CN211377693U - Power transmission line hybrid power supply based on solar energy and induction energy obtaining - Google Patents
Power transmission line hybrid power supply based on solar energy and induction energy obtaining Download PDFInfo
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- CN211377693U CN211377693U CN201922212516.3U CN201922212516U CN211377693U CN 211377693 U CN211377693 U CN 211377693U CN 201922212516 U CN201922212516 U CN 201922212516U CN 211377693 U CN211377693 U CN 211377693U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 45
- 230000006698 induction Effects 0.000 title claims abstract description 24
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model relates to a high voltage technical field, concretely relates to transmission line hybrid power supply based on solar energy and response are got can, include: the power supply comprises a power supply module, an induction energy-taking module, a solar battery, a charging module, a lithium battery pack, a boosting module, a power supply switching module and a power supply state monitoring module, wherein the input end of the power supply switching module is connected with the output end of the induction energy-taking module and the output end of the solar battery; the input end of the lithium battery pack is connected with the output end of the charging module, and the output end of the lithium battery pack is connected with the input end of a boosting module; the output end of the boosting module is connected with a first input end of a power supply switching module and a first input end of the power supply state monitoring module, and a second input end of the power supply switching module and a second input end of the power supply state monitoring module are connected with a second output end of the power supply conversion module; the utility model discloses can provide sufficient power under transmission line undercurrent.
Description
Technical Field
The utility model relates to a high voltage technical field especially relates to a transmission line hybrid power supply based on solar energy and response are got ability.
Background
The power supply modes of the existing power transmission line on-line monitoring system comprise solar energy, a storage battery, laser energy supply, voltage-dividing capacitor power taking, induction energy taking and the like, but the power supply modes respectively have advantages and disadvantages. The induction energy acquisition has the most development prospect due to the unique points on the energy acquisition mode and the design concept. At present, the conventional method is to install an energy-taking coil on a power transmission line, induce an alternating-current voltage, output a direct-current power supply after rectification, filtering and voltage stabilization, and supply power to terminal equipment. Meanwhile, the power supply is generally provided with a rechargeable lithium battery, the induction power supply charges the lithium battery while supplying power to the terminal equipment, and when the line has power failure or the current is small, the lithium battery is converted into the terminal equipment through voltage to supply power, so that the continuous normal operation of the on-line monitoring system of the power transmission line is ensured.
At present, because some power transmission lines are in a low-current running state for a long time, a power supply obtained by induction energy acquisition cannot meet the requirement of a later stage, and no redundant energy is used for charging a lithium battery, so that the stable and reliable running of an on-line monitoring system of the power transmission lines is seriously restricted.
Disclosure of Invention
In order to solve and go up technical problem, the utility model provides a transmission line hybrid power supply based on solar energy and response are got can.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides a transmission line hybrid power supply based on solar energy and response are got can which characterized in that includes:
the input end of the power conversion module is connected with the output end of an induction energy taking module and the output end of a solar cell, and the induction energy taking module is arranged on the power transmission line and used for inducing alternating voltage;
the input end of the charging module is connected with the first output end of the power supply conversion module;
the input end of the lithium battery pack is connected with the output end of the charging module, and the output end of the lithium battery pack is connected with the input end of a boosting module;
the output end of the boosting module is connected with a first input end of a power supply switching module and a first input end of a power supply state monitoring module, and a second input end of the power supply switching module and a second input end of the power supply state monitoring module are connected with a second output end of the power supply conversion module.
Preferably, the power supply switching module includes a power supply chip, and the power supply chip includes a first voltage input pin, a second voltage input pin, a first boost enable pin, a first ground pin, a second boost enable pin, a charging state indication pin, a first voltage output pin, and a second voltage output pin; the first voltage input pin is connected with the power conversion module, the second voltage input pin is connected with the boosting module, and the first boosting enabling pin, the first grounding pin and the second boosting enabling pin are grounded; a first resistor is connected between the charging state indication pin and the first voltage output pin; and the capacitor is connected between the second voltage output pin and the grounding end and is connected with the voltage output end.
Preferably, when the voltage value of the boosting module is smaller than the voltage value of the power conversion module, the second voltage input pin is turned off, and the first and second voltage input pins are turned on; when the voltage value of the power conversion module is smaller than the voltage value of the boosting module, the second voltage input pin is conducted, and the first and second voltage input pins are closed.
Preferably, the charging module includes:
the power chip comprises a first power input pin, a signal input pin, a variable pin, a battery connection pin, a first pulse pin and a second pulse pin; the first power input pin is connected with a voltage input end, the signal input pin is connected with a signal input end, the power supply is connected with the battery connection pin and the grounding end, the first pulse pin is connected with one end of a second resistor, and the second pulse pin is connected with one end of a third resistor;
the base electrode of the first triode is connected with the other end of the second resistor, the collector electrode of the first triode is connected with one end of a fifth resistor, and the emitting electrode of the first triode is grounded;
the base electrode of the second triode is connected with the other end of the third resistor, the collector electrode of the second triode is connected with one end of a fourth resistor, and the emitting electrode of the second triode is grounded;
and one end of the sixth resistor is connected between the fifth resistor and the grounding end.
Preferably, the charging module has a multi-stage charging current control function, and the charging current of the lithium battery pack is automatically adjusted according to the current voltage of the induction energy-taking module and the solar battery.
Preferably, the power supply state monitoring module includes:
the power supply state monitoring chip comprises a second power supply input pin, a working voltage pin, a threshold voltage pin, a second grounding pin, a battery voltage detection output pin and a low-level effective battery voltage detection output pin; the second power input pin is connected with the voltage input end, the working voltage pin is connected between a seventh resistor and an eighth resistor, one end of the seventh resistor is connected with the voltage input end, the threshold voltage pin is connected between the eighth resistor and a ninth resistor, the ninth resistor is connected with the second grounding pin in a grounding mode, the battery voltage detection output pin is connected with the variable pin, and the low-level effective battery voltage detection output pin is connected with the power switch.
Preferably, the power supply state monitoring module is provided with an uplink threshold and a downlink threshold, and the seventh resistor, the eighth resistor and the ninth resistor control the uplink threshold and the downlink threshold.
Preferably, when the voltage value of the voltage input end is smaller than the downlink threshold value, the power supply of the terminal is turned off, and the lithium battery pack enters a full-speed charging state; and when the voltage value of the voltage input end is greater than the uplink threshold value, the terminal supplies power and is turned on, and the charging module performs dynamic self-adjustment to continuously charge the lithium battery pack.
Preferably, when the current of the power transmission line is lower than a preset value or the illumination is insufficient, the boosting module and the power conversion module are mixed and balanced to provide power for the power supply state monitoring module; when the power transmission line is powered off and is not illuminated, the power supply switching module controls a power supply to be switched to the lithium battery pack, and the lithium battery pack continuously provides the power supply for the power supply state monitoring module through the boosting module; when the current of the power transmission line is recovered to be within a preset range or the illumination is sufficient, the power supply switching module enables the power supply to be switched to the power supply conversion module to supply power to the terminal, and meanwhile, the charging module charges the lithium battery pack through dynamic self-adjustment.
Preferably, the voltage boosting module and the power conversion module are both provided with a voltage converter for converting high voltage/low voltage direct current into low voltage/high voltage direct current.
The beneficial effects are that:
the utility model discloses can provide sufficient power under transmission line undercurrent, provide reliable and stable operation for electric wire way on-line monitoring system.
Drawings
Fig. 1 is a structural block diagram of a hybrid power supply for a power transmission line based on solar energy and inductive energy acquisition;
fig. 2 is a circuit diagram of the power supply switching module of the present invention;
fig. 3 is a circuit diagram of the charging module of the present invention;
fig. 4 is a circuit diagram of the power supply state monitoring module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Referring to fig. 1, the utility model provides a power transmission line hybrid power supply structure block diagram based on solar energy and inductive energy acquisition; the method comprises the following steps: the power supply system comprises a power supply conversion module 3, an induction energy taking module 1, a solar battery 2, a charging module 4, a lithium battery pack 5, a boosting module 6, a power supply switching module 7 and a power supply state monitoring module 8, wherein the input end of the power supply conversion module 3 is connected with the output end of the induction energy taking module 1 and the output end of the solar battery 2, and the induction energy taking module 1 is installed on a power transmission line and used for inducing alternating voltage; the input end of the charging module 4 is connected with the first output end of the power conversion module 3; the input end of the lithium battery pack 5 is connected with the output end of the charging module 4; the output end of the lithium battery pack 5 is connected with the input end of the boosting module 6; the output end of the boosting module 6 is connected with the first input end of the power supply switching module 7 and the first input end of the power supply state monitoring module 8, and the second input end of the power supply switching module 7 and the second input end of the power supply state monitoring module 8 are connected with the second output end of the power supply conversion module 3.
In the preferred embodiment of the present invention, when the current of the power transmission line is in the normal range or the illumination is sufficient, the sensing energy-taking module 1 or the solar battery 2 provides the power supply for the power supply state monitoring module 8, and the lithium battery pack 5 is charged through the dynamic self-adjusting charging module 4; when the current of the transmission line is small or the illumination is weak, the two are mixed and balanced to provide power for the power supply state monitoring module 8; when the power transmission line is powered off and is not illuminated, the power supply switching module 7 enables the power supply to be switched to the lithium battery pack 5, and the lithium battery pack 5 continuously provides the power supply for the power supply state monitoring module 8 through the boosting module 6; when the current of the power transmission line is recovered to be within a normal range or the power transmission line is sufficiently illuminated, the power supply switching module 7 enables the power supply to be switched to the power supply conversion module 3 to supply power to the terminal, and meanwhile, the lithium battery pack 5 is charged through the dynamic self-adjusting charging module 4.
Further, the power supply switching module 7 includes a power supply chip 01, and the power supply chip 01 includes a first voltage input pin 010, a second voltage input pin 011, a first boost enable pin 012, a first ground pin 013, a second boost enable pin 014, a charging state indication pin 015, a first voltage output pin 016, and a second voltage output pin 017; the first voltage input pin 010 is connected with a power conversion module 3, the second voltage input pin 011 is connected with a boosting module 6, and the first boosting enable pin 012, the first grounding pin 013 and the second boosting enable pin 014 are grounded; a first resistor R1 connected between the charging status indication pin 015 and the first voltage output pin 016; a capacitor C1 is connected between the second voltage output pin 017 and the ground, and is connected to the voltage output terminal 11.
Further, when the voltage value of the voltage boosting module 6 is smaller than the voltage value of the power conversion module 3, the second voltage input pin 011 is closed, and the first voltage input pin 010 is turned on; when the voltage value of the power conversion module 3 is smaller than the voltage value of the boost module 6, the second voltage input pin 011 is turned on, and the first voltage input pin 010 is turned off.
Specifically, under normal conditions, when the voltage value of the voltage boosting module 6 is smaller than the voltage value of the power conversion module 3, the second voltage input pin 011 is closed, and the first voltage input pin 010 is turned on; supplying power to the terminal equipment; when the power transmission line is powered off or the current of the power transmission line is small, the induction energy-taking module 1 cannot work normally, the voltage value of the power conversion module 3 is smaller than that of the boosting module 6, the second voltage input pin 011 is switched on, and the first voltage input pin 010 is switched off to supply power to the terminal equipment continuously.
Further, the charging module 4 includes:
a power chip 02, the power chip 02 pins including a first power input pin 020, a signal input pin 022, a variable pin 021, a battery connection pin 025, a first pulse pin 024, and a second pulse pin 023; the first power input pin 020 is connected with a voltage input end 12, the signal input pin 022 is connected with a signal input end 9, the power supply is connected with a battery connection pin 025 and the ground end, the first pulse pin 024 is connected with one end of a second resistor R2, and the second pulse pin 023 is connected with one end of a third resistor R3;
a first triode VT1, the base of the first triode VT1 is connected with the other end of the second resistor R2, the collector of the first triode VT1 is connected with one end of a fifth resistor R5, and the emitter of the first triode VT1 is grounded;
a second triode VT2, the base of the second triode VT2 is connected with the other end of the third resistor R3, the collector of the second triode VT2 is connected with one end of a fourth resistor R4, and the emitter of the second triode VT2 is grounded;
a sixth resistor R6, wherein one end of the sixth resistor R6 is connected between the fifth resistor R5 and ground.
Further, the charging module 4 has a multi-stage charging current control, and automatically adjusts the charging current of the lithium battery pack 5 according to the voltage of the current induction energy-taking module 1 and the solar battery 2.
Specifically, the charging module 4 has a multistage charging current control function, and the charging current of the lithium battery pack 5 is automatically adjusted according to the voltage of the current induction energy-taking module 1 and the charging current of the solar battery 2, so that the energy of the induction energy-taking module 1 and the energy of the solar battery 2 can be utilized to the greatest extent, and the overall electricity-taking efficiency of the device is improved.
Further, the power supply state monitoring module 7 includes:
a power supply status monitor chip 03, the pins of which include a second power input pin 030, a working voltage pin 031, a threshold voltage pin 032, a second ground pin 033, a battery voltage detection output pin 034, and a low-level effective battery voltage detection output pin 035; the second power input pin 030 is connected to the voltage input terminal 12, the working voltage pin 031 is connected between a seventh resistor R7 and an eighth resistor R8, one end of the seventh resistor R7 is connected to the voltage input terminal 12, the threshold voltage pin 032 is connected between the eighth resistor R8 and a ninth resistor R9, the ninth resistor R9 is connected to the ground of the second ground pin 033, the battery voltage detection output pin 034 is connected to the variable pin 021, and the low-level effective battery voltage detection output pin 035 is connected to the power switch 10.
Further, the power supply state monitoring module 8 is provided with an uplink threshold and a downlink threshold, and the seventh resistor R7, the eighth resistor R8 and the ninth resistor R9 control the uplink threshold and the downlink threshold.
Specifically, the setting of the uplink threshold and the downlink threshold is determined by a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9, and parameters are set according to the actual working state of the power supply, so that not only the normal operation of the power supply is ensured, but also the reliability of the state switching process of the power supply is ensured, and the power supply cannot oscillate.
Further, when the voltage value of the voltage input end 12 is smaller than the downlink threshold value, the power supply of the terminal is turned off, and the lithium battery pack 5 enters a full-speed charging state; when the voltage value of the voltage input end 12 is larger than the uplink threshold value, the terminal is powered on, the charging module 4 performs dynamic self-adjustment, and the lithium battery pack 5 is continuously charged.
Further, when the current of the power transmission line is lower than a preset value or the illumination is insufficient, the boosting module 6 and the power conversion module 3 are mixed and balanced to provide power for the power supply state monitoring module 8; when the power transmission line is powered off and is not illuminated, the power supply switching module 7 controls the power supply to be switched to the lithium battery pack 5, and the lithium battery pack 5 continuously provides power for the power supply state monitoring module 8 through the boosting module 6; when the current of the power transmission line is recovered to a preset range or the illumination is sufficient, the power supply switching module 7 switches the power supply to the power supply conversion module 3 to supply power to the terminal, and meanwhile, the lithium battery pack 5 is charged through the dynamic self-adjusting charging module 4.
Further, the voltage boost module 6 and the power conversion module 3 are both provided with a voltage converter for converting the high voltage/low voltage dc power into the low voltage/high voltage dc power.
To sum up, the utility model discloses can be in continuous operating condition at transmission line power failure or transmission line on-line monitoring device power under the undercurrent condition.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. The utility model provides a transmission line hybrid power supply based on solar energy and response are got can which characterized in that includes:
the input end of the power conversion module is connected with the output end of an induction energy taking module and the output end of a solar cell, and the induction energy taking module is arranged on the power transmission line and used for inducing alternating voltage;
the input end of the charging module is connected with the first output end of the power supply conversion module;
the input end of the lithium battery pack is connected with the output end of the charging module, and the output end of the lithium battery pack is connected with the input end of a boosting module;
the output end of the boosting module is connected with a first input end of a power supply switching module and a first input end of a power supply state monitoring module, and a second input end of the power supply switching module and a second input end of the power supply state monitoring module are connected with a second output end of the power supply conversion module.
2. The power transmission line hybrid power supply based on solar energy and inductive energy acquisition of claim 1, wherein the power supply switching module comprises a power supply chip, and the power supply chip comprises a first voltage input pin, a second voltage input pin, a first boost enable pin, a first ground pin, a second boost enable pin, a charge state indication pin, a first voltage output pin, and a second voltage output pin; the first voltage input pin is connected with the power conversion module, the second voltage input pin is connected with the boosting module, and the first boosting enabling pin, the first grounding pin and the second boosting enabling pin are grounded; a first resistor is connected between the charging state indication pin and the first voltage output pin; and the capacitor is connected between the second voltage output pin and the grounding end and is connected with the voltage output end.
3. The power transmission line hybrid power supply based on solar energy and induction energy acquisition of claim 2, wherein when the voltage value of the boosting module is smaller than the voltage value of the power conversion module, the second voltage input pin is closed, and the first voltage input pin is turned on; when the voltage value of the power conversion module is smaller than the voltage value of the boosting module, the second voltage input pin is conducted, and the first voltage input pin is closed.
4. The power transmission line hybrid power supply based on solar energy and inductive energy acquisition of claim 1, wherein the charging module comprises:
the power chip comprises a first power input pin, a signal input pin, a variable pin, a battery connection pin, a first pulse pin and a second pulse pin; the first power input pin is connected with a voltage input end, the signal input pin is connected with a signal input end, the power supply is connected with the battery connection pin and a ground end, the first pulse pin is connected with one end of a second resistor, and the second pulse pin is connected with one end of a third resistor;
the base electrode of the first triode is connected with the other end of the second resistor, the collector electrode of the first triode is connected with one end of a fifth resistor, and the emitting electrode of the first triode is grounded;
the base electrode of the second triode is connected with the other end of the third resistor, the collector electrode of the second triode is connected with one end of a fourth resistor, and the emitting electrode of the second triode is grounded;
and one end of the sixth resistor is connected between the fifth resistor and the grounding end.
5. The power supply of claim 1, wherein the charging module has a multi-stage charging current control, and the charging current of the lithium battery pack is automatically adjusted according to the current voltage of the inductive energy-taking module and the solar battery.
6. The power transmission line hybrid power supply based on solar energy and inductive energy acquisition of claim 4, wherein the power supply state monitoring module comprises:
the power supply state monitoring chip comprises a second power supply input pin, a working voltage pin, a threshold voltage pin, a second grounding pin, a battery voltage detection output pin and a low-level effective battery voltage detection output pin; the second power input pin is connected with the voltage input end, the working voltage pin is connected between a seventh resistor and an eighth resistor, one end of the seventh resistor is connected with the voltage input end, the threshold voltage pin is connected between the eighth resistor and a ninth resistor, the ninth resistor is connected with the second grounding pin in a grounding mode, the battery voltage detection output pin is connected with the variable pin, and the low-level effective battery voltage detection output pin is connected with the power switch.
7. The power transmission line hybrid power supply based on solar energy and induction energy acquisition of claim 6, wherein the power supply state monitoring module is provided with an uplink threshold and a downlink threshold, and the seventh resistor, the eighth resistor and the ninth resistor control the uplink threshold and the downlink threshold.
8. The hybrid power supply for transmission lines based on solar energy and inductive energy acquisition as claimed in claim 7, wherein when the voltage value at the voltage input end is less than the downlink threshold value, the terminal power supply is turned off, and the lithium battery pack enters a full-speed charging state; and when the voltage value of the voltage input end is greater than the uplink threshold value, the terminal supplies power and is turned on, and the charging module performs dynamic self-adjustment to continuously charge the lithium battery pack.
9. The power transmission line hybrid power supply based on solar energy and induction energy acquisition of claim 8, wherein when the current of the power transmission line is lower than a predetermined value or the illumination is insufficient, the boosting module and the power supply conversion module are used for hybrid equalization to provide power for the power supply state monitoring module; when the power transmission line is powered off and is not illuminated, the power supply switching module controls a power supply to be switched to the lithium battery pack, and the lithium battery pack continuously provides the power supply for the power supply state monitoring module through the boosting module; when the current of the power transmission line is recovered to be within a preset range or the illumination is sufficient, the power supply switching module enables the power supply to be switched to the power supply conversion module to supply power to the terminal, and meanwhile, the charging module charges the lithium battery pack through dynamic self-adjustment.
10. The power transmission line hybrid power supply based on solar energy and induction energy acquisition as claimed in claim 1, characterized in that the boosting module and the power conversion module are both provided with a voltage converter for converting high voltage/low voltage direct current into low voltage/high voltage direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922212516.3U CN211377693U (en) | 2019-12-11 | 2019-12-11 | Power transmission line hybrid power supply based on solar energy and induction energy obtaining |
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| CN201922212516.3U CN211377693U (en) | 2019-12-11 | 2019-12-11 | Power transmission line hybrid power supply based on solar energy and induction energy obtaining |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688404A (en) * | 2020-11-30 | 2021-04-20 | 国网辽宁省电力有限公司阜新供电公司 | Electromagnetic field combined energy-taking power supply device applied to transmission line sensor |
| CN113890156A (en) * | 2021-10-12 | 2022-01-04 | 国家电网有限公司 | Cable monitoring equipment power supply system combining multiple energy taking modes |
| CN116317058A (en) * | 2023-05-15 | 2023-06-23 | 北京国电通网络技术有限公司 | Intelligent monitoring device and intelligent power supply control method |
-
2019
- 2019-12-11 CN CN201922212516.3U patent/CN211377693U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688404A (en) * | 2020-11-30 | 2021-04-20 | 国网辽宁省电力有限公司阜新供电公司 | Electromagnetic field combined energy-taking power supply device applied to transmission line sensor |
| CN113890156A (en) * | 2021-10-12 | 2022-01-04 | 国家电网有限公司 | Cable monitoring equipment power supply system combining multiple energy taking modes |
| CN116317058A (en) * | 2023-05-15 | 2023-06-23 | 北京国电通网络技术有限公司 | Intelligent monitoring device and intelligent power supply control method |
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