Beidou No.3 positioning module detection equipment

Abstract

The utility model belongs to the technical field of avionics, and relates to Beidou No.3 positioning module detection equipment, which comprises an antenna assembly and a detector host, the detector host adopts a reinforced computer and is used for providing a power supply, a signal interface and man-machine interaction for the whole system; a Beidou command communication module and a Beidou forwarding module are arranged in the reinforced computer, and the reinforced computer is connected with a host computer module of the reinforced computer through an RS232 interface. The main computer module receives and transmits related commands through an RS232 interface, controls the Beidou command communication module and the Beidou forwarding module to work, obtains RNSS positioning information and RDSS short message information of the Beidou command module, and achieves signal gain adjustment of the Beidou forwarding module. The antenna assembly is used for transceiving data.

Description

Technical Field

[0001] This utility model belongs to the field of avionics technology and relates to a testing device for a Beidou-3 positioning module. Background Technology

[0002] With the completion and application of the BeiDou-3 system, numerous military and civilian platforms have been equipped with BeiDou-3 positioning and navigation equipment. This includes RNSS positioning, RDSS positioning, and short message communication functions. As more and more BeiDou-3 positioning and navigation equipment is installed, higher demands are being placed on field testing and support capabilities. How to quickly, efficiently, and conveniently complete uninterrupted testing and support at the installation site and throughout the entire lifecycle of the BeiDou equipment, ensuring its continued effectiveness, has become an urgent problem to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a testing device for the BeiDou-3 positioning module, thereby solving the testing problem of the BeiDou-3 positioning module.

[0004] The technical solution is as follows:

[0005] A testing device for a BeiDou-3 positioning module includes: an antenna assembly and a testing instrument main unit;

[0006] The main unit of the detector uses a ruggedized computer to provide power, signal interfaces, and human-machine interaction for the entire system;

[0007] The ruggedized computer has a built-in BeiDou command and communication module and a BeiDou relay module, which are connected to the main computer module of the ruggedized computer through an RS232 interface. The main computer module sends and receives relevant commands through the RS232 interface, controls the operation of the BeiDou command and communication module and the BeiDou relay module, obtains the RNSS positioning information and RDSS short message information of the BeiDou command module, and realizes the signal gain adjustment of the BeiDou relay module.

[0008] The antenna assembly is used for transmitting and receiving data.

[0009] Furthermore, the antenna components include: a high-gain wide-range BeiDou antenna, a power amplifier, an antenna multiplexer, an S-type low-noise amplifier, and a B1-type low-noise amplifier. The antenna is used to perform preprocessing tasks such as BeiDou signal transmission and reception, signal amplification, and filtering.

[0010] Furthermore, the antenna assembly includes an outdoor antenna and an indoor antenna. For outdoor use, simply place the outdoor antenna in an open, unobstructed location and connect it to the main unit of the testing instrument via a cable. For indoor use, the outdoor antenna must be placed in an open, unobstructed location, and the indoor antenna must be placed indoors at a distance of at least 2 meters from the onboard product, connected to the main unit of the testing instrument via a cable.

[0011] Furthermore, the antenna assembly is mechanically fixed to the surface of the object via a flange.

[0012] Furthermore, a high-magnetic steel is installed at the bottom of the antenna for attaching it to the roof of the vehicle.

[0013] Furthermore, the main computer module is used to control the operation of the Beidou command and communication module and the Beidou relay module, and to process the navigation signals of BD-3B1C, B1A, B3I, and B3A frequency points under the Beidou RNSS system and the signals of BD-3L frequency points Lf0, Lf1, Lf2, Lf3, and Lf4, and S frequency points S1 I / Q, S2C, and S2A under the RDSS system, so as to realize the continuous real-time navigation, positioning, and speed measurement, as well as monitoring and command, message communication, and location reporting functions of the BD-3 system.

[0014] The beneficial effects of this utility model are:

[0015] This paper presents a design for a BeiDou-3 positioning module testing device, providing a miniaturized, portable, and easy-to-use design method for a BeiDou-3 module positioning and short message communication field testing device. The main advantages are as follows:

[0016] a) The equipment boasts advantages such as miniaturization, portability, and ease of deployment. When used in the field, simply erect the BeiDou antenna in an open area and connect it to the main unit of the testing instrument via a data transmission cable. No complex setup is required, and short-duration tests do not necessitate a power supply; the main unit's internal battery provides sufficient power, significantly improving field testing efficiency.

[0017] b) This device can be used to test devices with BeiDou-3 short message communication function.

[0018] c) The equipment is low in cost and highly adaptable to various environments, and can meet the product testing needs in a variety of environments. All testing work can be completed by a single person. Attached Figure Description

[0019] To more clearly illustrate the specific implementation scheme of this utility model, the following will describe the specific drawings of the scheme.

[0020] Figure 1 This is a schematic diagram of a BeiDou-3 positioning module testing device. Detailed Implementation

[0021] This section describes embodiments of the present invention and is used to explain and illustrate the technical solutions of the present invention.

[0022] A testing device for BeiDou-3 positioning modules consists of a testing instrument main unit, antenna, accessories, and packaging box.

[0023] The main unit of the detector uses a ruggedized computer to provide power, signal interfaces, and human-machine interaction functions for the entire system. The ruggedized computer has a built-in BeiDou command and communication module and a BeiDou relay module, which are connected to the main computer module via an RS232 interface. The computer module sends and receives relevant commands through the RS232 interface to control the operation of the BeiDou command and communication module and the BeiDou relay module, acquire RNSS positioning information and RDSS short message information from the BeiDou command module, and perform functions such as signal gain adjustment of the BeiDou relay module.

[0024] The antenna mainly consists of six components: a high-gain, wide-area BeiDou antenna, a power amplifier, an antenna multiplexer, an S-type low-noise amplifier, and a B1-type low-noise amplifier. Eight high-magnetic steel magnets are mounted at the bottom of the antenna, providing extremely strong adhesion; it can be directly attached to a vehicle roof or mechanically fixed to an object surface via a flange. The antenna is used for BeiDou signal transmission and reception, signal amplification, filtering, and other preprocessing tasks, and consists of one outdoor antenna and one indoor antenna.

[0025] Accessories include antenna bracket, power cord, etc.

[0026] The packaging box is a portable trolley case, which contains the main unit of the detector, antenna, and accessories, making it easy to transport, carry, and store the equipment.

[0027] The system consists of a main unit, accessories, and packaging. The main unit provides power, signal interfaces, and human-machine interface functions for the entire system. The main computer module within the main unit controls the BeiDou command and communication module and the BeiDou relay module, processing navigation signals at BD-3B1C, B1A, B3I, and B3A frequencies under the BeiDou RNSS system, and signals at BD-3L frequencies (Lf0, Lf1, Lf2, Lf3, Lf4) and S frequencies (S1I / Q, S2C, S2A) under the RDSS system. This enables continuous real-time navigation, positioning, and speed measurement of the BD-3 system, as well as monitoring, command, message communication, and location reporting.

[0028] When testing the BeiDou positioning module of an airborne product, the product needs to be placed at a location with known latitude and longitude. If the environment where the product is located allows for direct satellite search (e.g., in an open outdoor area), simply place the outdoor antenna of the testing instrument in an open, unobstructed location and connect it to the main unit of the testing instrument via a cable. After the BeiDou positioning module of the airborne equipment sends a positioning short message, which is processed and transmitted by the satellite, the testing instrument receives it through the antenna. It then amplifies, filters, and fuses the received signal and transmits the processed signal to the BeiDou command and communication module. The main unit of the testing instrument reads the data interface of the BeiDou command and communication module in real time, obtains the data area information of the BeiDou command and communication module, parses the received short message to obtain the latitude and longitude information in the airborne product's short message, and compares it with the latitude and longitude of the product's placement location to check whether the BeiDou module's positioning and short message functions are normal.

[0029] If the environment where the airborne product is located does not allow for direct satellite search (e.g., indoors), the outdoor antenna of the testing instrument should be placed in an open, unobstructed outdoor location, and the indoor antenna should be placed indoors at a distance of more than 2 meters from the airborne product, connected to the testing instrument's main unit via cable. When the airborne product sends a BeiDou short message, the indoor antenna receives the BeiDou signal sent by the airborne product, forwards it through the BeiDou repeater module in the testing instrument, and transmits it to the BeiDou satellite via the outdoor antenna. The signal processed by the satellite is then received and processed by the outdoor antenna before being transmitted to the BeiDou command and communication module, thus enabling the testing of the airborne product's BeiDou module.

Claims

1. A testing device for a BeiDou-3 positioning module, characterized in that: The detection equipment includes: an antenna assembly and a main unit of the detection instrument; The main unit of the detector uses a ruggedized computer to provide power, signal interfaces, and human-machine interaction for the entire system; The ruggedized computer has a built-in BeiDou command and communication module and a BeiDou relay module, which are connected to the main computer module of the ruggedized computer through an RS232 interface. The main computer module sends and receives relevant commands through the RS232 interface, controls the operation of the BeiDou command and communication module and the BeiDou relay module, obtains the RNSS positioning information and RDSS short message information of the BeiDou command module, and realizes the signal gain adjustment of the BeiDou relay module. The antenna assembly is used for transmitting and receiving data.

2. The detection device according to claim 1, characterized in that: The antenna components include: a high-gain wide-range BeiDou antenna, a power amplifier, an antenna multiplexer, an S-type low-noise amplifier, and a B1-type low-noise amplifier.

3. The detection device according to claim 2, characterized in that: The antenna assembly includes an outdoor antenna and an indoor antenna.

4. The detection device according to claim 3, characterized in that: The antenna assembly is mechanically fixed to the surface of the object via a flange.

5. The detection device according to claim 4, characterized in that: The antenna also has a high-magnetic magnet at the bottom for attaching to the roof of the vehicle.

6. The detection device according to claim 5, characterized in that: The main computer module is used to control the operation of the Beidou command and communication module and the Beidou relay module. It processes the navigation signals of BD-3B1C, B1A, B3I, and B3A frequency points under the Beidou RNSS system and the signals of BD-3L frequency points Lf0, Lf1, Lf2, Lf3, and Lf4, and S frequency points S1 I / Q, S2C, and S2A under the RDSS system. It realizes the continuous real-time navigation, positioning, and speed measurement, as well as monitoring and command, message communication, and location reporting functions of the BD-3 system.

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