CN213210485U

CN213210485U - Positioning device

Info

Publication number: CN213210485U
Application number: CN202021212499.XU
Authority: CN
Inventors: 刘道煌; 胡明德; 郑香叶
Original assignee: Kingstar Electrical And Intelligent Engineering Technology Co ltd Of Shenzhen
Current assignee: Kingstar Electrical And Intelligent Engineering Technology Co ltd Of Shenzhen
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-05-14
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a positioning device, include: the Beidou positioning module and the gyroscope are respectively in data connection with the master control MCU. The gyroscope is used for acquiring data such as acceleration, angular acceleration and magnetic declination, the Beidou positioning module is used for acquiring data such as longitude and latitude and speed, and the motion inflection point of the equipment can be accurately acquired, so that the motion track of the equipment is accurately acquired. By adopting the positioning device provided by the embodiment, the motion track of the equipment can be accurately acquired in real time, and the equipment can be accurately positioned.

Description

Positioning device

Technical Field

The utility model relates to a location technical field especially relates to a positioner.

Background

In a non-signal network coverage area, such as a remote area, and also such as a special unit which prohibits internet access, remote real-time position monitoring of people, vehicles and the like is required, and the remote real-time position monitoring can be realized through a data transmission mode of Beidou short messages (low frequency and low bandwidth).

At present, real-time positioning is mainly realized by a method for acquiring longitude and latitude, and the accuracy of an acquired motion track is improved by a method for increasing the acquisition frequency.

However, under the communication condition of low frequency and low bandwidth, the accurate real-time acquisition of the motion trajectory cannot be realized by increasing the acquisition frequency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a positioning device, include: the Beidou positioning module and the gyroscope are respectively in data connection with the master control MCU.

Preferably, the positioning device further comprises an SP3232 chip, the Beidou positioning module is in data connection with the SP3232 chip through an RS232 interface, and the SP3232 chip is in data connection with the master control MCU through a serial port.

Preferably, the gyroscope is in data connection with the main control MCU through a serial port.

Preferably, the positioning device further comprises a short-range wireless communication module, and the short-range wireless communication module is in data connection with the main control MCU.

Preferably, the short-range wireless communication module is a 433 wireless communication module.

Preferably, the positioning device further comprises a bluetooth communication module, and the bluetooth communication module is in data connection with the master control MCU.

Preferably, the positioning device further comprises a temperature and humidity sensor, and the temperature and humidity sensor is in data connection with the master control MCU.

Preferably, the positioning device further comprises an SD card, and the SD card is in data connection with the master MCU.

Drawings

Fig. 1 is a block diagram schematically illustrating the structure of the positioning device according to the present invention;

fig. 2 is a circuit diagram of the main control MCU of the present invention;

fig. 3 is a circuit diagram of the gyroscope of the present invention;

figure 4 is the utility model discloses a big dipper orientation module's interface circuit diagram.

In the figure, the meaning of each symbol is as follows:

1 master control MCU, 2 big dipper orientation module, 3 gyroscopes, 4SP3232 chips, 5 short distance wireless communication modules, 6 bluetooth communication module, 7 temperature and humidity sensors, 8SD cards.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1, the present embodiment provides a positioning apparatus, including: the Beidou positioning module 2 and the gyroscope 3 are respectively in data connection with the master control MCU 1.

The circuit of the master control MCU is shown in fig. 2, the circuit of the gyroscope is shown in fig. 3, and the interface circuit of the Beidou positioning module is shown in fig. 4.

The working principle of the positioning device is as follows:

in the use, this positioner can install on the motion equipment, for example install on the car, when the car motion, can gather its movement track's data to data transmission to the GIS platform that will gather.

The gyroscope is used for acquiring acceleration, angular acceleration and magnetic declination data of the sports equipment and sending the data to the main control MCU, the Beidou positioning module is used for acquiring longitude and latitude and speed data of the sports equipment and sending the data to the main control MCU, the main control MCU is used for processing the received data and then transmitting the processed data to the Beidou positioning module, and the Beidou positioning module is used for sending the data to the data receiver through the Beidou satellite so as to obtain an acquired equipment motion track on the GIS platform.

The acceleration, the angular acceleration, the declination, the speed and the like of the motion equipment at the inflection point of the motion trail are bound to change. In the embodiment, the gyroscope is used for acquiring data such as acceleration, angular acceleration and magnetic declination, the Beidou positioning module is used for acquiring data such as longitude, latitude and speed, and the motion inflection point of the equipment can be accurately acquired, so that the motion track of the equipment is accurately acquired.

Generally, the communication bandwidth and the communication frequency of the Beidou positioning module are 78.5 bytes/minute. Get rid of other environmental data, the big dipper orientation module can upload 6 positioning data every minute, gathers 5 data every 10 seconds. If the main control MCU obtains a group of data most approximate to the motion inflection point of the equipment from the 5 groups of data in the data processing process, the obtained 6 groups of data most approximate to the inflection point in one minute are uploaded, and then the accurate motion track can be obtained on the GIS platform.

Therefore, the positioning device provided by the embodiment can accurately acquire the motion track of the equipment in real time, and realize accurate positioning of the equipment.

In this embodiment, the positioning device further comprises an SP3232 chip 4, the big dipper positioning module 2 is in data connection with the SP3232 chip 4 through an RS232 interface, and the SP3232 chip 4 is in data connection with the main control MCU 1 through a serial port.

The Beidou positioning module supports an RS232 communication protocol, and can perform protocol conversion through an SP3232 chip and then perform data transmission with the MCU. Therefore, in this embodiment, adopt above-mentioned structure to realize the communication between big dipper orientation module and the master control MCU.

In this embodiment, the gyroscope 3 is in data connection with the main control MCU 1 through a serial port.

The gyroscope is provided with a serial port and an IIC communication interface, but because the main control MCU realizes the IIC in a non-hardware way through software, real-time attitude data cannot be received in time in a hardware interrupt way. Therefore, in this embodiment, in order to obtain the real-time data collected by the gyroscope, a serial port is used for communication.

In this embodiment, the positioning device further includes a short-range wireless communication module 5, and the short-range wireless communication module 5 is in data connection with the main control MCU 1.

The short-distance wireless communication module can be used for receiving the secret key in a short distance and sending the secret key to the main control MCU, and the secret key can be timely and accurately received in a serial port interruption mode in the embodiment due to the fact that the requirement for the accuracy of the secret key is high.

In this embodiment, the short-range wireless communication module 5 is a 433 wireless communication module.

433 wireless communication module possesses higher anti-interference function, still supports power setting, data broadcasting function, can set up suitable transmitting and receiving power according to the place condition, guarantees that equipment both can stable reception, and data are difficult for revealing again.

In this embodiment, the positioning device further includes a bluetooth communication module 6, and the bluetooth communication module 6 is in data connection with the main control MCU 1.

The bluetooth communication module in this example can be used for communicating with mobile devices such as mobile phones. For example, a user can send required data to a mobile phone through a bluetooth communication module by setting, and the bluetooth communication function is a communication function which is possessed by the current mobile phone.

In this embodiment, the positioning device further includes a temperature and humidity sensor 7, and the temperature and humidity sensor 7 is in data connection with the main control MCU 1.

Temperature and humidity sensor can be used for gathering humiture data in this example, gathers environmental information at equipment operation in-process to reach the data receiver with it.

And the temperature and humidity sensor can be in data connection with the main control MCU through the IIC. The IIC (Inter-Integrated Circuit bus) is a serial communication bus. In the field of low-end digital communication application, the IIC communication protocol is suitable for communication between short-distance low-speed chips.

In this embodiment, the positioning device further includes an SD card 8, and the SD card 8 is in data connection with the main control MCU 1.

The SD card can be used for recording all data (once every two seconds) collected in the operation process of the equipment, when the equipment returns to the library again, the data in the SD card can be uploaded to the server side through the short-distance communication module, and the data uploaded through the Beidou positioning module are integrated, so that the accuracy of the historical track is further improved.

And the SD card can be in data connection with the master control MCU through the SPI. The SPI (Serial Peripheral Interface) is a high-speed, full-duplex, synchronous communication bus, and occupies only four wires on the pins of the chip, saving space on the layout of the PCB, providing convenience, and having the characteristics of simplicity and easy use. In the application field of low-end digital communication, the SPI communication protocol is suitable for communication between short-distance low-speed chips

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A positioning device, comprising: the Beidou positioning module and the gyroscope are respectively in data connection with the master control MCU.

2. The positioning device of claim 1, wherein the positioning device further comprises an SP3232 chip, the Beidou positioning module is in data connection with the SP3232 chip through an RS232 interface, and the SP3232 chip is in data connection with the main control MCU through a serial port.

3. The pointing device of claim 1, wherein the gyroscope is in data connection with the master MCU via a serial port.

4. The pointing device of claim 1, further comprising a short-range wireless communication module in data connection with the master MCU.

5. The positioning apparatus of claim 4, wherein the short-range wireless communication module is a 433 wireless communication module.

6. The positioning device of claim 1, further comprising a bluetooth communication module in data connection with the master MCU.

7. The positioning device according to claim 1, further comprising a temperature and humidity sensor, wherein the temperature and humidity sensor is in data connection with the main control MCU.

8. The positioning device of claim 1, further comprising an SD card in data connection with the master MCU.