CN202313347U

CN202313347U - Human body action detector based on wireless communication

Info

Publication number: CN202313347U
Application number: CN2011204464647U
Authority: CN
Inventors: 谢水清; 尹世金
Original assignee: South Central University for Nationalities
Current assignee: South Central Minzu University
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-07-11
Anticipated expiration: 2021-11-14

Abstract

The utility model provides a human body action detector based on wireless communication. The human body action detection comprises an velocity sensor, a digital-to-analogue converter, a controller, a wireless module, a data storage module, a power supply controller and a battery, wherein the velocity sensor is connected with the digital-to-analogue converter, the digital-to-analogue converter is connected with the controller, the controller is connected with the wireless module, the data storage module is connected with the controller, the battery is connected with the power supply controller, and the power supply controller supplies power to the velocity sensor, the digital-to-analogue converter, the controller, the wireless module and the data storage module. After the velocity sensor acquires action signals of a human body, the action signals are digitalized by the digital-to-analogue converter, and the digitalized signal is processed by the controller, then is stored in the data storage module and is transmitted to wireless network through the wireless module.

Description

Human action detector based on radio communication

Technical field

This utility model belongs to the wireless senser field, is specifically related to a kind ofly can gather the human action signal, has the signal data memory function, and carries out the device that data wireless sends through wireless module.

Background technology

The situation of can be the for a long time uninterrupted monitoring human motion of human action detector (actigraph) is widely used in athlete's physical exertion measurement, motor system clinical examination and research, sleep monitor.Traditional human action detector is kept at human body movement data in the equipment.After using end, with taking out in the data slave unit, carry out follow-up data analysis again.The real-time of this mode is very poor, can't handle and analyze the movable information at scene.And in practical application, the situation that need on-the-spot carry out real time data processing and analysis is commonplace.Therefore design the good and networked human action detector of mobility, can strengthen the range of application of human action detector, have bigger research and using value.

Summary of the invention

The purpose of this utility model provides a kind of human action detector based on radio communication; It not only can accomplish the long-term uninterrupted monitoring of the situation of human motion; And has a wireless data transmission function; Can the information data of human motion be real-time transmitted in the network through wireless mode, effectively solve the problem that existing equipment can not carry out real time data processing and analysis.

This utility model adopts following technical scheme: a kind of human action detector based on radio communication, and it includes: the acceleration transducer that is used to gather the human action signal; Be used for analog signal conversion is become the analog-digital converter of digital signal; Be used to control and coordinate the controller of various piece work; The wireless module that is used for wireless data transmission; Be used to preserve the data memory module of data; Be used to provide the battery and the power-supply controller of electric of equipment work.Acceleration transducer directly obtains actuating signal from human body, then this actuating signal is converted into the analog electrical signal and the output of suitable amplitude; Be transferred to analog-digital converter from the analog electrical signal of representing the human body operation information of acceleration transducer output, analog electrical signal carried out digitized processing, convert corresponding data to by analog-digital converter; Controller carries out buffer memory, processing with these data from analog-digital converter; Data after handling are kept in the data memory module; Wireless module is accomplished the transmission of data under the control of controller; Battery is that operation of entire equipment provides the energy; Power-supply controller of electric becomes the required magnitude of voltage of each module with the voltage transitions of battery, and accomplishes the work to battery charge.

The utility model has the advantages that: equipment has good mobility, interconnectivity, and the signals sampling rate is high, memory capacity is big, cost performance is high.

Description of drawings

Fig. 1 is the operation principle structure chart of this utility model.

Fig. 2 is the controller circuitry schematic diagram of this utility model one embodiment.

Fig. 3 is the power circuit principle figure of this utility model one embodiment.

Fig. 4 is the storage card circuit theory diagrams of this utility model one embodiment.

Fig. 5 is the battery charger schematic diagram of this utility model one embodiment.

Fig. 6 is the acceleration sensor circuit schematic diagram of this utility model one embodiment.

The specific embodiment

Below will combine accompanying drawing and embodiment that this utility model is elaborated, to prove absolutely the characteristic of this utility model.

Based on the wireless pulse wave detector of ZigBee, as shown in Figure 1, include acceleration transducer, analog-digital converter, controller, wireless module, data memory module, power-supply controller of electric, battery.Wherein acceleration transducer is connected with analog-digital converter; Analog-digital converter is connected with controller; Controller is connected with wireless module; Data memory module is connected with controller, and battery is connected with power-supply controller of electric, and power-supply controller of electric is acceleration transducer, analog-digital converter, controller, wireless module, data memory module power supply.Acceleration transducer collects after the actuating signal of human body, carries out digitized through analog-digital converter, and digitized signal is handled by controller, is kept in the data memory module then, and sends in the wireless network through wireless module and to go.

Referring to Fig. 2, in the present embodiment, what controller adopted is the STM32W108CB chip that ST Microelectronics produces.The kernel of this controller is 32 ARM Cortex M3 processors of high-performance, low-power consumption, and the integrated wireless communication module that meets IEEE 802.15.4 communication standard, can easily realize that ZigBee uses; Built-in 128K byte FLASH memorizer, 8K byte SRAM memorizer can be deposited the date processing of realization more complicated and the code of network function, and need not carry out the expansion of external memory storage; Integrated 6 tunnel 12 analog-digital converter can carry out the Analog signals'digital conversion easily.The

3,4 of controller STM32W108CB is the transmitting-receiving port of wireless differential signal; Through inducer L1, capacitor C4 and transformer T1 wireless signal is coupled away; Through capacitor C5～C7, inducer L2, be transferred to antenna AN0835 again, then data sent.The pin 15 of controller STM32W108CB is the power output end of 1.8V, for

1,2,5,8,10,45,46 provides the input of 1.8V power supply.The

17,44 of controller STM32W108CB is the power supply output of 1.25V, needs to connect decoupling capacitor.The

16,23,28,37 of controller STM32W108CB is the input of 3.3V power supply, needs the outside power supply that 3.3V is provided.The

47,48 of controller STM32W108CB is the input pin of agitator, connects the circuit of being made up of 24MHz crystal oscillator, capacitor C2, C3, for controller provides system clock.The

21,22 of controller STM32W108CB is connected on the battery charge controller.On the interface that the

19,20,30,31 of controller STM32W108CB is connected in the storage card circuit.The

41,42,43 of controller STM32W108CB be connected to acceleration signal output interface on.

Referring to Fig. 3, in the present embodiment, equipment adopts battery powered, uses common lithium battery, and power supply chip adopts ME6219C33, and the input voltage 2.0V～6.0V of chip, output voltage are 3.3V.Lithium battery is connected on the socket J4, then through filter capacitor C23, C26, is connected to the

1,3 of power supply chip ME6219C33; Power supply chip ME6219C33 pin 5 output 3.3V voltages, 2 filter capacitor C25 of same parallel connection, C22; The pin 4 of power supply chip ME6219C33 connects a bypass capacitor C24 for bypass output.Capacitor C11～C16 is the filter capacitor of 1.8V power supply; Capacitor C17～C19 is the 3.3V filter capacitor; Capacitor C9, C10 are the 1.25V filter capacitor.

Referring to Fig. 4, in the present embodiment, storage card uses miniSD/TF card J1, and the interface of storage card is operated under the spi bus pattern.The pin 4 of J1 connects the 3.3V power supply, for storage card provides power supply; The pin 6 of J1 connects ground; The pin 7 of J1 is connected to the pin 31 of STM32W108CB then through drawing on the resistance R 8; The pin 3 of J1 is connected to the pin 30 of STM32W108CB then through drawing on the resistance R 9; The pin 2 of J1 is connected to the pin 20 of STM32W108CB then through drawing on the resistance R 7; The pin 5 of J1 is connected to the pin 19 of STM32W108CB.

Referring to Fig. 5, in the present embodiment, the charging chip of battery adopts LM3658, and this chip volume is little, efficient is high.The power supply of charging is imported the 5V power supply from mini-USB socket CN2, and is connected on the pin 1 of chip LM3658; The pin 10 of chip LM3658 is the output of power supply, is connected to the positive pole of lithium battery; The

6,7 of chip LM3658 is the charged state holding wire, through pullup resistor R5, R6, is connected to then on the

21,22 of controller STM32W108CB; The

8,9 of chip LM3658 is through resistor R 20, the drop-down ground connection of R10.

Referring to Fig. 6, in the present embodiment, acceleration transducer U3 is the integrated chip MMA7260QT that Freescale company produces, and 3 components of acceleration that it can detect the XYZ direction convert analog electrical signal output then into.The

1,2,3,12 of acceleration transducer U3 connects the 3.3V power supply; The pin 4 of acceleration transducer U3 connects ground; The

13,14,15 of acceleration transducer U3 is 3 acceleration signal outputs, is connected respectively on the

43,42,41 of controller STM32W108CB; Capacitor C12 is a decoupling capacitor, and an end connects power supply 3.3V, and an end connects ground, and is placed on from the near position of acceleration transducer U3 pin 3 as far as possible.

Claims

1. human action detector based on radio communication is characterized in that including:

The acceleration transducer that is used for the human action signal;

Be used for analog signal conversion is become the analog-digital converter of digital signal;

Be used to control and coordinate the controller of various piece work;

The wireless module that is used for wireless data transmission;

The data memory module that is used for the storage action signal data;

Be used to provide the battery and the power-supply controller of electric of equipment work;

Acceleration transducer obtains the human action signal, converts analog electrical signal and output then into; Analog electrical signal is transferred to analog-digital converter and carries out digitized, obtains signal data; Controller is handled these data, sends through wireless module; The human action signal data also can be saved in the data memory module.

2. the human action detector based on radio communication as claimed in claim 1, it is characterized in that: power-supply controller of electric comprises the function to battery charge.