CN111498635A - Long-range autonomic rescue system of stranded people of home use elevator - Google Patents
Long-range autonomic rescue system of stranded people of home use elevator Download PDFInfo
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- CN111498635A CN111498635A CN202010301501.9A CN202010301501A CN111498635A CN 111498635 A CN111498635 A CN 111498635A CN 202010301501 A CN202010301501 A CN 202010301501A CN 111498635 A CN111498635 A CN 111498635A
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- 238000001514 detection method Methods 0.000 claims abstract description 75
- 230000009429 distress Effects 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 34
- 230000009467 reduction Effects 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000007689 inspection Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
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- 230000008569 process Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
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- 230000002159 abnormal effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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Abstract
The invention discloses a long-distance autonomous rescue system for people trapping of a household elevator, which relates to the technical field of elevators, and adopts the technical scheme that the system comprises an elevator and an elevator protection circuit, wherein the protection circuit comprises a safety detection module, a brake control module and an elevator control end; the elevator control end comprises a detection module and an elevator execution module; the detection module detects a fault signal of the elevator protection circuit in real time, the detection module detects the fault signal of the elevator protection circuit, sends an execution signal to the elevator execution module and sends a fault signal to the brake control module at the same time, and the brake control module brakes the elevator; and the execution module sends a distress signal to the elevator protection circuit after receiving the execution signal sent by the detection module. The intelligent control system mainly realizes trapping caused by the fault of the safety circuit system in the use process of the household elevator, realizes self-rescue through the intelligent control system, and has the effects of high safety coefficient, strong operation reliability and short rescue time.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a long-distance autonomous rescue system for trapping people in a household elevator.
Background
The elevator is in trouble, and it is exactly that the safety protection system of elevator is in effect, (compare with driving and meet the red light, want the brake) but have more than ninety percent to be because elevator lock return circuit, the safety circuit malfunction leads to (some switches on the electric circuit, sensor, contact, the contact that takes place to age bad contact, installation and debugging are incorrect, daily maintenance is out of order etc.), and the safety circuit makes the elevator in service stop operation.
The elevator is not suitable for remote rescue and escaping in the field of commercial elevators (because people are complex to use, mobile, difficult to manage and difficult to train), and also does not need remote rescue and escaping (because the commercial elevators have more people to use and are strict to manage, and the state enforces that each elevator needs to be attended by a special person, and once the elevator is trapped in a people accident, the elevator needs to arrive at the site within 30 minutes for rescue and people release).
However, the situations in the field of home elevators are completely opposite, firstly, the home elevator is single in use crowd (one family), and secondly, the home elevator does not come into the supervision range of special equipment, so that the regular maintenance, the regular annual inspection and the regulation requirement of special person watching are not required forcibly, the safe use is maintained completely by the consciousness of owners and the consciousness of manufacturers, and thus the potential safety hazard of stranded people is left.
In the field of commercial elevators, if an elevator is trapped, no great safety hazard exists, because people can know the failure condition of the elevator immediately (because the elevator stops and affects other people to use the elevator upstairs and downstairs).
And home elevator (mainly villa) is in case the elevator is stranded trouble, because it is the exclusive courtyard, and the outsider is difficult to know, and the property is the inside of the home elevator of the unwarranted control again, and home elevator and property management center do not have the communication line yet (the elevator official meeting requires elevator car to install a fixed telephone under normal conditions).
In the prior art, a chinese utility model patent with an authorization and announcement number of CN209383205U discloses a control device for a home elevator and a home elevator. The control device of the home elevator comprises an Internet of things interface module; the elevator control module is connected with the Internet of things interface module; the car control module is connected with the elevator control module; and a car operating panel connected with the car control module. The control device of the home elevator and the home elevator can enable relevant personnel such as family members, elevator maintenance personnel and the like to remotely master the running condition of the elevator in real time, and inform the relevant personnel of the emergency condition or the fault at the first time when the emergency condition or the fault occurs.
The Chinese utility model patent with the publication number of CN203715015U discloses a household elevator emergency rescue device, which comprises an elevator control cabinet, a car operating device and a traction machine, wherein the elevator control cabinet is connected with the car operating device and the traction machine; the emergency rescue device for the household elevator further comprises an emergency rescue device, and the power supply input end of the emergency rescue device is electrically connected with alternating current; the output end of the emergency rescue device is connected with the elevator control cabinet; the emergency rescue device is also connected with the traction machine. The household elevator emergency rescue device can rescue when the elevator control driver or the electric control component fails.
When the elevator is in a trapped fault, the current position of the elevator car is detected and judged, and when the current position of the elevator is positioned on a flat floor, an operation system of the elevator is fed back to drive a car door and a landing door of the car to be opened so as to prevent people from being trapped; when the elevator is in a non-flat floor, safety is considered, and at the moment, a car door of the car and a landing door of a floor are in a closed state, so that people are trapped.
Although the rescue system is arranged in the existing elevator, workers or related personnel can be reminded at the first time when the elevator breaks down, the workers for elevator maintenance cannot enter the owner at the first time (the workers cannot arrive at the owner at the first time and cannot directly enter the owner after arriving), and therefore the waiting rescue time of trapped personnel is prolonged. If an extreme situation occurs, if a owner is at home and does not carry a mobile phone when taking an elevator, the fixed phone in the elevator car breaks down, the person is very dangerous when being in the elevator, and the person cannot be effectively rescued in a short time, and only can wait for the family to go home and report for repair and help, and if the family is just far away from the place for business trip, more serious consequences can be generated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a long-distance autonomous rescue system for trapping people in a home elevator, which mainly realizes trapping people caused by the fault of a safety circuit system in the use process of the home elevator, realizes self-rescue through an intelligent control system, and has the effects of high safety coefficient, strong operation reliability and short rescue time.
In order to achieve the purpose, the invention provides the following technical scheme: a household elevator man trapping remote autonomous rescue system comprises an elevator and an elevator protection circuit, wherein the elevator comprises a car, a car door and a landing door, the protection circuit comprises a safety detection module, a brake control module and an elevator control end; the elevator control end comprises a detection module and an elevator execution module; the detection module detects a fault signal of the elevator protection circuit in real time, when the elevator is in a man-trapping fault, the detection module detects the fault signal of the elevator protection circuit, sends an execution signal to the elevator execution module and sends a fault signal to the brake control module at the same time, and the brake control module brakes the elevator; the execution module sends a distress signal to the elevator protection circuit after receiving the execution signal sent by the detection module, the elevator protection circuit receives the distress signal, the control module is shielded, and the elevator continues to move to the flat floor.
By adopting the technical scheme, after the elevator protection circuit breaks down, the brake control module of the elevator protection circuit can be triggered to brake the running elevator, so that accidents are prevented; the detection module detects the trouble of elevator protection circuit after, can send a signal to elevator execution module, and execution module sends distress signal to elevator protection circuit after receiving the execution signal that detection module sent, and elevator protection circuit is after receiving distress signal, shielding control module, and the elevator continues the motion after cancelling brake control, and after moving to the target floor, the lift-cabin door is opened, and stranded personnel get rid of poverty, make things convenient for stranded personnel to get rid of poverty.
The invention is further configured to: the elevator control end also comprises a speed reduction operation module; when the elevator execution module receives the execution signal sent by the detection module, the elevator execution module sends a speed reduction operation signal to the speed reduction operation module to drive the elevator to operate at a reduced speed.
By adopting the technical scheme, the elevator execution module sends the speed reduction operation signal to the speed reduction operation module, so that the elevator can be operated at a reduced speed when the elevator is lifted very much, and the safety of the elevator in escaping from trouble and running is improved.
The invention is further configured to: the safety detection module is divided into a gate circuit detection module and a safety switch detection module; the detection module comprises a gate circuit detection unit, a safety switch detection unit and a temporary storage unit; the gate circuit detection unit sends a first execution signal to the elevator execution module and sends a memory signal to the temporary storage unit after receiving a gate fault signal sent by the gate circuit detection module; the safety switch detection unit sends a second execution signal to the elevator execution module after receiving the safety switch fault sent by the safety switch detection module; the temporary storage unit temporarily stores the signals after receiving the memory signals sent by the gate circuit detection unit and sends floor signals to the elevator execution module.
By adopting the technical scheme, when the door detection module breaks down, the door detection unit receives a door fault signal and sends a first execution signal to the elevator execution module and sends a memory signal to the temporary storage unit at the same time, after the braking module is shielded, the elevator continues to move to a target floor, and if the floor data stored by the temporary storage module is the same as the target data of the target floor, the elevator continues to move to the previous floor of the target floor; when the safety switch circuit breaks down, the safety circuit detection unit sends a second execution signal to the elevator execution module after receiving the safety switch fault signal, after the brake module is shielded, the elevator continues to move to a target floor, the safety detection modules with different functions break down, the elevator runs in different modes, and trapped people can conveniently get rid of the trouble.
The invention is further configured to: the elevator execution module comprises a help-seeking unit; after receiving the execution signal sent by the detection module, the help-seeking unit sends a speed-reducing operation signal to the speed-reducing operation module to drive the elevator to run at a reduced speed, and simultaneously sends a shielding signal to the brake control module to release the brake of the elevator.
By adopting the technical scheme, after the help-seeking unit receives the execution signal, the help-seeking unit turns out the shielding signal, shields the brake control module and releases the brake on the elevator; and meanwhile, a signal is sent to the deceleration running module to drive the elevator to run at a reduced speed, so that the running safety is improved.
The invention is further configured to: the system also comprises a background monitoring end, wherein the background monitoring end comprises a signal receiving module; the signal receiving module can receive the monitoring signal sent by the detection module in real time.
By adopting the technical scheme, the background monitoring end can obtain the feedback of the running condition of the elevator in real time, and can assist trapped people to get rid of the elevator when the elevator runs fault.
The invention is further configured to: the elevator execution module comprises a voice communication unit, and the background monitoring end further comprises a voice communication module; the voice communication unit is activated after receiving the execution signal, and sends a voice communication signal to the voice communication module after being activated; the voice communication module receives a voice communication signal sent by the voice communication unit and an elevator running signal sent by the signal receiving module, and then sends a voice rescue signal to the voice communication unit.
By adopting the technical scheme, the voice communication unit and the voice communication unit can be activated when the elevator is trapped by people, so that the trapped people can be conveniently contacted with background people, the self-rescue efficiency of the trapped people is improved, and the trapped time is reduced.
The invention is further configured to: the elevator execution module also comprises a rescue playing unit; a carrier for helping the playing unit to play the signal is also arranged in the elevator; and after receiving the execution signal, the rescue playing unit reads and plays a rescue signal prestored in the carrier.
Through adopting above-mentioned technical scheme, when the elevator takes place stranded trouble, can trigger the carrier broadcast signal of saving oneself in the elevator, slow down stranded personnel's nervous mood, improve the efficiency of saving oneself to reduce stranded time.
The invention is further configured to: the carrier is a touch screen, and the rescue signal is a video signal.
Through adopting above-mentioned technical scheme, the touch-sensitive screen not only can regard as the carrier of the switch of saving oneself, also can play video signal simultaneously, possess better human-computer interaction, the stranded personnel of being convenient for your getting rid of poverty.
In conclusion, the beneficial technical effects of the invention are as follows:
after the elevator protection circuit breaks down, a brake control module of the elevator protection circuit is triggered to brake the running elevator, so that accidents are prevented; the detection module sends a signal to the elevator execution module after detecting the fault of the elevator protection circuit, the execution module sends a distress signal to the elevator protection circuit after receiving the execution signal sent by the detection module, the elevator protection circuit shields the control module after receiving the distress signal, the elevator continues to move after canceling the braking control, and after moving to a target floor, the elevator door is opened, trapped people get rid of the trouble, and the trapped people can conveniently get rid of the trouble;
the elevator execution module sends a speed reduction operation signal to the speed reduction operation module, so that the elevator can be operated at a reduced speed when the elevator is lifted very much, and the safety of the elevator in escaping from the trouble is improved;
the background monitoring end can obtain the feedback of the running condition of the elevator in real time and can assist trapped people to get rid of the elevator when the elevator runs in a fault.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
fig. 2 is a schematic diagram showing the connection between an elevator control terminal and an elevator protection circuit.
In the figure: 1. an elevator; 11. a car; 12. a compartment door; 13. a landing door; 14. a touch screen; 15. a call device; 2. an elevator protection circuit; 21. a gate circuit detection module; 22. a safety switch detection module; 23. a brake control module; 3. an elevator control end; 31. a detection module; 32. an elevator execution module; 33. a reduced speed operation module; 4. a background monitoring end; 41. a signal receiving module; 42. and a voice communication module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a long-distance autonomous rescue system for people trapped in a home elevator is disclosed, and the system is shown in figures 1 and 2 and comprises an elevator 1, an elevator protection circuit 2, an elevator control end 3 and a background monitoring end 4. The elevator 1 comprises a car 11, a car door 12, a landing door 13, a touch screen 14 and a communication device which are arranged inside the car 11, and other lifting devices necessary for driving the elevator 1 to lift.
The elevator protection circuit 2 comprises a gate detection module 21, a safety switch detection module 22 and a brake control module 23. When the gate circuit detection module 21 or the safety switch detection module 22 has a fault, the brake control module is triggered to brake the operation of the elevator 1, so that the operation safety of the elevator is improved. When the elevator protection circuit 2 has a fault due to a problem of the elevator protection circuit (switches, sensors and contacts on an electrical circuit are aged and have poor contact, and the installation and debugging are incorrect), the brake control module 23 is also triggered to brake the operation of the elevator 1. When the current position of the elevator is positioned on a flat floor, the running system of the elevator is fed back to drive the compartment door and the landing door of the car to be opened, so that people are prevented from being trapped; when the elevator is in a non-flat floor, safety is considered, and at the moment, a car door of the car and a landing door of a floor are in a closed state, so that people are trapped.
The elevator control terminal 3 comprises a detection module 31, an elevator execution module 32 and a deceleration running module 33. The detection module 31 includes a gate detection unit 311, a safety switch detection unit 312, and a temporary storage unit 313. The elevator execution module 32 includes a distress unit 321, a voice communication unit 322, and a rescue playing unit 323.
The background monitoring terminal 4 includes a signal receiving module 41 and a voice communication module 42.
After receiving the door fault signal sent by the door circuit detection module 21, the door circuit detection unit 311 sends a first execution signal to the elevator execution module 32 and sends a memory signal to the temporary storage unit 313.
The safety switch detection unit 312 receives the safety switch failure sent by the safety switch detection module 22, and sends a second execution signal to the elevator execution module 22.
The temporary storage unit 313 receives the memory signal sent by the gate detection unit 311, temporarily stores the signal, and sends a floor signal to the help-seeking unit 321.
After receiving the first execution signal or the second execution signal sent by the detection module 31, the distress unit 321 sends a deceleration running signal to the deceleration running module 33 to drive the elevator 1 to run at a reduced speed, and sends a shielding signal to the brake control module 23 to brake the running of the elevator 1 by contact.
The voice communication unit 322 is activated after receiving the first execution signal or the second execution signal sent by the detection module 31, and sends a voice communication signal to the voice communication module 42 after the activation.
The rescue playing unit 323 loads and carries a rescue signal in the carrier after receiving the first execution signal or the second execution signal sent by the detection module 31, so as to relieve the pressure of the trapped people. The carrier may be a touch screen 14 or a speaker, and the corresponding rescue signals correspond to video signals and audio signals.
After the deceleration running module 33 receives the deceleration running signal and the brake control module 23 is shielded, the elevator 1 enters a deceleration running mode, so that the running stability of the elevator 1 in an abnormal condition is improved.
The signal receiving module 41 can receive the monitoring signal sent by the detecting module 31 in real time, so that background workers can know the running condition of each elevator 1 in real time, and when the elevator is trapped, trapped people can be better helped to get rid of the elevator.
The voice communication module 42 receives the voice communication signal sent by the voice communication unit 322 and the elevator running signal sent by the signal receiving module 41, and then sends a voice rescue signal to the voice communication unit 322.
When the gate circuit detection module 21 of the elevator has a fault due to the self-reason, the gate circuit detection unit 311 detects a gate circuit fault signal sent by the gate circuit detection module 21; after receiving the gate fault signal, the gate detection unit 311 sends a first execution signal to the elevator execution module 32, and sends a memory signal to the temporary storage unit 313. After the elevator execution module 32 receives the first execution signal, the voice communication unit 322 is activated to communicate with the background staff, the carrier touch screen 14 of the rescue playing unit plays a self-rescue visual screen, trapped people are pacified and the rescue method is informed, the SOS switch on the touch screen 14 is unlocked by the help seeking unit 321 after the first execution signal is received, and the trapped people press the SOS switch to realize self-rescue. After the Sos switch is pressed down, the help-seeking unit 321 sends a shielding signal to the brake control module 23 to shield the brake control module 23; and simultaneously sends a speed reduction running signal to the speed reduction running module 33, so that the elevator enters a speed reduction running mode. The elevator runs in a inching mode, after the elevator runs to a target floor, the compartment door and the landing door are opened, and trapped people get rid of the elevator. In the process of movement, a floor signal sent by the temporary storage unit 313 is sent to the help-seeking unit and compared with a target floor of the elevator, and if the landing door 13 of the target floor breaks down, the elevator runs to the upper floor or the lower floor of the target floor.
When the safety switch detection module 23 of the elevator fails due to its own cause, the operation mode of the elevator is substantially the same as the operation mode when the door circuit detection module 21 fails due to its own cause. The difference is that the register unit 313 receives the second execution signal without response. The elevator finally travels to the destination floor.
The automatic rescue system mainly realizes safe and reliable automatic rescue in a short time after a household elevator is trapped and breaks down, and improves the reliability and safety of the operation of the automatic rescue by taking a remote technology as an auxiliary. When in rescue, after the self-help function is started, the elevator is controlled to run to the nearby target floor in a low-speed mode in a mode of continuously pressing the button, once the trapped people release the button to stop running, the button is pressed to continue running, so that the safety of the elevator is improved,
the embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a long-range autonomic rescue system of stranded people of home use elevator, includes elevator (1) and elevator protection circuit (2), elevator (1) includes car (11), railway carriage or compartment door (12) and layer door (13), protection circuit (2) include safety inspection module and braking control module (23), its characterized in that: the elevator control system also comprises an elevator control end (3); the elevator control end (3) comprises a detection module (31) and an elevator execution module (32);
the detection module (31) detects a fault signal of the elevator protection circuit (2) in real time, when the elevator is trapped, the detection module (31) detects the fault signal of the elevator protection circuit (2), sends an execution signal to the elevator execution module (32) and sends a fault signal to the brake control module (23), and the brake control module (23) brakes the elevator (1);
after receiving the execution signal sent by the detection module (31), the execution module (32) sends a distress signal to the elevator protection circuit (2), after receiving the distress signal, the elevator protection circuit (2) shields the control module (23), and the elevator (1) continues to move to the flat floor.
2. The home elevator stranded remote autonomous rescue system according to claim 1, characterized in that: the elevator control end (3) also comprises a speed reduction running module (33); when the elevator execution module (32) receives the execution signal sent by the detection module (31), the elevator execution module sends a speed reduction operation signal to the speed reduction operation module (33) to drive the elevator (1) to operate at a reduced speed.
3. The home elevator stranded remote autonomous rescue system according to claim 1, characterized in that: the safety detection module is divided into a gate circuit detection module (21) and a safety switch detection module (22); the detection module (31) comprises a gate circuit detection unit (311), a safety switch detection unit (312) and a temporary storage unit (313);
after receiving the door fault signal sent by the door circuit detection module (21), the door circuit detection unit (311) sends a first execution signal to the elevator execution module (32) and sends a memory signal to the temporary storage unit (313);
the safety switch detection unit (22) sends a second execution signal to the elevator execution module (32) after receiving a safety switch fault signal sent by the safety switch detection module (22);
the temporary storage unit (313) temporarily stores the signal after receiving the memory signal sent by the gate circuit detection unit (311) and sends a floor signal to the elevator execution module (32).
4. The home elevator stranded remote autonomous rescue system according to claim 2, characterized in that: the elevator execution module (32) comprises a help-seeking unit (321); after receiving the execution signal sent by the detection module (31), the help seeking unit (321) sends a speed reduction operation signal to the speed reduction operation module (33) to drive the elevator (1) to operate at a reduced speed, and simultaneously sends a shielding signal to the brake control module (23) to release the brake of the elevator (1).
5. The home elevator stranded remote autonomous rescue system according to claim 1, characterized in that: the device also comprises a background monitoring end (4), wherein the background monitoring end (4) comprises a signal receiving module (41); the signal receiving module (41) can receive the monitoring signal sent by the detection module (31) in real time.
6. The home elevator stranded remote autonomous rescue system according to claim 5, characterized in that: the elevator execution module (32) comprises a voice communication unit (322), and the background monitoring end (4) further comprises a voice communication module (42);
the voice communication unit (322) is activated after receiving the execution signal, and the voice communication unit (322) sends a voice communication signal to the voice communication module (42) after being activated;
the voice communication module (42) receives the voice communication signal sent by the voice communication unit (322) and the elevator running signal sent by the signal receiving module (41), and then sends a voice rescue signal to the voice communication unit (322).
7. The home elevator stranded remote autonomous rescue system according to claim 4, characterized in that: the elevator execution module (32) further comprises a rescue playing unit (323); a carrier for playing the rescue playing unit (323) signal is also arranged in the elevator (1); and the rescue playing unit (323) reads the rescue signal prestored in the carrier and plays the rescue signal after receiving the execution signal.
8. The home elevator stranded remote autonomous rescue system according to claim 7, characterized in that: the carrier is a touch screen (14), and the rescue signal is a video signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010301501.9A CN111498635A (en) | 2020-04-16 | 2020-04-16 | Long-range autonomic rescue system of stranded people of home use elevator |
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| CN202010301501.9A CN111498635A (en) | 2020-04-16 | 2020-04-16 | Long-range autonomic rescue system of stranded people of home use elevator |
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| CN112723051A (en) * | 2020-12-23 | 2021-04-30 | 日立楼宇技术（广州）有限公司 | Household elevator remote rescue system, control method, device and storage medium |
| CN114132811A (en) * | 2021-11-30 | 2022-03-04 | 广州绰立科技有限公司 | Method and device for detecting trapping of elevator, equipment and storage medium |
| CN115072516A (en) * | 2022-06-30 | 2022-09-20 | 柯凡尼电梯(上海)有限公司 | Method and device for self-rescue of platform type household elevator when people are trapped |
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| CN112723051A (en) * | 2020-12-23 | 2021-04-30 | 日立楼宇技术（广州）有限公司 | Household elevator remote rescue system, control method, device and storage medium |
| CN114132811A (en) * | 2021-11-30 | 2022-03-04 | 广州绰立科技有限公司 | Method and device for detecting trapping of elevator, equipment and storage medium |
| CN115072516A (en) * | 2022-06-30 | 2022-09-20 | 柯凡尼电梯(上海)有限公司 | Method and device for self-rescue of platform type household elevator when people are trapped |
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