5-自动化专业-单片机-英文文献-外文翻译中英对照.doc

Dormancy of the one-chip computer---restore to the throne in the

operation way and improve

anti- interference ability

Abstract: Introduce a kind of dormancy of using- restore to the throne in

theoperation way and improve the anti-interference ability method of the

one-chip computer;Analyse its scope of application, provide and use the circuit

performance of the one-chip computer improves rapidly, demonstrate the

outstanding advantage in the operation, logic control, intelligent respect,

replaced and enlarged the measuring that the circuit made up, control circuit

by digital logical circuit, operation originally to a great extent, use very

extensivly. But because it have system halted, procedure run critical defect

of flying etc, make it limit in a lot of important application of occasion.

A lot of technology in anti-interference , for example set up the software trap,

add thehardware to guard the gate in dog's circuit etc, can make this problem

havebetter settlement, but still the existing problem: ① Guard the gate dog

at the movement, mean and appear mistake already and run some time, this is

restored to the throne voluntarily in practice, alternate pulse of adopting

etc or restore to the throne waking according to external terms to the one-chip

computer up. After being restored to the throne each time, the one-chip computer

carries out the corresponding procedure, enters dormancy in time after

finishing carrying out the task, wait to be restored to the throne nextly. Have

solved above-mentioned problems well with this method , and has got better

result in the agricultural voltage transformer comprehensive protector

experiment. Now take 51 serial one-chip computers as an example and probe into

the concrete principle and implementation method, restored to the throne the

signal as the high level.

converter often, then store showing. This course is very fast, but steady for

reading, the data per second are only upgraded 1 -2 times, a large amount of

time of CPU is used for waiting. Let CPU carry out and enter dormancy directly

after the task , restore to the throne and wake by external world up It carry

out the next operation, this is to restore to the throne the law regularly In

this way can make anti-interference ability strengthen greatly , have 2 points

mainly: ①. At the dormancy, procedure stop run, can appear PC indicator

disorderly procedure that causes run and fly. Work time in dormancy proportion

1:9, that is to say 1 s have 0.1 time of s used for measuring, sending off showing,

there is time dormancy of 0.9s, the probability that the procedure is interfered

once present the system halted during a job, can certainly resume when restored

to the throne next time. As to only instrument that show, some reading mistake

that 1s appear accidentally there is no memory to the next measurement, be could

bear , belong to “pass” mistake. This kind is restored to the throne the

advantage of dog's circuit for guarding the gate regularly, first, change

waiting time into a dormancy state, time to shorten and may be interfered; Second,

avoided happenning that the dog controls the death circulation of the link to

include guarding the gate.

be will it be one season autumn spring and summer, If let dormancy its , measure

have water wheels pulse constantly, anti-interference ability can strengthen

greatly. So, so long as link up the restoring to the throne of the pulse of

the water wheels and CPU, the water wheels rotate a circle each time, CPU is

restored to the throne once, hot form. can work normally , this is restored

to the throne the law by the external condition . Similar application have half

electron kilowatt-hour meter , go on one count just when the machinery degree

wheels and transfers to a circle, users do not need the electricity, CPU has

been knowing the dormancy all the time . The restoring to the throne in the

interval not to be regular, but confirmed according to the external condition

CPU up with the alarm signal after setting up warning time. This kind of method

is suitable when the long interval is made, can also follow the result of this

operation ，determine to wake time up in alarm next time temporarily, very

flexible and convenient. ② The signal of using the system to be inherent is

as reducing the pulse regularly. Use 50Hz worker power make reducing after

having a facelift frequently, already omit the timer, gathered the

corresponding signal for the phase place which measured the electric current

signal at the same time, as Fig. 2 shows.

2.2 External conditions are restored to the throne

Send external condition pulse to and is restored to the throne the end son

2.3 Reduce cycle and restored to the throne the high electricity at ordinary

times