CN109917712B - An online full-process management and control system and method for distribution network grounding wires based on the Internet of Things - Google Patents
An online full-process management and control system and method for distribution network grounding wires based on the Internet of Things Download PDFInfo
- Publication number
- CN109917712B CN109917712B CN201910233703.1A CN201910233703A CN109917712B CN 109917712 B CN109917712 B CN 109917712B CN 201910233703 A CN201910233703 A CN 201910233703A CN 109917712 B CN109917712 B CN 109917712B
- Authority
- CN
- China
- Prior art keywords
- grounding
- rod
- hook
- unit
- pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention relates to a grounding system and a grounding method, in particular to a distribution network grounding wire online whole-process control system and a distribution network grounding wire online whole-process control method based on the Internet of things. The online overall process control system and method for the distribution network grounding wire based on the Internet of things are compact and reasonable in structure, stable in service performance and intelligent and simple in control. The grounding pile detection unit is fixedly arranged on the grounding pile; the grounding hook detection system is connected with the main processing chip, and sends the grounding hook detection system to the cloud platform through the wireless data transmission unit to communicate with the dispatching room; the grounding pile detection unit is in communication connection with the main processing chip, and sends the grounding pile detection unit to the cloud platform through the wireless data transmission unit to communicate with the dispatching room. The invention has the characteristics of compact and reasonable structure, stable service performance, intelligent and simple control and the like.
Description
Technical Field
The invention relates to a grounding system and a grounding method, in particular to an online overall process management and control system and method for a distribution network grounding wire based on the Internet of things.
Background
When the overhead line of the power distribution network of the power system is subjected to power failure maintenance, electric operators should strictly perform grounding operation on two ends of a maintenance working range (all ports of the branch outside are required to be grounded in the case of complex branching) according to a program specified by the live working safety working regulations. However, the maintainer does not strictly adhere to the safety work regulations of the electric operation, and the event of electric shock death occurs. The reasons for this are mainly analyzed as follows:
1. the heart is in the lucky heart, and the grounding cable hook is brought to the site but is not hung;
2. the grounding cable is hooked on the power distribution network, but the grounding pile is not inserted into the ground for more than 60cm, so that the grounding effect is poor;
3. the two ends of the overhaul working range are not grounded at the same time, and only one end is connected;
4. when a large number of cables are branched in the overhaul working range, all ports outside the overhaul working range cannot be grounded because of unfamiliar cable distribution or omission.
Disclosure of Invention
Aiming at the problems, the invention provides the online whole process management and control system and the online whole process management and control method for the distribution network grounding wire based on the Internet of things, which have the advantages of compact and reasonable structure, stable use performance and intelligent and simple management and control.
The technical scheme of the invention is as follows: the device comprises a grounding pile, a grounding hook, a grounding pile detection unit, a grounding hook detection unit, a main processing chip and a wireless data transmission unit;
the grounding pile detection unit is fixedly arranged on the grounding pile;
the grounding hook detection unit, the main processing chip and the wireless data transmission unit are respectively and fixedly arranged on the grounding hook;
the grounding hook detection system is connected with the main processing chip, and sends the grounding hook detection system to the cloud platform through the wireless data transmission unit to communicate with the dispatching room;
the grounding pile detection unit is in communication connection with the main processing chip, and sends the grounding pile detection unit to the cloud platform through the wireless data transmission unit to communicate with the dispatching room.
The grounding pile comprises a wiring terminal, a body, a first inserting rod and a second inserting rod;
the grounding pile detection unit comprises a photoresistor unit; the first inserting rod and the second inserting rod are respectively provided with a photoresistor unit;
the photoresistor units comprise a plurality of vertically and uniformly distributed photoresistors;
the first inserting rod and the second inserting rod are symmetrically arranged;
the first inserting rod and the second inserting rod are respectively and fixedly arranged at the bottom of the body; the binding post is fixed to be set up the top of body.
The grounding hook comprises a hook, a pressing block, a screw rod, a grounding rod shell and a screwing handle;
the grounding hook detection system comprises an RFID tag reading unit, a pressure sensor unit and a GPS Beidou positioning unit;
the RFID tag is stuck on a grounding ring fixedly connected with the cable; the RFID tag reading unit reads the RFID tag;
the pressure sensor unit comprises a pressure sensor, the pressure sensor is communicated with the main processing chip, and the main processing chip performs data transmission through the wireless data transmission unit;
the GPS Beidou positioning unit is connected with the main processing chip, and sends the GPS Beidou positioning unit to the cloud platform through the wireless data transmission unit to communicate with the dispatching room;
the RFID tag reading unit, the pressure sensor unit and the GPS Beidou positioning unit are respectively and fixedly arranged in the grounding rod shell;
the screwing handle is fixedly arranged at the bottom of the grounding rod shell;
the screw rod is vertically arranged, and the bottom of the screw rod is connected with the pressure sensor; the pressing block is movably arranged at the top of the screw rod; the hook is movably arranged on the screw rod, and a pressing interface is arranged between the hook and the pressing block.
The first inserting rod is provided with a reinforcing mechanism;
the reinforcing mechanism comprises a positioning rod, a limiting seat, a limiting spring, an actuating rod, a reset spring and a pressing block;
the execution rod is movably arranged in the inner cavity of the first inserting rod;
the reset spring is arranged between the bottom of the actuating rod and the bottom of the inner cavity of the first inserting rod;
the pressing block is fixedly arranged on the actuating rod and is close to the top; a rectangular groove matched with the pressing block is formed in the position, close to the top, of the first inserting rod;
the positioning rod is horizontally movably arranged on the first inserting rod; one end of the limiting seat is fixedly connected with the positioning rod, and the other end of the limiting seat is provided with a first inclined plane which is connected with the actuating rod through the reset spring; and the execution rod is provided with a second inclined plane which is matched with the first inclined plane.
A supporting mechanism is further arranged on the shell of the grounding hook;
the supporting mechanism comprises a positioning block, a hinging block, a rod body and a lock catch;
one side of the positioning block is fixedly arranged on the grounding rod shell, and the other side of the positioning block is provided with a groove matched with the hinging block;
one side of the hinging block is hinged in the groove through a hinging shaft I, and the other side of the hinging block is hinged with one end of the rod body through a hinging shaft II; the lock catch is movably arranged at the other end of the rod body.
The rod body comprises a first rod and a second rod;
one end of the first rod is hinged to the hinging block;
one end of the second rod is movably connected with the lock catch;
the other end of the second rod is provided with an external thread, and the other end of the first rod is provided with an internal thread matched with the second rod.
The bottom of the screwing handle is provided with a counterweight mechanism;
the counterweight mechanism comprises a locking rod and a storage flange;
the locking rod is T-shaped, a locking external thread is arranged on the locking rod, and a locking internal thread matched with the locking external thread is arranged at the bottom of the screwing handle;
the storage flange is sleeved on the locking rod and is connected with the screwing handle through the locking rod; the storage flange is provided with a storage bin; the storage flange is provided with a feed inlet communicated with the storage bin, and the feed inlet is provided with a plug which is detachably and fixedly connected.
The method comprises the following steps:
1) Setting a construction operation diagram, and marking the position of a grounding ring to be grounded; sending the marked construction work drawing to a cloud platform;
2) The constructor is called from the cloud platform through the mobile equipment; the construction staff can conveniently construct according to the drawing, and the missing hanging or the wrong hanging is prevented;
3) According to the position of the grounding ring marked in the construction operation diagram, connecting the grounding hook with the grounding pile through a lead in advance;
4) Inserting the grounding pile in the step 3) into soil;
5) Connecting the grounding hook in the step 3) with the grounding ring marked in the step 1);
6) The grounding pile in the step 4) and the grounding hook in the step 5) are respectively electrified and detected;
6.1 Powering on the grounding pile detection unit of the grounding pile in the step 6);
the ground pile detection unit transmits detection data to the main processing chip, and the data of the main processing chip is transmitted to the cloud platform through the wireless data transmission module; the dispatching room monitors the grounding depth of the grounding pile by dispatching cloud platform information;
6.11 Step 6.1), when the monitoring value of the dispatching room accords with the specified value, the grounding pile detection lamp is green;
6.12 Step 6.1), when the monitoring value of the dispatching room does not accord with the regulated value, the grounding pile detection lamp is red; the dispatching room sends alarm information, and returns to the step 4), and the grounding pile is reinserted into the soil;
6.2 Powering on the grounding hook detection system of the grounding hook in the step 6);
the ground hook detection system transmits detection data to the main processing chip, and the data of the main processing chip is transmitted to the cloud platform through the wireless data transmission module; the dispatching room monitors the connection state of the grounding hook and the grounding ring by dispatching cloud platform information;
6.21 When the monitoring value of the dispatching room in the step 6.2) accords with the specified value, the grounding hook detection lamp is green;
6.22 Step 6.2), when the monitoring value of the dispatching room does not accord with the regulated value, the grounding pile detection lamp is red; the dispatching room sends alarm information, returns to the step 5), and the grounding hook is connected with the grounding ring again;
7) The grounding pile detection lamp in the step 6.11) and the grounding hook detection lamp in the step 6.21) are respectively green, meet the construction requirements, send information to site constructors and can be operated and maintained.
The grounding hook detection system in the step 6.2) comprises an RFID read-write unit, a GPS Beidou positioning unit and a pressure sensor unit;
after the field personnel arrive at the field, hooking the grounding ring on the grounding hook; at the moment, the RFID read-write unit and the GPS Beidou positioning unit on the grounding hook are started; the RFID reader continuously reads the RFID information on the grounding ring, and the interval is once every twenty seconds, so that the grounding hook is ensured to be always connected with the grounding ring;
the GPS Beidou positioning unit judges whether constructors and the grounding wire reach a designated site position or not;
after the constructor hangs the grounding hook, whether the cable hook is hung tightly or not is judged through the pressure value of the pressure sensor.
The grounding pile detection system comprises a grounding pile, a grounding hook, a grounding pile detection unit, a grounding hook detection unit, a main processing chip and a wireless data transmission unit; the grounding pile detection unit comprises a plurality of photoresistors; the grounding hook detection system comprises an RFID tag reading unit, a pressure sensor unit and a GPS Beidou positioning unit;
the system monitors the construction operation steps of the construction operators, can judge through a photoresistor when the grounding pile is connected, and can judge through a pressure sensor when the grounding hook is hung; therefore, whether the constructor operates according to regulations can be judged through the sequence value of the sensor. Through realizing the online overall process control of earth connection, standardize maintainer operation, guaranteed operating personnel's life safety, avoided the emergence of life casualties accident. Meanwhile, the overhaul efficiency of the overhaul personnel is improved. The invention has the characteristics of compact and reasonable structure, stable service performance, intelligent and simple control and the like.
Drawings
Figure 1 is a schematic view of the structure of the grounding hook of the present invention,
figure 2 is a schematic view of the left side structure of figure 1,
figure 3 is a schematic view of the structure of B-B in figure 2,
figure 4 is a schematic view of the structure of the support mechanism,
figure 5 is a schematic view of the structure of the ground stake,
figure 6 is a schematic view of the left side structure of figure 5,
figure 7 is a schematic structural view of the reinforcement mechanism,
figure 8 is an enlarged schematic view of the fastening mechanism of figure 7,
figure 9 is a schematic diagram of a frame structure of the present invention,
figure 10 is a circuit diagram of a photosensitive sensor cell,
figure 11 is a circuit diagram of a pressure sensor unit,
figure 12 is a circuit diagram of a wireless data transmission unit,
fig. 13 is a circuit diagram of a power supply circuit;
FIG. 14 is a construction work diagram of a region;
FIG. 15 is a schematic diagram of an installation operation flow;
in the figure, 1 is a grounding pile, 11 is a wiring terminal, 12 is a body, 13 is a first inserting rod, 14 is a second inserting rod, and 15 is a photoresistor unit;
2 is a grounding hook, 21 is a hook, 22 is a pressing block, 23 is a screw rod, 24 is a grounding rod shell, 25 is a screwing grip, 26 is an RFID tag reading unit, 27 is a pressure sensor unit, 28 is a GPS Beidou positioning unit, 29 is a main processing chip, 210 is a wireless data transmission unit,
3 is a reinforcing mechanism, 31 is a positioning rod, 32 is a limiting seat, 33 is a limiting spring, 34 is an actuating rod, 35 is a return spring,
4 is a supporting mechanism, 41 is a positioning block, 42 is a hinging block, 43 is a rod body, 44 is a lock catch,
431 is the first pole, 432 is the second pole,
5 is a counterweight mechanism, 51 is a locking lever, 52 is a storage flange,
j1 in fig. 10 is a photoresistor, and J3 in fig. 11 is a pressure sensor;
in fig. 10, a is a schematic circuit structure of a photoresistor, which is connected to a pin of the main processing chip 14, B is a schematic circuit structure of the main processing chip, C is a schematic circuit structure of the pressure sensor, D is a schematic circuit structure of the wireless data transmission unit, and E is a schematic circuit structure of the power supply circuit;
in fig. 14, G is a fault maintenance point, and H1, H2, H3, H4, H5, H6, H7, H8, H9, and H10 are ground rings, respectively.
Detailed Description
The invention is as shown in fig. 1-15, and comprises a grounding pile 1, a grounding hook 2, a grounding pile detection unit, a grounding hook detection unit, a main processing chip 29 and a wireless data transmission unit 210;
the grounding pile detection unit is fixedly arranged on the grounding pile 1;
the grounding hook detection unit, the main processing chip 29 and the wireless data transmission unit 210 are fixedly arranged on the grounding hook 2 respectively;
the ground hook detection system is connected with the main processing chip 29, and sends the ground hook detection system to a cloud platform through the wireless data transmission unit 210 to communicate with a dispatching room;
the ground pile detection unit is in communication connection with the main processing chip 29, and sends the ground pile detection unit to the cloud platform through the wireless data transmission unit 210, so as to communicate with a dispatching room.
The ground pile detection unit is in communication connection with the main processing chip 29 in a wired connection manner (data line) or in a wireless connection manner (wireless transmitter and wireless receiver); the two modes are communication modes commonly used in the technical field, and belong to the prior art.
Preferably, the grounding pile is connected with the grounding hook through an RS485 bus, data detected by the photoresistor in the grounding pile detection unit is processed by the grounding pile main processing chip in the grounding pile detection unit, the main processing chip finishes AD sampling of the photoresistor, after analog signals are converted into digital signals, the digital signals are transmitted to the main processing chip of the grounding hook through the RS485 bus, and the data are transmitted to the cloud platform through the wireless communication module connected with the main processing chip of the grounding hook. The dispatching room is used for retrieving relevant data through the cloud platform, monitoring the field grounding condition and carrying out normative monitoring and command on the field operation steps through monitoring information. The grounding pile 1 and the grounding hook 2 are respectively provided with a power supply unit for supplying power to each detection unit. (the ground stake and the power supply unit circuit of the ground hook are the same). The power supply unit adopts a 3.7V lithium battery pack to supply power, and the system is provided with a charging interface and can be charged by using a 5V or solar battery. In this case, the parts in the ground stake detecting element, the ground hook detecting element, the main processing chip and the wireless data transmission unit all belong to prior art, present product in the market.
The grounding pile 1 comprises a wiring terminal 11, a body 12, a first inserted link 13 and a second inserted link 14;
the grounding pile detection unit comprises a photoresistor unit 15; the first inserting rod 13 and the second inserting rod 14 are respectively provided with a photoresistor unit 15;
the photoresistor unit 15 comprises a plurality of vertically and uniformly distributed photoresistors;
the first inserting rod 13 and the second inserting rod 14 are symmetrically arranged;
the first inserting rod 13 and the second inserting rod 14 are respectively and fixedly arranged at the bottom of the body 12; the connection terminal 11 is fixedly arranged on the top of the body 12.
The grounding pile 1 utilizes the photoresistance principle to calibrate and detect the grounding depth of the cable grounding pile 1, and the current burying depth of the grounding pile 1 can be calculated by calculating the resistance value of the photoresistance wire. The grounding pile 1 is of a metal structure, the first inserting rod 1313 and the second inserting rod 14 are provided with the photoresistors 15, and when the grounding pile 1 is inserted into the soil, light is blocked by the soil, so that the depth of the grounding pile 1 inserted into the soil can be detected.
Specifically, the first inserting rod 13 and the second inserting rod 14 are respectively provided with four vertically equidistant photoresistors 15, each distance is equal, and when the photoresistors 15 at corresponding positions are in a high-resistance state, the specified depth is reached.
The grounding hook 2 comprises a hook 21, a pressing block 22, a screw rod 23, a grounding rod shell 24 and a screwing handle 25;
the grounding hook detection system comprises an RFID tag reading unit 26 (the RFID tag reading unit 26 adopts an ultra-high frequency UHF 900m RFID read-write unit), a pressure sensor unit 27 and a GPS Beidou positioning unit 28;
the RFID tag is stuck on a grounding ring fixedly connected with the cable; the RFID tag reading unit 26 reads the RFID tag;
the pressure sensor unit 27 includes a pressure sensor, the pressure sensor communicates with the main processing chip 29, and the main processing chip 29 performs data transmission through the wireless data transmission unit 210;
the GPS Beidou positioning unit 28 is connected with the main processing chip 29, and sends the GPS Beidou positioning unit to a cloud platform through a wireless data transmission unit 210 to communicate with a dispatching room;
the RFID tag reading unit 26, the pressure sensor unit 27 and the GPS Beidou positioning unit 28 are fixedly arranged in the grounding rod shell 24 respectively;
the screwing handle 25 is fixedly arranged at the bottom of the grounding rod shell 24;
the screw rod 23 is vertically arranged, and the bottom of the screw rod is connected with the pressure sensor; the pressing block 22 is movably arranged at the top of the screw rod 23; the pressing block 22 can only do 360-degree rotation movement on the screw rod 23; the hook 21 is movably arranged on the screw rod 23, and a pressing port is arranged between the hook 21 and the pressing block 22. The press interface is connected with a full-insulation grounding ring on the electric network.
The grounding hook 2 judges whether the grounding hook 21 effectively contacts a grounding ring (the grounding ring is arranged on a power grid and fixedly connected with the power grid) through a pressure sensor; the reading of the pressure sensor can judge whether the grounding hook 2 is effectively hung.
When the grounding rings are hooked on the grounding hooks 2, the RFID reader-writer inside the grounding hooks 2 can automatically read the numerical value on the current RFID tag, the GPS Beidou positioning unit 28 inside the grounding hooks 2 can provide current position data, and the GPRS unit in the main processing chip 29 in the grounding hooks 2 can send the RFID data and the GPS Beidou data to the dispatching room. The dispatch room can determine whether the ground ring of the area is effectively grounded.
The first inserting rod 13 is provided with a reinforcing mechanism 3;
the reinforcing mechanism 3 comprises a positioning rod 31, a limiting seat 32, a limiting spring 33, an actuating rod 34, a return spring 35 and a pressing block;
the actuating rod 34 is movably arranged in the inner cavity of the first inserting rod 13;
the return spring 35 is arranged between the bottom of the actuating rod 34 and the bottom of the inner cavity of the first inserted rod 13;
the top of the reset spring 35 is fixedly arranged at the bottom of the actuating rod 34, and the bottom of the reset spring 35 is limited in the inner cavity of the first inserting rod 13 and is positioned at the bottom of the inner cavity;
the pressing block is fixedly arranged on the actuating rod 34 and is close to the top position; a rectangular groove matched with the pressing block is formed in the position, close to the top, of the first inserting rod 13;
the positioning rod 31 is horizontally movably arranged on the first inserting rod 13; one end of the limiting seat 32 is fixedly connected with the positioning rod 31, the other end is provided with a first inclined plane, and the limiting seat is connected with the actuating rod 34 through the reset spring 35; the actuating lever 34 is provided with a second inclined plane adapted to the first inclined plane.
The reinforcing mechanism 3 effectively prevents the stability of the connection of the grounding pile 1 caused by external force in the maintenance process; when the grounding pile 1 is installed, the execution rod 34 is vertically moved downwards by the pressing block, namely the limiting spring 33 moves the positioning rod 31 into the inner cavity of the first inserting rod 13 through the limiting seat 32; after the grounding pile 1 is installed in place, the pressing block is loosened, the return spring 35 moves the actuating rod 34 upwards, namely the positioning rod 31 is inserted into soil towards one end of the outer side of the first inserting rod 13, so that reinforcement is realized; the same reinforcing mechanism 3 can be arranged on the second inserted link 14, so that the stability of the grounding pile 1 is further improved.
The shell of the grounding hook 2 is also provided with a supporting mechanism 4;
the supporting mechanism 4 comprises a positioning block 41, a hinging block 42, a rod body 43 and a lock catch 44;
one side of the positioning block 41 is fixedly arranged on the grounding rod shell 24, and the other side is provided with a groove matched with the hinging block 42;
one side of the hinge block 42 is hinged in the groove through a hinge shaft I, and the other side of the hinge block 42 is hinged with one end of the rod body 43 through a hinge shaft II; the lock catch 44 is movably disposed at the other end of the rod 43.
The supporting mechanism 4 effectively improves the stability of the grounding hook 2 on a power grid, and when the grounding hook 2 is affected by wind power, the grounding hook 2 can shake to affect the communication of internal units. The supporting mechanism 4 is used in the following manner: the grounding hook 2 is previously installed on the electric network, the direction of the rod body 43 and the cable to be connected is adjusted through the hinging block 42, and then the rod body is fixedly connected with the corresponding cable through the lock catch 44. The latch 44 may take any form commonly used in the art so long as it is securely connected to the cable.
The rod body 43 comprises a first rod 431 and a second rod 432;
one end of the first rod 431 is hinged to the hinge block 42;
one end of the second rod 432 is movably connected with the lock catch;
the other end of the second rod 432 is provided with external threads, and the other end of the first rod 431 is provided with internal threads which are matched with the second rod 432.
By the telescopic cooperation of the first rod 431 and the second rod 432, the flexibility of connection is improved, and when the expected connection position is far away, the connection with the destination can be realized by the telescopic rod 432.
The bottom of the screwing handle 25 is provided with a counterweight mechanism 5; the stability of the grounding hook 2 suspension is improved through the configuration mechanism;
the counterweight mechanism 5 comprises a locking rod 51 and a storage flange 52;
the locking rod 51 is in a T shape, a locking external thread is arranged on the locking rod 51, and a locking internal thread matched with the locking external thread is arranged at the bottom of the screwing handle 25;
the storage flange 52 is sleeved on the locking rod 51 and is connected with the screwing handle 25 through the locking rod 51; the storage flange 52 is provided with a storage bin; the storage flange 52 is provided with a feed inlet communicated with the storage bin, and the feed inlet is provided with a plug which is detachably and fixedly connected. Water or sand is filled in the storage bin of the storage flange 52, so that materials are conveniently obtained; then the ground hook 2 is fixedly arranged at the bottom of the screwing handle 25, and finally the ground hook 2 is hung on a ground ring, so that the dead weight of the ground hook 2 is improved, and the water or sand in the storage bin is filled according to the wind power of the site.
And constructing a cable distribution diagram and a grounding ring distribution diagram in the background system, when a certain area needs to be overhauled, automatically calling out the cable distribution diagram and the grounding ring distribution diagram, marking the grounding ring to be grounded according to the distribution diagram, and when all the grounding rings are grounded, prompting an operator to perform operation by the system, otherwise, prompting that an ungrounded area exists by an alarm, and not performing overhauling operation.
In fig. 14, the fault maintenance point G is to be maintained and overhauled, the dispatching room calls the power distribution diagram, positions the power distribution diagram to the fault point, and the existing power distribution diagram is marked with the grounding ring position; the position of the grounding ring to be grounded is marked by the dispatching room and is sent to site constructors, and the site constructors perform grounding one by one according to the position sent by the dispatching room. As shown in FIG. 14, the dispatcher marks the positions of the grounding rings H1-H10, and the constructor grounds the 10 grounding rings one by one and manages the grounding process, so that the maintenance efficiency and safety are greatly improved.
An online overall process control method for a distribution network grounding wire based on the Internet of things comprises the following steps:
1) Setting a construction operation diagram, and marking the position of a grounding ring to be grounded; sending the marked construction work drawing to a cloud platform;
2) The constructor is called from the cloud platform through the mobile equipment; the construction staff can conveniently construct according to the drawing, and the missing hanging or the wrong hanging is prevented;
3) According to the position of the grounding ring marked in the construction operation diagram, connecting the grounding hook with the grounding pile through a lead in advance;
4) Inserting the grounding pile in the step 3) into soil;
5) Connecting the grounding hook in the step 3) with the grounding ring marked in the step 1);
6) The grounding pile in the step 4) and the grounding hook in the step 5) are respectively electrified and detected;
6.1 Powering on a grounding pile detection unit (photoresistor) of the grounding pile in the step 6);
the ground pile detection unit transmits detection data to the main processing chip, and the data of the main processing chip is transmitted to the cloud platform through the wireless data transmission module; the dispatching room monitors the grounding depth of the grounding pile by dispatching cloud platform information;
6.11 Step 6.1), when the monitoring value of the dispatching room accords with the specified value, the grounding pile detection lamp is green;
6.12 Step 6.1), when the monitoring value of the dispatching room does not accord with the regulated value, the grounding pile detection lamp is red; the dispatching room sends alarm information, and returns to the step 4), and the grounding pile is reinserted into the soil;
6.2 Powering on the grounding hook detection system of the grounding hook in the step 6);
the ground hook detection system transmits detection data to the main processing chip, and the data of the main processing chip is transmitted to the cloud platform through the wireless data transmission module; the dispatching room monitors the connection state of the grounding hook and the grounding ring by dispatching cloud platform information;
6.21 When the monitoring value of the dispatching room in the step 6.2) accords with the specified value, the grounding hook detection lamp is green;
6.22 Step 6.2), when the monitoring value of the dispatching room does not accord with the regulated value, the grounding pile detection lamp is red; the dispatching room sends alarm information, returns to the step 5), and the grounding hook is connected with the grounding ring again;
7) The grounding pile detection lamp in the step 6.11) and the grounding hook detection lamp in the step 6.21) are respectively green, meet the construction requirements, send information to site constructors and can be operated and maintained.
The grounding hook detection system in the step 6.2) comprises an RFID read-write unit, a GPS Beidou positioning unit and a pressure sensor unit 27;
after the field personnel arrive at the field, hooking the grounding ring on the grounding hook; at the moment, the RFID read-write unit and the GPS Beidou positioning unit on the grounding hook are started; the RFID reader continuously reads the RFID information on the grounding ring, and the interval is once every twenty seconds, so that the grounding hook is ensured to be always connected with the grounding ring;
the GPS Beidou positioning unit judges whether constructors and the grounding wire reach a designated site position or not;
after the constructor hangs the grounding hook, whether the cable hook is hung tightly or not is judged through the pressure value of the pressure sensor.
Claims (6)
1. The online overall process control system for the distribution network grounding wire based on the Internet of things is characterized by comprising a grounding pile, a grounding hook, a grounding pile detection unit, a grounding hook detection unit, a main processing chip and a wireless data transmission unit;
the grounding pile detection unit is fixedly arranged on the grounding pile;
the grounding hook detection unit, the main processing chip and the wireless data transmission unit are respectively and fixedly arranged on the grounding hook;
the grounding hook detection system is connected with the main processing chip, and sends the grounding hook detection system to the cloud platform through the wireless data transmission unit to communicate with the dispatching room;
the grounding pile detection unit is in communication connection with the main processing chip, and sends the grounding pile detection unit to the cloud platform through the wireless data transmission unit to communicate with the dispatching room;
the grounding pile comprises a wiring terminal, a body, a first inserting rod and a second inserting rod;
the grounding pile detection unit comprises a photoresistor unit; the first inserting rod and the second inserting rod are respectively provided with a photoresistor unit;
the photoresistor units comprise a plurality of vertically and uniformly distributed photoresistors;
the first inserting rod and the second inserting rod are symmetrically arranged;
the first inserting rod and the second inserting rod are respectively and fixedly arranged at the bottom of the body; the wiring terminal is fixedly arranged at the top of the body;
the grounding hook comprises a hook, a pressing block, a screw rod, a grounding rod shell and a screwing handle;
the grounding hook detection system comprises an RFID tag reading unit, a pressure sensor unit and a GPS Beidou positioning unit;
the RFID tag is stuck on a grounding ring fixedly connected with the cable; the RFID tag reading unit reads the RFID tag;
the pressure sensor unit comprises a pressure sensor, the pressure sensor is communicated with the main processing chip, and the main processing chip performs data transmission through the wireless data transmission unit;
the GPS Beidou positioning unit is connected with the main processing chip, and sends the GPS Beidou positioning unit to the cloud platform through the wireless data transmission unit to communicate with the dispatching room;
the RFID tag reading unit, the pressure sensor unit and the GPS Beidou positioning unit are respectively and fixedly arranged in the grounding rod shell;
the screwing handle is fixedly arranged at the bottom of the grounding rod shell;
the screw rod is vertically arranged, and the bottom of the screw rod is connected with the pressure sensor; the pressing block is movably arranged at the top of the screw rod; the hook is movably arranged on the screw rod, and a pressing interface is arranged between the hook and the pressing block;
the first inserting rod is provided with a reinforcing mechanism;
the reinforcing mechanism comprises a positioning rod, a limiting seat, a limiting spring, an actuating rod, a reset spring and a pressing block;
the execution rod is movably arranged in the inner cavity of the first inserting rod;
the reset spring is arranged between the bottom of the actuating rod and the bottom of the inner cavity of the first inserting rod;
the pressing block is fixedly arranged on the actuating rod and is close to the top; a rectangular groove matched with the pressing block is formed in the position, close to the top, of the first inserting rod;
the positioning rod is horizontally movably arranged on the first inserting rod; one end of the limiting seat is fixedly connected with the positioning rod, and the other end of the limiting seat is provided with a first inclined plane which is connected with the actuating rod through the reset spring; and the execution rod is provided with a second inclined plane which is matched with the first inclined plane.
2. The online overall process control system of the distribution network grounding wire based on the Internet of things according to claim 1, wherein a supporting mechanism is further arranged on a shell of the grounding hook;
the supporting mechanism comprises a positioning block, a hinging block, a rod body and a lock catch;
one side of the positioning block is fixedly arranged on the grounding rod shell, and the other side of the positioning block is provided with a groove matched with the hinging block;
one side of the hinging block is hinged in the groove through a hinging shaft I, and the other side of the hinging block is hinged with one end of the rod body through a hinging shaft II; the lock catch is movably arranged at the other end of the rod body.
3. The online overall process control system of the distribution network grounding wire based on the Internet of things according to claim 2, wherein the rod body comprises a first rod and a second rod;
one end of the first rod is hinged to the hinging block;
one end of the second rod is movably connected with the lock catch;
the other end of the second rod is provided with an external thread, and the other end of the first rod is provided with an internal thread matched with the second rod.
4. The online overall process control system of the distribution network grounding wire based on the Internet of things of the invention is characterized in that a counterweight mechanism is arranged at the bottom of the screwing handle;
the counterweight mechanism comprises a locking rod and a storage flange;
the locking rod is T-shaped, a locking external thread is arranged on the locking rod, and a locking internal thread matched with the locking external thread is arranged at the bottom of the screwing handle;
the storage flange is sleeved on the locking rod and is connected with the screwing handle through the locking rod; the storage flange is provided with a storage bin; the storage flange is provided with a feed inlet communicated with the storage bin, and the feed inlet is provided with a plug which is detachably and fixedly connected.
5. The online overall process control method for the distribution network ground wire of the online overall process control system for the distribution network ground wire based on the internet of things according to claim 1, which is characterized by comprising the following steps:
1) Setting a construction operation diagram, and marking the position of a grounding ring to be grounded; sending the marked construction work drawing to a cloud platform;
2) The constructor is called from the cloud platform through the mobile equipment; the construction staff can conveniently construct according to the drawing, and the missing hanging or the wrong hanging is prevented;
3) According to the position of the grounding ring marked in the construction operation diagram, connecting the grounding hook with the grounding pile through a lead in advance;
4) Inserting the grounding pile in the step 3) into soil;
5) Connecting the grounding hook in the step 3) with the grounding ring marked in the step 1);
6) The grounding pile in the step 4) and the grounding hook in the step 5) are respectively electrified and detected;
6.1 Powering on the grounding pile detection unit of the grounding pile in the step 6);
the ground pile detection unit transmits detection data to the main processing chip, and the data of the main processing chip is transmitted to the cloud platform through the wireless data transmission module; the dispatching room monitors the grounding depth of the grounding pile by dispatching cloud platform information;
6.11 Step 6.1), when the monitoring value of the dispatching room accords with the specified value, the grounding pile detection lamp is green;
6.12 Step 6.1), when the monitoring value of the dispatching room does not accord with the regulated value, the grounding pile detection lamp is red; the dispatching room sends alarm information, and returns to the step 4), and the grounding pile is reinserted into the soil;
6.2 Powering on the grounding hook detection system of the grounding hook in the step 6);
the ground hook detection system transmits detection data to the main processing chip, and the data of the main processing chip is transmitted to the cloud platform through the wireless data transmission module; the dispatching room monitors the connection state of the grounding hook and the grounding ring by dispatching cloud platform information;
21 When the monitoring value of the dispatching room in the step 6.2) accords with the specified value, the grounding hook detection lamp is green;
6.22 Step 6.2), when the monitoring value of the dispatching room does not accord with the regulated value, the grounding pile detection lamp is red; the dispatching room sends alarm information, returns to the step 5), and the grounding hook is connected with the grounding ring again;
7) The grounding pile detection lamp in the step 6.11) and the grounding hook detection lamp in the step 6.21) are respectively green, meet the construction requirements, send information to site constructors and can be operated and maintained.
6. The online overall process control method for the distribution network grounding wire according to claim 5, wherein the grounding hook detection system in the step 6.2) comprises an RFID read-write unit, a GPS Beidou positioning unit and a pressure sensor unit;
after the field personnel arrive at the field, hooking the grounding ring on the grounding hook; at the moment, the RFID read-write unit and the GPS Beidou positioning unit on the grounding hook are started; the RFID reader continuously reads the RFID information on the grounding ring, and the interval is once every twenty seconds, so that the grounding hook is ensured to be always connected with the grounding ring;
the GPS Beidou positioning unit judges whether constructors and the grounding wire reach a designated site position or not;
after the constructor hangs the grounding hook, whether the cable hook is hung tightly or not is judged through the pressure value of the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233703.1A CN109917712B (en) | 2019-03-26 | 2019-03-26 | An online full-process management and control system and method for distribution network grounding wires based on the Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233703.1A CN109917712B (en) | 2019-03-26 | 2019-03-26 | An online full-process management and control system and method for distribution network grounding wires based on the Internet of Things |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109917712A CN109917712A (en) | 2019-06-21 |
| CN109917712B true CN109917712B (en) | 2023-09-19 |
Family
ID=66966964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910233703.1A Active CN109917712B (en) | 2019-03-26 | 2019-03-26 | An online full-process management and control system and method for distribution network grounding wires based on the Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109917712B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729664B (en) * | 2019-10-18 | 2021-03-30 | 国网新疆电力有限公司喀什供电公司 | Ground wire management and control platform |
| CN112161578A (en) * | 2020-10-21 | 2021-01-01 | 南京林业大学 | In-situ soil erosion wireless measurement device and method |
| CN112621632A (en) * | 2020-11-27 | 2021-04-09 | 国网北京市电力公司 | Digital remote monitoring electric torque wrench based on Internet of things and method |
| CN114155680B (en) * | 2021-12-09 | 2023-09-15 | 国网江苏省电力有限公司扬州供电分公司 | An intelligent grounding wire management and control system and its working method |
| CN114646901A (en) * | 2022-03-24 | 2022-06-21 | 国网江苏省电力有限公司扬州供电分公司 | Monitoring and early warning device and method for electric grounding wire |
| CN119151520B (en) * | 2024-11-15 | 2025-07-18 | 无锡广盈集团有限公司 | Pressure-based real-time monitoring method and system for ground point hanging state |
Citations (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0920079A2 (en) * | 1997-11-24 | 1999-06-02 | IBG Monforts GmbH & Co. | Ground connection of a pipe line |
| JP2001097079A (en) * | 1999-09-29 | 2001-04-10 | East Japan Railway Co | Construction method of reference electrode for determining ground fault and reference electrode for determining ground fault |
| JP3137341U (en) * | 2007-08-23 | 2007-11-22 | 株式会社 日興工機 | Earthing device |
| CN201060962Y (en) * | 2007-06-14 | 2008-05-14 | 珠海市共创有限公司 | Temporary earth wire for power line or equipment electric switching operation |
| CN201060963Y (en) * | 2007-06-14 | 2008-05-14 | 珠海市共创有限公司 | Power line or equipment temporary earth wire use management system |
| CN101639913A (en) * | 2009-08-11 | 2010-02-03 | 苏州市普华电力工程有限公司 | Intelligent safety management system for electric network operation |
| CN203277934U (en) * | 2013-02-05 | 2013-11-06 | 江苏省电力公司扬州供电公司 | Grounding wire |
| KR20140114169A (en) * | 2013-03-18 | 2014-09-26 | 삼성전자주식회사 | Apparatus and method for estimating the depth of the buried defect in the substrate |
| JP2014193085A (en) * | 2013-03-28 | 2014-10-06 | Kandenko Co Ltd | Three-phase short-circuit grounding device and grounding method using the same |
| CN204243223U (en) * | 2014-10-28 | 2015-04-01 | 国网山东肥城市供电公司 | Portable type full-automatic spiral earth electrode erecting device |
| CN105226405A (en) * | 2015-10-12 | 2016-01-06 | 国家电网公司 | A kind of reinforced transition earthing device |
| CN205122816U (en) * | 2015-12-05 | 2016-03-30 | 国网浙江省电力公司丽水供电公司 | Flat mouthful of earth clamp of preventing sideslipping |
| CN205122806U (en) * | 2015-11-27 | 2016-03-30 | 国网北京市电力公司 | Grounding wire |
| CN106356654A (en) * | 2016-10-14 | 2017-01-25 | 国网浙江省电力公司岱山县供电公司 | A buckle-type grounding wire operating rod |
| CN205985414U (en) * | 2016-08-31 | 2017-02-22 | 国网河南省电力公司技能培训中心 | Add and hold special locking device of overhead distributing wire action bars |
| CN206486829U (en) * | 2017-02-01 | 2017-09-12 | 李晟隆 | A kind of road construction road stake |
| CN107193239A (en) * | 2017-07-11 | 2017-09-22 | 国网福建省电力有限公司 | Ground line signals monitoring method based on Internet of Things NBIOT technologies |
| CN107201895A (en) * | 2016-03-16 | 2017-09-26 | 张洪新 | A kind of oil plays lower tubular column operation and measures system automatically |
| CN206774695U (en) * | 2017-03-30 | 2017-12-19 | 国网河南禹州市供电公司 | A kind of resident illuminates concentrated gas meter box earthing of casing device |
| CN206947557U (en) * | 2017-06-26 | 2018-01-30 | 陈达 | A kind of grounding resistance improved structure based on demagnetization method |
| CN207542413U (en) * | 2017-10-27 | 2018-06-26 | 大连星航机电设备有限公司 | A kind of fixable flexible earthing or grounding means |
| CN207781914U (en) * | 2018-01-29 | 2018-08-28 | 王春光 | A kind of earthing or grounding means of pressure in power industry, low-voltage network |
| CN108598735A (en) * | 2018-06-07 | 2018-09-28 | 圣耀（集团）有限公司 | A kind of Portable short-circuit grounding wire monitoring platform |
| CN207967336U (en) * | 2018-02-24 | 2018-10-12 | 周睿涵 | A kind of reinforced power grounding pile |
| CN108767715A (en) * | 2018-04-28 | 2018-11-06 | 国网山东省电力公司烟台供电公司 | A kind of transformer substation grounding wire intelligent error preventing operates active management control system and control method |
| CN208157651U (en) * | 2018-04-19 | 2018-11-27 | 杨茹 | A kind of power grounding pile of power engineering |
| CN208433549U (en) * | 2018-04-16 | 2019-01-25 | 广西格瑞特电力科技有限公司 | Duck tongue type C-shaped spiral conducting line earthing clamp |
| CN208478588U (en) * | 2018-07-27 | 2019-02-05 | 国网山东省电力公司东营供电公司 | A ground wire for preventing the ground end from falling off |
| CN208489374U (en) * | 2018-08-06 | 2019-02-12 | 国网湖北省电力有限公司宜昌供电公司 | A device to ensure the effective grounding of the tension car |
| CN109470976A (en) * | 2018-11-09 | 2019-03-15 | 珠海优特电力科技股份有限公司 | Grounding wire device and its condition detection method |
| CN209570830U (en) * | 2019-03-26 | 2019-11-01 | 国网江苏省电力有限公司扬州供电分公司 | Distribution based on Internet of Things is grounded online overall process managing and control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005012756U1 (en) * | 2005-08-12 | 2005-10-27 | Anton Hummel Verwaltungs-Gmbh | In line multi contact electrical plug has an earthing contact that has a coupled radial spring holding arm |
-
2019
- 2019-03-26 CN CN201910233703.1A patent/CN109917712B/en active Active
Patent Citations (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0920079A2 (en) * | 1997-11-24 | 1999-06-02 | IBG Monforts GmbH & Co. | Ground connection of a pipe line |
| JP2001097079A (en) * | 1999-09-29 | 2001-04-10 | East Japan Railway Co | Construction method of reference electrode for determining ground fault and reference electrode for determining ground fault |
| CN201060962Y (en) * | 2007-06-14 | 2008-05-14 | 珠海市共创有限公司 | Temporary earth wire for power line or equipment electric switching operation |
| CN201060963Y (en) * | 2007-06-14 | 2008-05-14 | 珠海市共创有限公司 | Power line or equipment temporary earth wire use management system |
| JP3137341U (en) * | 2007-08-23 | 2007-11-22 | 株式会社 日興工機 | Earthing device |
| CN101639913A (en) * | 2009-08-11 | 2010-02-03 | 苏州市普华电力工程有限公司 | Intelligent safety management system for electric network operation |
| CN203277934U (en) * | 2013-02-05 | 2013-11-06 | 江苏省电力公司扬州供电公司 | Grounding wire |
| KR20140114169A (en) * | 2013-03-18 | 2014-09-26 | 삼성전자주식회사 | Apparatus and method for estimating the depth of the buried defect in the substrate |
| JP2014193085A (en) * | 2013-03-28 | 2014-10-06 | Kandenko Co Ltd | Three-phase short-circuit grounding device and grounding method using the same |
| CN204243223U (en) * | 2014-10-28 | 2015-04-01 | 国网山东肥城市供电公司 | Portable type full-automatic spiral earth electrode erecting device |
| CN105226405A (en) * | 2015-10-12 | 2016-01-06 | 国家电网公司 | A kind of reinforced transition earthing device |
| CN205122806U (en) * | 2015-11-27 | 2016-03-30 | 国网北京市电力公司 | Grounding wire |
| CN205122816U (en) * | 2015-12-05 | 2016-03-30 | 国网浙江省电力公司丽水供电公司 | Flat mouthful of earth clamp of preventing sideslipping |
| CN107201895A (en) * | 2016-03-16 | 2017-09-26 | 张洪新 | A kind of oil plays lower tubular column operation and measures system automatically |
| CN205985414U (en) * | 2016-08-31 | 2017-02-22 | 国网河南省电力公司技能培训中心 | Add and hold special locking device of overhead distributing wire action bars |
| CN106356654A (en) * | 2016-10-14 | 2017-01-25 | 国网浙江省电力公司岱山县供电公司 | A buckle-type grounding wire operating rod |
| CN206486829U (en) * | 2017-02-01 | 2017-09-12 | 李晟隆 | A kind of road construction road stake |
| CN206774695U (en) * | 2017-03-30 | 2017-12-19 | 国网河南禹州市供电公司 | A kind of resident illuminates concentrated gas meter box earthing of casing device |
| CN206947557U (en) * | 2017-06-26 | 2018-01-30 | 陈达 | A kind of grounding resistance improved structure based on demagnetization method |
| CN107193239A (en) * | 2017-07-11 | 2017-09-22 | 国网福建省电力有限公司 | Ground line signals monitoring method based on Internet of Things NBIOT technologies |
| CN207542413U (en) * | 2017-10-27 | 2018-06-26 | 大连星航机电设备有限公司 | A kind of fixable flexible earthing or grounding means |
| CN207781914U (en) * | 2018-01-29 | 2018-08-28 | 王春光 | A kind of earthing or grounding means of pressure in power industry, low-voltage network |
| CN207967336U (en) * | 2018-02-24 | 2018-10-12 | 周睿涵 | A kind of reinforced power grounding pile |
| CN208433549U (en) * | 2018-04-16 | 2019-01-25 | 广西格瑞特电力科技有限公司 | Duck tongue type C-shaped spiral conducting line earthing clamp |
| CN208157651U (en) * | 2018-04-19 | 2018-11-27 | 杨茹 | A kind of power grounding pile of power engineering |
| CN108767715A (en) * | 2018-04-28 | 2018-11-06 | 国网山东省电力公司烟台供电公司 | A kind of transformer substation grounding wire intelligent error preventing operates active management control system and control method |
| CN108598735A (en) * | 2018-06-07 | 2018-09-28 | 圣耀（集团）有限公司 | A kind of Portable short-circuit grounding wire monitoring platform |
| CN208478588U (en) * | 2018-07-27 | 2019-02-05 | 国网山东省电力公司东营供电公司 | A ground wire for preventing the ground end from falling off |
| CN208489374U (en) * | 2018-08-06 | 2019-02-12 | 国网湖北省电力有限公司宜昌供电公司 | A device to ensure the effective grounding of the tension car |
| CN109470976A (en) * | 2018-11-09 | 2019-03-15 | 珠海优特电力科技股份有限公司 | Grounding wire device and its condition detection method |
| CN209570830U (en) * | 2019-03-26 | 2019-11-01 | 国网江苏省电力有限公司扬州供电分公司 | Distribution based on Internet of Things is grounded online overall process managing and control system |
Non-Patent Citations (3)
| Title |
|---|
| 一起电压异常情况分析;万岱巍;;中国高新区(第12期);全文 * |
| 新型钥匙扣式导线端线夹的设计与仿真分析;李岩舟 等;制造业自动化(第11期);全文 * |
| 智能临时接地线管理系统;张军达等;农村电气化(第05期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109917712A (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209570830U (en) | Distribution based on Internet of Things is grounded online overall process managing and control system | |
| CN109946557B (en) | An electronic grounding hook | |
| CN109917712A (en) | A kind of online overall process managing and control system of distribution ground line and its method based on Internet of Things | |
| CN109544884A (en) | Geological Hazards Monitoring wireless sensor network | |
| CN202625675U (en) | Safety monitoring system of tower crane based on tilt monitoring of tower body | |
| CN112357768A (en) | Device and method for monitoring lifting condition of tower material | |
| CN110453970A (en) | A tower system with internal suspension and internal guyed wires for real-time monitoring of tension and inclination | |
| CN209784466U (en) | electronic grounding hook | |
| CN108519632A (en) | One rod-type watermark protocol image monitoring station | |
| CN111007430A (en) | Temporary grounding wire state detection device and method | |
| CN207749833U (en) | The long-distance monitorng device in construction place | |
| CN205028125U (en) | Iron tower telesecurity intelligent monitoring system | |
| CN217264362U (en) | Intelligent monitoring system of holding pole group tower | |
| CN208907807U (en) | A kind of verticality monitoring device | |
| CN208350129U (en) | It is a kind of for bridge security and the monitoring device of maintenance | |
| CN213425858U (en) | Anti-electricity-theft monitoring terminal for high-voltage side line | |
| CN105068493A (en) | Iron tower remote safety intelligent monitoring system | |
| CN212480737U (en) | Pipe network water diversion port monitoring integrated control system | |
| CN209343166U (en) | A kind of municipal manhole cover system of intelligence | |
| CN205959031U (en) | Tower mast monitored control system | |
| CN202693810U (en) | Electronic monitoring system for landslide | |
| CN218153274U (en) | Modular wisdom agricultural observation station | |
| CN205942375U (en) | Pacify automatic system of arranging that arranges | |
| CN211429409U (en) | Rural tourism platform system based on digital interaction technology | |
| CN210983728U (en) | Power transmission tower remote monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |