CN114400625A - Detection and linkage control device of distribution box - Google Patents
Detection and linkage control device of distribution box Download PDFInfo
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- CN114400625A CN114400625A CN202210185174.4A CN202210185174A CN114400625A CN 114400625 A CN114400625 A CN 114400625A CN 202210185174 A CN202210185174 A CN 202210185174A CN 114400625 A CN114400625 A CN 114400625A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a detection and linkage control device of a distribution box, which effectively solves the problem that a monitoring module in the technical scheme provided by the prior art cannot ensure the safety of the distribution box. The module transferring circuit compares the temperature signal detected by the temperature detection module by using the arc signal output by the arc detection module to obtain a comparison signal, and calculates the current signal detected by the current detection module by using the comparison signal and the arc signal to output a difference signal and outputs the difference signal to the module processing circuit, and the module processing circuit judges the difference signal output by the module transferring circuit to output a reminding signal and an emergency signal to the monitoring module, so that the safety of the distribution box is ensured.
Description
Technical Field
The invention relates to the field of distribution box detection, in particular to a detection and linkage control device for a distribution box.
Background
The distribution box has the characteristics of common application, stable and reliable operation, high space utilization rate, less occupied area and environmental protection effect, is a control link for reliably receiving an upper-end power supply and correctly feeding out load electric energy, and has a self-evident importance. But possess switchgear, measuring instrument, protection electrical apparatus and auxiliary assembly in the block terminal, and the measuring instrument is connected to monitoring module through the connecting wire respectively, and this will make the inside connecting wire of block terminal comparatively chaotic, causes the trouble easily.
Prior art provides application number 202011181499.2 a safe wisdom block terminal then fine solution this problem, detection module with inside splices together each other, can reduce the inside connecting wire of block terminal, make the stability and the security of block terminal all improved, but it is corresponding, monitoring module still need incessantly receive the data that comes from each detection module and detect, and monitoring module needs to handle according to the order of received data, if there is the proruption situation, monitoring module can only finish the data processing who has received and just can handle the data of proruption situation, this threatens the safety of block terminal, and all rely on monitoring module to handle data between the detection module among the prior art, if the monitoring module appears the program and runs away or when the problem of trouble, then the safety of block terminal is not guaranteed.
The present invention therefore provides a new solution to this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a detection and linkage control device for a distribution box, and effectively solves the problem that the safety of the distribution box cannot be ensured by a monitoring module in the technical scheme provided by the prior art.
The technical scheme of its solution is, a detection and coordinated control device of block terminal, the device includes module transfer circuit, module processing circuit, module transfer circuit utilizes the electric arc signal of electric arc detection module output compares the temperature signal that temperature detection module detected to obtain the comparison signal, and utilize comparison signal and electric arc signal to calculate the current signal that current detection module detected, thereby export the difference signal, and export the difference signal to module processing circuit, thereby module processing circuit exports reminder signal and emergency signal to the monitoring module after judging the difference signal of module transfer circuit output.
Further, the module transferring circuit comprises a primary detector and a secondary detector, the primary detector compares the temperature signal detected by the temperature detection module by using the arc signal output by the arc detection module to obtain a comparison signal, and conducts the secondary detector after conducting AND operation by using the comparison signal and the arc signal, and the secondary detector conducts subtraction operation on the current signal detected by the current detection module to output a difference signal, judges the difference signal and finally outputs the difference signal to the module processing circuit.
Further, the preliminary detector includes a resistor R1, one end of the resistor R1 is connected to the arc detection module, the other end of the resistor R1 is connected to the non-inverting terminal of the operational amplifier U2B, the inverting terminals of the operational amplifier U2B are respectively connected to one end of the resistor R4 and one end of the resistor R26, the other end of the resistor R4 is respectively connected to the output terminal of the operational amplifier U2B and the anode of the diode D3, the cathode of the diode D3 is respectively connected to one end of the capacitor C1 and the control electrode of the thyristor Q5, the anode of the thyristor Q5 is connected to the temperature detection module, the cathode of the thyristor Q5 is connected to one end of the resistor R19, the other end of the resistor R19 is connected to the non-inverting terminal of the operational amplifier U4B, the inverting terminal of the operational amplifier U4B is connected to one end of the resistor R B, the other end of the resistor R B is connected to the standard signal, the output terminal of the operational amplifier U4B is respectively connected to one end of the base of the triode R B, the anode of the diode B and the cathode of the diode B, the anode of the diode D4 is connected to one end of the resistor R22, the anode of the diode D6, one end of the capacitor C4, and the control electrode of the thyristor Q9, the other end of the resistor R22 is connected to the other end of the resistor R27, the emitter of the transistor Q1 is connected to the positive power source VCC, the collector of the transistor Q1 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to the other end of the capacitor C4, the other end of the capacitor C1, and the other end of the resistor R26, and the anode of the thyristor Q9 is connected to the current detection module.
Further, the secondary detector includes a resistor R6, one end of the resistor R6 is connected to a cathode of the thyristor Q9 in the primary detector, the other end of the resistor R6 is connected to one end of the resistor R5, the non-inverting end of the operational amplifier U1B, one end of the resistor R7, the inverting end of the operational amplifier U1B is connected to one end of the capacitor C3, one end of the resistor R8, and the other end of the resistor R5, the output end of the operational amplifier U1B is connected to the other end of the resistor R8, the inverting end of the operational amplifier U5 8, and the anode of the thyristor Q8, the output end of the operational amplifier U5 8 is connected to one end of the resistor R8, the base of the triode Q8, and the anode of the diode D8, the cathode of the diode D8 is connected to one end of the capacitor C8, the control electrode of the thyristor Q8, one end of the capacitor C8, the collector of the relay K8, one end of the cathode of the switch S8 of the Q8, and the terminal S363 of the switch pin of the switch 8 are connected to the other end of the switch 363, the emitter of the triode Q8 is respectively connected with the other end of the resistor R18 and the emitter of the triode Q1 in the preliminary detector and is connected with a positive power supply VCC, the other end of the relay K1 is respectively connected with the other end of the resistor R7, the other end of the capacitor C8, the other end of the capacitor C3, the non-inverting end of the operational amplifier U5B and the other end of the capacitor C4 in the preliminary detector and is connected with the ground in parallel.
Furthermore, the module processing circuit judges the difference signal output by the module transferring circuit, generates a reminding signal and an emergency signal according to the amplitude of the difference signal, and outputs the reminding signal and the emergency signal to the monitoring module.
Further, the module processing circuit includes an operational amplifier U3B, an inverting terminal of the operational amplifier U3B is connected to an anode of a thyristor Q10, one end of a resistor R23, and the other end of a pin 3 of a switch S1 in the module transferring circuit, an output terminal of the operational amplifier U3B is connected to the other end of a resistor R23, a base of a transistor Q6, one end of a resistor R6, an anode of a thyristor Q7, and a pin 1 of a switch S1 in the module transferring circuit, a collector of a transistor Q2 is connected to one end of a resistor R9 and an anode of a diode D8, an emitter of a transistor Q2 is connected to one end of a resistor R11, an emitter of a transistor Q6 is connected to the other end of a resistor R10, the other end of a resistor R9, one end of a resistor R13, one end of a resistor R14, one end of a resistor R16, one end of a resistor R17, an emitter of a transistor Q1 in the module transferring circuit, and a cathode of a diode 6 is connected to a positive power supply VCC, and a cathode of a capacitor D8C 73742, A control electrode of the thyristor Q10, a collector of the transistor Q6 is connected to one end of the resistor R12 and an anode of the diode D2, a cathode of the diode D2 is connected to one end of the capacitor C5 and a control electrode of the thyristor Q7, a cathode of the thyristor Q7 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to the other end of the resistor R13 and a base of the transistor Q3, a collector of the transistor Q3 is connected to the other end of the resistor R14 and a base of the transistor Q4, a collector of the transistor Q4 is connected to the other end of the resistor R16, an emitter of the transistor Q4 is connected to a cathode of the regulator D7, the other end of the resistor R17 and one end of the resistor R25, the other end of the resistor R25 is connected to a pin 1 of the AND gate U7A, a pin 16 of the AND gate U7A is connected to an anode of the diode D6 in the module transferring circuit, and an output end of the gate U7A is connected to a cathode of the AND gate Q10 and a cathode of the switch transferring module Q29 and a switch transferring module, One end of a resistor R24, the other end of the resistor R24 is connected with the in-phase end of an operational amplifier U6B, the output end of the operational amplifier U6B is respectively connected with the inverting end of the operational amplifier U6B and the monitoring module, the anode of a voltage regulator tube D7 is respectively connected with the emitter of a triode Q3, the other end of a capacitor C5, the other end of a capacitor C6, the other end of a resistor R12, the in-phase end of an operational amplifier U3B, the other end of a resistor R11 and the other end of a capacitor C4 in the module activating circuit and connected with the ground in parallel.
The invention realizes the following beneficial effects:
the current detection module that sets up the block terminal through setting up module transfer circuit, temperature detection module, the data that arc detection module detected are transferred and are handled, realize reducing monitor module received data promptly, and through to current signal, temperature signal and arc signal calculate and utilize module processing circuit to judge the current change in the block terminal, it is the even still in safe state to judge the block terminal promptly, and at corresponding opening switch operation module, realize the linkage of the module in the block terminal, avoid monitor module when the problem that the program ran away or broke down appears in monitor module, the problem of the safety of block terminal not being guaranteed appears, the safety of effectual guarantee block terminal.
Drawings
Fig. 1 is a schematic diagram of a module mobilizing circuit of the present invention.
Fig. 2 is a schematic diagram of a modular processing circuit of the present invention.
Detailed Description
The foregoing and other technical and functional aspects of the present invention will be apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying figures 1-2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides a detection and coordinated control device of block terminal, the device includes module transfer circuit, module processing circuit, module transfer circuit utilizes the electric arc signal of electric arc detection module output compares the temperature signal that temperature detection module detected to obtain the comparison signal, and utilize comparison signal and electric arc signal to calculate the current signal that current detection module detected, thereby export the difference signal, and export the difference signal to module processing circuit, thereby module processing circuit then judges the difference signal of module transfer circuit output after export reminder signal and emergency signal to monitoring module.
The preliminary detector comprises a resistor R1, one end of the resistor R1 is connected with an arc detection module, the other end of the resistor R1 is connected with a non-inverting end of an operational amplifier U2B, the inverting end of the operational amplifier U2B is respectively connected with one end of a resistor R4 and one end of a resistor R26, the other end of the resistor R4 is respectively connected with an output end of the operational amplifier U2B and an anode of a diode D3, a cathode of a diode D3 is respectively connected with one end of a capacitor C1 and a control electrode of a thyristor Q5, an anode of a thyristor Q5 is connected with a temperature detection module, a cathode of a thyristor Q5 is connected with one end of a resistor R19, the other end of a resistor R19 is connected with the non-inverting end of an operational amplifier U4B, the inverting end of the operational amplifier U4B is connected with one end of a resistor R B, the other end of the resistor R B is connected with a standard signal, an output end of the operational amplifier U4B is respectively connected with one end of a base of a triode R B, an anode of a diode D B and a cathode of a diode D B, the anode of the diode D4 is connected to one end of a resistor R22, the anode of a diode D6, one end of a capacitor C4, and the control electrode of a thyristor Q9, the other end of the resistor R22 is connected to the other end of a resistor R27, the emitter of the transistor Q1 is connected to a positive power supply VCC, the collector of the transistor Q1 is connected to one end of a resistor R21, the other end of the resistor R21 is connected to one end of a capacitor C2, the other end of the capacitor C2 is connected to the other end of a capacitor C4, the other end of a capacitor C1, and the other end of a resistor R26, and the anode of the thyristor Q9 is connected to the current detection module;
the secondary detector comprises a resistor R6, one end of the resistor R6 is connected with the cathode of a thyristor Q9 in the primary detector, the other end of the resistor R6 is respectively connected with one end of a resistor R5, the in-phase end of an operational amplifier U1B and one end of a resistor R7, the inverting end of an operational amplifier U1B is respectively connected with one end of a capacitor C3, one end of a resistor R8 and the other end of a resistor R5, the output end of the operational amplifier U1B is respectively connected with the other end of the resistor R8, the inverting end of the operational amplifier U5 8 and the anode of the thyristor Q8, the output end of the operational amplifier U5 8 is respectively connected with one end of the resistor R8, the base of the triode Q8 and the anode of a diode D8, the cathode of the diode D8 is respectively connected with one end of the capacitor C8, the control electrode of the thyristor Q8, one end of the capacitor C8, one end of the collector of the capacitor C8, one end of the relay K8, the cathode of the thyristor Q8 is connected with the switch S363, and the switch pin S8 of the switch 8 is connected with the switch pin S363, an emitter electrode of the triode Q8 is respectively connected with the other end of the resistor R18 and an emitter electrode of the triode Q1 in the preliminary detector and is connected with a positive power supply VCC, the other end of the relay K1 is respectively connected with the other end of the resistor R7, the other end of the capacitor C8, the other end of the capacitor C3, the non-inverting end of the operational amplifier U5B and the other end of the capacitor C4 in the preliminary detector and is connected with the ground in parallel;
the module transferring circuit comprises a primary detector and a secondary detector, the primary detector utilizes an arc signal output by the arc detection module to be transmitted to an operational amplifier U2B through a resistor R1 and amplified through an operational amplifier U2B, the arc signal is prevented from being weak and incapable of being transmitted, the thyristor Q5 is conducted through a diode D3 and a capacitor C1, namely, the temperature signal of the part where the arc occurs is detected by the temperature detection module, the temperature signal is transmitted to the operational amplifier U4B through a resistor R19, the operational amplifier U4B compares the temperature signal with a standard signal provided by a resistor R20, wherein the standard signal is the detected temperature signal in the distribution box, the operational amplifier U4B outputs a comparison signal, when the comparison signal conducts the triode Q1, the comparison signal indicates that the arc occurs but the temperature change is not caused, and the safety of the distribution box is not affected by the arc at the moment, when the operational amplifier U4B switches on the diode D1, it indicates that the arc is present, temperature change is caused, and the safety of the distribution box is affected, at this time, the arc signal is subjected to and operation by the diode D3, the temperature signal is subjected to and operation by the diode D1, the and circuit formed by the diode D4, the diode D6, and the resistor R22, and then an and signal is output, the and signal is switched on by the secondary detector through the capacitor C4 and the thyristor Q9, the secondary detector divides the current signal detected by the current detection module into two paths through the resistor R6 and transmits the two paths to the operational amplifier U1B, one path is transmitted to the non-inverting terminal of the operational amplifier U1B, the other path is transmitted to the inverting terminal of the operational amplifier U1B through the resistor R5 and the capacitor C3, the operational amplifier U1B performs subtraction operation on the two paths of current signals to output a difference signal, that is the current change at this time, the difference signal is transmitted to the operational amplifier U5B for zero-crossing comparison, when the diode D9 is switched on the distribution box U5B, that is, the difference signal at this time is positive, the current in the distribution box increases, then the diode D9 transmits the difference signal to the module processing circuit through the 2 pin and 3 pin of the switch S1 through the capacitor C7 and the thyristor Q11, and when the operational amplifier U5B turns on the transistor Q8, that is, the difference signal at this time is negative, the current in the distribution box decreases, the transistor Q8 turns on the thyristor Q11 through the capacitor C8, and the transistor Q8 turns on the relay K1 at the same time, the relay K1 connects the 2 pin and 1 pin of the switch S1, that is, the 2 pin disconnects from the 3 pin, and at this time, the thyristor Q11 transmits the difference signal to the module processing circuit, wherein the data detected by the current detection module, the temperature detection module, and the arc detection module are converted into the current signal in analog state through the a/D converter, respectively, Temperature signal, arc signal.
The module processing circuit comprises an operational amplifier U3B, the inverting terminal of the operational amplifier U3B is respectively connected with the anode of a thyristor Q10, one end of a resistor R23 and the other end of a pin 3 of a switch S1 in the module transferring circuit, the output terminal of the operational amplifier U3B is respectively connected with the other end of a resistor R23, the base of a triode Q6, one end of a resistor R6, the anode of a thyristor Q7 and a pin 1 of a switch S1 in the module transferring circuit, the collector of a triode Q2 is respectively connected with one end of a resistor R9 and the anode of a diode D8, the emitter of a triode Q2 is connected with one end of a resistor R11, the emitter of a triode Q6 is respectively connected with the other end of a resistor R10, the other end of a resistor R9, one end of a resistor R13, one end of a resistor R14, one end of a resistor R16, the emitter of a resistor R16 and the emitter of a triode Q16 in the module transferring circuit are respectively connected with a positive power supply, and the cathode of a diode VCC, A control electrode of the thyristor Q10, a collector of the transistor Q6 is connected to one end of the resistor R12 and an anode of the diode D2, a cathode of the diode D2 is connected to one end of the capacitor C5 and a control electrode of the thyristor Q7, a cathode of the thyristor Q7 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to the other end of the resistor R13 and a base of the transistor Q3, a collector of the transistor Q3 is connected to the other end of the resistor R14 and a base of the transistor Q4, a collector of the transistor Q4 is connected to the other end of the resistor R16, an emitter of the transistor Q4 is connected to a cathode of the regulator D7, the other end of the resistor R17 and one end of the resistor R25, the other end of the resistor R25 is connected to a pin 1 of the AND gate U7A, a pin 16 of the AND gate U7A is connected to an anode of the diode D6 in the module transferring circuit, and an output end of the gate U7A is connected to a cathode of the AND gate Q10 and a cathode of the switch transferring module Q29 and a switch transferring module, One end of a resistor R24, the other end of the resistor R24 is connected with the in-phase end of an operational amplifier U6B, the output end of the operational amplifier U6B is respectively connected with the inverting end of the operational amplifier U6B and a monitoring module, the anode of a voltage regulator tube D7 is respectively connected with the emitter of a triode Q3, the other end of a capacitor C5, the other end of a capacitor C6, the other end of a resistor R12, the in-phase end of an operational amplifier U3B, the other end of a resistor R11 and the other end of a capacitor C4 in a module actuating circuit and connected in parallel with the ground;
the module processing circuit utilizes a triode Q2 and a triode Q1 to receive a difference signal transmitted by a thyristor Q11 through a pin 3 of a switch S1, utilizes an operational amplifier U3B to receive a difference signal transmitted by a thyristor Q11 through a pin 1 of a switch S1, when the operational amplifier U3B reverses the received difference signal, namely the difference signal of a negative value is converted into a positive value, then the triode Q2 and a triode Q1 judge the difference signal, when the difference signal conducts the triode Q6, the current change in the distribution box is small, namely the electric arc does not have great influence on the distribution box, the triode Q6 conducts the thyristor Q7 through a diode D2 and a capacitor C5, the difference signal is transmitted to the triode Q3 and the triode Q4 through the difference signal to be amplified, the amplified difference signal is maintained in a certain range through a voltage stabilizing tube D7, and the AND gate U7A performs arithmetic operation on the difference signal and the reminding signal output by the module regulating circuit and the module Signal, and gate U7A exports the warning signal to the monitoring module, thereby remind, and when the difference signal switched on triode Q2, it changes greatly to show the electric current in the block terminal this moment, triode Q2 passes through diode D8 this moment, electric capacity C6 switches on thyristor Q10, the difference signal this moment is as emergency signal, and utilize emergency signal to switch on the switch operation module, make the switch operation module carry out corresponding action, emergency signal exports the monitoring module through fortune amplifier U6B, remind to need to maintain and protect the block terminal.
When the invention is used, the module transferring circuit comprises a primary detector and a secondary detector, an arc signal is transmitted to an operational amplifier U2B through a resistor R1 to be amplified and is conducted on a thyristor Q5 through a diode D3 and a capacitor C1, a temperature signal is transmitted to an operational amplifier U4B through a resistor R19, the operational amplifier U4B compares the temperature signal with a standard signal provided by a resistor R20, the operational amplifier U4B outputs a comparison signal, when the triode Q1 is conducted through the comparison signal, the arc does not affect the safety of the distribution box, when the diode D1 is conducted through the operational amplifier U4B, the arc signal is conducted on the secondary detector through the capacitor C4 and the thyristor Q9 through the diode D1, the diode D6 and an AND gate circuit consisting of the resistor R22 at the moment, and the secondary detector transmits a current signal detected by the current detection module to the operational amplifier U B through the resistor R3623, the operational amplifier U1B outputs a difference signal by subtracting the two current signals, and transmits the difference signal to the operational amplifier U5B for zero-cross comparison, when the operational amplifier U5B conducts the diode D9, the diode D9 transmits the difference signal to the module processing circuit through the 2 pin and 3 pin of the switch S1 through the capacitor C7 and the thyristor Q11, when the operational amplifier U5B conducts the transistor Q8, the transistor Q8 conducts the thyristor Q11 through the capacitor C8, the transistor Q8 conducts the relay K1 at the same time, the relay K1 connects the 2 pin and 1 pin of the switch S1, the transistor Q11 transmits the difference signal to the module processing circuit, the operational amplifier U3B in the module processing circuit receives the difference signal for inversion, then the transistor Q2 and the transistor Q1 judges the difference signal, when the difference signal conducts the transistor Q6, then the triode Q6 conducts the thyristor Q7 through the diode D2 and the capacitor C5, the difference signal is transmitted to the triode Q3 and the triode Q4 through the difference signal to be amplified, the voltage regulator tube D7 is used for maintaining the amplified difference signal within a certain range, the and gate U7A conducts the difference signal and the and signal output by the module transferring circuit to output a reminding signal after conducting and operation, the and gate U7A outputs the reminding signal to the monitoring module, when the difference signal conducts the triode Q2, the triode Q2 conducts the thyristor Q10 through the diode D8 and the capacitor C6, and conducts the switch operation module through the emergency signal, so that the switch operation module executes corresponding action, and the emergency signal is output to the monitoring module through the operational amplifier U6B to remind that maintenance and protection are needed for the distribution box.
The invention achieves the following effects:
(1) the current detection module, the temperature detection module and the arc detection module which are arranged in the distribution box are mobilized and processed by arranging the module mobilizing circuit, namely, the data received by the monitoring module are reduced, the current signal, the temperature signal and the arc signal are operated, and the current change in the distribution box is judged by utilizing the module processing circuit, namely, whether the distribution box is in a dual state or in a safe state is judged, and the linkage of the modules in the distribution box is realized by correspondingly starting the switch operation module, so that the problem that the safety of the distribution box is not guaranteed when the monitoring module has the problems of program flight or faults is avoided, and the safety of the distribution box is effectively guaranteed;
(2) the module transferring circuit is arranged to perform different operations and comparisons on current signals, temperature signals and arc signals detected by the current detection module, the temperature detection module and the arc detection module, so that the detected data are processed, namely, the technical effect of reducing the data received by the monitoring module is realized, and the problem that if an emergency situation exists, the monitoring module can only process the received data after the received data are processed, so that the safety of the distribution box is threatened is avoided;
(3) set up the state that module processing circuit judged in the block terminal to when the electric current change in the block terminal was great, open switch operation module and guarantee the safety of distribution case, realize linking the module of distribution case promptly, thereby reduce the dependence of distribution case to monitoring module, and output warning signal and emergency signal, come to show monitoring module received information through the display module, and then improve the security of distribution case.
Claims (6)
1. The utility model provides a detection and coordinated control device of block terminal, a serial communication port, the device includes module transfer circuit, module processing circuit, module transfer circuit utilizes the electric arc signal of electric arc detection module output compares the temperature signal that temperature detection module detected to obtain the comparison signal, and utilize comparison signal and electric arc signal to calculate the current signal that current detection module detected, thereby output difference signal, and export difference signal to module processing circuit, thereby module processing circuit then judges the difference signal of module transfer circuit output after thereby output warning signal and emergency signal to the monitoring module.
2. The detecting and linkage control device of claim 1, wherein the module transferring circuit comprises a primary detector and a secondary detector, the primary detector compares the temperature signal detected by the temperature detecting module with the arc signal output by the arc detecting module to obtain a comparison signal, and turns on the secondary detector after performing and operation with the arc signal, the secondary detector subtracts the current signal detected by the current detecting module to output a difference signal, determines the difference signal, and finally outputs the difference signal to the module processing circuit.
3. The detection and linkage control device of the distribution box according to claim 2, wherein the preliminary detector comprises a resistor R1, one end of the resistor R1 is connected with the arc detection module, the other end of the resistor R1 is connected with the in-phase end of the operational amplifier U2B, the inverting end of the operational amplifier U2B is connected with one end of the resistor R4 and one end of the resistor R26, the other end of the resistor R4 is connected with the output end of the operational amplifier U2B and the anode of the diode D3, the cathode of the diode D3 is connected with one end of the capacitor C1 and the control electrode of the thyristor Q5, the anode of the thyristor Q5 is connected with the temperature detection module, the cathode of the thyristor Q5 is connected with one end of the resistor R19, the other end of the resistor R19 is connected with the in-phase end of the operational amplifier U4B, the inverting end of the operational amplifier U4B is connected with one end of the resistor R20, the other end of the resistor R20 is connected with the standard signal, and the output end of the operational amplifier U4R 4B is connected with one end of the resistor R27, The current detection circuit comprises a base electrode of a triode Q1, an anode of a diode D1, a cathode of a diode D1 and a cathode of a diode D4, an anode of a diode D4 is respectively connected with one end of a resistor R22, an anode of a diode D6, one end of a capacitor C4 and a control electrode of a thyristor Q9, the other end of a resistor R22 is respectively connected with the other end of the resistor R27, an emitter of the triode Q1 and a positive power supply VCC, a collector of the triode Q1 is connected with one end of a resistor R21, the other end of the resistor R21 is connected with one end of a capacitor C2, the other end of the capacitor C2 is respectively connected with the other end of the capacitor C4, the other end of the capacitor C1 and the other end of a resistor R26, and an anode of the thyristor Q9 is connected with a current detection module.
4. The detecting and linking control device of a distribution box according to claim 2, wherein said secondary detector comprises a resistor R6, one end of the resistor R6 is connected to the cathode of the thyristor Q9 in the primary detector, the other end of the resistor R6 is connected to one end of the resistor R5, the in-phase end of the operational amplifier U1B and one end of the resistor R7, the inverting end of the operational amplifier U1B is connected to one end of the capacitor C3, one end of the resistor R8 and the other end of the resistor R5, the output end of the operational amplifier U1B is connected to the other end of the resistor R8, the inverting end of the operational amplifier U5B and the anode of the thyristor Q11, the output end of the operational amplifier U5B is connected to one end of the resistor R18, the base of the triode Q8 and the anode of the diode D9, the cathode of the diode D9 is connected to one end of the capacitor C7, the control pole of the Q11, one end of the capacitor C8, one end of the triode Q8 and the collector of the thyristor K1, the cathode of the thyristor Q11 is connected with one end of the 2 pin of the switch S1, the other end of the 2 pin of the switch S1 is connected with one end of the 3 pin of the switch S1, the emitter of the triode Q8 is respectively connected with the other end of the resistor R18 and the emitter of the triode Q1 in the preliminary detector and connected with a positive power supply VCC, the other end of the relay K1 is respectively connected with the other end of the resistor R7, the other end of the capacitor C8, the other end of the capacitor C3, the same phase end of the operational amplifier U5B and the other end of the capacitor C4 in the preliminary detector and connected with the ground in parallel.
5. The detecting and linkage control device of the distribution box according to claim 1, wherein the module processing circuit judges the difference signal outputted from the module transferring circuit, generates the reminding signal and the emergency signal according to the amplitude of the difference signal, and outputs the reminding signal and the emergency signal to the monitoring module.
6. The detecting and linking control device of claim 5, wherein the module processing circuit includes an operational amplifier U3B, the inverting terminal of the operational amplifier U3B is connected to the anode of the thyristor Q10, one terminal of the resistor R23, and the other terminal of the 3 pins of the switch S1 in the module tuning circuit, respectively, the output terminal of the operational amplifier U3B is connected to the other terminal of the resistor R23, the base of the transistor Q6, one terminal of the resistor R6, the anode of the thyristor Q7, and the 1 pin of the switch S1 in the module tuning circuit, the collector of the transistor Q2 is connected to one terminal of the resistor R9 and the anode of the diode D8, the emitter of the transistor Q2 is connected to one terminal of the resistor R11, the emitter of the transistor Q6 is connected to the other terminal of the resistor R10, the other terminal of the resistor R9, one terminal of the resistor R13, one terminal of the resistor R14, one terminal of the resistor R16, one terminal of the emitter of the resistor R17, and the emitter of the resistor VCC circuit is connected to the power supply of the power supply Q1, the negative electrode of the diode D8 is connected with one end of the capacitor C6 and the control electrode of the thyristor Q10, the collector of the triode Q6 is connected with one end of the resistor R12 and the positive electrode of the diode D2, the negative electrode of the diode D2 is connected with one end of the capacitor C5 and the control electrode of the thyristor Q7, the cathode of the thyristor Q7 is connected with one end of the resistor R15, the other end of the resistor R15 is connected with the other end of the resistor R13 and the base of the triode Q13, the collector of the triode Q13 is connected with the other end of the resistor R13, the emitter of the triode Q13 is connected with the negative electrode of the voltage regulator D13, the other end of the resistor R13 and one end of the resistor R13, the other end of the resistor R13 is connected with the pin 1 of the AND gate U7 13, the pin 16 of the AND gate U7 is connected with the positive electrode of the diode D13 in the module shunt circuit, and the cathode of the output terminal Q13 of the AND gate Q13, The circuit comprises a switch transferring module and one end of a resistor R24, wherein the other end of the resistor R24 is connected with the in-phase end of an operational amplifier U6B, the output end of the operational amplifier U6B is respectively connected with the inverting end of the operational amplifier U6B and a monitoring module, the anode of a voltage regulator tube D7 is respectively connected with the emitter of a triode Q3, the other end of a capacitor C5, the other end of a capacitor C6, the other end of a resistor R12, the in-phase end of an operational amplifier U3B, the other end of a resistor R11 and the other end of a capacitor C4 in a module transferring circuit, and the other ends are connected in parallel and grounded.
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| CN114400625B (en) | 2023-09-22 |
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