WO2011150746A1

WO2011150746A1 - Cascade system and method for realizing automatic circuit bridge connection

Info

Publication number: WO2011150746A1
Application number: PCT/CN2011/074227
Authority: WO
Inventors: 刘延兵; 张钊; 姜万成; 龙细军; 彭为国
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-06-01
Filing date: 2011-05-18
Publication date: 2011-12-08
Also published as: CN101883006A; CN101883006B

Abstract

The invention provides a cascade system and method for realizing an automatic circuit bridge connection. The cascade system comprises a central controller and multiple cascaded functional sub-units, wherein each functional sub-unit comprises: a micro-control module, for transmitting bridge control information to a drive module, when the heartbeat detection result of the environment monitoring plate of the current level functional sub-unit is abnormal, after the cascade system powers on; a drive module, for generating a bridge drive signal according to the received bridge connection control information transmitted by the micro-control module; a circuit switching module, for bridge-connecting, according to the bridge connection control signal transmitted by the drive module, the functional sub-unit of the lower level to the functional sub-unit of the upper level or the central controller via a transmission wire, which realizes the automatic bridge connection of the circuit. In the present invention, by using the circuit switching module to bridge-connect the functional sub-unit of the lower level to the central controller or the functional sub-unit of the upper level when the functional sub-unit of the current level has a fault, the effect range of the fault is reduced and the operation reliability of the system is improved.

Description

Cascade system and method capable of realizing automatic bridge of lines

The present invention relates to mobile communication technologies, and in particular, to a cascade system and method for realizing automatic bridge bridging. Background technique

At present, when many systems are in the network, in order to save the wiring cost of the line, a daisy chain cascading manner is often used for networking, as shown in FIG. 1, that is, the function subunit 3 is connected to the functional subunit through a transmission line. 2. The function subunit 2 is connected to the function subunit 1 through a transmission line, and the function subunit 1 is connected to the central controller through a transmission line.

However, the above networking method has the following drawbacks: When the function subunit 2 fails, the function subunit 3 cannot work normally, especially when the function subunit 1 fails, a large area of 瘫痪 will occur, affecting The system works properly. Summary of the invention

The object of the present invention is to provide a cascading system and method capable of realizing automatic bridge bridging, which can better solve the problem that the sub-function sub-unit cannot work when the pre-function sub-unit is powered down or abnormal, affecting the system. The problem of working properly.

According to an aspect of the present invention, a cascading system that can implement automatic line bridging is provided, the cascading system comprising: a central controller, and a plurality of cascaded functional subunits, each of the functional subunits including : a micro control module, a drive module, and a line switching module; wherein

The micro control module is configured to send the bridge control information when the result of the heartbeat detection of the environmental monitoring board of the function subunit of the current level is abnormal after the cascading system is powered on;

a driving module, configured to generate, according to the bridge control information sent by the micro control module Bridging the drive signal;

The line switching module is configured to bridge the next-level functional sub-unit to the upper-level functional sub-unit or the central controller through the transmission line according to the bridge driving signal sent by the driving module, thereby implementing automatic bridging of the line.

The micro control module is further configured to send the through control information to the driving module when the result of the electrical self-checking of the on-board function sub-unit environment or the result of the heartbeat detection is normal;

The driving module is further configured to generate a through-drive signal according to the pass-through control information sent by the received micro-control module;

The line switching module is further configured to directly connect the next-level function sub-unit to the function-level sub-unit of the current level through a transmission line according to a through-drive signal sent by the driving module.

Wherein, when the line switching module is a relay, the relay switches to a normally closed contact according to a bridge driving signal sent by the driving module, and turns on the next-level function sub-unit and the upper-level functional sub-unit Or the transmission line of the central controller; the relay may also switch to the normally open contact according to the through drive signal of the drive module, and turn on the function of the next level function subunit and the function subunit of the current level Transmission line.

When the line switching module is an electronic DIP switch, the electronic DIP switch turns on the next-level function sub-unit and the upper-level function sub-unit or according to the bridge driving signal sent by the driving module. a transmission line of the central controller; the electronic dip switch may further switch on a transmission line of the next-level functional subunit and the functional sub-unit of the current level according to the through-drive signal of the driving module.

According to another aspect of the present invention, a cascading method that can implement automatic bridge bridging is provided, the method comprising:

After the cascading system is powered on, when the result of the heartbeat detection of the environmental monitoring board of the functional subunit of the current level is abnormal, the micro control module of the functional subunit of the current level sends the bridge control information, and controls the driving of the functional subunit of the current level. The module generates a bridge drive signal to drive the functional subunit of the present level The line switching module bridges the next-level functional subunit to the upper-level functional subunit or central controller through a transmission line.

Wherein, the method further comprises:

When the result of the electrical self-test on the environmental monitoring board is normal, the micro control module sends a direct control information, and the driving module generates a through-drive signal, and drives the line switching module to drive the next-level functional subunit. Connect directly to the functional subunit of this level through the transmission line;

Establishing a heartbeat detection mechanism of the main control board of the functional subunit of the current level and the environmental monitoring board, and detecting the health status of the main control board and the environmental monitoring board.

The detecting the health status of the main control board and the environmental monitoring board is: detecting a temperature of the main control board and/or the environmental monitoring board or a signal of an input/output port, according to the temperature or The signal of the input/output port determines the health status of the main control board and/or the environmental monitoring board.

After the automatic bridging of the line is implemented, the method further includes: when the result of the heartbeat detection of the environmental monitoring board is normal, the micro control module sends a through control signal, and the driving module is controlled to generate a through drive signal to drive the line The switching module directly connects the next-level functional sub-unit to the functional sub-unit of the present level through a transmission line.

Wherein, when the line switching module is a relay, when the relay is switched to the normally closed contact, the next-level functional subunit is bridged to the upper-level functional sub-unit or the central controller through a transmission line; When the relay is switched to the normally open contact, the next-level functional subunit is directly connected to the functional sub-unit of the present stage through a transmission line.

Compared with the prior art, the beneficial effects of the present invention are as follows: When the function subunit of the current level fails through the line switching module, the functional subunit of the subsequent stage is bridged to the central controller or the upper functional subunit, and the fault is broken. The scope of the impact is reduced, which improves the operational reliability of the system. DRAWINGS

1 is a schematic diagram of a wiring connection of a cascade system provided by the prior art; 2 is a schematic diagram of a wiring of a cascade system that can realize automatic bridge bridging according to an embodiment of the present invention;

3 is a block diagram of a functional subunit in a cascaded system that can implement automatic bridge bridging according to an embodiment of the present invention;

4 is a schematic diagram of Embodiment 1 of a cascading system capable of implementing automatic bridge bridging according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of Embodiment 2 of a cascading system capable of implementing automatic bridge bridging according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic flowchart of a cascading method for automatically bridging a line according to an embodiment of the present invention. detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

2 shows a wiring principle of a cascading system capable of realizing automatic bridge bridging according to an embodiment of the present invention. As shown in FIG. 2, when the cascading system is not powered, the functional subunit 2 is bridged by a transmission line. The central controller; when the result of the power-on self-test of the function sub-unit 1 is normal, the electronic switch is controlled, at this time, the function sub-unit 2 is directly connected to the function sub-unit 1; when the function sub-unit 1 performs the heartbeat detection When the result is abnormal, the electronic switch is controlled, and the function subunit 2 is bridged to the central controller through the transmission line, thereby realizing the automatic bridging of the line; when the function subunit 1 performs the heartbeat detection result normally, the electronic switch is controlled, and the function is controlled. The unit 2 is connected to the function subunit 1 through a transmission line.

It should be noted that FIG. 2 illustrates the implementation principle of the cascading system provided by the embodiment of the present invention by adding an electronic switch on the transmission line. It should be understood that, in the specific implementation, the wiring of the cascading system does not change, but only through the function. The line switching module in unit 1 specifically implements automatic bridging of the line. In addition, in Figure 2, for convenience of description, only through two functional subunits The function sub-unit 1 and the function sub-unit 2 exemplify that when there are a plurality of the function sub-units, the wiring situation is analogized, and when one of the function sub-units, that is, the function sub-unit of the current level, fails, the electronic switch is controlled. The next level of functional subunits is bridged to the upper level functional subunit.

3 is a block diagram of a functional subunit in a cascaded system that can implement automatic line bridging according to an embodiment of the present invention. As shown in FIG. 3, the function subunit includes a micro control module 10, a driving module 20, And a line switching module 30.

Before the cascade system is powered on, the line switching module 30 is in a bridge state, that is, the next level function subunit is bridged to the upper level function subunit or the central controller through the transmission line.

After the cascading system is powered on, the environmental monitoring board of the function subunit performs a power-on self-test. When the main control board of the function subunit and the environmental monitoring board are normal, that is: when the self-test result is normal The micro control module 10 sends the through control information to the driving module 20, the driving module 20 generates a through-drive signal according to the received through-control information, and the line switching module 30 performs the next-level function according to the through-drive signal. The unit is directly connected to the functional subunit via a transmission line.

The environment monitoring board establishes a heartbeat detection mechanism, and detects the health status of the main control board and the environmental monitoring board. When the result of the heartbeat detection is abnormal, the micro control module 10 sends the bridge control information to the driving module 20 The driving module 20 generates a bridge driving signal according to the received bridge control information, and the line switching module 30 bridges the next-level functional sub-unit to the upper-level functional sub-unit or the central controller through the transmission line according to the bridge driving signal. Automatically bridging the line, and notifying the function subunit of the main control board that the function subunit is abnormal, and reporting through the background; when the result of the heartbeat detection is normal, the micro control module 10 sends the through control information to the drive The module 20, the driving module 20 generates a through-drive signal according to the received through-control information, and the line switching module 30 directly connects the next-level functional sub-unit to the function sub-unit through a transmission line according to the through-drive signal.

FIG. 4 shows a cascade system capable of realizing automatic bridge bridging according to an embodiment of the present invention. A schematic diagram of Embodiment 1, as shown in FIG. 4, the line switching module is implemented by a relay, and the cascading system includes two functional subunits, which will be described in detail below with reference to FIG.

Before the cascade system is powered up, the relay is in a normally closed contact. At this time, the line is in a bridge state, and the function subunit 2 is bridged to the central controller through a transmission line.

After the cascading system is powered on, the environmental monitoring board of the function subunit 1 performs a power-on self-test. When the main control board of the function subunit 1 and the environmental monitoring board are normal, that is: when the self-test result is normal The micro control module of the function subunit 1 controls the drive module to generate a through drive signal. At this time, the drive signal is a voltage or current signal, and the relay is driven to switch to the normally open contact. At this time, the line is in a through state, and the function is The subunit 2 is directly connected to the function subunit 1 through a transmission line.

The environmental monitoring board establishes a heartbeat detection mechanism, and detects a health state of the main control board and the environmental monitoring board. When the result of the heartbeat detection is abnormal, the micro control module controls the driving module to generate a bridge driving signal, When the driving signal is a voltage or current signal, the relay is driven to switch to the normally closed contact. At this time, the line is in a bridge state, and the function subunit 2 is bridged to the central controller through the transmission line, thereby realizing automatic bridge connection of the line. And notifying the function subunit 1 of the main control board that the function subunit 1 is abnormal, and reporting through the background; when the result of the heartbeat detection is normal, the micro control module controls the driving module to generate a through drive signal, at this time, the driving signal For a voltage or current signal, the relay is driven to switch to a normally open point, at which point the line is in a through state, and the functional subunit 2 is directly connected to the functional subunit 1 via a transmission line.

The protection circuit shown in FIG. 4 can be a transient voltage suppressor (TVS), a Zener diode, etc., and is used to prevent the voltage on the line in FIG. 4 from being excessively high. effect.

FIG. 5 is a schematic diagram of Embodiment 2 of a cascading system that can implement automatic bridge bridging according to an embodiment of the present invention. As shown in FIG. 5, the line switching module is implemented by using an electronic DIP switch, and the cascading system includes Two functional subunits are described in detail below in conjunction with FIG. Before the cascading system is powered on, the electronic dial switch A knife is thrown to the 4 position, the electronic dial switch

B knife throws to 4 position, electronic DIP switch C knife throws to 4 position, electronic DIP switch D knife throws to 4 position, electronic DIP switch E knife throws to 5 position, electronic DIP switch F knife throws to 5 position The electronic dial switch G knife is thrown to the 8 position, and the electronic dial switch H knife is thrown to the 8 position. At this time, the line is in the bridge state, and the function subunit 2 is bridged to the central controller through the transmission line.

After the cascading system is powered on, the environmental monitoring board of the function subunit 1 performs a power-on self-test. When the main control board of the function subunit 1 and the environmental monitoring board are normal, that is: when the self-test result is normal The micro control module of the function subunit 1 controls the driving module to generate a through drive signal, drives the electronic dial switch A to be thrown to the 1 position, the electronic dial switch B to the 1 position, and the electronic dial switch C to the tool 1 position, electronic DIP switch D knife throws to 1 position, electronic DIP switch E knife throws to 5 position, electronic DIP switch F knife throws to 5 position, electronic DIP switch G knife throws to 5 position, electronic dial code The switch H knife is thrown to the 5 position, at which time the line is in the through state, and the function subunit 2 is directly connected to the function subunit 1 through the transmission line.

The environmental monitoring board establishes a heartbeat detection mechanism, and detects a health state of the main control board and the environmental monitoring board. When the result of the heartbeat detection is abnormal, the micro control module controls the driving module to generate a bridge driving signal, and drives The electronic dial switch A knife is thrown to the 4 position, the electronic dial switch B knife is thrown to the 4 position, the electronic dial switch C knife is thrown to the 4 position, the electronic dial switch D knife is thrown to the 4 position, the electronic dial switch E knife Throwing to the 5 position, the electronic dial switch F knife is thrown to the 5 position, the electronic dial switch G knife is thrown to the 8 position, the electronic dial switch H knife is thrown to the 8 position, at this time, the line is in the bridge state, the function is The unit 2 is bridged to the central controller through the transmission line, and the automatic bridging of the line is realized, and the function subunit 1 of the main control board is notified to operate abnormally, and reported through the background; when the result of the heartbeat detection is normal, micro The control module controls the driving module to generate a through drive signal, drives the electronic DIP switch A to throw to the 1 position, the electronic DIP switch B to the 1 position, and the electronic DIP switch C to the tool 1 position, electronic DIP switch D knife throws to 1 position, electronic DIP switch E knife throws to 5 position, electronic DIP switch F knife throws to 5 Position, the electronic dial switch G knife is thrown to the 5 position, the electronic dial switch H knife is thrown to the 5 position, at this time, the line is in the through state, and the function subunit 2 is directly connected to the function subunit 1 through the transmission line. The choice of the sub dial switch type is not limited to this.

FIG. 6 is a flowchart of a cascading method for automatically bridging a line according to an embodiment of the present invention. As shown in FIG. 6, the method includes the following steps:

Step S101: When the cascade system is not powered, the line is in the bridge state by default.

In this step, the line switching module control line is in the bridge state, that is: the next level function subunit is bridged to the upper level function subunit or the central controller through the transmission line.

Step S102: The cascading system is powered on, and the environmental monitoring board of the functional subunit of the current level performs a power-on self-test.

In this step, the power-on self-test not only detects the environmental monitoring board, but also detects the main control board of the functional subunit of the current level through the inter-board communication link.

In step S103, it is determined whether the result of the self-test is normal. If the environment monitoring board and the main control board are both normal, step S104 is performed, and if at least one of them is abnormal, step S108 is performed.

Step S104, the control line switching module switches the line to the through state.

In this step, the micro control module of the function subunit of the current level sends the through control information, and the control drive module generates the through drive signal, and the drive line switching module switches the line to the through state, that is: the next level function subunit directly passes through the transmission line. Connect to the function subunit of this level.

Step S105: The environment monitoring board establishes a heartbeat detection mechanism of the main control board and the environmental monitoring board, and detects the health status of the main control board and the environmental monitoring board.

In this step, the heartbeat detection mode and the detection time interval can be specified to complete the detection of the main control board and the environmental monitoring board. The heartbeat detection mode can be various, for example: the temperature sensor can be utilized, according to the advance Set the time interval to collect the main control board and/or environment The temperature of the monitoring board is determined whether the temperature of the main control board and/or the environmental monitoring board is healthy by determining whether the temperature exceeds a normal working threshold, or by detecting the input of the main control board and/or the environmental monitoring board. Outputting a port signal, determining the health status of the main control board and/or the environmental monitoring board according to the signal, especially when the signal of the input/output port is not detected, and the main control board and/or the environmental monitoring board are abnormal at this time. a special case.

In step S106, it is determined whether the result of the heartbeat detection is normal. If the heartbeat of the environmental monitoring board and the heartbeat of the main control board are both normal, step S107 is performed, and if at least one of them is abnormal, step S108 is performed.

Step S107, the control line switching module switches the line to the through state.

Step S108, the control line switching module switches the line to the bridge state.

In this step, the micro control module of the function subunit of the current level sends the bridge control information, and the control drive module generates the bridge drive signal, and the drive line switching module switches the line to the bridge state, that is, the next level function subunit is bridged through the transmission line. Primary function subunit or central controller.

In step S109, the environment monitoring board notifies the main control board that the function subunit of the main control board is abnormal, and reports it through the background.

In summary, the present invention controls the driving module driving circuit switching module through the micro control module to bridge the functional subunit of the subsequent stage to the central controller or the upper functional subunit when the functional subunit fails. The automatic bridging of the line achieves the purpose of narrowing the scope of the fault and improves the operational reliability of the system.

Although the invention has been described in detail above, the invention is not limited thereto, and various modifications may be made by those skilled in the art in accordance with the principles of the invention. Therefore, modifications made in accordance with the principles of the present invention should be construed as falling within the scope of the present invention.

Claims

Claim

A cascade system capable of automatic bridge bridging, the cascade system comprising: a central controller, and a plurality of cascaded functional subunits, wherein each of the functional subunits comprises: micro control a module, a drive module, and a line switching module; wherein

The micro control module is configured to send the bridge control information to the driving module when the result of the heartbeat detection of the environmental monitoring board of the functional subunit of the current level is abnormal after the cascading system is powered on;

a driving module, configured to generate a bridge driving signal according to the bridge control information sent by the micro control module;

2. The cascade system according to claim 1, wherein

The micro control module is further configured to send the through control information to the driving module when the result of the electrical self-test on the board of the function sub-unit environment monitoring or the result of the heartbeat detection is normal;

The cascading system according to claim 1 or 2, wherein, when the line switching module is a relay, the relay switches to a normally closed contact according to a bridge driving signal sent by the driving module, and is connected And a transmission line of the next-level functional subunit and the upper-level functional sub-unit or the central controller.

The cascading system according to claim 2, wherein, when the line switching module is a relay, the relay switches to a normally open contact according to a through drive signal of the driving module, and turns on the A transmission line of the next-level functional subunit and the functional subunit of the present level.

The cascading system according to claim 1 or 2, wherein, when the line switching module is an electronic dial switch, the electronic dial switch is turned on according to a bridge driving signal sent by the driving module. a transmission line of the next-level functional subunit and the upper-level functional sub-unit or the central controller.

The cascading system according to claim 2, wherein, when the line switching module is an electronic dial switch, the electronic dial switch is turned on according to a through drive signal of the driving module. A transmission line of the primary functional subunit and the functional subunit of the present level.

A cascading method for automatically bridging a line, the method comprising: after the cascading system is powered on, when the result of the heartbeat detection of the environmental monitoring board of the functional subunit of the current level is abnormal, the level is The micro control module of the function subunit sends the bridge control information, and the drive module that controls the function subunit of the current level generates a bridge drive signal, and the line switch module that drives the function subunit of the current level bridges the next level function subunit through the transmission line. Automatic bridge to the line to the upper functional subunit or central controller.

The method according to claim 7, wherein the method further comprises: when the result of the electrical self-test on the environmental monitoring board is normal, the micro control module sends a direct control information to control the driving module Generating a through-drive signal, driving the line switching module to directly connect the next-level function sub-unit to the functional sub-unit of the current level through a transmission line; establishing a main control board of the functional sub-unit of the current level and the environmental monitoring The heartbeat detection mechanism of the board detects the health status of the main control board and the environmental monitoring board.

The method according to claim 8, wherein the detecting the health status of the main control board and the environmental monitoring board is:

Detecting a temperature of the main control board and/or the environmental monitoring board or a signal of the input/output port, and determining the main control board and/or the environmental monitoring board according to the temperature or the signal of the input/output port The state of health.

10. A method according to claim 7, 8 or 9, characterized in that the line is implemented After automatic bridging, the method further includes:

When the result of the heartbeat detection of the environmental monitoring board is normal, the micro control module sends a through control signal, and the driving module generates a through drive signal, and drives the line switching module to pass the next-level functional subunit through the transmission line. Connect directly to the functional subunit of the present level.

The method according to claim 10, wherein, when the line switching module is a relay, when the relay is switched to a normally closed contact, the next-level functional subunit is bridged to the The upper functional subunit or the central controller; when the relay is switched to the normally open contact, the next functional subunit is directly connected to the functional subunit through the transmission line.