CN112835072A - Detection unit, satellite antenna in-place detection device and detection method - Google Patents
Detection unit, satellite antenna in-place detection device and detection method Download PDFInfo
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- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
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Abstract
The invention provides a detection unit, a satellite antenna in-place detection device and a detection method; according to the detection unit in the scheme, a satellite signal is accessed on the basis of a satellite signal access end, a voltage difference is generated when the satellite signal passes through a resistor, the voltage difference is amplified through an operational amplifier and then is respectively input into a first comparator and a second comparator so as to be respectively compared with the voltage of a first preset voltage source and the voltage of a second preset voltage source, and whether the satellite antenna is normally in place or not is determined according to a comparison result. In addition, according to the detection method in the scheme of the application, on the basis of the detection unit and the satellite antenna in-place detection device, whether the satellite signals are in place or not is judged firstly based on the voltage, and then whether the satellite signals are normal or not is judged based on the satellite signals obtained through synchronization, so that comprehensive and efficient satellite synchronization detection is realized.
Description
Technical Field
The invention relates to the technical field of satellite detection, in particular to a detection unit, a satellite antenna in-position detection device and a detection method.
Background
The time synchronization is needed in the communication process of the base station, and the specific time synchronization mainly needs to realize the unification of time, namely all communications are based on the same time standard; as in the prior mobile phone, the time needs to be automatically set after the mobile phone is started; the current mobile phone automatically acquires time after being started, and communication faults are caused if the time is not uniform.
The time synchronization mode generally includes satellite synchronization, IEEE1588 (all referred to as the precision clock synchronization protocol standard of the network measurement and control system) synchronization, 1PPS (pulse per second) synchronization, and the like; the current satellite synchronization mode is mainly realized by a Chinese Beidou satellite System, a GPS (Global Positioning System), a Galileo satellite System and the like; because the satellite synchronization has small dependence on a communication network, the satellite synchronization can be realized directly by acquiring satellite signals, and the satellite synchronization can simultaneously acquire geographic coordinate information and mark the geographic position of the current base station, so the method is most widely applied.
However, there are some problems with the way of satellite synchronization:
in the satellite synchronization mode, a satellite receiver is required to be arranged on the base station equipment, and a satellite antenna is externally connected. At present, most satellite antennas used in a base station platform are active antennas, so that satellite synchronization cannot be performed for many reasons, specifically, satellite signals can be turned off; for example, the base station satellite signal receiving antenna can be destroyed (unplugged), which also makes satellite synchronization impossible; another satellite interference signal can also be simulated; the GPS receiver of the base station is forced into the analog satellite system, thereby interfering with the normal performance of time synchronization.
However, a satellite synchronization security detection system is still absent in the current base station communication system, and whether the satellite antenna is in place cannot be identified, for example, in the conventional method, GPS antenna in-place detection is not present, so if the system is configured in a GPS synchronization manner, the GPS manner is used for synchronization, and at this time, if the GPS antenna is not connected, the base station cannot realize synchronization and cannot operate. The system can always circularly detect the GPS synchronous signal, and finally the base station can not work; in addition, a satellite antenna end fault cannot be detected, because the GPS antenna is usually an active antenna, when a short-circuit fault occurs during use, if another wire is plugged in and out in a hot-line manner or the antenna itself is plugged in and out, a circuit device of a GPS receiving part may be damaged, for example, an inductor or a GPS receiver is burnt in an overcurrent manner, and the fault detection cannot be realized in the conventional method.
Disclosure of Invention
In view of the above, the present invention provides a detecting unit, a satellite antenna on-position detecting device and a detecting method to overcome the defects in the prior art.
The invention provides the following technical scheme:
an embodiment of the present invention provides a detection unit, including: the satellite signal input end, the satellite signal output end, the resistor, the operational amplifier, the first comparator and the second comparator are connected in series; wherein the content of the first and second substances,
the satellite signal access end is connected with one end of the resistor, and the other end of the resistor is connected with the satellite signal output end;
the resistor is connected with the operational amplifier in parallel;
the first comparator and the second comparator are both provided with two input ends;
the output end of the operational amplifier is connected with the first input end of the first comparator; the second input end of the first comparator is connected with a first preset voltage source;
the output end of the operational amplifier is connected with the first input end of the second comparator; a second input end of the second comparator is connected with a second preset voltage source; the first preset voltage source and the second preset voltage source have different voltages.
In a specific embodiment, the resistor, the operational amplifier, the first comparator and the second comparator are all in a chip package structure.
The embodiment of the invention also provides a satellite antenna in-place detection device, which comprises a processing unit, a satellite antenna unit and the detection unit; the satellite antenna unit is connected with the satellite signal access end in the detection unit;
the processing unit is connected with the output end of the first comparator in the detection unit; the processing unit is also connected with the output end of the second comparator.
In a specific embodiment, the method further comprises the following steps: and the switch component is used for controlling the on-off of the satellite antenna unit.
In a specific embodiment, the switch assembly is connected to the processing unit.
The embodiment of the invention also provides a satellite synchronous detection method, which is applied to the satellite antenna in-place detection device and comprises the following steps:
acquiring a detection signal output by the detection unit through the processing unit;
if the satellite antenna unit is determined to be in place based on the detection signal, satellite information synchronously obtained by the satellite antenna unit is obtained through the processing unit;
and judging whether the synchronization is normal or not based on the satellite information.
In a specific embodiment, the voltage of the first preset voltage source is greater than the voltage of the second preset voltage source;
the detection signal includes: a first signal output by an output terminal of the first comparator and a second signal output by an output terminal of the second comparator;
if the first signal and the second signal are both low level signals, determining that the satellite antenna unit is not in place;
if the first signal and the second signal are both high-level signals, determining that the satellite antenna unit is in a short-circuit state;
and if the first signal is a low-level signal and the second signal is a high-level signal, determining that the satellite antenna unit is in place.
In a specific embodiment, the method further comprises the following steps:
and if the satellite antenna unit is determined to be in the short circuit state, alarming.
In a specific embodiment, the processing unit is connected to a core network;
the satellite information includes: time information, geographical coordinate information, satellite system information;
the "determining whether synchronization is normal based on the satellite information" includes:
judging whether the geographic coordinate information and the satellite system information meet preset requirements or not;
if the judgment results are that the time information and the time information of the core network are consistent, judging whether the time information and the time information of the core network meet the preset requirements;
and if the judgment result is consistent, determining that the synchronization is normal.
In a specific embodiment, the method further comprises the following steps:
and if the geographic coordinate information or the satellite system information does not meet the preset requirement, or the time information is inconsistent with the time information of the core network, determining that the synchronization is abnormal.
The embodiment of the invention has the following advantages:
the embodiment of the invention provides a detection unit, a satellite antenna in-place detection device and a detection method; according to the detection unit in the scheme, a satellite signal is accessed to the satellite signal access end based on the satellite signal access end, a voltage difference is generated when the satellite signal passes through the resistor, the voltage difference is amplified through the operational amplifier and then is respectively input into the first comparator and the second comparator so as to be respectively compared with the voltage of the first preset voltage source and the voltage of the second preset voltage source, and whether the satellite antenna is normally in place or not is determined according to the comparison result. In addition, according to the detection method in the scheme of the application, on the basis of the detection unit and the satellite antenna on-position detection device, whether the satellite antenna is on position is judged based on the voltage, and whether the satellite antenna is in normal synchronization is judged based on the satellite signal obtained by synchronization, so that comprehensive and efficient satellite synchronization detection is realized.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram showing a frame structure of a detecting unit;
FIG. 2 is a schematic diagram showing a part of a circuit configuration of a detecting unit;
FIG. 3 is a schematic diagram of another circuit structure of a detecting unit;
FIG. 4 is a schematic diagram showing a frame structure of an in-place detection device for a satellite antenna;
fig. 5 shows a schematic flow diagram of a detection method.
Description of the main element symbols:
1-satellite signal access end; 2-satellite signal output; 3-resistance;
4-an operational amplifier; 5-a first comparator; 6-a second comparator;
7-a processing unit; 8-satellite antenna unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the invention and are not to be construed as limiting the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any combination of the two. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, 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 specifically defined otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
the satellite signal access end 1 is connected with one end of the resistor 3, and the other end of the resistor 3 is connected with the satellite signal output end 2;
the resistor 3 is connected with the operational amplifier 4 in parallel;
the first comparator 5 and the second comparator 6 are both provided with two input ends;
the output end of the operational amplifier 4 is connected with the first input end of the first comparator 5; a second input end of the first comparator 5 is connected with a first preset voltage source;
the output end of the operational amplifier 4 is connected with the first input end of the second comparator 6; and a second input end of the second comparator 6 is connected with a second preset voltage source. Specifically, the first preset voltage source and the second preset voltage source have different voltages.
Further, the first preset voltage source and the second preset voltage source are obtained by respectively connecting two initial voltage sources with the same voltage in series with voltage dividing resistors 3 with different sizes to divide the voltage.
Specifically, referring to fig. 2 and 3, when the GPS antenna is connected, a current flows through the resistor 3 (e.g., R2005 IN fig. 2) at the satellite signal connection terminal 1 (e.g., GPS _ POWER _ IN fig. 2 and 3), and the current is multiplied by the resistor 3 to obtain a voltage, so that a voltage difference exists between the GPS _ POWER _ IN fig. 2 and the satellite signal output terminal 2 (e.g., GPS _ POWER _ OUT IN fig. 2 and 3).
Specifically, there may be 2 operational amplifiers 4, which amplify the same magnification.
Specifically, the voltage difference is amplified by 10 times by an operational amplifier 4 (for example, R2017 and R2018 in fig. 3, where the resistor 3 of R2017 is 10K ohms and the resistor 3 of R2018 is 100K ohms) shown in fig. 3, and a GPS _ control _ POWER signal is obtained after amplification by R2017 and R2018, and flows to a comparator u2003. the GPS _ ALARM is obtained after comparison with a first preset voltage source.
Meanwhile, the voltage difference is amplified by the amplifying unit a of the U2002 to obtain a GPS _ control _ POWER signal, and the GPS _ control _ POWER signal flows to the comparing unit (i.e., the right part of the U2002) and is compared with the second preset voltage source to obtain a GPS _ ON signal.
In one specific embodiment, the current of the GPS antenna is typically 10-20mA at 5V; for example, resistor 3 (e.g., R2005 in fig. 2) has a magnitude of 10 ohms; in this case, the voltage difference generated by the satellite signal flowing through the resistor 3 is 100-200 mV; the amplification factor of the operational amplifier 4 is, for example, 10 times, and the voltage range for obtaining the GPS _ control _ POWER signal is 1 to 2V.
In this case, the GPS _ control _ POWER is compared with a voltage of 0.43V obtained by dividing the voltage by the resistor 3 (by a comparator), and the result of the comparison is a GPS _ ON signal. The GPS _ Consume _ POWER is compared with a voltage of 2.86V obtained by dividing the voltage by the resistor 3 (realized by a comparator), and the result of comparison is a signal of the GPS _ ALARM.
Thus, depending on the result of the comparison, there are several cases:
in case 1, the GPS antenna is not located, the current flowing through the series 10R resistor 3 is 0A, and GPS _ control _ POWER is 0V; less than 0.43V, GPS _ ON outputs low. The GPS _ ALARM outputs a low level.
In case 2, the GPS antenna is normally in position, for example, when the current flowing through the series 10R resistor 3 is 12mA (in the normal range of 10-20 mA), and GPS _ control _ POWER is 1.2V, which is greater than 0.43V, the GPS _ ON outputs a high level; the GPS _ constant _ POWER is 1.2V smaller than 2.86V, and the GPS _ ALARM outputs a low level.
In case 3, when the GPS antenna is in place but short-circuited, the current flowing through the series 10R resistor 3 is greater than 30mA (which may exceed the normal range of 10-20 mA), and GPS _ control _ POWER is greater than 3V and greater than 0.43V, then GPS _ ON outputs a high level; the GPS _ Consume _ POWER is more than 3V and also more than 2.86V, and the GPS _ ALARM outputs a high level.
In a specific embodiment, the resistor 3, the operational amplifier 4, the first comparator 5, and the second comparator 6 are all in a chip package structure. In addition, in a general process, the resistor 3, the arithmetic unit, the comparator and the like are all connected by adopting a welding mode, but the welding mode has higher parasitic capacitance, so that the detection precision is influenced, and in order to ensure the detection precision, the resistor 3, the comparator and the operational amplifier 4 are all in a chip packaging structure, so that the parasitic capacitance, the parasitic inductance and the deviation caused by the welding process are reduced.
Example 2
The embodiment 2 of the invention also discloses an in-place detection device for the satellite antenna, which comprises a processing unit 7, a satellite antenna unit 8 and the detection unit in the embodiment 1 as shown in fig. 4; the satellite antenna unit 8 is connected to the satellite signal access terminal 1 in the detection unit;
the processing unit 7 is connected with the output end of the first comparator 5 in the detection unit; the processing unit 7 is also connected with the output end of the second comparator 6;
specifically, the satellite antenna unit 8 is configured to receive satellite signals, and after receiving the satellite signals, the satellite antenna unit 8 delivers the received satellite signals to the satellite signal access terminal 1 so as to perform the processing described in embodiment 1 in the detection unit, and after obtaining the GPS _ ON and the GPS _ ALARM, the GPS _ ON and the GPS _ ALARM signals are both transmitted to the processing unit 7 so as to be processed by the processing unit 7.
The processing unit 7 may include a CPU (central processing unit), a memory, a network module connected to an external core network, and the like, and the satellite antenna unit 8 may further include a receiving unit for receiving satellite signals.
In a specific embodiment, the method further comprises the following steps: the switch component is used for controlling the on-off of the satellite antenna unit 8; further, the switch assembly is connected to the processing unit 7.
Specifically, if the condition 3 occurs, that is, the GPS antenna is determined to be short-circuited, the processing unit 7 outputs a high-level control GP _ POWER _ CTR signal to drive the Q2002 to be turned off, remove the short-circuited GPS antenna, and send an alarm signal inside the system.
In a specific embodiment, if the voltage of the first preset voltage source is less than the voltage of the second preset voltage source; the output end of the second comparator 6 is connected with the switch component.
Specifically, if the voltage of the first preset voltage source is lower than the voltage of the second preset voltage source, as described above as an example, the output terminal of the second comparator 6 outputs GPS _ ALARM, in this case, when the GPS antenna short circuit occurs, the GPS _ ALARM is a high level signal, and the switch component is controlled by the high level signal to disconnect the power supply of the satellite antenna unit 8. And functions to protect the satellite antenna unit 8.
Further, as shown in fig. 2, the switch assembly includes: a triode (Q2001 shown in FIG. 2), a MOS transistor (Q2002 shown in FIG. 2); the base electrode of the triode is connected with the output end of the second comparator 6, the emitting electrode of the triode is grounded, the collector electrode of the triode is connected with the grid electrode of the MOS tube, the drain electrode of the MOS tube is connected with the resistor 3, and the source electrode of the MOS tube is grounded.
In addition, the MOS tube is an N-type MOS tube.
Specifically, a switching tube is formed by the triode and the MOS tube, the MOS tube is disconnected when a high-point flat signal is generated, and then the power supply of the satellite antenna unit 8 is disconnected, so that the effects of interrupting short circuit and protecting the satellite antenna unit 8 are achieved.
Example 3
step S301, acquiring a detection signal output by the detection unit through the processing unit;
specifically, the voltage of the first preset voltage source is greater than the voltage of the second preset voltage source;
the detection signal includes: a first signal output by an output terminal of the first comparator and a second signal output by an output terminal of the second comparator;
if the first signal and the second signal are both low level signals, determining that the satellite antenna unit is not in place;
if the first signal and the second signal are both high-level signals, determining that the satellite antenna unit is in a short-circuit state; in addition, if the satellite antenna unit is determined to be in the short circuit state, an alarm is given.
And if the first signal is a low-level signal and the second signal is a high-level signal, determining that the satellite antenna unit is in place.
Still taking the above as an example for explanation, the first signal is a GPS _ ALARM signal, the second signal is a GPS _ ON signal, and both signals are GPIO signals; further, a GPS _ POWER _ CTR output by the processing unit is included: for GPIO signal, when short circuit of GPS antenna is detected, high level is output.
Firstly, a base station system where a satellite antenna is located is initialized after being powered on to work, a GPS _ POWER _ CTR is set to be 0, and a satellite antenna POWER supply circuit is started. And secondly, reading the GPS _ ON and GPS _ ALARM state values detected by the hardware circuit system. Specifically, there are several cases:
In case 2, GPS _ ON is 1 (i.e., a high signal), and GPS _ ALARM is 0 (i.e., a low signal). And the base station system starts GPS synchronization, reads Satellite _ TIME, Satellite _ coordinate and Satellite _ NAME information and enters a Satellite state judgment subprogram.
Step S302, if the satellite antenna unit is determined to be in place based on the detection signal, satellite information synchronously obtained by the satellite antenna unit is obtained through the processing unit;
specifically, the processing unit periodically acquires satellite information obtained by synchronizing the satellite antenna units. When the base station operates, the satellite is synchronized once at intervals according to different operator requirements of different base stations, and the synchronization state is judged. This time interval is typically in the range of a few seconds to a few tens of seconds.
And step S303, judging whether the synchronization is normal or not based on the satellite information.
Specifically, the processing unit is connected to a core network;
the satellite information includes: time information, geographical coordinate information, satellite system information;
the "determining whether synchronization is normal based on the satellite information" includes:
judging whether the geographic coordinate information and the satellite system information meet preset requirements or not;
if the judgment results are that the time information and the time information of the core network are consistent, judging whether the time information and the time information of the core network meet the preset requirements;
and if the judgment result is consistent, determining that the synchronization is normal.
And if the geographic coordinate information or the satellite system information does not meet the preset requirement, or the time information is inconsistent with the time information of the core network, determining that the synchronization is abnormal.
The specific TIME information, namely Satellite _ TIME, is the TIME information currently acquired by the Satellite system; the geographic coordinate information, namely Satellite-coordinate, is the geographic coordinate information currently acquired through a Satellite system; as for the Satellite system information, namely Satellite _ NAME, is the Satellite system information currently synchronized to. Such as the BeiDou Navigation Satellite System (BDS) System, the GPS (Global Positioning System) System, the galileo System glonass (Global Positioning System) System.
Specifically, the determining whether synchronization is normal includes: entering a satellite state judgment subroutine:
firstly, reading Satellite _ TIME, Satellite _ coordinate and Satellite _ NAME information, and judging whether the Satellite _ coordinate and Satellite _ NAME information meet requirements or not according to the position of each operator for actually deploying the base station; and comparing the Satellite _ TIME information with the core network information to determine whether the Satellite _ TIME information is reasonably consistent, and if the Satellite _ TIME information is reasonably consistent, indicating that the base station is synchronized to the Satellite and the synchronization state is accurate. At this time, Satellite _ STATE is 1.
As analyzed above, a satellite system anomaly includes a shutdown or intentional tampering with satellite system information. Shutting down or intentionally tampering with the Satellite system by simulating Satellite signals by a signal generator or the like imposes interference or the like will result in a change in the Satellite _ TIME, Satellite _ coordinate, Satellite _ NAME information. After the base station is deployed, the Satellite _ coordinate, that is, the coordinate position, usually does not change. Therefore, if the Satellite _ coordinate and the Satellite _ NAME information read twice before and after are different, the Satellite system is considered to be abnormal. At this point, a satellite synchronization security alert is output and the base station suspends service.
The scheme realizes the satellite antenna state detection in a simpler mode, and the satellite antenna state is a main factor causing the satellite synchronization problem. The correctness of the satellite connection path is first determined from the signal link point of view. In addition, the controller and the memory which are inherent in the base station are fully utilized to realize the satellite synchronization safety judgment. And on the basis of correct satellite link, whether the satellite synchronization state is safe is judged by comparing the satellite topology data obtained after synchronization.
The embodiment of the invention provides a detection unit, a satellite antenna in-place detection device and a detection method; according to the detection unit in the scheme, a satellite signal is accessed on the basis of the satellite signal access end 1, a voltage difference is generated when the satellite signal passes through the resistor 3, the voltage difference is amplified through the operational amplifier 4 and then is respectively input into the first comparator 5 and the second comparator 6 to be respectively compared with the voltage of the first preset voltage source and the voltage of the second preset voltage source, and whether the satellite antenna is normally in place or not is determined according to the comparison result. In addition, according to the detection method in the scheme of the application, on the basis of the detection unit and the satellite antenna in-place detection device, whether the satellite signals are in place or not is judged firstly based on the voltage, and then whether the satellite signals are normal or not is judged based on the satellite signals obtained through synchronization, so that comprehensive and efficient satellite synchronization detection is realized.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A detection unit, comprising: the satellite signal receiving end, the satellite signal output end, the resistor, the operational amplifier, the first comparator and the second comparator are connected in series; wherein the content of the first and second substances,
the satellite signal access end is connected with one end of the resistor, and the other end of the resistor is connected with the satellite signal output end;
the resistor is connected with the operational amplifier in parallel;
the first comparator and the second comparator are both provided with two input ends;
the output end of the operational amplifier is connected with the first input end of the first comparator; the second input end of the first comparator is connected with a first preset voltage source;
the output end of the operational amplifier is connected with the first input end of the second comparator; a second input end of the second comparator is connected with a second preset voltage source; the first preset voltage source and the second preset voltage source have different voltages.
2. The cell of claim 1, wherein the resistor, the operational amplifier, the first comparator, and the second comparator are all in a chip-on-package configuration.
3. An in-place detection device for a satellite antenna, which is characterized by comprising a processing unit, a satellite antenna unit and a detection unit of any one of claims 1-2; the satellite antenna unit is connected with the satellite signal access end in the detection unit;
the processing unit is connected with the output end of the first comparator in the detection unit; the processing unit is also connected with the output end of the second comparator.
4. The apparatus of claim 3, further comprising: and the switch component is used for controlling the on-off of the satellite antenna unit.
5. The apparatus of claim 4, wherein the switch assembly is connected to the processing unit.
6. A detection method is applied to the satellite antenna in-place detection device of any one of claims 3-5, and the method comprises the following steps:
acquiring a detection signal output by the detection unit through the processing unit;
if the satellite antenna unit is determined to be in place based on the detection signal, satellite information synchronously obtained by the satellite antenna unit is obtained through the processing unit;
and judging whether the synchronization is normal or not based on the satellite information.
7. The method of claim 6, wherein the voltage of the first predetermined voltage source is greater than the voltage of the second predetermined voltage source;
the detection signal includes: a first signal output by an output terminal of the first comparator and a second signal output by an output terminal of the second comparator;
if the first signal and the second signal are both low-level signals, determining that the satellite antenna unit is not in place;
if the first signal and the second signal are both high-level signals, determining that the satellite antenna unit is in a short-circuit state;
and if the first signal is a low-level signal and the second signal is a high-level signal, determining that the satellite antenna unit is in place.
8. The method of claim 7, further comprising:
and if the satellite antenna unit is determined to be in the short circuit state, alarming.
9. The method of claim 6, wherein the processing unit is connected to a core network;
the satellite information includes: time information, geographic coordinate information, and satellite system information;
the "determining whether synchronization is normal based on the satellite information" includes:
judging whether the geographic coordinate information and the satellite system information meet preset requirements or not;
if the judgment results are that the time information and the time information of the core network are consistent, judging whether the time information and the time information of the core network meet the preset requirements;
and if the judgment result is consistent, determining that the synchronization is normal.
10. The method of claim 9, further comprising:
and if the geographic coordinate information or the satellite system information does not meet the preset requirement, or the time information is inconsistent with the time information of the core network, determining that the synchronization is abnormal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110283030.8A CN112835072A (en) | 2021-03-16 | 2021-03-16 | Detection unit, satellite antenna in-place detection device and detection method |
Applications Claiming Priority (1)
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| CN204129226U (en) * | 2014-09-19 | 2015-01-28 | 成都国星通信有限公司 | A kind of antenna automatic identification circuit |
| KR101640102B1 (en) * | 2015-04-30 | 2016-07-18 | 한국단자공업 주식회사 | Detecting system for receiving interruption of gps through extracting voltage level of frequency signal |
| CN205656303U (en) * | 2016-05-26 | 2016-10-19 | 四川九洲空管科技有限责任公司 | Antenna detection device based on airborne collision avoidance system |
| CN107132550A (en) * | 2017-06-23 | 2017-09-05 | 天津七六四通信导航技术有限公司 | A kind of detection circuit and detection method applied to onboard satellite antenna |
| CN214669616U (en) * | 2021-03-16 | 2021-11-09 | 大连市共进科技有限公司 | Detection unit and satellite antenna in-place detection device |
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| CN204129226U (en) * | 2014-09-19 | 2015-01-28 | 成都国星通信有限公司 | A kind of antenna automatic identification circuit |
| KR101640102B1 (en) * | 2015-04-30 | 2016-07-18 | 한국단자공업 주식회사 | Detecting system for receiving interruption of gps through extracting voltage level of frequency signal |
| CN205656303U (en) * | 2016-05-26 | 2016-10-19 | 四川九洲空管科技有限责任公司 | Antenna detection device based on airborne collision avoidance system |
| CN107132550A (en) * | 2017-06-23 | 2017-09-05 | 天津七六四通信导航技术有限公司 | A kind of detection circuit and detection method applied to onboard satellite antenna |
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