CN210324560U - Broadband carrier power failure reporting communication system for low-voltage electric energy meter - Google Patents
Broadband carrier power failure reporting communication system for low-voltage electric energy meter Download PDFInfo
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- CN210324560U CN210324560U CN201921750390.9U CN201921750390U CN210324560U CN 210324560 U CN210324560 U CN 210324560U CN 201921750390 U CN201921750390 U CN 201921750390U CN 210324560 U CN210324560 U CN 210324560U
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Abstract
The utility model discloses a communication system is reported in power failure to low pressure electric energy meter broadband carrier, including carrier signal receiving circuit, carrier signal output circuit, little the control unit and electric energy meter, the electric energy meter includes CPU, the carrier signal on the carrier signal receiving circuit received the power line, carrier signal receiving circuit's output and little the control unit's first input are connected, and little the control unit's first output is connected with CPU's input, and CPU's output and little the control unit's second input are connected, and little the control unit's second output is connected with carrier signal output circuit's input, and carrier signal output circuit's output is with carrier signal output to the power line on. The utility model discloses an increase carrier signal receiving module and carrier signal output module, realize that the electric energy meter stops the real-time supervision and the report of power-on event, make clear and definite the meter and the power failure scope of having a power failure.
Description
Technical Field
The utility model relates to an electric power communication field, more specifically relates to a low pressure electric energy meter broadband carrier has a power failure and reports communication system.
Background
For a long time, power supply companies mainly rely on a power supply service command platform to perform low-voltage □ network fault processing, including organization scheduling and work order distribution of power outage first-aid repair. However, the analysis of the power failure position, the power failure scale, the number of required personnel and the emergency repair plan is mainly based on the telephone call made by the user after the power failure, so that the misjudgment of workload or recovery time is easily caused by the subsequent field processing, the derived processing efficiency is low, the cost is high, the potential safety hazard is more, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low pressure electric energy meter broadband carrier has a power failure and reports communication system realizes that low pressure platform district electric energy meter stops the real-time supervision and the report of power-on event.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the utility model provides a communication system is reported in power failure to low-voltage electric energy meter broadband carrier, includes carrier signal receiving circuit, carrier signal output circuit, little the control unit and electric energy meter, the electric energy meter includes CPU, carrier signal receiving circuit receives the carrier signal on the power line, carrier signal receiving circuit's output is connected with little the control unit's first input, and little the control unit's first output is connected with CPU's input, and CPU's output is connected with little the control unit's second input, and little the control unit's second output is connected with carrier signal output circuit's input, and carrier signal output circuit's output is on with the power line carrier signal output.
Since the broadband power line carrier communication method uses the power line as a communication channel for data transmission, when the air switch is turned off, the carrier communication is greatly affected. When the electricity meter generates an event, after being detected by the micro control unit, a destination node (carrier slave node) generating the event can actively report data on a route, and the event mark in the information domain informs the concentrator that the electricity meter has the event. When the electric meter has power failure, the communication system detects the power failure, judges that the power failure event is reported after the power failure of the electric meter, and reports the power failure event to the concentrator module through the power line carrier signal communication channel.
Preferably, the carrier signal receiving circuit receives the carrier signal on the power line, and the output end of the carrier signal output circuit outputs the carrier signal to the power line, and the carrier signal is coupled with the power line through the transformer.
Preferably, the carrier signal receiving circuit includes a band-pass filter and an MC3361BPL demodulator, the band-pass filter filters the carrier signal coupled by the transformer, and the filtered carrier signal is input to the MC3361BPL demodulator for filtering and frequency discrimination and then input to the micro control unit.
Preferably, the electric energy meter further comprises a power supply, and the power supply provides 12V power.
Preferably, the carrier signal output circuit includes a filter and an operational amplifier, wherein an input end of the filter is connected to the second output end of the micro control unit, an output end of the filter is connected to an input end of the operational amplifier, and an output end of the operational amplifier is connected to a power supply of the electric energy meter and is in signal coupling with the power line through a transformer.
Preferably, the power supply further comprises a voltage reduction circuit, wherein the input end of the voltage reduction circuit is connected with a power supply of the electric energy meter, and the output end of the voltage reduction circuit is connected with the micro control unit.
Preferably, the voltage reduction circuit comprises a TC7150 chip, a capacitor C34, a capacitor C18, a capacitor C37, a capacitor C35, a capacitor C36, an electrolytic capacitor E1 and a resistor R17, wherein:
the Vin end of the TC7150 chip is respectively connected with a power supply of the electric energy meter, one end of a capacitor C34 and one end of a capacitor C18, the Vout end of the TC7150 chip is connected with one end of a resistor R17, the other end of the resistor R17 is respectively electrically connected with one end of a capacitor C37, one end of a capacitor C35, one end of a capacitor C36 and the positive electrode of an electrolytic capacitor E1, and the other end of the resistor R17 is used as the output end of a voltage reduction circuit and is connected with the micro control unit;
the other end of the capacitor C34, the other end of the capacitor C18, the GND end of the TC7150 chip, the other end of the capacitor C37, the other end of the capacitor C35, the other end of the capacitor C36 and the negative electrode of the electrolytic capacitor E1 are all grounded.
Preferably, the electric energy meter and the micro control unit are connected through a 2 × 6 double-row pin as a connecting piece.
Preferably, the power meter further comprises a super capacitor power supply circuit, wherein the super capacitor power supply circuit comprises 4 2F super capacitors connected in series, and supplies power to the carrier signal receiving circuit, the carrier signal output circuit and the micro control unit after the power supply of the power meter is powered off, so that the power meter can supply power through the super capacitors to maintain a working state, detect whether self strong current is in a power failure state or not and inquire whether the voltage of the power meter is normal or not when the power supply is suddenly interrupted, judge that the power meter is in the power failure state if the power meter does not respond, and generate a power failure event for reporting.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses an increase carrier signal receiving module and carrier signal output module, realize that the electric energy meter stops the real-time supervision and the report of power-on event, make clear and definite the meter and the power failure scope of having a power failure. When having a power failure, the utility model discloses can be through the super capacitor power supply, report the power failure incident to the concentrator, then report to measurement automatic system by the concentrator. And when the electric meter is electrified again, synchronously detecting the electrification event and reporting the electrification event to the metering automation system. And acquiring the specific power failure meter and range in time, and dispatching operation and maintenance personnel for checking.
Drawings
Fig. 1 is a schematic structural diagram of a broadband carrier power failure reporting communication system of an electric energy meter.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
The embodiment provides a communication system for reporting power failure of broadband carrier waves of an electric energy meter, as shown in fig. 1, the communication system comprises a carrier signal receiving circuit, a carrier signal output circuit, a micro control unit and the electric energy meter, wherein the electric energy meter comprises a CPU, the carrier signal receiving circuit receives carrier signals on a power line, an output end of the carrier signal receiving circuit is connected with a first input end of the micro control unit, a first output end of the micro control unit is connected with an input end of the CPU, an output end of the CPU is connected with a second input end of the micro control unit, a second output end of the micro control unit is connected with an input end of the carrier signal output circuit, and an output end of the carrier signal output circuit outputs the carrier signals to the.
The carrier signal receiving circuit receives a carrier signal on the power line, and the output end of the carrier signal output circuit outputs the carrier signal to the power line and performs signal coupling through the transformer.
The carrier signal receiving circuit comprises a band-pass filter and an MC3361BPL demodulator, wherein the band-pass filter filters the carrier signal coupled by the transformer, and the filtered carrier signal is input into the MC3361BPL demodulator for filtering and frequency discrimination and then input into the micro control unit.
The electric energy meter also comprises a power supply, and the power supply provides 12V power.
The carrier signal output circuit comprises a filter and an operational amplifier, wherein the input end of the filter is connected with the second output end of the micro control unit, the output end of the filter is connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with a power supply of the electric energy meter and is in signal coupling with a power line through a transformer.
The input end of the voltage reduction circuit is connected with a power supply of the electric energy meter, and the output end of the voltage reduction circuit is connected with the micro control unit.
The voltage reduction circuit comprises a TC7150 chip, a capacitor C34, a capacitor C18, a capacitor C37, a capacitor C35, a capacitor C36, an electrolytic capacitor E1 and a resistor R17, wherein:
the Vin end of the TC7150 chip is respectively connected with a power supply of the electric energy meter, one end of a capacitor C34 and one end of a capacitor C18, the Vout end of the TC7150 chip is connected with one end of a resistor R17, the other end of the resistor R17 is respectively electrically connected with one end of a capacitor C37, one end of a capacitor C35, one end of a capacitor C36 and the positive electrode of an electrolytic capacitor E1, and the other end of the resistor R17 is used as the output end of a voltage reduction circuit and is connected with the micro control unit;
the other end of the capacitor C34, the other end of the capacitor C18, the GND end of the TC7150 chip, the other end of the capacitor C37, the other end of the capacitor C35, the other end of the capacitor C36 and the negative electrode of the electrolytic capacitor E1 are all grounded.
The electric energy meter is connected with the micro control unit through 2 multiplied by 6 double rows of contact pins as a connecting piece.
The power supply of the electric energy meter is powered off, and then the carrier signal receiving circuit, the carrier signal output circuit and the micro control unit are powered on.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a communication system is reported in power failure of low-voltage electric energy meter broadband carrier, its characterized in that includes carrier signal receiving circuit, carrier signal output circuit, little the control unit and electric energy meter, the electric energy meter includes CPU, carrier signal receiving circuit receives the carrier signal on the power line, carrier signal receiving circuit's output and little the control unit's first input are connected, and little the control unit's first output is connected with CPU's input, and CPU's output and little the control unit's second input are connected, and little the control unit's second output is connected with carrier signal output circuit's input, and carrier signal output circuit's output is with carrier signal output to the power line on.
2. The system according to claim 1, wherein the carrier signal receiving circuit receives the carrier signal on the power line and the output of the carrier signal output circuit outputs the carrier signal to the power line, both of which are signal-coupled via a transformer.
3. The system according to claim 2, wherein the carrier signal receiving circuit comprises a band-pass filter and an MC3361BPL demodulator, the band-pass filter filters the carrier signal coupled by the transformer, and the filtered carrier signal is input to the MC3361BPL demodulator for filtering and frequency discrimination and then input to the micro control unit.
4. The system of claim 3, wherein the power meter further comprises a power supply, and the power supply provides 12V power.
5. The system according to claim 4, wherein the carrier signal output circuit comprises a filter and an operational amplifier, wherein an input terminal of the filter is connected to the second output terminal of the micro control unit, an output terminal of the filter is connected to an input terminal of the operational amplifier, and an output terminal of the operational amplifier is connected to a power supply of the low voltage electric energy meter and is signal-coupled to the power line through a transformer.
6. The broadband carrier power failure reporting communication system of the low-voltage electric energy meter according to claim 4, further comprising a voltage reduction circuit, wherein an input end of the voltage reduction circuit is connected with a power supply of the electric energy meter, and an output end of the voltage reduction circuit is connected with the micro control unit.
7. The broadband carrier power failure reporting communication system of the low-voltage electric energy meter according to claim 6, wherein the voltage reduction circuit comprises a TC7150 chip, a capacitor C34, a capacitor C18, a capacitor C37, a capacitor C35, a capacitor C36, an electrolytic capacitor E1 and a resistor R17, wherein:
the Vin end of the TC7150 chip is respectively connected with a power supply of the electric energy meter, one end of a capacitor C34 and one end of a capacitor C18, the Vout end of the TC7150 chip is connected with one end of a resistor R17, the other end of the resistor R17 is respectively electrically connected with one end of a capacitor C37, one end of a capacitor C35, one end of a capacitor C36 and the positive electrode of an electrolytic capacitor E1, and the other end of the resistor R17 is connected with the micro-control unit as the output end of the voltage reduction circuit;
the other end of the capacitor C34, the other end of the capacitor C18, the GND end of the TC7150 chip, the other end of the capacitor C37, the other end of the capacitor C35, the other end of the capacitor C36 and the negative electrode of the electrolytic capacitor E1 are all grounded.
8. The broadband carrier power failure reporting communication system of the low-voltage electric energy meter according to any one of claims 1 to 7, wherein the electric energy meter is connected with the micro control unit through 2 x 6 double rows of pins as a connecting piece.
9. The system according to claim 8, further comprising a super capacitor backup circuit, wherein the super capacitor backup circuit comprises 4 2F super capacitors connected in series, and supplies power to the carrier signal receiving circuit, the carrier signal output circuit, and the micro control unit after the power failure of the electric energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921750390.9U CN210324560U (en) | 2019-10-17 | 2019-10-17 | Broadband carrier power failure reporting communication system for low-voltage electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921750390.9U CN210324560U (en) | 2019-10-17 | 2019-10-17 | Broadband carrier power failure reporting communication system for low-voltage electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN210324560U true CN210324560U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921750390.9U Active CN210324560U (en) | 2019-10-17 | 2019-10-17 | Broadband carrier power failure reporting communication system for low-voltage electric energy meter |
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| Country | Link |
|---|---|
| CN (1) | CN210324560U (en) |
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- 2019-10-17 CN CN201921750390.9U patent/CN210324560U/en active Active
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