CN114355389B - Gas pipeline interface deformation monitoring method and system based on dual-antenna GNSS receiver - Google Patents
Gas pipeline interface deformation monitoring method and system based on dual-antenna GNSS receiver Download PDFInfo
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Abstract
The invention relates to the field of monitoring of gas pipeline interfaces and discloses a method and a system for monitoring deformation of a gas pipeline interface based on a dual-antenna GNSS receiver. The method can more timely and effectively judge whether the gas interface is deformed, and effectively reduce the potential safety hazard caused by the deformation of the gas pipeline interface.
Description
Technical Field
The invention relates to the field of gas pipeline interface monitoring, in particular to a gas pipeline interface deformation monitoring method and system based on a dual-antenna GNSS receiver.
Background
For example, the gas pipeline is driven into thousands of households today, and great convenience is brought to the life of residents. However, the natural gas pipeline is led in, and the pipeline is abnormal due to natural disasters or artificial damages, so that fire explosion accidents caused by gas leakage are caused. The abnormality of the gas pipeline is usually represented by abnormality of the pipeline joints, and in the actual laying process of the gas pipeline, the gas pipeline extends to each residential building of each district, so that more pipeline joints exist, and the pipeline joints are the weakest places in the whole gas pipeline system and are the places where deformation is most likely to occur to cause gas leakage. At present, no intelligent monitoring method is provided for the pipeline interface in the gas pipeline, and the main gas leakage monitoring is only to stay in the resident home for intelligent monitoring, so that the abnormality of the pipeline interface in the gas pipeline cannot be found in time, thereby generating a larger potential safety hazard.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a gas pipeline interface deformation monitoring method based on a dual-antenna GNSS receiver, which can solve the problem that the abnormality of the pipeline interface in a gas pipeline cannot be found in time due to the fact that no intelligent monitoring method is carried out on the pipeline interface in the gas pipeline at present, so that a large potential safety hazard is generated.
The invention aims at providing a gas pipeline interface deformation monitoring system based on a dual-antenna GNSS receiver, which can solve the problem that the abnormality of the pipeline interface in the gas pipeline cannot be found in time due to the fact that an intelligent monitoring method for the pipeline interface in the gas pipeline is not available at present, so that a large potential safety hazard is generated.
One of the purposes of the invention is realized by adopting the following technical scheme:
the utility model provides a gas pipeline interface deformation monitoring method based on two antenna GNSS receivers, gas pipeline interface is located the interface department of gas trunk line and gas lateral conduit, its characterized in that: taking the position, which is located at the position of the preset installation distance, of the interface of the gas pipeline, on the gas main pipeline as a main pipeline monitoring point, taking the position, which is located at the position of the preset installation distance, of the interface of the gas pipeline, on the gas branch pipeline as a branch pipeline monitoring point, installing a first GNSS antenna on the main pipeline monitoring point and installing a second GNSS antenna on the branch pipeline monitoring point, wherein the method comprises the following steps:
Receiving observation data, namely receiving first satellite observation data corresponding to the main pipeline monitoring point and second satellite observation data corresponding to the branch pipeline, which are sent by a GNSS receiver, wherein the first satellite observation data is sent to the GNSS receiver by a first GNSS antenna, and the second satellite observation data is sent to the GNSS receiver by a second GNSS antenna;
calculating a current position coordinate, calculating a first current position coordinate corresponding to the main pipeline monitoring point according to the first satellite observation data, and calculating a second current position coordinate corresponding to the branch pipeline monitoring point according to the second satellite observation data;
Calculating an offset value, comparing the first current position coordinate with a pre-stored first initial position coordinate to obtain a first offset value, and comparing the second current position coordinate with a pre-stored second initial position coordinate to obtain a second offset value, wherein the first initial position coordinate is an initial position coordinate of the main pipeline monitoring point before the gas pipeline interface is not deformed, and the second initial position coordinate is an initial position coordinate of the branch pipeline before the gas pipeline interface is not deformed;
Judging whether the gas pipeline interface is deformed, judging whether the first deviation value or the second deviation value exceeds a preset deviation threshold value, if so, recognizing that the gas pipeline interface is deformed, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to execute the step of receiving the observation data.
Further, before the step of determining whether to deform, the method further comprises: calculating a distance deviation value, namely calculating an initial distance between the main pipeline monitoring point and the branch pipeline monitoring point before the gas pipeline interface is not deformed according to a first initial position coordinate and a second initial position coordinate which are stored in advance, calculating a current distance between the main pipeline monitoring point and the branch pipeline monitoring point according to a first current position coordinate and a second current position coordinate, and comparing the initial distance with the current distance to obtain a distance deviation value;
And when the first deviation value or the second deviation value does not exceed a preset deviation threshold, continuously judging whether the absolute value of the distance deviation value exceeds the preset absolute deviation threshold, if so, recognizing that the gas pipeline interface is deformed, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to execute the step of receiving the observation data.
Further, the method further comprises the step of storing initial position coordinates before receiving the observed data, and the step of receiving and storing first initial position coordinates corresponding to the main pipeline monitoring point and second initial position coordinates corresponding to the main pipeline monitoring point and transmitted by the first GNSS antenna and the second GNSS antenna through the GNSS receiver after the first GNSS antenna and the second GNSS antenna are installed and before deformation monitoring is not carried out on the gas pipeline interface.
The second purpose of the invention is realized by adopting the following technical scheme:
The gas pipeline interface deformation monitoring device based on the dual-antenna GNSS receiver takes the position, which is located at the position with the preset installation distance, of the gas pipeline interface on the gas main pipeline as a main pipeline monitoring point, and the position, which is located at the position with the preset installation distance, of the gas pipeline interface on the gas branch pipeline as a branch pipeline monitoring point, wherein the device comprises a GNSS receiver, a background server, a first GNSS antenna and a second GNSS antenna, the first GNSS antenna is fixed at the position of the main pipeline monitoring point, the second GNSS antenna is fixed at the position of the branch pipeline monitoring point, the first GNSS antenna and the second GNSS antenna are respectively connected with the GNSS receiver, and the GNSS receiver establishes communication with the background server;
The GNSS receiver receives first satellite observation data corresponding to the main pipeline monitoring point and transmitted by a satellite through the first GNSS antenna, the GNSS receiver receives second satellite observation data corresponding to the branch pipeline monitoring point and transmitted by a satellite through the second GNSS antenna, the GNSS receiver transmits the first satellite observation data and the second satellite observation data to the background server, the background server calculates a first current position coordinate corresponding to the main pipeline monitoring point according to the first satellite observation data and a second current position coordinate corresponding to the branch pipeline monitoring point according to the second satellite observation data, the background server compares the first current position coordinate with a pre-stored first initial position coordinate to obtain a first deviation value, and the background server compares the second current position coordinate with the pre-stored second initial position coordinate to obtain a second deviation value; and the background server judges whether the first deviation value or the second deviation value exceeds a preset deviation threshold value, if so, the background server determines that the gas pipeline interface is deformed, generates alarm information and sends the alarm information to a gas pipeline maintenance center.
Further, the first GNSS antenna and the second GNSS antenna are both connected with the GNSS receiver through antenna cables.
Further, the GNSS receiver comprises a wireless communication module, and the GNSS receiver establishes communication with the background server through the wireless communication module.
Further, the wireless communication module is a 3G network module or a 4G network module or a 5G network module or a radio station module.
Further, the GNSS receiver further includes a dual-antenna OEM module for receiving the first satellite observation data and the second satellite observation data, the dual-antenna OEM module is connected to the first GNSS antenna and the second GNSS antenna through antenna cables, respectively, and the dual-antenna OEM module is connected to the wireless communication module.
Further, the background server is a PC server.
Further, the background server includes a first receiving port for receiving the first satellite observation data and a second receiving port for receiving the second satellite observation data.
Compared with the prior art, the invention has the beneficial effects that: according to the gas pipeline interface deformation monitoring method based on the dual-antenna GNSS receiver, the current position coordinates of the main pipeline monitoring point and the branch pipeline monitoring point near the gas pipeline interface are obtained, the current position coordinates are compared with the initial position coordinates to obtain the position deviation value, the deviation value is compared with the preset deviation threshold value to determine whether the gas pipeline interface deforms, if so, alarm information is immediately produced and sent to a gas maintenance center, intelligent monitoring of deformation of the gas pipeline interface is achieved, accurate monitoring of positions of the main pipeline monitoring point and the branch pipeline monitoring point is achieved through the GNSS receiver, whether position changes occur can be timely found, further whether the gas pipeline interface deforms can be more timely and effectively judged, and potential safety hazards caused by deformation of the gas pipeline interface are effectively reduced.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a flow chart of a method for monitoring deformation of a gas pipeline interface based on a dual-antenna GNSS receiver according to the present invention;
fig. 2 is a block diagram of a gas pipeline interface deformation monitoring system based on a dual-antenna GNSS receiver according to the present invention.
In the accompanying drawings: 1. a gas pipeline interface; 2. a main pipeline monitoring point; 3. and a branch pipeline monitoring point.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
In the application, whether the gas pipeline interface 1 deforms is monitored in real time, the gas pipeline interface 1 is positioned at the interface of a gas main pipeline and a gas branch pipeline, the position, which is positioned on the gas main pipeline and has the distance of a preset installation distance from the gas pipeline interface 1, is used as a main pipeline monitoring point 2, the position, which is positioned on the gas branch pipeline and has the distance of the preset installation distance from the gas pipeline interface 1, is used as a branch pipeline monitoring point 3, a first GNSS antenna is arranged on the main pipeline monitoring point 2, and a second GNSS antenna is arranged on the branch pipeline monitoring point 3. GNSS (Global Navigation SATELLITE SYSTEM), which refers broadly to all satellite navigation systems, including global, regional and enhanced navigation systems such as GPS in the united states, glonass in russia, galileo in europe, beidou satellite navigation system in china, and related enhancement systems such as WAAS (wide area enhancement system) in the united states, EGNOS (geostationary navigation overlay system) in europe, and MSAS (multi-function transport satellite enhancement system) in japan, among others, are also contemplated for construction and later construction. The international GNSS system is a complex combination of multiple systems, multi-level, multi-mode systems. In this embodiment, the preset installation distance is generally 5cm to 50cm, the specific value may be determined according to the material of the gas pipeline in the actual process, if the material of the gas pipeline is allowed to slightly deform, the value of the preset installation distance is set to be larger, if the material of the gas pipeline is harder, the quality problems such as interface burst and the like will be caused by slight deformation, and the value of the preset installation distance needs to be set to be smaller.
As shown in fig. 1, the method specifically comprises the following steps:
And storing initial position coordinates, after the first GNSS antenna and the second GNSS antenna are installed and before deformation monitoring is performed on the gas pipeline interface 1, receiving and storing the first initial position coordinates corresponding to the main pipeline monitoring point 2 and transmitted by the first GNSS antenna and the second initial position coordinates corresponding to the main pipeline monitoring point 2 and transmitted by the second GNSS antenna through a GNSS receiver.
And receiving the observation data, namely receiving first satellite observation data corresponding to the main pipeline monitoring point 2 and second satellite observation data corresponding to the branch pipeline, which are sent by the GNSS receiver, wherein the first satellite observation data are sent to the GNSS receiver by the first GNSS antenna, and the second satellite observation data are sent to the GNSS receiver by the second GNSS antenna. In this embodiment, the first GNSS antenna receives the first satellite observation data sent by the satellite and then sends the first satellite observation data to the GNSS receiver, and the second GNSS antenna receives the second satellite observation data sent by the satellite and then sends the second satellite observation data to the GNSS receiver. The GNSS receiver is a dual-antenna receiver, and can simultaneously receive data sent by the first GNSS antenna and the second GNSS antenna.
And calculating the current position coordinates, calculating the first current position coordinates corresponding to the main pipeline monitoring point 2 according to the first satellite observation data, and calculating the second current position coordinates corresponding to the branch pipeline monitoring point 3 according to the second satellite observation data.
Calculating an offset value, comparing a first current position coordinate with a pre-stored first initial position coordinate to obtain a first offset value, and comparing a second current position coordinate with a pre-stored second initial position coordinate to obtain a second offset value, wherein the first initial position coordinate is an initial position coordinate of the main pipeline monitoring point 2 before the gas pipeline interface 1 is not deformed, and the second initial position coordinate is an initial position coordinate of the branch pipeline before the gas pipeline interface 1 is not deformed;
Judging whether the gas pipeline interface 1 deforms, judging whether the first deviation value or the second deviation value exceeds a preset deviation threshold value, if so, recognizing that the gas pipeline interface 1 deforms, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to execute the step of receiving the observation data.
Preferably, before the step of determining whether to deform, the method further comprises: calculating a distance deviation value, namely calculating an initial distance between the main pipeline monitoring point 2 and the branch pipeline monitoring point 3 before the gas pipeline interface 1 is not deformed according to a first initial position coordinate and a second initial position coordinate which are stored in advance, calculating a current distance between the main pipeline monitoring point 2 and the branch pipeline monitoring point 3 according to a first current position coordinate and a second current position coordinate, and comparing the initial distance with the current distance to obtain the distance deviation value;
When the first deviation value or the second deviation value does not exceed the preset deviation threshold, continuously judging whether the absolute value of the distance deviation value exceeds the preset absolute deviation threshold, if so, recognizing that the gas pipeline interface 1 is deformed, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to the step of receiving the observation data. Through the comparison, whether the distance between the main pipeline monitoring point 2 and the branch pipeline monitoring point 3 near the gas pipeline interface 1 changes or not, and whether the change is within the range of a preset absolute deviation threshold value or not, whether the deformation of the gas pipeline is caused or not is judged more accurately.
As shown in fig. 2, the invention further provides a gas pipeline interface 1 deformation monitoring device based on a dual-antenna GNSS receiver, wherein a position on a gas main pipeline, which is at a preset installation distance from the gas pipeline interface 1, is used as a main pipeline monitoring point 2, a position on a gas branch pipeline, which is at a preset installation distance from the gas pipeline interface 1, is used as a branch pipeline monitoring point 3, the device comprises the GNSS receiver, a background server, a first GNSS antenna and a second GNSS antenna, the first GNSS antenna is fixed at the position of the main pipeline monitoring point 2, the second GNSS antenna is fixed at the branch pipeline monitoring point 3, the first GNSS antenna and the second GNSS antenna are respectively connected with the GNSS receiver, and the GNSS receiver establishes communication with the background server.
In this embodiment, the first GNSS antenna and the second GNSS antenna are both connected to a GNSS receiver through antenna cables, where the GNSS receiver includes a wireless communication module, and the wireless communication module is a 3G network module or a 4G network module or a 5G network module or a radio station module. The GNSS receiver establishes communication with the background server through the wireless communication module. The GNSS receiver further comprises a dual-antenna OEM module for receiving the first satellite observation data and the second satellite observation data, wherein the dual-antenna OEM module is connected with the first GNSS antenna and the second GNSS antenna through antenna cables respectively, and the dual-antenna OEM module is connected with the wireless communication module. The dual-antenna OEM module in this embodiment is a dual-antenna OEM board for receiving the observation data sent by the first GNSS antenna and the second GNSS antenna.
In addition, the background server is a PC server, the data processing can be faster by using the PC server, and the background server comprises a first receiving port for receiving the first satellite observation data and a second receiving port for receiving the second satellite observation data.
The working process is as follows: firstly, initializing a dual-antenna OEM module and a wireless communication module in a GNSS receiver, and connecting a wireless communication port of the GNSS receiver with a first receiving port and a second interface port on a background server; meanwhile, a first receiving port and a second receiving port of a background server end are required to be initialized, a GNSS receiver receives first satellite observation data which are sent by satellites and correspond to a main pipeline monitoring point 2 through a first GNSS antenna, the GNSS receiver receives second satellite observation data which are sent by satellites and correspond to a branch pipeline monitoring point 3 through a second GNSS antenna, the GNSS receiver sends the first satellite observation data and the second satellite observation data to the background server, the background server calculates a first current position coordinate which corresponds to the main pipeline monitoring point 2 according to the first satellite observation data and a second current position coordinate which corresponds to the branch pipeline monitoring point 3 according to the second satellite observation data, the background server compares the first current position coordinate with a prestored first initial position coordinate to obtain a first deviation value, and the background server compares the second current position coordinate with the prestored second initial position coordinate to obtain a second deviation value; the background server judges whether the first deviation value or the second deviation value exceeds a preset deviation threshold value, if yes, the gas pipeline interface 1 is determined to be deformed, and alarm information is generated and sent to a gas pipeline maintenance center.
In addition, the background server calculates an initial distance between the main pipeline monitoring point 2 and the branch pipeline monitoring point 3 before the gas pipeline interface 1 is not deformed according to the first initial position coordinate and the second initial position coordinate which are stored in advance, calculates a current distance between the main pipeline monitoring point 2 and the branch pipeline monitoring point 3 according to the first current position coordinate and the second current position coordinate, and compares the initial distance with the current distance to obtain a distance deviation value;
When the first deviation value or the second deviation value does not exceed the preset deviation threshold, continuously judging whether the absolute value of the distance deviation value exceeds the preset absolute deviation threshold, if so, recognizing that the gas pipeline interface 1 is deformed, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to the step of receiving the observation data. Through the comparison, whether the distance between the main pipeline monitoring point 2 and the branch pipeline monitoring point 3 near the gas pipeline interface 1 changes or not, and whether the change is within the range of a preset absolute deviation threshold value or not, whether the deformation of the gas pipeline is caused or not is judged more accurately.
According to the deformation monitoring method of the gas pipeline interface 1 based on the dual-antenna GNSS receiver, the current position coordinates of the main pipeline monitoring point and the branch pipeline monitoring point near the gas pipeline interface are obtained, the current position coordinates are compared with the initial position coordinates to obtain the position deviation value, the deviation value is compared with the preset deviation threshold value to determine whether the gas pipeline interface is deformed, and if so, alarm information is immediately produced and sent to a gas maintenance center; and whether the distance between the main pipeline monitoring point and the branch pipeline monitoring point near the gas pipeline interface changes or not is compared, and whether the change is within the range of a preset absolute deviation threshold value or not is judged more accurately, so that whether the deformation occurs to the gas pipeline is judged. Finally, the intelligent monitoring of the deformation of the gas pipeline interface is realized, the accurate monitoring of the positions of the main pipeline monitoring point and the branch pipeline monitoring point is realized through the GNSS receiver, whether the position change occurs can be timely found, whether the gas interface is deformed can be timely and effectively judged, and the potential safety hazard caused by the deformation of the gas pipeline interface is effectively reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art can smoothly practice the invention as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (10)
1. The utility model provides a gas pipeline interface deformation monitoring method based on two antenna GNSS receivers, gas pipeline interface is located the interface department of gas trunk line and gas lateral conduit, its characterized in that: taking the position, which is located at the position of the preset installation distance, of the interface of the gas pipeline, on the gas main pipeline as a main pipeline monitoring point, taking the position, which is located at the position of the preset installation distance, of the interface of the gas pipeline, on the gas branch pipeline as a branch pipeline monitoring point, installing a first GNSS antenna on the main pipeline monitoring point and installing a second GNSS antenna on the branch pipeline monitoring point, wherein the method comprises the following steps:
Receiving observation data, namely receiving first satellite observation data corresponding to the main pipeline monitoring point and second satellite observation data corresponding to the branch pipeline, which are sent by a GNSS receiver, wherein the first satellite observation data is sent to the GNSS receiver by a first GNSS antenna, and the second satellite observation data is sent to the GNSS receiver by a second GNSS antenna;
calculating a current position coordinate, calculating a first current position coordinate corresponding to the main pipeline monitoring point according to the first satellite observation data, and calculating a second current position coordinate corresponding to the branch pipeline monitoring point according to the second satellite observation data;
Calculating an offset value, comparing the first current position coordinate with a pre-stored first initial position coordinate to obtain a first offset value, and comparing the second current position coordinate with a pre-stored second initial position coordinate to obtain a second offset value, wherein the first initial position coordinate is an initial position coordinate of the main pipeline monitoring point before the gas pipeline interface is not deformed, and the second initial position coordinate is an initial position coordinate of the branch pipeline before the gas pipeline interface is not deformed;
Judging whether the gas pipeline interface is deformed, judging whether the first deviation value or the second deviation value exceeds a preset deviation threshold value, if so, recognizing that the gas pipeline interface is deformed, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to execute the step of receiving the observation data.
2. The method for monitoring deformation of a gas pipeline interface based on a dual-antenna GNSS receiver as claimed in claim 1, wherein the method comprises the following steps: the step of judging whether to deform further comprises the following steps: calculating a distance deviation value, namely calculating an initial distance between the main pipeline monitoring point and the branch pipeline monitoring point before the gas pipeline interface is not deformed according to a first initial position coordinate and a second initial position coordinate which are stored in advance, calculating a current distance between the main pipeline monitoring point and the branch pipeline monitoring point according to a first current position coordinate and a second current position coordinate, and comparing the initial distance with the current distance to obtain a distance deviation value;
And when the first deviation value or the second deviation value does not exceed a preset deviation threshold, continuously judging whether the absolute value of the distance deviation value exceeds the preset absolute deviation threshold, if so, recognizing that the gas pipeline interface is deformed, generating alarm information and sending the alarm information to a gas pipeline maintenance center, and if not, returning to execute the step of receiving the observation data.
3. The method for monitoring deformation of a gas pipeline interface based on a dual-antenna GNSS receiver as claimed in claim 1, wherein the method comprises the following steps: and the method further comprises the step of storing initial position coordinates before receiving the observed data, and after the first GNSS antenna and the second GNSS antenna are installed and before deformation monitoring is carried out on the gas pipeline interface, receiving and storing the first initial position coordinates corresponding to the main pipeline monitoring point and sent by the first GNSS antenna and the second initial position coordinates corresponding to the main pipeline monitoring point and sent by the second GNSS antenna through the GNSS receiver.
4. Gas pipeline interface deformation monitoring devices based on two antenna GNSS receivers, its characterized in that: the method comprises the steps that the position, which is located at the preset installation distance, of an interface between the gas main pipeline and the gas pipeline is used as a main pipeline monitoring point, the position, which is located at the preset installation distance, of the interface between the gas main pipeline and the gas pipeline is used as a branch pipeline monitoring point, the position, which is located at the preset installation distance, of the gas main pipeline is used as a branch pipeline monitoring point, the device comprises a GNSS receiver, a background server, a first GNSS antenna and a second GNSS antenna, the first GNSS antenna is fixed at the position of the main pipeline monitoring point, the second GNSS antenna is fixed at the branch pipeline monitoring point, the first GNSS antenna and the second GNSS antenna are respectively connected with the GNSS receiver, and communication is established between the GNSS receiver and the background server;
The GNSS receiver receives first satellite observation data corresponding to the main pipeline monitoring point and transmitted by a satellite through the first GNSS antenna, the GNSS receiver receives second satellite observation data corresponding to the branch pipeline monitoring point and transmitted by a satellite through the second GNSS antenna, the GNSS receiver transmits the first satellite observation data and the second satellite observation data to the background server, the background server calculates a first current position coordinate corresponding to the main pipeline monitoring point according to the first satellite observation data and a second current position coordinate corresponding to the branch pipeline monitoring point according to the second satellite observation data, the background server compares the first current position coordinate with a pre-stored first initial position coordinate to obtain a first deviation value, and the background server compares the second current position coordinate with the pre-stored second initial position coordinate to obtain a second deviation value; and the background server judges whether the first deviation value or the second deviation value exceeds a preset deviation threshold value, if so, the background server determines that the gas pipeline interface is deformed, generates alarm information and sends the alarm information to a gas pipeline maintenance center.
5. The dual-antenna GNSS receiver based gas pipeline interface deformation monitoring device of claim 4 wherein: the first GNSS antenna and the second GNSS antenna are connected with the GNSS receiver through antenna cables.
6. The dual-antenna GNSS receiver based gas pipeline interface deformation monitoring device of claim 4 wherein: the GNSS receiver comprises a wireless communication module, and the GNSS receiver establishes communication with the background server through the wireless communication module.
7. The dual-antenna GNSS receiver based gas pipeline interface deformation monitoring device of claim 6 wherein: the wireless communication module is a 3G network module or a 4G network module or a 5G network module or a radio station module.
8. The dual-antenna GNSS receiver based gas pipeline interface deformation monitoring device of claim 6 wherein: the GNSS receiver further comprises a dual-antenna OEM module for receiving the first satellite observation data and the second satellite observation data, wherein the dual-antenna OEM module is connected with the first GNSS antenna and the second GNSS antenna through antenna cables respectively, and the dual-antenna OEM module is connected with the wireless communication module.
9. The dual-antenna GNSS receiver based gas pipeline interface deformation monitoring device of claim 4 wherein: the background server is a PC server.
10. The dual-antenna GNSS receiver based gas pipeline interface deformation monitoring device of claim 4 wherein: the background server includes a first receiving port for receiving first satellite observation data and a second receiving port for receiving second satellite observation data.
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| 多模GNSS双天线旋转初始定向方法;蔡体菁;朱丹丹;宋军;王鑫;陈仁;许奇梦;;压电与声光;20180815(04);全文 * |
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