CN104347313A - Realization method of relay driving module applied to elevator control system - Google Patents
Realization method of relay driving module applied to elevator control system Download PDFInfo
- Publication number
- CN104347313A CN104347313A CN201310342438.3A CN201310342438A CN104347313A CN 104347313 A CN104347313 A CN 104347313A CN 201310342438 A CN201310342438 A CN 201310342438A CN 104347313 A CN104347313 A CN 104347313A
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- CN
- China
- Prior art keywords
- signal
- relay
- driving module
- control
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
- H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit
- H01H47/005—Safety control circuits therefor, e.g. chain of relays mutually monitoring each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
Abstract
The invention discloses a realization method of a relay driving module applied to an elevator control system. The realization method is mainly explained in two aspects including control signals and conversion circuits. A measure of avoiding relay false operation under the condition that program fleet occurs or the control system is always in the reset state by a certain reason is provided for the control system, so that the safety and the reliability of the elevator control are enhanced.
Description
Technical field
The present invention relates to the implementation method of the relay driving module of apparatus for controlling elevator.
Background technology
According to investigations, China at present elevator has broken through 2,000,000, and elevator has entered ordinary populace life, the closely bound up and One's name is legion with resident living.Elevator reliability decides its fault even probability of accident generation, decides the stability of elevator.
In apparatus for controlling elevator, control signal exports carries out basically by relay, and such as main control computer plate frequency converter rotating mode signal output is exactly that relay exports.Control reliability determines the reliability of Signal transmissions.In conventional design, operation principle is as shown in accompanying drawing _ 1, relay K 1 drive by control end Ctr rice after R1 current limliting by the conducting of triode Q1 control relay K1 coil one end and negative pole (common also have the conducting controlled with positive pole), the relay K 1 coil other end then connects and connects positive source (common also have connection to connect power cathode).As long as control end Ctr has useful signal, relay will action.When control MCU such as program fleet or be in reset mode under some particular cases always, likely can there is significant level in Ctr end, cause relay K 1 misoperation.Interference cannot be eliminated, and the Electro Magnetic Compatibility improving product could improve the reliability of product.Can be avoided interference by increase control signal and raising control Control timing sequence and cause misoperation.
Summary of the invention
The invention provides a kind of implementation method being applied to the relay driving module of apparatus for controlling elevator, its feature in, comprising:
Control signal: control signal is a level signal and a square-wave signal.
Change-over circuit: by effective control signal Ctr1 and effectively control signal Ctr2, can effective control relay switch after change-over circuit.
Beneficial effect of the present invention
From described control mode, the implementation method that the present invention relates to the relay driving module of apparatus for controlling elevator improves for the timing of signalizing activity and the requirement of continuation.Electromagnetic Compatibility is also had and promotes greatly; in actual applications; the interference signal that electromagnetic interference produces is nearly all in short-term; described control mode ensures under interference signal for the continuation of signal; the probability that relay misoperation is done is greatly few; other safeguard measure of comprehensive apparatus for controlling elevator, the reliable and secure operation for elevator is guaranteed from source.
Accompanying drawing illustrates:
Fig. 1 is conventional design principles figure
Fig. 2 is design principle figure of the present invention
Embodiment
One, control signal
As shown in Figure 2, control end Ctr1 is effectively a level signal (this circuit is that high level is effective), and control end Ctr1 useful signal is an adjustable pulse width signal.When control end Ctr1 and control end Ctr2 is useful signal, relay coil access both ends of power produces drive current, the actuating of relay.
Two, change-over circuit
As shown in Figure 2, control end Ctr1 level signal is connected to triode Q2 base stage through current-limiting resistance R3, controls the conducting of optocoupler U1 input and power supply vcc with rice; Control end Ctr2 adjustable pulse width square-wave signal after current-limiting resistance R1 and capacitance C1 by being converted to level signal (D1, D2 are protection device) after electric capacity C2 filtering; This level signal controls the conducting on optocoupler U1 and power supply ground by triode Q2; The conducting that optocoupler output signal is held by being connected to Darlington triode Q3 control relay coil and relay driving power V-after current-limiting resistance R4; The relay coil other end is directly connected with driving power positive pole V+, and D3 plays afterflow effect.
Claims (4)
1. be applied to an implementation method for the relay driving module of apparatus for controlling elevator, comprise control signal and change-over circuit thereof.It is characterized in that described control signal is by a level signal and an adjustable pulse width square-wave signal organic assembling; Described control circuit comprises square-wave signal to be converted to after level signal through block isolating circuit and charging circuit and reacts on isolation optocoupler with level controling signal one; Described optocoupler output signal carrys out the conducting of control relay coil and power cathode by Darlington triode.
2. according to a kind of implementation method being applied to the relay driving module of apparatus for controlling elevator according to claim 1, it is characterized in that: utilize square-wave signal and level signal combination control relay, greatly strengthen circuit anti-interference ability, reduce relay misoperation and do.
3. according to a kind of implementation method being applied to the relay driving module of apparatus for controlling elevator according to claim 1, it is characterized in that: in described change-over circuit, capacitance ensures when input signal is fixed signal, and change-over circuit is without effective output.To fly or system is in reset mode for a certain reason when control system is run for a certain reason, it controls output and is generally fixed level, and capacitance ensure that relay is still in default conditions under above-mentioned abnormal conditions, can not have misoperation.
4. according to a kind of implementation method being applied to the relay driving module of apparatus for controlling elevator according to claim 1, it is characterized in that: described control circuit is through light-coupled isolation rear drive relay, and the system that enhances is anti-dry around ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342438.3A CN104347313A (en) | 2013-08-08 | 2013-08-08 | Realization method of relay driving module applied to elevator control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342438.3A CN104347313A (en) | 2013-08-08 | 2013-08-08 | Realization method of relay driving module applied to elevator control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104347313A true CN104347313A (en) | 2015-02-11 |
Family
ID=52502712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310342438.3A Pending CN104347313A (en) | 2013-08-08 | 2013-08-08 | Realization method of relay driving module applied to elevator control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104347313A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473028A (en) * | 2017-07-17 | 2017-12-15 | 江苏科技大学 | A kind of gateway doorway machine, which is swiped the card, opens the door and calls the circuit and implementation method of elevator |
| CN107555297A (en) * | 2017-07-25 | 2018-01-09 | 於铉 | A kind of elevator and circuit and implementation method of illumination of linking that opened the door based on the POS |
| CN111510125A (en) * | 2020-04-26 | 2020-08-07 | 宁波格立光电科技有限公司 | High-reliability isolated high-voltage switch circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201877363U (en) * | 2010-12-16 | 2011-06-22 | 国网电力科学研究院 | Relay drive circuit based on current transmission and transformation isolation technology |
| CN202332733U (en) * | 2011-11-10 | 2012-07-11 | 湖南南车时代电动汽车股份有限公司 | Switching value isolation circuit for relay |
| CN202616142U (en) * | 2012-05-14 | 2012-12-19 | 美的集团有限公司 | Relay control circuit |
| CN203118870U (en) * | 2013-03-28 | 2013-08-07 | 嘉兴市英力电子科技有限公司 | Improved relay control circuit |
-
2013
- 2013-08-08 CN CN201310342438.3A patent/CN104347313A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201877363U (en) * | 2010-12-16 | 2011-06-22 | 国网电力科学研究院 | Relay drive circuit based on current transmission and transformation isolation technology |
| CN202332733U (en) * | 2011-11-10 | 2012-07-11 | 湖南南车时代电动汽车股份有限公司 | Switching value isolation circuit for relay |
| CN202616142U (en) * | 2012-05-14 | 2012-12-19 | 美的集团有限公司 | Relay control circuit |
| CN203118870U (en) * | 2013-03-28 | 2013-08-07 | 嘉兴市英力电子科技有限公司 | Improved relay control circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473028A (en) * | 2017-07-17 | 2017-12-15 | 江苏科技大学 | A kind of gateway doorway machine, which is swiped the card, opens the door and calls the circuit and implementation method of elevator |
| CN107473028B (en) * | 2017-07-17 | 2019-09-27 | 江苏科技大学 | A kind of entrance doorway machine, which is swiped the card, enabling and calls the circuit and implementation method of elevator |
| CN107555297A (en) * | 2017-07-25 | 2018-01-09 | 於铉 | A kind of elevator and circuit and implementation method of illumination of linking that opened the door based on the POS |
| CN111510125A (en) * | 2020-04-26 | 2020-08-07 | 宁波格立光电科技有限公司 | High-reliability isolated high-voltage switch circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |