RU2663396C2 - Device for registration of engine activity - Google Patents

Abstract

FIELD: information technology.SUBSTANCE: invention relates to means for collecting, processing and transmitting data from sensors and is intended both for autonomous recording of the motor activity of a user, and to transmit information about its motor activity to a personal computer or other external computing device in real time, with the purpose of collecting data about the movements performed by the user, the dynamic and static positions of the body that he receives, about the number and trajectory of displacements, the registration of its absolute coordinates. Device has one mobile device for detecting and transmitting data with motion capture parameters, at least one signal transceiver, wherein the measuring device includes an autonomous power source, an inertial measurement module, wherein the measuring device is made in the form of sensor blocks having wireless communication with at least one transceiver and a wire communication with the central module, the central module comprises the power supply of the entire device and a non-volatile permanent storage device.EFFECT: inventive device allows to increase the safety of the fixed data in the event of possible malfunctions during data processing by the central module.3 cl, 3 dwg

Description

The invention relates to a means of collecting, processing and transmitting data from sensors and is intended both for offline recording of a user's physical activity and for transmitting information about his physical activity to a personal computer or other external computing device in real time (on-line mode) ), in order to collect data on the movements performed by the user, the dynamic and static positions of the body, the number and the trajectory of movements, and the registration of its absolute coordinates.

A known method of tracking and displaying the user's position in space and a system for implementing the method according to patent No. 2107328, IPC C09B 19/10, publ. 03/20/1998

The system for tracking and displaying the user's position in space contains a lot of motion parameters sensors located on parts of the user's body, which are used relative angle sensors located in the immediate vicinity of the main joints between segments of the user's musculoskeletal system, or on the segments themselves, means converting the sensor signals to the desired form of their presentation, the processing unit of the measured data, the input of which is connected to the output of the means education, a display unit of the spatial position and orientation of the user associated with the processing unit of the measured data, means for determining the reference directions, located on at least one of the segments of the musculoskeletal system of the user, the demand block connected to the polling channels with motion parameters sensors and means for determining the reference directions.

In the known method, the parameters of the movement of parts of the body of the user are determined, the obtained measurement data are converted to the desired form of their presentation, and the set of converted data is processed to obtain data that determines the position and orientation of the user in space. To do this, at each of the main joints of the segments of the musculoskeletal system of the user, a means of determining at least one angle is fixed by segments adjacent to the corresponding joint. The orientation and position of the user as a whole in space is determined based on the obtained values of the angles and orientation of at least one segment on which the means for determining the reference directions are located.

A disadvantage of the known system is the low accuracy of determining the parameters of human movement and large dimensions due to the use of a relative angle of rotation of the strain gauge or fiber-optic sensor as a sensor, and as a means of determining reference directions - a local vertical sensor or gravity sensor. In addition, this design is not mobile, inconvenient to use, as it involves the presence of special equipment for tracking and displaying the position and orientation of the user.

The closest technical solution is the motion capture system according to patent No. 121947, IPC G06F 17/40, publ. November 10, 2012, which includes at least one mobile measuring device for detecting and transmitting data with captured motion parameters, at least one signal receiver connected by wireless communication channels to at least one mobile measuring device, a processing, storage unit, data visualization connected to the data receiver, while the mobile measuring device includes an autonomous power supply, a wireless sensor network module, an inertial measuring module, ny communication channels with the wireless sensor network module for calibration and wireless data processing unit, storage and visualization of data.

A disadvantage of the known system is the need for a signal receiver and a processing unit for storing and visualizing data at a certain distance from the object on which the sensors are mounted. This does not allow the use of the above system to capture the movement of a user moving in space over distances exceeding the signal range according to the IEEE 802.15.4 / ZigBee standard, that is, the device does not have an autonomous operation mode - there is no radio signal receiver.

An object of the invention is the creation of a mobile and autonomous recorder of user motor activity, providing the accumulation of a large amount of data both offline and when they are transmitted over the air to the receiver, high accuracy and the ability to capture the movement of a user moving in space over long distances, as well as fixing the user's motion parameters in absolute coordinates for the subsequent analysis of his motor activity at any movements and positions.

The problem is solved in a device for recording motor activity, including at least one mobile device for determining and transmitting data with motion capture parameters, at least one signal transceiver, the measuring device including an autonomous power source and an inertial measuring module, in which according to the invention the measuring device is made in the form of sensor blocks having wireless communication with at least one transceiver and wired communication with the central module, while the central module contains the power source of the entire device and non-volatile permanent storage device, in addition, the central module contains a module for the global navigation satellite system GNSS to determine the absolute coordinates, and the sensor unit includes an integral sensor containing an inertial and optional sensors.

In addition, in the data transmission mode over the radio channel, the frequency range 417 ... 422 MHz or 433 ... 447 MHz, which is allowed for use in industry, is used. And the operating mode controls are equipped with a light and sound indication.

The technical result is an autonomous collection of information about motor activity in the central module with its subsequent storage by a non-volatile permanent storage device of the central module, which in turn provides spatial independence with respect to a personal computer; registration of user coordinates in space; the ability to connect optional sensors to register additional parameters, such as height, humidity; the ability to transfer data to a personal computer about physical activity in real time through a radio channel module connected to the sensor unit and a radio channel transceiver connected to a personal computer.

The invention is illustrated by drawings, where in FIG. 1 shows the information network of the device, FIG. 2 - structure of the central module, in FIG. 3-structure of the sensor block, where:

1 - central module (CM)

2 - sensor unit (BS)

3 - transceiver (PPU)

4 - personal computer (PC)

5 - three-axis gyroscope

6 - three-axis accelerometer

7 - three-axis magnetometer

8 - temperature sensor

9 - auxiliary processor (VP)

10 - optional sensor (OD)

11 - integrated sensor (INT)

12 - interface module (IM)

13 - non-volatile read-only memory device (EEPROM)

14 - module global navigation satellite system (GNSS-module)

15 - autonomous power supply (IAP)

16 - microcontroller of the sensor unit (MK)

17 - control unit (BU)

18 - radio channel module (MRK)

19 - inertial sensor (IDR)

20 - interface module (IM)

21 - microcontroller control unit (MK)

22 - piezo emitter (PI)

A and B - communication lines

The device for recording motor activity contains at least one mobile device consisting of at least one sensor unit 2 for receiving and transmitting data with the parameters of motor activity associated via a wired communication line with at least one central module 1, which is a processing unit, storing data on motor activity and data on the absolute coordinates of the user for subsequent processing on a personal computer 4, to which a transceiver is connected device (e.g. radio channel adapter) 3.

In addition, the sensor unit 2 (Fig. 3) contains an integral sensor 11, which in turn includes an inertial sensor 19, an optional sensor 10, a microcontroller 16, an interface module 12, and a radio channel module 18. The inertial sensor 19 includes a three-axis gyroscope 5, a three-axis accelerometer 6, a three-axis magnetometer 7, a temperature sensor 8, and an integrated signal auxiliary processor 9 (for example, DMP Digital Motion Processor). Data from a three-axis gyroscope 5, a three-axis accelerometer 6, a three-axis magnetometer 7, a temperature sensor 8, and an optional sensor 10 are processed by an auxiliary processor 9. Data from the integrated sensor 11 via communication buses, for example SPI or 12C, is transmitted to the microcontroller 16 for subsequent processing and data transmission to the central module 1 through an interface module 20 connected to the microcontroller 16 via the UART interface. The interface module 12 of the sensor unit 2 is connected to the interface module 20 related to the central module 1, via an AB wire line, for example RS-485. Using the module of the radio channel 18, the sensor unit 2 can carry out information exchange with a personal computer 4 through the adapter of the radio channel 3.

The interface connections of the nodes of the sensor blocks can be, for example, the following:

MK ------ UART ------ IM

MK ------ SPI ------- microSD

ID ------ SPI or 12C, or UART ----- GNSS module.

The central module 1 consists of a control unit 17, a sensor unit 2 and a power supply 15, such as a battery (battery). A power supply unit 15, for example a storage battery, generates the voltage Ubatt necessary for supplying both the control unit 17 itself and for supplying the sensor unit 2. Moreover, the control unit 17 is a master of the network, the sensor units 2 are network subscribers (slave). Information exchange is carried out on communication lines A and B, for example, a bifilar pair - RS-485 communication interface. In parallel with this, there is another information network, where the sensor blocks 2 are also subscribers, and the personal computer 4 acts as the master of the network, exchanging information with the sensor blocks via the radio channel using the radio channel adapter 3 connected to the personal computer, for example, the USB interface.

The control unit 17 (Fig. 2) of the central module 1 contains a microcontroller 21 with the following components connected to it: on the UART line, an interface module 20 for exchanging information with the sensor unit 2; on line 12C - a module of the global navigation satellite system GNSS 14 for determining the absolute coordinates of the user; on the SPI line, a non-volatile read-only memory device 13, for example, FLASH microSD, for storing data received from the sensor unit 2 and the module of the global navigation satellite system GNSS 14; controls for operating modes (“Power” power on / off button, “Work / pause”, “Mode” buttons, “Work”, “Pause” LED indicators, piezo emitter (for example, BUZ)).

The device can operate both in stand-alone data recording mode and in data transmission mode via radio communication, for which each of the sensor blocks is equipped with its own radio channel module, and there is also a radio channel adapter 3 connected to a personal computer 4.

The inventive device for recording motor activity works as follows.

One or more mobile devices are attached to parts (parts) of the user's body. After the operator selects the interrogation mode of the sensors (the number of interrogated sensor units), the microcontroller 21 (Fig. 2) supplies Ubat generated by an autonomous power source 15, for example, a battery, a central module 1, to one or more sensor units 2 selected by the operator. Microcontroller 21, located in the central module 1, sequentially sends the included blocks of sensors 2 a request for their telemetric data. The sensor unit 2 using the microcontroller 16 and the interface module 20 carries out information exchange with the central module via communication lines A and B, for example, a bifilar pair - RS-485 communication interface. Using the module of the radio channel 18, the sensor unit 2 can exchange information via the radio channel with a personal computer 4 through an adapter of the radio channel 3 connected to the personal computer 4. A telemetry request is received from the central module to the interface module 12 of the sensor unit 2, where the Ubat was powered . The interface module 12 of the sensor unit 2 transmits this request to the microcontroller 16. The microcontroller 16 sends a request to the auxiliary processor 9. The auxiliary processor 9 of the inertial sensor 19, which is part of the integrated sensor 11, constantly polls the three-axis gyroscope 5, three-axis accelerometer 6, three-axis magnetometer 7 , a temperature sensor 8 and an optional sensor 10. The auxiliary processor 9, upon request from the microcontroller 16, transmits to it data from a three-axis gyroscope 5, a three-axis accelerator a meter 6, a three-axis magnetometer 7, a temperature sensor 8, and an optional sensor 10. The microcontroller 16 processes the obtained data on the user's physical activity, performs their preliminary filtering and mathematical processing, and temperature correction. The processed data from the microcontroller 16 is fed to the interface module 12 of the sensor unit 2, then transmitted via communication lines A and B to the interface module 20 of the control unit 17, which is part of the central module 1, and then to the microcontroller 21. Also transmitted to the microcontroller 21 of the central module the signal from the module of the global navigation satellite system GNSS 14. The received signals are processed by the microcontroller 21 of the control unit 17, after which the processed information is transmitted to non-volatile permanently stored device 13, for example FLASH microSD, which is stored for further processing on a personal computer.

In parallel with this, it is possible to communicate with the sensor unit 2 with a personal computer 4 via a radio channel. The personal computer 4 through the adapter connected to the radio channel 3 queries the telemetry data of the sensor unit 2 through the module of the radio channel 18.

The information data received from the sensor unit 2 via the radio channel adapter 3 is sent to a personal computer 4, where, using specialized software, it is processed, analyzed and interpreted into qualitative and quantitative characteristics of the user's physical activity.

The use of non-volatile permanent storage device for recording and storing data on the user's physical activity ensures the complete autonomy of the device when working offline.

Claims (3)

1. A device for recording motor activity, comprising at least one mobile device for detecting and transmitting data with parameters of captured motion, at least one signal transceiver, wherein the mobile device includes an autonomous power source and an inertial measuring module, characterized in that the mobile device made in the form of sensor blocks having wireless communication with at least one transceiver device and wired communication with a central module, while ENTRAL module comprises a power source the entire device and nonvolatile read only memory further comprises a central unit for determining the absolute coordinates module global navigation satellite system GNSS, and a part of the sensor unit includes an integral sensor comprising an inertial and optional sensors. 2. The device according to claim 1, characterized in that the frequency range 417 ... 422 MHz or 433 ... 447 MHz, which is allowed for use in industry, is used in the data transmission mode over the radio channel. 3. The device according to p. 1, characterized by the presence of light and sound indicators of the control modes of operation.

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