CN204462290U - A kind of power monitoring device - Google Patents
A kind of power monitoring device Download PDFInfo
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- CN204462290U CN204462290U CN201520184617.3U CN201520184617U CN204462290U CN 204462290 U CN204462290 U CN 204462290U CN 201520184617 U CN201520184617 U CN 201520184617U CN 204462290 U CN204462290 U CN 204462290U
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Abstract
The utility model discloses a kind of power monitoring device, the power module comprising single-chip microcomputer, the signal sampling module be connected with described single-chip microcomputer respectively, relay control module, memory module, carrier communication module and also comprise for powering, described signal sampling module one end is connected with line of electric force, one end is connected with the signal input part of single-chip microcomputer in addition, and the control signal output terminal of described single-chip microcomputer is by relay control module connecting circuit power interface.Power monitoring device of the present utility model, by adopting the mode of carrier communication, stable signal transmission, and without the need to carrying out complicated wiring, solve the problem that current commercial power watch-dog adopts bus communication wiring inconvenient, equipment volume is little, is convenient to family and installs and use.
Description
Technical field
The utility model relates to a kind of power monitoring device.
Background technology
Existing power monitoring equipment normally technical grade product, cannot be applicable to family's routine use, and the electrical quantity type of metering is single, cannot carry out statistics and gather.
And current industrial power monitoring equipment volume is huge, and inconvenient family installs and uses, and check inconvenient directly perceived.
Utility model content
Be not suitable for the technical matters of family's use to solve current industrial power monitoring equipment, propose a kind of power monitoring device, volume is little, is easy to check, is particularly useful for family and uses.The house keeper of high-power electric appliance, has timed on-off of power function, and the monitoring carry out the voltage of load, electric current, active power and management, help user's rational utilization of electricity.User according to the charge period of step price peak interval of time setting electric motor car, can start charging when morning switches on power when electricity price reduces.
A kind of power monitoring device, the power module comprising single-chip microcomputer, the signal sampling module be connected with described single-chip microcomputer respectively, relay control module, memory module, carrier communication module and also comprise for powering, described signal sampling module one end is connected with line of electric force, one end is connected with the signal input part of single-chip microcomputer in addition, and the control signal output terminal of described single-chip microcomputer is by relay control module connecting circuit power interface.
Further, described signal sampling module comprises voltage sampling circuit and current sampling circuit, is respectively used to the voltage sample in line of electric force with to the current sample in line of electric force.
Further, described relay control module is high-power compact magnetic latching relay.
Further, described power module comprises the AC-DC conversion chip for alternating current being converted to 12V DC voltage, and the 12V DC voltage for being exported by described AC-DC conversion chip is converted to a DC-DC chip of 3.3V DC voltage, is used for the 12V DC voltage that described AC-DC conversion chip exports to be converted to the 2nd DC-DC chip of 5V DC voltage.
Further, the carrier wave receiving circuit that described carrier communication module at least comprises carrier chip, is connected with the signal input part of described carrier chip, the carrier wave transtation mission circuit be connected with the signal output part of described carrier chip, described carrier wave receiving circuit comprises the Signal reception filtering circuit be connected with signal coupling circuit, described signal coupling circuit one end connects line of electric force, be coupled by the carrier control signal carried in line of electric force and export described Signal reception filtering circuit to and carry out filtering, filtered carrier control signal is sent to described carrier chip process.
Further, described signal coupling circuit comprises the first electric capacity be connected on a wherein line of electric force and the signal coupling transformer being connected to described first electric capacity rear end.
Further, the output terminal of described signal coupling transformer is also connected with two-way TVS pipe.
Further, described Signal reception filtering circuit comprises Butterworth bandpass filter.
Further, described Signal reception filtering circuit also comprises the 4th diode and the 5th diode, and the output terminal being connected in parallel on described Butterworth bandpass filter is inverted by described 4th diode and the 5th diode.
Further, described carrier wave transtation mission circuit comprises the signal output amplifier be connected with described signal coupling circuit, after described carrier chip receives the signal of described single-chip microcomputer transmission, signal is sent to signal output amplifier and carries out signal amplification, amplifying signal is sent in line of electric force through described signal coupling circuit.
Power monitoring device of the present utility model, by adopting the mode of carrier communication, stable signal transmission, and without the need to carrying out complicated wiring, solve the problem that current industrial power monitoring device adopts bus communication wiring inconvenient, equipment volume is little, is convenient to family and installs and use.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and is not thought restriction of the present utility model.In the accompanying drawings:
Fig. 1 is a kind of embodiment functional-block diagram of power monitoring device that the utility model proposes;
Fig. 2 is power circuit principle figure in a kind of embodiment of dull and stereotyped gateway adapter that the utility model proposes;
Fig. 3 is carrier communication module functional-block diagram in a kind of embodiment of the dull and stereotyped gateway adapter that the utility model proposes;
Fig. 4 is the carrier wave receiving circuit schematic diagram in a kind of embodiment of the dull and stereotyped gateway adapter that the utility model proposes;
Fig. 5 is signal output amplifier functional-block diagram in a kind of embodiment of the dull and stereotyped gateway adapter that the utility model proposes.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment, the utility model will be further described.
Embodiment one, the present embodiment proposes a kind of power monitoring device, as shown in Figure 1, the power module comprising single-chip microcomputer, the signal sampling module be connected with described single-chip microcomputer respectively, relay control module, memory module, carrier communication module and also comprise for powering, described signal sampling module one end is connected with line of electric force, one end is connected with the signal input part of single-chip microcomputer in addition, and the control signal output terminal of described single-chip microcomputer is by relay control module connecting circuit power interface.This power monitoring device is by adopting the mode of carrier communication, stable signal transmission, and without the need to carrying out complicated wiring, solve the problem that current industrial power monitoring device adopts bus communication wiring inconvenient, equipment volume is little, is convenient to family and installs and use.
Specifically in the present embodiment, described signal sampling module comprises voltage sampling circuit and current sampling circuit, is respectively used to the voltage sample in line of electric force with to the current sample in line of electric force.Signal sampling module all adopts isolation sampling method, forceful electric power signal on electric wire is converted to the weak electric signal of same frequency, by the filter action of sample circuit, signal is sent into single-chip microcomputer, finally obtain signal by a series of amplification filtering, calculate corresponding voltage, current value.
Described relay control module preferably adopts high-power compact magnetic latching relay, and this relay can binary channels control, and can realize the control system of switching on or off electricity to electrical appliance by simple level translation.
Preferably in the present embodiment, as shown in Figure 2, described power module comprises the AC-DC conversion chip VC1 for alternating current being converted to 12V DC voltage, and the 12V DC voltage for being exported by described AC-DC conversion chip is converted to a DC-DC chip TS1 of 3.3V DC voltage, is used for the 12V DC voltage that described AC-DC conversion chip exports to be converted to the 2nd DC-DC chip of 5V DC voltage.
As a preferred embodiment, as shown in Figure 3, in the present embodiment, carrier communication module at least comprises carrier chip, the carrier wave receiving circuit be connected with the signal input part of described carrier chip, the carrier wave transtation mission circuit that is connected with the signal output part of described carrier chip.Wherein, carrier wave receiving circuit for receiving the carrier signal from line of electric force, and is sent to single-chip microcomputer after carrying out conversion process, and carrier wave transtation mission circuit is used for single-chip microcomputer being sent signal transacting, being loaded in line of electric force.
As a preferred embodiment, as shown in Figure 3, in the present embodiment, carrier wave receiving circuit comprises signal output amplifier and signal coupling circuit, carrier wave receiving circuit comprises signal coupling circuit and Signal reception filtering circuit, wherein, carrier wave transtation mission circuit and carrier wave receiving circuit share signal coupling circuit.
As a preferred embodiment, carrier chip circuit is the main control chip of carrier communication module, be a kind of power line carrier communication chip designed using power line medium as communication channel specially, AFE (analog front end), baseband modulation and demodulation, digital signal processing, CPU core and abundant function peripheral hardware perfection are integrated in one by it.Chip periphery circuit is the basis that carrier chip can normally work, and is also the guarantee of carrier chip steady operation.
As a preferred embodiment, as shown in Figure 4, described signal coupling circuit comprises the first electric capacity C1 be connected on a wherein line of electric force and the signal coupling transformer T1 being connected to described first electric capacity C1 rear end, the carrier control signal carried in line of electric force is coupled in circuit through signal coupling transformer T1, wherein, signal coupling transformer T1 and the first electric capacity C1 forms high-pass filtering circuit, for the industrial frequency AC electric signal of isolated high voltage.
As a preferred embodiment, as shown in Figure 4, the output terminal of described signal coupling transformer is also connected with two-way TVS pipe, for eliminating from the high frequency high intensity interference on line of electric force, thus protection internal circuit.
As a preferred embodiment, disturb outward from the band on line of electric force to eliminate, described Signal reception filtering circuit comprises Butterworth bandpass filter, as shown in Figure 4, adopt the two rank Butterworth bandpass filter be jointly made up of R17, L1, C8, C9, C10, C11, L2 and R7 in the present embodiment, effectively can eliminate and disturb outward from the band on line of electric force.
Wherein, described signal coupling transformer can adopt 1:1 coupling magnet ring to realize.
Carrier chip is damaged in order to prevent Signal reception filtering circuit to be input to the overtension of carrier chip, described Signal reception filtering circuit also comprises the 4th diode VD4 and the 5th diode VD5, described 4th diode VD4 and the 5th diode VD5 is inverted the output terminal being connected in parallel on described Butterworth bandpass filter, utilize the forward conduction voltage characteristic of diode, by the voltage that this two diode places of voltage clamping that Butterworth bandpass filter exports go out, prevent being input to the overtension of carrier chip and damage carrier chip.
Described Signal reception filtering circuit also comprises coupling capacitance C17, and described coupling capacitance C17 is connected between the signal input part of described carrier chip and described Signal reception filtering circuit, plays a part every straight-through friendship.
As a preferred embodiment, as shown in Figure 5, carrier wave transtation mission circuit in the present embodiment comprises signal output amplifier and signal coupling circuit, described signal output amplifier is connected with signal coupling circuit, signal is sent to signal output amplifier and carries out signal amplification by described carrier chip signal output part, and amplifying signal is sent in line of electric force through described signal coupling circuit.Wherein, signal output amplifier can adopt power amplifier as shown in Figure 5 to realize.Such as, in the present embodiment, what signal output amplifier adopted is Qingdao Neusoft carrier-specific power line carrier link driving amplifier (model is ESPA16).The function of this circuit realiration is amplified carrier chip output signal, and be coupled on line of electric force by signal coupling circuit, meets the requirement of power line transmission.
Although current utility model is described with reference to specific example, it just in order to the object explained instead of to restriction of the present utility model, to the change of embodiment, increases and/or deletes and can not departed from scope of the present utility model by making.
Claims (10)
1. a power monitoring device, it is characterized in that: the power module comprising single-chip microcomputer, the signal sampling module be connected with described single-chip microcomputer respectively, relay control module, memory module, carrier communication module and also comprise for powering, described signal sampling module one end is connected with line of electric force, one end is connected with the signal input part of single-chip microcomputer in addition, and the control signal output terminal of described single-chip microcomputer is by relay control module connecting circuit power interface.
2. power monitoring device according to claim 1, is characterized in that: described signal sampling module comprises voltage sampling circuit and current sampling circuit, is respectively used to the voltage sample in line of electric force with to the current sample in line of electric force.
3. power monitoring device according to claim 1 and 2, is characterized in that: described relay control module is high-power compact magnetic latching relay.
4. power monitoring device according to claim 1 and 2, it is characterized in that: described power module comprises the AC-DC conversion chip for alternating current being converted to 12V DC voltage, and the 12V DC voltage for being exported by described AC-DC conversion chip is converted to a DC-DC chip of 3.3V DC voltage, is used for the 12V DC voltage that described AC-DC conversion chip exports to be converted to the 2nd DC-DC chip of 5V DC voltage.
5. power monitoring device according to claim 1 and 2, it is characterized in that: described carrier communication module at least comprises carrier chip, the carrier wave receiving circuit be connected with the signal input part of described carrier chip, the carrier wave transtation mission circuit be connected with the signal output part of described carrier chip, described carrier wave receiving circuit comprises the Signal reception filtering circuit be connected with signal coupling circuit, described signal coupling circuit one end connects line of electric force, the carrier control signal carried in line of electric force is coupled and exports described Signal reception filtering circuit to and carry out filtering, filtered carrier control signal is sent to described carrier chip process.
6. power monitoring device according to claim 5, is characterized in that: described signal coupling circuit comprises the first electric capacity be connected on a wherein line of electric force and the signal coupling transformer being connected to described first electric capacity rear end.
7. power monitoring device according to claim 6, is characterized in that: the output terminal of described signal coupling transformer is also connected with two-way TVS pipe.
8. power monitoring device according to claim 7, is characterized in that: described Signal reception filtering circuit comprises Butterworth bandpass filter.
9. power monitoring device according to claim 8, it is characterized in that: described Signal reception filtering circuit also comprises the 4th diode and the 5th diode, the output terminal being connected in parallel on described Butterworth bandpass filter is inverted by described 4th diode and the 5th diode.
10. power monitoring device according to claim 9, it is characterized in that: described carrier wave transtation mission circuit comprises the signal output amplifier be connected with described signal coupling circuit, after described carrier chip receives the signal of described single-chip microcomputer transmission, signal is sent to signal output amplifier and carries out signal amplification, amplifying signal is sent in line of electric force through described signal coupling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184617.3U CN204462290U (en) | 2015-03-30 | 2015-03-30 | A kind of power monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520184617.3U CN204462290U (en) | 2015-03-30 | 2015-03-30 | A kind of power monitoring device |
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| CN204462290U true CN204462290U (en) | 2015-07-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730390A (en) * | 2015-03-30 | 2015-06-24 | 青岛东软载波智能电子有限公司 | Monitor for electricity utilization |
| CN105763227A (en) * | 2016-04-15 | 2016-07-13 | 贵州大学 | Transmitting/receiving filter and coupling circuit of electric power carrier device for measurement and control system |
| CN112187795A (en) * | 2020-09-28 | 2021-01-05 | 青岛鼎信通讯股份有限公司 | High-speed medium-voltage carrier encryption transparent transmission device |
-
2015
- 2015-03-30 CN CN201520184617.3U patent/CN204462290U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730390A (en) * | 2015-03-30 | 2015-06-24 | 青岛东软载波智能电子有限公司 | Monitor for electricity utilization |
| CN105763227A (en) * | 2016-04-15 | 2016-07-13 | 贵州大学 | Transmitting/receiving filter and coupling circuit of electric power carrier device for measurement and control system |
| CN112187795A (en) * | 2020-09-28 | 2021-01-05 | 青岛鼎信通讯股份有限公司 | High-speed medium-voltage carrier encryption transparent transmission device |
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