阅读说明：本技术 输电塔塔体杆件监测装置 (Power transmission tower body rod piece monitoring device ) 是由 朱瑞 李凯 李宾皑 赵文彬 姜恒 薛敏 沈文豪 袁斌霞 王道累 于 2021-08-26 设计创作，主要内容包括：本发明涉及一种输电塔塔体杆件监测装置,包括固定防护单元和监测数据采集单元,固定防护单元包括脚钉卡扣组件、监测杆件和紧固件,脚钉卡扣组件固定连接于输电塔塔体杆件上固有的脚钉固定节点上,中空圆柱形监测杆件螺旋插入脚钉卡扣组件中固定,监测数据采集单元固定密封于监测杆件内,监测杆件与输电塔塔体杆件相对位置固定,监测数据采集单元采集输电塔塔体杆件的应变数据、倾斜数据、位置数据无线传输至由通信终端、NB-IoT基站、NB-IoT核心网、IoT云平台和应用服务器组成通信网络。实时采集杆件的位移、倾斜度数据,实时掌握发生自然灾害时输电塔结构杆件的破坏情况,实现智能化监测,避免人工检测费时费力及检测人员人身安全遭到威胁问题。(The invention relates to a power transmission tower body rod piece monitoring device which comprises a fixed protection unit and a monitoring data acquisition unit, wherein the fixed protection unit comprises a pin buckle assembly, a monitoring rod piece and a fastening piece, the pin buckle assembly is fixedly connected to an inherent pin fixing node on a power transmission tower body rod piece, a hollow cylindrical monitoring rod piece is spirally inserted into the pin buckle assembly for fixing, the monitoring data acquisition unit is fixedly sealed in the monitoring rod piece, the monitoring rod piece and the power transmission tower body rod piece are fixed in relative positions, and the monitoring data acquisition unit acquires strain data, inclination data and position data of the power transmission tower body rod piece and wirelessly transmits the strain data, the inclination data and the position data to a communication network consisting of a communication terminal, an NB-IoT base station, an NB-IoT core network, an IoT cloud platform and an application server. The displacement of collecting the member in real time, gradient data, the destruction condition of power transmission tower structure member when taking place natural disasters is mastered in real time, realizes intelligent monitoring, avoids artifical measuring to waste time and energy and detection personnel personal safety to suffer the threat problem.)

1. The utility model provides a transmission tower body member monitoring devices, a serial communication port, including fixed protection unit and monitoring data acquisition unit, fixed protection unit includes foot nail buckle subassembly, monitoring member and fastener, foot nail buckle subassembly fixed connection is on the intrinsic foot nail fixed node on transmission tower body member, hollow cylindrical monitoring member spiral inserts in the foot nail buckle subassembly fixed, monitoring data acquisition unit fixed seal is in monitoring member, monitoring member and transmission tower body member relative position are fixed, monitoring data acquisition unit gathers the strain data of transmission tower body member, the slope data, position data wireless transmission to by communication terminal, NB-IoT basic station, NB-IoT core network, IoT cloud platform and application server constitute communication network.

2. The device for monitoring the tower body rod of the power transmission tower according to claim 1, wherein the two monitoring rods are in a group, the two monitoring rods are locked by a distance adjusting loose joint, and the other two ends of the two monitoring rods are respectively fixed on the upper and lower pin fixing nodes of the tower body rod of the power transmission tower through pin buckle assemblies.

3. The device for monitoring the tower body and the rod of the power transmission tower according to claim 1, wherein the output power of the power transmission tower is fed into an internal voltage reduction and voltage stabilization circuit in the monitoring data acquisition unit, and the voltage reduction and voltage stabilization circuit outputs one way to a super capacitor as a standby power supply and the other way to supply power for the monitoring data acquisition unit.

4. The device for monitoring the tower member of the power transmission tower according to claim 3, wherein all the components of the monitoring data acquisition unit are arranged on the same PCB, the monitoring data acquisition unit comprises a voltage reduction and voltage stabilization chip for processing power supply, a piezoelectric ceramic vibration exciter and a piezoelectric ceramic strain gauge for monitoring the strain of the tower member of the power transmission tower, a wireless transmission module for transmitting data outwards, a three-axis acceleration sensor for acquiring the inclination angle and the position, and a Beidou positioner, and the monitoring data acquisition unit is packaged, inserted into the monitoring member, and then is fixed in the monitoring member by glue filling.

5. The device for monitoring the tower body and the rod of the transmission tower according to claim 4, wherein the piezoelectric ceramic exciter sends an external load excitation signal to the transmission tower rod, the excitation signal is propagated in the transmission tower rod, and the piezoelectric ceramic strain gauge of the transmission tower rod collects strain response data of the rod; real-time excitation signals sent by the piezoelectric ceramic vibration exciter and real-time strain response data received by the piezoelectric ceramic strain gauge are transmitted to the wireless transmission module and immediately uploaded to the terminal.

6. The power transmission tower body member monitoring device according to any one of claims 1 to 5, wherein the foot nail buckle assembly comprises a buckle plate and an insertion plate, a convex surface is arranged on the buckle plate, the buckle plate is buckled on one side of a foot nail fixing node, the size of the convex surface is matched with the space of the foot nail fixing node, two parallel vertical rods are arranged on the insertion plate, the insertion plate is buckled on the other side of the foot nail fixing node far away from the buckle plate, the two parallel vertical rods penetrate out after being inserted into a round hole in the buckle plate, and nuts are additionally arranged for fixing.

7. The device for monitoring the tower member of the power transmission tower according to claim 6, wherein the pin fastening assembly fixes the degree of freedom of the monitoring member spirally inserted into the pin fastening assembly, and the plate thickness of the fastening plate and the inserting plate and the diameter of the two vertical rods are smaller than the plate thickness of the pin fixing node, so that the pins which do not interfere with the tower member of the power transmission tower are installed on the pin fixing node.

Technical Field

The invention relates to a monitoring technology, in particular to a monitoring device for a tower body rod piece of a power transmission tower.

Background

The whole transmission tower is of a space truss structure, and is wide in structure stress, convenient to construct, high in strength, good in integrity and small in self weight. In the truss structure of the power transmission tower, the steel pole material is easy to generate large displacement under extreme natural disaster environments (such as hurricane, hail, earthquake and the like) due to overlarge sudden external acting force. In order to ensure long-term safe and stable operation of the power transmission tower structure and the lines thereof, the national power grid needs to manually inspect the power transmission tower structure when a natural disaster occurs. However, the poles, which are the most basic units of the transmission tower truss structure, are enormous in number on the transmission tower structure, and the number of space truss structures is as many as ten thousands with the construction of the transmission tower. The manual inspection needs to consume a large amount of manpower and material resources, and after an extreme natural disaster event, the manual operation environment is very severe (such as strong wind or icing weather), and the life safety of inspectors is seriously threatened. Therefore, with the development of the internet of things and sensor technology, the intelligent diagnosis device for monitoring the structural rod of the power transmission tower is inevitably selected, and at the same time, each power grid company has a large demand for the intelligent diagnosis device.

Disclosure of Invention

The problem of transmission of electricity pole automatic monitoring to space truss structure, a transmission tower body member monitoring devices is proposed, can gather the displacement of member in real time, gradient data, grasp the destruction circumstances of transmission tower structure member when taking place natural disasters in real time, can realize the intelligent monitoring of transmission tower structure member dependent variable when natural disasters (hurricane, hail and earthquake etc.), avoid artifical detection to waste time and energy and detection personnel personal safety to suffer threat, effectively realize the automatic monitoring problem.

The technical scheme of the invention is as follows: the utility model provides a transmission tower body member monitoring devices, including fixed protection unit and monitoring data acquisition unit, fixed protection unit includes foot nail buckle subassembly, monitoring member and fastener, foot nail buckle subassembly fixed connection is on the intrinsic foot nail fixed node on transmission tower body member, it is fixed in the screw insertion foot nail buckle subassembly of hollow cylindrical monitoring member, monitoring data acquisition unit fixed seal is in monitoring member, monitoring member and transmission tower body member relative position are fixed, monitoring data acquisition unit gathers the strain data of transmission tower body member, the slope data, position data wireless transmission to by communication terminal, NB-IoT basic station, NB-IoT core network, IoT cloud platform and application server constitute communication network.

Preferably, two monitoring rod pieces are in a group, the two monitoring rod pieces are connected and locked through a distance adjusting loose joint, and the other two ends of the two monitoring rod pieces are fixed on upper and lower foot nail fixing nodes of the tower body rod piece of the power transmission tower through foot nail buckle assemblies respectively.

Preferably, the output power of the power transmission tower is sent to an internal voltage reduction and voltage stabilization circuit in the monitoring data acquisition unit, one path of the output of the voltage reduction and voltage stabilization circuit is output to a super capacitor serving as a standby power supply, and the other path of the output of the voltage reduction and voltage stabilization circuit supplies power to the monitoring data acquisition unit.

Preferably, all elements of the monitoring data acquisition unit are arranged on the same PCB, the monitoring data acquisition unit comprises a voltage reduction and voltage stabilization chip for processing power supply, a piezoelectric ceramic vibration exciter and a piezoelectric ceramic strain gauge for monitoring the strain of a tower body rod of the power transmission tower, a wireless transmission module for transmitting data outwards, a three-axis acceleration sensor for acquiring an inclination angle and a position and a Beidou positioner, and the monitoring data acquisition unit is packaged and then is inserted into the monitoring rod and then is fixed in the monitoring rod in an encapsulating manner.

Preferably, the piezoelectric ceramic vibration exciter sends an external load excitation signal to the power transmission tower rod piece, the excitation signal is transmitted in the power transmission tower rod piece, and the piezoelectric ceramic strain gauge of the power transmission tower rod piece acquires strain response data of the rod piece; real-time excitation signals sent by the piezoelectric ceramic vibration exciter and real-time strain response data received by the piezoelectric ceramic strain gauge are transmitted to the wireless transmission module and immediately uploaded to the terminal.

Preferably, foot nail buckle subassembly includes buckle and picture peg, has a convex surface on the buckle, and the buckle is detained in foot nail fixed node one side, and the convex surface size matches with foot nail fixed node's space, has two parallel vertical poles on the picture peg, and the picture peg is detained and is arranged in the foot nail fixed node another side of keeping away from the buckle, wears out behind two parallel vertical poles insert the round hole on the buckle, installs the nut additional fixed.

Preferably, the foot nail buckle subassembly fixes the degree of freedom that the monitoring member piece of spiral insertion foot nail buckle subassembly, and the plate thickness of buckle and picture peg and the diameter of two vertical poles all are less than foot nail fixed node plate thickness, can not interfere the foot nail of transmission tower body member and install on foot nail fixed node.

The invention has the beneficial effects that: the monitoring device for the pole pieces of the tower body of the power transmission tower realizes large-displacement damage monitoring of the pole pieces of the structure of the power transmission tower in a power transmission system during natural disasters, avoids manual detection which consumes a large amount of manpower and material resources, and avoids personal safety from being threatened during manual operation; the monitoring device is comprehensive in arrangement scheme and convenient to construct, is beneficial to reducing working hours and installation cost, and is suitable for large-scale engineering application. The intelligent monitoring system realizes the intelligent monitoring of the large displacement of the rod piece of the power transmission tower structure in natural disasters (hurricane, hail, earthquake and the like), avoids the time and labor waste of manual detection and the threat to the personal safety of detection personnel, and effectively solves the problem of automatic monitoring and diagnosis of the large displacement of the rod piece of the power transmission tower structure in natural disasters; the intelligent rod piece can be connected with the terminal in real time, the mechanical behavior of a single rod piece of the transmission tower can be monitored in real time, the early warning and the preparation work of the dangerous rod piece can be timely performed by a worker, and data and a scheme can be provided for the design and reinforcement of the follow-up transmission tower rod piece.

Drawings

Fig. 1 is a schematic structural view of a power transmission tower body rod monitoring device according to the present invention;

FIG. 2 is a schematic diagram of a power supply terminal of the apparatus of the present invention;

FIG. 3 is a schematic view of the arrangement of monitoring data acquisition units in the apparatus of the present invention;

FIG. 4 is a schematic view of the monitoring data acquisition unit package according to the present invention;

FIG. 5 is a schematic view of a power transmission tower upper stud fixing node according to the present invention;

FIG. 6 is a 3D schematic view of the assembled pin fastener assembly of the apparatus of the present invention;

FIG. 7 is a left side view of the assembled nail fastener assembly of the present invention;

FIG. 8 is a schematic view of a structure of a buckle plate of the foot nail buckle assembly of the present invention;

FIG. 9 is a schematic view of a mid-plane board structure of the foot nail fastening assembly of the present invention;

FIG. 10 is a schematic view of a loose joint in the apparatus of the present invention;

FIG. 11 is a schematic view of the apparatus of the present invention mounted to a transmission tower;

fig. 12 is a schematic diagram of a wireless transmission module in the apparatus of the present invention.

The attached drawings are as follows: 1. fixing the nodes by foot nails; 2. foot nails; 3. a foot pin buckle assembly; 301. buckling the plate; 302. inserting plates; 4. monitoring the rod piece; 5. a power transmission tower body rod; 6. loose joint; 7. fastening a nut; 8. transmitting power and supplying power; 9. a monitoring data acquisition unit; 10. a super capacitor; 901. a voltage reduction and stabilization chip; 902. the piezoelectric ceramic vibration exciter and the piezoelectric ceramic strain gauge; 903. a wireless transmission module; 904. triaxial acceleration sensor and big dipper locator.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1, the structural schematic diagram of the power transmission tower body rod monitoring device includes a fixed protection unit and a monitoring data acquisition unit 9, the fixed protection unit includes a foot nail buckle assembly 3, a monitoring rod 4 and a fastening piece, in order to test the verticality of a power transmission tower body rod 5 in real time, the monitoring device is designed by utilizing a foot nail fixing node 1 inherent on each section of the power transmission tower body rod, the foot nail buckle assembly 3 is designed, the monitoring rod 4 is fixed on the foot nail fixing node 1, and the degrees of freedom of the intelligent rod in three directions are restricted; the monitoring data acquisition unit 9 is built-in to be protected at monitoring member 4, hollow cylindrical monitoring member 4 one end has the screw thread, one end spiral inserts in the foot nail buckle subassembly 3 fixed, the other end inserts loose joint 6 and is connected with another monitoring member, two monitoring members 4 are a set of, connect by loose joint 6 between two monitoring members, the distance between two upper and lower foot nail fixed node 1 is not identical, and too big for preventing to control member 4 processing error appears, loose joint 6 sets up and connects between two monitoring members 4, its distance control effect, behind two monitoring members 4 screw in loose joint 6, it is fixed by the fastening nut 7 who cup joints on monitoring member screw thread, make phase place about the post-installation position simultaneously, intelligent member possesses the pulling pressure simultaneously.

The schematic diagram of the power supply terminal in the device shown in fig. 2: the main source of the electric energy is power supply for a power transmission tower, the power transmission and power supply 8 inputs electricity into the monitoring data acquisition unit 9 and charges the super capacitor 10 after passing through the internal voltage reduction and voltage stabilization circuit, the power supply modes of the device are divided into two modes, when a power transmission tower supplies power normally, the power transmission and power supply 8 of the power transmission tower directly supplies power for the monitoring data acquisition unit 9 and charges the super capacitor 10 through the voltage reduction and voltage stabilization circuit in the monitoring data acquisition unit 9; and when the other type of the solar energy monitoring system meets extreme weather (strong wind and ice coating), the super capacitor 10 independently supplies power for the monitoring data acquisition unit 9.

As shown in fig. 3, the arrangement of the monitoring data acquisition units is schematic, and the whole monitoring data acquisition unit is arranged on the same PCB, and includes a voltage reduction and voltage stabilization chip 901 for processing power supply, a piezoelectric ceramic vibration exciter and a piezoelectric ceramic strain gauge 902 for monitoring strain of a tower body rod of a power transmission tower, a wireless transmission module 903 for transmitting data outwards, and a three-axis acceleration sensor and a beidou locator 904 for position acquisition. As shown in fig. 4, the monitoring data acquisition unit is schematically packaged, the monitoring data acquisition unit 9 is packaged and then inserted into the monitoring rod 4, and then the monitoring rod 4 is fixed in the monitoring rod 4 by glue pouring.

The voltage reduction and stabilization module based on the single chip microcomputer control adopts an LM2575 power management module to carry out voltage reduction and stabilization processing. The piezoelectric ceramic vibration exciter and the piezoelectric ceramic strain gauges are respectively distributed and fixed at the inner fixed plane of the intelligent rod piece, the piezoelectric ceramic strain gauges and the monitoring rod pieces 4 are packaged, glue-filled and fixed, the relative positions of the piezoelectric ceramic strain gauges and the monitoring rod pieces are unchanged, the monitoring rod pieces 4 are fixed on 2 foot nail fixed nodes 1 of the upper and lower transmission tower body rod pieces, the monitoring rod pieces 4 and the transmission tower body rod pieces keep the consistent relative positions, and when the transmission tower body rod pieces are strained, the piezoelectric ceramic strain gauges can directly detect the strain; the piezoelectric ceramic vibration exciter sends an external load excitation signal to the power transmission tower rod piece, the excitation signal is transmitted in the power transmission tower rod piece, and the piezoelectric ceramic strain gauge of the power transmission tower rod piece collects strain response data of the rod piece; then, real-time excitation signals sent by the piezoelectric ceramic vibration exciter and real-time strain response data received by the piezoelectric ceramic strain gauge are transmitted to the wireless transmission module and immediately uploaded to a terminal; install on same PCB board with piezoceramics foil gage, the initial position of detectable transmission tower body member after triaxial acceleration sensor fixed mounting, ADLX345 triaxial acceleration sensor measures the gradient of shaft tower in real time and passes through wireless transmission module and upload to the terminal, and with the reliable degree data contrast of terminal, if meet dangerous situation, carry out dangerous early warning, by big dipper locator work simultaneously, fix a position dangerous member.

As shown in fig. 5, the schematic diagram of the fixing node of the foot nail on the power transmission tower is shown, the fixing node of the foot nail on the tower body rod of the power transmission tower is shown as 1, the plate is folded on the tower body rod of the power transmission tower in a welding mode, the foot nail is arranged on the surface facing outwards away from the tower body rod of the power transmission tower in a deviating mode, and the foot nail is buckled with the buckling component 3 by utilizing the design, as shown in fig. 6 and 7, the buckling component 3 of the foot nail is shown as an assembled schematic diagram, the buckling component 3 of the foot nail comprises a buckling plate 301 (shown in fig. 8) and a plug plate 302 (shown in fig. 9), a convex surface is arranged on the buckling plate 301, the buckling plate 301 is buckled on one surface of the fixing node of the foot nail 1, the size of the convex surface is matched with the space of the fixing node of the foot nail, two parallel vertical rods are arranged on the other side of the fixing node of the foot nail, which is far away from the buckling plate 301, the two parallel vertical rods are inserted into the round hole on the buckling plate 301, nuts are additionally arranged, and fixed, and the foot nail buckling component 3 is fixed on the fixing node 1.

Two monitoring rod pieces 4 are connected through loose joints as shown in fig. 10, two ends of the two monitoring rod pieces 4 are fixed on the pin fixing nodes, and the device is installed on a schematic diagram after the device is installed on a power transmission tower as shown in fig. 11; the degree of freedom of the rod pieces in three directions is fixed through a mechanical design principle, the thicknesses of the upper and lower pinch plates 301 and the insertion plate 302 and the diameters of the two vertical rods are smaller than the thickness of the foot nail fixing node plate, and installation of foot nails of a power transmission tower cannot be interfered through interference simulation inspection. The monitoring data acquisition unit 9 arranged in the monitoring rod piece 4 always keeps a relatively stable position with the tower body rod piece of the power transmission tower, and when the tower body rod piece of the power transmission tower is strained and shifted in position, the monitoring data acquisition unit can monitor the strain and the shift in position and transmit data out through the wireless transmission module.

As shown in fig. 12, the transmission diagram of the wireless transmission module is that wired transmission mainly depends on data and signal transmission with optical fiber as a medium; a wireless transmission module in the power transmission tower body rod piece monitoring device, a communication terminal, an NB-IoT base station, an NB-IoT core network, an IoT cloud platform and an application server form a communication network. Compared with the traditional 2G, 3G and 4G cellular networks, the method solves the problem that the traditional cellular network transmission is not suitable for low-power-consumption scenes. And the NB-IoT can better stabilize signals in the areas with rare people and displaced power transmission towers. Compared with ZigBee and LoRa, the wireless communication technology adopts NB-IoT, and does not need to establish a base station or a gateway to access the sensor to the Internet, so that the deployment is simple.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.