CN203658498U - A multifunctional electric power monitor - Google Patents
A multifunctional electric power monitor Download PDFInfo
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- CN203658498U CN203658498U CN201320861027.0U CN201320861027U CN203658498U CN 203658498 U CN203658498 U CN 203658498U CN 201320861027 U CN201320861027 U CN 201320861027U CN 203658498 U CN203658498 U CN 203658498U
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Abstract
According to a multifunctional electric power monitor of the utility model, current parameters are acquired through a first acquisition circuit; voltage parameters are acquired through a second acquisition circuit; a master control module obtains data of a frequency, an active power, a reactive power, electric energy, power factors, etc. through the current parameters and the voltage parameters; and the data is output as sampling data through a communication circuit, and the output data is displayed through a decoding display circuit; therefore, the multifunctional electric power monitor of the utility model has a function of carrying out simultaneous measurement on a current, a voltage, the frequency, the active power, the reactive power, the electric energy, the power factor, etc. in a circuit; working personnel do not need to read meter on site; and the multifunctional electric power monitor can transmit the sampling data to a distant monitoring host machine through the communication circuit. According to the multifunctional electric power monitor of the utility model, key values of keys are acquired through a key value input circuit; the master control module can obtain demands of operation personnel according to the obtained key values; and functions corresponding to the demands of the operation personnel are started.
Description
Technical field
The utility model relates to a kind of Kind of Multifunctional Power Meter.Specifically a kind of Kind of Multifunctional Power Meter for electric energy quality monitoring.
Background technology
In modern industrialization society, electric energy has become a kind of indispensable basic power source, along with accessing increase and the multifarious development of electric load of consumer quantity in electrical network, it is more and more serious that the quality of power supply in electrical network is subject to the impact of consumer, many novel electrical equipments are in operation and can inject various electromagnetic interference (EMI) to electric system, the harm that the normal work of the safe operation on electric system and subscriber equipment causes constantly increases with impact, meanwhile, all kinds of control system, computer installation, the quality of power supply sensitive equipments such as the intelligent production line of electronic product are but more and more higher to the requirement of the quality of power supply, therefore, power quality problem becomes increasingly conspicuous, cause the generally attention of power supply department and vast power consumer.People start to recognize, power department is just transferred to power consumer in full by electric energy, and guarantee that the idea that certain power supply continuity can satisfy the demands is very incomplete, in Operation of Electric Systems and commercial process, the requirement of the quality of power supply progressively expanded and deepened, improving the quality of power supply and become the basic demand that guarantees using electricity system safe and stable operation.
Improve the quality of power supply, be unable to do without the isoparametric collection of electric current, voltage, frequency, active power, reactive power, electric energy and analysis to using electricity system, only in this way could find in time the abnormal conditions of electric system, realize the reasonable distribution of electric energy, ensure the safe operation of consumer.Therefore, in occasions such as electric system, industrial and mining enterprises, communal facility, intelligent buildings, need power application instrument that the quality of power supply is measured and managed, and traditional electric instrument can only carry out scene demonstration conventionally, need staff to check one by one to scene, both wasted time and energy, and can not effectively the quality of power supply be measured and be managed again.As the current three-phase distribution transformer monitoring instrument of the conventional power supply parameter such as electric current, voltage that is used for detecting user, due to equipment and technical deficiency, can only manually copy and accept, the accuracy of wasting time and energy is also not high, and the relevant power supply parameter such as voltage, electric current information can not be delivered on the workbench of power department in time.And existing remote transmission meter does not possess the monitoring function to supply current, voltage etc., can only play a timing, simple communication.Along with the requirement to the quality of power supply improves constantly, existing monitoring and the mode of intelligence transmission, can not meet the needs of development.
Utility model content
For this reason, technical problem to be solved in the utility model is to lack in prior art can monitor the equipment that the quality of power supply can be transmitted the power supply parameter such as voltage, the electric current information of collection again simultaneously, can monitor and the Kind of Multifunctional Power Meter of the power supply parameter that can real-time Transmission gathers the quality of power supply thereby provide a kind of.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
The utility model provides a kind of Kind of Multifunctional Power Meter, comprising:
The first Acquisition Circuit, for the current parameters of Acquisition Circuit;
The second Acquisition Circuit, for the voltage parameter of Acquisition Circuit;
Main control module, its current parameters input end is connected with the output terminal of described the first Acquisition Circuit, obtains current parameters from described the first Acquisition Circuit; Its voltage parameter input end is connected with the output terminal of described the second Acquisition Circuit, obtains voltage parameter from described the second Acquisition Circuit; And according to frequency, active power, reactive power, electric energy, power factor in current parameters, voltage parameter acquisition cuicuit, and current parameters, voltage parameter, frequency, active power, reactive power, electric energy, power factor are exported as sampled data;
Telecommunication circuit, is connected with the signal output part of described main control module, for realizing main control module and the transmission of outside signal;
Coding display circuit, is connected with the demonstration output terminal of described main control module, and the sampled data of obtaining from described main control module is shown;
Key assignments input circuit, for gathering button value, and transfers to key assignments the key assignments input end of described main control module.
Kind of Multifunctional Power Meter described in the utility model, described telecommunication circuit comprises 485 serial communication circuits and signal conditioning circuit;
Described 485 serial communication circuits are for realizing the two-way communication of described main control module and monitoring host computer;
Described signal conditioning circuit transfers to PLC controller for the sampled data of obtaining from described main control module is nursed one's health.
Kind of Multifunctional Power Meter described in the utility model, described coding display circuit comprises display control circuit, power-off latch cicuit and LED display circuit;
Described display control circuit is controlled described LED display circuit and is driven charactron to show sampled data from described main control module obtains sampled data;
Described power-off latch cicuit carries out latch to the sampled data of obtaining from described main control module after down circuitry, and shows sampled data by described LED display circuit driving LED.
Kind of Multifunctional Power Meter described in the utility model, described main control module comprises intelligent chip SU1, described intelligent chip SU1 comprises 100 pins;
Described the first Acquisition Circuit comprises the first current transformer, the second current transformer and the 3rd current transformer, for the three-phase current parameter of difference Acquisition Circuit, and the output terminal of described the first current transformer is connected with the pin 84 of described intelligent chip SU1, the output terminal of described the second current transformer is connected with the pin 83 of described intelligent chip SU1, and the output terminal of described the 3rd current transformer is connected with the pin 82 of described intelligent chip SU1; The pin 84 of described intelligent chip SU1, pin 83, pin 82 are the current parameters input end of described main control module;
Described the second Acquisition Circuit comprises the first voltage collection circuit, second voltage Acquisition Circuit and tertiary voltage Acquisition Circuit, for the three-phase voltage parameter of difference Acquisition Circuit; And the output terminal of described the first voltage collection circuit is connected with the pin 80 of described intelligent chip SU1, the output terminal of described second voltage Acquisition Circuit is connected with the pin 79 of described intelligent chip SU1, and the output terminal of described tertiary voltage Acquisition Circuit is connected with the pin 78 of described intelligent chip SU1; The pin 80 of described intelligent chip SU1, pin 79, pin 78 are the voltage parameter input end of described main control module.
Kind of Multifunctional Power Meter described in the utility model, described 485 serial communication circuits comprise communication chip UU1 and photoelectric coupled device UU2 and UU3; And the pin 5 of described intelligent chip SU1 is connected with the positive pole of the light emitting diode in photoelectric coupled device UU2, the pin 71 of described intelligent chip SU1 is connected with the collector of the phototriode of photoelectric coupled device UU3, the collector of the phototriode in described photoelectric coupled device UU2 is connected with the pin 4 of described communication chip UU1, and the positive pole of the light emitting diode in described photoelectric coupled device UU3 is connected with the pin 1 of described communication chip UU1;
Described signal conditioning circuit comprises photoelectric coupled device UA1, UA2, UA3, UA4;
The positive electrode of the light emitting diode of described photoelectric coupled device UA1 is connected with the pin 34 of described intelligent chip SU1, the positive electrode of the light emitting diode of described photoelectric coupled device UA2 is connected with the pin 31 of described intelligent chip SU1, the positive electrode of the light emitting diode of described photoelectric coupled device UA3 is connected with the pin 30 of described intelligent chip SU1, and the positive electrode of the light emitting diode of described photoelectric coupled device UA4 is connected with the pin 21 of described intelligent chip SU1.
Kind of Multifunctional Power Meter described in the utility model, described display control circuit comprises chip U1, and the pin 1 of described chip U1 is all connected with the pin 19 of described intelligent chip SU1 with pin 2, and pin 8 is connected with the pin 17 of described intelligent chip SU1;
Described power-off latch cicuit comprises chip U2, and the pin 14 of described chip U2 is connected with the pin 19 of described intelligent chip SU1, and pin 11 is connected with the pin 20 of described intelligent chip SU1;
Described LED display circuit comprises charactron LED1, LED2, LED3, LED4, LED5, LED6, triode V1, V2, V3, V4, V5, V6, V7, V8, resistance R 9, R10, R11, R12, R13, R14, R15, R16;
The pin 3 of described chip U1 is connected with the base stage of triode V1 through resistance R 9, and the emitter of triode V1 is connected with the pin 11 of charactron LED1, the pin 11 of LED2, the pin 11 of LED3, pin 7, the pin 7 of LED5 and the pin 7 of LED6 of LED4 simultaneously; The pin 4 of described chip U1 is connected with the base stage of triode V2 through resistance R 10, and the emitter of triode V2 is connected with the pin 7 of charactron LED1, the pin 7 of LED2, the pin 7 of LED3, pin 6, the pin 6 of LED5 and the pin 6 of LED6 of LED4 simultaneously; The pin 5 of described chip U1 is connected with the base stage of triode V3 through resistance R 11, and the emitter of triode V3 is connected with the pin 4 of charactron LED1, the pin 4 of LED2, the pin 4 of LED3, pin 4, the pin 4 of LED5 and the pin 4 of LED6 of LED4 simultaneously; The pin 6 of described chip U1 is connected with the base stage of triode V4 through resistance R 12, and the emitter of triode V4 is connected with the pin 2 of charactron LED1, the pin 2 of LED2, the pin 2 of LED3, pin 1, the pin 1 of LED5 and the pin 1 of LED6 of LED4 simultaneously; The pin 10 of described chip U1 is connected with the base stage of triode V5 through resistance R 13, and the emitter of triode V5 is connected with the pin 1 of charactron LED1, the pin 1 of LED2, the pin 1 of LED3, pin 3, the pin 3 of LED5 and the pin 3 of LED6 of LED4 simultaneously; The pin 11 of described chip U1 is connected with the base stage of triode V6 through resistance R 14, and the emitter of triode V6 is connected with the pin 10 of charactron LED1, the pin 10 of LED2, the pin 10 of LED3, pin 8, the pin 8 of LED5 and the pin 8 of LED6 of LED4 simultaneously; The pin 12 of described chip U1 is connected with the base stage of triode V7 through resistance R 15, and the emitter of triode V7 is connected with the pin 5 of charactron LED1, the pin 5 of LED2, the pin 5 of LED3, pin 9, the pin 9 of LED5 and the pin 9 of LED6 of LED4 simultaneously; The pin 13 of described chip U1 is connected with the base stage of triode V8 through resistance R 16, and the emitter of triode V8 is connected with the pin 3 of LED1, the pin 3 of LED2, the pin 3 of LED3, pin 2, the pin 2 of LED5 and the pin 2 of LED6 of LED4 simultaneously; And the emitter of described triode V1, V2, V3, V4, V5, V6, V7, V8 is connected with the negative pole of a light emitting diode respectively.
Kind of Multifunctional Power Meter described in the utility model, the output terminal of described key assignments input circuit is connected with the pin 16 of described intelligent chip SU1, and the pin 16 of described intelligent chip SU1 is the key assignments input end of described main control module.
Kind of Multifunctional Power Meter described in the utility model, described intelligent chip SU1 is 71M6513 chip, described chip U1 is SN74HC164D chip, described chip U2 is SN74HC595D chip, described communication chip UU1 is 6LB184 chip, described photoelectric coupled device UU2 and UU3 are NEC2501 chip, and described photoelectric coupled device UA1, UA2, UA3, UA4 are NEC2501 chip.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) Kind of Multifunctional Power Meter described in the utility model, by the current parameters in the first Acquisition Circuit Acquisition Circuit, by the voltage parameter in the second Acquisition Circuit Acquisition Circuit, and main control module is the data such as the frequency in can acquisition cuicuit, active power, reactive power, electric energy, power factor by the current parameters that obtains and voltage parameter, and above-mentioned data are exported through telecommunication circuit as sampled data, and by sampled data described in coding display Circuit display.Therefore, Kind of Multifunctional Power Meter described in the utility model has the electric current in circuit, voltage, frequency, active power, reactive power, electric energy, power factor etc. is carried out to simultaneously-measured function, be applicable to the Distributed Detection of transformer, genset, capacitor group and motor etc., and the field monitoring of electric power network, automation control system shows.Staff checks meter without scene, and Kind of Multifunctional Power Meter can be transferred to sampled data the monitoring host computer in a distant place by telecommunication circuit.Kind of Multifunctional Power Meter described in the utility model, gathers button value by key assignments input circuit, and main control module, according to the button value of obtaining, can obtain operating personnel's demand, and startup and the corresponding function of operating personnel's demand.
(2) Kind of Multifunctional Power Meter described in the utility model, realize the two-way communication of main control module and monitoring host computer by 485 serial communication circuits, such as the sampled data that main control module can be obtained transfers to monitoring host computer, also can be by communications such as the instructions of monitoring host computer to main control module, the transmitted in both directions that can realize related data information without operating personnel's execute-in-place, greatly reduces human cost.By signal conditioning circuit, after sampled data can being nursed one's health, become the signal that PLC controller can receive and transfer to PLC controller, thereby providing reference data for the operation of PLC controller.
(3) Kind of Multifunctional Power Meter described in the utility model, its coding display circuit comprises display control circuit, power-off latch cicuit and LED display circuit, display control circuit can be controlled LED display circuit driving LED and show sampled data from main control module obtains sampled data, if there is power-off, power-off latch can carry out latch to sampled data, and drives charactron to show sampled data by LED display circuit.Therefore, Kind of Multifunctional Power Meter described in the utility model, the sampled data of circuit can be presented to operating personnel in real time by coding display circuit, the parameters index of convenient operation personnel Real-time Obtaining circuit, the abnormal conditions of finding in time electrical network, equipment etc., are conducive to the even running of electrical network.And when occurring after disconnection fault, power-off latch cicuit also can carry out latch by sampled data, avoids loss of data, operating personnel can, according to the sampled data of latch, find the reason of fault and fix a breakdown as early as possible.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the structured flowchart of Kind of Multifunctional Power Meter described in embodiment 1;
Fig. 2 is the circuit theory diagrams of main control module described in embodiment 2;
Fig. 3 is the circuit theory diagrams of the first Acquisition Circuit described in embodiment 2;
Fig. 4 is the circuit theory diagrams of the second Acquisition Circuit described in embodiment 2;
Fig. 5 is the circuit theory diagrams of 485 serial communication circuits described in embodiment 2;
Fig. 6 is the circuit theory diagrams of signal conditioning circuit described in embodiment 2;
Fig. 7 is the circuit theory diagrams of display control circuit described in embodiment 2;
Fig. 8 is the circuit theory diagrams of power-off latch cicuit described in embodiment 2;
Fig. 9 is the circuit theory diagrams of LED display circuit described in embodiment 2;
Figure 10 is the circuit theory diagrams of key assignments input circuit described in embodiment 2.
In figure, Reference numeral is expressed as: 1-the first Acquisition Circuit, 2-the second Acquisition Circuit, 3-main control module, 4-telecommunication circuit, 5-coding display circuit, 6-key assignments input circuit, 41-485 serial communication circuit, 42-signal conditioning circuit, 51-display control circuit, 52-power-off latch cicuit, 53-LED display circuit.
Embodiment
The present embodiment provides a kind of Kind of Multifunctional Power Meter, as shown in Figure 1, comprising:
The first Acquisition Circuit 1, for the current parameters of Acquisition Circuit.
The second Acquisition Circuit 2, for the voltage parameter of Acquisition Circuit.
Key assignments input circuit 6, for gathering button value, and transfers to key assignments the key assignments input end of described main control module 3.
Kind of Multifunctional Power Meter described in the present embodiment, by the current parameters in the first Acquisition Circuit 1 Acquisition Circuit, by the voltage parameter in the second Acquisition Circuit 2 Acquisition Circuit, and main control module 3 is the data such as the frequency in can acquisition cuicuit, active power, reactive power, electric energy, power factor by the current parameters that obtains and voltage parameter, and export through telecommunication circuit 4 above-mentioned data as sampled data, and show described sampled data by coding display circuit 5.Therefore, described in the present embodiment, Kind of Multifunctional Power Meter has the function that the electric current in circuit, voltage, frequency, active power, reactive power, electric energy, power factor etc. are measured simultaneously, be applicable to the Distributed Detection of transformer, genset, capacitor group and motor etc., and the field monitoring of electric power network, automation control system shows.Staff checks meter without scene, and Kind of Multifunctional Power Meter can be transferred to sampled data the monitoring host computer in a distant place by telecommunication circuit 4.Kind of Multifunctional Power Meter described in the present embodiment, also gathers button value by key assignments input circuit 6, and main control module 3, according to the button value of obtaining, can obtain operating personnel's demand, and startup and the corresponding function of operating personnel's demand.
As one preferred embodiment, the Kind of Multifunctional Power Meter described in the present embodiment, described telecommunication circuit 4 comprises 485 serial communication circuits 41 and signal conditioning circuit 42.
Described 485 serial communication circuits 41 are for realizing the two-way communication of described main control module 3 and monitoring host computer.
Described signal conditioning circuit 42 transfers to PLC controller for the sampled data of obtaining from described main control module 3 is nursed one's health.
Kind of Multifunctional Power Meter described in the present embodiment, realize the two-way communication of main control module 3 and monitoring host computer by 485 serial communication circuits 41, such as the sampled data that main control module 3 can be obtained transfers to monitoring host computer, also can be by communications such as the instructions of monitoring host computer to main control module 3, the transmitted in both directions that can realize related data information without operating personnel's execute-in-place, greatly reduces human cost.By signal conditioning circuit 42, after sampled data can being nursed one's health, become the signal that PLC controller can receive and transfer to PLC controller, thereby providing reference frame for the operation of PLC controller.
As one preferred embodiment, the Kind of Multifunctional Power Meter described in the present embodiment, described coding display circuit 5 comprises display control circuit 51, power-off latch cicuit 52 and LED display circuit 53.
Described display control circuit 51 is controlled described LED display circuit 53 driving LED and is shown sampled data from described main control module 3 obtains sampled data.
Described power-off latch cicuit 52 carries out latch to the sampled data of obtaining from described main control module 3 after down circuitry, and drives charactron to show sampled data by described LED display circuit 53.
Kind of Multifunctional Power Meter described in the present embodiment, the sampled data of circuit can be presented to operating personnel in real time by coding display circuit 5, the parameters index of convenient operation personnel Real-time Obtaining circuit, finds the abnormal conditions of electrical network, equipment etc. to be conducive to the even running of electrical network in time.And when occurring after disconnection fault, power-off latch cicuit 52 also can carry out latch by sampled data, avoids loss of data, operating personnel can, according to the sampled data of latch, find the reason of fault and fix a breakdown as early as possible.
On the basis of embodiment 1, the Kind of Multifunctional Power Meter described in the present embodiment, as shown in Figure 2, described main control module 3 comprises intelligent chip SU1, described intelligent chip SU1 comprises 100 pins.
As shown in Figure 2 and Figure 3, described the first Acquisition Circuit 1 comprises the first current transformer, the second current transformer and the 3rd current transformer, for the three-phase current parameter of difference Acquisition Circuit, and the output terminal of described the first current transformer is connected with the pin 84 of described intelligent chip SU1, the output terminal of described the second current transformer is connected with the pin 83 of described intelligent chip SU1, and the output terminal of described the 3rd current transformer is connected with the pin 82 of described intelligent chip SU1; The pin 84 of described intelligent chip SU1, pin 83, pin 82 are the current parameters input end of described main control module 3.
As shown in Figure 2, Figure 4 shows, described the second Acquisition Circuit 2 comprises the first voltage collection circuit, second voltage Acquisition Circuit and tertiary voltage Acquisition Circuit, for the three-phase voltage parameter of difference Acquisition Circuit; And the output terminal of described the first voltage collection circuit is connected with the pin 80 of described intelligent chip SU1, the output terminal of described second voltage Acquisition Circuit is connected with the pin 79 of described intelligent chip SU1, and the output terminal of described tertiary voltage Acquisition Circuit is connected with the pin 78 of described intelligent chip SU1; The pin 80 of described intelligent chip SU1, pin 79, pin 78 are the voltage parameter input end of described main control module 3.
As shown in Fig. 2, Fig. 5, the Kind of Multifunctional Power Meter described in the present embodiment, described 485 serial communication circuits 41 comprise communication chip UU1 and photoelectric coupled device UU2 and UU3; And the pin 5 of described intelligent chip SU1 is connected with the positive pole of the light emitting diode in photoelectric coupled device UU2, the pin 71 of described intelligent chip SU1 is connected with the collector of the phototriode of photoelectric coupled device UU3, the collector of the phototriode in described photoelectric coupled device UU2 is connected with the pin 4 of described communication chip UU1, and the positive pole of the light emitting diode in described photoelectric coupled device UU3 is connected with the pin 1 of described communication chip UU1.
Kind of Multifunctional Power Meter described in the present embodiment, described 485 serial communication circuits 41 are the communication chip UU1 with antisurge ability and photoelectric coupled device UU2 and UU3 by employing, realized with Kind of Multifunctional Power Meter in other circuit object of isolating completely.Having guaranteed that other circuit can be stablized is operated under electromagnetic environment rugged environment exactly, has guaranteed that communication port and other circuit are not destroyed by external lightning pulse, have improved the viability of equipment.
As shown in Fig. 2, Fig. 6, described signal conditioning circuit 42 comprises photoelectric coupled device UA1, UA2, UA3, UA4.
The positive electrode of the light emitting diode of described photoelectric coupled device UA1 is connected with the pin 34 of described intelligent chip SU1, the positive electrode of the light emitting diode of described photoelectric coupled device UA2 is connected with the pin 31 of described intelligent chip SU1, the positive electrode of the light emitting diode of described photoelectric coupled device UA3 is connected with the pin 30 of described intelligent chip SU1, and the positive electrode of the light emitting diode of described photoelectric coupled device UA4 is connected with the pin 21 of described intelligent chip SU1.
Kind of Multifunctional Power Meter described in the present embodiment, as shown in Fig. 2, Fig. 7, described display control circuit 51 comprises chip U1, and the pin 1 of described chip U1 is all connected with the pin 19 of described intelligent chip SU1 with pin 2, and pin 8 is connected with the pin 17 of described intelligent chip SU1.
As shown in Fig. 2, Fig. 8, Kind of Multifunctional Power Meter described in the present embodiment, described power-off latch cicuit 52 comprises chip U2, and the pin 14 of described chip U2 is connected with the pin 19 of described intelligent chip SU1, and pin 11 is connected with the pin 20 of described intelligent chip SU1.
As shown in Fig. 2, Fig. 7, Fig. 8, Fig. 9, Kind of Multifunctional Power Meter described in the present embodiment, described LED display circuit 53 comprises charactron LED1, LED2, LED3, LED4, LED5, LED6, triode V1, V2, V3, V4, V5, V6, V7, V8, resistance R 9, R10, R11, R12, R13, R14, R15, R16.
The pin 3 of described chip U1 is connected with the base stage of triode V1 through resistance R 9, and the emitter of triode V1 is connected with the pin 11 of charactron LED1, the pin 11 of LED2, the pin 11 of LED3, pin 7, the pin 7 of LED5 and the pin 7 of LED6 of LED4 simultaneously; The pin 4 of described chip U1 is connected with the base stage of triode V2 through resistance R 10, and the emitter of triode V2 is connected with the pin 7 of charactron LED1, the pin 7 of LED2, the pin 7 of LED3, pin 6, the pin 6 of LED5 and the pin 6 of LED6 of LED4 simultaneously; The pin 5 of described chip U1 is connected with the base stage of triode V3 through resistance R 11, and the emitter of triode V3 is connected with the pin 4 of LED1, the pin 4 of LED2, the pin 4 of LED3, pin 4, the pin 4 of LED5 and the pin 4 of LED6 of LED4 simultaneously; The pin 6 of described chip U1 is connected with the base stage of triode V4 through resistance R 12, and the emitter of triode V4 is connected with the pin 2 of charactron LED1, the pin 2 of LED2, the pin 2 of LED3, pin 1, the pin 1 of LED5 and the pin 1 of LED6 of LED4 simultaneously; The pin 10 of described chip U1 is connected with the base stage of triode V5 through resistance R 13, and the emitter of triode V5 is connected with the pin 1 of charactron LED1, the pin 1 of LED2, the pin 1 of LED3, pin 3, the pin 3 of LED5 and the pin 3 of LED6 of LED4 simultaneously; The pin 11 of described chip U1 is connected with the base stage of triode V6 through resistance R 14, and the emitter of triode V6 is connected with the pin 10 of charactron LED1, the pin 10 of LED2, the pin 10 of LED3, pin 8, the pin 8 of LED5 and the pin 8 of LED6 of LED4 simultaneously; The pin 12 of described chip U1 is connected with the base stage of triode V7 through resistance R 15, and the emitter of triode V7 is connected with the pin 5 of charactron LED1, the pin 5 of LED2, the pin 5 of LED3, pin 9, the pin 9 of LED5 and the pin 9 of LED6 of LED4 simultaneously; The pin 13 of described chip U1 is connected with the base stage of triode V8 through resistance R 16, and the emitter of triode V8 is connected with the pin 3 of charactron LED1, the pin 3 of LED2, the pin 3 of LED3, pin 2, the pin 2 of LED5 and the pin 2 of LED6 of LED4 simultaneously; And the emitter of described triode V1, V2, V3, V4, V5, V6, V7, V8 is connected with the negative pole of a light emitting diode respectively.
As shown in Fig. 2, Figure 10, the Kind of Multifunctional Power Meter described in the present embodiment, the output terminal of described key assignments input circuit 6 is connected with the pin 16 of described intelligent chip SU1, and the pin 16 of described intelligent chip SU1 is the key assignments input end of described main control module 3.
As the optional embodiment of one, Kind of Multifunctional Power Meter described in the present embodiment, described intelligent chip SU1 is 71M6513 chip, described chip U1 is SN74HC164D chip, described chip U2 is SN74HC595D chip, described communication chip UU1 is 6LB184 chip, and described photoelectric coupled device UU2 and UU3 are NEC2501 chip, and described photoelectric coupled device UA1, UA2, UA3, UA4 are NEC2501 chip.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also being given an example to all embodiments.And among the protection domain that the apparent variation of being extended out thus or variation are still created in the utility model.
Claims (8)
1. a Kind of Multifunctional Power Meter, is characterized in that, comprising:
The first Acquisition Circuit (1), for the current parameters of Acquisition Circuit;
The second Acquisition Circuit (2), for the voltage parameter of Acquisition Circuit;
Main control module (3), its current parameters input end is connected with the output terminal of described the first Acquisition Circuit (1), obtains current parameters from described the first Acquisition Circuit (1); Its voltage parameter input end is connected with the output terminal of described the second Acquisition Circuit (2), obtains voltage parameter from described the second Acquisition Circuit (2); And according to frequency, active power, reactive power, electric energy, power factor in current parameters, voltage parameter acquisition cuicuit, and current parameters, voltage parameter, frequency, active power, reactive power, electric energy, power factor are exported as sampled data;
Telecommunication circuit (4), is connected with the signal output part of described main control module (3), transmits with outside signal for realizing main control module (3);
Coding display circuit (5), is connected with the demonstration output terminal of described main control module (3), and the sampled data of obtaining from described main control module (3) is shown;
Key assignments input circuit (6), for gathering button value, and transfers to key assignments the key assignments input end of described main control module (3).
2. Kind of Multifunctional Power Meter according to claim 1, is characterized in that:
Described telecommunication circuit (4) comprises 485 serial communication circuits (41) and signal conditioning circuit (42);
Described 485 serial communication circuits (41) are for realizing the two-way communication of described main control module (3) and monitoring host computer;
Described signal conditioning circuit (42) transfers to PLC controller for the sampled data of obtaining from described main control module (3) is nursed one's health.
3. Kind of Multifunctional Power Meter according to claim 2, is characterized in that:
Described coding display circuit (5) comprises display control circuit (51), power-off latch cicuit (52) and LED display circuit (53);
Described display control circuit (51) is controlled described LED display circuit (53) and is driven charactron to show sampled data from described main control module (3) obtains sampled data;
Described power-off latch cicuit (52) carries out latch to the sampled data of obtaining from described main control module (3) after down circuitry, and shows sampled data by described LED display circuit (53) driving LED.
4. Kind of Multifunctional Power Meter according to claim 3, is characterized in that:
Described main control module (3) comprises intelligent chip SU1, and described intelligent chip SU1 comprises 100 pins;
Described the first Acquisition Circuit (1) comprises the first current transformer, the second current transformer and the 3rd current transformer, for the three-phase current parameter of difference Acquisition Circuit, and the output terminal of described the first current transformer is connected with the pin 84 of described intelligent chip SU1, the output terminal of described the second current transformer is connected with the pin 83 of described intelligent chip SU1, and the output terminal of described the 3rd current transformer is connected with the pin 82 of described intelligent chip SU1; The pin 84 of described intelligent chip SU1, pin 83, pin 82 are the current parameters input end of described main control module (3);
Described the second Acquisition Circuit (2) comprises the first voltage collection circuit, second voltage Acquisition Circuit and tertiary voltage Acquisition Circuit, for the three-phase voltage parameter of difference Acquisition Circuit; And the output terminal of described the first voltage collection circuit is connected with the pin 80 of described intelligent chip SU1, the output terminal of described second voltage Acquisition Circuit is connected with the pin 79 of described intelligent chip SU1, and the output terminal of described tertiary voltage Acquisition Circuit is connected with the pin 78 of described intelligent chip SU1; The pin 80 of described intelligent chip SU1, pin 79, pin 78 are the voltage parameter input end of described main control module (3).
5. Kind of Multifunctional Power Meter according to claim 4, is characterized in that:
Described 485 serial communication circuits (41) comprise communication chip UU1 and photoelectric coupled device UU2 and UU3; And the pin 5 of described intelligent chip SU1 is connected with the positive pole of the light emitting diode in photoelectric coupled device UU2, the pin 71 of described intelligent chip SU1 is connected with the collector of the phototriode of photoelectric coupled device UU3, the collector of the phototriode in described photoelectric coupled device UU2 is connected with the pin 4 of described communication chip UU1, and the positive pole of the light emitting diode in described photoelectric coupled device UU3 is connected with the pin 1 of described communication chip UU1;
Described signal conditioning circuit (42) comprises photoelectric coupled device UA1, UA2, UA3, UA4;
The positive electrode of the light emitting diode of described photoelectric coupled device UA1 is connected with the pin 34 of described intelligent chip SU1, the positive electrode of the light emitting diode of described photoelectric coupled device UA2 is connected with the pin 31 of described intelligent chip SU1, the positive electrode of the light emitting diode of described photoelectric coupled device UA3 is connected with the pin 30 of described intelligent chip SU1, and the positive electrode of the light emitting diode of described photoelectric coupled device UA4 is connected with the pin 21 of described intelligent chip SU1.
6. Kind of Multifunctional Power Meter according to claim 5, is characterized in that:
Described display control circuit (51) comprises chip U1, and the pin 1 of described chip U1 is all connected with the pin 19 of described intelligent chip SU1 with pin 2, and pin 8 is connected with the pin 17 of described intelligent chip SU1;
Described power-off latch cicuit (52) comprises chip U2, and the pin 14 of described chip U2 is connected with the pin 19 of described intelligent chip SU1, and pin 11 is connected with the pin 20 of described intelligent chip SU1;
Described LED display circuit (53) comprises charactron LED1, LED2, LED3, LED4, LED5, LED6, triode V1, V2, V3, V4, V5, V6, V7, V8, resistance R 9, R10, R11, R12, R13, R14, R15, R16;
The pin 3 of described chip U1 is connected with the base stage of triode V1 through resistance R 9, and the emitter of triode V1 is connected with the pin 11 of charactron LED1, the pin 11 of LED2, the pin 11 of LED3, pin 7, the pin 7 of LED5 and the pin 7 of LED6 of LED4 simultaneously; The pin 4 of described chip U1 is connected with the base stage of triode V2 through resistance R 10, and the emitter of triode V2 is connected with the pin 7 of charactron LED1, the pin 7 of LED2, the pin 7 of LED3, pin 6, the pin 6 of LED5 and the pin 6 of LED6 of LED4 simultaneously; The pin 5 of described chip U1 is connected with the base stage of triode V3 through resistance R 11, and the emitter of triode V3 is connected with the pin 4 of charactron LED1, the pin 4 of LED2, the pin 4 of LED3, pin 4, the pin 4 of LED5 and the pin 4 of LED6 of LED4 simultaneously; The pin 6 of described chip U1 is connected with the base stage of triode V4 through resistance R 12, and the emitter of triode V4 is connected with the pin 2 of charactron LED1, the pin 2 of LED2, the pin 2 of LED3, pin 1, the pin 1 of LED5 and the pin 1 of LED6 of LED4 simultaneously; The pin 10 of described chip U1 is connected with the base stage of triode V5 through resistance R 13, and the emitter of triode V5 is connected with the pin 1 of charactron LED1, the pin 1 of LED2, the pin 1 of LED3, pin 3, the pin 3 of LED5 and the pin 3 of LED6 of LED4 simultaneously; The pin 11 of described chip U1 is connected with the base stage of triode V6 through resistance R 14, and the emitter of triode V6 is connected with the pin 10 of charactron LED1, the pin 10 of LED2, the pin 10 of LED3, pin 8, the pin 8 of LED5 and the pin 8 of LED6 of LED4 simultaneously; The pin 12 of described chip U1 is connected with the base stage of triode V7 through resistance R 15, and the emitter of triode V7 is connected with the pin 5 of charactron LED1, the pin 5 of LED2, the pin 5 of LED3, pin 9, the pin 9 of LED5 and the pin 9 of LED6 of LED4 simultaneously; The pin 13 of described chip U1 is connected with the base stage of triode V8 through resistance R 16, and the emitter of triode V8 is connected with the pin 3 of LED1, the pin 3 of LED2, the pin 3 of LED3, pin 2, the pin 2 of LED5 and the pin 2 of LED6 of LED4 simultaneously; And the emitter of described triode V1, V2, V3, V4, V5, V6, V7, V8 is connected with the negative pole of a light emitting diode respectively.
7. according to the Kind of Multifunctional Power Meter described in claim 5 or 6, it is characterized in that:
The output terminal of described key assignments input circuit (6) is connected with the pin 16 of described intelligent chip SU1, and the pin 16 of described intelligent chip SU1 is the key assignments input end of described main control module (3).
8. Kind of Multifunctional Power Meter according to claim 7, is characterized in that:
Described intelligent chip SU1 is 71M6513 chip, described chip U1 is SN74HC164D chip, described chip U2 is SN74HC595D chip, described communication chip UU1 is 6LB184 chip, described photoelectric coupled device UU2 and UU3 are NEC2501 chip, and described photoelectric coupled device UA1, UA2, UA3, UA4 are NEC2501 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861027.0U CN203658498U (en) | 2013-12-24 | 2013-12-24 | A multifunctional electric power monitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320861027.0U CN203658498U (en) | 2013-12-24 | 2013-12-24 | A multifunctional electric power monitor |
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| CN203658498U true CN203658498U (en) | 2014-06-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122434A (en) * | 2014-08-20 | 2014-10-29 | 高玉琴 | Reactive current measurement circuit |
| CN104518482A (en) * | 2014-12-18 | 2015-04-15 | 平顶山中选自控系统有限公司 | Intelligent comprehensive protective device with multiple communication modes for low-voltage motors |
| CN105242145A (en) * | 2015-10-28 | 2016-01-13 | 河南开启电力实业有限公司 | Power quality monitoring and early-warning device |
| CN106124815A (en) * | 2016-08-19 | 2016-11-16 | 重庆华虹仪表有限公司 | Mechanical power energy meter voltage display circuit |
-
2013
- 2013-12-24 CN CN201320861027.0U patent/CN203658498U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122434A (en) * | 2014-08-20 | 2014-10-29 | 高玉琴 | Reactive current measurement circuit |
| CN104518482A (en) * | 2014-12-18 | 2015-04-15 | 平顶山中选自控系统有限公司 | Intelligent comprehensive protective device with multiple communication modes for low-voltage motors |
| CN105242145A (en) * | 2015-10-28 | 2016-01-13 | 河南开启电力实业有限公司 | Power quality monitoring and early-warning device |
| CN106124815A (en) * | 2016-08-19 | 2016-11-16 | 重庆华虹仪表有限公司 | Mechanical power energy meter voltage display circuit |
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