CN111969573A - Beidou/GNSS receiver lightning protection strategy method - Google Patents
Beidou/GNSS receiver lightning protection strategy method Download PDFInfo
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- CN111969573A CN111969573A CN202010824437.2A CN202010824437A CN111969573A CN 111969573 A CN111969573 A CN 111969573A CN 202010824437 A CN202010824437 A CN 202010824437A CN 111969573 A CN111969573 A CN 111969573A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
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Abstract
The application provides a big dipper GNSS receiver lightning protection strategy method, sets out through the structure from big dipper GNSS receiver, designs big dipper GNSS receiver input interface and inner structure's lightning protection strategy method, includes: the lightning protection electricity processing of the power circuit of the Beidou/GNSS receiver, the lightning protection electricity processing of the network communication circuit of the Beidou/GNSS receiver and the lightning protection electricity processing of the antenna signal port of the Beidou/GNSS receiver realize comprehensive lightning protection and surge protection on the Beidou/GNSS receiver, effectively eliminate or reduce the influence of lightning, reduce the damage to the receiver and further ensure the continuous and stable normal work of the Beidou/GNSS receiver.
Description
Technical Field
The application belongs to the technical field of lightning protection, and particularly relates to a Beidou/GNSS receiver lightning protection strategy method, which solves the problem that the receiver is easily damaged by lightning, surge and the like under the complex environment of an ultrahigh voltage transformer substation.
Background
With the continuous development of the Beidou Satellite Navigation and positioning technology, a Satellite receiving antenna of a GNSS (Global Navigation Satellite System) is widely used. However, in order to better receive signals, the satellite receiving antenna needs to be placed in an open, through-view and unobstructed environment, which is generally the highest point of a building, and the receiver is very vulnerable to thunder, and thunder may be introduced into power interfaces, network interfaces, antenna interfaces and the like, so that the receiver is damaged.
In the prior art, an external feeder lightning arrester is directly added to eliminate or reduce damage of lightning to a receiver, referring to fig. 1, which is a lightning protection strategy schematic diagram of the receiver in the prior art, a cable of a satellite antenna firstly passes through the feeder lightning arrester 10 and then enters the receiver 20 through an antenna interface, wherein the feeder lightning arrester 10 is used for an antenna feeder of a radio communication station to suppress induced lightning waves from the antenna feeder so as to protect the receiver 20 from lightning strike. However, the existing schemes are lightning protection strategies aiming at a receiver of a reference station, and an ultra-high voltage transformer substation is different from the reference station, because the environment of the ultra-high voltage transformer substation is complex, more induction electricity and lightning are generated, and in addition, an interface for the receiver to easily input the induction electricity is not only an antenna interface, but also a power interface and a network interface.
Therefore, aiming at the complex environment of the ultra-high voltage transformer substation, how to realize comprehensive lightning protection and surge protection of the receiver, the influence of lightning is effectively eliminated or reduced, and the damage to the receiver is reduced, so that the Beidou/GNSS receiver can continuously and stably work normally, and the technical problem to be solved by technical personnel in the field is urgently needed.
Disclosure of Invention
The lightning protection strategy method for the Beidou/GNSS receiver is provided under the complex environment of the ultra-high voltage transformer substation, comprehensive lightning protection and surge protection of the Beidou/GNSS receiver is achieved, the influence of lightning is effectively eliminated or reduced, damage to the receiver is reduced, and therefore continuous and stable normal work of the Beidou/GNSS receiver is guaranteed.
In order to achieve the above object, the present application provides the following technical solutions:
a Beidou/GNSS receiver lightning protection strategy method comprises the following steps:
the commercial power passes through an Uninterruptible Power Supply (UPS) and then passes through a two-core power interface on a back panel of the Beidou/GNSS receiver, and lightning protection processing is carried out on the two-core power interface, so that lightning protection processing of a power circuit of the Beidou/GNSS receiver is realized;
the power supply passes through an internal power supply circuit of the Beidou/GNSS receiver, so that the lightning protection processing of the internal power supply circuit of the Beidou/GNSS receiver is realized, and induction lightning introduced from a power supply interface is inhibited;
connecting a network cable into a switch, and adding a network arrester before the network cable enters a network port of the Beidou/GNSS receiver to realize lightning protection electric processing of a Beidou/GNSS receiver network communication line and inhibit induction lightning introduced from a network port;
before an antenna signal enters the antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver, so that lightning protection processing of the antenna signal port of the Beidou/GNSS receiver is achieved, and induction lightning introduced from the antenna feeder interface is restrained.
Further, the commercial power passes through uninterrupted power supply UPS, passes through two core power source on big dipper/GNSS receiver backplate again two core power source carry out the lightning protection and handle, realize the lightning protection electricity of big dipper/GNSS receiver power supply line handles, specifically does:
the mains supply passes through the UPS and has voltage stabilization protection and high-voltage surge protection;
and then the power supply enters the Beidou/GNSS receiver through a self-recovery patch fuse F1, a piezoresistor RV1, an inductor L1, an inductor L2, a capacitor C1, a capacitor C2 and a transient suppression diode TVS1 at an interface panel to realize the lightning protection electric processing of the Beidou/GNSS receiver power supply circuit.
Further, the power passes through big dipper/GNSS receiver's internal power supply circuit, realizes big dipper/GNSS receiver internal power supply circuit's lightning protection electricity is handled, restraines the response thunder that introduces from power source, specifically does:
the self-recovery patch fuse F1 is used as a primary lightning protection circuit, under normal conditions, the self-recovery patch fuse F1 is in a low-resistance state, when the current is increased instantly, the temperature is increased suddenly, and the self-recovery patch fuse F1 is in a high-resistance protection state, so that high-temperature high-current protection is realized;
the voltage dependent resistor RV1 is used as a secondary lightning protection circuit, when the voltage is overlarge, the voltage dependent resistor RV1 responds within a microsecond level and acts with the inductor and the capacitor at the same time to restrain surge current;
the transient suppression diode TVS is used as a three-level lightning protection circuit, responds within picosecond level, clamps the voltage at 12V, realizes the lightning protection electric treatment of the internal power circuit of the Beidou/GNSS receiver and suppresses the induction lightning introduced from the power interface.
Further, the network cable is connected to the switch, and a network arrester is added before the network cable enters the network port of the Beidou/GNSS receiver, so that the lightning protection processing of the Beidou/GNSS receiver network communication line is realized, and an induction lightning introduced from the network port is suppressed, and the method specifically comprises the following steps:
connecting the network cable into an exchanger, connecting the grounding end of the exchanger with a lightning protection net of a grounding wire of the Beidou/GNSS receiver, and smearing anti-rust paint at the connection position to ensure the electric conduction;
and a network cable output by the switch is connected into a network interface of the Beidou/GNSS receiver through the network arrester, so that the lightning protection processing of a Beidou/GNSS receiver network communication line is realized, and an induction lightning introduced from the network interface is inhibited.
Further, before the antenna signal enters the antenna interface of the Beidou/GNSS receiver, the lightning arrester of the antenna signal port of the Beidou/GNSS receiver is added through the antenna interface of the Beidou/GNSS receiver, so that the lightning protection processing of the antenna signal port of the Beidou/GNSS receiver is realized, and the induction lightning introduced from the antenna feeder interface is suppressed, specifically:
before an antenna signal enters an antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver;
and the grounding end of the antenna feeder arrester is connected with a lightning protection net of a grounding wire of the Beidou/GNSS receiver, and the connection part is coated with antirust paint to ensure electric conduction, so that the lightning protection electric treatment of an antenna signal port of the Beidou/GNSS receiver is realized, and an induction lightning introduced from an antenna feeder interface is inhibited.
The application discloses Beidou/GNSS receiver lightning protection strategy method, which starts with the structure of the Beidou/GNSS receiver, designs the lightning protection strategy method of the Beidou/GNSS receiver input interface and the internal structure, and comprises the following steps: the lightning protection electricity processing of the power circuit of the Beidou/GNSS receiver, the lightning protection electricity processing of the network communication circuit of the Beidou/GNSS receiver and the lightning protection electricity processing of the antenna signal port of the Beidou/GNSS receiver realize comprehensive lightning protection and surge protection on the Beidou/GNSS receiver, effectively eliminate or reduce the influence of lightning, reduce the damage to the receiver and further ensure the continuous and stable normal work of the Beidou/GNSS receiver.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a lightning protection strategy for a receiver in the prior art;
fig. 2 is a schematic flow chart of a lightning protection strategy method for a Beidou/GNSS receiver according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a lightning protection circuit for a power interface according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a lightning protection circuit inside a power supply according to an embodiment of the present application.
Detailed Description
The application provides a pair of big dipper/GNSS receiver lightning protection strategy method, to under the super high voltage transformer substation complex environment, big dipper/GNSS receiver easily receives the thunder and lightning, and the surge etc. causes the problem of system damage, starts with through the structure from big dipper/GNSS receiver, designs big dipper/GNSS receiver input interface and inner structure's lightning protection strategy method, includes: the lightning protection processing method comprises the following steps of lightning protection processing of a power circuit of the Beidou/GNSS receiver, lightning protection processing of a network communication circuit of the Beidou/GNSS receiver and lightning protection processing of an antenna signal port of the Beidou/GNSS receiver.
The invention of the present application aims to: the Beidou/GNSS receiver is comprehensively protected from thunder and lightning and surge, thunder and lightning are effectively eliminated or reduced, damage to the receiver is reduced, and therefore the higher requirement of a user is met.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
Referring to fig. 2, a schematic flow chart of a lightning protection strategy method for a Beidou/GNSS receiver provided in the embodiment of the present application is shown, and the lightning protection strategy method specifically includes the following steps:
s201: the commercial Power passes through UPS (Uninterruptable Power System), uninterrupted Power source, through two core Power source on big dipper GNSS receiver backplate again two core Power source carry out the lightning protection and handle, realize the lightning protection electricity of big dipper GNSS receiver Power supply line is handled.
In this embodiment of the application, step S201 may specifically include:
step 1.1: the mains supply passes through the UPS and has voltage stabilization protection and high-voltage surge protection.
Step 1.2: and then the power supply enters the Beidou/GNSS receiver through a self-recovery patch fuse F1, a piezoresistor RV1, an inductor L1, an inductor L2, a capacitor C1, a capacitor C2 and a transient suppression diode TVS1 at an interface panel to realize the lightning protection electric processing of the Beidou/GNSS receiver power supply circuit.
It should be noted that, this step is a measure of lightning protection of the power interface, the commercial power passes through the UPS, when the load carried by the UPS is too large or the inverter in the power fails, i.e., when abnormality such as overvoltage or overcurrent occurs, the current is conducted and shunted in a very short time, and the UPS opens the bypass and is directly powered by the main power supply, so that abnormality occurs.
S202: the power supply passes through the internal power circuit of the Beidou/GNSS receiver, so that the lightning protection processing of the internal power circuit of the Beidou/GNSS receiver is realized, and the induction lightning introduced from the power interface is inhibited.
The primary lightning protection circuit is realized by adopting an F1 self-recovery patch fuse, the secondary lightning protection circuit is realized by adopting a piezoresistor, and the tertiary lightning protection circuit is realized by adopting a transient suppression diode TVS 1.
In this embodiment of the application, step S202 may specifically include:
step 2.1: the self-recovery patch fuse F1 is used as a primary lightning protection circuit, under the normal condition, the self-recovery patch fuse F1 is in a low-resistance state, when the current is increased instantly, the temperature is increased suddenly, and the self-recovery patch fuse F1 is in a high-resistance protection state, so that high-temperature high-current protection is realized.
Step 2.2: the voltage dependent resistor RV1 is used as a secondary lightning protection circuit, when the voltage is overlarge, the voltage dependent resistor RV1 responds within microsecond level, acts with the inductor and the capacitor at the same time, and inhibits surge current.
Step 2.3: the transient suppression diode TVS is used as a three-level lightning protection circuit, responds within picosecond level, clamps the voltage at 12V, realizes the lightning protection electric treatment of the internal power circuit of the Beidou/GNSS receiver and suppresses the induction lightning introduced from the power interface.
S203: and a network cable is connected into a switch, and a network arrester is added before the network cable enters a network port of the Beidou/GNSS receiver, so that the lightning protection electric treatment of a Beidou/GNSS receiver network communication line is realized, and an induction lightning introduced from a network port is inhibited.
In this embodiment of the application, step S203 may specifically include:
step 3.1: connecting the network cable into an exchanger, connecting the grounding end of the exchanger with a lightning protection net of a grounding wire of the Beidou/GNSS receiver, and smearing anti-rust paint at the connection position to ensure the electric conduction;
step 3.2: and a network cable output by the switch is connected into a network interface of the Beidou/GNSS receiver through the network arrester, so that the lightning protection processing of a Beidou/GNSS receiver network communication line is realized, and an induction lightning introduced from the network interface is inhibited.
S204: before an antenna signal enters the antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver, so that lightning protection processing of the antenna signal port of the Beidou/GNSS receiver is achieved, and induction lightning introduced from the antenna feeder interface is restrained.
In this embodiment of the application, step S203 may specifically include:
step 4.1: before an antenna signal enters an antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver;
step 4.2: and the grounding end of the antenna feeder arrester is connected with a lightning protection net of a grounding wire of the Beidou/GNSS receiver, and the connection part is coated with antirust paint to ensure electric conduction, so that the lightning protection electric treatment of an antenna signal port of the Beidou/GNSS receiver is realized, and an induction lightning introduced from an antenna feeder interface is inhibited.
The embodiment of the application has solved under the super high voltage transformer substation complex environment, big dipper GNSS receiver easily receives thunder and lightning, surge etc. and causes the problem of system damage, and this embodiment of the application sets forth through the structure from big dipper GNSS receiver, designs the lightning protection strategy of the power input interface of big dipper GNSS receiver and inner structure, handles based on several directions that probably arouse the thunder and lightning, mainly specifically can include: the lightning protection electricity processing of the power circuit of the Beidou/GNSS receiver, the lightning protection electricity processing of the network communication circuit of the Beidou/GNSS receiver and the lightning protection electricity processing of the antenna signal port of the Beidou/GNSS receiver realize comprehensive lightning protection and surge protection on the Beidou/GNSS receiver, effectively eliminate or reduce the influence of lightning, reduce the damage to the receiver and further ensure the continuous and stable normal work of the Beidou/GNSS receiver.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (5)
1. A Beidou/GNSS receiver lightning protection strategy method is characterized by comprising the following steps:
the commercial power passes through an Uninterruptible Power Supply (UPS) and then passes through a two-core power interface on a back panel of the Beidou/GNSS receiver, and lightning protection processing is carried out on the two-core power interface, so that lightning protection processing of a power circuit of the Beidou/GNSS receiver is realized;
the power supply passes through an internal power supply circuit of the Beidou/GNSS receiver, so that the lightning protection processing of the internal power supply circuit of the Beidou/GNSS receiver is realized, and induction lightning introduced from a power supply interface is inhibited;
connecting a network cable into a switch, and adding a network arrester before the network cable enters a network port of the Beidou/GNSS receiver to realize lightning protection electric processing of a Beidou/GNSS receiver network communication line and inhibit induction lightning introduced from a network port;
before an antenna signal enters the antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver, so that lightning protection processing of the antenna signal port of the Beidou/GNSS receiver is achieved, and induction lightning introduced from the antenna feeder interface is restrained.
2. The method according to claim 1, wherein the commercial power passes through an Uninterruptible Power Supply (UPS) and then passes through a two-core power interface on a back panel of the Beidou/GNSS receiver, and the two-core power interface is subjected to lightning protection processing to realize the lightning protection processing of the Beidou/GNSS receiver power circuit, and specifically comprises the following steps:
the mains supply passes through the UPS and has voltage stabilization protection and high-voltage surge protection;
and then the power supply enters the Beidou/GNSS receiver through a self-recovery patch fuse F1, a piezoresistor RV1, an inductor L1, an inductor L2, a capacitor C1, a capacitor C2 and a transient suppression diode TVS1 at an interface panel to realize the lightning protection electric processing of the Beidou/GNSS receiver power supply circuit.
3. The method according to claim 2, wherein the power supply passes through an internal power supply circuit of the Beidou/GNSS receiver, so that lightning protection processing of the internal power supply circuit of the Beidou/GNSS receiver is realized, induction lightning introduced from a power supply interface is suppressed, and the method specifically comprises the following steps:
the self-recovery patch fuse F1 is used as a primary lightning protection circuit, under normal conditions, the self-recovery patch fuse F1 is in a low-resistance state, when the current is increased instantly, the temperature is increased suddenly, and the self-recovery patch fuse F1 is in a high-resistance protection state, so that high-temperature high-current protection is realized;
the voltage dependent resistor RV1 is used as a secondary lightning protection circuit, when the voltage is overlarge, the voltage dependent resistor RV1 responds within a microsecond level and acts with the inductor and the capacitor at the same time to restrain surge current;
the transient suppression diode TVS is used as a three-level lightning protection circuit, responds within picosecond level, clamps the voltage at 12V, realizes the lightning protection electric treatment of the internal power circuit of the Beidou/GNSS receiver and suppresses the induction lightning introduced from the power interface.
4. The method according to claim 1, wherein the network cable is connected to the switch, and a network arrester is added before the network cable enters the network port of the Beidou/GNSS receiver, so that lightning protection processing of the Beidou/GNSS receiver network communication line is realized, and induction lightning introduced from the network port is suppressed, specifically:
connecting the network cable into an exchanger, connecting the grounding end of the exchanger with a lightning protection net of a grounding wire of the Beidou/GNSS receiver, and smearing anti-rust paint at the connection position to ensure the electric conduction;
and a network cable output by the switch is connected into a network interface of the Beidou/GNSS receiver through the network arrester, so that the lightning protection processing of a Beidou/GNSS receiver network communication line is realized, and an induction lightning introduced from the network interface is inhibited.
5. The method according to claim 1, wherein before the antenna signal enters the antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver, so that lightning protection processing of the antenna signal port of the Beidou/GNSS receiver is realized, and induction lightning introduced from the antenna feeder interface is suppressed, specifically:
before an antenna signal enters an antenna interface of the Beidou/GNSS receiver, an antenna feeder arrester is added to the antenna interface of the Beidou/GNSS receiver;
and the grounding end of the antenna feeder arrester is connected with a lightning protection net of a grounding wire of the Beidou/GNSS receiver, and the connection part is coated with antirust paint to ensure electric conduction, so that the lightning protection electric treatment of an antenna signal port of the Beidou/GNSS receiver is realized, and an induction lightning introduced from an antenna feeder interface is inhibited.
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| CN202010824437.2A CN111969573A (en) | 2020-08-17 | 2020-08-17 | Beidou/GNSS receiver lightning protection strategy method |
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| CN202010824437.2A CN111969573A (en) | 2020-08-17 | 2020-08-17 | Beidou/GNSS receiver lightning protection strategy method |
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Application publication date: 20201120 |