Automatic alarm device for inclination of telegraph pole

Abstract

The invention relates to the field of power maintenance equipment, in particular to a wire pole inclination automatic alarm device which comprises a sliding box internally provided with a sliding block, a detection box provided with an electromagnetic iron core in the center and a main control box. A detection ring is arranged on the outer side of the electromagnetic iron core, and detection devices for detecting the positions of the sliding blocks are evenly arranged on the detection ring. And a power supply module, a controller and a communication module are arranged in the main control box. Whether the electric pole inclines or not is judged by detecting whether the detection device acts or not. Inclination and toppling of the equipment can be detected in time and sent to inspection and maintenance personnel through the communication module. Meanwhile, after inclination occurs, a power supply is started, detection and determination are carried out again, and then the information is sent to inspection and maintenance personnel, so that the beneficial effects of saving electric energy consumption and prolonging standby time are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance, in particular to an automatic alarm device for the tilting of a power pole. Background Art

[0002] Transmission lines are an important part of the power system to achieve power transmission. For low-voltage transmission lines, overhead lines are the most common transmission method, and the main supporting structure of overhead lines is the electric pole. The pole plays the role of carrying the wire to keep the live wire at a safe distance from the ground. However, when the ground soil changes or the weather is windy, the pole is prone to collapse, or when external force construction or super-high vehicles pass, it is easy to cause the pole to be dragged and tilted or even collapsed, which is very likely to cause accidental hitting or electric shock accidents. At present, the detection of pole tilt is mainly carried out during the inspection of power lines. During the line inspection, the inspectors generally observe the tilt angle of the pole with the naked eye, so the accuracy of the inspection detection is explained, and the inspectors need to arrive at the scene, which is time-consuming and laborious. Ultimately, the tilted inductor cannot be discovered in time, and the hidden dangers cannot be eliminated in time, resulting in accidents. Therefore, it has become an urgent requirement to design an automatic alarm device for pole tilt that automatically detects the tilt of the pole and actively alarms. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic alarm device for the inclination of a power pole which can automatically detect the inclination of the power pole and actively give an alarm.

[0004] The technical solution to the technical problem to be solved by the present invention is: an automatic alarm device for the tilt of a utility pole, comprising a sliding box, a detection box, and a main control box. A sliding block wrapping a trigger block is arranged inside the sliding box; an electromagnet core is arranged at the center of the detection box, and a detection ring is arranged outside the electromagnet core; a power module, a controller, and a communication module are arranged inside the main control box, and the controller is electrically connected to the electromagnet core and the detection ring; and detection devices for detecting the position of the sliding block are evenly arranged on the detection ring.

[0005] Preferably, the trigger block is a magnet and the detection device is a Hall sensor.

[0006] Preferably, the trigger block is an iron block, and the detection device is an eddy current induction switch.

[0007] Preferably, the trigger block is a magnet, the detection device comprises detection holes evenly distributed on a detection ring, static contacts are installed at the lower part of the detection ring on both sides of the detection holes, and an I-shaped moving contact is slidably arranged in the detection hole.

[0008] Preferably, the static contacts of the detection device closest to the electromagnet core are connected in parallel to form a start switch, and the start switch triggers the start control circuit; the start control circuit includes a first relay and a first delay relay. The normally open contact of the first relay, the coil winding of the first relay, and the delayed disconnection normally closed contact of the first delay relay are connected in series and then connected to the power supply; the start switch is connected in parallel with the normally open contact of the first relay; the coil winding of the first delay relay is connected in parallel with the coil winding of the first relay; the normally open contact of the first relay is connected in series between the controller and the power module.

[0009] Preferably, a photovoltaic panel is disposed on the upper portion of the sliding box, and the photovoltaic panel is electrically connected to the power module.

[0010] Preferably, a spirit level is provided on the upper portion of the sliding box, evenly distributed leveling holes are provided on the edge of the sliding box, leveling bolts are provided inside the leveling holes, and screw holes are provided at positions of the detection box corresponding to the leveling holes.

[0011] Preferably, the controller detects the action signals of all detection devices, and determines the tilt direction according to the action of the detection devices; then, the electromagnet core is started, and a gradually increasing current is applied to the electromagnet core until all the detection devices are reset; application of current to the electromagnet core is stopped, and the action of the detection devices is detected again; at this time, if no action of the detection device is detected, it means that an abnormal impact may have occurred, and no tilt has occurred; if the action of the detection device is detected, it means that a tilt has occurred, and an alarm signal is issued; and the angle of the tilt is determined according to the size of the recorded current; if all the detection devices cannot be reset, it means that the pole has fallen.

[0012] Better yet, when tilt or vibration occurs and causes the sliding block to move, the first circle detection device outside the electromagnetic core is activated and the controller is started at the same time. After the controller is started, a gradually increasing current is applied to the electromagnetic core until the sliding block is reset; the application of current to the electromagnetic core is stopped, and the detection device that is in action is detected again; at this time, if the detection device is not detected to be in action, it means that it may have been subjected to an abnormal impact and no tilt has occurred; if the detection device is detected to be in action, it means that a tilt has occurred and an alarm signal is issued; and the angle of the tilt is determined based on the size of the recorded current; if all the detection devices cannot be reset, it means that the pole has fallen.

[0013] Preferably, the time for delayed disconnection of the first delay relay is greater than the total time for the controller to detect the tilt state and issue an alarm message.

[0014] The beneficial effects of the present invention are:

[0015] 1. The tilt and fall of the equipment can be detected in time and sent to the patrol and maintenance personnel through the communication module.

[0016] 2. After the tilt occurs, the power is turned on and the detection is confirmed again, and then sent to the inspection and maintenance personnel. At this time, the consumption of electric energy can be greatly saved, and the beneficial effect of zero power consumption is maintained in the standby state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of a detection ring of the present invention.

[0019] Figure 3 It is a schematic diagram of a detection ring of the present invention.

[0020] Figure 4 It is a schematic diagram of a control circuit of the present invention.

[0021] In the figure: KT1, first time delay relay; KM1, first relay; Ss, start switch; 223, moving contact; 120, trigger block; 222, static contact; 221, detection hole; 300, main control box; 220, detection ring; 210, electromagnet core; 200, detection box; 110, sliding block; 100, sliding box; DETAILED DESCRIPTION

[0022] In order to make the technical solutions and beneficial effects of the present invention clearer, the embodiments of the present invention are further explained in detail below.

[0023] The automatic alarm device for the inclination of a power pole includes a sliding box 100, a detection box 200 and a main control box 300. The sliding box 100 is used to detect whether there is inclination or vibration. The detection box 200 is used to convert the detected inclination or vibration into an electrical signal. The main control box 300 mainly includes electrical components for data processing and control. The main control box 300 is provided with a power module, a controller and a communication module. The power module can be a battery and a voltage conversion module. The voltage conversion module can adopt a DC / DC converter, and the voltage of the battery is converted into a voltage adapted by the controller through the voltage conversion module. The communication module is used to transmit the signal to the dispatching system or the terminal of the maintenance personnel. The communication module can adopt a 4G communication module, a 5G communication module or an NB-IoT Internet of Things communication module.

[0024] The sliding box 100 is a box body with a smooth inner wall, and a sliding block 110 is arranged inside the box body. The sliding block can slide freely inside the sliding box. In order to trigger the detection device, the sliding block is wrapped with a trigger block 120 inside, and the trigger block 120 can be an iron block or a permanent magnet.

[0025] In order to reduce the size of the storage battery, a photovoltaic panel is provided on the upper part of the sliding box 100. The photovoltaic panel is electrically connected to the power module, and the power module has the function of charging the storage battery.

[0026] The sliding box, the detection box and the control box can be formed in one piece, that is, three cavities are set in one piece. The three can also be set independently and fixed together to achieve a modular design and provide convenience for repair and maintenance.

[0027] Furthermore, when independently provided, a level is provided on the upper part of the sliding box. The edge of the sliding box is provided with evenly distributed leveling holes. The leveling holes are variable diameter holes, with small apertures at both ends and large apertures in the middle, and the cavity in the middle is used to prevent the leveling bolts. Accordingly, the detection box 200 is provided with screw holes at positions corresponding to the leveling holes. The bolts are screwed to the screw holes, and the adjustment of a support point of the sliding box is achieved by rotating the amount of the bolts inserted, thereby achieving the adjustment of the horizontality of the sliding box.

[0028] The detection box 200 is provided with an electromagnet core 210 and a detection ring 220. The electromagnet core 210 is arranged at the center of the detection box 200, and can realize the adsorption and fixation of the sliding block 110. If the trigger block is an iron block, the trigger block can be adsorbed to the center position by energizing the electromagnet core 210. Then the power supply is disconnected to keep it in the center of the sliding box 100. If the trigger block is a permanent magnet, the sliding block 110 will be adsorbed on the iron core of the electromagnet core during the installation process. Since the electromagnet core includes an iron core and a coil winding wound on the outside of the iron core, the permanent magnet can be adsorbed on the fixed iron core. The permanent magnet adopts a weak magnetic magnet to prevent the small angle tilt from being undetectable due to excessive suction. Based on this principle, the magnetic size of the permanent magnet can be set to determine the threshold value of the detection tilt angle, and no alarm signal is issued within the range of a small angle. At this time, if the tilt angle of the pole is less than the set threshold, no alarm signal is issued. The threshold is the maximum tilt angle of the pole under the safe operation state of power transmission.

[0029] In order to detect the position of the sliding block 110 after sliding or being hit, which position reflects the tilt direction and angle of the pole, a detection ring 220 is arranged outside the electromagnet core 210, and detection devices for detecting the position of the sliding block 110 are evenly arranged on the detection ring 220.

[0030] When the trigger block 120 is an iron block, the detection device is an eddy current induction switch. At this time, detection holes are evenly distributed on the detection ring 220, and the eddy current induction switch is embedded inside the detection hole. The output end of the eddy current induction switch is electrically connected to the controller.

[0031] When the trigger block 120 is a magnet, the detection device is a Hall sensor. In this case, detection holes are evenly distributed on the detection ring 220, and the Hall sensor is embedded inside the detection hole. The signal output end of the Hall sensor is electrically connected to the controller.

[0032] Alternatively, when the trigger block is a magnet, the detection device includes detection holes 221 evenly distributed on the detection ring 220. Static contacts 222 are installed at the lower part of the detection ring 220 located on both sides of the detection hole 221, and an I-shaped moving contact 223 is slidably arranged in the detection hole 221. The static contact is a conductive metal block fixed at the lower part of the detection ring 220. There are two static contacts, and the two static contacts are electrically connected to the controller, one of which is connected to the signal input common end, and the other static contact is connected to the interface of the signal input end. The moving contact can be made of metal iron. Alternatively, the moving contact is made of plastic material, and an iron sheet is embedded in the upper part of the moving contact, and the suction force of the trigger block is used to trigger the movement of the moving contact. At the same time, two electrically connected conductive metal blocks are arranged at the position of a static contact at the lower part of the moving contact. When the moving contact is adsorbed and rises, the moving contact conducts and connects two static contacts.

[0033] Each pair of static contacts is equivalent to a position signal. The controller determines the position of the sliding block by detecting a set of static contacts that are turned on, and then determines the tilt direction of the pole.

[0034] Furthermore, in order to achieve a better energy-saving effect, the static contacts of the detection device in the nearest circle around the electromagnet core 210 are connected in parallel to form a start switch Ss. That is, in a group of static contacts of the detection device in the first circle outside the electromagnet core 210, the static contacts on the right side of each pair of static contacts are short-circuited, and the static contacts on the left side are short-circuited. At this time, as long as there is a tilt in any direction, the start switch Ss will be closed. The start switch Ss is used to trigger the start control loop and send an action signal to the controller.

[0035] The start control circuit includes a first relay KM1 and a first delay relay KT1. The normally open contact of the first relay KM1, the coil winding of the first relay KM1, and the delayed disconnection normally closed contact of the first delay relay KT1 are connected in series and then connected to the power supply. The start switch Ss is connected in parallel with the normally open contact of the first relay KM1; the coil winding of the first delay relay KT1 is connected in parallel with the coil winding of the first relay KM1. The normally open contact of the first relay KM1 is connected in series between the controller and the power module. The first relay KM1 can select a relay with multiple normally open contacts. One of the normally open contacts is used to control the power supply of the controller, that is, after the normally closed contact is closed, the controller starts to run. The other normally open contact is connected to the interface of the input end of the controller to determine whether a tilt or impact has occurred. At this time, based on the above circuit structure, zero power consumption in the standby state can be achieved. That is, in the absence of tilt or impact, the controller and other electrical components will not be powered on, so no power consumption will be generated, which has a very good energy-saving effect. For equipment that is independent and in a remote environment, maintenance can be reduced.

[0036] The controller detects the data of its input interface in real time, and then obtains the signal of the detection device in real time. Each detection device corresponds to an input interface, and each input interface corresponds to a set of data, including the number, position and other information of the detection device. At this time, the action of the detection device can be detected in real time during the operation of the controller. That is, when the sliding block 110 slides to the upper part of the detection device, the detection device moves, and the controller obtains the action signal of the detection device after the detection device moves. Then, the position information of the detection device is queried in the database or memory, that is, the length and angle of the detection device from the center, where the zero degree of the angle is customized according to the actual situation, and the direction of the tilt can be determined according to the position of the detection device.

[0037] During the sliding process of the sliding block 110, it may pass through multiple detection devices. At this time, a sliding trajectory of the sliding block 110 can be determined and generated. Each point in the sliding trajectory is the position of the detection device, and the action time of the detection device is associated, so that the movement speed and acceleration of the sliding block 110 can be determined. At the same time, it can be determined according to the changes in the motion trajectory whether the state is gradual tilt or instantaneous tilt caused by impact. For example, when the motion trajectory is gradually moving to the next detection device, it means that tilt has occurred. For another example, when it moves in one direction and then resets and moves in the opposite direction, it means that a major collision may have occurred, such as a high-speed vehicle hitting a pole. During the collision, it slides in the opposite direction of the collision under the action of inertia, and slides in the tilted direction after the collision is completed.

[0038] After determining the tilt direction, it is necessary to detect the tilt angle. To determine whether inspection and maintenance are required. After detecting the action of the detection device and after the sliding block 110 slides to the edge, the controller starts the electromagnet core 210 to adsorb the sliding block 110 to its original position by magnetic attraction. Since the magnitude of the component force on the inclined surface is different due to the different tilt angles, different suction forces need to be applied to pull it back to its original position. At this time, the tilt angle can be determined according to the magnitude of the suction force. Specifically, the tilt angle and the applied current can be collected before leaving the factory, and each angle corresponds to an applied current, and then the above data is stored in the memory in the controller. After the sliding block 110 is pulled back to its original position, the above-mentioned angle and current correspondence table is queried according to the magnitude of the applied current, and then the tilt angle is determined.

[0039] After detecting that no detection device moves, it can be determined that the sliding block returns to the original position.

[0040] In order to improve the accuracy of detection, avoid false movements caused by simple collisions. For example, after a slight collision, only sliding due to inertia occurs, and the pole remains in its original vertical state, a false alarm may occur. After the sliding block 110 is restored to its original position, the controller stops applying current to the electromagnet core 210. At this time, if the sliding block 110 slides again, or slides to its original position, it means that the pole has irreversibly tilted. In this case, the tilt alarm information is sent to the maintenance personnel through the communication module. If the sliding block remains in place after the electromagnet core 210 loses current, it means that the pole has not tilted, and a collision may have occurred. In this case, an alarm message that the pole may have been hit is generated. Therefore, the maintenance personnel can determine the emergency situation of the situation based on the above information and arrange the maintenance tasks according to the emergency situation. After stopping the application of current, if sliding occurs again, the current is reapplied and reset, and the magnitude of the applied current is determined and recorded. After that, the average value can be calculated based on the two current values ​​and the tilt angle can be queried based on the average value, or the tilt angle can be queried based on the current recorded for the first time.

[0041] In extreme cases, the pole may topple over, and the suction force applied by the electromagnet core needs to be greater than the gravity of the sliding block 110. When the maximum suction force of the electromagnet core 210 is less than the gravity of the sliding block 110, the sliding block cannot be reset, and it can be determined that the pole has toppled. Alternatively, if the suction force output by the maximum load of the electromagnet core 210 can be greater than the gravity of the sliding block 110, it can be determined that the pole has toppled when the applied current is greater than a certain set value, and an alarm message of the pole toppling is issued. When receiving this information, maintenance personnel need to rush to the scene in time to deal with it. In the case where the power of the electromagnet core is very large, when data collection is performed and a corresponding table of angles and currents is generated, the current of the reset sliding block in the toppled state is recorded.

[0042] Further, in order to achieve a better energy-saving effect, when tilt or vibration occurs and causes the sliding block to move, the first circle detection device outside the electromagnet core 210 is first activated. Based on the above technical solution of connecting the static contacts of the first circle detection device outside the electromagnet core 210 in parallel, when the first circle detection device outside the electromagnet core 210 is not activated, all electrical components are in a power-off state. After detecting that the first circle detection device outside the electromagnet core 210 is activated, the power supply is started and the controller is started at the same time. After the controller is started, the tilt state detection is performed, that is, after the controller is started, a gradually increasing current is applied to the electromagnet core 210 until the sliding block 110 is reset. The first circle detection device outside the electromagnet core 210 is used as a control switch of the power supply and also as a signal output end of the detection device. After detecting that the detection device is activated, the electromagnet core 210 is activated to reset the sliding block, and then the current is stopped from being applied to the electromagnet core 210, and the activated detection device is detected again to determine the angle and direction of the tilt.

[0043] Preferably, the time for the first delay relay KT1 to be disconnected is longer than the total time for the controller to detect the tilt state and send out an alarm message, thereby ensuring that the controller has enough time to determine the tilt angle and tilt direction of the pole.

[0044] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Through the above description, relevant staff can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification. All so-called equal changes and modifications of the shapes, structures, features and spirits described in the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Automatic alarm device for pole tilt, characterized by: include: A sliding box (100) having a sliding block (110) enclosing a trigger block (120) disposed therein; A detection box (200) is provided with an electromagnet core (210) at the center, and a detection ring (220) is provided on the outside of the electromagnet core (210); A main control box (300) is provided with a power module, a controller and a communication module, wherein the controller is electrically connected to the electromagnet core (210) and the detection ring (220); Detection devices for detecting the position of the sliding block (110) are evenly arranged on the detection ring (220).

2. The automatic alarm device for pole tilt according to claim 1 is characterized in that: The trigger block (120) is a magnet, and the detection device is a Hall sensor.

3. The automatic alarm device for pole tilt according to claim 1 is characterized in that: The trigger block (120) is an iron block, and the detection device is an eddy current induction switch.

4. The automatic alarm device for pole tilt according to claim 1 is characterized in that: The trigger block is a magnet, and the detection device comprises detection holes (221) evenly distributed on a detection ring (220), static contacts (222) are installed at the lower part of the detection ring (220) located on both sides of the detection holes (221), and an I-shaped moving contact (223) is slidably arranged in the detection hole (221).

5. The automatic alarm device for pole tilt according to claim 4 is characterized in that: The static contacts of the detection devices closest to the electromagnet core (210) are connected in parallel to form a start switch (Ss), and the start switch (Ss) triggers a start control loop; The start control circuit includes a first relay (KM1), a first time delay relay (KT1), The normally open contact of the first relay (KM1), the coil winding of the first relay (KM1), and the delayed disconnecting normally closed contact of the first delay relay (KT1) are connected in series and then connected to a power supply; The start switch (Ss) is connected in parallel with the normally open contact of the first relay (KM1); the coil winding of the first time delay relay (KT1) is connected in parallel with the coil winding of the first relay (KM1); The normally open contact of the first relay (KM1) is connected in series between the controller and the power module.

6. The automatic alarm device for pole tilt according to any one of claims 1 to 5, characterized in that: A photovoltaic panel is arranged on the upper part of the sliding box (100), and the photovoltaic panel is electrically connected to the power module.

7. The automatic alarm device for pole tilt according to claims 1-5, characterized in that: A level is arranged on the upper part of the sliding box, and evenly distributed leveling holes are arranged on the edge of the sliding box. Leveling bolts are arranged inside the leveling holes, and screw holes are arranged at positions of the detection box (200) corresponding to the leveling holes.

8. The automatic alarm device for pole tilt according to any one of claims 1 to 4, characterized in that: The controller detects the action signals of all the detection devices and determines the tilt direction according to the detection devices in action; then the electromagnet core (210) is started and a gradually increasing current is applied to the electromagnet core until all the detection devices are reset; Stop applying current to the electromagnet core (210) and then detect the action of the detection device again; At this time, if the detection device does not detect the movement, it means that there may be an abnormal impact and no tilt phenomenon occurs; If the detection device is detected to be in motion, it means that tilting has occurred and an alarm signal is issued; and the tilting angle is determined according to the magnitude of the recorded current; If all detection devices cannot be reset, it means that the pole has fallen.

9. The automatic alarm device for pole tilt according to claim 5, characterized in that: When tilt or vibration occurs, causing the sliding block to move, the first circle detection device outside the electromagnet core (210) is activated, and the controller is started at the same time. After the controller is started, a gradually increasing current is applied to the electromagnet core (210) until the sliding block (110) is reset; Stop applying current to the electromagnet core (210) and then detect the action of the detection device again; At this time, if the detection device does not detect the movement, it means that there may be an abnormal impact and no tilt phenomenon occurs; If the detection device is detected to be in motion, it means that tilting has occurred and an alarm signal is issued; and the tilting angle is determined according to the magnitude of the recorded current; If all detection devices cannot be reset, it means that the pole has fallen.

10. The automatic alarm device for pole tilt according to claim 9, characterized in that: The time for the first delay relay (KT1) to delay disconnection is greater than the total time for the controller to detect the tilt state and issue an alarm message.

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