CN102110549A - Method for shortening total action time of intelligent device - Google Patents

Abstract

The invention provides a method for shortening the total action time of a device by exciting a relay of the device in advance. The method provided by the invention comprises the following concrete steps: the device issues a command to the relay, wherein the command includes a start command and an action command, the start command is only used for exciting the relay in advance but not enabling the relay to act, and the action command is used for exciting the relay and enabling the relay to act; when the device detects that an input signal exceeds a normal work value, the start command is issued to the relay; and when the device detects that the input signal exceeds a set value, the action command is issued to the relay after a set time delay if action logic judgment is satisfied. Compared with the traditional device, the total action time of the device does not include the inherent excitation time of the relay, thereby ensuring that the saved total action time is approximate to the inherent excitation time of the relay. Thus, the method provided by the invention can shorten the total action time of the device.

Description

A kind of intelligent apparatus method of overall operate time that shortens

Technical field

The present invention relates to electrical technology field, the method for specifically a kind of shortening its overall operate time that can be applicable to intelligent apparatus in the control system.

Background technology

Intelligent apparatus sends the order of excitation usually in the control system by CPU, and relay is carried out excitation, makes the contact of relay move, and with functions such as realization controls, the excitation time that relay needs is generally 5 milliseconds, 10 milliseconds, even reaches 15 milliseconds.

Overall operate time of the finger device of device surpasses set point from detecting input signal, to the total time between the action of relay contact, promptly comprise time that device detects time, device that input signal surpasses set point and carry out the set time-delay of time, device that action logic judges, install to time of its relay excitation etc. free summation.

Wherein: device detects time that time, device that input signal surpasses set point carry out the set time-delay of time, device that action logic judges, install the needed times such as its relay excitation are difficult to shorten, usually the technical staff spends very big energy to carry out the time that action logic is judged to shorten device, to improve responsiveness, carry out the time of action logic judgement and improve device reliability normally conflicting but shorten device.

Relay to device applies the voltage higher than rated operational voltage, can improve the responsiveness of relay, to shorten device to the needed time of its relay excitation, but can shorten the coil life-span of relay, and to jump may appear in relay tip, causes arcing, shortens the life-span of relay tip, and make that action is unreliable, this method is not recommended by relay producer.

Summary of the invention

Mention the used relay of device in the background technology and need excitation time for solving existing problem in the above-mentioned prior art, considering, be generally 5 milliseconds, 10 milliseconds, even reach 15 milliseconds.The present invention proposes to shift to an earlier date excitation to the relay of device, to shorten the overall operate time of device, it is characterized in that, may further comprise the steps:

1) device says the word to relay, promptly applies level to relay, is divided into starting command and action command, and starting command only is used for shifting to an earlier date excitation to relay, do not cause the actuating of relay, and action command is used for to relay excitation, makes the actuating of relay;

2) the device input signal is used for logic determines;

3) after device detects input signal and surpasses the operate as normal value, just send starting command to relay;

4) surpass set point when device detects input signal, after the action logic judgement is satisfied, after the time-delay of setting, just send action command to relay, described set point is greater than the operate as normal value;

5) when relay is about to excitation and finishes, when promptly relay tip is about to move, be divided into two kinds of situations:

A) this moment, device sent action command to relay, and continuous excitation then is until the actuating of relay;

B) this moment, device did not also send action command to relay, then by to relay degaussing and excitation repeatedly, make relay both not reach contact and move needed magnetization energy, can misoperation, do not discharge the magnetization energy that is accumulated again, be divided into two kinds of situations this moment again:

I. after the degaussing repeatedly and excitation of device through the intrinsic excitation time that surpasses several relays, device has sent the action command to relay, and continuous excitation then is until the actuating of relay;

Ii. after the degaussing repeatedly and excitation of device process above the intrinsic excitation time of several relays, device does not still send the action command to relay, in order to prevent from frequently to give relay excitation, shorten the useful life of relay, then stop to relay excitation, treat that device detects input signal and surpasses set point, after the action logic judgement is satisfied, and after the time-delay of setting through the intrinsic excitation time of having deducted relay, send action command to relay, continuous excitation is until the actuating of relay.

Conventional apparatus just begins to relay excitation after sending action command, and promptly traditional device says the word to relay, starting command and action command is united two into one, so the intrinsic excitation time that comprises relay overall operate time of device.

In the present invention, the time of sending the action command needs when device, (promptly device detected the time that input signal surpasses set point, add that device carries out the time that action logic is judged, add the time of the set time-delay of device) greater than the intrinsic excitation time of relay, compare with conventional apparatus, adopt the present invention, device can save overall operate time approach relay intrinsic excitation time, promptly do not comprise the intrinsic excitation time of relay Zhuan Zhi overall operate time.

Therefore the overall operate time of traditional device is than the intrinsic excitation time that has more relay overall operate time of device of the present invention.

This shows, adopt method of the present invention can shorten the overall operate time of device.

Shift to an earlier date excitation to relay,, be equivalent to the start of a race from afar in the dash match, make when starting pistol rings, can go out starting line at faster speed to shorten the operate time of device.

Shorten the overall operate time of device, have a lot of benefits, for example can excise fault fast, avoid fault to enlarge,, utilize the time that saves perhaps for the complicated apparatus function,, the action logic that increases device is differentiated the time, to improve the reliability of device action.

Instantiation

Contrast the overall operate time of traditional device and the overall operate time of device of the present invention with the form of scheming below.

Fig. 1 is the action situation of traditional device and the excitation situation of relay.

Fig. 2 is the action situation of device of the present invention and the excitation situation of relay.

In Fig. 1 and Fig. 2, relay excitation is given in " 1 " expression, and the relay degaussing is given in " 0 " expression.Suppose that relay needs the excitation time in five time intervals, its contact could move." 1 " or " 0 " all respectively takies a time interval among the figure.

In Fig. 2, give four time intervals of relay excitation earlier, this moment, device did not also send action command, sent degaussing and excitation level repeatedly then for relay, represented with a plurality of " 0 " and " 1 " among the figure, make relay both not reach contact and move needed magnetization energy, can misoperation, do not discharge the magnetization energy that is accumulated again, after device sends action command, give time interval of relay excitation again, make the actuating of relay.As seen from Figure 2, relay can shift to an earlier date four time interval actions, i.e. be four time intervals the overall operate time that the present invention saves.

Description of drawings

Fig. 1 is the action situation and the relay excitation situation of traditional device.

Fig. 2 is the action situation of device of the present invention and the excitation situation of relay.By among Fig. 2 as can be seen, relay can shift to an earlier date the action of four time intervals.

Claims (1)

1. one kind is shortened the intelligent apparatus method of overall operate time, shifts to an earlier date excitation by the relay of giving device, to shorten the overall operate time of device, it is characterized in that, may further comprise the steps:

1) device says the word to relay, promptly applies level to relay, is divided into starting command and action command, and starting command only is used for shifting to an earlier date excitation to relay, do not cause the actuating of relay, and action command is used for to relay excitation, makes the actuating of relay;

2) the device input signal is used for logic determines;

3) after device detects input signal and surpasses the operate as normal value, just send starting command to relay;

4) surpass set point when device detects input signal, after the action logic judgement is satisfied, after the time-delay of setting, just send action command to relay, described set point is greater than the operate as normal value;

5) when relay is about to excitation and finishes, when promptly relay tip is about to move, be divided into two kinds of situations:

A) this moment, device sent action command to relay, and continuous excitation then is until the actuating of relay;

B) this moment, device did not also send action command to relay, then by to relay degaussing and excitation repeatedly, make relay both not reach contact and move needed magnetization energy, can misoperation, do not discharge the magnetization energy that is accumulated again, be divided into two kinds of situations this moment again:

I. after the degaussing repeatedly and excitation of device through the intrinsic excitation time that surpasses several relays, device has sent the action command to relay, and continuous excitation then is until the actuating of relay;

Ii. after the degaussing repeatedly and excitation of device process above the intrinsic excitation time of several relays, device does not still send the action command to relay, in order to prevent from frequently to give relay excitation, shorten the useful life of relay, then stop to relay excitation, treat that device detects input signal and surpasses set point, after the action logic judgement is satisfied, and after the time-delay of setting through the intrinsic excitation time of having deducted relay, send action command to relay, continuous excitation is until the actuating of relay.

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