CN111583066A - Power construction site informatization supervision system based on wireless sensor network - Google Patents
Power construction site informatization supervision system based on wireless sensor network Download PDFInfo
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Abstract
The invention relates to an electric power construction site informatization supervision system based on a wireless sensor network, which has the technical scheme that each backbone node is internally provided with a load quantity threshold M and a preprocessing quantity threshold N; when the number of the common monitoring nodes in communication connection with the backbone nodes reaches N, the backbone nodes select a secondary backbone node configured to send data to the sink node from the N common monitoring nodes which have established communication connection; the backbone nodes are also used for sending a trigger signal which enables the secondary backbone nodes to form a communication network in the communication range of the secondary backbone nodes to the secondary backbone nodes when the number of the common monitoring nodes in communication connection reaches M, and the rest common monitoring nodes in the monitoring subarea to which the backbone nodes belong are communicated with the secondary backbone nodes. According to the invention, through the arrangement of the backbone nodes and the secondary backbone nodes, the effect of improving the stability of sensor data transmission in the informatization supervision of the power construction site is facilitated.
Description
Technical Field
The invention relates to the technical field of electric power construction site supervision, in particular to an electric power construction site informatization supervision system based on a wireless sensor network.
Background
In the supervision work of the electric power construction site, the information management and control are often completed through the assistance of a site video monitoring system and an engineering management system. However, the on-site video collected by the on-site video monitoring system needs to be viewed in real time by investing manpower, and it is difficult to comprehensively guide and standardize the on-site work. The engineering management system mainly completes information work at a PC end, lacks mobile internet and is difficult to acquire, monitor and record the information of the electric power construction site in real time.
In order to solve the above problems, chinese patent publication No. CN108055353A discloses an electric power construction site information monitoring system capable of acquiring, monitoring and recording electric power construction site information in real time and facilitating workers to make a quick judgment on the working site conditions, which includes an on-site monitoring wireless sensor network, a video monitoring module, an attendance management module, an information monitoring center and a management mobile terminal, wherein the on-site monitoring wireless sensor network, the video monitoring module, the attendance management module and the management mobile terminal are all connected to the information monitoring center, and the on-site monitoring wireless sensor network is used for acquiring the electric power construction site information and sending the electric power construction site information to the information monitoring center.
The field monitoring wireless sensor network comprises a plurality of sensor nodes deployed in a set electric power construction field monitoring area, and adopts a network model as follows: dividing a power construction site monitoring area into a plurality of virtual square monitoring sub-areas with the same size, wherein a backbone node is selected from sensor nodes in each square monitoring sub-area through election, and the rest sensor nodes are used as common monitoring nodes, wherein the backbone nodes are used for collecting power construction site information collected by the common monitoring nodes in the square monitoring sub-areas, all the backbone nodes form a communication network in the communication range of the backbone nodes, and each common monitoring node is communicated with the backbone nodes in the square monitoring sub-area through a single-hop mode; the on-site monitoring wireless sensor network also comprises a sink node which is used for collecting the electric power construction site information gathered by the backbone nodes in real time.
However, the above prior art solutions have the following drawbacks: the common monitoring nodes in each square monitoring sub-area gather the detected data into the backbone nodes and send the data out by the backbone nodes, so that the load rate of the backbone nodes is high, data processing delay and even downtime of the backbone nodes are easily caused, and when a certain backbone node influences data transmission of the current square monitoring sub-area due to high load rate, comprehensive informatization monitoring of an electric power construction site is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the power construction site informatization supervision system based on the wireless sensor network, and the power construction site informatization supervision system has the advantage of being beneficial to improving the stability of sensor data transmission in the informatization supervision of the power construction site.
The above object of the present invention is achieved by the following technical solutions:
an electric power construction site informatization management system based on a wireless sensor network comprises an informatization management center and an on-site monitoring wireless sensor network, wherein the on-site monitoring wireless sensor network comprises a plurality of sensor nodes deployed in a set electric power construction site monitoring area and a plurality of virtual monitoring sub-areas divided according to the electric power construction site monitoring area; one of the sensor nodes in each monitoring subarea is configured as a backbone node, and the rest sensor nodes are common monitoring nodes; the on-site monitoring wireless sensor network also comprises a sink node which is used for collecting the electric power construction site information gathered by the backbone nodes in real time and sending the information to the information monitoring center for displaying; a load quantity threshold M and a preprocessing quantity threshold N are arranged in each backbone node, wherein the load quantity threshold M is smaller than the total number T of common monitoring nodes in a monitoring subarea to which the backbone node belongs, and the preprocessing quantity threshold N is smaller than the load quantity threshold M;
each backbone node forms a communication network in the communication range of the backbone node, and each common monitoring node is communicated with the backbone nodes in the monitoring subareas to which the common monitoring node belongs; when the number of the common monitoring nodes in communication connection with the backbone nodes reaches N, the backbone nodes select a secondary backbone node configured to send data to a sink node from the N common monitoring nodes with established communication connection; and the backbone nodes are also used for sending a trigger signal which enables the secondary backbone nodes to form a communication network in the communication range of the secondary backbone nodes to the secondary backbone nodes when the number of the common monitoring nodes in communication connection reaches M, and the remaining common monitoring nodes in the monitoring subarea to which the backbone nodes belong are communicated with the secondary backbone nodes.
By adopting the technical scheme, each monitoring sub-area is provided with one backbone node and one secondary backbone node, the secondary backbone node is one of N common monitoring nodes which are in communication connection with the backbone nodes, and other common monitoring points exceeding N in each monitoring sub-area are in communication with the corresponding secondary backbone nodes, so that the load pressure of the backbone nodes is greatly relieved, and the stability of sensor data transmission in the information supervision of the power construction site is improved.
The present invention in a preferred example may be further configured to: the on-site monitoring wireless sensor network further comprises a numbering module, wherein the numbering module is configured to be used for numbering the sensor nodes in each monitoring sub-area in sequence; the selecting, by the backbone node, one secondary backbone node configured to send data to the aggregation node from the N common monitoring nodes with which communication connection is established specifically includes:
and the backbone nodes select a secondary backbone node configured to send data to the sink node from the N common monitoring nodes which establish communication connection according to the successful connection time and the serial number of the sensor node.
By adopting the technical scheme, the common monitoring nodes serving as the secondary backbone nodes are screened according to the connection success time and the serial numbers of the sensor nodes, so that the stable and quick completion of the secondary backbone nodes is facilitated, in addition, the common monitoring nodes with higher connection success speed are selected as the secondary backbone nodes, the communication capability of the common monitoring nodes can be reflected to a certain extent, and the stability of data transmission is higher when the common monitoring nodes are used as the secondary backbone nodes.
The present invention in a preferred example may be further configured to: the on-site monitoring wireless sensor network further comprises an information storage device, wherein the information storage device comprises:
the communication module is used for being in communication connection with the information monitoring center and all the sensor nodes;
the node position storage module is used for storing the number information of common monitoring nodes, backbone nodes and secondary backbone nodes in each monitoring subarea, wherein the numbers of the sensor nodes in each monitoring subarea are different from each other;
a node position conversion module connected with the communication module and controlled by the control signal sent by the information monitoring center; the module comprises:
giving the number information of the secondary backbone nodes stored in the node position storage module a first conversion unit increased by 1 according to a single character position,
or the number information of the secondary backbone nodes stored in the node position storage module is given to the second conversion unit minus 1 according to the position of a single character;
the information-based supervision center is also connected with a node display device which is used for displaying the current positions of the backbone nodes and the secondary backbone nodes in each monitoring subarea on a display screen according to the storage state in the node position storage module.
By adopting the technical scheme, the position of the secondary backbone node can be manually adjusted, so that a worker can adaptively adjust the secondary backbone node according to actual conditions under complex working conditions.
The present invention in a preferred example may be further configured to: the node position storage module also stores address information of the sink nodes and each sensor node; and the communication module is used for acquiring the address information of the aggregation node and the common monitoring node corresponding to the secondary backbone node stored in the node position storage module when the setting of the secondary backbone node is finished, forming contrast correction data and sending the contrast correction data to the set secondary backbone node.
By adopting the technical scheme, the accuracy and the quantity of the connection nodes of the established secondary backbone nodes can be corrected, and the integrity and the accuracy of the wireless sensor network can be ensured.
The present invention in a preferred example may be further configured to: the information storage device also comprises a transfer matching module; the transit matching module is used for configuring the common monitoring node B as a transit node for bridging data transmission between the common monitoring node A and the corresponding backbone node or the secondary backbone node when the common monitoring node A loses communication with the corresponding backbone node or the secondary backbone node or the communication quality between the common monitoring node A and the corresponding backbone node or the secondary backbone node is lower than a preset communication quality threshold; the common monitoring node A and the common monitoring node B are in the same monitoring sub-area and correspond to the same backbone node or the same secondary backbone node.
By adopting the technical scheme, when the communication quality of a certain common monitoring node and the corresponding backbone node or the secondary backbone node is poor or the communication is lost, the communication with the corresponding backbone node or the secondary backbone node can be tried to be established continuously through the transit node, so that the stability of data transmission is ensured.
The present invention in a preferred example may be further configured to: when the ordinary monitoring node A does not receive response information within a set time threshold range after sending data to the corresponding backbone node or the secondary backbone node, determining that the ordinary monitoring node A and the corresponding backbone node or the secondary backbone node lose communication; when the packet loss rate of data transmission between the common monitoring node A and the corresponding backbone node or the secondary backbone node is greater than a preset packet loss rate threshold or the bit error rate is greater than a preset bit error rate threshold, it is determined that the communication quality between the common monitoring node A and the corresponding backbone node or the secondary backbone node is lower than a preset communication quality threshold.
By adopting the technical scheme, whether the common monitoring node A loses contact with the corresponding backbone node or the secondary backbone node or the communication quality is poor can be judged quickly and accurately.
The present invention in a preferred example may be further configured to: the electric power construction site informatization supervision system further comprises a supervision mobile terminal in communication connection with the informatization supervision center, wherein a display module used for displaying a matrix page is arranged on the supervision mobile terminal, and the matrix page comprises a plurality of rectangular blocks in one-to-one correspondence with the monitoring sub-regions; the display module is used for displaying a type of alarm information in a corresponding rectangular block on the matrix page when detecting that the electric power construction site information corresponding to a certain monitoring subregion exceeds a set alarm range.
By adopting the technical scheme, when the electric construction site information detected by a certain sensor node in a certain monitoring subregion exceeds the set warning range, a type of alarm information can be displayed in the corresponding rectangular block on the matrix page, so that the instantaneity of abnormal notification is ensured, and the working personnel can be helped to quickly process the abnormal condition.
The present invention in a preferred example may be further configured to: each rectangular block on the matrix page is divided into a plurality of subunits; the sub-units correspond to the sensor nodes in the monitoring sub-areas one to one and are used for displaying second-class alarm information when the electric construction site information detected by the corresponding sensor nodes exceeds a set warning range.
By adopting the technical scheme, the subunits correspond to the sensor nodes in the monitoring sub-areas one by one, and the subunits are matched with the rectangular blocks to form a two-stage reminding mechanism, so that a worker can quickly correspond to the abnormal areas and the sensor positions when the abnormality occurs.
The present invention in a preferred example may be further configured to: the information-based supervision center comprises a priority management module, and the priority management module is used for setting the processing priority of the electric power construction site information corresponding to each monitored sub-area.
By adopting the technical scheme, the electric power construction site information of the whole electric power construction site monitoring area can be processed in a grading manner, so that the information processing priority of a key area is improved, and the supervision efficiency and the supervision effect are ensured.
The present invention in a preferred example may be further configured to: the information monitoring center comprises an attendance management module and a notification module; the attendance management module is used for collecting attendance information of field supervision personnel and storing the attendance information; the notification module is used for sending an alarm notification message to the intelligent terminal of the corresponding person according to the attendance information stored in the attendance management module when the electric construction site information detected by the site monitoring wireless sensor network exceeds the set warning range.
Through adopting above-mentioned technical scheme, when unusual taking place, can be according to the staff that present attendance condition sent the warning notice information to correspond, it cooperatees with rectangular block, rectangular block interior subunit and has formed tertiary warning mechanism, helps making the staff learn the message fast and correspond the region and the sensor position that unusual take place when unusual more.
In summary, the invention includes at least one of the following beneficial technical effects:
1. by configuring one backbone node and one secondary backbone node in each monitoring sub-area, the load pressure of the backbone nodes is greatly relieved, and the stability of sensor data transmission in the informatization supervision of the power construction site is improved; specifically, when the number of common monitoring nodes which are in communication connection with backbone nodes in a monitoring sub-area reaches N, one common monitoring node is selected from the N common monitoring nodes which are in communication connection with the backbone nodes and is configured as a secondary backbone node, and other common monitoring nodes exceeding the N number are communicated with the corresponding secondary backbone nodes;
2. through the arrangement of the numbering module and the information storage device, the system can automatically screen common monitoring nodes serving as secondary backbone nodes according to the successful connection time and the serial numbers of the sensor nodes, and can also provide for workers to manually adjust the secondary backbone nodes through the information storage device, so that the working conditions of a power construction site are better met;
3. through the arrangement of the supervision mobile terminal, the rectangular block, the subunits, the attendance management module and the notification module, when an abnormality occurs, the notification module can send alarm notification information to corresponding workers according to the current attendance condition, the mechanism is matched with the display mechanisms of the subunits in the rectangular block and the rectangular block to form a three-level reminding mechanism, the three-level reminding mechanism is helpful for enabling the workers to quickly learn information when the abnormality occurs, and the three-level reminding mechanism can quickly correspond to the area where the abnormality occurs and the position of the sensor node.
Drawings
FIG. 1 is a block diagram of a power construction site informatization supervision system based on a wireless sensor network;
FIG. 2 is a block diagram of the structure of an information storage device;
fig. 3 is a schematic structural diagram for embodying a matrix page structure on the mobile terminal.
In the figure, 1, an information monitoring center; 11. a priority management module; 12. an attendance management module; 13. a notification module; 2. monitoring a wireless sensor network on site; 21. a numbering module; 22. an information storage device; 23. a communication module; 24. a node position storage module; 25. a node position conversion module; 26. a first conversion unit; 27. a second transform unit; 28. a transfer matching module; 3. a node display device; 4. managing the mobile terminal; 41. a display module; 42. a rectangular block; 43. a subunit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
Referring to fig. 1, the wireless sensor network-based power construction site informatization supervision system disclosed by the invention comprises an informatization supervision center 1 and a site monitoring wireless sensor network 2. The field monitoring wireless sensor network 2 includes a plurality of sensor nodes deployed in a set monitoring area of the power construction field and a plurality of virtual monitoring sub-areas divided according to the monitoring area of the power construction field. One of the sensor nodes in each monitoring subarea is configured as a backbone node, and the rest of the sensor nodes are common monitoring nodes.
The on-site monitoring wireless sensor network 2 further comprises aggregation nodes which are used for collecting the electric power construction site information aggregated by the backbone nodes in real time and sending the information to the information monitoring center 1 for display. A load quantity threshold M and a preprocessing quantity threshold N are preset in each backbone node, wherein N is more than M and less than T, and T is the total number of common monitoring nodes in a monitoring sub-area to which the corresponding backbone node belongs.
Each backbone node forms a communication network in the communication range of the backbone node, and each common monitoring node is communicated with the backbone nodes in the monitoring subareas to which the common monitoring node belongs. Taking one of the backbone nodes as an example, when the number of the common monitoring nodes in communication connection with the backbone node reaches N, the backbone node selects one common monitoring node from N common monitoring nodes which have established communication connection in the monitoring subarea to which the backbone node belongs and configures as a secondary backbone node for sending data to the aggregation node; when the number of the common monitoring nodes in communication connection with the backbone node reaches M, the backbone node sends a trigger signal which enables the secondary backbone node to form a communication network in the communication range of the backbone node to the corresponding secondary backbone node, and the remaining common monitoring nodes in the monitoring subarea to which the backbone node belongs are all communicated with the secondary backbone node.
Referring to fig. 2, the on-site monitoring wireless sensor network 2 further includes a numbering module 21, and the numbering module 21 is configured to sequentially number the sensor nodes in each monitoring sub-area. And when a plurality of common monitoring nodes with the highest and consistent connection speed are provided, one common monitoring node with the smallest serial number is preferentially selected as the secondary backbone node.
Referring to fig. 1 and 2, the on-site monitoring wireless sensor network 2 further includes an information storage device 22, the information storage device 22 includes a communication module 23, a node position storage module 24, and a node position transformation module 25, and the node position transformation module 25 includes a first transformation unit 26 and a second transformation unit 27. The communication module 23 is used for communicating with the information monitoring center 1 and all the sensor nodes. The node position storage module 24 is configured to store number information of the common monitoring nodes, the backbone nodes, and the secondary backbone nodes in each monitoring sub-area. The node position conversion module 25 is connected to the communication module 23 and controlled by a control signal transmitted from the information monitoring center 1, the first conversion unit 26 is configured to increase the number information of the secondary backbone node stored in the node position storage module 24 by 1 according to a single character position, and the second conversion unit 27 is configured to decrease the number information of the secondary backbone node stored in the node position storage module 24 by 1 according to a single character position.
Referring to fig. 1 and 2, the information-based supervision center 1 is further connected to a node display device 3, and the node display device 3 displays the current numbers and the current positions of the backbone nodes and the secondary backbone nodes in each monitoring sub-area on a display screen according to the storage state in the node position storage module 24. The node position storage module 24 further stores address information of the sink node and each sensor node, and the communication module 23 is configured to, when the setting of the secondary backbone node is completed, obtain the address information of the sink node stored in the node position storage module 24 and the address information of the common monitoring node corresponding to the secondary backbone node, form contrast correction data, and send the contrast correction data to the set secondary backbone node, so that the secondary backbone node can perform accuracy correction and quantity correction of the connection nodes.
Referring to fig. 2, the information storage device 22 further includes a relay matching module 28. The relay matching module 28 is configured to configure the common monitoring node B as a relay node for bridging data transmission between the common monitoring node a and the corresponding backbone node or the secondary backbone node when the common monitoring node a loses communication with the corresponding backbone node or the secondary backbone node, or when the communication quality between the common monitoring node a and the corresponding backbone node or the secondary backbone node is lower than a preset communication quality threshold. The common monitoring node A and the common monitoring node B are located in the same monitoring subarea and correspond to the same backbone node or the same secondary backbone node, that is, if the common monitoring node A is connected with a secondary backbone node in the monitoring subarea, the common monitoring node B is also a common monitoring point connected with the secondary backbone node, so that the common monitoring node A still sends data to the secondary backbone node, the load of the backbone node is not increased, and the stability of data transmission of the backbone node is ensured.
It should be noted that, when the ordinary monitoring node a does not receive the response information within the set time threshold range after sending data to the corresponding backbone node or the secondary backbone node, it is determined that the ordinary monitoring node a loses communication with the corresponding backbone node or the secondary backbone node. When the packet loss rate of data transmission between the common monitoring node A and the corresponding backbone node or the secondary backbone node is greater than a preset packet loss rate threshold or the bit error rate is greater than a preset bit error rate threshold, it is determined that the communication quality between the common monitoring node A and the corresponding backbone node or the secondary backbone node is lower than a preset communication quality threshold.
Referring to fig. 1, the power construction site informatization supervision system further comprises a supervision mobile terminal 4 in communication connection with the informatization supervision center 1, and a display module 41 for displaying a matrix page is arranged on the supervision mobile terminal 4. With reference to fig. 3, the matrix page includes a plurality of rectangular blocks 42 corresponding to the monitoring sub-regions one to one, and the display module 41 is configured to display a type of alarm information in the corresponding rectangular block 42 on the matrix page when detecting that the electric power construction site information corresponding to a certain monitoring sub-region exceeds a set alarm range. In this embodiment, one type of alarm information is that the rectangular block 42 is changed to, for example, a red warning color, that the border of the rectangular block 42 is changed in color, or that a corresponding warning indication pattern is displayed in the rectangular block 42.
Referring to fig. 3, each rectangular block 42 on the matrix page is divided into a plurality of sub-units 43, and the sub-units 43 correspond to the sensor nodes in the corresponding monitoring sub-areas one by one. When the electric construction site information detected by a certain sensor node in a certain monitoring sub-area exceeds a set warning range, the corresponding sub-unit 43 displays second-type warning information. In this embodiment, the second type of alarm information is that the subunit 43 changes to a warning color such as yellow, or the subunit 43 performs a blinking display.
Referring to fig. 1, the informatization monitoring center 1 includes an attendance management module 12 and a notification module 13. The attendance management module 12 is used for collecting the attendance information of the field supervision personnel and storing the attendance information. The notification module 13 is configured to send an alarm notification message to the intelligent terminal of the corresponding person according to the check-in information stored in the attendance management module 12 when the electric power construction site information detected by the site monitoring wireless sensor network 2 exceeds the set warning range, where the alarm notification message includes information of the monitoring sub-area where the abnormality occurs and abnormal data information.
Referring to fig. 1, in order to ensure that the informatization supervision center 1 can effectively and quickly process the information of the electric power construction site, a priority management module 11 is further disposed in the informatization supervision center 1, and the priority management module 11 is used for setting the processing priority of the information of the electric power construction site corresponding to each monitored sub-area. With reference to fig. 3, the monitoring sub-area corresponding to each rectangular block 42 is configured with priorities similar to 1, 2, 3, and 4, where 1 is the highest priority 1, and the informatization supervision center 1 preferentially analyzes and processes the information of the electric power construction site in the monitoring sub-area with the priority 1.
The implementation principle of the above embodiment is as follows:
in this embodiment, a data transmission mechanism of the backbone node, the secondary backbone node, and the transit node is provided, so that the load pressure at the top end of the backbone node is reduced, and the stability of data transmission between sensor nodes in each monitoring sub-area in the field monitoring wireless sensor network 2 is ensured. Specifically, taking one of the backbone nodes as an example, when the number of the common monitoring nodes in communication connection with the backbone node reaches N, the backbone node selects one common monitoring node from the N common monitoring nodes which have established communication connection in the monitoring sub-area to configure as a secondary backbone node for sending data to the sink node; when the number of the common monitoring nodes in communication connection with the backbone node reaches M, the backbone node sends a trigger signal which enables the secondary backbone node to form a communication network in the communication range of the backbone node to the corresponding secondary backbone node, and the remaining common monitoring nodes in the monitoring subarea to which the backbone node belongs are communicated with the secondary backbone node.
On the other hand, due to the arrangement of the node display device 3 and the supervision mobile terminal 4, a user can see not only the node position and the data condition of the power construction site at the information-based supervision center 1, but also the node condition in each monitoring sub-area through the matrix page of the supervision mobile terminal 4. When the electric construction site information detected by a certain sensor node in a certain monitoring subregion exceeds a set warning range, one-class warning information is displayed in the corresponding rectangular block 42 on the matrix page, the corresponding subunit 43 in the rectangular block 42 displays two-class warning information, and the notification module 13 also sends a warning notification message to the intelligent terminal of a corresponding person according to the sign-in information stored in the attendance management module 12, so that the effect of three-level warning is achieved, and the instantaneity of abnormal notification and the effectiveness of informatization supervision are ensured.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. An electric power construction site informatization management system based on a wireless sensor network comprises an informatization management center (1) and a site monitoring wireless sensor network (2), wherein the site monitoring wireless sensor network (2) comprises a plurality of sensor nodes deployed in a set electric power construction site monitoring area and a plurality of virtual monitoring sub-areas divided according to the electric power construction site monitoring area; one of the sensor nodes in each monitoring subarea is configured as a backbone node, and the rest sensor nodes are common monitoring nodes; the on-site monitoring wireless sensor network (2) also comprises a sink node which is used for collecting the electric power construction site information gathered by the backbone nodes in real time and sending the information to the information monitoring center (1) for displaying; the method is characterized in that a load number threshold M and a preprocessing number threshold N are arranged in each backbone node, wherein the load number threshold M is smaller than the total number T of common monitoring nodes in a monitoring subarea to which the backbone node belongs, and the preprocessing number threshold N is smaller than the load number threshold M;
each backbone node forms a communication network in the communication range of the backbone node, and each common monitoring node is communicated with the backbone nodes in the monitoring subareas to which the common monitoring node belongs; when the number of the common monitoring nodes in communication connection with the backbone nodes reaches N, the backbone nodes select a secondary backbone node configured to send data to a sink node from the N common monitoring nodes with established communication connection; and the backbone nodes are also used for sending a trigger signal which enables the secondary backbone nodes to form a communication network in the communication range of the secondary backbone nodes to the secondary backbone nodes when the number of the common monitoring nodes in communication connection reaches M, and the remaining common monitoring nodes in the monitoring subarea to which the backbone nodes belong are communicated with the secondary backbone nodes.
2. The wireless sensor network-based power construction site informatization supervision system according to claim 1, characterized in that the site monitoring wireless sensor network (2) further comprises a numbering module (21), wherein the numbering module (21) is configured for sequentially numbering the sensor nodes in each monitoring subarea; the selecting, by the backbone node, one secondary backbone node configured to send data to the aggregation node from the N common monitoring nodes with which communication connection is established specifically includes:
and the backbone nodes select a secondary backbone node configured to send data to the sink node from the N common monitoring nodes which establish communication connection according to the successful connection time and the serial number of the sensor node.
3. The wireless sensor network-based power construction site informatization supervision system according to claim 1, characterized in that the site monitoring wireless sensor network (2) further comprises an information storage device (22), and the information storage device (22) comprises:
the communication module (23) is used for being in communication connection with the information monitoring center (1) and all the sensor nodes;
a node position storage module (24) for storing the number information of the common monitoring nodes, the backbone nodes and the secondary backbone nodes in each monitoring subarea, wherein the numbers of the sensor nodes in each monitoring subarea are different from each other;
a node position conversion module (25) connected with the communication module (23) and controlled by a control signal sent by the information monitoring center (1); the module comprises:
a first conversion unit (26) for adding 1 to the number information of the secondary backbone nodes stored in the node position storage module (24) by a single character position,
or a second conversion unit (27) for giving minus 1 to the number information of the secondary backbone nodes stored in the node position storage module (24) according to the position of a single character;
the information monitoring center (1) is also connected with a node display device (3) which is used for displaying the current positions of the backbone nodes and the secondary backbone nodes in each monitoring subarea on a display screen according to the storage state in the node position storage module (24).
4. The wireless sensor network-based power construction site informatization supervision system according to claim 3, wherein the node position storage module (24) further stores address information of aggregation nodes and each sensor node; the communication module (23) is configured to, when the setting of the secondary backbone node is completed, acquire address information of the aggregation node and the common monitoring node corresponding to the secondary backbone node stored in the node position storage module (24), form contrast correction data, and send the contrast correction data to the set secondary backbone node.
5. The wireless sensor network-based power construction site informatization supervision system according to claim 1, characterized in that the information storage device (22) further comprises a transit matching module (28); the transit matching module (28) is configured to configure the common monitoring node B as a transit node for bridging data transmission between the common monitoring node a and the corresponding backbone node or the secondary backbone node when the common monitoring node a loses communication with the corresponding backbone node or the secondary backbone node or the communication quality between the common monitoring node a and the corresponding backbone node or the secondary backbone node is lower than a preset communication quality threshold; the common monitoring node A and the common monitoring node B are in the same monitoring sub-area and correspond to the same backbone node or the same secondary backbone node.
6. The wireless sensor network-based power construction site informatization supervision system according to claim 5, wherein when a common monitoring node A does not receive response information within a set time threshold range after sending data to a corresponding backbone node or a secondary backbone node, it is determined that the common monitoring node A loses communication with the corresponding backbone node or the secondary backbone node; when the packet loss rate of data transmission between the common monitoring node A and the corresponding backbone node or the secondary backbone node is greater than a preset packet loss rate threshold or the bit error rate is greater than a preset bit error rate threshold, it is determined that the communication quality between the common monitoring node A and the corresponding backbone node or the secondary backbone node is lower than a preset communication quality threshold.
7. The wireless sensor network-based power construction site informatization supervision system according to claim 1, characterized in that the power construction site informatization supervision system further comprises a supervision mobile terminal (4) in communication connection with the informatization supervision center (1), wherein a display module (41) for displaying a matrix page is arranged on the supervision mobile terminal (4), and the matrix page comprises a plurality of rectangular blocks (42) in one-to-one correspondence with the monitoring sub-regions; the display module (41) is used for displaying a type of alarm information in the corresponding rectangular block (42) on the matrix page when detecting that the electric construction site information corresponding to a certain monitoring subregion exceeds a set alarm range.
8. The wireless sensor network-based power construction site informatization supervision system according to claim 7, characterized in that each rectangular block (42) on the matrix page is divided into a plurality of sub-units (43); and the subunits (43) correspond to the sensor nodes in the monitoring sub-areas one by one and are used for displaying second-class alarm information when the electric construction site information detected by the corresponding sensor nodes exceeds a set warning range.
9. The wireless sensor network-based power construction site informatization supervision system according to claim 7, characterized in that the informatization supervision center (1) comprises a priority management module (11), and the priority management module (11) is used for setting the processing priority of the power construction site information corresponding to each monitored sub-area.
10. The wireless sensor network-based power construction site informatization supervision system according to claim 7, characterized in that the informatization supervision center (1) comprises an attendance management module (12) and a notification module (13); the attendance management module (12) is used for collecting attendance information of field supervisors and storing the attendance information; the notification module (13) is used for sending an alarm notification message to the intelligent terminal of the corresponding person according to the attendance information stored in the attendance management module (12) when the electric construction site information detected by the site monitoring wireless sensor network (2) exceeds a set warning range.
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