CN112903161A - Wireless tension sensor special for power transmission line tower assembling construction and use method thereof - Google Patents
Wireless tension sensor special for power transmission line tower assembling construction and use method thereof Download PDFInfo
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- CN112903161A CN112903161A CN202110071819.7A CN202110071819A CN112903161A CN 112903161 A CN112903161 A CN 112903161A CN 202110071819 A CN202110071819 A CN 202110071819A CN 112903161 A CN112903161 A CN 112903161A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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Abstract
A wireless tension sensor special for power transmission line tower assembling construction and a using method thereof are provided, wherein the wireless tension sensor comprises a sensor body, and a first sealing box and a second sealing box are respectively and fixedly arranged on two sides of the sensor body; the sensor body is provided with a tension sensing unit, a digital-to-analog conversion module, a data processing module and a power management module. An isolation module and a data transmission module are arranged in the first sealing box. And a power supply module is arranged in the second sealing box. The sensor body, the data processing module and the data remote transmission module are sealed and integrated into a whole, the collected tension data are transmitted in real time by using a wireless communication technology, the practical construction of the power transmission line tower assembly is combined, and the tension data are accurately sensed in real time on the basis of not increasing the workload of workers by using the U-shaped ring, the steel wire rope clamping head and the secondary protection rope. The method can effectively solve the technical problem that the stress state of the stay wire rope cannot be accurately, simply and conveniently monitored in the existing power transmission iron tower assembling process.
Description
Technical Field
The invention relates to the technical field of tower construction of overhead transmission lines, in particular to a wireless tension sensor special for tower construction of transmission lines and a using method thereof.
Background
Along with the large-scale construction of high-voltage-grade power transmission lines, the construction quality and safety of the power transmission line iron tower assembly are very important. Particularly, in the process of assembling and constructing the iron tower of the power transmission line, the stress state of each rope plays a decisive role in the safety of the assembling and constructing process. Therefore, the stress state of the tower assembling construction rope is accurately monitored, and the method has important significance for guaranteeing the safety of the tower assembling construction of the overhead transmission line.
At present, in the assembling process of a power transmission tower, constructors generally lift holding poles and tower pieces by virtue of construction experience, so that the stress of ropes in the assembling process is controlled. Due to the fact that the actual construction site environment is complex, a plurality of stress points need to be monitored by a constructor at the same time, the experience method is obviously greatly influenced by subjective factors of the constructor, omission easily occurs, the concrete stress state of each rope is difficult to accurately perceive, and construction faults are prone to frequent occurrence. Such as the construction accidents of pole breakage, tower piece falling and the like in the tower assembling construction process.
Meanwhile, in the assembly construction of the power transmission iron tower adopting the tension sensor, the adopted tension sensor almost adopts a cable to transmit signals, the construction cost is high, the whole wired communication link needs to be checked along the way when fault maintenance is carried out, and a fault point is difficult to find usually. After a user sets a communication network, if new equipment needs to be added due to the requirements of the system, rewiring is needed by using wired transmission, so that the workload is greatly increased, and the waste of funds is caused.
Disclosure of Invention
The technical problem that the stress state of a stay wire rope cannot be accurately, simply and conveniently monitored in the assembling process of the existing power transmission iron tower is solved. The invention provides a wireless tension sensor special for power transmission line tower assembling construction and a using method thereof, which realize real-time and accurate sensing of tension data on the basis of not increasing the workload of workers.
The technical scheme adopted by the invention is as follows:
a wireless tension sensor special for power transmission line tower assembling construction comprises a sensor body, wherein a first sealing box and a second sealing box are fixedly arranged on two sides of the sensor body respectively;
the sensor body is provided with a tension sensing unit, a digital-to-analog conversion module, a data processing module and a power management module;
an isolation module and a data transmission module are arranged in the first sealing box;
a power supply module is arranged in the second sealing box;
the tension sensing unit is connected with the digital-to-analog conversion module, the digital-to-analog conversion module is connected with the data processing module, the data processing module is connected with the isolation module, and the isolation module is connected with the data transmission module;
the power supply module is respectively connected with the tension sensing unit, the digital-to-analog conversion module, the data processing module, the isolation module and the data transmission module through the power management module.
The sensor body comprises a fixing column with a threaded opening and a matched bolt, and the fixing column and the matched bolt are used for fixing the first sealing plate and the second sealing plate on two sides of the sensor body respectively. The first sealing box and the second sealing box are respectively connected and fixed with threaded holes in the first sealing plate and the second sealing plate through bolts.
The sensor comprises a sensor body and is characterized in that a first annular groove and a groove matched with a fixed column are formed in the middle of the sensor body, and round holes are formed in two ends of the sensor body. A second annular groove with the same size as the first annular groove is formed in the center of the first sealing plate and the second sealing plate; and a rubber ring is arranged at the second annular groove and used for sealing and fixing.
The first sealing plate and the second sealing plate are the same in structure, a circuit slot is arranged in the center of one side of the sealing plate, a magnetic suction type female seat is installed in the center corresponding to the other side of the sealing plate, and threaded holes and bolt holes for fixing are formed in the edge positions of the two sides of the sealing plate.
The first sealing box and the second sealing box have the same mechanical structure, one side, close to the sealing plate, of the sealing box is provided with a magnetic suction type pin header, and bolts for fixing are arranged on two sides of the sealing box.
A circular printed circuit board consisting of a digital-to-analog conversion module, a data processing module and a power management module is installed on the middle through hole part of the sensor body. A square printed circuit board consisting of an isolation module and a data transmission module is arranged in the first sealing box. The power supply module comprises a lithium ion battery and a charge-discharge module, and the lithium ion battery is connected with the charge-discharge module.
A use method of a wireless tension sensor special for power transmission line tower assembling construction comprises the following steps:
step 1: on the ground, the sensor body provided with the sealing plate is fixed with the first sealing box and the second sealing box by rotating bolts on the first sealing box and the second sealing box; when the magnetic-type bus bar is installed, the magnetic-type bus bar is looked at and the magnetic-type pin header contacts are seen, so that the open circuit is avoided;
step 2: opening a remote client, checking whether the wireless tension sensor has a display of the number, simultaneously pulling two ends of the tension sensor, checking whether the display number of the remote client is obviously increased, and if the number is not obviously increased on the remote client, immediately carrying out fault detection on the tension sensor and preventing the tension sensor from being used; if the display number of the remote client is increased, the tension sensor is normal;
and step 3: preparing a shackle and a steel wire rope chuck for installation, and checking whether the shackle and the steel wire rope chuck can be normally used; determining the range of a required wireless tension sensor according to the breaking force of a steel wire rope to be detected in the tower assembling construction process, penetrating U-shaped rings matched with the sensor range at round holes at two ends of the wireless tension sensor, penetrating two ends of the steel wire rope to be detected through the U-shaped rings, fixing the folded rope end and the steel wire rope to be detected by using a steel wire rope clamping head, namely connecting the wireless tension sensor between the steel wire ropes to be detected in series;
and 4, step 4: secondary protection ropes are further installed on two sides of the wireless tension sensor;
through the steps, the installation of the wireless tension sensor is completed.
In the step 1, the second sealing box with the power supply module is installed firstly, then the first sealing box with the data transmission module is installed, finally the bolts on the two sides are tightened, the tension sensor is shaken by force continuously, and when the sealing box and the sensor body do not shake, the tension sensor is proved to be assembled completely.
The invention discloses a wireless tension sensor special for power transmission line tower assembling construction and a using method thereof, and has the following beneficial effects:
1) according to the wireless tension sensor special for power transmission line tower assembling construction, the tension sensor body, the data processing module and the data transmission module are packaged into a whole, and the problem that the stress in the existing tower assembling construction process cannot be accurately, simply and conveniently monitored is solved.
2) According to the wireless tension sensor special for power transmission line tower assembling construction, the collected tension data are transmitted in real time by using a wireless communication technology, and the tension data are accurately sensed in real time on the basis of not increasing the workload of workers.
3) The tension sensor in the form of a plate ring is adopted, and meanwhile, a secondary protection rope is installed in the using process, so that the safety of construction tower assembly is guaranteed when the tension state is sensed.
Drawings
Fig. 1 is an overall schematic view of a wireless tension sensor according to the present invention.
Fig. 2 is a schematic structural diagram of the wireless tension sensor of the present invention.
Fig. 3 is a schematic installation diagram of the wireless tension sensor in the using process of the invention.
Fig. 4 is a schematic diagram of the connection of the electrical modules of the wireless tension sensor according to the present invention.
Fig. 5 is a circuit diagram of a data processing module of the wireless tension sensor according to the present invention.
Fig. 6 is a circuit diagram of a digital-to-analog conversion module of the wireless tension sensor according to the present invention.
Fig. 7 is a 3.3V power supply circuit diagram of the power management module of the present invention.
Fig. 8 is a 5V power supply circuit diagram of the power management module of the present invention.
Fig. 9 is a schematic diagram of the connection of the isolation module of the present invention.
Fig. 10 is a circuit diagram of an isolation module of the present invention.
Fig. 11 is a schematic diagram of wireless data transmission according to the present invention.
Fig. 12(1) is a first diagram of a circular printed circuit board composed of a digital-to-analog conversion module, a data processing module and a power supply module according to the present invention;
fig. 12(2) is a second diagram of a circular printed circuit board composed of the digital-to-analog conversion module, the data processing module and the power supply module according to the present invention.
Fig. 13(1) is a first diagram of a square printed circuit board composed of an isolation module and a data transmission module according to the present invention;
fig. 13(2) is a second diagram of a square printed circuit board composed of an isolation module and a data transmission module according to the present invention.
Wherein: 1-a sensor body, 1.1-a circular hole, 1.2-a fixed column, 1.3-a first annular groove and 1.4-a groove;
2-a first sealing plate, 2.1-a small bolt hole, 2.2-a large threaded hole, 2.3-a magnetic suction type female seat, 2.4-a circuit slot and 2.5-a second annular groove;
3-a second sealing plate;
4-a first sealing box, 4.1-a large-head lace aluminum bolt and 4.2-a magnetic suction type pin header;
5-a second sealing box, 6-a shackle, 7-a steel wire rope to be tested, 8-a secondary protection rope and 9-a steel wire rope chuck.
Detailed Description
As shown in fig. 1 and 2, the wireless tension sensor special for power transmission line tower assembly construction comprises a sensor body 1, a first sealing plate 2, a second sealing plate 3, a first sealing box 4 and a second sealing box 5. The sensor body 1 is characterized in that the first sealing plate 2 and the second sealing plate 3 are respectively fixed on two sides of the sensor body 1 through a hexagonal copper column with a threaded hole and a matched bolt. The first sealing box 4 and the second sealing box 5 are respectively connected and fixed with the first sealing plate 2 and the second sealing plate 3 through large-head lace aluminum bolts 4.1 and large threaded holes 2.2.
The outer edges of the middle through holes on two sides of the sensor body 1 are provided with first annular grooves 1.3, the two ends of the sensor body are provided with round holes 1.1 (namely pull rings), and the periphery of the middle part of the sensor body 1 is provided with grooves 1.4 for clamping hexagonal copper columns; similarly, the center positions of one sides of the first sealing plate 2 and the second sealing plate 3 are provided with second annular grooves 2.5 with the same size, and the middle clamps are sealed and fixed by rubber rings.
First closing plate 2, second closing plate 3 have the same structure, and closing plate one side central point puts and is equipped with circuit slot 2.4, and the central point that the closing plate opposite side corresponds puts and installs female seat 2.3 of formula of magnetism absorption, and the both sides border position sets up big screw hole 2.2, little bolt hole 2.1 for fixing.
As shown in fig. 12(1), 12(2), a circular printed circuit board composed of a digital-to-analog conversion module, a data processing module and a power supply module is installed in the middle through hole of the plate-ring type tension sensor body. As shown in fig. 13(1) and 13(2), the first sealed box 4 is provided with a square printed circuit board consisting of an isolation module and a data transmission module. The second sealing box 5 is internally provided with a lithium ion battery pack and a charge-discharge module.
The internal circuit of the wireless tension sensor special for power transmission line tower construction takes a data processing module as a core, a tension sensing unit is connected to the data processing module through a digital-to-analog conversion module, and the data processing module transmits data to a data transmission module through an isolation module, so that the stress of a rope is transmitted to a remote client. The lithium ion battery pack converts the voltage through the power management module so as to supply power to other modules.
Before use, the sensor body 1, the first sealing plate 2 and the second sealing plate 3 are connected and sealed through a sealing ring, a hexagonal copper column and a bolt.
Specifically, each module model:
the tension sensing unit adopts a ZLET-102 type plate ring tension sensor produced by Unionian Chengcheng sensor Limited.
The data processing module uses an STC12LE5616D single chip microcomputer as a processing core, and a specific circuit diagram of the data processing module is shown in fig. 5.
The digital-to-analog conversion module transmits the acquired tension signal data to the data processing module in an IIC communication manner through a 24-bit high-precision digital-to-analog conversion chip ADS1232, and a specific circuit diagram of the digital-to-analog conversion module is shown in fig. 6.
In order to improve the measurement precision and reduce the system power consumption, and simultaneously ensure the compatibility of 5V power supply of an ADS1232 digital-to-analog conversion chip and 3.3V two levels of an STC12LE5616AD singlechip, a level conversion chip TXS0104EPWR is added between a digital-to-analog conversion module and a data processing module, so that the voltage conversion is realized.
The lithium ion battery pack is composed of a 7.4V/50000mah lithium ion battery and a charge-discharge balance circuit board. The sensor and the digital-to-analog conversion module need a 5V power supply for power supply, so that a LP2591AC power supply management chip is adopted to realize the conversion of 7.4V to 5V voltage of the lithium ion battery, and a specific circuit diagram is shown in FIG. 8; the data processing module and the isolation module, i.e., the wireless transmission and transmission, need a 3.3V power supply, so that a texas instruments TPS562200 power management chip is used to implement the conversion of the lithium ion battery from 7.4V to 3.3V, and a specific circuit diagram is shown in fig. 7.
The data transmission module adopts an XBee-PR900HP data transmission station. In order to prevent the data transmission module and the data processing module from generating signal interference to cause integral sensor failure or circuit burnout, an isolation chip ADuM1201 is arranged between the data transmission module and the data processing module.
The remote client is modified by a platinum PIPO X4 industrial flat plate, the receiving end of the XBee-PR900HP data transmission radio station is connected to the USB end of the platinum PIPO X4 industrial flat plate, and a special COM port is set.
A use method of a wireless tension sensor special for power transmission line tower construction comprises the following steps:
step 1: on the ground, the sensor body 1 with the sealing plate mounted thereon is fixed to the sealing box by rotating the large-headed aluminum laced bolt 4.1 on the sealing box. During installation, the contact of the magnetic female seat 2.3 and the magnetic pin header 4.2 is looked at to avoid circuit break, and the second sealing box 5 with the lithium ion battery pack is firstly installed, then the first sealing box 4 with the data transmission module is installed, finally the large-end laced aluminum bolts 4.1 on two sides are tightened, the tension sensor is shaken by force continuously, and when the sealing box and the sensor body 1 do not shake, the tension sensor is proved to be assembled completely;
step 2: open remote client, look over wireless force sensor and have the registration to show, draw simultaneously hard and draw force sensor both ends, look over and show that the registration has obvious increase. If the number of the remote client is not obviously increased, immediately carrying out fault detection on the tension sensor and preventing the tension sensor from being used;
and step 3: a shackle 6 and a wire rope chuck 9 formed of a U-shaped ring for mounting are prepared, and whether or not they can be used normally is checked. Determining the range of a required wireless tension sensor according to the breaking force of a steel wire rope 7 to be detected in the tower assembling construction process, penetrating shackles 6 matched with the tonnage of the sensor range at pull rings at two ends of the wireless tension sensor, penetrating two ends of the steel wire rope 7 to be detected through the shackles 6, fixing the folded rope end and the steel wire rope 7 to be detected by using a steel wire rope clamping head 9, namely connecting the wireless tension sensor between the steel wire ropes 7 to be detected in series;
and 4, step 4: in order to ensure the construction safety, secondary protection ropes 8 are arranged on two sides of the wireless tension sensor. The secondary protection rope 8 has the following specific functions: when the sensor body 1 is broken due to overload or aging, the sensor body 1 is stressed instead, so that safety accidents caused by the loss of force of the pull wire are prevented.
In summary, according to the wireless tension sensor special for power transmission line tower assembly construction provided by the invention, the sensor body 1, the data processing module and the data transmission module are packaged into a whole, so that the stability of the sensor in a severe construction environment is ensured. The tension sensor matching use method combines the practical power transmission line tower assembling construction, utilizes the U-shaped ring, the steel wire rope clamping head and the secondary protection rope, solves the problem that the stress in the existing tower assembling construction process cannot be accurately, simply and conveniently monitored on the basis of not increasing the workload of workers, and realizes real-time and accurate sensing of tension data. The sensor can be used for measuring the stress of the rope in the construction of the power transmission line tower, and can also be used in the field of tension monitoring of logistics containers, tower cranes, laboratory force measuring equipment and the like.
Claims (10)
1. The utility model provides a special wireless tension sensor of transmission line group tower construction, includes sensor body (1), its characterized in that: a first sealing box (4) and a second sealing box (5) are respectively fixedly arranged on two sides of the sensor body (1);
the sensor body (1) is provided with a tension sensing unit, a digital-to-analog conversion module, a data processing module and a power management module;
an isolation module and a data transmission module are arranged in the first sealing box (4);
a power supply module is arranged in the second seal box (5);
the tension sensing unit is connected with the digital-to-analog conversion module, the digital-to-analog conversion module is connected with the data processing module, the data processing module is connected with the isolation module, and the isolation module is connected with the data transmission module;
the power supply module is respectively connected with the tension sensing unit, the digital-to-analog conversion module, the data processing module, the isolation module and the data transmission module through the power management module.
2. The wireless tension sensor special for power transmission line tower assembling construction according to claim 1, characterized in that: the sensor body (1) comprises a fixing column (1.2) with a threaded opening and a matched bolt, and the fixing column (1.2) and the matched bolt are used for fixing the first sealing plate (2) and the second sealing plate (3) on two sides of the sensor body (1) respectively.
3. The first sealing box (4) and the second sealing box (5) are fixedly connected with threaded holes formed in the first sealing plate (2) and the second sealing plate (3) through bolts respectively.
4. The wireless tension sensor special for power transmission line tower assembling construction according to claim 1, characterized in that: a first annular groove (1.3) and a groove (1.4) matched with the fixing column (1.2) are formed in the middle of the sensor body (1), and round holes (1.1) are formed in two ends of the sensor body (1);
a second annular groove (2.5) with the same size as the first annular groove (1.3) is arranged at the central positions of the first sealing plate (2) and the second sealing plate (3); a rubber ring is arranged at the second annular groove (2.5) for sealing and fixing.
5. The wireless tension sensor special for power transmission line tower assembling construction according to claim 2, characterized in that: the structure of the first sealing plate (2) and the second sealing plate (3) is the same, a circuit slot (2.4) is arranged in the center of one side of the sealing plate, a magnetic-type female seat (2.3) is installed in the center corresponding to the other side of the sealing plate, and threaded holes and bolt holes for fixing are formed in the edge positions of the two sides of the sealing plate.
6. The wireless tension sensor special for power transmission line tower assembling construction according to claim 2, characterized in that: the first sealing box (4) and the second sealing box (5) have the same mechanical structure, one side, close to the sealing plate, of the sealing box is provided with a magnetic suction type pin header (4.2), and bolts for fixing are arranged on two sides of the sealing box.
7. The wireless tension sensor special for power transmission line tower assembling construction according to claim 1, characterized in that: a circular printed circuit board consisting of a digital-to-analog conversion module, a data processing module and a power management module is arranged at the middle through hole part of the sensor body (1);
a square printed circuit board consisting of an isolation module and a data transmission module is arranged in the first sealing box (4).
8. The wireless tension sensor special for power transmission line tower assembling construction according to claim 1, characterized in that: the power supply module comprises a lithium ion battery and a charge-discharge module, and the lithium ion battery is connected with the charge-discharge module.
9. A use method of a wireless tension sensor special for power transmission line tower construction is characterized by comprising the following steps:
step 1: on the ground, the sensor body (1) provided with the sealing plate is fixed with the first sealing box and the second sealing box by rotating bolts on the first sealing box and the second sealing box; when the magnetic type bus bar is installed, the contact of the quasi magnetic type bus bar (2.3) and the magnetic type pin header (4.2) is seen, so that the circuit break is avoided;
step 2: opening a remote client, checking whether the wireless tension sensor has a display of the number, simultaneously pulling two ends of the tension sensor, checking whether the display number of the remote client is obviously increased, and if the number is not obviously increased on the remote client, immediately carrying out fault detection on the tension sensor and preventing the tension sensor from being used; if the display number of the remote client is increased, the tension sensor is normal;
and step 3: preparing a shackle (6) and a steel wire rope clamping head (9) for installation, and checking whether the steel wire rope clamping head can be normally used; determining the range of a required wireless tension sensor according to the breaking force of a steel wire rope (7) to be detected in the tower assembling construction process, penetrating U-shaped rings matched with the sensor range at round holes (1.1) at two ends of the wireless tension sensor, penetrating two ends of the steel wire rope (7) to be detected through the U-shaped rings, fixing the folded rope end and the steel wire rope (7) to be detected by using a steel wire rope clamping head (9), namely connecting the wireless tension sensor in series between the steel wire ropes (7) to be detected;
and 4, step 4: secondary protection ropes (8) are further installed on two sides of the wireless tension sensor;
through the steps, the installation of the wireless tension sensor is completed.
10. The use method of the wireless tension sensor special for the power transmission line tower assembling construction according to claim 1, characterized in that: in the step 1, a second sealing box (5) with a power supply module is installed firstly, then a first sealing box (4) with a data transmission module is installed, finally bolts on two sides are tightened, the tension sensor is shaken forcefully, and when the sealing box and the sensor body (1) do not shake, the tension sensor is proved to be assembled completely.
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| CN202110071819.7A CN112903161B (en) | 2021-01-19 | 2021-01-19 | Wireless tension sensor special for power transmission line tower assembling construction and use method thereof |
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| CN202110071819.7A CN112903161B (en) | 2021-01-19 | 2021-01-19 | Wireless tension sensor special for power transmission line tower assembling construction and use method thereof |
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| CN112903161B CN112903161B (en) | 2022-05-06 |
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| CN115014616A (en) * | 2022-05-30 | 2022-09-06 | 武汉理工大学 | Steel cable tension field measurement system based on wireless data transmission |
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