CN113949139A - Power supply control circuit for each module of buoy - Google Patents
Power supply control circuit for each module of buoy Download PDFInfo
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- CN113949139A CN113949139A CN202111397300.4A CN202111397300A CN113949139A CN 113949139 A CN113949139 A CN 113949139A CN 202111397300 A CN202111397300 A CN 202111397300A CN 113949139 A CN113949139 A CN 113949139A
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- 238000001514 detection method Methods 0.000 claims abstract description 37
- 230000004913 activation Effects 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims description 24
- 239000003990 capacitor Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/22—Inflatable buoys with gas generating means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a power supply control circuit for modules of a buoy, belongs to the technical field of sonar buoy control, and solves the technical problems that the service life of the buoy is at least shortened and even a battery is damaged due to the fact that a certain module of a product in the prior art is abnormal in control link. The buoy automatic control device comprises an activation control circuit (1), an inflation device power-on control circuit (2), a self-destruction depth setting device power-on control circuit (3), an electronic cabin power-on control circuit (4) and a detection control circuit (5), wherein the activation control circuit, the inflation device power-on control circuit, the self-destruction depth setting device power-on control circuit and the detection control circuit are all electrically connected with an internal power supply and are charged in a time sequence mode.
Description
Technical Field
The invention belongs to the technical field of sonar buoy circuits, and particularly relates to a circuit for controlling power supply of each module of a buoy.
Background
For the buoy, after entering water, the buoy needs to complete a series of actions such as activating inflation, depth setting, electronic cabin working, self-destruction and the like, if one module fails to control, the working life of the whole buoy is affected, and even batteries are damaged, so that effective power supply output control is particularly important.
At present, similar buoy products at home and abroad are known to lack sequential control in power supply control design, and power supply output of each module is not independent enough, so that common design of a working mode and a detection mode in power supply control is not reflected.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a circuit for controlling power supply of each module of a buoy, which solves the technical problems that the service life of the buoy is at least reduced and even a battery is damaged due to the fact that a certain module in the product in the prior art is abnormal in control link. The technical scheme of the scheme has a plurality of technical beneficial effects, which are described as follows:
the utility model provides a circuit of each module power supply control of buoy, the buoy is including going into water activation device, aerating device, the depthkeeping device, self-destruction device and electron cabin, go into water activation device, aerating device, the depthkeeping device, self-destruction device and the independent power supply interface of electron cabin point, the buoy is equipped with internal power and detection power, still include activation control circuit (1), aerating device power-on control circuit (2), self-destruction depthkeeping device power-on control circuit (3), power-on control circuit (4) and detection control circuit (5) on the electron cabin, and all be connected with internal power electricity, wherein:
the activation control circuit (1) is connected with the detection control circuit and the charging control circuit (2) of the air charging device;
the buoy is short-circuited at the two end ports after entering water, and an internal power supply is in a working state;
the charging control circuit (2) of the charging device is connected with the charging control circuit (4) of the electronic cabin,
the charging device can be charged, and the electronic cabin is automatically disconnected when the power-on control circuit (4) of the electronic cabin supplies power to the electronic cabin;
the self-destruction depth-setting device is continuously powered by the internal power supply under the control of an activation control circuit (1) by a power-on control circuit (3);
the electronic cabin power-on control circuit (4) is controlled by the activation control circuit (1) to supply power to the electronic cabin through an internal power supply, or the detection control circuit (5) controls to supply power to the electronic cabin through an external power supply;
after the buoy enters water, the inflation device and the electronic cabin are respectively powered on in a time sequence mode, and when the power supply of the electronic cabin is controlled by the power-on control circuit (4) of the electronic cabin, the power-on control circuit (2) of the inflation device is powered off.
The depth setting device and the self-destruction device share one power interface, and the power supply is controlled by the power-on control circuit (3) of the self-destruction depth setting device to be continuously supplied with power through an internal power supply.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
by realizing independent power supply output control of each module of the buoy and controlling in a time sequence mode, the method can reduce bad hidden dangers and ensure normal power supply of the battery, and has the advantages of safety, reliability, easiness in realization and high integration efficiency. The invention adopts a design idea of supplying power to each module in a staggered manner according to requirements, the design does not need the control of controllers such as a conventional MCU and the like, the automatic power-on and power-off functions are completed by utilizing the charge-discharge principle, the output control of the power supply required by each module is realized, and the power supply control under the detection mode is compatible. The implementation circuit is exquisite and simple in design, and the control function can be realized by adopting conventional similar devices.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the circuit control of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in practical implementation, and the type, quantity and proportion of the components in practical implementation can be changed freely, and the layout of the components can be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that aspects may be practiced without these specific details. In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The circuit for controlling the power supply of each module of the buoy shown in fig. 1 is indicated by letters in the figure as corresponding device initials, for example, YBDC inflation device; an SSDC body-building device and a self-destruction device; a DC electronics compartment; a TODC external power supply; DL1 first water inlet activation device (left in the figure); DL2 detection port; BAT internal power supplies, e.g. lithium batteries, are specified as follows:
buoy among the prior art is including going into water activation device, aerating device, depthkeeping device, self-destruction device and electron cabin, go into water activation device, aerating device, depthkeeping device, self-destruction device and the independent power supply interface of electron cabin point, buoy is equipped with internal power and detection power, still including activation control circuit 1, aerating device power-on control circuit 2, self-destruction depthkeeping device power-on control circuit 3, electronic cabin power-on control circuit 4 and detection control circuit 5, and all be connected with internal power electricity, with wherein:
the activation control circuit 1 is connected with the detection control circuit and the charging control circuit 2 of the charging device;
the buoy is short-circuited at the two end ports after entering water, and an internal power supply is in a working state;
the charging control circuit 2 of the charging device is connected with the charging control circuit 4 of the electronic cabin,
the charging device can be charged, and the electronic cabin is automatically disconnected when the power-on control circuit 4 of the electronic cabin supplies power to the electronic cabin;
the self-destruction depth-setting device power-on control circuit 3 is controlled by the activation control circuit 1 to continuously supply power to the self-destruction depth-setting device through an internal power supply;
the electronic cabin power-on control circuit 4 is controlled by the activation control circuit 1 to supply power to the electronic cabin through an internal power supply, or the detection control circuit 5 is controlled to supply power to the electronic cabin through an external power supply;
after the buoy enters water, the inflation device and the electronic cabin are respectively powered in a time sequence mode, and when the power supply of the electronic cabin is controlled by the power-on control circuit 4 of the electronic cabin, the power-on control circuit 2 of the inflation device is powered off.
The depth setting device and the self-destruction device share one power interface, and the power-on control circuit 3 of the self-destruction depth setting device controls the power supply continuously through an internal power supply.
The control mode of the circuit, as shown in fig. 2, is as follows:
the activation control circuit 1 comprises a first port DL1, a second port (grounded), a current limiting resistor R1, and an optical coupler D1 (prior art product, including photodiode and transistor, the optical coupler D1 in the figure adopts four ports, and may adopt other number of ports), the first port DL1 and the second port (grounded) are leading-out ports, wherein,
one end of the first port DL1 is connected with the optocoupler D1, and the other end of the first port DL1 is grounded;
the control end of the optical coupler is connected with an internal power supply, and the output end of the optical coupler is connected with an electrifying control circuit 2 of the inflating device;
the water inlet activation device is connected with the input end of a current limiting resistor R1 through a first port DL1, and the output end of R1 is connected with an optical coupler D1;
after the water-entering activation device enters water, seawater enters, the first port DL1 and the second port (grounded) form a short circuit, so that the optical coupler D1 works, and the internal power supply BAT is controlled to power on the air charging device. The first port DL1 and the second port (ground) are led out for the purpose of: the optical coupler D1 works because no conduction is formed in the air and a short circuit is formed after seawater contacts.
As a specific embodiment provided in the present application, the charging control circuit 2 of the inflator includes a capacitor C1 for charging and discharging, a resistor R2, a resistor R3, and a P-channel MOS transistor U1, wherein:
the resistor R2 and the capacitor C1 are connected in parallel, and a circuit formed by connecting the resistor R2 and the capacitor C1 in parallel is connected with the resistor R3 in series to form control over the charging and discharging time of the charging and discharging control circuit 2 on the air charging device and the voltage value of the static working point;
the drain electrode of the MOS tube U1 is connected with the air charging device, the source electrode is connected with an internal power supply, the grid electrode is connected with the output end of the resistor R2 and the input end of the resistor R3, the input end of the resistor R2 is connected with the internal power supply, and the output end of the resistor R3 is connected with the output of the optical coupler;
when the optical coupler works, the resistor R2 and the resistor R3 carry out voltage division of an internal power supply to control the on or off of the MOS tube U1;
the optical coupler C1 is charged, and after charging, the resistor R2 and the resistor R3 divide voltage to control the MOS tube U1 to be turned on, preferably, the enhanced MOS tube U1.
As an embodiment provided in the present disclosure, the electronic cabin power-on control circuit 4 includes a capacitor C3 for charging and discharging, a resistor R7, a resistor R8, a P-channel MOS transistor U3, a capacitor C3, a resistor R7, and a resistor R8, which have working parameters that are greater than those of the capacitor C1, the resistor R2, and the resistor R3, and the charging time of the capacitor C3 is longer than that of the capacitor C2, where:
a circuit formed by connecting the resistor R7 and the capacitor C3 in parallel is connected with the resistor R8 in series to control the charging time of the C3 and the voltage value of the static working point of the MOS transistor U3;
the drain electrode of the MOS tube U3 is connected with the electronic cabin, the source electrode is connected with an internal power supply, the grid electrode is connected with the output end of the resistor R7 and the input end of the resistor R8, the input end of the resistor R7 is connected with the internal power supply, and the output end of the resistor R8 is connected with the output of the optical coupler.
Further, the detection circuit also comprises a diode V2, wherein the anode of the diode V2 is connected with the output end of the resistor 8 and the detection control circuit 5, the output end of the resistor 8 is connected with the detection control circuit 5, and the cathode of the diode V2 is connected with the output end of the optocoupler D1;
the diode V2 controls the on or off of the MOS tube U3 according to the working state of the detection control circuit 5, so that the detection control circuit 5 only controls the power supply of the electronic cabin.
As a specific embodiment provided in the present disclosure, the charging control circuit 2 of the inflator further includes a diode V1, an anode of the diode V1 is connected to the drain of the MOS transistor U3, and a cathode thereof is connected to the gate of the MOS transistor U1, wherein:
the MOS tube U3 is conducted, the potential of the grid electrode of the MOS tube U1 is increased, the grid electrode voltage and the source electrode voltage of the MOS tube U1 are reduced, the MOS tube U1 is turned off, and finally the power-off of the air charging device is controlled. The inflation device is turned off after being used, so that the consumption of an internal power supply is saved.
As a specific embodiment provided in the present disclosure, the detection control circuit 5 includes a third port DL2, a fourth port (grounded), an optical coupler D2, and a current limiting resistor R6, where the third port and the fourth port are led out ports, where:
the third port DL2 is connected with the output end of the optocoupler D2, one end of the fourth port is grounded, and the other end of the fourth port is connected with the optocoupler D2;
the control end of the optocoupler D2 is connected with an internal power supply, the output end of the optocoupler D2 is connected with the output end of the resistor R6 through the fourth port and the third port DL2, and the input end of the resistor R6 is connected with the control end of the optocoupler D2;
during detection, the third port and the fourth port are short-circuited or conducted, the optical coupler D2 works, the MOS tube U3 is controlled to be conducted, and power is supplied to the electronic cabin. And integrally detecting before the equipment operates, and judging whether the electronic cabin normally works.
Further, the electronic cabin detection device further comprises an external power supply, the detection control circuit 5 further comprises a diode V3, the anode of the diode V3 is connected with the external power supply, the cathode of the diode V3 is connected with the resistance cabin, and when the detection is carried out, the internal power supply is not consumed to finish the detection of whether the electronic cabin is normal or not. Only power is supplied to the electronic cabin, and other modules do not need to be supplied with power, so that the safety of the use environment under the abnormal working condition is ensured.
Furthermore, the self-destruction device and the depth setting device share one power supply port, and the power supply supplies power to the self-destruction device and the depth setting device continuously.
When the optical coupler D1 works, the output end and the internal power supply form a conduction loop to control the conduction of the MOS tube U2.
In order, the output control of independent power supply of each module of the buoy is realized, so that the adverse hidden danger can be reduced, the normal power supply of the battery is guaranteed, and the method has the advantages of safety, reliability, easiness in realization and high integration efficiency.
The middle capacitor of each module is charged first and then discharged.
The products provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the invention without departing from the inventive concept, and those improvements and modifications also fall within the scope of the claims of the invention.
Claims (9)
1. The utility model provides an each module power supply control's of buoy circuit, the buoy is including going into water activation device, aerating device, depthkeeping device, self-destruction device and electron cabin, go into water activation device, aerating device, depthkeeping device, self-destruction device and the independent power supply interface of electron cabin point, the buoy is equipped with internal power and detection power, a serial communication port, still including activation control circuit (1), aerating device power-on control circuit (2), self-destruction depthkeeping device power-on control circuit (3), power-on control circuit (4) and detection control circuit (5) on the electron cabin, and all be connected with the internal power electricity, wherein:
the activation control circuit (1) is connected with the detection control circuit (5) and the charging control circuit (2) of the air charging device;
the charging control circuit (2) of the charging device is connected with the charging control circuit (4) of the electronic cabin, can charge the charging device, and is automatically disconnected when the charging control circuit (4) of the electronic cabin supplies power to the electronic cabin;
the power-on control circuit (3) of the self-destruction depth-setting device is controlled by the activation control circuit (1) and continuously supplies power to the self-destruction depth-setting device through the internal power supply;
the electronic cabin power-on control circuit (4) is controlled by the activation control circuit (1) to supply power to the electronic cabin through an internal power supply, or the detection control circuit (5) controls to supply power to the electronic cabin through an external power supply;
after the buoy enters water, the buoy supplies power to the air charging device and the electronic cabin respectively in a time sequence mode, and when the power supply of the electronic cabin is controlled by the power supply control circuit (4) of the electronic cabin, the power supply control circuit (2) of the air charging device is powered off;
the depth setting device and the self-destruction device share one power interface, and the power supply is controlled by the power-on control circuit (3) of the self-destruction depth setting device to be continuously supplied with power through an internal power supply.
2. The circuit according to claim 1, characterized in that the activation control circuit (1) comprises a first port, a second port, a current limiting resistor R1 and an optocoupler D1, the first port and the second port being outgoing ports, wherein:
the first port DL1 is connected with the optocoupler D1, one end of the second port is grounded, and the other end of the second port is connected with a light couple D1;
the control end of the optocoupler D1 is connected with the internal power supply BAT, and the output end of the optocoupler D1 is connected with the power-on control circuit (2) of the air charging device;
the first port DL1 is connected with the input end of a current limiting resistor R1, and the output end of R1 is connected with the optocoupler D1;
after the water inlet activation device DL1 enters water, the first port and the second port form a short circuit, so that the optical coupler D1 works to control the internal power supply to power on the air charging device.
3. The circuit according to claim 2, wherein the electrical control circuit (2) for the inflator comprises a capacitor C1 for charging and discharging, a resistor R2, a resistor R3 and a P-channel MOS tube U1, wherein:
the resistor R2 and the capacitor C1 are connected in parallel, and a circuit formed by connecting the resistor R2 and the capacitor C1 in parallel is connected with R3 in series to form control over the charging and discharging time and the voltage value of a static working point of the charging and discharging control circuit (2) on the inflator;
the drain electrode of the MOS tube U1 is connected with the air charging device, the source electrode is connected with the internal power supply, the grid electrode is connected with the output end of the resistor R2 and the input end of the resistor R3, the input end of the resistor R2 is connected with the internal power supply, and the output end of the resistor R3 is connected with the output of the optical coupler;
when the optical coupler D1 works, the resistor R2 and the resistor R3 divide the voltage of an internal power supply to control the on or off of the MOS tube U1; the capacitor C1 is charged, and after charging, the resistor R2 and the resistor R3 divide voltage to control the MOS tube U1 to be turned on.
4. The circuit according to claim 1, wherein the electronic cabin power-on control circuit (4) comprises a capacitor C3, a resistor R7, a resistor R8 and a P-channel MOS tube U3 for charging and discharging, and the operating parameters of the capacitor C3, the resistor R7 and the resistor R8 correspond to operating parameters larger than those of the capacitor C1, the resistor R2 and the resistor R3, and the charging time of the capacitor C3 is longer than that of the capacitor C2, wherein:
the resistor R7 and the capacitor C3 are connected in parallel, and a circuit after the parallel connection is connected with the resistor R8 in series, so that the charging time of the capacitor C3 and the voltage value of the static working point of the MOS transistor U3 are controlled;
the drain electrode of the MOS tube U3 is connected with the electronic cabin, the source electrode is connected with the internal power supply, the grid electrode is connected with the output end of the resistor R7 and the input end of the resistor R8, the input end of the resistor R7 is connected with the internal power supply, and the output end of the resistor R8 is connected with the output of the optical coupler.
5. The circuit according to claim 4, further comprising a diode V2, wherein the anode of the diode V2 is connected with the output end of the resistor 8 and the detection control circuit (5), the output end of the resistor 8 is connected with the detection control circuit (5), and the cathode is connected with the output end of the optocoupler D1;
the diode V2 controls the on or off of the MOS tube U3 according to the working state of the detection control circuit (5) so as to realize the power supply control of the detection control circuit (5) and only the electronic cabin.
6. The circuit according to claim 5, wherein the inflation device power-on control circuit (2) further comprises a diode V1, the anode of the diode V1 is connected with the drain of MOS tube U3, and the cathode thereof is connected with the gate of MOS tube U1, wherein:
the MOS tube U3 is conducted, the potential of the grid electrode of the MOS tube U1 is increased, the grid electrode voltage and the source electrode voltage of the MOS tube U1 are reduced, the MOS tube U1 is turned off, and finally the power-off of the inflating device is controlled.
7. The circuit according to claim 5, characterized in that the detection control circuit (5) comprises a third port, a fourth port, an optical coupler D2 and a current limiting resistor R6, the third port and the fourth port being outgoing ports, wherein:
the third port DL2 is connected with the output end of the optocoupler D2, one end of the third port is grounded, and the other end of the third port is connected with a light couple D2;
the control end of the optical coupler D2 is connected with the internal power supply, the output end of the optical coupler D2 is connected with the output end of a third port DL2 and the output end of a resistor R6 through the fourth port, and the input end of an R6 is connected with the control end of the optical coupler D2;
during detection, the third port and the fourth port are short-circuited or conducted, the optical coupler D2 works to control the MOS tube U3 to be conducted, and power is only supplied to the electronic cabin through the reverse cut-off function of the diode V2.
8. The circuit according to claim 7, further comprising an external power supply, wherein the detection control circuit (5) further comprises a diode V3, wherein the anode of the diode V3 is connected with the external power supply, the cathode of the diode V3 is connected with the resistance compartment, and when the detection is performed, the detection whether the electronic compartment is normal is completed without consuming the internal power supply.
9. The circuit of claim 8, wherein the self-destruction device and the depth setting device share a power supply port, a power supply is used for continuously supplying power to the self-destruction device and the depth setting device, and when the optical coupler D1 works, the output end and the internal power supply form a conduction loop to control the conduction of the MOS tube U2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111397300.4A CN113949139B (en) | 2021-11-23 | 2021-11-23 | Circuit for controlling power supply of each module of buoy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111397300.4A CN113949139B (en) | 2021-11-23 | 2021-11-23 | Circuit for controlling power supply of each module of buoy |
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| CN113949139B CN113949139B (en) | 2024-05-24 |
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