CN114314239A - Elevator trapping automatic alarm system based on Internet of things - Google Patents

Abstract

The invention relates to the technical field of elevator fault alarming, in particular to an automatic alarming system for elevator people trapping based on the Internet of things. The elevator trapping automatic alarm system based on the Internet of things comprises a shell, wherein a monitoring component for monitoring the safety of an elevator is installed in an installation cavity arranged in the shell, and a thermal imager for detecting human thermal imaging in an elevator cage and a temperature sensor for detecting the temperature in the elevator cage are embedded in the shell; and the protective component is positioned on the inner top wall of the elevator and is used for carrying out fire extinguishing treatment on the elevator cage. According to the elevator people trapping automatic alarm system based on the Internet of things, the monitoring component is matched with the thermal imager, so that after the electric potential difference value and the thermal imager transmit electric signals to the controller at the same time, the controller transmits alarm signals to the elevator monitoring room, the elevator monitoring room can rapidly rescue trapped people, and the falling rate of an elevator can be provided for subsequent safety investigation by utilizing the recorded electric potential difference value.

Description

Elevator trapping automatic alarm system based on Internet of things

Technical Field

The invention relates to the technical field of elevator fault alarming, in particular to an automatic alarming system for elevator people trapping based on the Internet of things.

Background

Elevator faults are mostly faults of the electrical control system. At present, most of electrical control systems of elevators adopt a PLC (programmable logic controller) and a microcomputer control frequency converter. In the elevator electrical control system adopting the alternating current voltage and speed regulation and the alternating current VVVF controlled by the PLC and the microcomputer, the components such as the PLC, the speed regulator, the frequency converter and the like basically have no faults, and the faults are mostly generated in peripheral circuits of the components.

The main points to be detected for the elevator faults are important safety signals, such as emergency stop signals formed by an elevator safety gear switch, an emergency stop switch at the car interior and the car roof, a terminal limit switch and a Buwei speed governor switch, a door assistant negative switch, a power-on speed-responsibility switch, a limit switch and the like. In addition, the fault of the relay and bug killer is also detected. The main loop fault detection is that the elevator control system generally uses a frequency converter, so that the fault detection device can automatically detect faults such as over-current, over-voltage and under-voltage in the main loop, and inputs the fault signals into the PLC as input signals.

The conventional alarm device can only open the alarm device after site personnel find a dangerous case, give an alarm to prompt people to evacuate, and then transmit information to a dangerous case processing department to process the dangerous case. Therefore, it is necessary to provide a new elevator sleepiness automatic alarm system based on the internet of things to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problem, the invention provides an automatic alarming system for elevator people trapping based on the Internet of things.

The invention provides an automatic alarming system for elevator trapping based on the Internet of things, which comprises:

the elevator safety monitoring device comprises a shell, a monitoring component for monitoring the safety of an elevator is installed in an installation cavity arranged in the shell, whether passengers are available or not is effectively detected when the elevator ascends and descends through the monitoring component, and a thermal imager for detecting human thermal imaging in an elevator cage and a temperature sensor for detecting the temperature in the elevator cage are embedded in the shell;

and the protective component is positioned on the inner top wall of the elevator and is used for carrying out fire extinguishing treatment on the elevator cage.

Preferably, the monitoring part includes mounting bracket, plate electrode, sheetmetal, coupling assembling and controller, mounting bracket fixed mounting is in the installation cavity that the casing was seted up, just the equal fixed mounting in both sides of mounting bracket has the plate electrode, two install the sheetmetal that the activity set up between the plate electrode, the sheetmetal passes through coupling assembling movable mounting between two plate electrodes, installation cavity fixed mounting has the controller, just the controller passes through wire and sheetmetal and two plate electrode electric connection.

Preferably, just coupling assembling includes slide bar, slip cap and spring, slide bar fixed mounting in the installation cavity and with mounting bracket parallel arrangement, just the cover is equipped with sliding connection's slip cap on the slide bar, the link of slip cap pass the sliding tray that the mounting bracket was seted up and with sheetmetal fixed connection, just all the cover is equipped with the spring on the slide bar of slip cap both sides, the one end of spring and the inner wall fixed connection of installation cavity, just the other end and the slip cap fixed connection of spring.

Preferably, the monitoring part still includes balanced subassembly, balanced subassembly includes infrared emitter and infrared receiver, the fixed gomphosis of infrared emitter is at the free end of sheetmetal, infrared receiver fixed mounting is on the casing of controller, infrared emitter and infrared receiver set up relatively and all pass through wire and controller electric connection.

Preferably, the protection component comprises a U-shaped mounting plate, the U-shaped mounting plate is fixedly embedded on the inner top wall of the elevator cage, two side plates of the U-shaped mounting plate are bent inwards to form an embedded structure, a water bag is fixedly embedded in each embedded structure, water liquid is stored in each water bag, two groups of puncture plates which are respectively used for puncturing the water bags on two sides are mounted on the U-shaped mounting plate between the two water bags, and puncturing rods are fixedly embedded on one sides, close to the water bags, of the two puncture plates.

Preferably, the subassembly is erect in the subassembly that erects on the U-shaped mounting panel to the puncture board, erect the subassembly and include vertical pole and slide bar, vertical pole fixed mounting is on the interior roof of U-shaped mounting panel, just the bottom fixed mounting of vertical pole has the slide bar that the level set up, it is provided with three groups to erect the subassembly, the puncture board cover establish in three groups erect the slide bar in the subassembly on and with slide bar sliding connection.

Preferably, the sliding rods in the erection components on the two sides are both connected with spring pieces in series, and the sliding rods in the erection components in the middle are provided with trigger components for limiting the puncture plate.

Preferably, the trigger subassembly includes fusing pole, the lantern ring and power, the fixed gomphosis of fusing pole is on the interior roof of U-shaped mounting panel, just the one end fixed mounting of fusing pole has the lantern ring, the lantern ring cover is established and is offset with the puncture board in the slide bar on the subassembly is erect at the middle part, the fusing pole is provided with heating resistor with the hookup location of U-shaped mounting panel, just heating resistor passes through wire and power electric connection.

Preferably, the fixing plates are fixedly mounted on two sides of the shell.

Compared with the prior art, the elevator trapping automatic alarm system based on the Internet of things has the following beneficial effects:

1. according to the invention, because the potential difference is generated between the two electrode plates when the elevator normally operates, a uniform electric field exists, the metal sheet positioned between the two electrode plates can effectively monitor the floating potential difference, the potential difference value can be transmitted into the controller, when the elevator breaks down and violently shakes or the speed is too high, the metal sheet slides up and down along the sliding rod along with the sliding sleeve and compresses or stretches the spring on the sliding rod, the potential difference value exceeds the safety threshold value arranged in the controller, and simultaneously the potential difference value and the thermal imager transmit electric signals to the controller simultaneously when the elevator is monitored by matching with the thermal imager, the controller transmits an alarm signal into the elevator monitoring chamber, so that the controller can rapidly rescue trapped people, and the recorded potential difference value can provide the falling speed of the elevator for subsequent safety investigation;

2. when open fire is induced in the elevator, if the temperature sensor detects that the temperature exceeds the safe temperature, the controller drives the power supply to be turned on through the WIFI signal and enables the heating resistor to heat the root of the fusing rod to fuse the fusing rod, so that the puncture plate slides along the sliding rod and punctures the water bag under the elastic action of the spring piece, water in the water bag is spread out to extinguish the fire, and the safety in the elevator is improved.

Drawings

Fig. 1 is a schematic structural diagram of an elevator sleepiness automatic alarm system based on the internet of things, provided by the invention;

FIG. 2 is a schematic structural view of the monitoring unit shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a shielding member according to the present invention;

FIG. 4 is a second schematic structural view of a shielding member provided in the present invention;

fig. 5 is an enlarged schematic view of a portion a shown in fig. 4.

Reference numbers in the figures: 1. a housing; 2. a mounting cavity; 3. a monitoring component; 31. a mounting frame; 32. an electrode plate; 33. a metal sheet; 34. a connecting assembly; 341. a slide bar; 342. a sliding sleeve; 343. a spring; 35. a controller; 36. a balancing component; 361. an infrared emitter; 362. an infrared receiver; 4. a thermoforming instrument; 5. a temperature sensor; 6. a shielding component; 61. a U-shaped mounting plate; 62. a water-bag; 63. erecting the assembly; 631. a vertical rod; 632. a slide bar; 64. a puncture plate; 65. piercing the stem; 66. a spring plate; 67. a trigger component; 671. a fuse rod; 672. a collar; 673. a power source; 7. and (7) fixing the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to fig. 1 to 5, an elevator trapping automatic alarm system based on the internet of things according to an embodiment of the present invention includes: ahousing 1, amonitoring component 3 and ashielding component 6.

In the embodiment of the present invention, please refer to fig. 1 and 2, fixingplates 7 are fixedly installed on both sides of thehousing 1, amonitoring component 3 for monitoring the safety of the elevator is installed in aninstallation cavity 2 arranged in thehousing 1, whether passengers are present during the ascending and descending of the elevator is effectively detected by themonitoring component 3, and athermal imaging instrument 4 for detecting human body thermal imaging in the elevator cage and atemperature sensor 5 for detecting the temperature in the elevator cage are embedded on thehousing 1;

and themonitoring part 3 includes the mountingbracket 31, mountingbracket 31 fixed mounting is in theinstallation cavity 2 thatcasing 1 seted up, just the equal fixed mounting in both sides of mountingbracket 31 haselectrode plate 32, two install thesheetmetal 33 that the activity set up between theelectrode plate 32, fixed mounting hascontroller 35 in theinstallation cavity 2, justcontroller 35 passes through wire andsheetmetal 33 and twoelectrode plate 32 electric connection,sheetmetal 33 passes through coupling assembling 34 movable mounting between twoelectrode plates 32, just coupling assembling 34 includesslide bar 341,slip cap 342 andspring 343,slide bar 341 fixed mounting is ininstallation cavity 2 and with mountingbracket 31 parallel arrangement, and the cover is equipped with sliding connection'sslip cap 342 onslide bar 341, the link ofslip cap 342 passes the sliding tray that mountingbracket 31 seted up and withsheetmetal 33 fixed connection, and the slidingrods 341 on both sides of the slidingsleeve 342 are sleeved withsprings 343, one end of eachspring 343 is fixedly connected with the inner wall of theinstallation cavity 2, and the other end of eachspring 343 is fixedly connected with the slidingsleeve 342.

It should be noted that: because a potential difference is generated between the twoelectrode plates 32 when the elevator is in normal operation, a uniform electric field exists, while themetal sheet 33 between the twoelectrode plates 32 can effectively monitor the floating potential difference, the potential difference value can be transmitted to thecontroller 35, when the elevator operation is out of order and violent jitter occurs or the speed is too high, causing themetal sheet 33 to slide up and down along the slidingrod 341 along with the slidingsleeve 342 and to compress or stretch thespring 343 on the slidingrod 341, the potential difference exceeds a safety threshold set in thecontroller 35, therefore, when thethermal imager 4 is matched to monitor that a person is in the elevator, after the potential difference value and thethermal imager 4 simultaneously transmit electric signals to thecontroller 35, thecontroller 35 transmits an alarm signal to the elevator monitoring room to quickly rescue the trapped people, and the recorded potential difference value can be used for providing the falling speed of the elevator for subsequent safety investigation.

In an embodiment of the present invention, referring to fig. 1 and 2, themonitoring component 3 further includes abalancing component 36, thebalancing component 36 includes aninfrared transmitter 361 and aninfrared receiver 362, theinfrared transmitter 361 is fixedly embedded in the free end of the metal sheet 33 (i.e., the end away from the sliding sleeve 342), theinfrared receiver 362 is fixedly mounted on the housing of thecontroller 35, specifically, as shown in fig. 2, theinfrared receiver 362 is mounted on the housing of thecontroller 35 opposite to the mountingframe 31, so that themetal sheet 33 is arranged opposite to theinfrared transmitter 361 and theinfrared receiver 362 under normal conditions (i.e., in a condition that the position of themetal sheet 33 is not deviated due to rapid descending or ascending of the elevator), and meanwhile, both theinfrared transmitter 361 and theinfrared receiver 362 are electrically connected to thecontroller 35 through wires.

It should be noted that: when the elevator is going down or up rapidly, their transmitter 361 and their receiver 362 are deviated from each other, so that their receiver 362 cannot receive the signal of their transmitter 361, and thus can be informed and maintained immediately in the monitoring room.

In the embodiment of the present invention, referring to fig. 3, 4 and 5, the protective member 6 is located on the inner top wall of the elevator, the fire extinguishing treatment is performed on the elevator car through the protective member 6, the protective member 6 includes a U-shaped mounting plate 61, the U-shaped mounting plate 61 is fixedly embedded on the inner top wall of the elevator car, two side plates of the U-shaped mounting plate 61 are bent inwards to form an embedded structure, a water bag 62 is fixedly embedded in each embedded structure, water is stored in the water bag 62, two groups of piercing plates 64 for piercing the water bags 62 on two sides are installed on the U-shaped mounting plate 61 between the two water bags 62, and piercing rods 65 are fixedly embedded on the opposite sides of the two piercing plates 64, the piercing rods 65 can be needle-shaped structures, and the piercing plates 64 are erected in an erection assembly 63 on the U-shaped mounting plate 61, erect subassembly 63 and include vertical pole 631 and slide bar 632, vertical pole 631 fixed mounting is on the interior roof of U-shaped mounting panel 61, just the bottom fixed mounting of vertical pole 631 has the slide bar 632 that the level set up, erect subassembly 63 and be provided with three groups, puncture board 64 cover establish on three groups erect the slide bar 632 in the subassembly 63 and with slide bar 632 sliding connection.

Both sides all have concatenatedspring leaf 66 on theslide bar 632 in thesubassembly 63, the middle part install thesubassembly 67 that triggers that is used for restrictingpuncture plate 64 on theslide bar 632 in thesubassembly 63,trigger subassembly 67 includesfusing pole 671,lantern ring 672 andpower 673, the fixed gomphosis offusing pole 671 is on the interior roof ofU-shaped mounting panel 61, just the bottom fixed mounting offusing pole 671 has thelantern ring 672, thelantern ring 672 cover is established and is offset in theslide bar 632 on thesubassembly 63 is erect at the middle part and withpuncture plate 64, the hookup location of fusingpole 671 and U-shaped mountingpanel 61 is provided with heating resistor, just heating resistor passes through wire andpower 673 electric connection. Of course, in one embodiment, the end of thefuse rod 671 remote from thecollar 672 may be fixedly connected to theU-shaped mounting plate 61 via a fuse resistor, which is not specifically described herein and is referred to in the art.

In addition, in a specific implementation process, the heating resistor may be a resistance wire, and the resistance wire is spirally wound on the fusingrod 671, so that the fusing of the fusingrod 671 is accelerated by increasing a heating area of the fusingrod 671, the puncturingplate 64 is made to break away from the limit of thecollar 672, and then reverse impact is realized under the reverse acting force of thespring piece 66 on the slidingrod 632, so that the puncturingrod 65 on the puncturingplate 64 punctures thewater sac bag 62.

It should be noted that: taking an example of artificially inducing an open fire in the elevator as an example, if thetemperature sensor 5 detects that the temperature thereof exceeds the safe temperature, thecontroller 35 drives thepower supply 673 to be turned on through the WIFI signal and enables the heating resistor to heat the root of the fusingrod 671 to fuse the fusingrod 671, so that the puncturingplate 64 slides outwards along the slidingrod 632 and punctures thewater bag 62 under the elastic force of thespring piece 66, the water in thewater bag 62 is spread out to extinguish the fire, and the safety in the elevator is improved.

The working principle of the elevator trapping automatic alarm system based on the Internet of things is as follows:

since a potential difference is generated between the twoelectrode plates 32 during normal operation of the elevator, a uniform electric field exists, themetal sheet 33 located between the twoelectrode plates 32 can effectively monitor a floating potential difference, the potential difference can be transmitted to thecontroller 35, when the elevator is out of operation and is severely shaken or the speed is too high, themetal sheet 33 slides up and down along the slidingrod 341 along with the slidingsleeve 342 and compresses or stretches thespring 343 on the slidingrod 341, the potential difference exceeds a safety threshold value set in thecontroller 35, and the specific threshold value can be set according to actual conditions, which is not described in detail herein. When thethermal imaging instrument 4 is matched to monitor that a person is in the elevator, the electric potential difference value and thethermal imaging instrument 4 simultaneously transmit electric signals to thecontroller 35, and then thecontroller 35 transmits alarm signals to the elevator monitoring room, so that the person trapped in the elevator can be rapidly rescued, and the falling rate of the elevator can be provided for subsequent safety investigation by utilizing the recorded electric potential difference value.

In addition, in the specific implementation process, after thetemperature sensor 5 detects that the temperature exceeds the safe temperature, thecontroller 35 drives thepower supply 673 to be turned on through the WIFI signal and enables the heating resistor to heat the root of the fusingrod 671 to fuse the fusingrod 671, so that thepuncture plate 64 slides outwards along the slidingrod 632 and punctures thewater bag 62 under the elastic force of thespring piece 66, water in thewater bag 62 is spread out to extinguish the fire, and the safety in the elevator is improved.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The utility model provides a stranded autoalarm system of elevator based on thing networking which characterized in that includes: the elevator safety monitoring device comprises a shell (1), wherein a monitoring part (3) for monitoring the safety of an elevator is installed in an installation cavity (2) arranged in the shell (1), whether passengers exist in the elevator during ascending and descending of the elevator is effectively detected through the monitoring part (3), and a thermal imaging instrument (4) for detecting human body thermal imaging in the elevator cage and a temperature sensor (5) for detecting the temperature in the elevator cage are embedded in the shell (1);

the protective component (6) is positioned on the inner top wall of the elevator, and the interior of the elevator cage is subjected to fire extinguishing treatment through the protective component (6); wherein, monitoring part (3) include mounting bracket (31), plate electrode (32), sheetmetal (33), coupling assembling (34) and controller (35), wherein, mounting bracket (31) fixed mounting is in installation cavity (2) that casing (1) was seted up, just the equal fixed mounting in both sides of mounting bracket (31) has plate electrode (32), two install sheetmetal (33) that the activity set up between plate electrode (32), sheetmetal (33) pass through coupling assembling (34) movable mounting is between two plate electrodes (32), fixed mounting has controller (35) in installation cavity (2), just controller (35) are through wire and sheetmetal (33) and two plate electrodes (32) electric connection.

2. The elevator sleepiness automatic alarm system based on the internet of things is characterized in that the connecting assembly (34) comprises a sliding rod (341), a sliding sleeve (342) and a spring (343), the sliding rod (341) is fixedly installed in the installation cavity (2) and is arranged in parallel with the installation rack (31), the sliding rod (341) is sleeved with the sliding sleeve (342) in a sliding connection mode, the connecting end of the sliding sleeve (342) penetrates through a sliding groove formed in the installation rack (31) and is fixedly connected with the metal sheet (33), the sliding rods (341) on two sides of the sliding sleeve (342) are sleeved with the spring (343), one end of the spring (343) is fixedly connected with the inner wall of the installation cavity (2), and the other end of the spring (343) is fixedly connected with the sliding sleeve (342).

3. The elevator trapping automatic alarm system based on the internet of things of claim 2, wherein the monitoring component (3) further comprises a balancing component (36), the balancing component (36) comprises an infrared transmitter (361) and an infrared receiver (362), the infrared transmitter (361) is fixedly embedded at the free end of the metal sheet (33), the infrared receiver (362) is fixedly installed on a shell of the controller (35), and the infrared transmitter (361) and the infrared receiver (362) are oppositely arranged and are electrically connected with the controller (35) through conducting wires.

4. The elevator sleepiness automatic alarm system based on the internet of things of claim 1, wherein the protective component (6) comprises a U-shaped mounting plate (61), the U-shaped mounting plate (61) is fixedly embedded on the inner top wall of an elevator cage, two side plates of the U-shaped mounting plate (61) are bent inwards to form an embedded structure, a water bag (62) is fixedly embedded in each embedded structure, water is stored in the water bag (62), two groups of puncture plates (64) used for puncturing the water bags (62) on two sides are mounted on the U-shaped mounting plate (61) between the two water bags (62), and a puncture rod (65) is fixedly embedded on one side, close to the water bag (62), of the two puncture plates (64).

5. The elevator sleepiness automatic alarm system based on the internet of things of claim 4, wherein the puncture plate (64) is erected in an erection component (63) on the U-shaped mounting plate (61), the erection component (63) comprises a vertical rod (631) and a sliding rod (632), the vertical rod (631) is fixedly mounted on an inner top wall of the U-shaped mounting plate (61), the bottom of the vertical rod (631) is fixedly mounted with the horizontally arranged sliding rod (632), the erection component (63) is provided with three groups, and the puncture plate (64) is sleeved on the sliding rod (632) in the three groups of erection components (63) and is in sliding connection with the sliding rod (632).

6. The elevator sleepiness automatic alarm system based on the Internet of things of claim 5, wherein the sliding rods (632) in the erection components (63) on two sides are connected with spring pieces (66) in series, and the sliding rods (632) in the erection components (63) in the middle are provided with trigger components (67) for limiting puncture plates (64).

7. The elevator sleepiness automatic alarm system based on the Internet of things of claim 6, wherein the trigger assembly (67) comprises a fusing rod (671), a sleeve ring (672) and a power supply (673), the fusing rod (671) is fixedly embedded on the inner top wall of the U-shaped mounting plate (61), the sleeve ring (672) is fixedly mounted at one end of the fusing rod (671), the sleeve ring (672) is sleeved in a sliding rod (632) on the middle erection assembly (63) and abuts against the puncture plate (64), a heating resistor is arranged at the connecting position of the fusing rod (671) and the U-shaped mounting plate (61), and the heating resistor is electrically connected with the power supply (673) through a conducting wire.

8. The elevator trapping automatic alarm system based on the internet of things as claimed in claim 1, wherein fixing plates (7) are fixedly mounted on both sides of the housing (1).

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