KR101270923B1 - System for monitoring landslide, and positioning sensor used thereto - Google Patents

Abstract

The present invention arranges a plurality of satellite-based position sensors on various slopes such as hill slopes, cut slopes and fill lands, collects RF sampling signals from each position sensor in a reference station receiver, and processes the navigation data of each position sensor through an integrated process. By detecting and analyzing, the displacement of the position sensor can be detected in real time. In particular, by simplifying the configuration of the position sensor, it is possible to reduce the equipment and operating costs. A situation monitoring system capable of reducing the risk, which is disposed on an inclined surface, receives at least one satellite signal from a satellite and extracts and transmits an RF sampling signal; And a reference station receiver which receives the RF sampling signal transmitted from the position sensor, extracts navigation data of each position sensor, and analyzes whether displacement of the inclined surface occurs. It includes, wherein the position sensor comprises a sensor network capable of communicating by wire or wireless to transmit the RF sampling signal to the reference station receiver through the network communication.

Description

Situation monitoring system and position sensor used for it {SYSTEM FOR MONITORING LANDSLIDE, AND POSITIONING SENSOR USED THERETO}

The present invention relates to a situation monitoring system and method and a position sensor used therein, and more particularly, to arrange a plurality of satellite-based position sensors on various inclined surfaces such as hill slopes, cut slopes and fill lands, and to locate each position in a reference station receiver. By collecting RF sampling signals from sensors and extracting and analyzing the navigation data of each position sensor through integrated processing, it is possible to detect the occurrence of displacement of the position sensor in real time, and in particular, reduce the installation and operation costs by simplifying the configuration of the position sensor. The present invention relates to a situation monitoring system and method that can reduce the financial burden on sensor recovery even in the event of an equipment loss or loss, and a position sensor used therein.

In general, inclined surfaces, particularly large inclined surfaces having unstable elements, there is a risk of collapse, so it is necessary to properly maintain the inclined surface, and various protective structures and countermeasure structures are currently implemented in maintaining the inclined surface.

However, in the maintenance and management of slopes, unexpected events such as slope collapse occur due to ground weathering, vegetation transition, and deterioration of protective and countermeasure structures, which have various causes and uncertainty. It is difficult to predict the exact timing of an occurrence. Therefore, for various slopes, professional management personnel always monitor the slope status and accumulate data to predict the slope collapse to some extent, but this is also due to the limitation of manpower input and the difficulty of accurate timing prediction. Safety management is not achieved.

Recently, in order to monitor such slope collapse, there have been cases in which a system for monitoring a situation such as slope collapse has been established by installing global navigation satellite system (GNSS) receivers on a slope and thereby monitoring displacement of each GNSS receiver. .

1 shows the internal module structure of such a GNSS receiver.

Referring to FIG. 1, an RF unit 12 which receives a satellite signal detected by the antenna 11 and converts the satellite signal into an intermediate frequency (IF) signal, and the intermediate frequency signal converted by the RF unit 12 are based on. A base band unit 13 for lowering the bandwidth and extracting navigation information (location information, time information), a processor unit 14 and a memory unit 15 for processing and storing the extracted navigation information, and extracted navigation information It is configured to include a communication unit 16 for transmitting to the outside.

The RF unit 12 generates an intermediate frequency signal through signal processing through hardware, such as an amplifier, a mixer, and an A / D converter, and the base band unit 13 processes the intermediate frequency signal through a software operation for navigation. Information can be extracted.

More specifically, the RF unit 12 mixes an amplifier for amplifying a satellite signal input from the antenna 11 and an appropriate frequency signal to the satellite signal output from the amplifier to down-convert the satellite signal to an intermediate frequency band. A mixer, an amplifier for amplifying an intermediate frequency satellite signal output from the mixer, and an A / D converter for converting the intermediate frequency satellite signal into a digital signal to generate a digital satellite signal.

In general, the A / D conversion unit in the RF unit 12 digitally samples an analog intermediate frequency signal at a frequency four times or more of the corresponding frequency.

However, in order to extract the navigation information by processing the RF sampling signal in real time, the base band unit 13 must satisfy a data transmission rate of at least 32 Mbps, and a high speed signal correlation operation is required.

As described above, the existing GNSS receiver has an excessively large amount of data to be calculated by the baseband unit 13 and requires a high-speed calculation to obtain real-time location information, which causes a problem that the load added to signal processing becomes very large. In addition, in order to implement the baseband unit 13 in the GNSS receiver, it may cause an increase in manufacturing cost and an increase in power used by the replacement with a high performance processor.

In particular, since existing GNSS receivers are expensive and have a limited data transmission range, it is difficult to construct a system that can sufficiently cover the slope, and in fact, it is almost impossible to recover the GNSS receivers that have been monitored in case of an emergency. Facilities and operations are hardly achieved.

The present invention has been made to solve the above problems, the object of which is to arrange a plurality of satellite-based position sensors on various slopes such as hill slope, cut slope, land, etc. and RF from each position sensor in the reference station receiver It is to provide a situation monitoring system and method and a position sensor that can be used to detect the occurrence of displacement of the position sensor in real time by collecting and sampling the sampling signals and extracting and analyzing navigation data of each position sensor through an integrated process.

In particular, by simplifying the configuration of the position sensor, it is possible to reduce equipment and operation costs, and provide a situation monitoring system and method and a position sensor used for reducing the financial burden of sensor recovery in the event of an equipment loss or loss. It is.

In addition, the reference station receiver transmits a triggering signal to each position sensor, and each position sensor samples and temporarily stores an RF signal for a predetermined time according to the triggering signal, and then transmits an RF sampling signal to the reference station receiver through network communication. The present invention provides a situation monitoring system and method which can prevent communication overload of a position sensor and a sensor network and calculate accurate and reliable position displacement, and a position sensor used therein.

According to one aspect of the invention, disposed on the inclined surface, at least one position sensor for receiving a satellite signal from the satellite to extract and transmit the RF sampling signal; And a reference station receiver which receives the RF sampling signal transmitted from the position sensor, extracts navigation data of each position sensor, and analyzes whether displacement of the inclined surface occurs. It includes, wherein the position sensors provide a landslide monitoring system comprising a sensor network capable of communicating by wire or wireless to transmit the RF sampling signal to the reference station receiver through the network communication.

Preferably, the position sensor, the antenna; An RF unit which receives the satellite signal detected by the antenna and converts the satellite signal into an intermediate frequency signal; A sampling signal processing unit which generates an RF sampling signal by communicating the intermediate frequency signal converted by the RF unit to a baseband and generates a communication process; A node communication unit for transmitting the RF sampling signal to another location sensor or gateway; And a memory unit for temporarily storing the RF sampling signal transmitted from another position sensor and managing path information for network transmission of the RF sampling signal. Characterized in that it comprises a.

Preferably, the reference station receiver, the signal communication unit for receiving the RF sampling signal of each position sensor through a gateway; A baseband processor configured to generate navigation data by integrating an RF sampling signal collected from the signal communicator; And a data analyzer for analyzing the navigation data of the baseband processor to determine whether displacement of each position sensor occurs. Characterized in that it comprises a.

Preferably, the configuration of the sensor network is characterized in that connected by wired Ethernet or wireless Wi-Fi.

Preferably, the position sensor is characterized in that it further comprises a power supply for operating power supply.

Preferably, the reference station receiver comprises: a triggering signal generator for generating a triggering signal for a sampling reference time of each position sensor; Further, the position sensor receiving the triggering signal is characterized in that for sampling the RF signal for a predetermined time according to the triggering signal and temporarily stored, and then transmits the RF sampling signal to the reference station receiver through network communication.

On the other hand, according to another aspect of the present invention, (a) at the one or more position sensors installed on the inclined surface receiving a satellite signal related to the current position from the satellite to extract the RF sampling signals from the reference station receiver in the sensor network; (b) the reference station receiver extracting navigation data by integrating the RF sampling signal of each position sensor; (c) the reference station receiver analyzing the navigation data of each position sensor to calculate a displacement of each position sensor; And (d) when the displacement occurrence of the specific position sensor is detected, the reference station receiver proceeds with the set situation occurrence processing; It provides a situation monitoring method comprising a.

Preferably, the position sensors comprise a sensor network capable of communicating by wire or wirelessly and transmitting the RF sampling signal to the reference station receiver through network communication.

Preferably, the configuration of the sensor network is characterized in that connected by wired Ethernet or wireless Wi-Fi.

Preferably, the reference station receiver generates and transmits a triggering signal for each sampling reference time of each position sensor to each position sensor, and the position sensor receiving the triggering signal samples the RF signal for a predetermined time according to the triggering signal. After storing temporarily, the RF sampling signal is transmitted to the reference station receiver through network communication.

On the other hand, according to another aspect of the invention, the antenna; An RF unit which receives the satellite signal detected by the antenna and converts the satellite signal into an intermediate frequency signal; A sampling signal processing unit which generates an RF sampling signal by communicating the intermediate frequency signal converted by the RF unit to a baseband and generates a communication process; A node communication unit for transmitting the RF sampling signal to another location sensor or gateway; And a memory unit for temporarily storing the RF sampling signal transmitted from another position sensor and managing path information for network transmission of the RF sampling signal. It includes, and comprises a sensor network capable of communicating with other position sensors disposed on the inclined surface by wire or wireless to provide a position sensor, characterized in that for transmitting the RF sampling signal to the reference station receiver through the network communication.

Preferably, the position sensor is characterized in that it further comprises a power supply for operating power supply.

Preferably, the position sensor receives the triggering signal transmitted from the reference station receiver, and stores and temporarily stores the RF signal for a predetermined time according to the triggering signal, and transmits the RF sampling signal to the reference station receiver through network communication. It is characterized by.

According to the present invention, a plurality of satellite-based position sensors are disposed on various slopes such as hill slopes, cut slopes, and fillets, and RF sampling signals are collected from respective position sensors in a reference station receiver. By extracting and analyzing the navigation data, it is possible to detect the occurrence of displacement of the position sensor in real time.

In addition, by simplifying the configuration of the position sensor, it is possible to reduce the installation and operation costs, and also to reduce the financial burden of the sensor recovery even in the event of equipment loss or loss.

In addition, it is possible to miniaturize by simplifying the configuration of the position sensor, and in particular, it is advantageous in long-term operation because it is possible to lower power by not performing calculation for navigation data calculation.

In addition, by generating and distributing a triggering signal, which is a reference time required for RF sampling of each position sensor, the reference station receiver prevents communication overload of the sensor network and enables accurate and reliable position displacement calculation.

1 is a block diagram showing the configuration of a GNSS receiver according to the prior art.
2 is a view for explaining the overall situation monitoring system to which the present invention is applied.
3 is a block diagram illustrating a position sensor in accordance with the present invention.
4 is a block diagram illustrating a reference station receiver in accordance with the present invention.
5 is a flowchart illustrating a situation monitoring method according to the present invention.

Hereinafter, embodiments of a situation monitoring system and method according to the present invention and a position sensor used therein will be described in more detail with reference to the accompanying drawings.

2 is a view for explaining the overall situation monitoring system to which the present invention is applied.

Referring to Figure 2, the situation monitoring system of the present invention is disposed on the inclined surface to monitor the state of the inclined surface and receives a satellite signal from the satellite (S) and extracts an RF sampling signal from the satellite signal and transmits through a plurality of communication A position sensor 20.

Here, the position sensors 20 configure a sensor network that delivers the generated RF sampling signal to a proximity sensor to be delivered to a target reference station receiver 40, and the configuration of the network is a wired Ethernet connection. It is also possible, but preferably wirelessly connected to Wi-Fi (ad hoc) is advantageous for the operation of the situation monitoring system.

In addition, the situation monitoring system of the present invention is disposed on the position outside the inclined plane and collects RF sampling signals transmitted from the position sensors 20 to extract the navigation data of each position sensor through the integrated process to analyze whether the displacement of the inclined plane Reference station receiver 40 is included.

Here, the reference station receiver 40 receives and collects RF sampling signals transmitted from the position sensors 20 through the gateway 30, and the gateway 30 performs wired / wireless communication with the position sensors 20. It is preferable to configure the Ethernet switch (Ethernet Switch) or Wi-Fi AP (Access Point) to enable.

In addition, the reference station receiver 40 can be connected to a computer system installed in the monitoring center, and transmits information on the occurrence of the detected situation to the alarm system of the alarm center so that evacuation and regulation information according to the slope collapse prediction is distributed, and the boundary and evacuation In addition, after distributing regulatory information, it can assist in determining whether to release boundary, evacuation, and regulatory information based on weather data, slope condition data and collapse risk ratings. Various follow-up actions are possible, such as message processing of relevant information.

In addition, the reference station receiver 40 transmits a triggering signal to each of the position sensors 20, and each position sensor 20 samples and temporarily stores an RF signal for a predetermined time according to the triggering signal, and then RF sampling through network communication. By transmitting the signal to the reference station receiver, communication overload of the position sensor and sensor network is prevented and accurate and reliable position displacement calculation is possible.

Here, the triggering signal transmitted from the reference station receiver 40 is transmitted to each position sensor 20 through the sensor network via the gateway 30. That is, the RF sampling signal transfer method transmits the RF sampling signal from the position sensor of the upper node to the position sensor of the lower node, and the position sensor of the corresponding lower node also transmits the RF sampling signal of the position sensor of the upper node together. This is a signal transmission method through a network, and vice versa, a triggering signal is transmitted.

Now with reference to Figure 3 looks at in detail with respect to the position sensor 20 according to the present invention.

The position sensor 20 receives the satellite signal detected by the antenna 21 and converts the RF signal 22 into an intermediate frequency (IF) signal and the intermediate frequency signal converted by the RF unit 12. And a node communication unit 25 for lowering the baseband to generate an RF sampling signal and communicating the same, and a node communication unit 25 for transmitting the RF sampling signal to an external (other position sensor or gateway). The memory unit 24 may temporarily store the RF sampling signal transmitted from another node and manage path information for network transmission of the RF sampling signal, and the power supply unit 26 may operate the position sensor 20. Supply power for

First, the RF unit 22 generates an intermediate frequency signal through signal processing through hardware such as an amplifier, a mixer, and an A / D converter, and an amplifier for amplifying a satellite signal input from the antenna 11 and an output from the amplifier. A mixer that down-converts the satellite signal to an intermediate frequency band by mixing an appropriate frequency signal with a satellite signal, an amplifier that amplifies the intermediate frequency satellite signal output from the mixer, and converts the intermediate frequency satellite signal into a digital signal to convert the digital satellite signal. It may include an A / D conversion unit for generating a.

The sampling signal processing unit 23 lowers the intermediate frequency signal converted by the RF unit 12 to a base band to directly generate an RF sampling signal, and communicates it to the node communication unit 25 for external transmission. To pass). That is, in the present invention, since the signal transmitted between the sensor nodes is not a navigation data but an RF sampling signal, a signal processing configuration for generating separate navigation data is not necessary.

The node communication unit 25 receives the RF sampling signal transmitted from the sampling signal processing unit 23, and extracts an RF sampling signal of another sensor node stored in the memory unit 24 to obtain its own RF sampling signal and other signals. The RF sampling signal of the node is transferred to another sensor node or the gateway 30 with reference to the signal transmission path information of the memory unit 24. At this time, the RF sampling signal of the node communication unit 25 can be wired Ethernet (Ethernet) connection, but preferably wirelessly connected to the Wi-Fi (ad hoc) for the operation of the situation monitoring system It is advantageous.

In addition, the node communication unit 25 not only generates an RF sampling signal generated through itself due to the installation characteristics of the position sensors 20 scattered on a wide range of inclined surfaces, but also an RF sampling signal of another position sensor located in the vicinity of the next path. In this way, the sensor network covering the communication range of the position sensor is established.

Therefore, the data transmitted between the position sensors may include identification information for identifying each position sensor together with the RF sampling signal.

Here, the RF sampling signals of other sensor nodes are temporarily stored in the memory unit 24. If more RF sampling signals are accumulated in the memory unit 24 than the communication capability of the node communication unit 25, an overflow ( Overflow) may occur. To find the relative positional displacement, it is necessary to use the RF sampling signals sampled at about the same time.

Therefore, since continuous RF sampling is not necessary, the reference station receiver 40 transmits a triggering signal, which is a sampling reference time, to each position sensor 20 in order to reduce the amount of data. 20, the RF signal is sampled for a predetermined time according to the triggering signal which is a reference time, stored in the memory unit 24, and transmitted.

On the other hand, the position sensor 20 is installed on the inclined surface for monitoring the inclined surface and requires a certain operating power for communication with the satellite and communication of the sensor network and internal driving, for this purpose, the power supply unit 26 It is possible to make semi-permanent operation possible by constructing a solar cell. In addition, a rechargeable battery may be added to the power supply unit 26 to allow stable operation without being affected by the weather environment.

Next, the reference station receiver 40 will be described in detail with reference to FIG. 4.

Referring to FIG. 4, the reference station receiver 40 receives the RF sampling signal of each position sensor 20 from the gateway 30, and the RF sampling collected from the signal communication unit 41. A baseband processor 42 for generating navigation data by integrating a signal, and a data analyzer 43 for determining whether displacement of each position sensor 20 is generated by analyzing navigation data of the baseband processor 42. And a display unit 44 for displaying the navigation data or the displacement information of each position sensor 20, and the navigation data and the displacement information of each position sensor 20, and to determine basic information about the inclined plane and determination of displacement. A data storage unit 45 for managing information for the information, an external communication unit 46 for transmitting the analyzed result to the outside, and a triggering signal generator for generating a triggering signal for a sampling reference time of each position sensor 20. Contains 47 .

The signal communication unit 41 is connected to the gateway 30 to collect RF sampling signals of each position sensor 20 constituting the entire sensor network.

In addition, the baseband processor 42 receives the RF sampling signal transmitted from the signal communication unit 41 and extracts navigation data by integrating the RF sampling signal through a software operation. The integrated process may generate a correlation value by correlating the coded signal with the signal down to the baseband transmitted from each position sensor 10 for signal tracking, and using the RF sampling signal and the auxiliary information, a visible satellite The pseudo distance for each of them is calculated, and the position of each position sensor 10 is determined using the pseudo distance information.

The data analyzer 43 stores navigation data of each position sensor 10 output from the baseband processor 42 in the data storage 45, while referring to the data storage 45. The navigation data of the position sensor 10 is analyzed in time series to detect whether displacement of each position sensor 20 occurs. Such a displacement may be detected by comparing the position values of the position sensors 10 at the time before and after the time, and the reference for the displacement amount, the displacement speed, and the acceleration of displacement is referred to the data storage unit 45. do. In addition, the data analyzer 43 may generate and distribute information such as a boundary, an evacuation, and a restriction on the inclined plane by comparing the detected displacement value according to the distance reference for whether the displacement occurs.

The data storage unit 45 stores and manages time-based navigation data of each position sensor 10 through the data analyzer 43. In addition, the data storage unit 45 stores reference information on the displacement amount, the displacement speed, and the acceleration of displacement of each position sensor 10. This reference information may be set to an issue threshold and a release threshold. In addition, the data storage unit 45 stores the information related to the disaster history and the countermeasure structure for the managed slope as basic information, and at the same time, the slope state data and the weather data are stored and managed.

The display unit 44 displays navigation data or displacement information of each position sensor 20 transmitted through the data analysis unit 43, and information such as boundary, evacuation, and regulation on an inclined surface may be displayed.

The external communication unit 46 may transmit the result analyzed by the data analysis unit 43 to a computer system installed in the monitoring center, and transmit the result to the alarm system of the alarm center so that an alarm is issued or through a mobile phone network. It can be delivered to a designated mobile terminal to process information about the occurrence of a situation.

That is, the reference station receiver 40 may be connected to the computer system installed in the monitoring center through the external communication unit 46. The reference station receiver 40 may transmit the information about the detected incident to the alarm system of the alarm center to predict the collapse of the slope. After evacuation and regulatory information has been distributed and boundary, evacuation and regulatory information has been distributed, we can assist in deciding whether or not to issue boundary, evacuation and regulatory information based on weather data, slope condition data and collapse risk ratings. Various follow-up actions are possible, such as message processing of information on the occurrence of a situation to a designated mobile terminal through a network.

In addition, the triggering signal generator 47 generates a triggering signal which is a reference time required for RF sampling of each position sensor 20, and transmits the triggering signal to each position sensor 20 through the signal communication unit 41. Accordingly, each position sensor 20 samples the RF signal for a predetermined time according to the triggering signal which is a reference time, and stores and transmits the RF signal to the memory unit 24 to prevent communication overload of the sensor network and calculate accurate and reliable position displacement. This becomes possible. For example, if the triggering signal is generated once every 1 second, the positional displacement of each position sensor will be calculated every second, and if it is generated once every 5 seconds, the positional displacement will be calculated every 5 seconds. The reference time of the triggering signal may be determined in consideration of the communication capability of the corresponding position sensor and the sensor network or the memory size of the position sensor.

The reference station receiver 40 may be configured as a separate terminal, but may be implemented in software on a PC.

Now, a situation monitoring method according to the present invention will be described in detail with reference to FIG. 5.

In the landslide monitoring system to which the landslide monitoring method described below is applied, a plurality of position sensors 20 are installed on an inclined surface as described above to receive satellite signals related to their current position from the satellite S, and receive RF signals from the satellite signals. The sampling signal is extracted, and each of the position sensors 20 forms a wired or wireless sensor network to transmit the RF sampling signal to a sensor located in proximity to the desired reference station receiver 40.

First, the reference station receiver 40 generates a triggering signal which is a reference time necessary for RF sampling of each position sensor 20 through the triggering signal generator 47, and generates the position signal through the signal communication unit 41. 20) to be delivered (S10). Accordingly, each position sensor 20 samples the RF signal for a predetermined time according to the triggering signal which is a reference time, and stores and transmits the RF signal to the memory unit 24. The reference time of the triggering signal may be determined in consideration of the communication capability of the corresponding position sensor and the sensor network or the memory size of the position sensor.

Thereafter, the reference station receiver 40 collects the RF sampling signals transmitted from the position sensors 10 through the signal communication unit 41 (S20). Here, the RF sampling signal is generated by lowering the intermediate frequency signal converted by the RF unit 12 of the corresponding position sensor 10 to a base band. In the present invention, a signal transmitted between sensor nodes is a navigation signal. Since the RF sampling signal is not data, the position sensor 10 does not require a separate signal processing configuration for generating navigation data.

Thereafter, the reference station receiver 40 extracts navigation data by integrating the RF sampling signal of each position sensor 10 through a baseband processor 42 through a software operation (S30).

Thereafter, the reference station receiver 40 calculates the displacement of each position sensor 20 by analyzing the navigation data of each position sensor 10 in time series through the data analyzer 43 (S40).

In addition, the reference station receiver 40 determines whether a displacement is detected in the specific position sensor 10 through the data analyzer 43 (S50), and the displacement is detected in the specific position sensor 10. In this case, the result analyzed by the external communication unit 46 is transmitted to the computer system installed in the monitoring center, the alarm system of the alarm center to support the alarm is issued, or delivered to the designated mobile terminal through the mobile phone network to the situation Various situation occurrence processing may be performed, such as processing information about the message (S60).

On the other hand, the situation monitoring method according to an embodiment of the present invention can be implemented in the form of program instructions that can be executed through various electronic means for processing information can be recorded in the storage medium. The storage medium may include program instructions, data files, data structures, and the like, alone or in combination.

Program instructions to be recorded on the storage medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of software. Examples of storage media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic-optical media such as floppy disks. hardware devices specifically configured to store and execute program instructions such as magneto-optical media and ROM, RAM, flash memory, and the like. In addition, the above-described medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as devices for processing information electronically using an interpreter or the like, for example, a high-level language code that can be executed by a computer.

The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

20: position sensor 30: gateway
40: reference station receiver

Claims (13)

At least one position sensor disposed on an inclined surface and receiving a satellite signal from a satellite and extracting and transmitting an RF sampling signal; And
A reference station receiver which receives the RF sampling signal transmitted from the position sensor and extracts navigation data of each position sensor and analyzes whether displacement of the inclined surface occurs; Including;
Wherein the position sensors are characterized in that for forming a sensor network capable of communicating by wire or wireless to transmit the RF sampling signal to the reference station receiver through the network communication,
The position sensor,
antenna;
An RF unit which receives the satellite signal detected by the antenna and converts the satellite signal into an intermediate frequency signal;
A sampling signal processing unit which generates an RF sampling signal by communicating the intermediate frequency signal converted by the RF unit to a baseband and generates a communication process;
A node communication unit for transmitting the RF sampling signal to another location sensor or gateway; And
A memory unit for temporarily storing an RF sampling signal transmitted from another position sensor and managing path information for network transmission of the RF sampling signal; Incident monitoring system comprising a.
delete The method of claim 1,
The reference station receiver,
A signal communication unit receiving an RF sampling signal of each position sensor through a gateway;
A baseband processor configured to generate navigation data by integrating an RF sampling signal collected from the signal communicator; And
A data analyzer for analyzing the navigation data of the baseband processor to determine whether displacement of each position sensor occurs; Incident monitoring system comprising a.
The method of claim 1,
The configuration of the sensor network is a situation monitoring system, characterized in that connected by wired Ethernet or wireless Wi-Fi.
The method of claim 1,
The position sensor further comprises a power supply for operating power supply.
The method of claim 3, wherein
The reference station receiver,
A triggering signal generator configured to generate a triggering signal for a sampling reference time of each position sensor; More,
And the position sensor receiving the triggering signal samples and temporarily stores the RF signal for a predetermined time according to the triggering signal, and then transmits the RF sampling signal to the reference station receiver through network communication.
delete delete delete delete antenna;
An RF unit which receives the satellite signal detected by the antenna and converts the satellite signal into an intermediate frequency signal;
A sampling signal processing unit which generates an RF sampling signal by communicating the intermediate frequency signal converted by the RF unit to a baseband and generates a communication process;
A node communication unit for transmitting the RF sampling signal to another location sensor or gateway; And
A memory unit for temporarily storing an RF sampling signal transmitted from another position sensor and managing path information for network transmission of the RF sampling signal; Including;
And a sensor network configured to communicate with other position sensors disposed on an inclined surface in a wired or wireless manner, and transmit an RF sampling signal to a reference station receiver through network communication.
12. The method of claim 11,
The position sensor further comprises a power supply for operating power supply.
12. The method of claim 11,
The position sensor receives a triggering signal transmitted from a reference station receiver, and stores and temporarily stores an RF signal for a predetermined time according to the corresponding triggering signal, and transmits an RF sampling signal to the reference station receiver through network communication. Position sensor.

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