CN213275756U - Single-phase smart electric meter circuit of multi-way control - Google Patents
Single-phase smart electric meter circuit of multi-way control Download PDFInfo
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- CN213275756U CN213275756U CN202022247613.9U CN202022247613U CN213275756U CN 213275756 U CN213275756 U CN 213275756U CN 202022247613 U CN202022247613 U CN 202022247613U CN 213275756 U CN213275756 U CN 213275756U
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Abstract
The utility model provides a single-phase smart electric meter circuit of multi-path control which characterized in that: the power monitoring end of the CPU control module is connected with a power monitoring module for detecting the power failure of a peripheral power grid and storing data in time; the measurement detection end of the CPU control module is connected with a measurement module and used for sampling the current and the voltage of the electric load; the control end of the CPU control module is connected with at least two switch control modules, the output ends of the switch control modules are connected with the switching-on/off module, and the switch control modules send control instructions to control the on/off of the shunt relays of the corresponding electric energy meters.
Description
Technical Field
The utility model relates to an electric energy meter control technical field, concretely relates to single-phase smart electric meter circuit of multiple control.
Background
The remote control mode of the intelligent electric meter in the current market is a single control mode mainly including remote control switching-on and automatic arrearage switching-off, and all the intelligent electric meters are switched off when the intelligent electric meter is switched off in the remote control. At present, in collective apartments, such as college student apartments, indoor electric circuits are generally in a multi-path power supply mode of lighting, sockets and air conditioner sockets. The method is considered according to the aspects of managing characteristic requirements of collective apartments, saving energy, improving the use efficiency of energy and the like: in actual management, requirements of timing light-off, normal use of air conditioners in summer, stop use of air conditioners in spring in winter and the like are provided, and the original single-control intelligent electric meter cannot realize branch control management. The apartment manager needs to pull the switches one by one on site during the period of time light-off and air conditioner outage.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model discloses to prior art's not enough, provide an overall structure simple, control is accurate, can be according to the power consumption demand of difference, the single-phase smart electric meter circuit of multiple control of the break-make of the different power consumption shunts of selective control.
Second, the concrete technical scheme
A multi-path control single-phase intelligent ammeter circuit is provided with a CPU control module, wherein a power supply monitoring end of the CPU control module is connected with a power supply monitoring module and is used for detecting power failure of a peripheral power grid and storing data in time;
the measurement detection end of the CPU control module is connected with a measurement module and used for sampling the current and the voltage of the electric load;
the control end of the CPU control module is connected with at least two switch control modules, the output ends of the switch control modules are connected with the switching-on/off module, and the switch control modules send control instructions to control the on/off of the shunt switch blades of the corresponding electric energy meters;
the switch control module is provided with a triode Q1, a triode Q3, a triode Q4 and a triode Q5, the base electrode of the triode Q4 is connected with the control end of the CPU control module, the emitting electrode of the triode Q4 is grounded, the collecting electrode of the triode Q1 is connected with the collecting electrode of the triode Q1, the base electrode of the triode Q1 is connected with the second control end of the relay after passing through a resistor R13, and the emitting electrode of the triode Q1 is connected with a control power supply;
the base electrode of the triode Q5 is connected with the control end of the CPU control module, the emitting electrode of the triode Q5 is grounded, the collecting electrode of the triode Q5 is connected with the collecting electrode of the triode Q3, the emitting electrode of the triode Q3 is connected with a control power supply, and the base electrode of the triode Q3 is connected with the first control end of the relay after passing through the resistor R15.
As an optimization: and the communication end of the CPU control module is connected with a communication module.
As an optimization: and a capacitor C18 is connected between the output ends of the resistor R13 and the resistor R15 in a crossing way.
As an optimization: the CPU control module adopts a 78F0411 processor, and the metering module adopts an ADE7755 chip.
As an optimization: the switching-on and switching-off module is a magnetic latching relay.
The utility model has the advantages that: the CPU control module is adopted to send out instructions in a unified manner, the independent switch control module is used for controlling the corresponding relay, the multi-path control of the electric meter is realized, and the intelligent control management of different electric appliances and power consumption in the actual process is solved; the switch control module is composed of four triodes, and is high in response speed and accurate in control.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic circuit diagram of the CPU control module of the present invention;
fig. 3 is a schematic circuit diagram of the switch control module according to the present invention;
fig. 4 is an installation schematic diagram of the electric energy meter of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, 2 and 4: a multi-path control single-phase intelligent ammeter circuit is provided with a CPU control module, particularly a 78F0411 processor is adopted, and a power supply monitoring end of the CPU control module is connected with a power supply monitoring module for detecting power failure of a peripheral power grid and storing data in time;
the measurement detection end of the CPU control module is connected with a measurement module for sampling the current and the voltage of an electric load, wherein the measurement module adopts an ADE7755 chip, a voltage divider obtains a voltage sampling signal, a current divider obtains a current sampling signal, a multiplier ADE7755 obtains a voltage-current product signal, a frequency conversion is carried out to generate a counting pulse with the frequency being in direct proportion to the voltage-current product, and the electric energy measurement pulse is transmitted to the CPU 78F0411 for processing through a photoelectric coupler;
the control end of the CPU control module is connected with three switch control modules, the output end of each switch control module is connected with a switching-on/off module, a control instruction is sent out by the switch control module to control the switching-on/off of a shunt switch blade of the corresponding electric energy meter, and the switching-on/off module is a magnetic latching relay;
the communication end of the CPU control module is connected with a communication module, specifically a UARTO communication module, and the CPU control module is connected with the communication module and used for remotely transmitting data such as power consumption data, control instructions, power consumption parameters and the like to a background system.
As shown in fig. 3: the switch control module is provided with a triode Q1, a triode Q3, a triode Q4 and a triode Q5, the base electrode of the triode Q4 is connected with the control end of the CPU control module, the emitting electrode of the triode Q4 is grounded, the collecting electrode of the triode Q1 is connected with the collecting electrode of the triode Q1, the base electrode of the triode Q1 is connected with the second control end of the relay after passing through a resistor R13, and the emitting electrode of the triode Q1 is connected with a control power supply;
the base electrode of the triode Q5 is connected with the control end of the CPU control module, the emitter electrode of the triode Q5 is grounded, the collector electrode of the triode Q5 is connected with the collector electrode of the triode Q3, the emitter electrode of the triode Q3 is connected with a control power supply, the base electrode of the triode Q3 is connected with the first control end of the relay after passing through the resistor R15, and a capacitor C18 is connected between the output ends of the resistor R13 and the resistor R15 in a bridging mode. When the JDQON end outputs a high level, the triode Q4 is conducted, the triode Q3 is conducted, at the moment, the triode Q1 and the triode Q5 are cut off, the JDQB in the circuit has a high level, and the JDQA has a low level; the magnetic latching relay is turned on. When the JDQFF end outputs a high level, the triode Q5 is conducted, the triode Q1 is conducted, at the moment, the triode Q4 and the triode Q3 are cut off, the JDQA is at a high level, and the JDQB is at a low level; the magnetic latching relay is opened. When the JDQON end and the JDQOFF end are both at a low level, the four triodes are not conducted, and the relay does not act.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (5)
1. The utility model provides a single-phase smart electric meter circuit of multi-path control which characterized in that: the power monitoring end of the CPU control module is connected with a power monitoring module for detecting the power failure of a peripheral power grid and storing data in time;
the measurement detection end of the CPU control module is connected with a measurement module and used for sampling the current and the voltage of the electric load;
the control end of the CPU control module is connected with at least two switch control modules, the output ends of the switch control modules are connected with the switching-on/off module, and the switch control modules send control instructions to control the on/off of the shunt relays of the corresponding electric energy meters;
the switch control module is provided with a triode Q1, a triode Q3, a triode Q4 and a triode Q5, the base electrode of the triode Q4 is connected with the control end of the CPU control module, the emitting electrode of the triode Q4 is grounded, the collecting electrode of the triode Q1 is connected with the collecting electrode of the triode Q1, the base electrode of the triode Q1 is connected with the second control end of the relay after passing through a resistor R13, and the emitting electrode of the triode Q1 is connected with a control power supply;
the base electrode of the triode Q5 is connected with the control end of the CPU control module, the emitting electrode of the triode Q5 is grounded, the collecting electrode of the triode Q5 is connected with the collecting electrode of the triode Q3, the emitting electrode of the triode Q3 is connected with a control power supply, and the base electrode of the triode Q3 is connected with the first control end of the relay after passing through the resistor R15.
2. The multi-way control single-phase smart meter circuit of claim 1, wherein: and the communication end of the CPU control module is connected with a communication module.
3. The multi-way control single-phase smart meter circuit of claim 1, wherein: and a capacitor C18 is connected between the output ends of the resistor R13 and the resistor R15 in a crossing way.
4. The multi-way control single-phase smart meter circuit of claim 1, wherein: the CPU control module adopts a 78F0411 processor, and the metering module adopts an ADE7755 chip.
5. The multi-way control single-phase smart meter circuit of claim 1, wherein: the switching-on and switching-off module is a magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022247613.9U CN213275756U (en) | 2020-10-10 | 2020-10-10 | Single-phase smart electric meter circuit of multi-way control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022247613.9U CN213275756U (en) | 2020-10-10 | 2020-10-10 | Single-phase smart electric meter circuit of multi-way control |
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| Publication Number | Publication Date |
|---|---|
| CN213275756U true CN213275756U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022247613.9U Active CN213275756U (en) | 2020-10-10 | 2020-10-10 | Single-phase smart electric meter circuit of multi-way control |
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| CN (1) | CN213275756U (en) |
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- 2020-10-10 CN CN202022247613.9U patent/CN213275756U/en active Active
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