CN110007590A - The connection switching circuit of TT&C system and measured target and simulator - Google Patents
The connection switching circuit of TT&C system and measured target and simulator Download PDFInfo
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- CN110007590A CN110007590A CN201910303182.2A CN201910303182A CN110007590A CN 110007590 A CN110007590 A CN 110007590A CN 201910303182 A CN201910303182 A CN 201910303182A CN 110007590 A CN110007590 A CN 110007590A
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- switching
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
- G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention provides the connection switching circuit of a kind of TT&C system and measured target and simulator, the circuit includes: state switch, two switching relays and the relay group being made of the switching relay of several parallel connections, the present invention utilizes normally opened, normal-closed end the switching of the single-pole double throw contact of electromagnetic relay, it realizes being quickly converted for target and simulator state during computer testing system operates with, solves computer testing system by manual operation control cable and aims of systems and simulator state transfer problem are carried out to the grafting of measured target and simulator.
Description
Technical field
The present invention relates to general target/simulator conversion equipments, more particularly to a kind of TT&C system and measured target
With the connection switching circuit of simulator, device and method.
Background technique
Important component of the target simulator as computer measurement and control system is mainly responsible for substitution controlled object access system
System cooperates self-checking, periodic maintenance, fault location or the simulated training etc. of completion system.
Currently, when common computer measurement and control system connecting object carries out state conversion between target and simulator,
Operator is needed to manually complete system control cable to the grafting conversion work of measured target and simulator.This operation often exists
It is time-consuming, laborious the problems such as, especially for electric interfaces complexity, number of signals is more, there is frequent test mode conversion requirements
System, the control access transfer problem of target and simulator seems especially prominent.
Summary of the invention
When carrying out state conversion to solve current computer measurement and control system connecting object between target and simulator,
It is both needed to the problem of operator manually completes grafting conversion work of the system control cable to measured target and simulator, the present invention
A kind of TT&C system and measured target and the connection switching circuit of simulator, device and method are provided, electromagnetic relay is utilized
Normally opened, normal-closed end the switching of single-pole double throw contact, target and simulator during realization computer testing system operates with
State is quickly converted, and solves grafting of the computer testing system by manual operation control cable to measured target and simulator
Carry out aims of systems and simulator state transfer problem.
In certain embodiments, a kind of connection switching circuit of TT&C system and measured target and simulator, comprising: state
Switching switch, two switching relays and the relay group being made of the switching relay of several parallel connections；
Each switching relay includes an on-off switch, and two switching relays are connected in parallel with each other
Between the state switch and connecting node, and one can be selected by state switch and be connected to external power supply, and then control
Make corresponding on-off switch closure；
The on-off switch closure of one of them switching relay is connected to the relay group with the connecting node；
Each switching relay includes a single-pole double-throw switch (SPDT), two stationary contacts point of each single-pole double-throw switch (SPDT)
Not Lian Jie simulator and measured target, movable contact connect computer measurement and control system.
In certain embodiments, the circuit further include:
With one of first state display lamp in parallel of described two switching relays；And/or switch with this two
Another second state display lamp in parallel of relay.
In certain embodiments, the circuit further includes the fault detection module connecting with the connecting node, for examining
Survey whether the switching circuit occurs open circuit fault.
In certain embodiments, each switching relay further includes an on-off switch, and the switching relay is logical
When electric, the on-off switch of the switching relay is opened, the movable contact of single-pole double-throw switch (SPDT) and one of stationary contact of the switch
Connection, the fault detection module include:
Fault detection relay, the fault detection relay include an on-off switch, trouble light, another switching after
The on-off switch of the on-off switch of electric appliance and each switching relay；
The trouble light is in parallel with the fault detection relay, and the on-off switch string with the fault detection relay
Connection；
The on-off switch of each switching relay is serially connected and is connected to connecting node and the power transfer relay
Between；
The on-off switch of this another switching relay and the on-off switch for each of being serially connected the switching relay
It is arranged in parallel.
In certain embodiments, the on-off switch is single-pole single-throw switch (SPST).
In certain embodiments, the switching circuit further include:
Power switch, for controlling the connection of the circuit and external power supply.
In certain embodiments, the connection switching apparatus of a kind of TT&C system and measured target and simulator, including it is as above
The switching circuit.
In certain embodiments, a method of utilizing switching circuit as described above, comprising:
State of a control switches switching to first state, so that the on-off switch of one of switching relay is because of correspondence
Switching relay power and be closed, and then make the relay group single-pole double-throw switch (SPDT) movable contact and one of stationary contact
Point connection；
State of a control switches switching to the second state, so that the on-off switch of another switching relay is because corresponding
Switch relay power and be closed, and then connects the movable contact of the single-pole double-throw switch (SPDT) of the relay group and another stationary contact
It connects.
Beneficial effects of the present invention are as follows:
The present invention provides a kind of TT&C system and measured target and the connection switching circuit of simulator, device and method, benefit
With normally opened, normal-closed end the switching of the single-pole double throw contact of relay, mesh during realization computer testing system operates with
Mark is quickly converted with simulator state, solves computer testing system by manual operation control cable to measured target and mould
The grafting of quasi- device carries out aims of systems and simulator state transfer problem, improves the usability of system.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows the structure of the connection switching circuit of TT&C system and measured target and simulator in the embodiment of the present invention
Schematic diagram.
Fig. 2 shows the connections of TT&C system in the embodiment of the present invention and measured target and simulator to switch schematic diagram.
The connection switching method process that Fig. 3 shows TT&C system and measured target and simulator in the embodiment of the present invention is shown
It is intended to.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
The various sectional views for disclosing embodiment according to the present invention are shown in the attached drawings.These figures are not drawn to scale
, wherein some details are magnified for the purpose of clear expression, and some details may be omitted.It is shown in the drawings
Various regions, the shape of layer and relative size, positional relationship between them are merely exemplary, in practice may be due to system
It makes tolerance or technical restriction and is deviated, and those skilled in the art may be additionally designed as required with not similar shape
Shape, size, the regions/layers of relative position.
Currently, when common computer measurement and control system connecting object carries out state conversion between target and simulator,
Operator is needed to manually complete system control cable to the grafting conversion work of measured target and simulator.This operation often exists
It is time-consuming, laborious the problems such as, especially for electric interfaces complexity, number of signals is more, there is frequent test mode conversion requirements
System, the control access transfer problem of target and simulator seems especially prominent.
When carrying out state conversion to solve current computer measurement and control system connecting object between target and simulator,
It is both needed to the problem of operator manually completes grafting conversion work of the system control cable to measured target and simulator, the present invention
A kind of TT&C system and measured target and the connection switching circuit of simulator, device and method are provided, the hilted broadsword of relay is utilized
Normally opened, normal-closed end the switching of double-throw contact, target and simulator state during realization computer testing system operates with
Be quickly converted, solve computer testing system and the grafting of measured target and simulator carried out by manual operation control cable
Aims of systems and simulator state transfer problem.
Referring to Fig. 1 to Fig. 3, the present invention is described in detail.
First aspect present invention provides the connection switching circuit of a kind of TT&C system and measured target and simulator, specific to wrap
It includes: state switch S2, two switching relays (K1 and K2) and the switching relay (K4 to Kn) group by several parallel connections
At relay group.
As shown in connection with fig. 1, each switching relay (K1 and K2) includes an on-off switch (on-off switch of K1
The on-off switch K2_1 of K1_1, K2), and two switching relays (K1 and K2) are connected in parallel with each other and switch in the state
Between switch S2 and connecting node P, and can be selected by state switch S2 one with external power supply (such as diagram in+28V electricity
Source) connection, and then control corresponding on-off switch (the on-off switch K1_1, the on-off switch K2_1 of K2 of K1) closure；Wherein one
The on-off switch K2_1 closure of a switching relay K2 is connected to the relay group with the connecting node P；Each institute
Stating switching relay, (K4 to Kn) includes that (K4_2 to Kn_2), (K4_2 is extremely for each single-pole double-throw switch (SPDT) for a single-pole double-throw switch (SPDT)
Kn_2 two stationary contacts) are separately connected simulator and measured target, and movable contact connects computer measurement and control system.
Further, in order to make the switching circuit that there is fault indication function, it can be set and connect with the connecting node
The fault detection module for meeting P, for detecting whether the switching circuit occurs open circuit fault.
Specifically, (K4 to Kn) further includes that (K4_1 is described to Kn_1) for an on-off switch to each switching relay
(when K4 to Kn) is powered, (the on-off switch K4_1 to Kn_1) of K4 to Kn) is opened the switching relay switching relay, and hilted broadsword is double
(movable contact of K4_2 to Kn_2) is connect throw switch with one of stationary contact of the switch, and the fault detection module includes:
Fault detection relay K3, the fault detection relay include an on-off switch (K3_1), trouble light L4, another switching
The on-off switch K1_1 of relay K1 and each switching relay (on-off switch (K4_2 to Kn_2) of K4 to Kn)；
The trouble light L4 is in parallel with the fault detection relay K3, and goes here and there with the on-off switch K3_1 of fault detection relay K3
Connection；((K4_2 is serially connected to Kn_2) and is connected to connecting node P the on-off switch of K4 to Kn) each switching relay
Between the power transfer relay K3；It the on-off switch K1_1 of this another switching relay K1 and each of is serially connected described
((K4_2 to Kn_2) is arranged in parallel the on-off switch of K4 to Kn) switching relay.
In the present invention, K1_1, K2_1, K3_1, K4_1, K5_1, K6_1 ... (and so on), Kn_1 be respectively relay
K1, K2, K3, K4, K5, K6 ... (and so on), the on-off switch of Kn, K4_2, K5_2, K6_6 ... (and so on), Kn_2
Respectively relay K4, K5, K6 ... (and so on), the single-pole double-throw switch (SPDT) of Kn.When relay group no power, K4_1,
K5_1, K6_1 ... (and so on), the original state of Kn_1 be closed state, K4_2, K5_2, K6_6 ... (and so on),
Kn_2 is switched to the state in Fig. 2, i.e. simulator is connect with TT&C system；When relay group is powered, K4_1, K5_1, K6_
1 ... (and so on), Kn_1 switch to opening state, K4_2, K5_2, K6_6 ... (and so on), Kn_2 be switched to it is tested
Target is connect with TT&C system.In addition, corresponding K1_1, K2_1 are off-state when K1 or K2 no power, when K1 or K2 is powered
When, corresponding K1_1, K2_1 are closed state.Since relay group controls whether to be powered by K2_1, it can pass through
The connection of target and simulator and TT&C system is realized in the combination of K2_1 and relay group.
In some embodiments, power supply indicator L1 can be set, be used to indicate whether circuit is powered.
Further, the circuit further include: first in parallel with described two switchings one of them (K1) of relay
State display lamp (L2)；And/or second state display lamp (L3) in parallel with another (K2) of two switching relays.
The state currently switched, i.e. measured target and TT&C system phase can be shown by two mode display lamps in this way
Connection or simulator are connected with TT&C system.
Of course, it is possible to which three gears are arranged on state switch, the embodiment in the application, first state can determine
Justice is the state that measured target is connected with TT&C system, i.e., K1 relay state switched on, the second state can be defined as
The state that simulator is connected with TT&C system, i.e., K2 relay is by the state of conductor.Therefore three gears are respectively: the first shape
State gear, the second state gear and neutral position, when state switch is in neutral position, i.e., entire circuit not with external electrical
Source is connected to, and then all relay recovery original states, the original state of all relays in the embodiment of the present application, as K1
K1_1 disconnect, the K2_1 of K2 is disconnected, and the K3_1 closure of K3, the K4_1 to Kn_1 of K4-Kn is disconnected, the K4_2 to Kn_2 of K4-Kn
Switch to state as shown in Figure 2.
In some embodiments, the switching circuit further include: power switch S1, for controlling the circuit and external electrical
The connection in source.
In some embodiments, above-mentioned on-off switch is single-pole single-throw switch (SPST).
The course of work of the switching circuit in above-described embodiment is described in detail below.
1) power switch S1 in the initial state, is pressed, power supply indicator L1 is bright, and malfunction indicator lamp L4 is bright；2) turn shape
State switch S2, if being placed in simulator shelves, control relay K1, K3 movement, power supply indicator L1 continues bright, simulator state instruction
Lamp L2 is bright, and malfunction indicator lamp L4 is bright, computer measurement and control system observing and controlling port, including channel 1, channel 2, channel 3 ... channel n-3
It is transformed into simulator state；3) turn status switch S2, if being placed in target shift, control relay K2, K3, switching relay K4,
K5, K6, Kn movement, power supply indicator L1 is lasting bright, and dbjective state indicator light L3 is bright, and malfunction indicator lamp L4 is bright, computer measurement and control
System monitoring port, including channel 1, channel 2, channel 3 ... channel n-3 converting into target state；4) task terminates, turn shape
State switch S2 is placed in neutral gear, and all relay recovery original states, power supply indicator L1 is lasting bright, and malfunction indicator lamp L4 is bright；5)
Disconnecting power switch S1, all indicator light off.
Obviously, detailed description through the foregoing embodiment, could be aware that, the switching circuit that first aspect present invention provides,
Using normally opened, normal-closed end the switching of the single-pole double throw contact of relay, during realizing that computer testing system operates with
Target is quickly converted with simulator state, solve computer testing system by manual operation control cable to measured target with
The grafting of simulator carries out aims of systems and simulator state transfer problem, improves the usability of system.
Further, second aspect of the present invention provides the connection switching dress of a kind of TT&C system and measured target and simulator
It sets, which includes the switching circuit that above-described embodiment refers to, based on reason same as the previously described embodiments, second party of the present invention
The switching device that face provides realizes computer testing system using normally opened, normal-closed end the switching of the single-pole double throw contact of relay
Target and simulator state are quickly converted during system operates with, and are solved computer testing system and are controlled by manual operation
Cable carries out aims of systems and simulator state transfer problem to the grafting of measured target and simulator, improves the use of system
Property.
Further, third aspect present invention provides a kind of method switched over using above-mentioned switching circuit, specifically
, as shown in Figure 3, comprising:
S1: state of a control switches switching to first state so that the on-off switch of one of switching relay because
Corresponding switching relay power and be closed, and then make the single-pole double-throw switch (SPDT) of the relay group movable contact and one of them
Stationary contact connection.
S2: state of a control switches switching to the second state, so that the on-off switch of another switching relay is because right
The switching relay power answered and be closed, and then make the movable contact and another stationary contact of the single-pole double-throw switch (SPDT) of the relay group
Point connection.
The first state and the second state that present aspect refers to, could be aware that, it will not be described here according to previous embodiment.
Based on the switching method that reason same as the previously described embodiments, third aspect present invention provide, relay is utilized
Normally opened, normal-closed end the switching of single-pole double throw contact, target and simulator during realization computer testing system operates with
State is quickly converted, and solves grafting of the computer testing system by manual operation control cable to measured target and simulator
Aims of systems and simulator state transfer problem are carried out, the usability of system is improved.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (8)
1. the connection switching circuit of a kind of TT&C system and measured target and simulator characterized by comprising state switching is opened
Pass, two switching relays and the relay group being made of the switching relay of several parallel connections；
Each switching relay includes an on-off switch, and two switching relays are connected in parallel with each other described
Between state switch and connecting node, and one can be selected by state switch and be connected to external power supply, and then control pair
The on-off switch closure answered；
The on-off switch closure of one of them switching relay is connected to the relay group with the connecting node；
Each switching relay includes a single-pole double-throw switch (SPDT), and two stationary contacts of each single-pole double-throw switch (SPDT) connect respectively
Simulator and measured target are connect, movable contact connects computer measurement and control system.
2. switching circuit according to claim 1, which is characterized in that the circuit further include:
With one of first state display lamp in parallel of described two switching relays；And/or with this two switching relays
Another second state display lamp in parallel of device.
3. switching circuit according to claim 1, which is characterized in that the circuit further includes connecting with the connecting node
Fault detection module, for detecting whether the switching circuit occurs open circuit fault.
4. switching circuit according to claim 3, which is characterized in that each switching relay further includes an on-off
Switch, when the switching relay is powered, the on-off switch of the switching relay is opened, the movable contact of single-pole double-throw switch (SPDT) with should
One of stationary contact connection of switch, the fault detection module include:
Fault detection relay, the fault detection relay include an on-off switch, trouble light, another switching relay
On-off switch and each switching relay on-off switch；
The trouble light is in parallel with the fault detection relay, and connects with the on-off switch of the fault detection relay；
The on-off switch of each switching relay is serially connected and is connected between connecting node and the power transfer relay；
The on-off switch of this another switching relay is in parallel with the on-off switch of the switching relay each of is serially connected
Setting.
5. switching circuit according to claim 1 or 4, which is characterized in that the on-off switch is single-pole single-throw switch (SPST).
6. switching circuit according to claim 1, which is characterized in that the switching circuit further include:
Power switch, for controlling the connection of the circuit and external power supply.
7. the connection switching apparatus of a kind of TT&C system and measured target and simulator, which is characterized in that including such as claim
The described in any item switching circuits of 1-6.
8. a kind of method using switching circuit as claimed in any one of claims 1 to 6 characterized by comprising
State of a control switches switching to first state, so that the on-off switch of one of switching relay is cut because corresponding
It changes relay power and is closed, and then connect the movable contact of the single-pole double-throw switch (SPDT) of the relay group and one of stationary contact
It connects；
State of a control switches switching to the second state, so that the on-off switch of another switching relay is because of corresponding switching
Relay power and be closed, and then connect the movable contact of the single-pole double-throw switch (SPDT) of the relay group with another stationary contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303182.2A CN110007590B (en) | 2019-04-16 | 2019-04-16 | Connection switching circuit of measurement and control system, measured target and simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303182.2A CN110007590B (en) | 2019-04-16 | 2019-04-16 | Connection switching circuit of measurement and control system, measured target and simulator |
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| Publication Number | Publication Date |
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| CN110007590A true CN110007590A (en) | 2019-07-12 |
| CN110007590B CN110007590B (en) | 2022-09-23 |
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| CN201910303182.2A Active CN110007590B (en) | 2019-04-16 | 2019-04-16 | Connection switching circuit of measurement and control system, measured target and simulator |
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| US20050225920A1 (en) * | 2002-01-24 | 2005-10-13 | Siemens Aktiengesellschaft | Electrical circuit comprising an electromagnetic relay and a switching arrangement which is mounted in parallel to a contact of the magnetic relay |
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| CN110007590B (en) | 2022-09-23 |
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