CN104486149A - Finite-state machine method for ground tests - Google Patents

Abstract

The invention provides a finite-state machine method for ground tests. On the basis of the ARINC624 protocol, a finite-state machine is created to synchronize the maintenance self-test process of a member system and coordinate the interaction between the member system and a WEB human-machine interface. The method includes initialization, protocol state machine thread starting, maintenance self-test operation condition detection, state machine state transition, interaction coordination and timeout and exception handling. The finite-state machine as an interface which is used by a user to interactively test the member system effectively provides a unified control and handling mechanism.

Description

A kind of finite state machine method for ground test

Technical field:

The present invention, for supporting the ground interactive text of each Member Systems of integrated maintenance information system, relates to a kind of finite state machine method for ground test.

Background technology:

Interactive text is an interactive process between integrated maintenance system user and Member Systems.The self-checking of Member Systems can be subject to the suppression of various condition usually, and in this case, the execution certain operations just needing user artificial is to ensure the unimpeded of test process; In addition, Member Systems is in self-checking process, and be in what stage or which kind of state, user cannot know.

When integrated maintenance system each Member Systems support maintenance self-inspection, if user carries out self-checking by operation interface to the Member Systems of support maintenance self-inspection, integrated maintenance management service (IMMS) can send to this Member Systems and safeguard self-inspection order, and corresponding detected state and testing result can be sent to IMMS by Member Systems after receiving this order.

User is started by WEB man-machine interface safeguard the operation of self-inspection, Member Systems safeguarding response that self-inspection each stage feed back, again or Member Systems needs to carry out with user alternately and the information like this such as the instruction given, all need to carry out preliminary treatment, be converted to Member Systems or the discernible message of WEB terminal; And the transmission opportunity of these message is controlled, the number of transmissions statistics and information drop-out after processing method, need especially to manage.

Summary of the invention:

The object of the invention is, for the interactive text between integrated maintenance system WEB man-machine interface and each Member Systems provides interface, encapsulate communication information and managed test process.

The invention provides a kind of finite state machine method for ground test, based on ARINC624 agreement, create a finite state machine and be used for the maintenance process of self-test of synchronous Member Systems, and it is mutual to coordinate between Member Systems and WEB man-machine interface.

Technical scheme of the present invention is as follows:

For a finite state machine method for ground test, realize mainly through following link:

(1) initialization

Create and initialization ARINC624 protocol architecture body, its data structure contains following key members: appealing structure body, response structure body, the state amount of enumerating, list of thing, user's request queue, Member Systems message queue and state machine output queue;

(2) protocol state machine thread is started:

State machine initial condition is NORMAL, and under current state, state machine monitors the user's request event from WEB man-machine interface, namely performs the maintenance self-inspection of certain Member Systems;

(3) safeguard that self-inspection service conditions detects:

According to the status message of Member Systems, state machine judges that this Member Systems safeguards whether the service conditions of self-inspection meets after receiving user's request; If condition meets, state machine encapsulation user request Concurrency delivers to Member Systems; Otherwise state machine builds the page to inform the suppression information of user's self-checking;

(4) state machine state transition:

After the request that user is started self-checking by state machine is sent to Member Systems, will the response events of Member Systems be monitored, and carry out transition between states according to the response message of Member Systems, with the state of synchronous Member Systems self-checking;

(5) cooperation interaction:

State machine the current state of Member Systems self-checking can feed back to WEB man-machine interface to inform that user knows via the structure of the page.

In above link (5), when Member Systems needs to continue to perform self-checking, interactive instruction is shown in user with page format by state machine, and operation requests follow-up for user is fed back to Member Systems, to continue or to stop test; After Member Systems executes self-checking, state machine with page format relevant prompting is shown to user and feedback user operates to Member Systems.

Finite state machine method for ground test of the present invention, also comprises time-out and abnormality processing:

When exceeding the stand-by period, state machine sends specific message to ensure the normal execution of test process to user or Member Systems; When reciprocal process occurs that network error, loss of data etc. are abnormal, state machine also performs corresponding operating to inform user or Member Systems, with avoid resource by unlimited time take.

The present invention has following technique effect:

The present invention, as the interface of user and Member Systems interactive text, effectively provides unified control and treatment mechanism, namely manages the interactive text process between WEB man-machine interface and Member Systems, provide unified control and handling process.

Accompanying drawing illustrates:

Fig. 1 is the flow process of state machine process interactive text;

Fig. 2 is ARINC624 protocol state machine transition between states figure.

Embodiment:

Realization flow of the present invention is as follows:

(1) initialization: at the beginning of running software, create and initialization ARINC624 protocol architecture body, this data structure contains following key members: appealing structure body, response structure body, the state amount of enumerating, list of thing, user's request queue, Member Systems message queue, state machine output queue;

(2) start protocol state machine thread: state machine initial condition is NORMAL, under current state, state machine monitors the user's request event from WEB man-machine interface, namely performs the maintenance self-inspection of certain Member Systems;

(3) safeguard that self-inspection service conditions detects: after state machine receives user's request and request is sent to Member Systems by non-immediate, but judge that this Member Systems safeguards whether the service conditions of self-inspection meets by the status message of Member Systems.If condition meets, state machine encapsulation user request Concurrency delivers to Member Systems; Otherwise state machine builds the page to inform the suppression information of user's self-checking;

(4) state machine state transition: after the request that user is started self-checking by state machine is sent to Member Systems, the response events of Member Systems will be monitored, and carry out transition between states according to the response message of Member Systems, with the state of synchronous Member Systems self-checking;

(5) cooperation interaction: state machine the current state of Member Systems self-checking can feed back to WEB man-machine interface to inform that user knows via the structure of the page.Such as, Member Systems may need user to perform a certain or some operations for continuing to perform self-checking and gives user interactions instruction, interactive instruction will be shown in user with page format by state machine, and operation requests follow-up for user is fed back to Member Systems, to continue or to stop test; And for example, need user oneself to judge whether passing through of test result after Member Systems executes self-checking, state machine with page format relevant prompting can be shown to user equally and feedback user operates to Member Systems;

(6) time-out and abnormality processing: Member Systems and user have time limit requirement alternately, and user waits for the response of Member Systems, again or the acknowledge message of Member Systems wait user all can have the restriction of corresponding time.When exceeding the stand-by period, state machine will send specific message to ensure the normal execution of test process to user or Member Systems; Equally, when reciprocal process occurs that network error, loss of data etc. are abnormal, state machine by execution corresponding operating to inform user or Member Systems, avoid resource by unlimited time take.

Claims (3)

1. for a finite state machine method for ground test, it is characterized in that, realize mainly through following link:

(1) initialization

Create and initialization ARINC624 protocol architecture body, its data structure contains following key members: appealing structure body, response structure body, the state amount of enumerating, list of thing, user's request queue, Member Systems message queue and state machine output queue;

(2) protocol state machine thread is started:

State machine initial condition is NORMAL, and under current state, state machine monitors the user's request event from WEB man-machine interface, namely performs the maintenance self-inspection of certain Member Systems;

(3) safeguard that self-inspection service conditions detects:

According to the status message of Member Systems, state machine judges that this Member Systems safeguards whether the service conditions of self-inspection meets after receiving user's request; If condition meets, state machine encapsulation user request Concurrency delivers to Member Systems; Otherwise state machine builds the page to inform the suppression information of user's self-checking;

(4) state machine state transition:

After the request that user is started self-checking by state machine is sent to Member Systems, will the response events of Member Systems be monitored, and carry out transition between states according to the response message of Member Systems, with the state of synchronous Member Systems self-checking;

(5) cooperation interaction:

State machine the current state of Member Systems self-checking can feed back to WEB man-machine interface to inform that user knows via the structure of the page.

2. the finite state machine method for ground test according to claim 1, it is characterized in that: in link (5), when Member Systems needs to continue to perform self-checking, interactive instruction is shown in user with page format by state machine, and operation requests follow-up for user is fed back to Member Systems, to continue or to stop test; After Member Systems executes self-checking, state machine with page format relevant prompting is shown to user and feedback user operates to Member Systems.

3. the finite state machine method for ground test according to claim 1, is characterized in that, also comprise time-out and abnormality processing:

When exceeding the stand-by period, state machine sends specific message to ensure the normal execution of test process to user or Member Systems; When reciprocal process occurs that network error, loss of data etc. are abnormal, state machine also performs corresponding operating to inform user or Member Systems, with avoid resource by unlimited time take.