CN106531570A - Device for monitoring state of multi-path switch - Google Patents
Device for monitoring state of multi-path switch Download PDFInfo
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- CN106531570A CN106531570A CN201611248839.2A CN201611248839A CN106531570A CN 106531570 A CN106531570 A CN 106531570A CN 201611248839 A CN201611248839 A CN 201611248839A CN 106531570 A CN106531570 A CN 106531570A
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- module
- voltage
- input
- circuit
- detection module
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
Landscapes
- Electronic Switches (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention provides a device for monitoring a state of a multi-path switch. The device comprises a shell, wherein the shell is in a rectangular shape with two sides beveled, a plurality of two-position input wiring seats and a plurality of two-position output wiring seats are respectively arranged on bevel surfaces of the shell, a plurality of button switches are arranged at the middle part of an upper surface of the shell, one button switch is arranged only near to one input wiring seat or one output wiring seat, and a circuit board is arranged in the shell, is used for monitoring a switch state and comprises multiple groups of switch connection input ends, a multi-path voltage detection module, a voltage conversion module, the plurality of button switches, a combined logic circuit unit and a power supply module. By the device, the state of the multi-path switch is monitored, a warning signal is output during automatic striping or power shortage of an input end of the monitored switch, and centralized management is facilitated.
Description
Technical field
The present invention relates to field of electrical equipment, and in particular to for monitoring the device of variable connector state.
Background technology
Many low-voltage power switchs such as breaker needs button switch, and generally open circuit utensil in use at present
Standby short-circuit protection function, as some electrical loads do not possess the property that such as illuminating lamp or display screen etc. are easy to observed in power down
Matter, and when in use because be not required to very important person's moment guard be difficult to find in time its whether power down, when higher level Surveillance center find it is disconnected
After road device disconnects, it is difficult to judge to be because maintenance needs in time and artificial manual-lock or the automatic short-circuit protection of breaker,
The monitoring state to every way switch is more difficult to when with variable connector, it is therefore necessary to be designed for monitoring variable connector
The device of state.
The content of the invention
For the deficiency in the presence of prior art, the invention provides the device for monitoring variable connector state, with
The convenient corresponding power switch control to observed equipment is difficult after power down carries out Centralized Monitoring, it is to avoid because of not timely discovery
There is harmful effect.
For achieving the above object, present invention employs following technical scheme：
For monitoring the device of variable connector state, comprising housing, rectangle of the housing in both sides chamfering, in the chamfering of housing
Face is respectively equipped with some two input wires seats and two output connection seats, is provided with some buttons and opens in the middle part of housing upper surface
Close, and a button switch is only arranged close to an input wires seat or output connection seat；Circuit is additionally provided with enclosure interior
Plate, the circuit board are connect comprising multigroup switch connection input, plurality of voltages detection module, voltage transformation module, button switch
Line end, combinational logic circuit unit and supply module, each group of its breaker in middle connection input are corresponded to comprising separate
First input end and the second input, wherein first input end is connected with two input wires seats, the second input and two
Output connection seat is connected；Each group in voltage detecting module detects mould with second voltage comprising first voltage detection module
Block；The first input end, the second input are corresponding in parallel respectively at the input with monitored same switch, output end；
The first voltage detection module is electrically connected with first input end, for detecting the voltage of first input end, second voltage detection
Module is electrically connected with the second input, for detecting the voltage of the second input, the first voltage detection of each voltage detecting module
Module is connected with voltage transformation module respectively with the output of second voltage detection module, to be corresponded to adjustment or be matched as numeral
Voltage or the voltage that can be compared that circuit can be recognized；The output of combinational logic circuit unit and voltage transformation module
Be connected, and correspondence is identified judging and encoding output, the on off state for determining is exported using less bit wide；The button
Switch is connected respectively to each button switch terminals, the output of first voltage detection module corresponding voltage interconnecting module by wire
End is connected with the input of combinational logic circuit through button switch；Supply module provides voltage transformation module and combinational logic electricity
The required electricity consumption of road unit.
Further, in each voltage detecting module, corresponding first voltage detection module, second voltage detection module are divided equally
Not Bao Han current-limiting resistance and the photodiode pair connected with current-limiting resistance, the photodiode to comprising two head and the tail it is reverse
And the photodiode for connecing.
Further, with each voltage detecting module corresponding connection of the voltage transformation module comprising common ground connection is multigroup
Amplifying circuit, every group of amplifying circuit include first via triode amplification module and the second road triode amplification module, right respectively
Should be connected with the first voltage detection module of connected voltage detecting module, the second detection module；First via triode amplification module
And second road triode amplification module be common emitter amplifying circuit structure, the equal phototriode of triode therein, its point
The other corresponding photodiode received in first voltage detection module, second voltage detection module is shone to the light for being sent
Penetrate；The phototriode of first via triode amplification module is only when by the photodiode of first voltage detection module to irradiation
Conducting；The phototriode of the second road triode amplification module only by the photodiode of second voltage detection module to irradiation
When turn on.
Further, circuit board also includes communication module, input and the combinational logic circuit unit of the communication module
Output is connected；The communication module includes RS485 communication units, and corresponding housing is provided with the communication connected with communication module and is connect
Mouthful.
Further, the combinational logic circuit includes some XOR circuits, and not circuit, wherein, XOR
Two inputs of logic circuit, two inputs of and not circuit respectively correspond to the same voltage detecting module pair of connection
The voltage interconnecting module output end answered；Combinational logic circuit also includes coding circuit, the input of coding circuit respectively with each XOR
The connection end correspondence phase of the output end of logic circuit, the output end of and not circuit, voltage interconnecting module Jing after button switch
Even.
Further, also comprising alarm module；One of them of the input of alarm module and combinational logic circuit unit is defeated
Go out end independent connected.
The present invention can facilitate connection corresponding with the variable connector for needing monitoring, need its input of switch and wherein of monitoring
One input wires seat simultaneously connects, and the monitored output end of switch is with the output connection seat of opposite side relative position and connects；By many
Group input gathers the input voltage and output voltage of each monitored switch simultaneously, is believed to realizing light-coupled isolation by photodiode
Number transmission, after voltage transformation module, monitored switcher input voltage quickly can be determined with output voltage, when being supervised
When the switch of control closes a floodgate, its input is identical with the voltage of output end and phase place, therefore, can determine by XOR circuit
What which switched opens a sluice gate state, and when monitored switch closes a floodgate, if the monitored input for switching has electricity, photodiode
To irradiating phototriode so that phototriode is turned on, the common emitter amplifying circuit structure of voltage interconnecting module is exported
Low level, on the contrary high level is exported, therefore the input power down of monitored switch is can determine by and not circuit
Situation, and XOR circuit, the logic of and not circuit are consistent, i.e., switch to disconnect when judging to be monitored
When and not circuit output occur without the situation of the input power-off for representing monitored switch, be easy to the extension of circuit to connect
Connect, while the state by coding circuit by both inputs with button switch is connected, under normal circumstances, button switch breaks
When opening, then the corresponding input of coding circuit does not have a control source, when button switch is connected, then the corresponding input of coding circuit
For low-voltage, when monitored switch input power-off, then button switch voltage status of its respective input in connection are
High voltage；Thus, under normal circumstances, when needs are by monitored switch artificial disconnection, then cut-off push button switch can be transmitted certainly
Dynamic tripping operation and the artificial difference for disconnecting, and can interpolate that when button switch connect the monitored input for switching whether have a power failure or
Short of electricity, and recognized by coding circuit and output alarm signal.
Compared to prior art, the present invention has the advantages that：Easy-to-connect, arranges flexible, can be easily to many
Way switch carries out condition monitoring, and the output alarm signal or by logical in automatic trip or the input short of electricity of monitored switch
Letter module is uploaded to Surveillance center, convenient to manage concentratedly.
Description of the drawings
External structure schematic diagrams of the Fig. 1 for the present embodiment.
Electrical principle block diagrams of the Fig. 2 for the present embodiment.
One group voltage detecting module and voltage conversion circuit schematic diagram of the Fig. 3 for the present embodiment.
Combinational logic schematic diagrams of the Fig. 4 for the present embodiment.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further illustrated to the technical scheme in the present invention.
For monitoring the device of variable connector state, as shown in figure 1, housing 1 is included, rectangle of the housing 1 in both sides chamfering,
Some two input wires seats 2 and two output connection seats 3 are respectively equipped with the fillet surface 6 of housing, in 1 upper surface of housing
Portion is provided with some button switches 4, and a button switch 4 is only arranged close to an input wires seat or output connection seat；
Circuit board is additionally provided with inside housing 1, as shown in Fig. 2 the circuit board includes multigroup switch connection input, plurality of voltages detection
Module, voltage transformation module, button switch terminals, combinational logic circuit unit and supply module, its breaker in middle connection input
Each group of end is corresponded to comprising separate first input end J1 and the second input J2, wherein first input end J1 and two
Position input wires seat 2 is connected, and the second input J2 is connected with two output connection seats 3；Each group in voltage detecting module is equal
Comprising first voltage detection module and second voltage detection module；The first input end J1, the second input J2 respectively at
The input of monitored same switch, output end correspondence are in parallel；The first voltage detection module is electric with first input end J1
Connection, for detecting the voltage of first input end J1, second voltage detection module is electrically connected with the second input J2, for detecting
The voltage of the second input J2, the first voltage detection module of each voltage detecting module and the output of second voltage detection module point
It is not connected with voltage transformation module, to be corresponded to adjustment or the voltage that can recognize as digital circuit of matching or can be carried out
Voltage relatively；Combinational logic circuit unit is connected with the output of voltage transformation module, and correspondence is identified judging and encodes
Output, to export the on off state for determining using less bit wide；The button switch is connected respectively to each button by wire
Switch terminal, the output end of first voltage detection module corresponding voltage interconnecting module is through button switch SDn and combinational logic
The input of circuit is connected；Supply module provides the required electricity consumption of voltage transformation module and combinational logic circuit unit.
As shown in figure 3, the first voltage detection module includes current-limiting resistance R1 and the photoelectricity connected with current-limiting resistance R1
Diode pair LED1, second voltage detection module include current-limiting resistance R2 and the photodiode pair connected with current-limiting resistance R2
LED2, as first input end J1 or normal the second input J2 voltages, then photodiode is to LED1, photodiode pair
LED2 correspondences are with power frequency light-emitting, and correspondence is irradiated to phototriode Q1, Q2 in voltage transformation module；The voltage conversion mould
First via triode amplification module of the block comprising common ground connection and the second road triode amplification module；First via triode amplifies mould
Block includes phototriode Q1, and collector resistance R2, the second road triode amplification module include phototriode Q2, colelctor electrode electricity
Resistance R3, and total radio amplifier connection is, only correspondence receives first voltage detection module, second voltage detection module respectively for which
In photodiode sent light irradiation；The phototriode Q1 of first via triode amplification module is only electric by first
The photodiode of pressure detection module is turned on when irradiating to LED1；The phototriode Q2 of the second road triode amplification module only exists
Turn on when being irradiated to LED2 by the photodiode of second voltage detection module, the output end of first via triode amplification module
T1, output end t2 of the second road triode amplification module are connected with the input of combinational logic circuit respectively；When monitored is broken
Road device closes a floodgate when turning on, and output end t1 is identical with the voltage of output end t2, after the circuit breaker trip of monitoring, under normal circumstances,
Irradiation due to lacking LED2, Q2 cut-offs so that the voltage of output end t2 is stable high level output, the voltage of output end t1
For low level output, therefore multilevel iudge module can select XOR circuit, to connect output end t1, t2.
As shown in Figures 1 and 2, circuit board also includes communication module, the input of the communication module and combinational logic circuit
The output of unit is connected；Corresponding housing 1 is provided with the communication interface 5 connected with communication module, and the communication module is included
RS485 communication units, to realize and overlayer monitors center to center communications.
As shown in figure 4, the combinational logic circuit includes some XOR circuits, and not circuit, wherein, XOR
Two inputs of logic circuit, two inputs of and not circuit respectively correspond to the same voltage detecting module pair of connection
Voltage interconnecting module output end t1 that should connect, output end t2；Combinational logic circuit also include coding circuit, coding circuit it is defeated
Enter output end respectively with each XOR circuit, the output end of and not circuit, voltage interconnecting module Jing after button switch
Connection end correspondence be connected, coding circuit is prior art, be will not be described here.
Alarm module is included also；One of output end independence phase of the input of alarm module and combinational logic circuit unit
Even；The alarm module includes audible alarm circuit.
The present invention gathers the input voltage and output voltage of each monitored switch simultaneously by multigroup input, by photoelectricity
Diode pair realizes light-coupled isolation signal transmission, after voltage transformation module, monitored switcher input voltage with it is defeated
Go out voltage quickly to determine, when monitored switch closes a floodgate, its input is identical with the voltage of output end and phase place, therefore,
The state of opening a sluice gate of its switch can determine by XOR circuit, and when monitored switch closes a floodgate, if monitored switch
Input have electricity, then photodiode is to irradiating phototriode so that phototriode is turned on, and voltage interconnecting module is total to
Emitter stage amplification circuit structure exports low level, otherwise exports high level, therefore can determine by and not circuit
The situation of the input power down of monitored switch, and XOR circuit, the logic of and not circuit are consistent,
I.e. when monitored switch is judged to disconnect, the output of and not circuit occurs without the input power-off for representing monitored switch
Situation, be easy to the extension of circuit to connect, while having contacted the state of both inputs and button switch by coding circuit
Come, under normal circumstances, when button switch disconnects, then the corresponding input of coding circuit does not have control source, button switch connection
When, then the corresponding input of coding circuit is low-voltage, and when monitored switch input power-off, then button switch is in connection
The voltage status of its respective input are high voltage；Thus, under normal circumstances, when needing monitored switch artificial disconnection,
Then cut-off push button switch can transmit automatic trip and the artificial difference for disconnecting, and can interpolate that when button switch is connected and supervised
Whether the input of control switch has a power failure or short of electricity, and is recognized by coding circuit and output alarm signal.
Finally illustrate, above example is only unrestricted to illustrate technical scheme, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, which all should be covered at this
In the middle of the right of invention.
Claims (6)
1. it is used for monitoring the device of variable connector state, it is characterised in that：Comprising housing, housing is in the rectangle of both sides chamfering,
The fillet surface of housing is respectively equipped with some two input wires seats and two output connection seats, is provided with the middle part of housing upper surface
Some button switches, and button switch is only arranged close to an input wires seat or output connection seat；In enclosure interior
Be additionally provided with circuit board, the circuit board comprising multigroup switch connection input, plurality of voltages detection module, voltage transformation module,
Button switch terminals, combinational logic circuit unit and supply module, each group of its breaker in middle connection input correspond to bag
Containing separate first input end and the second input, wherein first input end is connected with two input wires seats, and second is defeated
Enter end to be connected with two output connection seats；Each group in voltage detecting module is electric with second comprising first voltage detection module
Pressure detection module；The first input end, the second input are respectively at the input with monitored same switch, output end pair
Should parallel connection；The first voltage detection module is electrically connected with first input end, and for detecting the voltage of first input end, second is electric
Pressure detection module is electrically connected with the second input, and for detecting the voltage of the second input, the first of each voltage detecting module is electric
Pressure detection module is connected with voltage transformation module respectively with the output of second voltage detection module, is corresponded to adjustment or is matched
The voltage that can be recognized for digital circuit or the voltage that can be compared；Combinational logic circuit unit and voltage transformation module
Output be connected, and correspondence be identified judging and encode output, with using less bit wide output determination on off state；Institute
State button switch and each button switch terminals, first voltage detection module corresponding voltage interconnecting module are connected respectively to by wire
Output end be connected with the input of combinational logic circuit through button switch；Supply module provides voltage transformation module and combination
The required electricity consumption of logic circuit unit.
2. the device for monitoring variable connector state according to claim 1, it is characterised in that：Each voltage detecting module
In corresponding first voltage detection module, second voltage detection module respectively include current-limiting resistance and connect with current-limiting resistance
Photodiode pair, the photodiode is to photodiode that is reverse comprising two head and the tail and connecing.
3. the device for monitoring variable connector state according to claim 2, it is characterised in that：The voltage conversion mould
Multigroup amplifying circuit of with each voltage detecting module corresponding connection of the block comprising common ground connection, every group of amplifying circuit include first
Road triode amplification module and the second road triode amplification module, correspond to the first voltage inspection with connected voltage detecting module respectively
Survey module, the second detection module to be connected；First via triode amplification module and the second road triode amplification module are common transmitting
Pole amplification circuit structure, the equal phototriode of triode therein, its respectively only correspondence receive first voltage detection module, second
Light irradiation of the photodiode in voltage detection module to being sent；The phototriode of first via triode amplification module
Only turn on when by the photodiode of first voltage detection module to irradiation；Photosensitive three pole of the second road triode amplification module
Pipe is only turned on when by the photodiode of second voltage detection module to irradiation.
4. the device for monitoring variable connector state according to claim 1, it is characterised in that：Circuit board is also comprising logical
Letter module, the input of the communication module are connected with the output of combinational logic circuit unit；The communication module is logical comprising RS485
Letter unit, corresponding housing are provided with the communication interface connected with communication module.
5. the device for monitoring variable connector state according to claim 1, it is characterised in that：The combinational logic electricity
Road includes some XOR circuits, and not circuit, wherein, two inputs of XOR circuit, NAND Logic electricity
Two inputs on road respectively correspond to the corresponding voltage interconnecting module output end of the same voltage detecting module of connection；Combinational logic
Circuit also includes coding circuit, the input output end respectively with each XOR circuit of coding circuit, and not circuit
The connection end correspondence of output end, voltage interconnecting module Jing after button switch is connected.
6. the device for monitoring variable connector state according to claim 1, it is characterised in that：Warning mould is included also
Block；The input of alarm module is independently connected with one of output end of combinational logic circuit unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248839.2A CN106531570B (en) | 2016-12-29 | 2016-12-29 | For monitoring the device of variable connector state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248839.2A CN106531570B (en) | 2016-12-29 | 2016-12-29 | For monitoring the device of variable connector state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106531570A true CN106531570A (en) | 2017-03-22 |
| CN106531570B CN106531570B (en) | 2019-01-22 |
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ID=58339316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248839.2A Active CN106531570B (en) | 2016-12-29 | 2016-12-29 | For monitoring the device of variable connector state |
Country Status (1)
| Country | Link |
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| CN (1) | CN106531570B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329031A (en) * | 2017-07-14 | 2017-11-07 | 北京送变电公司 | Contact sequencing device |
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| CN206271628U (en) * | 2016-12-29 | 2017-06-20 | 重庆市渝展电气有限公司 | A kind of device for monitoring variable connector state |
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| DE10014318A1 (en) * | 2000-03-23 | 2001-09-27 | Delphi Tech Inc | Switch position monitoring device for multiple switching system has switches activated simultaneously connected in switch groups |
| CN101051060A (en) * | 2007-04-13 | 2007-10-10 | 博耳(无锡)电力成套有限公司 | Multiple llop multifunction power comprehensive communication instrument |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106531570B (en) | 2019-01-22 |
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