A kind of anti-external damage early warning device

Abstract

An anti-external damage warning device, which relates to the technical field of power grid auxiliary equipment, includes a cylindrical fuselage and a control circuit, and also includes a support seat and a pan / tilt; the support seat is connected to the top of the fuselage, the support seat has a middle hole, and the pan / tilt is movably connected to the middle hole through a central axis column; a bearing is provided in the middle hole, so that the central axis column is movably connected to the support seat; a support base plate is also fixedly connected to the support seat at the lower part of the support seat, the support base plate is lower than the edge of the upper mouth of the fuselage, a driving motor is provided on the bottom surface of the support base plate, the output shaft of the driving motor passes through the support base plate and extends to the top surface of the support base plate, a driving wheel is connected to the extended output shaft, and the driving wheel is connected to the driving wheel of the central axis column through a transmission belt. It can perform omnidirectional environmental monitoring and omnidirectional sound wave collection, thereby realizing reliable protection of cables.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid auxiliary equipment, and in particular to an all-weather omnidirectional monitoring and anti-external damage early warning device for underground and ground power equipment and cables in key areas. Background Art

[0002] With the development of urban construction, the cabling rate of urban distribution networks has been continuously increasing. With the large-scale development of excavation operations such as road reconstruction and municipal engineering construction, accidents of cable damage by external forces have occurred frequently, causing public distribution network lines to trip, seriously endangering the safety of the power grid, affecting the orderly use of electricity in all sectors of society, and causing serious economic losses.

[0003] In the prior art, in order to prevent cables in key areas from being damaged by external forces, methods such as periodic inspections and on-site guarding by operation and maintenance personnel are usually adopted. This is not only time-consuming and labor-intensive, inefficient, but also has high labor costs, resulting in excessive construction costs.

[0004] To this end, the applicant has filed patent applications for "CN 208622383 U, Cable Warning Post, hereinafter referred to as D1" and "CN108682098 A, A Cable Anti-External Breakage Monitoring Alarm System and Its Working Method, hereinafter referred to as D2". These two cases have initially formed the "cable sentinel" function of monitoring and early warning in key areas. However, in actual application, we found the following defects:

[0005] 1) Although D1 can realize the lifting function in structure, its monitoring direction is single and can only monitor in a single direction.

[0006] 2) D2 proposed a more comprehensive solution for the anti-external damage device from a system perspective. The core is to use the two indicators of sound pattern and vibration to determine whether the system is activated or not.

[0007] The actual situation is that unauthorized construction vehicles will approach the key areas that need to be monitored from different directions. We found that there is a directional requirement for sound collection, which resulted in the two previous applications failing to achieve the "high-fidelity" sound collection requirement and failing to achieve omnidirectional image collection of the site. Summary of the invention

[0008] In view of the above problems, the present invention provides an anti-external damage warning device capable of performing omnidirectional environmental monitoring and omnidirectional sound wave collection.

[0009] The technical solution of the present invention is:

[0010] An anti-external damage warning device includes a cylindrical body and a control circuit.

[0011] It also includes a support stand and a gimbal;

[0012] The support base is connected to the top of the fuselage, and the support base has a middle hole, and the gimbal is movably connected in the middle hole through a central axis column;

[0013] The pan head comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, a mounting plate is provided at the lower part of the lower shell, and a mounting hole is opened on the mounting plate;

[0014] The central axis column is provided with a threaded section 1, a gap section, a threaded section 2, a column and a transmission wheel with increasing outer diameter from top to bottom. The outer diameter of the threaded section 2 is larger than the inner diameter of the mounting hole, so that the threaded section 1 of the central axis column passes through the mounting hole from bottom to top, and the gap section is in gap fit with the mounting hole. Axial positioning nuts 1 and axial positioning nuts 2 are respectively provided on the threaded section 1 and the threaded section 2, so that the central axis column is fixedly connected to the lower shell;

[0015] The column body of the central axis column passes through the central hole of the support seat, and a bearing is arranged in the central hole, so that the central axis column is movably connected to the support seat;

[0016] A support base is fixedly connected to the support base at the lower part of the support base, the support base is lower than the edge of the upper part of the fuselage, a driving motor is arranged on the bottom surface of the support base, the output shaft of the driving motor passes through the support base and extends to the top surface of the support base, a driving wheel is connected to the extended output shaft, and the driving wheel is connected to the driving wheel of the central axis column through a transmission belt;

[0017] The driving motor is connected to the control circuit.

[0018] The upper shell of the pan / tilt head has a top plate, and a top cover is arranged on the top plate, with a gap left between the top cover and the top plate; a plurality of holes and grooves connected to the inner cavity of the upper shell are opened on the plate surface of the top plate, and an omnidirectional sound wave collection structure is provided outside the holes and grooves.

[0019] The omnidirectional sound wave collection structure includes at least two concentric ring structures, and the top edges of the concentric rings are lower than the bottom surface of the top cover.

[0020] The sides of the concentric ring structure are evenly provided with gaps.

[0021] The gap is in the odd number.

[0022] A circuit bearing structure is provided in the upper shell of the pan / tilt head, and the control circuit is fixedly arranged on the circuit bearing structure.

[0023] The invention provides an anti-external damage warning device, which uses a support seat on a fuselage as a rotation base, and rotatably connects the pan / tilt head to the fuselage through a central axis column, so that the pan / tilt head can capture surrounding environment information in 360° all-directional manner, detect the approach of dangerous sources in time and issue a warning, thereby achieving reliable protection of cables.

[0024] On the other hand, the gimbal can also be equipped with an omnidirectional sound wave collection structure to capture ambient sounds in all directions and filter out messy sound wave signals, so that the early warning device can accurately identify ambient sounds, promptly identify illegally approaching engineering vehicles and issue an alarm.

[0025] The use of the present invention eliminates the excessive reliance on manpower in the cable protection process, thereby effectively reducing inspection and backtracking costs; the present invention can also use solar energy as energy to achieve energy self-sufficiency, avoiding complex wiring operations and enabling it to adapt to various complex and remote usage environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional schematic diagram of the present invention,

[0027] Figure 2 It is a structural schematic diagram of the present invention,

[0028] Figure 3 is a three-dimensional schematic diagram of the pan / tilt platform of the present invention,

[0029] Figure 4 is a schematic diagram of the structure of the pan / tilt platform in the present invention,

[0030] Figure 5 It is a structural schematic diagram of the central axis column in the present invention,

[0031] Figure 6 is a schematic diagram of the internal structure of the gimbal in the present invention,

[0032] Figure 7 is an exploded view of the present invention,

[0033] Figure 8 is a schematic diagram of the omnidirectional sound wave collection structure in the present invention,

[0034] Fig. 9 It is a system block diagram of the present invention.

[0035] In the figure: 1- fuselage;

[0036] 2-support seat, 21-support base plate, 210-collector ring, 22-bearing;

[0037] 3-pan head, 31-upper shell, 311-top plate, 3110-hole slot, 32-lower shell, 321-mounting plate, 322-mounting column, 33-top cover;

[0038] 40-circuit board, 41-solar panel, 42-camera, 43-warning light, 44-voice announcer, 45-omnidirectional sound wave collection structure, 450-gap;

[0039] 5-central shaft column, 51-transmission wheel, 521-thread segment 1, 522-gap segment, 523-thread segment 2, 524-column, 53-axial positioning nut 1, 54-axial positioning nut 2;

[0040] 61-driving motor, 62-driving wheel, 63-transmission belt. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-9 , further illustrating the present invention.

[0042] The present invention provides an anti-external damage warning device, comprising a cylindrical body 1 and a control circuit.

[0043] It also includes a support base 2 and a pan head 3;

[0044] The support base 2 is connected to the top of the fuselage 1, and the support base 2 has a central hole, and the gimbal 3 is movably connected to the central hole of the support base 2 through a central axis column 5;

[0045] The pan head 3 includes an upper shell 31 and a lower shell 32. The upper shell 31 and the lower shell 32 are detachably connected. A mounting plate 321 is provided at the lower part of the lower shell 32. A mounting hole is provided on the mounting plate 321.

[0046] The central axis column 5 is provided with a threaded section 1 521, a gap section 522, a threaded section 2 523, a column 524 and a transmission wheel 51 with increasing outer diameters from top to bottom. The outer diameter of the threaded section 2 523 is larger than the inner diameter of the mounting hole, so that the threaded section 1 521 of the central axis column 5 passes through the mounting hole from bottom to top, and the gap section 522 is in gap with the mounting hole. The threaded section 1 521 and the threaded section 2 523 are respectively provided with an axial positioning nut 1 53 and an axial positioning nut 2 54, so that the central axis column 5 is fixedly connected to the lower housing 32.

[0047] The column body 524 of the central axis column 5 passes through the central hole of the support seat 2, and a bearing 22 is arranged in the central hole, so that the central axis column is movably connected to the support seat 2;

[0048] A support base plate 21 is fixedly connected to the support base 2 at the lower part of the support base 2. The support base plate 21 is lower than the edge of the upper opening of the fuselage 1. A driving motor 61 is arranged on the bottom surface of the support base plate 21. The output shaft of the driving motor 61 passes through the support base plate 21 and extends to the top surface of the support base plate 21. A driving wheel 62 is connected to the extended output shaft. The driving wheel 62 is connected to the driving wheel 51 of the central shaft column 5 through a driving belt 63.

[0049] The driving motor 61 is connected to the control circuit. The control circuit is connected to the single chip microcomputer, the camera 42, the sound wave acquisition module and the early warning module; the early warning module is used to alarm and remind people to stay away when the dangerous source is approaching; the sound wave acquisition module adopts a four-channel type, which is used for sound collection, filtering and sound positioning. The early warning module is one or more of a buzzer, a warning light 43, and a voice announcer 44, which is used to send early warning signals such as buzzers, lights or voice alarms to the dangerous source.

[0050] In the standby state, the pan / tilt 3 does not rotate; when the confidence interval of the recognized environmental sound is greater than a specific value, such as 70%, the microcontroller is fed to instruct the pan / tilt 3 to rotate one circle, and at the same time the camera 42 moves, captures or continuously shoots environmental images, and the alarm module sends an alarm signal. The device of the present invention can also be connected to the management background through wireless communication technology, so that the management personnel of the background can obtain the on-site information in time, and timely discover and rush to the scene to stop the strong damage caused by external force.

[0051] The pan-tilt head 3 can also be fixedly connected to a solar panel 41, which is used to charge the battery in the fuselage 1, so as to realize energy self-sufficiency of the early warning device. The control circuit is also provided with an AD acquisition module, which is connected to the single-chip microcomputer; the AD acquisition module is used to collect the battery voltage, current, and solar voltage and send them to the single-chip microcomputer, so that the solar panel can track the sun. The central axis column 5 also has a central hole for exporting cables, and the exported cables are used to connect the collector ring 210, which is used for the transition from the cable rotation position to the cable fixed position; the cables above the collector ring 210 are respectively connected to the solar panel 41 and the pan-tilt head 3, and rotate with the pan-tilt head 3, and the cables below the collector ring 210 are connected to the battery, the solar panel 41 generates electricity and stores the electricity in the battery, and the electricity in the battery is used to supply the pan-tilt head 3 and drive the motor 61 to operate.

[0052] The upper shell 31 of the pan / tilt head 3 has a top plate 311, on which a top cover 33 is arranged, with a gap between the top cover 33 and the top plate 311; the top cover 33 is used to cover the bolt mounting holes of the early warning device to prevent rust and disassembly; a number of holes 3110 connected to the inner cavity of the upper shell 31 are opened on the plate surface of the top plate 311, and the holes 3110 are used for sound wave conduction and heat dissipation; an omnidirectional sound wave collection structure 45 is provided on the outside of the holes 3110.

[0053] The omnidirectional sound wave collection structure 45 includes at least two concentric ring structures, and the top edge of the concentric ring is lower than the bottom surface of the top cover 33. The concentric ring structure can be a complete ring, or can be arranged in a plurality of dispersed arc segments.

[0054] The side surfaces of the concentric ring structures are uniformly provided with gaps 450 .

[0055] The notch 450 is odd in number, which, on the one hand, prevents the sound entering from the notch 450 from being directly transmitted out from the opposite direction and dispersing the sound wave energy; on the other hand, the odd notch 450 allows the sound wave to reflect and oscillate between several concentric ring structures, thereby reducing noise and improving the fidelity of the sound wave.

[0056] A circuit bearing structure is provided in the upper housing 31 of the pan / tilt head 3, and the control circuit is fixedly arranged on the circuit bearing structure. The circuit bearing structure is fixedly connected to the mounting plate 321 through the mounting column 322, and a three-layer circuit board 40 is arranged on the circuit bearing structure, which includes a microphone receiving board, an IO board, and a control board from top to bottom.

[0057] Regarding the contents disclosed in this case, there are a few points that need to be explained:

[0058] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0059] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to obtain new embodiments;

[0060] The above are only specific implementation methods disclosed in this case, but the protection scope of this disclosure is not limited thereto. Any changes made to certain technical features therein by those skilled in the art based on the contents disclosed in this case should fall within the protection scope of this case.

Claims

1. An anti-external damage warning device, comprising a cylindrical body and a control circuit, characterized in that: It also includes a support stand and a gimbal; The support base is connected to the top of the fuselage, and the support base has a middle hole, and the gimbal is movably connected in the middle hole through a central axis column; The pan head comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, a mounting plate is provided at the lower part of the lower shell, and a mounting hole is opened on the mounting plate; The central axis column is provided with a threaded section 1, a gap section, a threaded section 2, a column and a transmission wheel with increasing outer diameter from top to bottom. The outer diameter of the threaded section 2 is larger than the inner diameter of the mounting hole, so that the threaded section 1 of the central axis column passes through the mounting hole from bottom to top, and the gap section is in gap fit with the mounting hole. Axial positioning nuts 1 and axial positioning nuts 2 are respectively provided on the threaded section 1 and the threaded section 2, so that the central axis column is fixedly connected to the lower shell; The body of the central axis column passes through the central hole of the support seat, and a bearing is arranged in the central hole, so that the central axis column is movably connected to the support seat; A support base is fixedly connected to the support base at the lower part of the support base, the support base is lower than the edge of the upper part of the fuselage, a driving motor is arranged on the bottom surface of the support base, the output shaft of the driving motor passes through the support base and extends to the top surface of the support base, a driving wheel is connected to the extended output shaft, and the driving wheel is connected to the driving wheel of the central axis column through a transmission belt; The driving motor is connected to the control circuit; The upper shell of the pan / tilt head has a top plate, a top cover is arranged on the top plate, and a gap is left between the top cover and the top plate; a plurality of holes and grooves connected to the inner cavity of the upper shell are opened on the plate surface of the top plate, and an omnidirectional sound wave collection structure is arranged outside the holes and grooves; The omnidirectional sound wave collection structure includes at least two concentric ring structures, and the top edges of the concentric rings are lower than the bottom surface of the top cover; the concentric rings are complete rings or dispersed arc segments; The sides of the concentric ring structure are uniformly provided with notches; The notch is odd in number, which is used to prevent the sound entering from the notch from being directly transmitted from the opposite direction and dispersing the sound wave energy. The odd notch allows the sound wave to reflect and oscillate between several concentric ring structures, thereby reducing noise and improving the fidelity of the sound wave.

2. The anti-external damage warning device according to claim 1, characterized in that: A circuit bearing structure is provided in the upper shell of the pan / tilt head, and the control circuit is fixedly arranged on the circuit bearing structure.

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