CN209878995U - Moving object posture positioning device based on narrowband Internet of things - Google Patents

Abstract

The utility model discloses a moving object attitude positioning device based on the narrowband internet of things. The device includes: an inertial sensor, a satellite positioning sensor, a pressure sensor, a controller, a narrowband IoT module and a cloud server; the inertial sensor, the satellite positioning sensor and the narrowband IoT module are all connected to the controller in two-way communication; the pressure sensor and the inertial sensor Two-way communication connection; two-way communication connection between the cloud server and the NB-IoT module. The utility model can reliably monitor the motion state of the object and save energy consumption at the same time.

Description

A posture positioning device for moving objects based on narrowband internet of things

technical field

The utility model relates to the technical field of positioning and tracking, in particular to a moving object attitude positioning device based on the narrowband Internet of Things.

Background technique

In field positioning and tracking applications, the monitored objects have different shapes and sizes, and the monitoring device is required to be as small as possible, easy to install and carry, and does not affect the living habits of animals and people. The posture monitoring and positioning tracking devices of wild animals or field workers are generally portable devices, small in size and light in weight, and powered by batteries. However, some working scenes have no sunlight and cannot use solar panels to supplement power. While recording attitude information, it also needs to work with low power consumption.

At present, the posture positioning device of moving objects usually adopts the method of continuous monitoring, that is, the position information is obtained in real time regardless of the motion state of the tracked object, which leads to high energy consumption of the positioning device, which is not conducive to long-term operation in the battery-powered scenario; and the existing The attitude positioning device of the moving object usually realizes positioning by setting GPS and attitude sensors, and its positioning accuracy needs to be improved, and its reliability is low.

Contents of the invention

Based on this, it is necessary to provide a moving object posture positioning device based on the narrowband Internet of Things, which can reliably monitor the moving state of the object while saving energy consumption.

In order to achieve the above object, the utility model provides the following scheme:

A moving object attitude positioning device based on narrowband Internet of Things, said device comprising: inertial sensors, satellite positioning sensors, pressure sensors, controllers, narrowband Internet of Things modules and cloud servers;

The inertial sensor, the satellite positioning sensor and the NB-IoT module are all connected in two-way communication with the controller; the pressure sensor is connected in two-way communication with the inertial sensor; the cloud server is connected to the NB-IoT Module two-way communication connection.

Optionally, the device further includes a battery management module;

The storage battery management module is connected in two-way communication with the controller.

Optionally, the device also includes a battery charging module;

The battery charging module is connected to the battery management module;

The battery charging module is a solar panel or a fixed power supply unit.

Optionally, the device also includes a data storage module;

The data storage module is bidirectionally connected to the controller.

Optionally, the model of the controller is STM32L443CCUx; the model of the satellite positioning sensor is MAX-M8Q; the model of the inertial sensor is MPU-9250; the model of the pressure sensor is BMP280.

Optionally, the narrowband IoT module is an LPWAN module.

Optionally, the inertial sensor includes an acceleration sensor, an angular velocity sensor and a magnetometer.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model proposes a moving object attitude positioning device based on the narrowband Internet of Things. The device includes: an inertial sensor, a satellite positioning sensor, a pressure sensor, a controller, a narrowband IoT module and a cloud server; the inertial sensor, the satellite positioning sensor and the narrowband IoT module are all connected to the controller in two-way communication; the pressure sensor and the inertial sensor Two-way communication connection; two-way communication connection between the cloud server and the NB-IoT module. In the utility model, the inertial sensor will collect the attitude data of the moving object, and the pressure sensor will obtain the air pressure data of the environment where the moving object is located. When the moving object is in a static state, the satellite positioning sensor is in an open state. When the moving object is in a non-stationary state, The satellite positioning sensor is in the closed state, which can reduce energy consumption compared with the prior art using continuous monitoring; in the utility model, a pressure sensor is set to obtain air pressure data, and the air pressure data and the position information collected by the satellite positioning sensor jointly realize the High positioning and high precision can realize reliable monitoring of the movement state of objects; setting up narrowband IoT modules for wireless communication can further reduce energy consumption.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the invention, those skilled in the art can also obtain other drawings according to these drawings without paying creative efforts.

Fig. 1 is a schematic structural diagram of a moving object posture positioning device based on narrowband Internet of Things according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In order to make the above purpose, features and advantages of the utility model more obvious and understandable, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of a moving object posture positioning device based on narrowband Internet of Things according to an embodiment of the present invention.

Referring to FIG. 1 , the NB-IoT-based moving object posture positioning device of the embodiment includes: a controller 1 , a satellite positioning sensor 2 , an inertial sensor 3 , a pressure sensor 4 , a NB-IoT module 5 and a cloud server 6 . The inertial sensor 3, the satellite positioning sensor 2 and the narrowband Internet of Things module 5 are all connected to the controller 1 for two-way communication; the pressure sensor 4 is connected to the inertial sensor 3 for two-way communication; the cloud server 6 is connected to the narrowband Internet of Things module 5 in two-way communication.

The inertial sensor 3 includes an acceleration sensor, an angular velocity sensor and a magnetometer, and is used to transmit the attitude data of the collected moving object to the controller 1; the attitude data includes three-axis acceleration, three-axis angular velocity and three-axis geomagnetism The acceleration sensor collects the three-axis acceleration of the moving object, the angular velocity sensor collects the three-axis angular velocity of the moving object, and the magnetometer collects the three-axis geomagnetic quantity of the moving object; Air pressure data is transmitted to the controller 1 through the inertial sensor 3; the controller 1 is used to control the opening and closing of the satellite positioning sensor 2, and obtain the position information of the moving object collected by the satellite positioning sensor 2 , and the attitude data, the air pressure data and the position information are sent to the cloud server 6 through the narrowband Internet of Things module 5; the cloud server 6 sends configuration information, and configures each sensor through the controller 1 Parameters, such as configuring the sampling rate for individual sensors. The controller 1 only needs to select an existing controller capable of controlling the turning on and off of the satellite positioning sensor 2 , such as the controller STM32L443CCUx.

In this embodiment, the device further includes a battery management module 7; the battery management module 7 is bidirectionally connected to the controller 1 for powering the entire device. The storage battery management module 7 is reserved with a charging interface, which can be connected to a battery charging module. The battery charging module can be a solar battery panel, which can be used to realize online charging; it can also be a fixed power supply device, which can use a fixed power supply to realize offline charging, and can be used in various occasions.

In this embodiment, the device further includes a data storage module; the data storage module is connected to the controller 1 in two-way communication, and is used to store and package the data sent by the controller 1, and store the packaged data The data is sent to the cloud server 6 regularly. The storage module includes Flash memory and EEPROM memory.

In this embodiment, the model of the controller 1 is STM32L443CCUx; the model of the satellite positioning sensor 2 is MAX-M8Q; the model of the inertial sensor 3 is MPU-9250; the model of the pressure sensor 4 is BMP280; The narrowband Internet of Things module 5 is an LPWAN module, and the model of the LPWAN module is BC95. The LPWAN module has the characteristics of low power consumption and high performance. The LPWAN module is used as the narrowband Internet of Things module in the posture positioning device, which can reduce the power consumption of the entire device; The model of the Flash memory is W25Q128; the model of the EEPROM memory is AT24C64.

The controller STM32L443CCUx is connected to the satellite positioning sensor MAX-M8Q through the universal asynchronous transceiver serial port USART1, connected to the inertial sensor MPU-9250 through the serial bus I2C1, connected to the LPWAN module BC95 through the universal asynchronous transceiver serial port USART2, and connected to the Flash through the serial peripheral interface SPI2 The memory W25Q128 is connected to the EEPROM memory AT24C64 through the serial bus I2C3.

The inertial sensor MPU-9250 is connected to the SCK and SDA of the pressure sensor BMP280 through AUX_CL and AUX_DA respectively, and is set as the master to read the BMP280 data to obtain the air pressure data of the environment where the moving object is located; the SCL and SDA of the MPU-9250 and the STM32L443CCUx I2C1_SCL is connected to I2C1_SDA, and serves as a controlled terminal to provide 10-degree-of-freedom sensing data such as three-axis acceleration, three-axis angular velocity, three-axis geomagnetism, and air pressure to the controller STM32L443CCUx; MPU-9250 has three built-in sensors that require power consumption when working independently Different, the working current of the acceleration sensor is 450uA, the working current of the angle sensor is 3.2mA, the working current of the magnetometer is 280uA, and the working current of the three sensors at the same time is 3.5mA. The working current of the pressure sensor BMP280 general mode is 2.7uA when the sampling rate is 1Hz. In order to save power consumption to the greatest extent, by default, only the acceleration sensor data is collected to determine whether the object is moving at a constant speed or stationary. At this time, the working current is about 0.5mA; When the working current is about 4mA.

The TXD and RXD of the satellite positioning sensor MAX-M8 are respectively connected to the USART1_RX and USART1_TX of the STM32L443CCUx processor to provide satellite positioning data, and the general input and output pin PA11 of the STM32L443CCUx is connected to the RESET_N of the MAX-M8 for reset control. The cold start time of MAX-M8 for the first positioning is 26s, the hot start time during use is 1s, and the average current is 26mA. By default, MAX-M8 is in the energy-saving mode with 1Hz operation, and its working current is 5.4mA. When the object is detected to be stationary, the MAX-M8 is turned off to save energy consumption. When the object is detected to be moving, it is set to the continuous mode with an average current of 23mA.

The moving object posture positioning device based on the narrowband Internet of Things of the present embodiment is provided with an inertial sensor and a pressure sensor, and when the moving object is in a static state, the satellite positioning sensor is in an open state, and when the moving object is in a non-stationary state, the satellite positioning sensor In the closed state, compared with the existing technology, the continuous monitoring method can reduce energy consumption; the pressure sensor is set to obtain the air pressure data, and the air pressure data and the position information collected by the satellite positioning sensor are used to realize the positioning together, and the positioning accuracy is high, which can realize Reliable monitoring of the moving state of the object; sending various sensor data to the remote server through the LPWAN module, realizing remote monitoring of the state and position of the object, and further reducing power consumption; the battery management module reserves a charging interface, which can be connected to an external solar battery The board can also be charged off-line through a fixed power supply unit to meet the remote posture monitoring and behavior analysis in various occasions. The utility model can be used for object position monitoring, animal tracking and behavior analysis, is low-cost low-power consumption wide area network monitoring equipment, and solves the problem of object tracking accuracy and power consumption coordination.

In this paper, specific examples have been used to illustrate the principle and implementation of the present utility model, and the description of the above embodiments is only used to help understand the method of the present utility model and its core idea; meanwhile, for those of ordinary skill in the art, according to Thoughts of the present utility model all have changes in specific implementation and scope of application. To sum up, the contents of this specification should not be understood as limiting the utility model.

Claims (7)

1. The utility model provides a moving object gesture positioner based on narrowband thing networking which characterized in that, the device includes: the system comprises an inertial sensor, a satellite positioning sensor, a pressure sensor, a controller, a narrow-band Internet of things module and a cloud server;

the inertial sensor, the satellite positioning sensor and the narrow-band Internet of things module are in bidirectional communication connection with the controller; the pressure sensor is in bidirectional communication connection with the inertial sensor; the cloud server is in bidirectional communication connection with the narrow-band Internet of things module.

2. The narrowband internet of things-based moving object posture positioning device of claim 1, further comprising a storage battery management module;

the storage battery management module is in bidirectional communication connection with the controller.

3. The narrow-band internet of things-based moving object attitude determination device of claim 2, further comprising a battery charging module;

the battery charging module is connected with the storage battery management module;

the battery charging module is a solar panel or a fixed power supply device.

4. The narrowband internet of things-based moving object posture positioning device of claim 1, further comprising a data storage module;

the data storage module is in bidirectional communication connection with the controller.

5. The narrowband internet of things-based moving object attitude positioning device of claim 1, wherein the controller is of the model STM32L443 CCUx; the model of the satellite positioning sensor is MAX-M8Q; the type of the inertial sensor is MPU-9250; the model of the pressure sensor is BMP 280.

6. The narrow-band internet of things-based moving object attitude locating device according to claim 1, wherein the narrow-band internet of things module is an LPWAN module.

7. The narrowband internet of things-based moving object attitude determination device of claim 1, wherein the inertial sensors comprise an acceleration sensor, an angular velocity sensor, and a magnetometer.