CN105182840A - Remote power source reset controller - Google Patents

Abstract

The invention discloses a remote power reset controller, comprising: an upper computer, which is provided with a first network interface; a lower computer, which is provided with a second network interface, and the second network interface communicates with the first network interface. Data connection; a plurality of driving units, which are respectively connected to the lower computer; and a plurality of relays, which are correspondingly connected to the plurality of driving units, so that the upper computer can remotely control the relay through the lower computer . The present invention has the working power supply of other external devices that are powered by its power supply output, by temporarily disconnecting the power supply of the acquisition controller of the corresponding subsystem, and then reconnecting the power supply, realizing remote power-on reset for the controlled object Function.

Description

Remote Power Reset Controller

technical field

The invention relates to the field of remote control, in particular to a remote power reset controller.

Background technique

In the remote monitoring system of radio and television stations, most of the equipment is a microcomputer control system composed of embedded processors as the core. Due to the interference of many electromagnetic waves in the radio and television station, these equipment are prone to control abnormalities, resulting in equipment work unusual. When the main controller detects that the signal of a certain device is abnormal, the device can be reset and re-enter the normal working state by means of remote power reset, so as to achieve the purpose of unattended and remote monitoring of the radio station system. The control objects of the power reset are mainly signal acquisition controllers and other signal processing devices. The radio and television remote monitoring system is composed of multiple subsystems such as FM system, TV system, environment system, power system and signal source system. The power reset controller is an important device in the radio and television remote monitoring system, so the power reset controller is of great significance for ensuring the normal operation of the signal acquisition controllers corresponding to the above-mentioned subsystems.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide a remote power reset controller, so as to overcome the shortcoming that the signal collectors corresponding to each subsystem in the radio and television remote monitoring system cannot be remotely reset.

To achieve the above object, the present invention provides a remote power reset controller, comprising: a host computer, which is provided with a first network interface; a lower computer, which is provided with a second network interface, and the second network interface is connected to the A first network interface for data connection; a plurality of drive units, which are respectively connected to the lower computer; and a plurality of relays, which are respectively connected to the plurality of drive units, so that the upper computer can remotely pass through the lower computer. machine controls the relay.

In the above technical solution, the upper computer and the lower computer are single-chip microcomputers.

In the above technical solution, the relay is connected to the signal acquisition controller of the radio and television remote monitoring system.

Compared with the prior art, the present invention has the following beneficial effects:

1. The remote power reset controller in the present invention has a working power supply for other external devices that are powered from its power supply output, by temporarily disconnecting the power supply of the acquisition controller of the corresponding subsystem, and then reconnecting the power supply, realizing The controlled object performs remote power-on reset function. The power reset controller is an important device in the radio and television remote monitoring system. The present invention ensures that the signal acquisition controllers corresponding to each subsystem of the radio and television remote monitoring system work normally and can overcome electromagnetic interference.

2. The present invention can also be applied to other automation control fields, as power switch control or remote power-on reset operation for some electronic equipment.

Description of drawings

FIG. 1 is a structural diagram of a remote power reset controller according to the present invention.

Fig. 2 is a control flow chart of the remote power reset controller according to the present invention.

Fig. 3 is a flowchart of system initialization according to the present invention.

Fig. 4 is a flowchart of timer 0 (1 ms) interrupt processing according to the present invention.

Fig. 5 is a flow chart of network interface data receiving and processing according to the present invention.

Fig. 6 is a flow chart of the remote control command processing of the upper computer according to the present invention.

Detailed ways

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

The remote power reset controller is a power control device with a network interface. The device can temporarily cut off the power supply of the acquisition controller of the corresponding subsystem for other external devices connected to the power supply terminal from its power supply, and then reconnect the power supply to achieve the purpose of remote power-on reset for the controlled object .

As shown in Figure 1, a remote power reset controller according to a specific embodiment of the present invention includes: an upper computer, a lower computer 10, a plurality of drive units 30 and a plurality of relays 40, and the upper computer is provided with a first network interface; The lower computer 10 is provided with the second network interface 20, as preferably, the upper computer and the lower computer are single-chip microcomputers, and the lower computer adopts a Mega64 single-chip microcomputer, and the second network interface and the first network interface 20 carry out data connection, that is, remotely connect through the network; Each drive unit 30 is connected to the lower computer respectively, and a plurality of relays 40 are respectively connected correspondingly to a plurality of drive units 30, so that the upper computer can remotely control the relay 40 through the lower computer 10. More specifically, a plurality of drive units 30 can be integrated The 12-way drive circuit, the relay 40 is 12, respectively connected to the 12-way drive circuit; wherein, the remote power reset controller is mainly used in radio and television stations, and the signal of the radio and television remote monitoring system in the radio and television station is connected by the relay The acquisition controller is connected to overcome the electromagnetic interference of the radio station.

The working principle is: receive the command from the host computer, control the relay 40 in the 12-way driving circuit, and the corresponding relay 40 will generate an action, so that the power supply of the output socket can be connected or disconnected, and the signal acquisition controller can be reconnected. Purpose of electrical reset. The upper computer can query and set the working status and parameters of the power reset controller (ie, the lower computer) through the network interface, and the system parameters are set remotely by the upper computer through the Ethernet.

Below, the application implementation of the remote power reset controller is introduced in detail, as follows:

The remote power reset controller in this embodiment, its development environment is as follows:

Hardware environment: 1GHz CPU, 1GB memory, 80GB hard disk or more advanced configuration;

Software environment: WindowsXP, Windows2000 operating system;

Development tools: ICCAVRV7.2

Programming language: C language

The remote power reset controller in this embodiment, its operating environment is as follows:

The embedded control operation of the remote power reset controller needs to run on the Mega64 microcontroller. The control source program of the remote power reset controller is edited and compiled on a PC. After the compilation and debugging are correct, a machine code file is generated. The machine code file is downloaded to the Mega64 single-chip microcomputer inside the power reset controller through ISP to run.

The main flowchart of the embedded control of the remote power reset controller in this embodiment is shown in FIG. 2 . After the power reset controller is powered on and reset, the single-chip microcomputer program starts to run, and the basic working process is shown in FIG. 2 . Initialize the system of the single-chip microcomputer first, then read the system parameters stored in the EEPROM, obtain the communication parameters such as the IP address, subnet mask, gateway, and host IP of the network interface of the single-chip microcomputer from the system parameters, and configure the network interface The chip ENC28J60 is initialized; the work schedule is the time information to control whether the power reset controller is in the working state; the main process includes functions such as system initialization, network interface initialization, and reading the work schedule. After the initialization work is completed, Execute the while loop, wait for the interrupt, and execute the corresponding interrupt service routine when there is an interrupt request. Other functions are called in timer and interrupt service. More specifically, as follows:

The functions of network interface communication, relay control and system parameter setting are all called in the timer interrupt service. Two internal timers, Timer0 and Timer1, are used. The timing interval of Timer0 is 1ms, and the timing interval of Timer1 is 10ms;

The system initialization workflow is shown in Figure 3. After the system is powered on and reset, it must be initialized first. The initialization content includes: watchdog reset setting, IO port initial state setting, relay output default state setting, timer initial value, working mode setting, interrupt system setting initialization, etc.

The timer Timer0 interrupt service process is shown in Figure 4. Timer Timer0 is a 16-bit timer inside the Mega64 single-chip microcomputer. When the system initializes it, the timing interval of the timer is set to 1ms. Using the 1ms timing interrupt, the connection to the SPI interface is realized by calling the spi_process() function. The ENC28J60 network controller performs regular query, and according to the working status of the network interface, performs operations such as data sending and receiving and communication response for the Ethernet communication of the network interface.

The network interface data receiving and processing flow is shown in Figure 5. In FIG. 5, in FIG. 5, the power reset controller can receive a UDP data packet from the network interface, and the data packet is a command or system parameter from the host computer, or data that needs to be forwarded to the serial interface.

The remote data control command processing flow of the upper computer is shown in Figure 6. In the remote data control command processing flow of the host computer, as shown in Figure 6, the commands from the host are of the following types:

(1) Query the device address command; the device address can be one of 00~99, and the default is 00;

(2) Read system status command. The status of the device includes: the current status of the 12-way relay output; the working schedule of the device; the name of the device; the real-time clock of the device; and the internal status of the device.

(3) Read system parameter command. Determine the query parameters, read the parameters, and return to the host computer. System parameter commands include: current channel number, reset time length, reset time interval, characteristic characters and other parameters.

(4) Execute the power reset command: extract the reset command content sent by the host computer from the received data packet, obtain the channel number and operation mode (power off, power on, reset), call the corresponding relay operation function, and complete the corresponding action.

(5) Write system parameter command: Extract the system parameter sent by the host computer from the received data packet, modify the current system parameter, and save it to EEPROM. The content of system parameters is the same as point (3).

When the present invention is used for the first time, the client can be used to configure channel parameters according to functional requirements. In addition, just turn on the power switch, the device can work automatically, no need to repeat the settings every time. The operation of the panel is only used as a query device working parameter when necessary.

In summary, the remote power reset controller in the present invention has a working power supply for other external devices that are powered from its power supply output. By temporarily disconnecting the power supply of the acquisition controller of the corresponding subsystem, and then reconnecting the power supply , to realize the function of remote power-on reset for the controlled object. The power reset controller is an important device in the radio and television remote monitoring system. The present invention ensures that the signal acquisition controllers corresponding to each subsystem of the radio and television remote monitoring system work normally and can overcome electromagnetic interference. And the present invention can also be applied to other automatic control fields, as power switch control or remote power-on reset operation for some electronic equipment.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to make and use various exemplary embodiments of the invention, as well as various Choose and change. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (3)

1. A remote power reset controller, characterized in that, comprising: The host computer is provided with a first network interface; The lower computer is provided with a second network interface, and the second network interface is connected to the first network interface for data connection; a plurality of drive units, which are respectively connected to the lower computer; and A plurality of relays are respectively connected correspondingly to the plurality of driving units, so that the upper computer can remotely control the relays through the lower computer. 2. The remote power reset controller according to claim 1, wherein the upper computer and the lower computer are single-chip microcomputers. 3. The remote power reset controller according to claim 1, wherein the relay is connected with a signal acquisition controller of a radio and television remote monitoring system.