CN111913037A - Satellite communication data acquisition module of lightning protection design - Google Patents
Satellite communication data acquisition module of lightning protection design Download PDFInfo
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- CN111913037A CN111913037A CN202010795705.2A CN202010795705A CN111913037A CN 111913037 A CN111913037 A CN 111913037A CN 202010795705 A CN202010795705 A CN 202010795705A CN 111913037 A CN111913037 A CN 111913037A
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- signal processing
- processing unit
- data acquisition
- main control
- satellite communication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
Abstract
The invention relates to the technical field of power equipment, and particularly discloses a lightning protection designed satellite communication data acquisition module, which comprises a power supply module, a main control module, a signal processing unit and an antenna, wherein the power supply module is connected with the main control module; wherein: the power supply module is used for supplying power to the main control module and the signal processing power supply; the main control module is used for realizing power utilization data acquisition; the signal processing unit is used for converting the data transmitted by the main control module into an analog signal; the antenna is used for realizing communication with the satellite so that the signal processing unit can send the analog signal to the satellite to finish uploading of the power utilization data; the signal processing unit is connected with the antenna through a shielded cable. The invention provides a satellite communication data acquisition module with a lightning protection design, which can solve the problem that the existing information acquisition module is easy to damage in thunderstorm weather.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a satellite communication data acquisition module with a lightning protection design.
Background
With the development of satellite communication technology, the cost required for data transmission using satellite communication technology is lower and lower. At present, for places with inconvenient traffic such as the field or mountainous areas, power supply enterprises often install an information acquisition device at the place to acquire local power utilization data, and then upload the acquired power utilization data to a background terminal through a satellite communication technology.
Specifically, referring to fig. 1, the conventional information acquisition apparatus generally includes a power module 1, a main control module 2, a signal processing unit 3, and an antenna 4; wherein:
the power supply module 1 is used for supplying power to the main control module 2 and the signal processing power supply;
the main control module 2 is used for realizing power utilization data acquisition;
the signal processing unit 3 is used for converting the data transmitted by the main control module 2 into analog signals;
the antenna 4 is used for realizing communication with a satellite, so that the signal processing unit 3 sends the analog signal to the satellite to finish uploading of power utilization data.
Generally, since the distance between the signal processing unit 3 and the antenna 4 is long, the signal processing unit 3 and the antenna 4 are usually connected by a long cable 5.
However, in the actual use process, operation and maintenance personnel find that the reliability of the current information acquisition device is poor, damage is easy to occur after thunderstorm weather, and the normal operation of the power supply service is greatly influenced.
Therefore, there is a need for an improvement to existing information collection devices to address the problem of their susceptibility to damage after thunderstorm weather.
Disclosure of Invention
It should be noted that, after a great deal of experiments and summaries, the inventor finds that the existing information acquisition device is easily damaged after thunderstorm weather because:
firstly, the current information acquisition device generally implements the same anti-interference standard as a handheld electronic device, and most electronic components have lower working voltage and impact voltage resistance level and are easy to damage due to strong electromagnetic pulse influence;
the conventional information acquisition device is generally installed in an outdoor environment, the working environment is severe, the antenna is connected with the signal processing unit through a long cable, the long cable is usually arranged in an overhead mode, electromagnetic pulses of lightning strike are easily induced to form high voltage, and electronic components working at low voltage in the signal processing unit are damaged.
One objective of the present invention is to provide a lightning protection satellite communication data acquisition module, which can solve the problem that the existing information acquisition module is easily damaged after thunderstorm weather.
In order to achieve the above purpose, the invention provides a lightning protection designed satellite communication data acquisition module, which comprises a power module, a main control module, a signal processing unit and an antenna; wherein:
the power supply module is used for supplying power to the main control module and the signal processing power supply;
the main control module is used for realizing power utilization data acquisition;
the signal processing unit is used for converting the data transmitted by the main control module into an analog signal;
the antenna is used for realizing communication with the satellite so that the signal processing unit can send the analog signal to the satellite to finish uploading of the power utilization data;
the signal processing unit is connected with the antenna through a shielded cable.
Preferably, the method further comprises the following steps:
the metal casing, metal casing is equipped with the shielding space, signal processing unit is located in the shielding space.
Preferably, the shielded cable comprises a wire core and a shielding layer coated outside the wire core, and the shielding layer is in contact connection with the metal shell.
Preferably, the shielding layer is common to the metal housing.
Preferably, a first voltage dependent resistor and a first transient diode are arranged at a joint of the wire core and the signal processing unit.
Preferably, a second transient diode is arranged at a joint between the main control module and the signal processing unit.
Preferably, the power module sequentially includes an ac input interface, a second varistor, a third transient diode, an ac-dc conversion circuit, and a dc output interface.
The invention has the beneficial effects that: the utility model provides a satellite communication data acquisition module of lightning protection design adopts shielded cable to replace traditional ordinary cable to carry out antenna and signal processing unit's connection, can greatly reduce the produced electromagnetic pulse when taking a thunder, finally improves the satellite communication data acquisition module's of lightning protection design reliability, solves current information acquisition module and appears damaging the problem behind thunderstorm weather easily.
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, and 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 these drawings without inventive exercise.
Fig. 1 is a block diagram of a conventional information acquisition apparatus provided in the background art;
FIG. 2 is a block diagram of a satellite communication data acquisition module with a lightning protection design according to an embodiment;
fig. 3 is a schematic diagram of the connection between the shielding layer and the metal housing according to the embodiment.
In the figure:
1. a power supply module; 101. an alternating current input interface; 102. a second voltage dependent resistor; 103. a third transient diode; 104. an AC-DC conversion circuit; 105. a direct current output interface;
2. a main control module; 201. a second transient diode;
3. a signal processing unit; 301. a first voltage dependent resistor; 302. a first transient diode;
4. an antenna;
5. a long cable;
6. a shielded cable; 601. a wire core; 602. a shielding layer; 603. an insulating layer;
7. a metal housing.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 2, the present embodiment provides a lightning protection designed satellite communication data acquisition module, which includes a power module 1, a main control module 2, a signal processing unit 3, and an antenna 4; wherein:
the power supply module 1 is used for supplying power to the main control module 2 and the signal processing power supply;
the main control module 2 is used for realizing power utilization data acquisition;
the signal processing unit 3 is used for converting the data transmitted by the main control module 2 into analog signals;
the antenna 4 is used for realizing communication with a satellite, so that the signal processing unit 3 sends the analog signal to the satellite to finish uploading of power utilization data;
the signal processing unit 3 and the antenna 4 are connected through a shielded cable 6.
It should be noted that, after a great deal of experiments and summaries, the inventor finds that the existing information acquisition device is easily damaged after thunderstorm weather because:
firstly, the current information acquisition device generally implements the same anti-interference standard as a handheld electronic device, and most electronic components have lower working voltage and impact voltage resistance level and are easy to damage due to strong electromagnetic pulse influence;
secondly, the existing information acquisition devices are generally installed in an outdoor environment, the working environment is severe, the antenna 4 is connected with the signal processing unit 3 through a long cable 5, and the long cable 5 is generally arranged in an overhead manner, so that electromagnetic pulses of lightning strikes are easily induced to form high voltage, and electronic components in the signal processing unit 3 which work at low voltage are damaged.
Therefore, in the embodiment, the shielded cable 6 is used for replacing a traditional common cable to connect the antenna 4 and the signal processing unit 3, so that electromagnetic pulses generated during lightning strike can be greatly reduced, the reliability of the satellite communication data acquisition module with a lightning protection design is finally improved, and the problem that the existing information acquisition module is easily damaged in thunderstorm weather is solved.
Referring to fig. 3, the satellite communication data acquisition module further includes a metal housing 7, the metal housing 7 is provided with a shielding space, and the signal processing unit 3 is located in the shielding space.
Specifically, the metal shell 7 may shield the signal processing unit 3, protect the signal processing unit 3, and reduce electromagnetic pulses generated by lightning induced by the signal processing unit 3, thereby preventing the signal processing unit 3 from generating large induced electromagnetic pulses inside.
Further, the shielded cable 6 comprises a wire core 601, a shielding layer 602 and an insulating layer 603, wherein the shielding layer 602 is coated outside the wire core 601, and is in contact connection with the metal shell 7; and the shielding layer 602 is common to the metal housing 7.
It should be noted that if there is a gap between the shielding cable 6 and the metal shell 7, a lightning strike may affect the signal processing unit 3 and the wire core 601 through the gap, resulting in a larger induced electromagnetic pulse generated by the signal processing unit 3 and the wire core 601; in this embodiment, the shielding layer 602 is in contact with the metal casing 7 to prevent the gap from being generated, so that the anti-interference capability of the lightning protection satellite communication data acquisition module can be further improved.
Optionally, a first voltage dependent resistor 301 and a first transient diode 302 are disposed at a joint of the wire core 601 and the signal processing unit 3.
Preferably, the first varistor 301 is a low-voltage varistor; the first transient diode 302 is a low voltage transient diode.
The piezoresistor is a voltage-limiting type protection device. By utilizing the nonlinear characteristic of the piezoresistor, when an overvoltage appears between two poles of the piezoresistor, the piezoresistor can clamp the voltage to a relatively fixed voltage value, thereby realizing the protection of the signal processing unit 3.
A transient diode is a high performance protection device. When two poles of the transient diode are impacted by reverse transient high energy, it can change the high impedance between the two poles into low impedance at a very fast speed, absorb the surge power of thousands of watts, clamp the voltage between the two poles at a preset value, effectively protect the electronic components in the signal processing unit 3 from being damaged by various induced electromagnetic pulses.
Optionally, a second transient diode 201 is disposed at a joint between the main control module 2 and the signal processing unit 3.
Preferably, the second transient diode 201 is a high power low voltage transient diode.
Specifically, the main control module 2 is connected with the satellite signal processing unit 3 through a communication interface to complete data exchange, and a high-power low-voltage transient diode is additionally arranged on the communication interface to absorb energy impact caused by lightning stroke electromagnetic pulse and protect the main control module 2.
Optionally, the power module 1 sequentially includes an ac input interface 101, a second voltage dependent resistor 102, a third transient diode 103, an ac-dc conversion circuit 104, and a dc output interface 105.
Preferably, the second varistor 102 is a high-voltage varistor; the third transient diode 103 is a high voltage transient diode.
Specifically, the ac input interface 101 is directly connected to the power grid, the ac-dc conversion circuit 104 can convert the high-voltage ac supplied by the power grid into the low-voltage dc required by the signal processing module and the main control module 2, and since the power grid has a large surge protector installed at the outlet air switch of the transformer for lightning surge protection, the second varistor 102 and the third transient diode 103 are only installed at the ac power supply access of the power module 1 in this embodiment to absorb the lightning energy from the power grid.
The satellite communication data acquisition module adopting the lightning protection design provided by the embodiment can effectively reduce the influence of lightning on the satellite communication data acquisition module and effectively improve the fault-free working time of a product; therefore, the operation and maintenance cost of a data acquisition system formed by the satellite communication data acquisition module is reduced, the material cost and the labor expenditure for replacing the satellite communication module are reduced, the garbage formed by the damage of the electronic equipment caused by lightning stroke is reduced, and the environmental protection is facilitated besides good economic benefit.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A satellite communication data acquisition module with a lightning protection design comprises a power supply module, a main control module, a signal processing unit and an antenna; wherein:
the power supply module is used for supplying power to the main control module and the signal processing power supply;
the main control module is used for realizing power utilization data acquisition;
the signal processing unit is used for converting the data transmitted by the main control module into an analog signal;
the antenna is used for realizing communication with the satellite so that the signal processing unit can send the analog signal to the satellite to finish uploading of the power utilization data;
it is characterized in that the preparation method is characterized in that,
the signal processing unit is connected with the antenna through a shielded cable.
2. The lightning protection engineered satellite communication data acquisition module of claim 1, further comprising:
the metal casing, metal casing is equipped with the shielding space, signal processing unit is located in the shielding space.
3. The lightning protection designed satellite communication data acquisition module according to claim 2, wherein the shielded cable comprises a wire core and a shielding layer covering the outside of the wire core, and the shielding layer is in contact connection with the metal shell.
4. The lightning protected satellite communication data acquisition module of claim 3, wherein the shielding layer is co-grounded with the metal housing.
5. The lightning protection designed satellite communication data acquisition module according to claim 3, wherein a first voltage dependent resistor and a first transient diode are arranged at a joint of the wire core and the signal processing unit.
6. The lightning protection designed satellite communication data acquisition module according to claim 1, wherein a second transient diode is disposed at a joint between the main control module and the signal processing unit.
7. The lightning protection designed satellite communication data acquisition module according to claim 1, wherein the power module comprises an alternating current input interface, a second voltage dependent resistor, a third transient diode, an alternating current to direct current conversion circuit and a direct current output interface in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010795705.2A CN111913037A (en) | 2020-08-10 | 2020-08-10 | Satellite communication data acquisition module of lightning protection design |
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| CN202010795705.2A CN111913037A (en) | 2020-08-10 | 2020-08-10 | Satellite communication data acquisition module of lightning protection design |
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