CN102360312B - Equipment scheduling method - Google Patents

Abstract

The invention discloses an equipment scheduling method. The problem of equipment contention is solved by using an equipment locking technology. With the requirement for using of one function of a piece of equipment, a task is required to ask a scheduling engine for a lock which corresponds to the function; and only when the task obtains the lock, the equipment can be used. During the execution ofa plurality of tasks, the tasks can be concurrently executed. Only when some pieces of equipment are required to be used, long waiting time can be required. But overall speaking, by adoption of the equipment locking technology, compared with a method for sequentially executing the tasks, the method provided by the invention has the advantages that: the waiting time of the tasks is greatly reduced; the utilization rate of the equipment can be greatly improved; and the execution time of the plurality of tasks is reduced.

Description

A kind of equipment uses dispatching method

Technical field

The present invention relates to a kind of equipment and use dispatching method, the equipment that relates in particular in a kind of electric-power metering business application system uses dispatching method.

Background technology

At present, the function of electric-power metering business application system mainly is to support tasks such as the arrival reception of Utilities Electric Co.'s metering outfit (as electric energy meter, mutual inductor), warehouse-in, calibrating, outbound, and wherein each task all needs to coordinate warehousing system, automatic calibration streamline, RFID asset identification systems etc. and finishes.Warehousing system is made up of hardware devices such as warehouse, streamline, carrying implement and control system; The automatic calibration streamline is made up of calibration equipment, streamline and control system; The RFID asset identification systems is made up of RFID recognizer and control system.Owing to have more hardware device in the total system, and some hardware device has only a cover, when carrying out different tasks so at the same time, can have the contention problem of equipment.

Scheduler module in the electric-power metering business application system comprises dispatch interface and the scheduling engine of equipment, and the equipment scheduling interface provides two kinds of interface modes, the one, WebService, and the 2nd, the publicly-owned method of class, different tasks can be used different interfaces; Scheduler module is that these tasks are sorted for the solution of device contention problem, and another task of the complete back of task is restarted.For example need to put in storage and examine and determine two tasks, and the equipment that the warehouse-in task need be used there are RFID recognizer, warehouse, carrying implement, storage streamline; The equipment that verification task need be used has warehouse, carrying implement, storage streamline, calibration equipment, calibrating streamline.Then these two tasks are using warehouse, carrying implement, these three equipment of storage streamline to have conflict.In order normally to finish this two tasks, need artificially two tasks to be sorted at present, restart another task after a task is finished, solve the collision problem of these equipment.But this method has following shortcoming: the firstth, and usage ratio of equipment is low; Second is that two task executions are serials, and the execution time is longer.Therefore how to guarantee that usage ratio of equipment is the highest, and the influence that farthest reduces task execution efficient is problem solved by the invention.

Summary of the invention

The equipment that the purpose of this invention is to provide in a kind of electric-power metering business application system uses dispatching method, improves usage ratio of equipment.

The present invention adopts following technical proposals: a kind of equipment uses dispatching method, may further comprise the steps: (1), initialization: the initialization information of equipment, functions of the equipments, equipment lock, equipment being locked corresponding type is loaded in the system cache, and the scheduling engine of supply equipment uses;

(2), when task need be used the function of equipment, the execution of suspended task sends the request of intending application equipment lock to the dispatch interface of equipment, described request comprises the characteristic information of equipment lock and the characteristic information of task self;

(3), when the dispatch interface of equipment receives the information of request lock of task, give the scheduling engine of equipment;

(4), after the scheduling engine of equipment receives the information of request lock of task, query facility lock operating position table checks whether this lock occupied, if, execution in step (5) then; If not, execution in step (10) then;

(5), the scheduling engine checkout facility of equipment lock type corresponding tables, judge: if this lock is unique lock execution in step (6); If be limited shared lock then execution in step (8); If be complete shared lock then execution in step (10);

(6), the scheduling engine of equipment is occupied by this lock of dispatch interface notice task;

(7), when the task of taking this lock discharges lock, scheduling engine checkout facility lock operating position table, whether inquiry has the task of waiting for this lock: if, then according to the order execution in step (10) of priority; If not, continue to wait for;

(8), the scheduling engine of equipment is according to the information of request lock, judges whether current task meets shared service condition, if, execution in step (10); If not, execution in step (9);

(9), the scheduling engine of equipment makes regular check on the task list of waiting for this lock, whether have the task of possessing shared condition, if do not have, continue to wait for if checking; If have, execution in step (10);

(10), the scheduling engine of the equipment task of giving this lock of request with this lock by dispatch interface, and in equipment lock operating position table, add a record, when current task is given back lock, delete this record.

Described equipment lock operating position table comprises the tabulation of equipment lock, current use task, task to be used.

The equipment that the present invention is used for the electric-power metering business application system uses dispatching method, utilizes the method for software " lock " to solve the contention problem of equipment.When a task need be used certain function of certain equipment, need only when this task is obtained this lock, could use this equipment to the corresponding lock of this function of equipment scheduling engine requests.When carrying out a plurality of task, these tasks can executed in parallel.Only when needs use some equipment, just may cause some waits, but overall, owing to used " lock " method, method with respect to the execution of task order, the present invention has significantly reduced the stand-by period of task, can greatly improve usage ratio of equipment and a plurality of task executions times of reduction.

Description of drawings

Fig. 1 is schematic diagram of the present invention;

Fig. 2 is workflow diagram of the present invention.

Embodiment

Present device uses dispatching method to be adopted as the contention problem that technology that equipment adds " lock " solves equipment, " lock " is a kind of solution that puts forward for the contention problem that solves shared resource in a kind of software systems, lock herein, it or not the lock on the real physical, but a kind of data structure of software, can regard token as, the software industry generally is referred to as " lock ", generally be exactly that task is only held this token and could be used relevant equipment, the following apparatus for establishing lock table of describing is described and how to be locked.In the database of electric-power metering business application system, set up an equipment lock table, this table record each equipment corresponding " lock " reach the type of " lock ".Equipment can corresponding a plurality of " locks " at different functions, and " lock " type includes unique lock, limited shared lock and complete shared lock three classes.Unique lock represents that this equipment can only allow a task to use at one time; Limited shared lock represents that this equipment allows two and two above tasks to use simultaneously when meeting certain condition; Shared lock represents that this equipment allows a plurality of tasks to use simultaneously fully.As shown in Figure 1, when task need be used certain function of certain equipment, the execution of suspended task sent the information of asking corresponding lock by the equipment scheduling interface to the equipment scheduling engine, and the equipment scheduling engine returns the lock of request to task.

As shown in Figure 2, the present invention specifically may further comprise the steps:

(1), initialization, the initialization information of equipment, functions of the equipments, equipment lock, type that the equipment lock is corresponding is loaded in the system cache, the supply equipment scheduling engine uses;

(2), when task need be used the function of equipment, the execution of suspended task sends the request of intending application equipment lock to the dispatch interface of equipment, described request comprises the characteristic information of equipment lock and the characteristic information of task self; Use this equipment how long to wait as task names, task type, task implementation progress, needs;

(3), when the dispatch interface of equipment receives the lock information of task, give the scheduling engine of equipment;

(4), after the scheduling engine of equipment receives lock information, query facility lock operating position table checks whether this lock occupied, if, execution in step (5) then; If not, execution in step (10) then; Wherein the content of equipment lock operating position table record comprises the tabulation of equipment lock, current use task, task to be used.

(5), the scheduling engine checkout facility of equipment lock type corresponding tables, judge: if this lock is unique lock execution in step (6); If be limited shared lock then execution in step (8); If be complete shared lock then execution in step (10);

(6), the scheduling engine of equipment is occupied by this lock of dispatch interface notice task;

(7), when the task of taking this lock discharges lock, scheduling engine checkout facility lock operating position table, whether inquiry has the task of waiting for this lock: if, then according to the order execution in step (10) of priority; If not, continue to wait for;

(8), the scheduling engine of equipment is according to the information of the lock of task requests, judges whether current task meets shared service condition, if, execution in step (10); If not, execution in step (9);

(9), the scheduling engine of equipment makes regular check on the task list of waiting for this lock, whether have the task of possessing shared condition, if do not have, continue to wait for if checking; If have, execution in step (10);

(10), the scheduling engine of equipment is given this lock by dispatch interface the task of this lock of request, and in equipment lock operating position table, add a record, record this lock, the current use task of this lock, task to be used, when current task is given back lock, delete this record.

Claims (2)

1. an equipment uses dispatching method, it is characterized in that: may further comprise the steps: (1), initialization: the initialization information of equipment, functions of the equipments, equipment lock, equipment being locked corresponding type is loaded in the system cache, and the scheduling engine of supply equipment uses;

(2), when task need be used the function of equipment, the execution of suspended task sends the request of intending application equipment lock to the dispatch interface of equipment, described request comprises the characteristic information of equipment lock and the characteristic information of task self;

(3), when the dispatch interface of equipment receives the information of request lock of task, give the scheduling engine of equipment;

(4), after the scheduling engine of equipment receives the information of request lock of task, query facility lock operating position table checks whether this lock occupied, if, execution in step (5) then; If not, execution in step (10) then;

(5), the scheduling engine checkout facility of equipment lock type corresponding tables, judge: if this lock is unique lock execution in step (6); If be limited shared lock then execution in step (8); If be complete shared lock then execution in step (10);

(6), the scheduling engine of equipment is occupied by this lock of dispatch interface notice task;

(7), when the task of taking this lock discharges lock, scheduling engine checkout facility lock operating position table, whether inquiry has the task of waiting for this lock: if, then according to the order execution in step (10) of priority; If not, continue to wait for;

(8), the scheduling engine of equipment is according to the information of request lock, judges whether current task meets shared service condition, if, execution in step (10); If not, execution in step (9);

(9), the scheduling engine of equipment makes regular check on the task list of waiting for this lock, whether have the task of possessing shared condition, if do not have, continue to wait for if checking; If have, execution in step (10);

(10), the scheduling engine of the equipment task of giving this lock of request with this lock by dispatch interface, and in equipment lock operating position table, add a record, when current task is given back lock, delete this record.

2. equipment according to claim 1 uses dispatching method, it is characterized in that: described equipment lock operating position table comprises the task list of equipment lock, current use task, waiting facilities lock.

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