Disclosure of Invention
The technical task of the invention is to provide an intelligent safety supervision device for a construction site, which can monitor each area of the construction site without dead angles at three hundred and sixty degrees, has a large supervision range and a comprehensive supervision area, monitors environmental parameters comprehensively, has a long service life of a sensor, can effectively reduce the maintenance cost at the later stage, can capture personnel who do not wear safety helmets on the construction site, and blame and warn the personnel who do not wear safety helmets on the construction site, thereby promoting safe construction, being beneficial to reducing the occurrence rate of accidents on the construction site, generating electricity by utilizing solar energy to supply power for the personnel, fully utilizing natural resources, having a high environmental protection value, avoiding inconvenience caused by cable traction on the construction site, having a high practicability and solving the problems.
The technical scheme of the invention is realized as follows:
an intelligent safety supervision device for a construction site comprises:
the bottom supporting mechanism comprises a base and an upright post, the inside of the base is of a hollow structure, a storage battery, a controller and a communication module are fixedly mounted in the base, the storage battery is electrically connected with the controller and the communication module respectively, the communication module is electrically connected with the controller, and the upright post is vertically and fixedly mounted at the central position of the upper part of the base;
the field video monitoring mechanism comprises a lifting frame and a monitoring camera, the lifting frame is fixedly installed at the top of the upright post, the monitoring camera is installed at the top of the lifting frame through an angle adjusting assembly, and the monitoring camera is respectively and electrically connected with the storage battery and the controller through wires;
the environment monitoring mechanism comprises an assembly plate, an air speed sensor, a wind direction sensor, a louver box, a fixing rod, an air temperature sensor, an air humidity sensor, a noise sensor, an air pressure sensor, a PM2.5 sensor and a PM10 sensor, wherein the assembly plate is horizontally arranged, the assembly plate is fixedly arranged at the side part of the upright post through a connecting rod, the air speed sensor, the wind direction sensor and the louver box are fixedly arranged at the upper part of the assembly plate, the fixing rod is fixedly arranged in the louver box through a fixing seat, the air temperature sensor, the air humidity sensor, the noise sensor, the air pressure sensor, the PM2.5 sensor and the PM10 sensor are fixedly arranged on the fixing rod, and the air temperature sensor, the air humidity sensor, the PM2.5 sensor and the PM10 sensor are fixedly arranged on the fixing rod, The signal output ends of the noise sensor, the air pressure sensor, the PM2.5 sensor, the PM10 sensor, the wind speed sensor and the wind direction sensor are electrically connected with the signal input end of the controller through signal lines;
the display mechanism comprises a cross rod and a display screen, the cross rod is horizontally and fixedly arranged on the side part of the upright post, the display screen is fixedly arranged at the end part of one end of the cross rod, which is far away from the upright post, and the electric control end of the display screen is electrically connected with the control output end of the controller through a data line;
generating mechanism, generating mechanism includes the fixed cover of annular, knee, mounting panel and solar cell panel, the fixed cover of annular is in through the fixed suit of locking bolt on the stand, knee fixed mounting is in on the lateral surface of the fixed cover of annular, mounting panel fixed mounting is in the knee is kept away from the one end tip of the fixed cover of annular, solar cell panel fixed mounting be in the mounting panel dorsad on the side of knee, just solar cell panel pass through the wire with battery electric connection.
Preferably, the crane includes shell, sleeve pipe, first motor, square loop bar and lead screw, the bottom periphery an organic whole of shell is equipped with annular connecting seat, annular connecting seat pass through fixing bolt fixed mounting in the top of stand, the sleeve pipe is vertical and install fixedly the upper portion central point of shell puts the department, first motor passes through motor cabinet fixed mounting in the inside of shell, just first motor pass through the wire respectively with the battery with controller electric connection, square loop bar slides vertically and installs the sheathed tube inside, the lead screw is vertically spiro union is in the inside of square loop bar, just the bottom of lead screw stretches into the inside of shell, the bottom of lead screw pass through the shaft coupling with the axis of rotation fixed connection of first motor.
Preferably, the angle adjusting assembly comprises a box body, two rotating shafts, a second motor, a gantry-shaped fixing frame, a cylindrical shell, a circular end cover and a third motor, the box body is fixedly arranged at the top end part of the square loop bar, the two rotating shafts are both rotatably arranged on the two end walls of the box body through sealing bearings, the second motor is fixedly arranged in the box body, the rotating shaft of the second motor is fixedly connected with one end of one of the rotating shafts, the second motor is respectively and electrically connected with the storage battery and the controller through leads, the gantry-shaped fixing frame is fixedly arranged at the end part of the two rotating shafts far away from the box body, the cylindrical shell is fixedly arranged on the top wall of the gantry-shaped fixing frame, and the circular end cover is rotatably and hermetically arranged at the upper end part of the cylindrical shell, the upper part of the circular end cover is fixedly connected with the bottom of the monitoring camera, the third motor is fixedly installed inside the cylindrical shell, the rotating shaft of the third motor is fixedly connected with the center of the bottom of the circular end cover, and the third motor is electrically connected with the storage battery and the controller through wires respectively.
Preferably, the solar cell panel is arranged to incline upwards, and the inclination angle of the solar cell panel is 120-130 degrees.
Preferably, a storage module is fixedly mounted inside the base, the storage module is a storage hard disk, and the storage module is electrically connected with the controller through a data line.
Preferably, the upper portion of the cross rod is further fixedly provided with a loudspeaker through a support rod, and an electric control end of the loudspeaker is electrically connected with a control output end of the controller through a serial port line.
Preferably, the upper portion of the assembling plate is also fixedly provided with an LED status indicator lamp through a vertical rod, and an electric control end of the LED status indicator lamp is electrically connected with a control output end of the controller through a control line.
Preferably, four symmetrically arranged assembling lugs are fixedly arranged on the peripheral edge of the base, and mounting holes are formed in the four assembling lugs.
Preferably, the upper portion of the base is further fixedly provided with a cylindrical bump, the upper portion of the cylindrical bump is further embedded with a charging interface, the outer portion of the cylindrical bump is further in threaded connection with a sealing cover for protecting the charging interface, and the charging interface is electrically connected with the storage battery through a wire.
Preferably, one side face of the base is of an open structure, a side cover plate is fixedly mounted on one side face of the base, which is of the open structure, through screws, mounting lugs are fixedly arranged inside the base, and threaded holes matched with the screws are formed in the mounting lugs.
Compared with the prior art, the invention has the advantages and positive effects that:
1. according to the invention, the arranged site video monitoring mechanism consists of the lifting frame, the angle adjusting component and the monitoring camera, the lifting frame enables the height of the monitoring camera to be adjusted, so that the device can be suitable for construction sites with different scenes, the angle adjusting component is used for adjusting the monitoring visual angle of the monitoring camera, so that the device can monitor regions with different directions on the construction site, and further the device can monitor each region of the construction site without dead angles of three hundred sixty degrees, so that the monitoring range is large, the monitoring regions are comprehensive, and the practicability is good;
2. the invention is characterized in that the arranged environment monitoring mechanism consists of an assembly plate, a wind speed sensor, a wind direction sensor, a louver box, a fixed rod, an air temperature sensor, an air humidity sensor, a noise sensor, an air pressure sensor, a PM2.5 sensor and a PM10 sensor, so that the device can monitor various environment parameters such as wind speed, wind direction, air temperature, air humidity, noise, air pressure, PM2.5 sensor, PM10 and the like on a construction site, thereby the device can monitor the environment parameters more comprehensively and has better practicability, in addition, the air temperature sensor, the air humidity sensor, the noise sensor, the air pressure sensor, the PM2.5 sensor and the PM10 sensor are arranged inside the louver box, the louver box is utilized for protection, the service lives of the air temperature sensor, the air humidity sensor, the noise sensor, the air pressure sensor, the PM2.5 sensor and the PM10 sensor can be effectively prolonged, thereby reducing the later maintenance cost of the device;
3. according to the invention, the monitoring camera, the controller and the display screen are matched, so that when the monitoring camera captures personnel who do not wear safety helmets on a construction site, the controller controls the display screen to play the picture video of the personnel who do not wear safety helmets on the construction site, and accordingly, the personnel who do not wear safety helmets on the construction site are subjected to blame and warning, so that safety construction is promoted, and the occurrence rate of accidents on the construction site is reduced;
4. according to the invention, the arranged power generation mechanism is composed of the annular fixed sleeve, the bent rod, the mounting plate and the solar panel, so that the device can generate power by utilizing solar energy to supply power for the device, further, the device can fully utilize natural resources, the environmental protection value is good, and meanwhile, the inconvenience brought to construction due to the fact that cables are drawn at a construction site can be avoided.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The invention is further described with reference to the following figures and specific examples.
Example 1
As shown in fig. 1, an intelligent safety supervision device for a construction site according to an embodiment of the present invention includes a bottom support mechanism 1, a site video monitoring mechanism 2, an environment monitoring mechanism 3, a display mechanism 4, and a power generation mechanism 5;
as shown in fig. 1 to 4 and 7, the bottom supporting mechanism 1 includes a base 101 and a column 102, the inside of the base 101 is a hollow structure, a storage battery 9, a controller 10 and a communication module 11 are fixedly installed inside the base 101, the storage battery 9 is electrically connected to the controller 10 and the communication module 11 respectively, the communication module 11 is electrically connected to the controller 10, and the column 102 is vertically and fixedly installed at an upper center position of the base 101;
as shown in fig. 1-2, 7, 11 and 12, the on-site video monitoring mechanism 2 includes a crane 201 and a monitoring camera 202, the crane 201 is fixedly installed on the top of the upright post 102, the monitoring camera 202 is installed on the top of the crane 201 through an angle adjusting assembly 203, and the monitoring camera 202 is electrically connected to the storage battery 9 and the controller 10 through wires;
as shown in fig. 1-2, 7, 9 and 10, the environment monitoring mechanism 3 includes a fitting plate 302, an air speed sensor 304, a wind direction sensor 303, a louver 305, a fixing rod 307, an air temperature sensor 308, an air humidity sensor 309, a noise sensor 310, an air pressure sensor 311, a PM2.5 sensor 312 and a PM10 sensor 313, the fitting plate 302 is horizontally disposed, the fitting plate 302 is fixedly installed at a side portion of the pillar 102 through a connecting rod 301, the air speed sensor 304, the wind direction sensor 303 and the louver 305 are fixedly installed at an upper portion of the fitting plate 302, the fixing rod 307 is fixedly installed at an inner portion of the louver 305 through a fixing seat 306, the air temperature sensor 308, the air humidity sensor 309, the noise sensor 310, the air pressure sensor 311, the PM2.5 sensor 312 and the PM10 sensor 313 are fixedly installed on the fixing rod 307, the signal output ends of the air temperature sensor 308, the air humidity sensor 309, the noise sensor 310, the air pressure sensor 311, the PM2.5 sensor 312, the PM10 sensor 313, the wind speed sensor 304 and the wind direction sensor 303 are all electrically connected with the signal input end of the controller 10 through signal lines;
as shown in fig. 1-2 and 7, the display mechanism 4 includes a cross bar 401 and a display screen 402, the cross bar 401 is horizontally and fixedly installed at a side portion of the upright post 102, the display screen 402 is fixedly installed at an end portion of the cross bar 401 far away from the upright post 102, an electric control end of the display screen 402 is electrically connected to a control output end of the controller 10 through a data line, and the display screen 402 is also electrically connected to the storage battery 9 through a wire;
as shown in fig. 1-2 and fig. 7-8, the power generation mechanism 5 includes an annular fixing sleeve 501, a bent rod 502, a mounting plate 503 and a solar panel 504, the annular fixing sleeve 501 is fixedly sleeved on the column 102 through a locking bolt 505, the bent rod 502 is fixedly mounted on the outer side surface of the annular fixing sleeve 501, the mounting plate 503 is fixedly mounted at an end portion of the bent rod 502 far away from the annular fixing sleeve 501, the solar panel 504 is fixedly mounted on a side surface of the mounting plate 503 back to the bent rod 502, the solar panel 504 is electrically connected to the storage battery 9 through a wire, the solar panel 504 is inclined upward, and the inclination angle of the solar panel 504 is 120-130 degrees.
As shown in fig. 2, 7 and 11, the lifting frame 201 includes a housing 2011, a sleeve 2019, a first motor 2014, a square sleeve rod 2018 and a screw rod 2017, an annular connecting seat 2012 is integrally arranged at the periphery of the bottom of the housing 2011, the annular connecting seat 2012 is fixedly installed at the top of the upright post 102 through a fixing bolt 2013, the bushing 2019 is vertically and fixedly installed at an upper center position of the housing 2011, the first motor 2014 is fixedly installed inside the housing 2011 through a motor base 2015, and the first motor 2014 is respectively and electrically connected with the storage battery 9 and the controller 10 through conducting wires, the square sleeve rod 2018 is vertically and slidably arranged inside the sleeve 2019, the screw rod 2017 is vertically screwed inside the square sleeve rod 2018, the bottom end of the screw rod 2017 extends into the housing 2011, and the bottom end of the screw rod 2017 is fixedly connected with the rotating shaft of the first motor 2014 through a coupler 2106;
as shown in fig. 2, 7 and 12, the angle adjusting assembly 203 includes a box 2031, two rotating shafts 2036, a second motor 2037, a gantry-shaped fixing frame 2035, a cylindrical housing 2034, a circular end cover 2033 and a third motor 2032, the box 2031 is fixedly installed at the top end of the square bar 2018, the two rotating shafts 2036 are rotatably installed on the two end walls of the box 2031 through sealed bearings, the second motor 2037 is fixedly installed inside the box 2031, the rotating shaft of the second motor 2037 is fixedly connected with one end of one of the rotating shafts 2036, the second motor 2037 is respectively electrically connected with the battery 9 and the controller 10 through wires, the gantry-shaped fixing frame 2035 is fixedly installed at the end of the two rotating shafts 2036 far from the box 2031, the cylindrical housing 2034 is fixedly installed on the top wall of the gantry-shaped fixing frame 2035, the circular end cap 2033 is rotatably and hermetically mounted at an upper end of the cylindrical housing 2034, an upper portion of the circular end cap 2033 is fixedly connected to a bottom of the monitoring camera 202, the third motor 2032 is fixedly mounted inside the cylindrical housing 2034, a rotation shaft of the third motor 2032 is fixedly connected to a bottom center of the circular end cap 2033, and the third motor 2032 is electrically connected to the battery 9 and the controller 10 through wires.
By adopting the technical scheme, the bottom supporting mechanism 1 is used for installing and fixing the site video monitoring mechanism 2, the environment monitoring mechanism 3, the display mechanism 4 and the power generation mechanism 5, wherein the site video monitoring mechanism 2 is used for carrying out real-time video monitoring on the site condition, the environment monitoring mechanism 3 is used for monitoring the environment parameters of the construction site, the display mechanism 4 is used for playing the picture monitored by the site video monitoring mechanism 2 and displaying the environment parameters of the construction site monitored by the environment monitoring mechanism 3, and the power generation mechanism 5 is used for generating power to supplement electric energy for the device;
the bottom supporting mechanism 1 is composed of a base 101 and a stand column 102, a storage battery 9, a controller 10 and a communication module 11 are arranged inside the base 101, the storage battery 9 is used for storing electric energy generated by the power generation mechanism 5 and supplying power to the on-site video monitoring mechanism 2, the environment monitoring mechanism 3 and the display mechanism 4, the controller 10 is used for receiving data uploaded by the environment monitoring mechanism 3 of the on-site video monitoring mechanism 2, the display mechanism 4 is used for displaying data processed by the controller 10, and the communication module 11 can be a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, a wireless network card or an RJ45 communication interface and is used for connecting the device with the internet and a server, and the device can be used for achieving the purpose of remote supervision;
the on-site video monitoring mechanism 2 comprises a lifting frame 201, an angle adjusting component 203 and a monitoring camera 202, wherein the lifting frame 201 enables the height of the monitoring camera 202 to be adjusted, so that the device can be suitable for construction sites with different scenes, the angle adjusting component 203 is used for adjusting the monitoring visual angle of the monitoring camera 202, so that the device can monitor areas with different directions of the construction site, and in addition, the monitoring camera 202 can be used for capturing personnel who do not wear safety helmets on the construction site;
the environment monitoring means 3 is composed of the mounting plate 302, the wind speed sensor 304, the wind direction sensor 303, the louver 305, the fixing rod 307, the air temperature sensor 308, the air humidity sensor 309, the noise sensor 310, the air pressure sensor 311, the PM2.5 sensor 312 and the PM10 sensor 313, so that the device can monitor various environmental parameters such as wind speed, wind direction, air temperature, air humidity, noise, air pressure, PM2.5 and PM10 at a construction site, thereby the device can monitor environmental parameters more comprehensively and has better practicability, and in addition, the air temperature sensor 308, the air humidity sensor 309, the noise sensor 310, the air pressure sensor 311, the PM2.5 sensor 312 and the PM10 sensor 313 are arranged inside the louver 305, thereby effectively improving the efficiency of the air temperature sensor 308, the air humidity sensor 309, the noise sensor 310, the air pressure sensor 311, The life of the PM2.5 sensor 312 and the PM10 sensor 313, thereby reducing the cost of later maintenance of the device;
the display mechanism 4 is composed of a cross rod 401 and a display screen 402, the display screen 402 is used for playing a video picture of a construction site monitored by the monitoring camera 202 and displaying various environmental parameters of the construction site, such as wind speed, wind direction, air temperature, air humidity, noise, air pressure, PM2.5, PM10 and the like monitored by the environment monitoring mechanism 3, so that a supervisor can know whether the environmental quality of the construction site meets related requirements in real time, and secondly, the controller 10 can control the display screen 402 to display that a person who does not wear safety helmets on the construction site captured by the monitoring camera 202 is responsible and warned for the person who does not wear safety helmets on the construction site, thereby promoting safe construction and being beneficial to reducing the occurrence rate of construction site accidents;
the power generation mechanism 5 is composed of an annular fixed sleeve 501, a bent rod 502, a mounting plate 503 and a solar panel 504, so that the device can generate power by utilizing solar energy to supply power to the device, further the device can fully utilize natural resources, the environmental protection value is good, and inconvenience caused by cable traction on a construction site can be avoided;
the lifting frame 201 comprises a shell 2011, a sleeve 2019, a first motor 2014, a square sleeve rod 2018 and a screw rod 2017, and the sleeve 2019, the first motor 2014, the square sleeve rod 2018 and the screw rod 2017 can be matched with each other to drive the square sleeve rod 2018 to move up and down, so that the purpose of adjusting the height of the monitoring camera 202 is achieved;
the angle adjusting assembly 203 comprises a box body 2031, two rotating shafts 2036, a second motor 2037, a gantry-shaped fixing frame 2035, a cylindrical shell 2034, a circular end cover 2033 and a third motor 2032, the inclination angle of the monitoring camera 202 can be adjusted under the action of the two rotating shafts 2036, the second motor 2037 and the gantry-shaped fixing frame 2035, the monitoring camera 202 can rotate in the horizontal direction under the mutual cooperation of the cylindrical shell 2034, the circular end cover 2033 and the third motor 2032, and therefore the monitoring camera 202 can monitor all areas of a construction site without dead angles at three hundred and sixty degrees, the monitoring range of the device is large, the monitoring areas are comprehensive, and the practicability is good.
Example 2
As shown in fig. 7, the difference between this embodiment and embodiment 1 is that a storage module 12 is further fixedly mounted inside the base 101, the storage module 12 is a storage hard disk, and the storage module 12 is electrically connected to the controller 10 through a data line.
By adopting the technical scheme, the device has the function of storing data due to the arrangement of the storage module 12, is used for storing the environmental quality parameters of the construction site and the video data monitored by the monitoring camera 202, and is convenient for sorting, filing or analyzing the environmental quality parameters of the construction site and the video data monitored by the monitoring camera 202 in the later period.
Example 3
As shown in fig. 2 and 7, the present embodiment is different from embodiment 2 in that a speaker 404 is further fixedly mounted on the upper portion of the cross bar 401 through a support bar 403, and an electric control end of the speaker 404 is electrically connected to the control output end of the controller 10 through a serial line.
By adopting the technical scheme, the loudspeaker 404 is used for carrying out voice broadcast when the construction site caught by the monitoring camera 202 does not have the personnel wearing the safety helmet to warn the personnel not wearing the safety helmet on the construction site, urging the personnel not wearing the safety helmet on the construction site to timely wear the safety helmet, and meanwhile, when the environmental quality of the construction site does not reach the standard, the loudspeaker 404 is used for sending out alarm sound to prompt the supervision personnel to timely take measures to improve the environmental quality of the construction site.
Example 4
As shown in fig. 2 and 7, the present embodiment is different from embodiment 3 in that an LED status indicator 13 is further fixedly mounted on the upper portion of the mounting plate 302 through a vertical rod 14, and an electrical control end of the LED status indicator 13 is electrically connected to a control output end of the controller 10 through a control line.
Through adopting above-mentioned technical scheme, LED status indicator 13 is used for showing the device's operating condition, work normally at the device, surveillance camera head 202 does not catch the personnel that the job site did not wear the safety helmet, and LED status indicator 13 is green when the environmental quality of job site reached, LED status indicator 13 is red when the device can not work normally or surveillance camera head 202 catches the personnel that the job site did not wear the safety helmet or the environmental quality of job site did not reach, the supervisor of being convenient for just can see the device's operating condition in a distance.
Example 5
As shown in fig. 5 and fig. 6, the present embodiment is different from embodiment 4 in that four symmetrically arranged fitting lugs 106 are further fixedly mounted on the peripheral edge of the base 101, and mounting holes are respectively formed in the four fitting lugs 106.
Through adopting above-mentioned technical scheme, make base 101 be convenient for fix through the bolt through setting up to join in marriage dress ear 106 and mounting hole, can prevent that the device from taking place the accident scene of askew when the job site uses to make the device security performance better.
Example 6
As shown in fig. 5 to 7, the difference between this embodiment and embodiment 5 is that a cylindrical bump 6 is further fixedly mounted on the upper portion of the base 101, a charging interface 7 is further embedded on the upper portion of the cylindrical bump 6, a sealing cover 8 for protecting the charging interface 7 is further screwed to the outside of the cylindrical bump 6, and the charging interface 7 is electrically connected to the storage battery 9 through a wire.
Through adopting above-mentioned technical scheme, be convenient for through the interface 7 that charges when overcast and rainy for a long time supplement the electric energy for battery 9 charges, cylindrical lug 6 cooperatees with sealed lid 8, can avoid the interface 7 that charges to advance dirt and wade and damage to guarantee the life of interface 7 that charges.
Example 7
As shown in fig. 5 to 7, the present embodiment is different from embodiment 6 in that one side surface of the base 101 is of an open structure, a side cover plate 103 is fixedly mounted on one side surface of the base 101, which is of an open structure, through a screw 104, a mounting ear 105 is fixedly mounted inside the base 101, and a threaded hole matched with the screw 104 is formed in the mounting ear 105.
Through adopting above-mentioned technical scheme for the side cover plate 103 is convenient for carry out the dismouting through operating screw 104, and the later stage of being convenient for is maintained the inside part of base 101.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the device is installed and fixed on a construction site through matching of bolts, the assembling lugs 106 and the mounting holes, the site video monitoring mechanism 2 is used for carrying out real-time video monitoring on site conditions, the environment monitoring mechanism 3 is used for monitoring environment parameters of the construction site, the display mechanism 4 is used for playing pictures monitored by the site video monitoring mechanism 2 and displaying environment parameters of the construction site monitored by the environment monitoring mechanism 3, the power generation mechanism 5 is used for generating power to supplement electric energy for the device, the loudspeaker 404 is used for carrying out voice broadcasting to warn people who do not wear safety helmets on the construction site when the monitoring camera 202 captures the people who do not wear safety helmets on the construction site, and prompts the people who do not wear safety helmets on the construction site to wear the safety helmets in time, meanwhile, when the environmental quality of the construction site does not reach the standard, the loudspeaker 404 is used for sending an alarm to prompt a supervisor to take measures to improve the environmental quality of the construction site in time; LED status indicator 13 is used for showing the device's operating condition, the device normally works, monitoring camera 202 does not catch the personnel that the job site did not wear the safety helmet, and the environmental quality of job site reaches the standard LED status indicator 13 and is green, LED status indicator 13 is red when the device can not normally work or monitoring camera 202 catches the personnel that the job site did not wear the safety helmet or the environmental quality of job site does not reach the standard LED status indicator 13, the supervisor of being convenient for just can see the device's operating condition in a distance.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.