CN218958914U

CN218958914U - Multichannel parameter loading circuit of ground radio station

Info

Publication number: CN218958914U
Application number: CN202320516494.3U
Authority: CN
Inventors: 史玉宾; 李振兴; 陆欣; 刘继鹏; 王旭阳; 郭智博; 陈贺; 张占磊
Original assignee: China North Communication Technology Co ltd
Current assignee: China North Communication Technology Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-05-02
Anticipated expiration: 2033-03-17

Abstract

The utility model provides a multichannel parameter loading circuit of a ground radio station, which comprises an MCU circuit, a switch selection circuit, a network port switching circuit and a power supply circuit, wherein the switch selection circuit and the network port switching circuit are respectively connected with the MCU circuit, and the power supply circuit is respectively connected with the MCU circuit, the switch selection circuit and the network port switching circuit to supply power to each module. The utility model receives the parameter loading instruction and data sent by the networking center through the circuit, analyzes and frames the data, converts the data into a LAN interface or an RS422 interface of a corresponding channel according to different IDs of the radio stations, loads the parameters of the radio stations, and achieves the aim of loading remote parameters of the voice radio stations.

Description

Multichannel parameter loading circuit of ground radio station

Technical Field

The utility model belongs to the technical field of electronic communication, and relates to a multichannel parameter loading circuit of a ground radio station.

Background

The radio stations equipped in the voice ground station networking center cannot realize the on-line remote loading of working parameters because the related communication controllers are not equipped in the early design planning, and user maintenance personnel are required to use the parameter loader to perform the on-site working parameter injection, so that unnecessary workload is added to the user maintenance personnel. Although the communication controller has stronger function, the voice ground station networking center directly adds the communication controller to realize remote working parameter loading, so that the input cost is high and the cost-effective ratio is low.

Disclosure of Invention

Therefore, the present utility model is directed to a terrestrial radio multichannel parameter loading circuit for implementing remote parameter loading for a voice radio.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a multichannel parameter loading circuit of a ground radio station, which comprises an MCU circuit, a switch selection circuit, a network port switching circuit and a power supply circuit, wherein the switch selection circuit and the network port switching circuit are respectively connected with the MCU circuit, and the power supply circuit is respectively connected with the MCU circuit, the switch selection circuit and the network port switching circuit to supply power to each module.

Preferably, the switch selection circuit comprises a first 8-to-1 switch and a second 8-to-1 switch, and the first 8-to-1 switch and the second 8-to-1 switch are respectively connected with the 8-way RS422 interface.

Preferably, the network interface switching circuit comprises an EEPROM chip and three cascaded switching chips, wherein the switching chips are respectively connected with the EEPROM chip, and the EEPROM chip is connected with the MCU circuit.

Preferably, the power supply circuit inputs +5v voltage, and outputs +3.3v, +1.8v, +1.1v, +2.5v voltage through the DC/DC module.

The beneficial effects of the utility model are as follows:

the utility model is mainly applied to remote control of the voice ground station radio station, and the circuit is used for receiving the parameter loading instruction and data sent by the networking center, analyzing and framing the data, converting the data into a LAN interface or an RS422 interface of a corresponding channel according to different IDs of the radio station, and loading the parameters of the radio station, thereby realizing the purpose of loading the remote parameters of the voice radio station. The utility model is interconnected with the radio stations through the serial port or the network port, and is accessed into the networking center through the IP network (the network port) to load the remote parameters of the voice radio stations, and can support 8 radio stations to load the parameters simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic block diagram of a ground station multichannel parameter loading circuit according to the present utility model.

Fig. 2 is a circuit diagram of an MCU of a ground radio station multichannel parameter loading circuit according to the present utility model.

Fig. 3 is a circuit diagram of a switch selection circuit of a ground station multichannel parameter loading circuit according to the present utility model.

Fig. 4 is a network port switching circuit diagram of a ground radio station multichannel parameter loading circuit of the utility model.

Fig. 5 is a power circuit diagram of a ground station multichannel parameter loading circuit according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in figure 1, the multichannel parameter loading circuit of the ground radio station comprises an MCU circuit, a switch selection circuit, a network port switching circuit and a power supply circuit, wherein the switch selection circuit and the network port switching circuit are respectively connected with the MCU circuit, and the power supply circuit is respectively connected with the MCU circuit, the switch selection circuit and the network port switching circuit to supply power to each module.

As shown in fig. 2, the MCU circuit of the embodiment selects a singlechip with the model GD32F207, integrates a Cortex-M4 processing core inside, and has a main frequency of 168MHz. The external interfaces of the chip are very rich, the network ports and the serial ports required by the terminal are all provided, meanwhile, each interface is required to be provided with a relevant indicator lamp, and the control function of the indicator lamp is conveniently realized by rich GPIO resources.

As shown in fig. 3, the switch selection circuit includes a first 8-1 switch and a second 8-1 switch, where the first 8-1 switch and the second 8-1 switch are respectively connected with an 8-path RS422 interface. The switch selection circuit is designed to realize the logic of UART two-way 2 wires and 2 8-1 through 2 8-1 circuits. Finally, the requirements of the device on the outer 8 RS422 interfaces can be met after the level conversion.

The utility model has 8 RS422 interfaces, so that the MCU is required to provide 8 UART interfaces to directly meet the application requirement. Considering the practical application scene, only one of 8 external control interfaces can be used at the same time, so that the MCU only needs 1 UART interface, and the requirement can be met through the design of a switch circuit. The 1 UART interface is expanded into 8 UART through a switch, and the 8 UART is subjected to level matching with an external radio station control interface through a circuit from TTL to RS 422.

As shown in fig. 4, the network port switching circuit needs to provide a total of 9 network access ports, 8 external control stations, and 1 external connection to the networking center. The network port switching circuit provides a total of 9 network access ports, 8 pairs of external connections to the radio station and 1 pair of external connections to the voice networking center. The circuit is realized by cascading 3 switching chips, and each cascading chip independently supports 5 hundred meganetwork ports. Each network exchange chip adopts a method of configuring registers by using an externally-hung EEPROM chip to realize an exchange mode.

As shown in figure 5, the power supply circuit of the utility model mainly supplies power to the digital circuit, and the MCU with low power consumption is selected as a core processing unit in the design, so that the power supply mainly adopts a DC/DC module design according to the required voltage. The power supply design circuit is mainly used for supplying power to the digital circuit, inputs +5V voltage, outputs +3.3V, +1.8V, +1.1V and +2.5V voltage through the DC/DC module, and has multiple paths of power supply and good stability.

The working process of the utility model is as follows:

firstly, the radio station ID numbers are automatically read, the connection relation between 8 channels and the radio station is confirmed, and the channels are bound. After the networking center issues a remote parameter loading instruction of a certain ID numbered radio station, the networking center issues the loading instruction and related parameter data content to a parameter loading circuit, and the parameter loading circuit re-frames according to a control protocol of a communication controller and then issues the parameter loading instruction to the radio station of a related channel to realize remote loading of parameters. After successful loading, the radio station feeds back the parameter loading state and result to the parameter loading circuit, and the parameter loading circuit feeds back the loading log, loading state and result to the networking center.

The utility model receives the parameter loading instruction and data sent by the voice networking center through the circuit WAN interface, analyzes and frames the data, converts the data into the LAN interface or the RS422 interface of the corresponding channel according to different IDs of the radio stations to load the parameters of the voice radio stations, and achieves the purpose of loading the remote parameters of the voice radio stations.

Specific embodiments are given above, but the utility model is not limited to the described embodiments. The basic idea of the utility model is that the above basic scheme, it is not necessary for a person skilled in the art to design various modified models, formulas, parameters according to the teaching of the utility model to take creative effort. Variations, modifications, substitutions and alterations are also possible in the embodiments without departing from the principles and spirit of the present utility model.

Claims

1. The utility model provides a ground radio station multichannel parameter loading circuit which characterized in that: the power supply circuit is respectively connected with the MCU circuit, the switch selection circuit and the network port switching circuit to supply power for each module.

2. The ground station multi-channel parameter loading circuit of claim 1, wherein: the switch selection circuit comprises a first 8-to-1 switch and a second 8-to-1 switch, and the first 8-to-1 switch and the second 8-to-1 switch are respectively connected with an 8-way RS422 interface.

3. The ground station multi-channel parameter loading circuit of claim 1, wherein: the network port switching circuit comprises an EEPROM chip and three cascaded switching chips, wherein the switching chips are respectively connected with the EEPROM chip, and the EEPROM chip is connected with the MCU circuit.

4. The ground station multi-channel parameter loading circuit of claim 1, wherein: the power supply circuit inputs +5V voltage and outputs +3.3V, +1.8V, +1.1V and +2.5V voltage through the DC/DC module.