CN205374745U - Position terminal - Google Patents

Abstract

The utility model discloses a positioning terminal, which comprises an MCU control module, the MCU control module is respectively connected with a positioning module and a communication module, and both the positioning module and the communication module are connected with an antenna; the antenna communicates with a base station, and the The base station communicates with the satellite; the MCU control module is also connected to the inertial navigation module, the storage module and the CAN bus communication module respectively; the MCU control module also communicates with the cloud server respectively. The positioning terminal is suitable for sub-meter and centimeter-level positioning requirements, and can be used in intelligent transportation, mechanical control, precision agriculture, high-precision surveying and mapping, deformation monitoring, aerospace, medical education, government agencies, public safety, enterprise management, high-precision dispatching monitoring, High-precision positioning requirements for exploration, marine, national defense and scientific research industries.

Description

a positioning terminal

technical field

The utility model relates to a terminal, in particular to a positioning terminal.

Background technique

Positioning terminal is a high-tech system that combines global satellite positioning system (GPS), geographic information technology (GIS) and wireless communication technology. There are many types of GPS satellite receivers, which are divided into geodetic type, total station type, timing type, hand-held type, and integrated type according to the model; they are divided into vehicle-mounted, ship-mounted, airborne, satellite-mounted, and bomb-mounted types according to their uses . The GPS system is a high-precision, all-weather and global radio navigation, positioning and timing multi-function system. GPS technology has developed into a multi-field, multi-mode, multi-purpose, multi-model international high-tech industry.

China's Beidou Navigation Satellite System (BeiDou Navigation Satellite System, BDS) is a global satellite navigation system developed by China itself. China's Beidou satellite navigation system is the third mature satellite navigation system after the US Global Positioning System (GPS) and the Russian GLONASS satellite navigation system (GLONASS). Beidou Satellite Navigation System (BDS), GPS of the United States, GLONASS of Russia, and GALILEO of the European Union are certified suppliers by the United Nations Satellite Navigation Commission.

The Beidou satellite navigation system consists of three parts: the space segment, the ground segment and the user segment. It can provide high-precision, high-reliability positioning, navigation, and timing services for all types of users around the world, all-weather, and has short-message communication. It has initially possessed regional navigation, positioning and timing capabilities, with a positioning accuracy of 10 meters, a speed measurement accuracy of 0.2 m/s, and a timing accuracy of 10 nanoseconds.

In addition to GPS being used for navigation, positioning and measurement, since the precise clock carried on the space satellite of the GPS system can release time and frequency information, it is based on the precise clock on the space satellite and under the monitoring of the ground monitoring station, transmits Precise time and frequency is another important application of GPS, which can be used to control precise time or frequency, and can serve many engineering experiments.

At present, the positioning terminal market is occupied by meter-level products, and the positioning accuracy of meter-level positioning products can only reach 5-10 meters. With the further improvement of market requirements for positioning accuracy, the demand for sub-meter positioning (positioning accuracy within 1 meter) and higher-precision positioning is becoming more and more urgent. Existing positioning terminals have the problems of low positioning accuracy and delay in data transmission.

Utility model content

In order to solve the shortcomings of the prior art, the utility model provides a positioning terminal. The positioning terminal is suitable for sub-meter and centimeter-level positioning requirements, and can be used in intelligent transportation, mechanical control, precision agriculture, high-precision surveying and mapping, deformation monitoring, aerospace, medical education, government agencies, public safety, enterprise management, high-precision dispatching and monitoring , Exploration, marine, national defense and scientific research industries require high-precision positioning.

The utility model adopts the following technical solutions:

A positioning terminal, comprising: an MCU control module, the MCU control module is connected to a positioning module and a communication module respectively, and both the positioning module and the communication module communicate with a base station through an antenna, and the base station communicates with a positioning satellite; The MCU control module is also connected to the inertial navigation module, the storage module and the CAN bus communication module respectively; the MCU control module also communicates with the cloud server.

The MCU control module is also connected with the display module.

The MCU control module is also connected with the serial port to USB communication module.

The storage module includes an EEPROM storage module and a TF card track storage module.

The display module is a liquid crystal display.

The beneficial effects of the utility model are:

The utility model communicates with the base station through the MCU control module to improve the anti-interference ability and positioning accuracy; the utility model communicates with the base station through the built-in communication module, and the data can be sent to the cloud server in real time, and can realize remote real-time display.

Description of drawings

Fig. 1 is a structural schematic diagram of a positioning terminal of the present invention;

Fig. 2 is a schematic diagram of the circuit structure of the MCU control module of the present utility model;

Fig. 3 is a schematic diagram of the circuit structure of the CAN bus communication module of the present invention.

Among them, 1. MCU control module; 2. Positioning module; 3. Communication module; 4. Inertial navigation module; 5. Storage module; 6. CAN bus communication module; 7. Cloud server.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Fig. 1 is a schematic diagram of the overall structure of the positioning terminal of the present utility model, and the positioning terminal is introduced in detail below in conjunction with Fig. 1:

The positioning terminal of this embodiment includes: an MCU control module 1, the MCU control module 1 is connected to the positioning module 2 and the communication module 3 respectively, and the positioning module 2 and the communication module 3 are both connected to the antenna; the antenna is connected to the base station Mutual communication, the base station and the satellite communicate with each other; the MCU control module 1 is also connected with the inertial navigation module 4, the storage module 5 and the CAN bus communication module 6; the MCU control module 1 also communicates with the cloud server 7.

Wherein, the positioning module 2 is a GNSS positioning module; the communication module 3 can be a GPRS communication module.

Further, the MCU control module 1 is also connected with the display module.

Further, the MCU control module 1 is also connected to the serial-to-USB communication module.

Further, the storage module 5 includes an EEPROM storage module and a TF card track storage module.

Furthermore, the display module is a liquid crystal display. The display module can also adopt an LED display.

The MCU control module 1 of this embodiment can be realized by using a PLC controller or an ARM series controller.

The following takes the MCU control module 1 as STM32F103RET6 as an example, as shown in Figure 2, it is the peripheral circuit of the chip STM32F103RET6, and the oscillation frequency generated by the crystal clock circuit is 8MHz.

As shown in Figure 3, the CAN bus communication module 6 takes the chip SN65HVD230 as the core, and the CANH and CANL terminals of the chip SN65HVD230 are respectively connected to the first pin and the third pin of the chip diode EPCOS_B82793, and the first pin of the chip diode EPCOS_B82793 There is also a resistor connected in parallel between the pin and the third pin; the second pin and the fourth pin of the patch diode EPCOS_B82793 are connected to the power supply.

The working principle of the positioning terminal of the present utility model is:

First, the MCU control module 1, the positioning module 2 and the communication module 3 communicate with the base station through the antenna respectively, and the base station feeds back the position information detected by the satellite received to the MCU control module 1 through the positioning module 2, and the positioning position information is displayed on the display module is implemented.

In the positioning terminal of the present invention, the MCU control module 1 is also connected with the inertial navigation module 4 for realizing the monitoring and positioning of the speed and position of the moving carrier.

The information received by the MCU control module 1 can be stored in the storage module 5. Since the storage module 5 includes an EEPROM storage module and a TF card track storage module, it can be used to store different types of data respectively.

The MCU control module 1 can also be connected with the CAN bus communication module 6 to realize anti-jamming communication between the MCU control module 1 and other modules.

The positioning information received by the MCU control module 1 can also be transmitted to the cloud server 7, and the cloud server 7 is connected with the monitoring terminal to realize remote real-time monitoring.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (5)

1. a location terminal, it is characterised in that including: MCU control module, described MCU control module is respectively connected with locating module and communication module, and described locating module is all connected with antenna with communication module；Described antenna intercoms mutually with base station, and described base station intercoms mutually with satellite；Described MCU control module is also respectively connected with inertial navigation module, memory module and CAN communication module；Described MCU control module also intercoms respectively mutually with Cloud Server.

2. a kind of location as claimed in claim 1 terminal, it is characterised in that described MCU control module is also connected with display module.

3. a kind of location as claimed in claim 1 terminal, it is characterised in that described MCU control module also turns usb communication module and is connected with serial ports.

4. a kind of location as claimed in claim 1 terminal, it is characterised in that described memory module includes EEPROM memory module and TF card track storage module.

5. a kind of location as claimed in claim 2 terminal, it is characterised in that described display module is LCDs.