STM32-based automatic control system and method for broadcast transmitter

Patent metadata

Field	Value
Publication number	US-11531313-B2
Application number	US-202117381747-A
Country	US
Kind code	B2
Filing date	Jul 21, 2021
Priority date	Nov 6, 2020
Publication date	Dec 20, 2022
Grant date	Dec 20, 2022

Abstract

The present disclosure provides an STM32-based automatic control system for a broadcast transmitter, including an STM32 microcontroller, a host computer, a drive unit, a touch screen unit, a local network server unit, an image acquisition unit and a sampling unit, wherein the STM32 microcontroller is connected to the host computer. An output interface of the STM32 microcontroller is connected to the drive unit, wherein the touch screen unit is configured to display acquired information that is processed, and receive a control instruction of a touch operation. The local network server unit is configured to achieve remote network display of transmitter information and remote network control, the image acquisition unit is configured to timely acquire an image in a cabinet of the transmitter such that a maintainer can conduct remote observation, and the sampling unit is configured to control the drive unit to achieve automatic control of the transmitter.

First claim

What is claimed is:

1. An STM32-based automatic control system for a broadcast transmitter, comprising an STM32 microcontroller;
a host computer, configured to send an instruction to the STM32 microcontroller;
a drive unit, configured to drive the transmitter to execute the instruction sent by the STM32 microcontroller;
a sampling unit, comprising digital signal acquisition circuits, configured to acquire running state information and/or fault information of the transmitter; and analog signal acquisition circuits, configured to acquire information of an incident power, a power amplifier voltage and/or a power amplifier current of the transmitter;
an image acquisition unit, comprising several cameras, configured to acquire an image of a key position in the transmitter;
a touch screen unit, configured to display the information and/or send an instruction to the STM32 microcontroller;
a storage unit, wherein the storage unit stores a control parameter for inquisition of the host computer, and when the system is power off, the storage unit can ensure that the parameter will not be lost; and
a local network server unit, configured to achieve communication between the STM32 microcontroller and a remote access client through an Internet;
wherein, the host computer, the touch screen unit and the remote access client can send instruction information to the STM32 microcontroller, such as information of high-power power on, medium-power power on, low-power power on, power off, power increase, power reduction, power amplifier off, reset, voltage increase, voltage reduction and/or timely power on/power off;
when receiving the instruction information, the STM32 microcontroller analyzes the instruction information, acquires running state information, fault information, and information of the incident power, the power amplifier voltage and the power amplifier current of the transmitter through the sampling unit, conducts logic judgment based on the instruction information and sampling information, and outputs the information to the drive unit such that the transmitter executes a specified operation when conditions permit;
when not receiving the instruction information, the STM32 microcontroller continues to acquire the sampling information, and controls the drive unit to adjust each component of the transmitter to a corresponding working state according to the stored instruction information;
when determining that the transmitter works unstably, the STM32 microcontroller adjusts the incident power and/or the power amplifier voltage according to a result of the logic judgment, and executes fault reset and/or restart if the problem is not solved; and if still determining that the transmitter is in an insoluble fault state after reset and restart, the STM32 controller controls the transmitter to conduct power off and alarm.

2. The system according to claim 1 , wherein the STM32 microcontroller can display the state information, the fault information, the incident power, the power amplifier voltage and/or the power amplifier current of the transmitter on the touch screen unit, the host computer and/or the remote access client in real time.

3. The system according to claim 1 , wherein the image acquisition unit comprises several cameras, each of which shoots a key part of the transmitter to obtain image information, and in which the image information is transmitted to the remote access client through the local network server unit.

4. The system according to claim 1 , wherein the local network server unit comprises an STM32F103ZET6 chip, a network router and an intranet penetration device, the STM32F103ZET6 chip being connected to the STM32 microcontroller through a controller area network (CAN) bus and further connected to the network router, wherein the intranet penetration device is connected to the Internet through the network router, and in which the remote access client can be connected to the local network server unit through the Internet.

5. The system according to claim 4 , wherein the network router distributes a fixed IP address for a local server, and equipment in a same local area network can interact with the transmitter through the IP address, wherein the intranet penetration device can map the IP address of the local server in the intranet into a domain name of a public network; and the remote access client can interact with the transmitter through the domain name.

6. A method for controlling a transmitter by the system according to claim 1 , the method comprising the following steps:
receiving, by the STM32 microcontroller in real time, the sampling information acquired by the sampling unit;
conducting, by the STM32 microcontroller when instruction information is received, logic judgment based on the instruction information and the sampling information, and outputting the information to the drive unit such that the transmitter executes a specified operation when conditions permit; and controlling, by the STM32 microcontroller before new instruction information is received, the drive unit to adjust each component of the transmitter to a corresponding working state according to the stored instruction information; and
when determining that the transmitter works unstably, adjusting, by the STM32 microcontroller, the incident power and/or the power amplifier voltage according to a result of the logic judgment, and executing fault reset and/or restart if the problem is not solved; and if still determining that the transmitter is in an insoluble fault state after reset and restart, controlling, by the STM32 microcontroller, the transmitter to conduct power off and alarm.

7. The method according to claim 6 , wherein the STM32 microcontroller can display the state information, the fault information, the incident power, the power amplifier voltage and/or the power amplifier current of the transmitter on the touch screen unit, the host computer and/or the remote access client in real time.

8. The method according to claim 6 , wherein the image acquisition unit comprises several cameras, each of which shoots a key part of the transmitter to obtain image information, and transmitting the image information to the remote access client through the local network server unit.

9. The method according to claim 6 , wherein the local network server unit comprises an STM32F103ZET6 chip, a network router and an intranet penetration device, wherein the STM32F103ZET6 chip is connected to the STM32 microcontroller through a controller area network (CAN) bus and further connected to the network router, and in which the intranet penetration device is connected to the Internet through the network router, and the remote access client can be connected to the local network server unit through the Internet.

10. The method according to claim 9 , wherein the network router distributes a fixed IP address for a local server, and equipment in a same local area network can interact with the transmitter through the IP address, wherein the intranet penetration device can map the IP address of the local server in the intranet into a domain name of a public network, and in which the remote access client can interact with the transmitter through the domain name.

11. The method according to claim 6 , wherein the image acquisition unit timely acquires an image of a key part in the transmitter, and uploads the image to the Internet through the local network server unit; and the remote access client can access to the image through the Internet, and remotely send an instruction to the STM32 microcontroller through the Internet.

Assignees

• Shaanxi Univ Of Science & Technology

Inventors

• Wang Mingwei
• Wang Zhao
• Shi Kaisheng
• Yan Rui
• Huang Yeqi

Classifications

• G05B2219/2651

  Camera, photo · CPC title

• H04W52/04

  Transmission power control [TPC] · CPC title

• G05B19/042 Primary

  using digital processors (G05B19/05 takes precedence) · CPC title

• G05B2219/25171

  Serial, RS232 · CPC title

• G05B2219/25032

  CAN, canbus, controller area network bus · CPC title