CN1798072A - Single board of communication device and control method - Google Patents
Single board of communication device and control method Download PDFInfo
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- CN1798072A CN1798072A CN 200410102679 CN200410102679A CN1798072A CN 1798072 A CN1798072 A CN 1798072A CN 200410102679 CN200410102679 CN 200410102679 CN 200410102679 A CN200410102679 A CN 200410102679A CN 1798072 A CN1798072 A CN 1798072A
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Abstract
The communication single board consists of a service communication channel, a control system, a watchdog circuit, a driving circuit and a monitoring circuit. Compares the verification message outputted from the monitoring circuit with the preset verification message to decide if they are the same; if yes, then sends a signal of enabling the driving circuit to the driving circuit in order to make it switch on the control system and the service communication channel; the watchdog circuit supervises and resets the control system; if the control system is normal, then turns on the control system and the service communication channel; otherwise, cuts off the control system and the service communication channel.
Description
Technical field
The present invention relates to the communications field, particularly a kind of communication equipment veneer and control method thereof.
Background technology
Communication equipment often connects cooperating by the polylith veneer by backboard, constitutes an organic whole, and the reliability of veneer has been constructed the reliability of communication equipment, and improving the veneer reliability is eternal problem in the design of communication equipments exploitation.
As shown in Figure 1, the basic structure of existing communication equipment veneer comprises: the service communication passage, control circuit and watchdog circuit, control circuit is commonly referred to as the CPU mini system, the service communication passage comprises the input interface circuit that is linked in sequence, service processing circuit and output interface circuit, wherein: input interface circuit, service processing circuit, output interface circuit links to each other by bus respectively with the CPU mini system, by CPU mini system operation service communication port, watchdog circuit connects the CPU mini system respectively by holding wire, input interface circuit and output interface circuit, the CPU mini system is regularly exported clear dog signal to watchdog circuit, if watchdog circuit not by clear dog, is then exported reseting signal reset CPU mini system and whole service passage at given time.
Included input interface circuit, service processing circuit and the output interface circuit of service communication passage all realized by hardware, concrete executive communication Processing tasks, the CPU mini system is after device power starts, hardware cell to each circuit is configured, make it by the equipment requirements operate as normal, and carry out operation and maintenance in the course of the work.For example: read working status parameter, communicate the link setup of Processing tasks and tear operation of chain etc. etc. open.Watchdog circuit is the operating state of monitoring CPU mini system then, if the program of CPU mini system occurs when unusual, can not be according to regularly clear dog of set time cycle, and watchdog circuit output reset signal so is with whole board resetting.
For the veneer that adopts quiescent operation mechanism, each hardware cell in the service communication passage is in the quiescent operation state after device power starts by normal configuration, under the normal condition, the CPU mini system only just reads the working status parameter of each hardware cell, does not carry out the dynamic-configuration operation.Therefore, even CPU mini system operating state goes wrong, each hardware cell still can independent operate as normal, is not subjected to the influence of CPU mini system operating state.In the prior art, as shown in Figure 1, be late for dog clearly unusually when the appearance of CPU mini system, watchdog circuit resets all circuit unifications, and whole veneer restarts, and the professional of past all disconnects, and causes the system failure.
Summary of the invention
The present invention provides a kind of control method that is used for veneer and this veneer of communication equipment for improving the reliability of communication equipment.
A kind of veneer of communication equipment comprises drive circuit and supervisory circuit;
Described supervisory circuit connects described control system, and receives the authorization information of this control system output, when this authorization information is consistent with pre-configured check information, sends enable signal to described drive circuit;
Described drive circuit is connected between described service communication passage and the control system, connects described control system and described service communication passage when receiving enable signal;
Described watchdog circuit is monitored described control system, and this control system that resets when this control system is unusual.
Described supervisory circuit is a comparator.
Described service communication passage comprises input interface circuit, service processing circuit and the output interface circuit that is linked in sequence at least.
A kind of control method of above-mentioned communication equipment veneer comprises the following steps:
Whether the running status of monitoring described control system is normal, if then connect this control system and service communication passage, otherwise disconnect this control system and service communication passage; And
Monitor the running status of described control system, and this control system that when this control system is unusual, resets.
In described control method, produce and export an authorization information by described control system, this authorization information and pre-configured check information are compared the running status of judging described control system, if this authorization information is consistent with check information, determine that then the running status of control system is normal; Otherwise the running status of determining control system is unusual.
In described control method, described check information is pre-configured in the supervisory circuit, utilize this supervisory circuit to receive described authorization information and carry out consistency and judge.
In described control method, be input to the service communication passage after utilizing one drive circuit to drive the output signal of described control system, and utilize described supervisory circuit during for unanimity, to start this drive circuit in the judged result of described authorization information.
In described control method, when described control system and service communication passage were connected, this control system read the operational factor of described service communication passage, when this operational factor and original configuration parameter are inconsistent, this service communication passage was carried out reset operation.
Use veneer of the present invention and control method thereof, with the fault of veneer control system fault with the service communication passage separate operation that resets that resets, make the failure of control system not influence the operate as normal of service communication passage, promoted the reliability of veneer and communication equipment from two aspects:
1, guaranteed to have only when control system is in normal operating conditions, can the operation service communication port, random operation service communication port when having avoided the control system fault has improved the reliability of veneer.
2, control system is at back or the running state parameter that reads the service communication passage regularly of resetting at every turn, and compare with initial parameter, can judge the running status of service communication passage, if the service communication passage occurs unusual, by control system it is carried out reset operation, prevent that the service communication passage that is in normal operating conditions is reset, and has further improved the reliability of veneer.
Description of drawings
Fig. 1 is a prior art single plate structure schematic diagram;
Fig. 2 is a single plate structure schematic diagram of the present invention.
Embodiment
According to above-mentioned analysis, even the failure of CPU mini system does not influence service communication passage operate as normal yet.Therefore, single plate structure that can be by as shown in Figure 2 separates the reset operation of CPU mini system reset operation and service communication passage and carries out, and this veneer comprises: service communication passage, CPU mini system, watchdog circuit, drive circuit and supervisory circuit; The service communication passage comprises input interface circuit, service processing circuit and the output interface circuit that is linked in sequence; Supervisory circuit connects the CPU mini system by bus, and drive circuit is connected between described service communication passage and the CPU mini system by bus, and watchdog circuit connects the CPU mini system by holding wire.
The operation principle of this veneer is: watchdog circuit is the monitoring CPU mini system only, and when the CPU mini system occurs unusually, when not exporting clear dog signal according to the set time, then watchdog circuit resets to CPU mini system output reset signal.When CPU mini system and service communication channel connection, the signal of CPU mini system operation incoming traffic communication port after drive circuit drives, the read data that realization is carried out the service communication passage, write data, link setup, tear operations such as chain open, particularly the CPU mini system can read the operational factor of service communication passage, and judge whether the operational factor that reads is consistent with the parameter of original configuration, when inconsistent, the running status that the service communication passage is described breaks down, at this moment, directly the service communication passage is carried out reset operation by the CPU mini system.
In this veneer, compare with existing veneer, increase supervisory circuit and drive circuit and controlled connection between Controlled CPU mini system and the service communication passage, before the each operation service communication port of CPU mini system, earlier write an authorization information to supervisory circuit, for example: an encrypted message, pre-configured corresponding check information in supervisory circuit, judge by supervisory circuit whether this authorization information is complementary with the check information of preserving in advance, if coupling is sent enable signal to drive circuit; When drive circuit only receives enable signal, just connect the bus between CPU mini system and the service communication passage, make the CPU mini system carry out read data, write data, link setup, tear chain open or operation such as reset the service communication passage.Authorization information commonly used is a password, and supervisory circuit is a comparator, built-in in advance corresponding check password, just output is exported an enable signal to drive circuit when comparator is written into correct authorization information, connect the bus of service communication passage, otherwise bus is not switched on, and CPU just can't the operation service passage.
Like this, after the watchdog circuit CPU mini system that can directly reset, CPU mini system drove by drive circuit, service communication passage again resetted.Have only when the CPU mini system is in normal operating conditions, correct verification information can be write supervisory circuit, thus can normal running service communication passage, read the operating state of service communication passage and judge whether its operating state is normal, if normal, then do not carry out abnormality processing.If undesired,, carry out corresponding abnormality processing then according to actual conditions.
Above-mentioned control procedure can realize by following two controlled step:
The S1:CPU mini system is before the operation service communication port, utilize authentication mechanism to judge the operating state of CPU mini system, has only its operating state of working as just often, just connect the bus of CPU mini system operation service communication port, otherwise, disconnect this bus, thus Controlled CPU mini system operation service communication port.
S2: utilize the running status of watchdog circuit monitoring control system, and the unusual CPU mini system of the operating state that resets.
Above-mentioned decision operation can utilize control circuit and drive circuit to realize, this control method can be provided with before the CPU mini system operation service communication port, the output authorization information, supervisory circuit Receipt Validation information is also carried out the judgement of correctness, enable or forbid the work of drive circuit, thereby be switched on or switched off the bus that is connected between CPU mini system and the service communication passage.When supervisory circuit judges that authorization information is correct, send enable signal to drive circuit, connect the control bus of CPU mini system and service communication passage, CPU can carry out read data operation, data writing operation or reset operation to the device of service channel.If incorrect, illustrate that then this CPU mini system is in the abnormal work state, then forbid drive circuit works, disconnect bus, make CPU can't pass through bus operation service communication passage.
By above-mentioned control, promoted the reliability of veneer from two aspects, the first compared with prior art, guaranteed to have only when the CPU mini system is in normal operating conditions, can the operation service communication port, random operation service communication port when having avoided the CPU mini system unusual has improved the reliability of veneer.In addition, the CPU mini system is at back or the running state parameter that reads the service communication passage regularly of resetting at every turn, and compare with initial parameter, can judge the running status of service communication passage, if the service communication passage occurs unusual, by the CPU mini system it is carried out reset operation, prevent that the service communication passage that is in normal operating conditions is reset, and has further improved the reliability of veneer.
After the present invention utilizes the service communication passage by normal configuration, quiescent operation often, the CPU mini system only just reads its operating state, do not carry out the dynamic-configuration operation, even the work of CPU mini system is undesired, the characteristics that the service communication passage also can independent operate as normal are separated the reset operation of CPU mini system reset operation and service communication passage and are carried out, make the failure of CPU mini system not influence the operate as normal of service communication passage, thereby improved the reliability of veneer and communication equipment.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1, a kind of veneer of communication equipment comprises: service communication passage, control system and watchdog circuit is characterized in that: also comprise drive circuit and supervisory circuit;
Described supervisory circuit connects described control system, and receives the authorization information of this control system output, when this authorization information is consistent with pre-configured check information, sends enable signal to described drive circuit;
Described drive circuit is connected between described service communication passage and the control system, connects described control system and described service communication passage when receiving described enable signal;
Described watchdog circuit is monitored described control system, and this control system that resets when this control system is unusual.
2, veneer as claimed in claim 1 is characterized in that: described supervisory circuit is a comparator.
3, veneer as claimed in claim 1 is characterized in that: described service communication passage comprises input interface circuit, service processing circuit and the output interface circuit that is linked in sequence at least.
4, a kind of control method of communication equipment veneer, described veneer comprises the service communication passage at least, control system and watchdog circuit is characterized in that, comprise the following steps:
Whether the running status of monitoring described control system is normal, if then connect this control system and service communication passage, otherwise disconnect this control system and service communication passage; And,
Monitor the running status of described control system, and this control system that when this control system is unusual, resets.
5, control method as claimed in claim 4, it is characterized in that: produce and export an authorization information by described control system, this authorization information and pre-configured check information are compared the running status of judging described control system, if this authorization information is consistent with check information, determine that then the running status of control system is normal; Otherwise the running status of determining control system is unusual.
6, control method as claimed in claim 5 is characterized in that: described check information is pre-configured in the supervisory circuit, utilizes this supervisory circuit to receive described authorization information and carry out consistency and judge.
7, control method as claimed in claim 6, it is characterized in that: be input to the service communication passage after utilizing one drive circuit to drive the output signal of described control system, and utilize described supervisory circuit during for unanimity, to start this drive circuit in the judged result of described authorization information.
8, control method as claimed in claim 4, it is characterized in that: when described control system and the connection of service communication passage, this control system reads the operational factor of described service communication passage, when this operational factor and original configuration parameter are inconsistent, this service communication passage is carried out reset operation.
9, as claim 4 or 5 described control methods, it is characterized in that: utilize described watchdog circuit to reset the control on Abnormal system takes place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101026791A CN100403703C (en) | 2004-12-29 | 2004-12-29 | Single board of communication device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101026791A CN100403703C (en) | 2004-12-29 | 2004-12-29 | Single board of communication device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798072A true CN1798072A (en) | 2006-07-05 |
| CN100403703C CN100403703C (en) | 2008-07-16 |
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ID=36818864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101026791A Expired - Fee Related CN100403703C (en) | 2004-12-29 | 2004-12-29 | Single board of communication device and control method |
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| Country | Link |
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| CN (1) | CN100403703C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465856C (en) * | 2007-03-02 | 2009-03-04 | 华为技术有限公司 | Method and system for realizing one board forced resetting |
| CN101203017B (en) * | 2007-11-28 | 2011-04-06 | 中兴通讯股份有限公司 | Method of separable reset of communication and chain type far-end radio frequency unit business |
| CN107003915A (en) * | 2015-04-24 | 2017-08-01 | 富士电机株式会社 | Drive dynamic control device |
| CN113608914A (en) * | 2021-08-10 | 2021-11-05 | 安谋科技（中国）有限公司 | Chip, chip function safety detection method, medium and electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1084352A (en) * | 1996-09-09 | 1998-03-31 | Yaskawa Electric Corp | Fault state transmission method and device therefor |
| EP1359071A1 (en) * | 2002-04-30 | 2003-11-05 | Siemens Aktiengesellschaft | An apparatus for providing drive-off security in a motor vehicle environment |
| CN2572690Y (en) * | 2002-09-05 | 2003-09-10 | 云南北极光数码科技有限公司 | GSM domestic intelligent controller |
| CN2640136Y (en) * | 2003-09-11 | 2004-09-08 | 北京华控技术有限责任公司 | Live bus network interconnection unit for connecting high-speed Ethernet and FFHI bus |
-
2004
- 2004-12-29 CN CNB2004101026791A patent/CN100403703C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465856C (en) * | 2007-03-02 | 2009-03-04 | 华为技术有限公司 | Method and system for realizing one board forced resetting |
| CN101203017B (en) * | 2007-11-28 | 2011-04-06 | 中兴通讯股份有限公司 | Method of separable reset of communication and chain type far-end radio frequency unit business |
| CN107003915A (en) * | 2015-04-24 | 2017-08-01 | 富士电机株式会社 | Drive dynamic control device |
| CN107003915B (en) * | 2015-04-24 | 2020-10-09 | 富士电机株式会社 | Drive control device |
| CN113608914A (en) * | 2021-08-10 | 2021-11-05 | 安谋科技（中国）有限公司 | Chip, chip function safety detection method, medium and electronic equipment |
| CN113608914B (en) * | 2021-08-10 | 2024-04-26 | 安谋科技（中国）有限公司 | Chip, functional safety detection method of chip, medium and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100403703C (en) | 2008-07-16 |
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Granted publication date: 20080716 Termination date: 20131229 |