CN202627775U - Control circuit of error interface commands of filter signal system and shield door system - Google Patents
Control circuit of error interface commands of filter signal system and shield door system Download PDFInfo
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- CN202627775U CN202627775U CN2012202483578U CN201220248357U CN202627775U CN 202627775 U CN202627775 U CN 202627775U CN 2012202483578 U CN2012202483578 U CN 2012202483578U CN 201220248357 U CN201220248357 U CN 201220248357U CN 202627775 U CN202627775 U CN 202627775U
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- door
- safety relay
- control circuit
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Abstract
The utility model relates to a control circuit of error interface commands of a filter signal system and a shield door system; the control circuit comprises a door-opening relay which is serially connected in a door-opening circuit and a door-closing relay which is serially connected in a door-closing circuit; the normally open contact of the door-opening relay is serially connected in the working circuit of a safe relay I, and the normally open contact of the door-closing relay is serially connected in the working circuit of a safe relay II; the safe relay I and the safe relay II are connected with a signal filter circuit; and the signal filter circuit is connected with a signal output circuit. According to the control circuit of error interface commands of the filter signal system and the shield door system, which adopts the technical scheme, the safe relay circuit is adopted, the connection is realized by a hard wire, ineffective error signal portfolios are filtered, and the safety of signals is ensured. In addition, a safe relay indicating circuit is also additionally arranged, so that the observation is convenient. Furthermore, the control circuit of error interface commands of the filter signal system and the shield door system has the characteristics of low cost, high reliability and strong real-time performance.
Description
Technical field
The utility model relates to a kind of control circuit, specifically a kind of being applied in the subway shield door system, the control circuit of filter false interface command.
Background technology
The subway signal system is through sending the screen door that is combined to of two kinds of orders such as " order of opening the door ", " order of closing the door ", thereby can realize the action of opening the door or close the door of shield door.These two kinds of orders can be combined to 4 kinds of forms, and two kinds of forms (1,0), (0 are wherein arranged; 1) be effectively to open the door or close the door order; But in these two kinds of compound command handoff procedures, (0,0) and (1 can appear; 1) be invalid command in combination, these invalid combination may cause the misoperation of shield door.And at present for the processing of these invalid signals, most of manufacturers all adopt programmable logic controller or other controllers to realize that through software programming safety is low.
Summary of the invention
The purpose of the utility model provides a kind of control circuit that filters subway signal system and the order of screen door wrong interface.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The control circuit of a kind of trap signal system and the order of screen door wrong interface; It comprises open the door relay and the closed relay that is connected in the gate circuit of pass that is connected in the circuit that opens the door; The relay normally open contact that opens the door is connected in the operating circuit of safety relay I, and the closed relay constant open contact is connected in the operating circuit of safety relay II; And the safety relay I is connected with the filtering signals circuit with the safety relay II, and the filtering signals circuit connects signal output apparatus.
Described filtering signals circuit is made up of the branch road of two parallel connections; Wherein, safety relay I first constant open contact, safety relay II first constant close contact and safety relay III are connected in series and constitute a branch road; Safety relay I normally-open normally-close commutator, safety relay II normally-open normally-close commutator and safety relay III first constant open contact are connected in series and constitute a branch road; And safety relay III second constant open contact is arranged in the signal output apparatus.
Adopt the utility model of technique scheme, adopt the safety relay circuit, connect, filtered out invalid rub-out signal combination, guaranteed the safety of signal with hardwired fashion.In addition, also added the safety relay indicating circuit, it is convenient to observe.In addition, it is low that the utility model also has a cost, and reliability is high, real-time characteristics.
Description of drawings
Fig. 1 is the overall operation schematic diagram of the utility model.
Fig. 2 is the fundamental diagram of the utility model under the normal door signal (1,0).
Fig. 3 is normal gate signal (0, the 1) fundamental diagram of the utility model down that closes.
Fig. 4 is the fundamental diagram of the utility model under error-logic (1, the 1) signal.
The specific embodiment
As shown in Figure 1; The control circuit of a kind of trap signal system and the order of screen door wrong interface; It comprises open the door relay K A4 and the closed relay KA5 that is connected in the gate circuit of pass that is connected in the circuit that opens the door; The relay normally open contact that opens the door is connected in the operating circuit of safety relay I KA1, and the closed relay constant open contact is connected in the operating circuit of safety relay II KA2; And safety relay I KA1 is connected with the filtering signals circuit with safety relay II KA2, and the filtering signals circuit connects signal output apparatus.
The filtering signals circuit is made up of the branch road of two parallel connections; Wherein, the safety relay I first constant open contact KA1-1, the safety relay II first constant close contact KA2-1 and safety relay III KA3 are connected in series and constitute a branch road; Safety relay I normally-open normally-close commutator KA1-2, safety relay II normally-open normally-close commutator KA2-2 and the safety relay III first constant open contact KA3-1 are connected in series and constitute a branch road; And the safety relay III second constant open contact KA3-2 is arranged in the signal output apparatus.
The operating principle of the utility model is: as shown in Figure 1, signal system is sent, and open the door order Open and the order Close that closes the door all is transferred to open the door the relay K A4 and the closed relay KA5 of screen door through the dry contact mode.Open the door relay K A4 and the closed relay KA5 of signal system controlling the power supply at safety relay I KA1 and safety relay II KA2 two ends respectively through double-break.The filtering signals circuit is a logic processing circuit, accomplishes the processing to the signal system invalid combination, exports opening-closing door signal cmd at last.
As shown in Figure 2, when signal system is sent normal enabling signal combination (1,0), safety relay I KA1 action, safety relay II KA2 attonity.The constant close contact that is the safety relay I all breaks off, and constant open contact is all closed; Safety relay II constant close contact is still closed, and constant open contact breaks off, and can get safety relay III KA3 action thus, and the screen door interface has the output of VCC voltage, makes shielding every body keep door opening state or continue to accomplish the action of opening the door.
In like manner, as shown in Figure 3, can close gate signal (0,1) combination down, the output of screen door interface no-voltage makes shielding every body keep the state of closing the door or continue to accomplish the action of closing the door.
As shown in Figure 4, when signal system was sent abnormal logic signal (1,1), safety relay I KA1 and safety relay II KA2 all moved.Because relay is parallel control; After safety relay I KA1 and safety relay II KA2 action; Before the safety relay III KA3 action, this moment, the constant open contact of safety relay I and safety relay II was closed, if safety relay III KA3 was operating state originally; Safety relay III KA3 and KA1, KA2 form the loop so, and safety relay III KA3 continues as operating state; If safety relay III KA3 was non-action status originally, this loop disconnection safety relay III KA3 still is a non-action status so.
In the time of in like manner can getting signal system and send abnormal logic signal (0,0), system interface output still keeps original output state.
Claims (2)
1. the control circuit of trap signal system and screen door wrong interface order; It is characterized in that: it comprises the relay that opens the door (KA4) that is connected in the circuit that opens the door and is connected on the closed relay (KA5) that closes in the gate circuit; The relay normally open contact that opens the door is connected in the operating circuit of safety relay I (KA1), and the closed relay constant open contact is connected in the operating circuit of safety relay II (KA2); And safety relay I (KA1) is connected with the filtering signals circuit with safety relay II (KA2), and the filtering signals circuit connects signal output apparatus.
2. the control circuit of trap signal system according to claim 1 and the order of screen door wrong interface, it is characterized in that: described filtering signals circuit is made up of the branch road of two parallel connections; Wherein, safety relay I first constant open contact (KA1-1), safety relay II first constant close contact (KA2-1) and safety relay III (KA3) are connected in series and constitute a branch road; Safety relay I normally-open normally-close commutator (KA1-2), safety relay II normally-open normally-close commutator (KA2-2) and safety relay III first constant open contact (KA3-1) are connected in series and constitute a branch road; And safety relay III second constant open contact (KA3-2) is arranged in the signal output apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202483578U CN202627775U (en) | 2012-05-30 | 2012-05-30 | Control circuit of error interface commands of filter signal system and shield door system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202483578U CN202627775U (en) | 2012-05-30 | 2012-05-30 | Control circuit of error interface commands of filter signal system and shield door system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627775U true CN202627775U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202483578U Expired - Lifetime CN202627775U (en) | 2012-05-30 | 2012-05-30 | Control circuit of error interface commands of filter signal system and shield door system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627775U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604432A (en) * | 2016-01-29 | 2016-05-25 | 广东正业科技股份有限公司 | Laser processing equipment and system for controlling automatic door thereof |
| CN108388160A (en) * | 2018-04-20 | 2018-08-10 | 深圳市方大自动化系统有限公司 | A kind of general PEDC logics module of prolongable standard type |
| CN112649722A (en) * | 2020-12-30 | 2021-04-13 | 卡斯柯信号有限公司 | Fault monitoring method for interface circuit of flood gate and signal system |
-
2012
- 2012-05-30 CN CN2012202483578U patent/CN202627775U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604432A (en) * | 2016-01-29 | 2016-05-25 | 广东正业科技股份有限公司 | Laser processing equipment and system for controlling automatic door thereof |
| CN105604432B (en) * | 2016-01-29 | 2017-07-21 | 广东正业科技股份有限公司 | Laser process equipment and its automatic door control system |
| CN108388160A (en) * | 2018-04-20 | 2018-08-10 | 深圳市方大自动化系统有限公司 | A kind of general PEDC logics module of prolongable standard type |
| CN108388160B (en) * | 2018-04-20 | 2023-10-20 | 方大智源科技股份有限公司 | Expandable standard type universal PEDC logic module |
| CN112649722A (en) * | 2020-12-30 | 2021-04-13 | 卡斯柯信号有限公司 | Fault monitoring method for interface circuit of flood gate and signal system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |