CN214140319U - Mining belt foreign matter detection protection device based on video identification - Google Patents
Mining belt foreign matter detection protection device based on video identification Download PDFInfo
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- CN214140319U CN214140319U CN202023185006.0U CN202023185006U CN214140319U CN 214140319 U CN214140319 U CN 214140319U CN 202023185006 U CN202023185006 U CN 202023185006U CN 214140319 U CN214140319 U CN 214140319U
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Abstract
The utility model discloses a mining belt foreign matter detection protection device based on video identification, including embedded microprocessor, CCD image acquisition subassembly, video processing interface, first photoelectric isolation circuit, deshake circuit, second photoelectric isolation circuit and alarm, CCD image acquisition subassembly is connected with embedded microprocessor's an IO input port through the video processing interface, and first photoelectric isolation circuit receives belt feeder start-stop signal and is connected with embedded microprocessor's another IO input port through going to shake the circuit, and embedded microprocessor's an IO output port and second photoelectric isolation circuit are connected, and second photoelectric isolation circuit output switching value gives the alarm; the utility model has the advantages that: the phenomena of false alarm and false alarm in the process of detecting the foreign matters in the mining belt are avoided.
Description
Technical Field
The utility model relates to a mining supervisory equipment field, more specifically relate to a mining belt foreign matter detects protection device based on video identification.
Background
The coal mine industry is the supporting industry of national economy in China and occupies an important proportion in national energy structure and primary energy consumption. The vast majority of coal mines in China have the characteristics of complex geological conditions, high mining difficulty, multiple disaster types, wide distribution range, numerous hidden dangers such as unsafe behaviors of people, unsafe states of environment and objects and the like, so that coal mine safety production accidents happen occasionally, and human casualties are caused. At present, the total quantity of coal mine safety production accidents in China is reduced year by year, the overall situation of safety production is generally stable and improved, but the safety production accidents still occur at times, particularly accidents caused by various hidden dangers.
In order to find out the three violations and hidden dangers in time and avoid accidents, video monitoring systems are built in key areas above and below the coal mine well, and full coverage of key areas above and below the coal mine well is achieved. Due to the fact that underground points are multiple and wide in links, people are tired of vision, and cannot keep alertness for a long time, a dispatcher cannot be in face, cannot see multiple or one monitoring point in real time for 24 hours, and cannot timely acquire the three violations, the environmental abnormity and the equipment abnormity state. Therefore, a pair of intelligent 'eyes' is needed to replace human eyes, problems are found in time, an alarm is given immediately, photos are taken and time-delay video recording is carried out, field personnel and supervision personnel are reminded, a linkage control instruction can be sent out, field equipment is controlled to stop, and major accidents are avoided.
Mining belt feeder is at the operation in-process, if there is the foreign matter on the belt to influence the belt operation, so need design a belt feeder foreign matter detection device, prior art belt foreign matter detection device generally detects the foreign matter through photoelectric sensor, photoelectric sensor detection range is limited, need set up a plurality of photoelectric sensor simultaneously in order to realize the full range cover, lead to equipment cost to rise, still can lead to the foreign matter hourglass of this photoelectric sensor detection area to examine when certain photoelectric sensor damages, influence the belt feeder operation.
The video image AI intelligent recognition technology is used for analyzing the content in a video picture through digital image processing and analysis, and can automatically analyze and extract key information in the video picture. The video image recognition technology is used for carrying out high-speed analysis on mass data in a video image by means of a powerful data processing function of a computer, filtering information which is not concerned by a user, and only providing useful key information for a monitor. Video image recognition is based on digital, networked video surveillance, which is a higher-end video surveillance application. The video image recognition camera can recognize different objects, discover abnormal conditions in a monitoring picture, send out an alarm and provide useful information in a fastest and optimal mode, so that safety personnel can be effectively assisted to deal with crisis, and the phenomena of false alarm and false alarm are reduced to the maximum extent, so that a mining belt foreign matter detection protection device is necessary to be designed based on an image recognition technology to reduce the phenomena of false alarm and false alarm.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that there is the problem of misreport and missed report phenomenon in the mining belt foreign matter detection protection device of prior art.
The utility model discloses a following technical means realizes solving above-mentioned technical problem: the utility model provides a mining belt foreign matter detection protection device based on video identification, includes embedded microprocessor, CCD image acquisition subassembly, video processing interface, first photoelectric isolation circuit, dejittering circuit, second photoelectric isolation circuit and alarm, the CCD image acquisition subassembly is connected through video processing interface and embedded microprocessor's an IO input port, and first photoelectric isolation circuit receives the start-stop signal of belt feeder and is connected through going jittering circuit and embedded microprocessor's still another IO input port, and embedded microprocessor's an IO output port and second photoelectric isolation circuit are connected, and second photoelectric isolation circuit output switching value gives the alarm.
The utility model discloses an IO input port of embedded microprocessor receives the image signal that CCD image acquisition subassembly gathered, and still another IO input port of embedded microprocessor receives opening of belt feeder after the processing filtering interference such as optoelectronic isolation and going the shake and stops the signal, through second optoelectronic isolation circuit output alarm signal under the condition of belt feeder operation and received foreign matter image, even detect the foreign matter when the belt feeder does not operate and also not report to the police, avoid the mistake to report to the police and the phenomenon of reporting to the wrong.
Further, the first and second photoelectric isolation circuits have the same structure, the first photoelectric isolation circuit includes a resistor R1, a resistor R2, a light emitting diode D1, a photosensitive semiconductor transistor Q1 and a switch SW, one end of the resistor R1 is connected to the power VEE, the other end of the resistor R1 is connected to the anode of the light emitting diode D1, the cathode of the light emitting diode D1 is grounded through the switch SW, one end of the resistor R2 is connected to the power VCC, the other end of the resistor R2 is connected to the collector of the photosensitive semiconductor transistor Q1, and the emitter of the photosensitive semiconductor transistor Q1 is grounded.
Further, the first photoelectric isolation circuit and the second photoelectric isolation circuit both adopt optocoupler isolation chips with the model number of TLP 521-4.
Furthermore, the debouncing circuit comprises a resistor R3, a resistor R4, a resistor R5, a capacitor C1 and a NOR gate NOR, wherein one end of the resistor R3 and one end of the resistor R4 are both connected with the other end of the resistor R2, the other end of the resistor R4 is respectively connected with one end of the resistor R5 and one end of the capacitor C1, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected with one input end of the NOR gate NOR, the other end of the resistor R5 is connected with the other input end of the NOR gate NOR, and the output end of the NOR gate NOR is connected with the IO input port of the embedded microprocessor.
Further, the mining belt foreign matter detection protection device based on video identification further comprises an upper computer, and the embedded microprocessor is in communication connection with the upper computer through an industrial Ethernet controller.
Further, the industrial ethernet controller is model RTL8019 AS.
Furthermore, the mining belt foreign matter detection protection device based on video identification further comprises a memory, and the memory is respectively connected with the embedded microprocessor and the industrial Ethernet controller.
Further, the model of the embedded microprocessor is STM32F 769.
Furthermore, the video processing interface is a camera interface carried by the embedded microprocessor.
Furthermore, the model of the CCD image acquisition assembly is CMOS ICR.
The utility model has the advantages that: the utility model discloses an IO input port of embedded microprocessor receives the image signal that CCD image acquisition subassembly gathered, and still another IO input port of embedded microprocessor receives opening of belt feeder after the processing filtering interference such as optoelectronic isolation and going the shake and stops the signal, through second optoelectronic isolation circuit output alarm signal under the condition of belt feeder operation and received foreign matter image, even detect the foreign matter when the belt feeder does not operate and also not report to the police, avoid the mistake to report to the police and the phenomenon of reporting to the wrong.
Drawings
Fig. 1 is a block diagram of a mining belt foreign matter detection protection device based on video identification, which is disclosed by an embodiment of the present invention;
fig. 2 is a schematic diagram of a first photoelectric isolation circuit in the mining belt foreign matter detection protection device based on video identification disclosed in the embodiment of the present invention;
fig. 3 is a schematic circuit diagram illustrating a first photoelectric isolation circuit and a second photoelectric isolation circuit of the mining belt foreign object detection protection device based on video recognition when the optical coupling isolation chip of TLP521-4 is adopted in the embodiment of the present invention;
fig. 4 is a schematic diagram of a debouncing circuit in the mining belt foreign object detection protection device based on video identification disclosed in the embodiment of the present invention;
fig. 5 is the embodiment of the utility model discloses a mining belt foreign matter detection protection device middle host computer and memory and embedded microprocessor's connection schematic diagram based on video identification.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a mining belt foreign matter detection protection device based on video identification comprises an embedded microprocessor 1, a CCD image acquisition component 2, a video processing interface 3, a first photoelectric isolation circuit 4, a debounce circuit 5, a second photoelectric isolation circuit 6 and an alarm 7, wherein the CCD image acquisition component 2 is connected with an IO input port of the embedded microprocessor 1 through the video processing interface 3, the first photoelectric isolation circuit 4 receives start-stop signals of a belt conveyor (the signals are switching value input signals, namely DI0 and DI1 of 1, in practical application, one switching signal or multiple switching signals can be selected and selected according to field requirements) and is connected with another IO input port of the embedded microprocessor 1 through the debounce circuit 5, one IO output port of the embedded microprocessor 1 is connected with the second photoelectric isolation circuit 6, the second photoelectric isolation circuit 6 outputs switching values to the alarm 7, and the output switching values are DO0 and DO1 in fig. 1. In this embodiment, the CCD image collecting assembly 2 adopts the prior art and is of the CMOS ICR type. The video processing interface 3 is a camera interface of the embedded microprocessor 1. The embedded microprocessor 1 in fig. 1 is also connected to an industrial ethernet network via a network interface to facilitate communication.
As shown in fig. 2, the first and second photo- isolation circuits 4 and 6 have the same structure, the first photo-isolation circuit 4 includes a resistor R1, a resistor R2, a light emitting diode D1, a photo-sensitive transistor Q1 and a switch SW, one end of the resistor R1 is connected to the power VEE, the other end of the resistor R1 is connected to the anode of the light emitting diode D1, the cathode of the light emitting diode D1 is grounded through the switch SW, one end of the resistor R2 is connected to the power VCC, the other end of the resistor R2 is connected to the collector of the photo-sensitive transistor Q1, and the emitter of the photo-sensitive transistor Q1 is grounded. In practical applications, the opto-isolator circuit may directly employ an opto-coupler chip, an internal principle of the opto-coupler chip is the same as that of the opto-isolator circuit described above and shown in fig. 2, the first opto-isolator circuit 4 and the second opto-isolator circuit 6 may both employ an opto-coupler isolator chip of a model TLP521-4, and a circuit schematic diagram when the opto-coupler isolator chip of the TLP521-4 is employed is shown in fig. 3.
As shown in fig. 4, the debounce circuit 5 includes a resistor R3, a resistor R4, a resistor R5, a capacitor C1, and a NOR gate NOR, wherein one end of the resistor R3 and one end of the resistor R4 are both connected to the other end of the resistor R2, the other end of the resistor R4 is connected to one end of the resistor R5 and one end of the capacitor C1, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected to one input terminal of the NOR gate NOR, the other end of the resistor R5 is connected to the other input terminal of the NOR gate NOR, and an output terminal of the NOR gate NOR is connected to the IO input port of the embedded microprocessor 1.
As shown in fig. 5, the mining belt foreign matter detection and protection device based on video identification further includes an upper computer, and the embedded microprocessor 1 is in communication connection with the upper computer (not shown) through an industrial ethernet controller 8. The industrial Ethernet controller 8 is of a type RTL8019AS, and the RTL8019AS is connected with an upper computer through an RJ45 interface after voltage conversion. The embedded microprocessor 1 in fig. 5 is also connected to a PC through a programming interface, which facilitates the loading of programs. The embedded microprocessor 1 is also connected with MAX232/485 to expand the communication mode.
With reference to fig. 5, the mining belt foreign matter detection and protection device based on video identification further includes a memory, the model of the embedded microprocessor 1 is STM32F769, and the memory is connected to the embedded microprocessor 1 and the industrial ethernet controller 8, respectively. The memory comprises an SRAM and a FLASH, and the specific connection relationship between the SRAM and the FLASH and the embedded microprocessor 1 is shown in fig. 5, which is not described herein again.
It should be noted that, this application only protects the hardware circuit architecture, and does not protect the control logic inside embedded microprocessor 1 and the image recognition algorithm of CCD image acquisition component 2, and this application can adopt any algorithm that can carry out image recognition to the belt feeder foreign matter, and transmit the recognition result to embedded microprocessor 1 through the form of switching value, also the port that embedded microprocessor 1 and CCD image acquisition component 2 correspond when discerning the foreign matter is put 1, the port that embedded microprocessor 1 and CCD image acquisition component 2 correspond when not discerning the foreign matter is put 0.
Through the technical scheme, in practical application, when the video identification device identifies that foreign matters exist on the belt conveyor, the belt conveyor foreign matter detection device will give an alarm, but if the belt conveyor is stopped, the foreign matters exist on the belt conveyor, the video identification device can always acquire images of the foreign matters under the condition that the belt conveyor is stopped, the belt conveyor foreign matter detection device will always give an alarm, but the foreign matters under the condition that the belt conveyor is stopped have no influence on the operation of the belt and do not need to give an alarm, so that one IO input port of the embedded microprocessor 1 of the utility model receives image signals acquired by the CCD image acquisition component 2, the other IO input port of the embedded microprocessor 1 receives start-stop signals after the belt conveyor is subjected to photoelectric isolation, debouncing and other treatments to filter interference, and only outputs alarm signals through the second photoelectric isolation circuit 6 under the condition that the belt conveyor runs and receives images of the foreign matters, even if the foreign matter is detected when the belt conveyor does not run, the alarm is not given, and the phenomena of false alarm and missed alarm are avoided.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a mining belt foreign matter detection protection device based on video identification, its characterized in that, includes embedded microprocessor, CCD image acquisition subassembly, video processing interface, first photoelectric isolation circuit, dejittering circuit, second photoelectric isolation circuit and alarm, CCD image acquisition subassembly is through video processing interface and embedded microprocessor's an IO input port connection, and first photoelectric isolation circuit receives the belt feeder and stops the signal and through going to tremble still another IO input port connection of circuit and embedded microprocessor, and an IO output port and the second photoelectric isolation circuit of embedded microprocessor are connected, and second photoelectric isolation circuit output switching value gives the alarm.
2. The mining belt foreign matter detection and protection device based on video identification is characterized in that the first photoelectric isolation circuit and the second photoelectric isolation circuit are identical in structure, the first photoelectric isolation circuit comprises a resistor R1, a resistor R2, a light emitting diode D1, a photosensitive semiconductor tube Q1 and a switch SW, one end of the resistor R1 is connected with a power supply VEE, the other end of the resistor R1 is connected with an anode of the light emitting diode D1, a cathode of the light emitting diode D1 is grounded through the switch SW, one end of the resistor R2 is connected with a power supply VCC, the other end of the resistor R2 is connected with a collector of the photosensitive semiconductor tube Q1, and an emitter of the photosensitive semiconductor tube Q1 is grounded.
3. The mining belt foreign matter detection and protection device based on video identification as claimed in claim 1, wherein the first and second photoelectric isolation circuits are both opto-coupled isolation chips of type TLP 521-4.
4. The mining belt foreign matter detection protection device based on video identification is characterized in that the debouncing circuit comprises a resistor R3, a resistor R4, a resistor R5, a capacitor C1 and a NOR gate NOR, one end of the resistor R3 and one end of the resistor R4 are connected with the other end of the resistor R2, the other end of the resistor R4 is connected with one end of the resistor R5 and one end of the capacitor C1 respectively, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected with one input end of the NOR gate NOR, the other end of the resistor R5 is connected with the other input end of the NOR gate, and the output end of the NOR gate NOR is connected with the IO input port of the embedded microprocessor.
5. The mining belt foreign matter detection and protection device based on video identification as claimed in claim 1, further comprising an upper computer, wherein the embedded microprocessor is in communication connection with the upper computer through an industrial Ethernet controller.
6. The mining belt foreign object detection protection device based on video identification as claimed in claim 5, characterized in that the industrial Ethernet controller is RTL8019AS model.
7. The mining belt foreign object detection protection device based on video identification as claimed in claim 5, characterized by further comprising a memory, wherein the memory is respectively connected with the embedded microprocessor and the industrial Ethernet controller.
8. The mining belt foreign matter detection and protection device based on video identification is characterized in that the embedded microprocessor is STM32F769 in model number.
9. The mining belt foreign matter detection and protection device based on video identification as claimed in claim 8, characterized in that the video processing interface is a camera interface of an embedded microprocessor.
10. The mining belt foreign matter detection and protection device based on video identification is characterized in that the model of the CCD image acquisition assembly is CMOS ICR.
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| CN202023185006.0U CN214140319U (en) | 2020-12-25 | 2020-12-25 | Mining belt foreign matter detection protection device based on video identification |
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| CN202023185006.0U CN214140319U (en) | 2020-12-25 | 2020-12-25 | Mining belt foreign matter detection protection device based on video identification |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114040170A (en) * | 2021-11-18 | 2022-02-11 | 北京华能新锐控制技术有限公司 | Alarm method, alarm device, electronic equipment and storage medium |
| CN115180364A (en) * | 2022-08-01 | 2022-10-14 | 宁夏广天夏科技股份有限公司 | GMI magnetic sensor-based mining conveying belt foreign matter monitoring device and method |
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2020
- 2020-12-25 CN CN202023185006.0U patent/CN214140319U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114040170A (en) * | 2021-11-18 | 2022-02-11 | 北京华能新锐控制技术有限公司 | Alarm method, alarm device, electronic equipment and storage medium |
| CN115180364A (en) * | 2022-08-01 | 2022-10-14 | 宁夏广天夏科技股份有限公司 | GMI magnetic sensor-based mining conveying belt foreign matter monitoring device and method |
| CN115180364B (en) * | 2022-08-01 | 2024-02-27 | 宁夏广天夏科技股份有限公司 | Mining conveyor belt foreign matter monitoring device and method based on GMI magnetic sensor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211222 Address after: 232001 Anhui province tianjia'an District mountain in Huainan City Patentee after: HUAINAN MINING INDUSTRY (GROUP) Co.,Ltd. Address before: 232001 Anhui province tianjia'an District mountain in Huainan City Patentee before: HUAINAN MINING INDUSTRY (GROUP) Co.,Ltd. Patentee before: Anhui Zhongcheng Technology Co., Ltd |
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| TR01 | Transfer of patent right |