, Keysheet module, voice cue module, RFID non-contact IC card module for reading and writing, data memory module, data download module, sensor assembly, power module and GPRS wireless communication module, and GPRS has high, online, the characteristics such as transfer rate is high, rate are reasonable all the time of existing network, resource utilization that take full advantage of.

Controller module adopts 32 Cortex-M3 micro controller of high performance ARM STM32F103VD, the operating frequency of 72M, the SRAM of built-in 512K byte flash flash memory and 64K byte, abundant I/O port and the peripheral hardware that is connected to two APB buses.Comprise 5 USART, 2 I2C, 3 SPI, 2 I2S, 1 USB, 1 SDIO and 1 CAN standard and advanced communication interface, also comprise 3 12 ADC, 4 general 16 bit timing devices, 2 basic intervalometers and 2 PWM intervalometers.Main control module as shown in Figure 2.Network identity among the figure shows that this pin is in the definition of native system.Want parallel filtering electric capacity between controller power source and the ground, the closer to the controller pin, effect is better.The Starting mode of controller starts for user's flash memories, and namely BOOT0 and BOOT1 are by the 100k resistance eutral grounding.Designed 2 kinds of clock sources, 8MHz crystal oscillator Y101 is as the clock source of micro controller, and 32.768KHz crystal oscillator Y100 is as the clock source of RTC.

Power module has designed two kinds of power supply modes, and a kind of is by outside 5V DC power supply, and another kind is the 4.2V lithium battery power supply.Power supply state and charging circuit are as shown in Figure 3.LTC4054 is that Linear Tech aims at the monolithic integrated chip that the charging of single-lithium-battery pond needs design.Circuit design is very succinct, and charging voltage is set in 4.2V, and charging current can be by single outer meeting resistance control, and after reaching last float charge voltage 4.2V, charging current is down to 1/10 o'clock of setting value, and LTC4054 ends charge cycle automatically; LTC4054 advances the ultralow current status of people automatically when defeated people's power interruptions, and the battery consumption electric current is less than 2uA, and source current was down to 25uA after LTC4054 advanced people's closed condition.LTC441l is the low-loss Power Path controller that Linear Tech releases, for electrical source exchange or load Sharing provide the function that is bordering on ideal diode.The running voltage of LTC441l at 2.6 V between 5.5 V.

The module that has in this instrument needs the 3.3V Power supply, and such as controller, GPRS module etc., the module that has needs the 5V Power supply, such as LCD backlight lamp, RFID antenna etc., the design of these two kinds of power supplys such as Fig. 4, shown in Figure 5.

Fig. 4 is the 5V power circuit, because this instrument can be the 4.2V lithium battery power supply, therefore the module that needs the 5V power supply is wanted, just must boost to 4.2V, the design adopts the high efficiency booster type manostat of the low reference voltage of SP7648, SP7648 is a ultralow quiescent current, the high efficiency DC-DC transducer that progressively raises, and is fit to very much the application of single lithium battery or binodal alkaline battery.R215 gets 0 ohm in the design, utilization be fixedly output function of 5V.3.3V power circuit, employing be the AME8805 power supply chip, circuit design is as shown in Figure 5.

This instrument has sound prompt function, and with user-friendly, that speech chip adopts is ISD17240, and this chip is the monolithic high-quality voice playback circuitry that Winbond releases, and this chip provides two operating mode (Du Li ﹠amp; Embedded), and customizable information operating indication audio.Chip internal includes the comprehensive integration system function of automatic gain control, the preposition expander of mike, speaker drive circuit, agitator and internal memory etc.Design circuit as shown in Figure 6.Adopt independent operating mode, this pattern has record, playing function, also has F.F., wipes, volume control, straight-through playback and the function such as reset.Power supply is 3.3V, by mike audio-frequency information is recorded in chip, and SPK+ and SPK-connect loudspeaker and point out with audio plays, and this chip can be deposited 240 seconds voice messagings.If volume is large not, can also connect current amplifier by the AUD/AUX pin, connect again loudspeaker, export, to obtain larger volume effect.

This instrument can pass through noncontact IC card read/write device, obtains tester's information, and detecting information can be write IC-card.The rfid interrogator design circuit as shown in Figure 7.The card reader chip adopts Shanghai Fudan Microelectronics Co., Ltd's design, non-contact card Card Reader chip FM1702 based on the ISO14443 standard, this chip can be supported typeA, the typeB under the 13.56MHz frequency, 15,693 three kinds of contactless communication agreements, supports the AES of MIFARE and Shanghai standard.The chip internal height is integrated analog-modulated demodulator circuit only needs a minimum peripheral circuit just can work.Minimum running voltage can reach 2.9V, supports 6 kinds of MPIs, and what the design adopted is the SPI interface, the running voltage 3.3V of chip, and aerial voltage highest order 5V, read-write card is apart from maximum 5 centimetres.

This instrument has wireless transmission function, can send to central server with test data by GPRS network, in order to monitor and management, has realized the remote transmission of data.The design adopts the SIM900A module, and it belongs to double frequency GSM/GPRS module, adopts the SMT packing forms fully, and SIM900A is only applicable to Chinese market, and its stable performance is elegant in shape, and cost performance is high.Its design circuit as shown in Figure 8, the SIM circuit is as shown in Figure 9.

This instrument design a serial data download module, he can download to the test data that is kept in the instrument in the PC by serial ports, to prevent the generation of various event of data loss.Design adopts MAX3232 to carry out level conversion, as shown in figure 10.

This instrument has extended out 2M flash, is used for storing Hanzi font library and detecting information, and with convenient inquiry, design circuit as shown in figure 11.What adopt is the W25X16 chip of Winbond company, the SPI interface.

That sensor assembly adopts is HX711, is a 24 A/D converter chips that aim at the high-precision electronic scale and design.Compare with other chip of the same type, this integrated chip comprise the needed peripheral circuits of other chip of the same type such as regulated power supply, on-chip clock oscillator, have the advantages such as integrated level height, fast response time, strong interference immunity.Reduce the complete machine cost, improved the Performance And Reliability of complete machine.The interface of this chip and rear end MCU chip and programming are very simple, and all control signals are driven by pin, need not the depositor programming to chip internal.Input selector switch can be chosen arbitrarily passage A or channel B, links to each other with its inner low-noise programmable amplifier.The programmable-gain of passage A is 128 or 64, corresponding full scale differential input signal amplitude is respectively ± 20mV or ± 40mV.Channel B then for 64 fixing gains, is used for systematic parameter and detects.The regulated power supply that provides in the chip can be directly A/D transducer in external sensor and the chip power supply is provided, need not other analog power on the system board.Clock oscillator in the chip is without any need for external device.The auto-reset function that powers on has been simplified the initialization procedure of start.Its design circuit as shown in figure 12.JP502 connects various sensor signals, and such as grip, weight, vital capacity etc., pin 11,12,15 connects processor, and R502, R503 get the voltage that different values is selected sensor.

The 240*128 liquid crystal that Liquid Crystal Module adopts T6963C to drive is in order to show test menu, tester's information, function setting, detecting information inquiry etc.Design circuit as shown in figure 13.Lcd power source and background light power supply are controlled by controller, so that in the situation of long-time start rather than usefulness, powered-down is saved electric weight.

Keyboard Designing is 4*4 totally 16 buttons, and 0-9 totally 10 numeral keys, and 6 function keys, upper and lower, cancellation, confirm, deletion and arranging, to make things convenient for user's input digit information and other operations.

This instrument is very easy to use, and voice suggestion is not only arranged, and also has the liquid crystal display prompting, to make things convenient for man-machine interaction.The specific works process is as follows:

Power on after the start, power supply indicator is lighted, if adopt lithium battery power supply, does not then need external power supply, if lithium battery and external power supply are connected on the instrument simultaneously, instrument adopts the external power supply power supply automatically, and to lithium cell charging.The charging indicator light color that reddens, after charging is full, the display lamp virescence.

After the start, at first liquid crystal display screen shows start picture, 2 seconds laggard main menus, and have the voice suggestion menu function to select, menu has 5 functions to select, the test of brush IC-card, input message test, free practice, detecting information inquiry and function setting.

The test of brush IC-card: start the RFID card-reading function, brush tester IC-card reads in tester's information, and then test has voice suggestion in the test process, and shows test data, testing time at liquid crystal display screen.After test was finished, data at first were kept among the flash of instrument, restarted RFID and write the card function, and judge whether card number is consistent with the tester, and consistent data is preserved tester's IC-card, otherwise reported to the police.Start at last the GPRS wireless transport module, with test data dispatching centre server, carry out unified management.After above-mentioned work was finished, the keypad acknowledgement key carried out next tester, tests; The keypad cancel key returns main menu.

The input message test: by keyboard input test person information, then test has voice suggestion in the test process, and shows test data, testing time at liquid crystal display screen.After test was finished, data at first were kept among the flash of instrument, restart the GPRS wireless transport module, with test data dispatching centre server, carry out unified management.After above-mentioned work was finished, the keypad acknowledgement key carried out next tester, tests; The keypad cancel key returns main menu.

Free practice: the tester freely tests, and data are not preserved, and only shows at liquid crystal display screen.

The detecting information inquiry: this function is the data that will be kept in the flash, in the liquid crystal screen display, so that inquiry.Divide accurately inquiry and whole Pagination Display to inquire about.

Function setting: mainly be to input some primary datas by keyboard, such as the device numbering of instrument, the arranging etc. of time on real-time clock date.

When instrument uses a period of time or to specific test subscriber group, after test is finished, can pass through the USART serial ports, instrument is kept at data in the flash, download in the PC, prevent loss of data.

Claims (5)

1. multi-functional body constitution tester is characterized in that: this tester comprises controller module, RFID reading and writing IC card module, GPRS wireless transport module, serial data download module, flash data memory module, sensor assembly, LCD MODULE, Keysheet module, the voice cue module that is connected with controller module and the power module that electric energy is provided for circuit; Controller module is take the 32-bit microprocessor of ARM Cortex-M3 kernel as core controller; The GPRS wireless transport module adopts the SIM900A module.

2. multi-functional body constitution tester according to claim 1, it is characterized in that: controller module has designed 2 kinds of clock sources, and 8MHz crystal oscillator Y101 is as the clock source of micro controller, and 32.768KHz crystal oscillator Y100 is as the clock source of RTC.

3. multi-functional body constitution tester according to claim 1 is characterized in that: power module adopts two kinds of power supply modes, and a kind of is by outside 5V DC power supply, and another kind is the 4.2V lithium battery power supply.

4. multi-functional body constitution tester according to claim 1 is characterized in that: that sensor assembly adopts is HX711.

5. multi-functional body constitution tester according to claim 1 is characterized in that: the 240*128 LCDs that Liquid Crystal Module adopts T6963C to drive.

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