CN217769604U - Signal twin device - Google Patents
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- CN217769604U CN217769604U CN202221535257.3U CN202221535257U CN217769604U CN 217769604 U CN217769604 U CN 217769604U CN 202221535257 U CN202221535257 U CN 202221535257U CN 217769604 U CN217769604 U CN 217769604U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model provides a signal twin device, the device includes: the device comprises a communication interface, a controller, a multi-circuit breaker detection circuit, a multi-circuit signal output circuit and a switch power supply circuit; the multi-circuit breaker detection circuit is used for detecting the operating states of the plurality of circuit breakers; the controller is used for acquiring the action state of the spare power automatic switching device through the communication interface and generating corresponding control signals according to the running state of the spare power automatic switching device and the running states of the circuit breakers; the multi-path signal output circuit is used for outputting a corresponding remote signaling signal according to the control signal, so that the distribution network automation terminal obtains the running state of the spare power automatic switching device according to the remote signaling signal; the problem that the manpower cost is high, the detection efficiency is low and the misjudgment rate is high when regular inspection is carried out manually is solved, the manpower cost is reduced, and the detection efficiency and the accuracy are improved.
Description
Technical Field
The utility model relates to the field of electric power technology, especially, relate to a signal twin device.
Background
At present, each switching station is equipped with an automatic standby power supply switching device (referred to as a standby automatic switching device). The device automatically cuts off the working power supply and quickly puts the working power supply into a standby power supply after the working power supply disappears, thereby recovering the power supply of a user, improving the reliability of the power supply and reducing the power failure time.
Factors influencing the normal operation and the successful action of the automatic backup power switching device in actual operation are inevitable, such as PT disconnection, abnormal switching value acquisition and the like influence the charging of the automatic backup power switching device, and the successful action of the automatic backup power switching device is influenced by the abnormality of a direct-current power supply and the abnormality of a corresponding switch control loop. At present, in order to ensure the action success rate of the spare power automatic switching device, the spare power automatic switching device needs to be tested regularly to ensure the integrity of the spare power automatic switching; people also need to be sent to the switching station regularly to make a tour so as to ensure the normal operation of the automatic bus transfer device, so that the problems of high labor cost, low detection efficiency and high misjudgment rate exist generally.
Therefore, in the prior art, the problems of high labor cost, low detection efficiency and high misjudgment rate exist in a mode that a patrol inspector performs regular patrol and test on the spare power automatic switching device.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a pair of signal twin device, it has solved through the manual work and has carried out the problem that the human cost that regularly patrols and examines the appearance is high, detection efficiency is low and the erroneous judgement rate is high, has not only reduced the human cost, has still improved detection efficiency and rate of accuracy.
The utility model provides a signal twin device, the device includes: the device comprises a communication interface, a controller, a multi-circuit breaker detection circuit, a multi-circuit signal output circuit and a switch power supply circuit; when the communication interface is used, the communication interface is connected with a spare power automatic switching device and is used for connecting the controller with the spare power automatic switching device in a communication way; the multi-circuit breaker detection circuit is respectively connected with a plurality of circuit breakers when in use and is used for detecting the running states of the circuit breakers; the controller is respectively connected with the communication interface and the multi-circuit breaker detection circuit, is used for acquiring the action state of the spare power automatic switching device through the communication interface, and is also used for generating corresponding control signals according to the running state of the spare power automatic switching device and the running states of the plurality of circuit breakers; the multi-path signal output circuit is connected with the controller, and is also connected with the distribution network automation terminal when in use, and is used for outputting a corresponding remote signaling signal according to the control signal, so that the distribution network automation terminal obtains the running state of the spare power automatic switching device according to the remote signaling signal; the switch power supply circuit is connected with an external power supply when in use and is used for converting the input voltage of the external power supply into various working voltages, so that the various working voltages provide matched working electric energy for the communication interface, the controller, the multi-circuit breaker detection circuit and the multi-circuit signal output circuit.
Optionally, the apparatus further comprises: the input end of the bus voltage detection circuit is connected with a bus power supply of the circuit breaker when in use, and the output end of the bus voltage detection circuit is connected with the controller and used for detecting the current voltage value of the bus power supply in real time to enable the controller to compare the current voltage value with a first preset voltage value.
Optionally, the bus voltage detection circuit includes: the first resistor and the first photoelectric coupler; the primary side anode of the first photoelectric coupler is connected with the live wire of the bus power supply through the first resistor, the primary side cathode of the first photoelectric coupler is connected with the zero line of the bus power supply, the secondary side collector of the first photoelectric coupler is connected with the output end of the switching power supply circuit, and the secondary side emitter of the first photoelectric coupler is connected with the controller.
Optionally, the bus voltage detection circuit further includes: the second resistor, the third resistor and the first capacitor; the first end of the second resistor and the first end of the first capacitor are respectively connected with the primary side anode of the first photoelectric coupler, and the second end of the second resistor and the second end of the first capacitor are respectively connected with the primary side cathode of the first photoelectric coupler; and the secondary emitter of the first photoelectric coupler is grounded through the third resistor.
Optionally, each circuit breaker detection circuit comprises: a fourth resistor and a second photoelectric coupler; and the primary side anode of the second photoelectric coupler is connected with the first end of the circuit breaker through the fourth resistor, the primary side cathode of the second photoelectric coupler is connected with the second end of the circuit breaker, the secondary side collector of the second photoelectric coupler is connected with the output end of the switching power supply circuit, and the secondary side emitter of the second photoelectric coupler is connected with the controller.
Optionally, each circuit breaker detection circuit further includes: the first resistor, the second resistor, the third diode and the fourth capacitor are connected in series; the first end of the fifth resistor, the cathode of the first diode and the first end of the second capacitor are respectively connected with the primary side anode of the second photoelectric coupler, and the second end of the fifth resistor, the anode of the first diode and the second end of the second capacitor are respectively connected with the primary side cathode of the second photoelectric coupler; and the secondary emitter of the second photoelectric coupler is also grounded through the sixth resistor.
Optionally, each signal output circuit comprises: a seventh resistor, a triode and a relay; the base electrode of the triode is connected with the controller through the seventh resistor, and the emitting electrode of the triode is grounded; the first end of the coil of the relay is connected with the output end of the switching power supply circuit, the second end of the coil of the relay is connected with the collector of the triode, the first end of the switch of the relay is the public end of the signal output circuit, and the second end of the switch of the relay is connected with the distribution network automation terminal.
Optionally, each of the signal output circuits further includes: an eighth resistor and a second diode; the first end of the eighth resistor is connected with the controller, and the second end of the eighth resistor is connected with the emitter of the triode; and the cathode of the second diode is connected with the first end of the coil of the relay, and the anode of the second diode is connected with the second end of the coil of the relay.
Optionally, the switching power supply circuit includes: the input end of the EMC filtering module is connected with the external power supply and is used for filtering and converting the input voltage of the external power supply to obtain a first working voltage; and the input end of the voltage reduction module is connected with the output end of the EMC filtering module, and the output end of the voltage reduction module is connected with the communication interface, the controller, the multi-circuit breaker detection circuit or/and the multi-circuit signal output circuit and is used for reducing the first working voltage to obtain a second working voltage.
Optionally, the apparatus further comprises: and the input end of the output voltage detection circuit is connected with the output end of the EMC filtering module, and the output end of the output voltage detection circuit is connected with the controller and used for detecting the current first working voltage value output by the EMC filtering module in real time, so that the controller compares the current first working voltage value with a second preset voltage value.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses make controller and spare power automatic switching device carry out communication connection through communication interface to make the controller acquire the current operating condition of spare power automatic switching device; the method comprises the steps that a controller obtains current operation states of a plurality of circuit breakers through a multi-circuit breaker detection circuit; however, the controller generates corresponding control signals according to the current working state of the backup automatic switching device and the current operation devices of the plurality of circuit breakers, so that the multi-path signal output circuit transmits corresponding remote signaling signals according to the corresponding control signals and the distribution network automation terminal, a maintainer monitors the current operation mode of the backup automatic switching device and judges whether the backup automatic switching action is successful or not through the distribution network automation terminal, and if the backup automatic switching device fails or judges that the backup automatic switching action fails, the maintainer is informed in advance to overhaul, thereby solving the problems of high labor cost, low detection efficiency and high misjudgment rate caused by manual regular inspection, reducing the labor cost and improving the detection efficiency and accuracy.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a signal twinning device according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a bus voltage detection circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a circuit breaker detection circuit according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a signal output circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
The functional units of the same reference numerals in the examples of the present invention have the same and similar structures and functions.
Example one
Fig. 1 is a schematic structural diagram of a signal twin device according to an embodiment of the present invention, and as shown in fig. 1, a signal twin device 100 provided in this embodiment specifically includes:
a communication interface 110, a controller 120, a multi-way circuit breaker 300 detection circuit 130, a multi-way signal output circuit 140 and a switching power supply circuit 150;
the communication interface 110 is connected to the automatic backup power switching device 200 when in use, and is used for connecting the controller 120 to the automatic backup power switching device 200 in a communication manner;
the multi-circuit breaker 300 detection circuit 130 is respectively connected with a plurality of circuit breakers 300 when in use and is used for detecting the running states of the circuit breakers 300;
the controller 120 is connected to the communication interface 110 and the detection circuit 130 of the multi-circuit breaker 300, and is configured to obtain an operation state of the backup power automatic switching device 200 through the communication interface 110, and generate corresponding control signals according to an operation state of the backup power automatic switching device 200 and operation states of the multiple circuit breakers 300;
the multi-path signal output circuit 140 is connected to the controller 120, and when in use, the multi-path signal output circuit 140 is further connected to a distribution network automation terminal, and configured to output a corresponding remote signaling signal according to the control signal, so that the distribution network automation terminal obtains an operation state of the backup automatic switching device 200 according to the remote signaling signal;
the switching power supply circuit 150 is connected to an external power supply when in use, and is configured to convert an input voltage of the external power supply into a plurality of working voltages, so that the plurality of working voltages provide working electric energy to the communication interface 110, the controller 120, the multi-path circuit breaker 300 detection circuit 130, and the multi-path signal output circuit 140 in a matching manner.
It should be noted that, the present invention enables the controller 120 to perform communication connection with the backup power automatic switching device 200 through the communication interface 110, so that the controller 120 obtains the current working state of the backup power automatic switching device 200; the detection circuit 130 through the multi-circuit breaker 300 enables the controller 120 to obtain the current operating states of the plurality of circuit breakers 300; however, the controller 120 generates a corresponding control signal according to the current operating state of the backup automatic switching device 200 and the current operating devices of the plurality of circuit breakers 300, so that the multi-path signal output circuit 140 transmits a corresponding remote signaling signal according to the corresponding control signal and the distribution network automation terminal, and a maintainer monitors the current operating mode of the backup automatic switching device 200 and determines whether the backup automatic switching operation is successful or not through the distribution network automation terminal, and if the backup automatic switching device 200 fails or determines that the backup automatic switching operation fails, the maintainer is informed in advance to perform maintenance, thereby solving the problems of high labor cost, low detection efficiency and high misjudgment rate caused by manual periodic inspection, reducing the labor cost, and improving the detection efficiency and accuracy.
Example two
In this embodiment, the apparatus further includes: the input end of the bus voltage detection circuit is connected with a bus power supply of the circuit breaker when in use, and the output end of the bus voltage detection circuit is connected with the controller and used for detecting the current voltage value of the bus power supply in real time to enable the controller to compare the current voltage value with a first preset voltage value.
Fig. 2 is a schematic circuit diagram of a bus voltage detection circuit according to an embodiment of the present invention; as shown in fig. 2, the bus voltage detection circuit includes:
a first resistor R1 and a first photoelectric coupler U1;
the primary side anode of the first photoelectric coupler U1 is connected with the live wire of the bus power supply through the first resistor R1, the primary side cathode of the first photoelectric coupler U1 is connected with the zero line of the bus power supply, the secondary side collector of the first photoelectric coupler is connected with the output end of the switching power supply circuit, and the secondary side emitter of the first photoelectric coupler is connected with the controller.
In this embodiment, the bus voltage detection circuit further includes: a second resistor R2, a third resistor R3 and a first capacitor C1; a first end of the second resistor R2 and a first end of the first capacitor C1 are respectively connected to a primary side anode of the first photoelectric coupler U1, and a second end of the second resistor R2 and a second end of the first capacitor C1 are respectively connected to a primary side cathode of the first photoelectric coupler U1; the secondary emitter of the first photoelectric coupler U1 is also grounded through the third resistor R3.
It should be noted that, the default of the bus power supply of the circuit breaker is 220V dc, the voltage of the device is collected by the bus voltage detection circuit during operation, and when the voltage is lower than a threshold value (about 200V default), the controller is enabled to send an alarm signal with low voltage to the multi-channel signal output circuit.
EXAMPLE III
Fig. 3 is a schematic circuit diagram of a circuit breaker detection circuit according to an embodiment of the present invention; as shown in fig. 3, in the present embodiment, the circuit breaker detection circuit includes:
a fourth resistor R4 and a second photoelectric coupler U2;
the primary side anode of the second photoelectric coupler U2 is connected with the first end of the circuit breaker through the fourth resistor R4, the primary side cathode of the second photoelectric coupler U2 is connected with the second end of the circuit breaker, the secondary side collector of the second photoelectric coupler is connected with the output end of the switching power supply circuit, and the secondary side emitter of the second photoelectric coupler is connected with the controller.
In this embodiment, each circuit breaker detection circuit further includes: a fifth resistor R5, a sixth resistor R6, a first diode D1 and a second capacitor C2; a first end of the fifth resistor R5, a cathode of the first diode D1, and a first end of the second capacitor C2 are respectively connected to a primary anode of the second photoelectric coupler U2, and a second end of the fifth resistor R5, an anode of the first diode D1, and a second end of the second capacitor C2 are respectively connected to a primary cathode of the second photoelectric coupler U2; the secondary emitter of the second photoelectric coupler U2 is also grounded through the sixth resistor R6.
It should be noted that, in this embodiment, the number of the corresponding circuit breaker detection circuits may be matched according to the number of the external circuit breakers, so that the controller may obtain the current operating states of all the circuit breakers, where the current operating states include operation or disconnection; when the breaker is disconnected, the controller sends a control signal to the corresponding signal output circuit.
Example four
Fig. 4 is a schematic circuit diagram of a signal output circuit according to an embodiment of the present invention; as shown in fig. 4, the signal output circuit includes:
a seventh resistor R7, a triode Q1 and a relay K;
the base electrode of the triode Q1 is connected with the controller through the seventh resistor R7, and the emitting electrode of the triode Q1 is grounded;
the first end of the coil of the relay K is connected with the output end of the switching power supply circuit, the second end of the coil of the relay K is connected with the collector of the triode Q1, the first end of the switch of the relay K is a public end of the signal output circuit, and the second end of the switch of the relay K is connected with the distribution network automation terminal.
In this embodiment, each of the signal output circuits further includes: an eighth resistor R8 and a second diode D2; a first end of the eighth resistor R8 is connected to the controller, and a second end of the eighth resistor R8 is connected to an emitter of the transistor Q1; and the cathode of the second diode D2 is connected with the first end of the coil of the relay K, and the anode of the second diode D2 is connected with the second end of the coil of the relay K.
It should be noted that in this embodiment, the level signal sent by the controller controls the on/off of the triode, so as to achieve the purpose of controlling the on/off of the relay, and thus, the distribution automation terminal obtains a corresponding remote signaling signal through the on/off of the relay.
In another embodiment of the present invention, the switching power supply circuit includes:
the input end of the EMC filtering module is connected with the external power supply and is used for filtering and converting the input voltage of the external power supply to obtain a first working voltage;
and the input end of the voltage reduction module is connected with the output end of the EMC filtering module, and the output end of the voltage reduction module is connected with the communication interface, the controller, the multi-path circuit breaker detection circuit or/and the multi-path signal output circuit and used for reducing the voltage of the first working voltage to obtain a second working voltage.
In another embodiment of the present invention, the apparatus further comprises: the output voltage detection module, the input of output voltage detection circuit with the output of EMC filter module links to each other, the output of output voltage detection circuit with the controller links to each other for real-time detection the first current operating voltage value of EMC filter module output makes the controller will current first operating voltage value and second preset voltage value carry out the comparison.
It should be noted that, the device collects the relevant action states (such as a charging mark, a switch position, an action event and the like) of the backup power automatic switch through the communication interface, converts the charging mark of the backup power automatic switch into a signal relay mode for outputting, and the distribution network automation terminal collects the charging mark through a hard remote signaling mode to complete the conversion from 'soft' to 'hard' of the backup power automatic switch charging mark, thereby reducing the debugging workload of the distribution network automation terminal.
Further, the device establishes a spare power automatic switching model under the condition that the spare power automatic switching is well charged according to the spare power automatic switching charging mark and the position of the circuit breaker, so that the operation mode of the spare power automatic switching is judged. And then according to the control voltage information and the circuit breaker control loop information acquired by the device, whether the spare power automatic switching action is successful or not is judged in advance, if the spare power automatic switching action is successful, a good spare power automatic switching charging signal is sent, and if the spare power automatic switching action is not successful, the spare power automatic switching charging signal is not sent. The function does not influence the charging and action of the backup power automatic switching device, and mainly prevents the breaker from being normally switched on and off when the control voltage is too low or the control circuit is disconnected, so that the backup power automatic switching device is prevented from failing to predict maintenance personnel in advance.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A signal twinning device, the device comprising:
the device comprises a communication interface, a controller, a multi-circuit breaker detection circuit, a multi-circuit signal output circuit and a switch power supply circuit;
the communication interface is connected with a spare power automatic switching device when in use and is used for connecting the controller with the spare power automatic switching device in a communication way;
the multi-circuit breaker detection circuit is respectively connected with a plurality of circuit breakers when in use and is used for detecting the running states of the circuit breakers;
the controller is respectively connected with the communication interface and the multi-circuit breaker detection circuit, and is used for acquiring the action state of the spare power automatic switching device through the communication interface and generating corresponding control signals according to the running state of the spare power automatic switching device and the running states of the plurality of circuit breakers;
the multi-path signal output circuit is connected with the controller, and when in use, the multi-path signal output circuit is also connected with the distribution network automation terminal and used for outputting a corresponding remote signaling signal according to the control signal so that the distribution network automation terminal obtains the running state of the spare power automatic switching device according to the remote signaling signal;
the switch power supply circuit is connected with an external power supply when in use and is used for converting input voltage of the external power supply into various working voltages, so that the various working voltages provide working electric energy matched with the communication interface, the controller, the multi-path circuit breaker detection circuit and the multi-path signal output circuit.
2. A signal twinning device as in claim 1 wherein said device further includes:
the bus voltage detection circuit is connected with a bus power supply of the circuit breaker when the input end of the bus voltage detection circuit is used, and the output end of the bus voltage detection circuit is connected with the controller and used for detecting the current voltage value of the bus power supply in real time, so that the controller compares the current voltage value with a first preset voltage value.
3. The signal twinning device of claim 2, wherein the bus voltage detection circuit includes:
a first resistor and a first photoelectric coupler;
the primary side anode of the first photoelectric coupler is connected with the live wire of the bus power supply through the first resistor, the primary side cathode of the first photoelectric coupler is connected with the zero line of the bus power supply, the secondary side collector of the first photoelectric coupler is connected with the output end of the switching power supply circuit, and the secondary side emitter of the first photoelectric coupler is connected with the controller.
4. The signal twinning device of claim 3, wherein the bus voltage detection circuit further includes:
the second resistor, the third resistor and the first capacitor;
the first end of the second resistor and the first end of the first capacitor are respectively connected with the primary side anode of the first photoelectric coupler, and the second end of the second resistor and the second end of the first capacitor are respectively connected with the primary side cathode of the first photoelectric coupler; and the secondary emitter of the first photoelectric coupler is grounded through the third resistor.
5. The signal twinning device of claim 1, wherein each circuit breaker detection circuit includes:
a fourth resistor and a second photoelectric coupler;
and the primary side anode of the second photoelectric coupler is connected with the first end of the circuit breaker through the fourth resistor, the primary side cathode of the second photoelectric coupler is connected with the second end of the circuit breaker, the secondary side collector of the second photoelectric coupler is connected with the output end of the switching power supply circuit, and the secondary side emitter of the second photoelectric coupler is connected with the controller.
6. The signal twinning device of claim 5, wherein each circuit breaker detection circuit further includes:
the first resistor, the second resistor, the third diode and the fourth capacitor are connected in series;
the first end of the fifth resistor, the cathode of the first diode and the first end of the second capacitor are respectively connected with the primary side anode of the second photoelectric coupler, and the second end of the fifth resistor, the anode of the first diode and the second end of the second capacitor are respectively connected with the primary side cathode of the second photoelectric coupler; and the secondary emitter of the second photoelectric coupler is also grounded through the sixth resistor.
7. The signal twinning device of claim 1, wherein each signal output circuit includes:
a seventh resistor, a triode and a relay;
the base electrode of the triode is connected with the controller through the seventh resistor, and the emitting electrode of the triode is grounded;
the first end of the coil of the relay is connected with the output end of the switching power supply circuit, the second end of the coil of the relay is connected with the collector of the triode, the first end of the switch of the relay is the public end of the signal output circuit, and the second end of the switch of the relay is connected with the distribution network automation terminal.
8. The signal twinning device of claim 7, wherein each of the signal output circuits further includes:
an eighth resistor and a second diode;
the first end of the eighth resistor is connected with the controller, and the second end of the eighth resistor is connected with the emitter of the triode;
and the cathode of the second diode is connected with the first end of the coil of the relay, and the anode of the second diode is connected with the second end of the coil of the relay.
9. The signal twinning device of any of claims 1-8, wherein the switching power supply circuit includes:
the input end of the EMC filtering module is connected with the external power supply and is used for filtering and converting the input voltage of the external power supply to obtain a first working voltage;
and the input end of the voltage reduction module is connected with the output end of the EMC filtering module, and the output end of the voltage reduction module is connected with the communication interface, the controller, the multi-path circuit breaker detection circuit or/and the multi-path signal output circuit and used for reducing the voltage of the first working voltage to obtain a second working voltage.
10. A signal twinning device as in claim 9, wherein said device further comprises:
the output voltage detection module, the input of output voltage detection circuit with the output of EMC filter module links to each other, the output of output voltage detection circuit with the controller links to each other for real-time detection the first current operating voltage value of EMC filter module output makes the controller will current first operating voltage value and second preset voltage value carry out the comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221535257.3U CN217769604U (en) | 2022-06-17 | 2022-06-17 | Signal twin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221535257.3U CN217769604U (en) | 2022-06-17 | 2022-06-17 | Signal twin device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217769604U true CN217769604U (en) | 2022-11-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221535257.3U Active CN217769604U (en) | 2022-06-17 | 2022-06-17 | Signal twin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217769604U (en) |
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2022
- 2022-06-17 CN CN202221535257.3U patent/CN217769604U/en active Active
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