CN209858742U - GNSS high-precision positioning device - Google Patents

Abstract

The embodiment of the utility model discloses GNSS high accuracy positioner, including MTK nuclear core plate, GNSS high accuracy location integrated circuit board, MCU, 4Pin mouth collection box, 6Pin mouth collection box, location mushroom head antenna, directional mushroom head antenna, wherein, MCU and MTK nuclear core plate, GNSS high accuracy location integrated circuit board and 4Pin mouth collection box electricity are connected, location mushroom head antenna, directional mushroom head antenna and GNSS high accuracy location integrated circuit board electricity are connected, 6Pin mouth collection box is connected with MTK nuclear core plate electricity, MTK nuclear core plate is MTK8735 nuclear core plate. The utility model discloses can be applicable to the mobile station, the reference station of each version, reduce the human cost and the financial cost of all links, promote the stability of system.

Description

GNSS high-precision positioning device

Technical Field

The utility model relates to a high accuracy positioning equipment technical field especially relates to a GNSS high accuracy positioner.

Background

In principle, the GNSS high-precision positioning product needs the reference station and the rover station to be matched together to realize high-precision positioning, and the functions of the GNSS high-precision positioning product and the rover station are different, but the requirements of the GNSS high-precision positioning product and the rover station are exactly the same, for example, the GNSS high-precision positioning product and the rover station need to be accessed to a network or a radio station, a high-precision positioning board card needs to be used, power is supplied, and a GNSS antenna needs to be connected.

The defects and shortcomings of the prior art are as follows:

(1) the existing solution is one set of hardware for the base station and one set of hardware for the mobile station, so that the serious waste of research and development force is caused, and the maintenance cost is improved.

(2) If the reference station is a hardware system and the rover station is another hardware system in a traditional mode, materials, designs, suppliers, development documents, data and the like are two parts, manpower and material resources required to be paid are two parts, and instability is doubled.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve lies in, provides a GNSS high accuracy positioner to the messenger can be used for the high accuracy location of reference station and mobile station.

In order to solve the technical problem, the embodiment of the utility model provides a GNSS high accuracy positioner, including MTK nuclear core plate, GNSS high accuracy location integrated circuit board, still include MCU, 4Pin mouth collection box, 6Pin mouth collection box, location mushroom head antenna, directional mushroom head antenna, wherein, MCU and MTK nuclear core plate, GNSS high accuracy location integrated circuit board and 4Pin mouth collection box electricity are connected, location mushroom head antenna, directional mushroom head antenna is connected with GNSS high accuracy location integrated circuit board electricity, 6Pin mouth collection box is connected with MTK nuclear core plate electricity, MTK nuclear core plate is MTK8735 nuclear core plate.

Further, the power supply circuit converts a 12V vehicle-mounted power supply into a 5V power supply and a 3.3V power supply to supply power to the positioning device.

Further, the MCU adopts an STM32F407VG model chip.

Further, the intelligent terminal also comprises a TNC interface and a WIFI interface which are electrically connected with the MCU.

Furthermore, the MCU is electrically connected with the GNSS high-precision positioning board card through a GNSS interface circuit, and the GNSS interface circuit comprises a U35 interface circuit and a U10 interface circuit.

The utility model has the advantages that: (1) the unification is realized, and the method can be applied to the mobile stations of various versions and the reference stations of various versions; (2) the cost is reduced, two hardware schemes of the mobile station and the reference station are simplified into one hardware scheme, and related personnel such as research, development, test, production, after sales, supply chain and the like only need to learn and train 1 system, so that the labor cost and financial cost of all links are reduced; (3) simple structure, easy maintenance, system stability is high.

Drawings

Fig. 1 is a schematic structural diagram of a GNSS high-precision positioning apparatus according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of an MTK8735 core board according to an embodiment of the present invention.

Fig. 3 is a circuit diagram of a communication module according to an embodiment of the present invention.

Fig. 4 is a circuit diagram of the MCU according to the embodiment of the present invention.

Fig. 5 is a circuit diagram of a GNSS interface circuit according to an embodiment of the present invention.

Fig. 6 is a circuit diagram of a power supply circuit according to an embodiment of the present invention.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

In the embodiment of the present invention, if there is directional indication (such as upper, lower, left, right, front, and rear … …) only for explaining the relative position relationship between the components and the motion situation under a certain posture (as shown in the drawing), if the certain posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the first, second, etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1, a GNSS high-precision positioning apparatus according to an embodiment of the present invention includes an MTK core board, an MCU, a GNSS high-precision positioning board, a 4 Pin-port collection box, a 6 Pin-port collection box, a positioning mushroom head antenna, and a directional mushroom head antenna.

MCU is connected with MTK nuclear core plate, GNSS high accuracy location integrated circuit board and 4Pin mouth collection box electricity, and location mushroom head antenna, directional mushroom head antenna are connected with GNSS high accuracy location integrated circuit board electricity, and 6Pin mouth collection box is connected with MTK nuclear core plate electricity. The MTK core board is an MTK8735 core board, a circuit diagram of the MTK8735 core board is shown in fig. 2, and the MTK8735 core board is controlled by an MTK8735 processor. Preferably, the GNSS high-precision positioning apparatus further includes a communication module integrated on the MTK core board for connecting to a network, and the circuit diagram is shown in fig. 3. The embodiment of the utility model provides an adopt location mushroom head antenna and the external mode that has the source antenna of directional mushroom head antenna, when the signal is unusual, the user can go to the problem of investigation signal channel with the universal meter very conveniently. The 4Pin port acquisition box can adopt a 4Pin port acquisition box of a Source Start/fast Sharper company; the 6Pin port acquisition box can adopt a 6Pin port acquisition box of a road test king. The 4Pin port acquisition box and the 6Pin port acquisition box are connected with the automobile through an OBD interface to supply power and communicate.

In an embodiment, the MCU is electrically connected to the GNSS high-precision positioning board via a GNSS interface circuit, where the GNSS interface circuit includes a U35 interface circuit and a U10 interface circuit, and the circuit diagram is shown in fig. 5. The GNSS high-precision positioning board card can adopt a UB482L board. The GNSS interface circuit is convenient for being compatible with GNSS cards of various types and manufacturers, such as UB362L and UB482L communicated with a core satellite, an L235 of great thought, an FB662L of a femto-longitude and latitude, a 617D card of novatai and other mainstream GNSS cards. No matter which type and which manufacturer's integrated circuit board is selected for use by the GNSS high accuracy location integrated circuit board, two kinds of serial port communication interfaces and the reset pin of U35 interface circuit and U10 interface circuit can both connect compatibly.

As an implementation mode, the GNSS high-precision positioning device further comprises a power circuit for converting a 12V vehicle-mounted power supply into a 5V power supply and a 3.3V power supply to supply power to the positioning device, and the circuit diagram of the power circuit is shown in FIG. 6.

As an implementation mode, the MCU adopts an STM32F407VG model chip, and the circuit diagram is shown in FIG. 4.

As an implementation manner, the GNSS high-precision positioning apparatus further includes a TNC interface and a WIFI interface electrically connected to the MCU. Reserving the TNC interface and the WIFI interface may save cost. Since the continuous work is usually 7 x 24h, the average is about 450 bytes per second, and the expenses are not small if the whole year is counted up; in addition, a reserved WIFI interface can be used for surfing the Internet in a WIFI mode, the speed is guaranteed, and the WIFI interface and the communication module are in double-network double backup, so that the stability is improved.

The utility model discloses a theory of operation does: when the GNSS high-precision positioning device is used for a mobile station/a reference station, the GNSS high-precision positioning device continuously uploads coordinate information of the GNSS high-precision positioning device and continuously provides differential data; the GNSS high-precision positioning device collects positioning satellite signals including satellite signals of GPS, Glonass, Galileo and Beidou four major systems from a positioning mushroom head antenna and a directional mushroom head antenna through a GNSS high-precision positioning board card, and then a rover station/a reference station are resolved by combining differential data (the position of the reference station is fixed and known, and the position of the rover station is changed and unknown due to interference of an atmospheric ionosphere and the like, or a scrambling code specially added by the positioning system, if the differential reference station is not arranged, the positioned position information is floating and is extremely inaccurate, so that centimeter-level high-precision positioning based on the satellite system must depend on the differential reference station).

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a GNSS high accuracy positioner, nuclear core plate, GNSS high accuracy location integrated circuit board including the MTK, a serial communication port, still include MCU, 4Pin mouth gathers the box, 6Pin mouth gathers the box, location mushroom head antenna, directional mushroom head antenna, wherein, MCU and MTK nuclear core plate, GNSS high accuracy location integrated circuit board and 4Pin mouth are gathered the box electricity and are connected, location mushroom head antenna, directional mushroom head antenna is connected with GNSS high accuracy location integrated circuit board electricity, 6Pin mouth is gathered the box and is connected with MTK nuclear core plate electricity, MTK nuclear core plate is MTK8735 nuclear core plate.

2. The GNSS high accuracy positioning apparatus of claim 1 further comprising a power circuit that converts a 12V onboard power supply to 5V and 3.3V power supplies to power the positioning apparatus.

3. The GNSS high accuracy positioning apparatus of claim 1 wherein the MCU employs a model STM32F407VG chip.

4. The GNSS high-precision positioning apparatus of claim 1 further comprising a TNC interface and a WIFI interface electrically connected to the MCU.

5. The GNSS high-precision positioning apparatus of claim 1, wherein the MCU is electrically connected to the GNSS high-precision positioning board via a GNSS interface circuit, and the GNSS interface circuit comprises a U35 interface circuit and a U10 interface circuit.