Mining electronic fence for quickly building warning area
By using ultrasonic transducers and piezoelectric ceramic sensors for non-contact detection in coal mine environments, the problem of decreased detection accuracy of video electronic fences in coal mine environments has been solved, achieving high reliability, low cost security protection, and protecting privacy.
Patent Information
- Application Number
- CN202422937037.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing video electronic fences suffer from decreased detection accuracy in coal mining environments, are susceptible to changes in lighting and dust, are costly, and raise privacy concerns.
It employs non-contact detection using ultrasonic transducers and high-precision piezoelectric ceramic sensors. The structure is designed as a rectangular tube assembly, which facilitates disassembly and expansion, eliminates the need for cameras, and reduces costs.
It improves the reliability and stability of detection, reduces the risk of equipment damage, lowers maintenance costs, protects privacy, adapts to harsh environments, and allows for flexible deployment.
Smart Images

Figure CN223808785U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mining equipment technical field, concretely to a kind of electronic fence of mining quick establishment warning area. BACKGROUND
[0002] Electronic fence is an advanced perimeter anti-theft alarm system, mainly by electronic fence host, front-end detection fence and back-end control system are composed of. Electronic fence host generates and receives high-voltage pulse signal, when front-end detection fence is in the state of touch network, short circuit or open circuit, alarm signal will be sent, and the invasion information is sent to security alarm center. This system not only has physical blocking effect, but also can deter potential intruders by sending alarm signal.
[0003] The application range of electronic fence is very extensive, including transformer substation, power plant, water plant, factory, industrial heavy place, mining enterprise, material warehouse, residential area, villa area, school, airport, aquaculture and livestock site, government agency, key cultural relic site, military facility and prison and the place needing fence and safety protection.
[0004] Conventional video electronic fence needs to install a large number of cameras, storage devices and image processing systems, and the cost is high. The price of camera is relatively expensive, and it needs to be matched with storage device and network device to transmit and store image data. In addition, the image processing algorithm of video electronic fence also needs higher computing resources and technical support, which increases the cost.
[0005] Therefore, in view of the above, the existing structure and defects are improved, and an electronic fence for quickly establishing warning area in mine is provided. UTILITY MODEL CONTENT
[0006] The utility model aims at providing an electronic fence for quickly establishing warning area in mine to solve the problems in the above background technology.
[0007] To achieve the above object, the utility model provides the following technical scheme: an electronic fence for quickly establishing warning area in mine, including stand column assembly and warning assembly, the front side surface of stand column assembly is installed with warning assembly, and the bottom end of stand column assembly is installed with base assembly, and the top end of stand column assembly is provided with adapter seat, and the left and right sides of stand column assembly are both connected and installed with horizontal bar assembly, the warning assembly includes ultrasonic transducer, sensing device and assembly frame, the bottom of ultrasonic transducer is installed with sensing device, and the side close to stand column assembly of ultrasonic transducer is connected with assembly frame.
[0008] Further, the stand column assembly includes main column body, butt joint slot and support angle plate, the surface of the upper and lower ends of main column body is provided with butt joint slot, and the left and right sides of main column body are symmetrically installed with support angle plate.
[0009] Further, the main column and the adapter seat are connected by inserting structure and fixed by bolts, and the surfaces of the upper and lower sides of the adapter seat are provided with slot structures matched with the surface structure of one end of the main column, and the one end of the connection between the main column and the adapter seat is provided with a hole for penetrating the bolt.
[0010] Further, the ultrasonic transducer and the inductive device are respectively a spherical transducer and a high-precision piezoelectric ceramic sensor, and the ultrasonic transducer and the main column are connected and fixed by using the assembly frame and the bolt, and the front vertical surface of the main column is provided with a hole matched with the bolt structure.
[0011] Further, the base assembly includes a base, a fixed pile and a plug, the front and rear sides of the base are connected with the fixed pile, and the bottom of the fixed pile is connected with the plug by bolts.
[0012] Further, the base and the fixed pile are integrally arranged, the top of the base is provided with a slot structure matched with the surface structure of one end of the main column, the base and the main column are connected by inserting structure and fixed by bolts, and the one end of the connection between the base and the fixed pile is provided with a hole for penetrating the bolt.
[0013] Further, the cross column assembly includes a reinforcing rib, a cross rod, an electrical contact and a fixed pin, the upper and lower ends of the reinforcing rib are connected with the cross rod, the surface of the side away from the reinforcing rib of the cross rod is provided with the electrical contact, and the left and right ends of the reinforcing rib are penetrated by the fixed pin.
[0014] Further, the cross section of the reinforcing rib is in trapezoidal structure, the reinforcing rib and the cross rod are welded, the cross rod and the butt joint slot are connected by inserting structure and fixed by the fixed pin, and the cross rod and the supporting angle plate are connected and fixed by bolts.
[0015] The utility model provides a kind of electronic fence of mine rapid establishment warning area, with following beneficial effects:
[0016] The utility model discloses, the conventional video electronic fence detects personnel or object through the analysis of picture by camera, this mode is susceptible to light change, shelter, image blur etc. Factor's influence, in the coal mine environment, light is insufficient, dust diffuses etc. Situation is more common, will lead to the detection accuracy of video electronic fence to decline, appears the false alarm or the situation of missing report, therefore the ultrasonic transducer in base assembly carries out non-contact detection with ultrasonic technology, is not affected by light, can penetrate dust etc. Obstacle, the adaptability to environmental change is stronger, and ultrasonic detection has higher reliability and stability, and ultrasonic signal is relatively stable in the propagation process, is not susceptible to external interference, and the sensing device can accurately detect the change of ultrasonic signal, thereby accurately judge whether personnel or object intrudes the electronic fence area, compared with, the image analysis algorithm of video electronic fence can be influenced by complex environment, lead to inaccurate detection result, and non-contact detection mode can also avoid the direct contact of whole fence and personnel or object, reduce the damage risk of equipment, in the coal mine operation, personnel and equipment are more frequent, and the contact type detection equipment is susceptible to collision and damage, and whole fence structure does not need to contact the detected object, can better protect the equipment itself, prolong the service life.
[0017] 2、The utility model discloses, since the column assembly, base assembly, link seat and horizontal fence assembly mutually through the structure on the insertion and the use of bolt, cooperate the use of fixed pin, can carry out the split or combination on structure, utilize the use of above -mentioned structure, on one hand can according to the need of using, with combination connection to each structure, thereby realize the structure extension of different degree, thereby adapt to different use environment and use demand, on the other hand above -mentioned structure makes the combination connection of whole electronic fence, when not influencing the stability of structure connection, still can guarantee the combination flexibility and convenience between structures, thereby ensure the operation efficiency of combination or disassembly when using, since video electronic fence mainly relies on camera monitoring, above -mentioned structure cooperates the use of warning assembly, can avoid the problem that the lens of camera is covered with dust, affects picture quality, humidity can lead to electronic component damage, high temperature and vibration also can influence its stability etc. Problem that the conventional video electronic fence is caused by coal mine environment is bad, is full of dust, humidity, high temperature, vibration etc. Unfavorable factor, compared with, the main body of column assembly and horizontal fence assembly is firm and durable, corrosion -resistant, wear -resistant square tube, can better resist these bad environmental factors, and the warning assembly is specially designed, and the adaptability to environment is stronger, can still keep stable working performance under bad environment, and the flexible and convenient dismounting structure between each structure makes the adaptability to bad environment strong, the maintenance frequency is relatively lower, reduces the maintenance cost and the safety risk caused by equipment failure.
[0018] 3、The utility model discloses, in addition, because the video electronic fence can record and transmit image information, this can involve personnel privacy problem. In the workplace such as coal mine, staff can have higher attention degree to personal privacy. The novel electronic fence only detects the change of ultrasonic signal, is not involved image acquisition, does not record personnel's appearance feature and so on private information, better the protection of personnel privacy, and the privacy protection is also important for enterprise, avoids the dispute and legal risk caused by privacy problem, helps the good image and stable operation of enterprise maintenance, the whole electronic fence structure provides safety protection simultaneously, fully considers the demand of privacy protection, provides more reliable security guarantee for enterprise and staff, in addition, the video electronic fence needs to install a large number of camera, storage device and image processing system, and the cost is higher, and the price of camera is relatively expensive, and needs the storage device and network equipment of supporting to transmit and store image data, in addition, the image processing algorithm of video electronic fence also needs higher computing resource and technical support, increases the cost, and the structure of column assembly, warning assembly, base assembly, link seat and crossbar assembly is relatively simple, and the main part is square tube, ultrasonic transducer, sensing device, and the cost is relatively low, and also has cost advantage in installation and maintenance, adopts the installation of square tube relatively simple, can be customized and installed according to actual demand, reduces installation cost and time, simultaneously, because its adaptability to harsh environment is strong, maintenance frequency is low, and maintenance cost is relatively low, compared with the video electronic fence, the installation and maintenance of professional technical personnel and equipment are needed, and the cost is higher. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the body shaft side view structural schematic drawing of the electronic fence of a mine quick establishment warning area of the utility model;
[0020] Figure 2 It is the column assembly structural schematic drawing of the electronic fence of a mine quick establishment warning area of the utility model;
[0021] Figure 3 It is the three-dimensional structure schematic drawing of the warning assembly of the electronic fence of a mine quick establishment warning area of the utility model;
[0022] Figure 4 It is the three-dimensional structure schematic drawing of the base assembly of the electronic fence of a mine quick establishment warning area of the utility model;
[0023] Figure 5 It is the three-dimensional structure schematic drawing of the crossbar assembly of the electronic fence of a mine quick establishment warning area of the utility model.
[0024] In the figure: 1, column assembly; 101, main column; 102, butt joint notch; 103, support angle plate; 2, warning assembly; 201, ultrasonic transducer; 202, inductive device; 203, assembly frame; 3, base assembly; 301, base; 302, fixed pile; 303, plug; 4, adapter seat; 5, crossbar assembly; 501, reinforcing rib; 502, crossbar; 503, electrical contact; 504, fixing pin. DETAILED DESCRIPTION
[0025] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0026] As Figures 1 to 5 shown, a mine rapid establishment warning area electronic fence, including column assembly 1 and warning assembly 2, the front side surface of column assembly 1 is installed with warning assembly 2, and the bottom end of column assembly 1 is installed with base assembly 3, and the top end of column assembly 1 is provided with adapter seat 4, and the left and right sides of column assembly 1 are both connected and installed with crossbar assembly 5, warning assembly 2 includes ultrasonic transducer 201, inductive device 202 and assembly frame 203, the bottom of ultrasonic transducer 201 is installed with inductive device 202, and the side close to column assembly 1 of ultrasonic transducer 201 is connected with assembly frame 203, ultrasonic transducer 201 and inductive device 202 respectively adopt spherical transducer and high-precision piezoelectric ceramic sensor, and ultrasonic transducer 201 and main column 101 are connected and fixed by using assembly frame 203 and bolt, and the front side vertical surface surface of main column 101 is provided with hole matching with bolt structure, by using assembly frame 203 on one side of ultrasonic transducer 201 of warning assembly 2, cooperating with the use of bolt, it can be directly fixed and installed on the side surface of main column 101, so as to realize rapid combination link.
[0027] As Figures 1 to 5As shown, the column assembly 1 includes a main column 101, a butt joint notch 102 and a support angle plate 103, the upper and lower ends of the main column 101 are provided with butt joint notches 102, and the upper and lower sides of the main column 101 are symmetrically provided with support angle plates 103, the main column 101 and the adapter seat 4 are connected by inserting structure and fixed by bolts, and the upper and lower sides of the adapter seat 4 are provided with slot structures matched with the surface structure of one end of the main column 101, and one end of the adapter seat 4 is provided with a hole for penetrating the bolt, the base assembly 3 includes a base 301, a fixed pile 302 and a plug 303, the front and rear sides of the base 301 are connected with the fixed pile 302, and the bottom of the fixed pile 302 is connected with the plug 303 by bolts, the base 301 and the fixed pile 302 are integrally arranged, and the top of the base 301 is provided with a slot structure matched with the surface structure of one end of the main column 101, and the base 301 and the main column 101 are connected by inserting structure and fixed by bolts, and one end of the base 301 and the fixed pile 302 is provided with a hole for penetrating the bolt, by vertically inserting the lower end of the main column 101 into the top of the base 301, then screwing the plug 303 into the bottom of the fixed pile 302, then connecting and fixing the main column 101 and the base 301 by bolts, and vertically inserting the plug 303 into the ground, to ensure that the entire electronic fence can be stably placed on the ground, avoiding problems such as side inclination.
[0028] As shown, Figures 1 to 5 The crossbar assembly 5 includes a reinforcing rib 501, a crossbar 502, an electrical contact 503 and a fixed pin 504, the upper and lower ends of the reinforcing rib 501 are horizontally connected with the crossbar 502, and the side surface of the crossbar 502 away from the reinforcing rib 501 is provided with an electrical contact 503, and the left and right ends of the reinforcing rib 501 are horizontally penetrated by a fixed pin 504, the cross section of the reinforcing rib 501 is in trapezoidal structure, and the reinforcing rib 501 and the crossbar 502 are welded, and the crossbar 502 and the butt joint notch 102 are connected by inserting structure and fixed by the fixed pin 504, and the crossbar 502 and the support angle plate 103 are connected by bolts, by inserting and connecting one end of the crossbar 502 with the butt joint notch 102 on the surface of the main column 101, then inserting and fixing each other by the fixed pin 504, and then vertically screwing the bolts into the junction of the crossbar 502 and the support angle plate 103, the crossbar assembly 5 and the column assembly 1 can be quickly combined and connected.
[0029] In summary, as shown, Figures 1 to 5As shown, the mine rapid establishment warning area electronic fence, in use, first screw the drill bit 303 in the bottom of the fixed pile 302, then place the entire base assembly 3 on the pre-set installation position, then by inserting the drill bit 303 into the ground, so that the base assembly 3 is firmly fixed to the ground, then the lower end of the main column body 101 is vertically inserted into the top of the base 301, then the base 301 and the main column body 101 are connected and fixed by using bolts, so that the vertical column assembly 1 and the base assembly 3 are quickly combined, then the warning assembly 2 can be installed inside or outside the vertical column assembly 1 as needed, only the mounting hole opposite to the structure of the assembly frame 203 is opened on the surface of the side surface of the main column body 101, then the assembly frame 203 and the side surface of the main column body 101 are connected and fixed by using bolts, so as to ensure the normal operation of the ultrasonic transducer 201 and the induction device 202, then one end of the horizontal rod 502 at the upper and lower ends of the reinforcing rib 501 is inserted into the structure of the butt joint groove 102 at one end of the main column body 101, and the horizontal rod 502 is attached to the surface of the supporting angle plate 103, then the vertical column assembly 1 and the horizontal rod assembly 5 are connected and fixed by using the fixing pin 504 and cooperating with the use of the bolt, in addition, the two groups of main column bodies 101 can be inserted into the upper and lower ends of the connecting seat 4, and the structure is connected in vertical height by cooperating with the use of the bolt, so that the entire electronic fence can be flexibly expanded in structure, so as to meet different needs, and the electrical contact 503 is arranged on the surface of the horizontal rod 502, wherein the electrical contact 503 adopts a gold-plated contact with good elasticity, the diameter is 1.2-1.8mm, the contact resistance is less than 0.08Ω, the physical connection between the devices is stable and reliable, and the electrical signal transmission can be maintained in the harsh environment of the coal mine, the regional control center as the core of the entire system adopts an industrial computer, is responsible for centralized management and control of the electronic fence devices connected to the region, receives alarm information and state data from each device, and analyzes and processes. At the same time, the regional control center can send control instructions to each device to adjust the parameters and working mode of the device, when an electronic fence device detects that a person or object intrudes, the alarm information is quickly transmitted to other devices in the region through the electrical contact 503 connection, and other devices receive the alarm information, and can respond according to the preset rules, such as increasing the detection intensity of itself, sending more detailed alarm information to the regional control center, etc., at the same time, each device can also share its state information such as working mode, power, etc., so as to be comprehensively monitored and managed by the regional control center
[0030] By installing the warning assembly 2 on the front side of the column assembly 1, a certain number of adjustments can be made according to actual setting needs, wherein the ultrasonic transducer 201 selects a spherical transducer, and the beam angle can reach about 150°, which is closer to the requirement of 180-degree radiation in the front-back-up direction; the radiation range can be further optimized by reasonably arranging multiple ultrasonic transducers 201 in cooperation with auxiliary reflection plates and other structures, wherein the operation frequency of the ultrasonic transducer 201 is selected between 38 kHz-42 kHz, which can ensure a certain resolution and achieve a longer propagation distance, and the power can be adjusted within the range of 8W-15W according to the actual application scene, in addition, the upward inclination angle of the ultrasonic transducer 201 is 35°-40° to realize upward radiation, the auxiliary reflection plate adopts a parabolic metal reflection plate, the material can be selected as aluminum alloy, the thickness is 1-1.5mm, the curvature radius of the reflection plate is adjusted according to the actual situation, generally in 25-35cm, and the ultrasonic transducer 201 can work cooperatively by 4-6, through phase control technology, the ultrasonic signals emitted by the transducers are enhanced in a specific direction, and cancelled in other directions, thereby realizing accurate control of the ultrasonic radiation direction, according to the distance and direction of the target object, automatically adjusting the power, frequency and beam angle of the transducer and other parameters, the dynamic adjustment range can be set according to the actual situation, for example, the target object distance is adjusted within the range of 1.5m-8m, to meet different use needs,
[0031] The inductive device 202 adopts a high-precision piezoelectric ceramic sensor to sense the intrusion of personnel or objects by detecting the intensity, frequency and phase changes of the ultrasonic signal. When the ultrasonic signal changes, the inductive device 202 can quickly capture these changes and transmit the signal to the signal processing circuit for analysis. The inductive device 202 is composed of multiple high-performance piezoelectric ceramic ultrasonic sensors, with a sensitivity of about -68dB, a resolution of 0.4mm, and a response time of less than 0.8ms. According to the length and shape of the column assembly 1 and the crossbar assembly 5, it is reasonable to arrange 2.5-3.5 sensors per meter as needed to ensure maximum coverage of the electronic fence area. The internal signal processing circuit of the inductive device 202 includes amplification, filtering, analog-to-digital conversion and other functional modules, with an amplification factor of 60-80 times, a filtering frequency range of 35kHz-45kHz, and an analog-to-digital conversion accuracy of 14-16 bits. Advanced digital signal processing techniques such as Fast Fourier Transform (FFT) and Wavelet Transform are used to extract feature information from the ultrasonic signal, improving the accuracy and reliability of intrusion detection. In addition, the warning assembly 2 cooperates with a low-power microcontroller with a main frequency of 60-80MHz to coordinate and manage the work of each component, receive the processing results from the signal processing circuit, and make judgments and decisions based on pre-set algorithms and rules. If it is determined that there is a personnel intrusion, the microcontroller will trigger the alarm system and send the alarm information to the monitoring center or other devices through WiFi or contact connection. At the same time, the microcontroller can also adjust and optimize the parameters of the inductive device 202 to adapt to different working environments and safety requirements.
[0032] Compared with radar equipment, the overall device structure has a larger volume and a relatively fixed installation position, which may be limited in the complex terrain and working area of the coal mine. The square tube of the entire device can be customized and installed according to actual needs, with more flexible layout. Different lengths and shapes of square tubes can be selected according to different areas and working requirements of the coal mine to achieve precise protection of specific areas. The new electronic fence can realize the cooperative work of multiple devices through contact connection and Wifi communication to form a larger safety protection area. This flexible layout can better adapt to the dynamic changes of the coal mine, such as the adjustment of the working area and the movement of the equipment. When it is necessary to expand or adjust the safety protection area, electronic fence devices can be easily added or moved without the need for large-scale modification of the entire system. In some special working areas such as narrow tunnels and equipment surroundings, the flexible layout advantage of the new electronic fence is more obvious, which can be customized and installed according to actual conditions to ensure safety protection without dead angles.
[0033] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.
Claims
1. A mine electronic fence for quickly setting up a warning area, comprising a stand column assembly (1) and a warning assembly (2), characterized in that: The front side surface of the column assembly (1) is provided with a warning assembly (2), the bottom end of the column assembly (1) is provided with a base assembly (3), the top end of the column assembly (1) is provided with a connecting seat (4), and the left and right sides of the column assembly (1) are both connected with a horizontal column assembly (5), the warning assembly (2) comprises an ultrasonic transducer (201), an inductive device (202) and an assembling frame (203), the bottom of the ultrasonic transducer (201) is provided with the inductive device (202), and the side of the ultrasonic transducer (201) close to the column assembly (1) is connected with the assembling frame (203).
2. The electronic fence for quickly setting up a warning area in a mine according to claim 1, characterized in that, The column assembly (1) comprises a main column body (101), a butt joint slot (102) and a supporting angle plate (103), the upper and lower ends of the main column body (101) are provided with the butt joint slot (102), and the left and right sides of the main column body (101) are symmetrically provided with the supporting angle plate (103).
3. The electronic fence for quickly setting up a warning area in a mine according to claim 2, characterized in that, The main column body (101) and the connecting seat (4) are connected by inserting structure and fixed by bolts, the upper and lower sides of the connecting seat (4) are provided with slot structures matched with the surface structure of one end of the main column body (101), and one end of the connecting seat (4) is provided with a hole for penetrating the bolt.
4. The electronic fence for quickly setting up a warning area in a mine according to claim 2, characterized in that, The ultrasonic transducer (201) and the inductive device (202) are respectively a spherical transducer and a high-precision piezoelectric ceramic sensor, the ultrasonic transducer (201) and the main column body (101) are connected and fixed by using the assembling frame (203) and the bolt, and the front side vertical surface of the main column body (101) is provided with a hole matched with the bolt structure.
5. The electronic fence for quickly setting up a warning area in a mine according to claim 2, characterized in that, The base assembly (3) comprises a base (301), a fixed pile (302) and a plug (303), the front and rear sides of the base (301) are both connected with the fixed pile (302), and the bottom of the fixed pile (302) is connected with the plug (303) by bolts.
6. The electronic fence for quickly setting up a warning area in a mine according to claim 5, characterized in that, The base (301) and the fixed pile (302) are provided in an integrated structure, the top of the base (301) is provided with a slot structure matched with the surface structure of one end of the main column body (101), the base (301) and the main column body (101) are connected by inserting structure and fixed by bolts, and one end of the base (301) and the fixed pile (302) is provided with a hole for penetrating the bolt.
7. The electronic fence for quickly setting up a warning area in a mine according to claim 2, characterized in that, The horizontal column assembly (5) comprises a reinforcing rib (501), a horizontal rod (502), an electrical contact (503) and a fixed pin (504), the upper and lower ends of the reinforcing rib (501) are both connected with the horizontal rod (502), the side surface of the horizontal rod (502) away from the reinforcing rib (501) is provided with the electrical contact (503), and the left and right ends of the reinforcing rib (501) are both penetrated by the fixed pin (504).
8. The electronic fence for quickly setting up a warning area in a mine according to claim 7, characterized in that, The cross section of the reinforcing rib (501) is arranged in a trapezoidal structure, and the reinforcing rib (501) and the cross bar (502) are connected by welding, and the cross bar (502) and the butt joint notch (102) are connected by inserting structure and fixed by inserting a fixing pin (504), and the cross bar (502) and the supporting angle plate (103) are connected and fixed by bolts.