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CN-121971092-A - Multimode eye moves brain electricity synchronous acquisition and lie detection device

CN121971092ACN 121971092 ACN121971092 ACN 121971092ACN-121971092-A

Abstract

The invention discloses a multimode eye movement and brain electricity synchronous acquisition lie detection device, and belongs to the field of lie detection devices. The multifunctional lie detector comprises a supporting mechanism, wherein a lifting mechanism is arranged above the supporting mechanism, and a lie detecting mechanism is arranged in front of the lifting mechanism; the supporting mechanism comprises a bottom plate, a fluted disc is rotatably arranged at the center of the lower surface of the bottom plate through a rotating shaft, a plurality of gears I are rotatably connected to the lower surface of the bottom plate and positioned on the outer side of the fluted disc through the rotating shaft, a turnover supporting structure matched with the fluted disc, the gears I and supporting seats is adopted, the plurality of supporting seats can be synchronously unfolded to enlarge the supporting area of the bottom during use, the placement stability is guaranteed, the supporting seats can be reversely turned and folded during idle, the defects that the traditional base is large in occupied area and cannot be folded and stored are thoroughly overcome, the occupied space of the device during idle is greatly reduced, the storage, the transportation and the storage of the device are facilitated, and the portability is improved.

Inventors

  • HUANG XINYUE
  • WANG YUCAN
  • CAI MIAO

Assignees

  • 黄欣悦

Dates

Publication Date
20260505
Application Date
20260327

Claims (7)

  1. 1. A multi-mode eye movement electroencephalogram synchronous acquisition lie detection device comprises a support mechanism (1) and is characterized in that a lifting mechanism (2) is arranged above the support mechanism (1), a lie detection mechanism (3) is arranged in front of the lifting mechanism (2), the support mechanism (1) comprises a bottom plate (101), a fluted disc (102) is rotatably arranged at the center of the lower surface of the bottom plate (101) through a rotating shaft, a plurality of gears (103) are rotatably connected to the lower surface of the bottom plate (101) and positioned on the outer side of the fluted disc (102) through the rotating shaft, the outer side wall of the gears (103) is meshed with the outer side wall of the fluted disc (102), a supporting seat (104) is fixedly connected to the bottom end of the central shaft of the gears (103), the lifting mechanism (2) comprises a lifting seat (201), the bottom of the lifting seat (201) is fixedly connected with the top end of the central shaft of the fluted disc (102), a screw one (202) is rotatably connected with the inner upper part of the lifting seat (201) through a rotating shaft, the outer side wall of the bottom plate (101) is rotatably connected with a screw one motor (203), a screw rod (204) is fixedly connected with the top end of the screw rod (204) through a screw rod (203), the rear end of the cross arm (301) is the inner side of the first screw sleeve (203) and is rotationally connected with the first screw sleeve (203) through a rotating shaft, the rear end of the cross arm (301) extends to the inner side of the first screw sleeve (203), two sides of the cross arm (301) are fixedly connected with two gears (302) which are positioned on two sides of the first screw sleeve (203), the two gears (302) are rotationally connected with the first screw sleeve (203) through the rotating shaft, a second screw (303) is rotationally connected in the cross arm (301) through the rotating shaft, a second screw sleeve (304) is installed on the outer side wall of the second screw sleeve (303) through threads, a binocular camera (305) is fixedly installed at the bottom of the second screw sleeve (304), a flexible electrode plate (306) is fixedly installed on the front surface of the binocular camera (305), and a head positioning disc (307) is fixedly connected in front of the lower surface of the cross arm (301).
  2. 2. The multi-mode eye movement electroencephalogram synchronous acquisition lie detection device according to claim 1, wherein a first hydraulic box (105) is fixedly connected to the right of the upper surface of the base plate (101), a first piston plate (106) is slidably connected to the inner side of the first hydraulic box (105), a push receiving rod (107) is fixedly connected to the left side of the first piston plate (106), and the left end of the push receiving rod (107) penetrates to the left side of the first hydraulic box (105) and is fixedly connected with a push receiving plate (108).
  3. 3. The multi-mode eye movement electroencephalogram synchronous acquisition lie detection device according to claim 2, wherein a cam (109) is fixedly connected to the outer side wall of a central shaft of the fluted disc (102) and positioned below the lifting seat (201), and the outer side wall of the cam (109) is attached to the left side of the pushed plate (108).
  4. 4. The multi-modal eye movement and brain electrical synchronization acquisition lie detection device according to claim 1, wherein a universal wheel (110) is fixedly connected to the bottom of the supporting seat (104).
  5. 5. The multi-mode eye-movement electroencephalogram synchronous acquisition lie detection device according to claim 2, wherein a mounting plate (205) is fixedly connected to the lower surface of the first screw sleeve (203), a second hydraulic tank (206) is fixedly connected to the front surface of the mounting plate (205), a second piston plate (207) is slidably connected to the inner side of the second hydraulic tank (206), a vertical rod (208) is fixedly connected to the upper surface of the second piston plate (207), the top end of the vertical rod (208) penetrates through the top of the second hydraulic tank (206) and is fixedly connected with a U-shaped frame (209), two racks (210) are fixedly connected to the front surface of the U-shaped frame (209), the outer side walls of the two second gears (302) are respectively connected with the front surfaces of the two racks (210) in a meshed mode, and a spring (211) is fixedly connected between the second hydraulic tank (206) and the second piston plate (207).
  6. 6. The multi-mode eye movement electroencephalogram synchronous acquisition lie detection device according to claim 5, wherein a ventilation pipe (4) is fixedly communicated between the second hydraulic box (206) and the first hydraulic box (105).
  7. 7. The multi-mode eye movement electroencephalogram synchronous acquisition lie detection device according to claim 1, wherein a knob (308) is fixedly connected to the front end of the second screw rod (303).

Description

Multimode eye moves brain electricity synchronous acquisition and lie detection device Technical Field The invention relates to the field of lie detection devices, in particular to a multimode eye movement and brain electricity synchronous acquisition lie detection device. Background The eye movement tracking and electroencephalogram monitoring integrated lie detecting device is a lie detecting device integrating eye movement tracking and electroencephalogram monitoring technologies, eye movement physiological characteristics such as pupil change, blink frequency, line of sight track and the like of a detected person are captured in real time through a special camera, meanwhile, brain electric activity signals are collected through electrode plates attached to regions such as forehead and temple of the head, synchronous analysis is carried out on the two types of signals through an algorithm, abnormal differences of the signals when the detected person answers key questions and neutral questions are compared, and therefore whether lie-seeking behaviors exist or not is judged; In order to ensure that the existing acquisition device is placed stably when in use, the base is large in occupied area generally and cannot be folded, the height of the device cannot be adjusted as required when in use, the adaptability is poor, the whole device is inconvenient to store with folding, the occupied space is large when not in use, and improvement is needed, so that the multi-mode eye movement electroencephalogram synchronous acquisition lie detection device is provided. Disclosure of Invention The invention aims to overcome the defects that the existing integrated lie detection acquisition device has large occupied area, can not be folded and stored and is not adjustable in height, and provides a multi-mode eye movement and brain electricity synchronous acquisition lie detection device which can be folded and stored and has small occupied area; the invention also aims to realize the high flexibility and adjustability of the lie detection acquisition device, improve the suitability of the device to testees with different use scenes and different heights, optimize the overall structural stability of the device, and solve the problem of overlarge occupation of space in idle time. The technical scheme is that the multimode eye movement electroencephalogram synchronous acquisition lie detection device comprises a supporting mechanism, wherein a lifting mechanism is arranged above the supporting mechanism; A lie detection mechanism is arranged in front of the lifting mechanism; the supporting mechanism comprises a bottom plate, a fluted disc is rotatably arranged at the center of the lower surface of the bottom plate through a rotating shaft, a plurality of first gears are rotatably connected to the outer side of the fluted disc through the rotating shaft, the outer side walls of the first gears are in meshed connection with the outer side walls of the fluted disc, and a supporting seat is fixedly connected to the bottom end of a central shaft of the first gears; The lifting mechanism comprises a lifting seat, the bottom of the lifting seat is fixedly connected with the top end of a central shaft of the fluted disc, a first screw rod is rotatably connected above the inside of the lifting seat through a rotating shaft, the outer side wall of the first screw rod is rotatably connected with a first screw rod sleeve through the rotating shaft, the top of the lifting seat is fixedly connected with a motor, and the bottom end of an output shaft of the motor is fixedly connected with the top end of the first screw rod; The lie detection mechanism comprises a cross arm, wherein the rear end of the cross arm is arranged on the inner side of the first screw rod sleeve and is rotationally connected with the first screw rod sleeve through a rotating shaft, the rear end of the cross arm extends to the inner side of the first screw rod sleeve, gears II are fixedly connected to the two sides of the cross arm and are located on the two sides of the first screw rod sleeve, and the gears II are rotationally connected with the first screw rod sleeve through the rotating shaft; The inside of the cross arm is rotationally connected with a second screw rod through a rotating shaft, the outer side wall of the second screw rod is provided with a second screw rod sleeve through threads, the bottom of the second screw rod sleeve is fixedly provided with a binocular camera, and the front surface of the binocular camera is fixedly provided with a flexible electrode plate; The front part of the lower surface of the cross arm is fixedly connected with a head positioning disk. Furthermore, the right part of the upper surface of the bottom plate is fixedly connected with a first hydraulic box, the inner side of the first hydraulic box is slidably connected with a first piston plate, the left side of the first piston plate is fixedly connected with a push re