CN103047997B - Based on the 3D acceleration of bluetooth and angular velocity Real-time Collection with send sensing module - Google Patents
Based on the 3D acceleration of bluetooth and angular velocity Real-time Collection with send sensing module Download PDFInfo
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- CN103047997B CN103047997B CN201210575969.2A CN201210575969A CN103047997B CN 103047997 B CN103047997 B CN 103047997B CN 201210575969 A CN201210575969 A CN 201210575969A CN 103047997 B CN103047997 B CN 103047997B
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Abstract
The sensing module sent based on 3D acceleration and the angular velocity Real-time Collection of bluetooth belongs to sensing data transmission technique field, it is characterized in that, be one piece of PCB being integrated with 3D acceleration transducer, gyroscope, bluetooth module, Atmega328P processor, serial communication chip, charge controller and lithium battery control chip, be in Atmega328P processor carries out parameter modification state to bluetooth module when serial ports USB is connected with bluetooth module; When serial ports USB is connected with the chipset MCU of Atmega328P processor, be in system amendment state, the outside serial ports USB that passes through is to Atmega328P processor input amendment code; In running order when bluetooth module is connected with Atmega328P processor, Atmega328P microprocessor outwards sends sensing data by bluetooth module.Sensor of the present invention integrated, improves practicality.
Description
Technical field
The invention belongs to electronic information field.A kind of based on Bluetooth technology, can Real-time Collection and the wireless sensing module transmitting 3D acceleration and angular velocity data.
Background technology
Current existing 3D acceleration and angular-rate sensor and gyroscope, can gather the 3D acceleration in object of which movement process and angular velocity data in real time, accurately.Although these sensor assemblies are very little, due to stitch and the line of its complexity, make Integrated predict model difficulty, reduce practicality.In addition, the mobile terminal devices such as present smart mobile phone, notebook are all integrated with bluetooth communication module, market need a energy can gather 3D acceleration and the angular velocity data of object movement, and send the sensing module of institute's image data by bluetooth.
For the problems referred to above, the invention provides a kind of based on Bluetooth technology, the wireless sensing module of energy Real-time Collection and transmission 3D acceleration and angular velocity data; Meanwhile, developer can adopt Arduino development environment for this module coding, arranges the sampling rate of sensor, Bluetooth data transfer speed, and by download program to module to adapt to different application needs.
Summary of the invention
For size and the stitch feature of 3D acceleration and angular-rate sensor, bluetooth module and Atmega328P microprocessor, the present invention devises arrangement and the wiring method of acp chip group; Design corresponding PCB with integrated 3D acceleration transducer, gyroscope, bluetooth module, Atmega328P processor, FT232RQ serial communication chip, LP2992 lithium battery control chip and MAX1555 charge controller.The present invention can not only the 3D acceleration of Real-time Collection object movement and angular velocity data, and sends data by bluetooth.Meanwhile, developer can adopt Arduino development environment for this module coding, arranges the sample frequency of sensor, the speed of Bluetooth data transfer, and by USB cable by download program to this module to adapt to the needs of different application.Modular design layout as shown in Figure 1.
The present invention is one piece of PCB being integrated with ADXL3453D acceleration transducer, ITG-3205 gyroscope, BC417143 bluetooth module, Atmega328P processor, FT232RQ serial communication chip, LP2992 lithium cell charging control chip and MAX1555 charger, wherein:
ADXL3453D acceleration transducer, is connected with the acceleration signal input end of described Atmega328P processor by pin SDA with SCL,
ITG-3205 gyroscope, is connected with the angular velocity signal input end of described Atmega328P processor by pin SDA with SCL,
BC417143 bluetooth module, FT232RQ serial port chip is connected by the leaded molded and described Atmega328P processor of wire jumper, wherein:
Described wire jumper is leaded molded, be provided with: the TX_BT pin represented by mark " 1 ", with the RX_BT pin that mark " 2 " represents, with the TX_MCU pin that mark " 3 " represents, with the RX_MCU pin that mark " 4 " represents, with the TX_USB pin that mark " 5 " represents, the RX_USB pin represented by mark " 6 ", wherein:
When pin TX_MCU is connected with pin TX_USB, when pin RX_MCU is connected with pin RX_USB, described sensing module is in System Programming state, by the serial ports USB of described FT232QR serial communication chip to described Atmega328P processor programming program code, or the program code execution in described Atmega328P processor is monitored
When pin TX_MCU is connected with pin TX_BT, when pin RX_MCU is connected with pin RX_BT, described sensing module is in normal operating conditions, described Atmega328P processor passes to described BC417143 bluetooth module from the data collected by described ADXL3453D acceleration transducer, ITG-3205 gyroscope, the sensing data obtained by described BC417143 bluetooth module wireless transmission
When pin TX_BT is connected with pin RX_USB, when pin RX_BT is connected with pin TX_USB, described sensing module is in bluetooth parameters amendment state, and described Atmega328P processor is checked by the serial ports USB of described FT232RQ serial communication chip or revised the running parameter of bluetooth
Described Atmega328P processor is connected with 3V ~ 5V lithium battery in the external world by serial ports USB, carry out powering or charging, power supply process is controlled by the described MAX1555 charger that is connected in series successively and LQ2992 lithium cell charging control chip when powering, wherein, described serial ports USB is that described FT232RQ serial port communication chip provides.
The invention has the advantages that: the disposable module being integrated with the multiple difference in functionalitys such as sensor, processor, power supply, serial communication, radio communication, integrated level be high, volume is little, lightweight, low in energy consumption, thus use very convenient; Meanwhile, open circuit design makes programming and code revision on sheet become very convenient, not only greatly strengthen the availability of circuit, also makes the function of system become powerful.
Accompanying drawing explanation
Fig. 1 each modular design layout of the present invention.
The leaded molded schematic diagram of wire jumper in Fig. 2 the present invention.
Embodiment
The present invention adopts following technical scheme:
As shown in Figure 1, the ADXL345 acceleration transducer that the present invention adopts AnalogDevices company to produce gathers the 3D acceleration of object movement, and this sensor measurement scope is ± 6g, and induction precision is 4mg/LSB; The ITG-3205 gyroscope of InvenSense is adopted to gather the 3D angular velocity of object movement, the induction precision of this sensor is 14.375LSB/ (°/s), range ability is ± 2000 °/s, and this two classes sensor has the features such as measuring accuracy is high, volume is little, low in energy consumption; Adopt the Atmega328P of Atmel company as CPU (central processing unit) MCU, the brilliant battle array dominant frequency of this chip is 16MHz; Select the BC417143 bluetooth module of CSR company, this module work in Class2 pattern, maximum transmission distance 10m, message transmission rate can be 1200 ~ 1382400Bits/S; FT232RQ serial communication chip is adopted to provide USB interface and serial communication support for this module; Adopt LP2992 lithium battery control chip and MAX1555 charge controller, make module both by 3 ~ 5V lithium battery power supply, also can be powered by usb circuit, and be lithium cell charging by USB interface.
As shown in Figure 1,3D acceleration transducer (pin SDA with SCL) is connected with Atmega328P, gyroscope (pin SDA with SCL) is connected with Atmega328P, and then realizes the Real-time Collection of Atmega328P processor to 3D acceleration and angular velocity data.Atmega328P processor is connected by wire jumper pin with FT232 serial port chip with bluetooth module.By arranging wire jumper pin, module of the present invention is made to be in bluetooth amendment state, System Programming state and normal operating conditions respectively.
As shown in Figure 2, wire jumper is leaded molded has 6 pins.No. 1 is connected TX and the RX pin of bluetooth module BT respectively with No. 2 pins, and No. 3 are connected TX and the RX pin of singlechip chip group MCU respectively with No. 4 pins, and No. 5 are connected TX and the RX pin of serial ports USB respectively with No. 6 pins.When No. 3 pins be connected with No. 5 pins, No. 4 pins be connected with No. 6 pins time, singlechip chip group MCU is connected with serial ports USB, now carries out the programming of single-chip microcomputer internal program by serial ports, also can be monitored the ruuning situation of single-chip microcomputer internal program by serial ports.When No. 3 pins be connected with No. 1 pin, No. 4 pins be connected with No. 2 pins time, singlechip chip group MCU is connected with bluetooth module BT, now single-chip microcomputer can by from sensor collection to real time data send bluetooth module to, by bluetooth module, data are carried out wireless transmission.When No. 1 pin be connected with No. 6 pins, No. 2 pins be connected with No. 5 pins time, bluetooth module BT is connected with serial ports USB, now by serial ports, order line operation is carried out to bluetooth, with running parameters such as the Transmission bit rates of the duty or change bluetooth module that detect bluetooth module.
Below in conjunction with embodiment, the present invention is described further.
The present invention has three kinds of states, and be respectively bluetooth amendment state, System Programming state and normal operating conditions, under different conditions, the method for attachment of wire jumper pin is different.
When the present invention is in bluetooth amendment state, serial ports USB is connected with bluetooth BT, now can be modified to bluetooth parameters by serial ports and check.Concrete operations mode is: be connected with computing machine by serial ports USB usage data line, by computing machine, order line write serial ports, thus check or change bluetooth parameters.
When the present invention is in System Programming state, serial ports USB is connected with singlechip chip group MCU, now by serial ports to single-chip microcomputer programming program code, also can monitor program code execution in single-chip microcomputer.Concrete operations mode is: be connected with computing machine by serial ports USB usage data line, by the kit that computing machine is installed, single-chip microcomputer is entered in the program code programming after compiling, or monitors the running status of single-chip microcomputer Program by the monitoring window that kit carries.
When the present invention is in normal condition, bluetooth BT is connected with singlechip chip group MCU, and now single-chip microcomputer can send the data from sensor collection to bluetooth module, and packet wireless transmission then can be gone out by bluetooth.Specific works mode is: gathered object of which movement data by 3D acceleration transducer and gyroscope two sensors, data after collection are given single-chip microcomputer and are carried out processing and pack, the packet handled well is given bluetooth module with character string forms by single-chip microcomputer, Packet Generation is gone out according to relative set by bluetooth module, receiving equipment to receive after packet by software parses, can obtain related data.Wherein, receiving equipment is the smart machine being provided with Bluetooth receptions module, can be mobile phone, computing machine etc.
Claims (1)
1. based on the sensing module that 3D acceleration and the angular velocity Real-time Collection of bluetooth send, it is characterized in that, one piece of PCB being integrated with ADXL3453D acceleration transducer, ITG-3205 gyroscope, BC417143 bluetooth module, Atmega328P processor, FT232RQ serial communication chip, LP2992 lithium cell charging control chip and MAX1555 charger, wherein:
ADXL3453D acceleration transducer, is connected with the acceleration signal input end of described Atmega328P processor by pin SDA with SCL,
ITG-3205 gyroscope, is connected with the angular velocity signal input end of described Atmega328P processor by pin SDA with SCL,
BC417143 bluetooth module, FT232RQ serial communication chip is connected by the leaded molded and described Atmega328P processor of wire jumper, wherein:
Described wire jumper is leaded molded, be provided with: the TX_BT pin represented by mark " 1 ", with the RX_BT pin that mark " 2 " represents, with the TX_MCU pin that mark " 3 " represents, with the RX_MCU pin that mark " 4 " represents, with the TX_USB pin that mark " 5 " represents, the RX_USB pin represented by mark " 6 ", wherein:
When pin TX_MCU is connected with pin TX_USB, when pin RX_MCU is connected with pin RX_USB, described sensing module is in System Programming state, by the serial ports USB of described FT232QR serial communication chip to described Atmega328P processor programming program code, or the program code execution in described Atmega328P processor is monitored
When pin TX_MCU is connected with pin TX_BT, when pin RX_MCU is connected with pin RX_BT, described sensing module is in normal operating conditions, described Atmega328P processor passes to described BC417143 bluetooth module from the data collected by described ADXL3453D acceleration transducer, ITG3205 gyroscope, the sensing data obtained by described BC417143 bluetooth module wireless transmission
When pin TX_BT is connected with pin RX_USB, when pin RX_BT is connected with pin TX_USB, described sensing module is in bluetooth parameters amendment state, and described Atmega328P processor is checked by the serial ports USB of described FT232RQ serial communication chip or revised the running parameter of bluetooth
Described Atmega328P processor is connected with 3V ~ 5V lithium battery in the external world by serial ports USB, carry out powering or charging, power supply process is controlled by the described MAX1555 charger that is connected in series successively and LQ2992 lithium cell charging control chip when powering, wherein, described serial ports USB is that described FT232RQ serial communication chip provides.
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| CN104333915A (en) * | 2014-10-30 | 2015-02-04 | 浙江大学 | Wireless sensor network node based on Arduino |
| CN109467000B (en) * | 2019-01-21 | 2020-07-21 | 福州鑫奥特纳科技有限公司 | Escalator synchronous detection method based on elevator transportation quality tester |
| CN110206539A (en) * | 2019-04-19 | 2019-09-06 | 山东科技大学 | A kind of extra-deep hole drilling intelligent water level monitoring device |
| CN116026303A (en) * | 2023-03-29 | 2023-04-28 | 航天星云(北京)科技有限公司 | Optical fiber gyro circuit board, debugging method, optical fiber gyro and inertial navigation system |
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| CN2593489Y (en) * | 2002-11-26 | 2003-12-17 | 李阳 | Multifunctional digital information terminal based on blue tooth technology |
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Application publication date: 20130417 Assignee: Kang Ming Technology (Beijing) Co., Ltd. Assignor: Beijing University of Technology Contract record no.: 2016990000173 Denomination of invention: Sensing module for collecting and transmitting 3D acceleration speed and angular speed in real time based on Bluetooth techniques Granted publication date: 20160120 License type: Common License Record date: 20160503 |
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Application publication date: 20130417 Assignee: Beijing science and Technology Co., Ltd. des mines Assignor: Beijing University of Technology Contract record no.: 2017990000384 Denomination of invention: Sensing module for collecting and transmitting 3D acceleration speed and angular speed in real time based on Bluetooth techniques Granted publication date: 20160120 License type: Common License Record date: 20170925 |
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