Polymerization of ethylene with a metallocene catalyst in the presence of a cocatalyst

Abstract

The utility model relates to a head posture sensing device for polygraph, including the polygraph seat, the backrest rear end of polygraph seat is equipped with the base, the base is equipped with electric sliding platform in verticality, the sliding platform of electric sliding platform is equipped with the support, the support is equipped with infrared sensor A and infrared sensor B in horizontal interval, the support is equipped with infrared sensor C and infrared sensor D in vertical interval, the support upper end is equipped with distance measuring sensor in verticality, infrared sensor A and infrared sensor B cooperate and detect head left and right swing, infrared sensor C and infrared sensor D cooperate and detect head forward and backward swing, and distance measuring sensor is used for detecting the distance of the top of the head, and electric sliding platform, infrared sensor A, infrared sensor B, infrared sensor C, infrared sensor D and distance measuring sensor are connected with controller respectively. It has reasonable structure design, carries out three -dimensional monitoring to the head reaction behavior of the measured object, and more comprehensive grasps the reaction behavior of the measured object.

Description

Technical fields:

[0001] This utility model relates to the field of lie detection equipment technology, specifically to a head posture sensing device for lie detection. Background technology:

[0002] The integrated investigation, testing, and interrogation model is a systematic working model that combines the advantages of three subsystems: investigation, psychological testing, and interrogation. Its operational steps include case investigation, pre-test interrogation, psychological testing, and post-test interrogation. Case investigation sets work objectives for psychological testing and interrogation; psychological testing fulfills the work objectives set by case investigation and interrogation, and provides psychological information support for both; interrogation verifies the investigation and psychological testing, proposes its own work needs, and converts psychological test results into written evidence to guide the direction of the investigation.

[0003] like Figure 5 The diagram shown illustrates the basic principle of psychological testing (also known as lie detection). Its core principle is to stimulate the suspect through questioning, causing behavioral and physiological responses. These physiological responses are typically monitored using lie detectors (such as...). Figure 6 As shown in the diagram (psychological test atlas), behavioral responses are usually observed manually and then comprehensively analyzed for judgment. Currently, lie detection technology for assessing a suspect's psychological responses is relatively mature, using various sensors to measure blood volume, skin temperature, and blood pressure. However, behavioral responses are typically only observed manually, which can lead to inadequate observation or omission of certain behaviors in actual lie detection, thus affecting the comprehensive judgment and analysis. In practical applications, it has been found that some test subjects exhibit head-related behaviors when questioned, such as tilting their heads forward (i.e., looking down), tilting them back, and moving their heads left and right. Therefore, it is necessary to monitor the head-related behaviors of test subjects to ensure timely and accurate monitoring.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention:

[0005] The purpose of this invention is to solve the problems existing in the prior art and provide a head posture sensing device for lie detection, which has a reasonable structural design, performs three-dimensional monitoring of the head reaction behavior of the test subject, and provides a more comprehensive understanding of the test subject's reaction behavior.

[0006] This utility model achieves the above objectives by adopting the following technical solutions:

[0007] A head posture sensing device for lie detection includes a lie detection seat. A base is located at the back of the lie detection seat. An electric slide is vertically mounted on the base. A bracket is mounted on the slide. Infrared sensors A and B are horizontally spaced apart on the bracket. Infrared sensors C and D are vertically spaced apart on the bracket. A distance sensor is vertically mounted at the top of the bracket. Infrared sensors A and B work together to detect left-right head movements. Infrared sensors C and D work together to detect forward-backward head movements. The distance sensor detects the distance to the top of the head. The electric slide, infrared sensors A, B, C, and D, and the distance sensor are all connected to a controller.

[0008] The electric slide table includes a vertically arranged guide rail, a slider on the guide rail, a lead screw seat and a lead screw nut on the slider, a servo motor on the base, a lead screw connected to the servo motor via a coupling, the lead screw being rotatably mounted via a bearing, the lead screw being mounted on the lead screw nut, and a slide table on the lead screw nut seat.

[0009] The bracket includes a vertical plate mounted on a slide table. The upper end of the vertical plate is provided with a top plate. A distance measuring sensor is vertically provided on the top plate. A horizontal plate A and a horizontal plate B are vertically spaced apart on the vertical plate. An infrared sensor A and an infrared sensor B are horizontally spaced apart on the horizontal plate A. A longitudinal plate A is provided on one side of the horizontal plate B and a longitudinal plate B is provided on the other side. An infrared sensor C is provided on the longitudinal plate A and an infrared sensor D is provided on the longitudinal plate B.

[0010] The top plate, vertical plate, horizontal plate A, vertical plate A, and vertical plate B are each provided with a waist-shaped hole to facilitate adjustment of the installation position.

[0011] The present invention, by adopting the above-described structure, can bring the following beneficial effects:

[0012] (1) In actual lie detection, a lie detection chair is usually provided. Therefore, the structure of this application is based on the design of a lie detection chair to meet the actual application requirements. (2) By designing an electric slide, the lifting requirements can be met. When raised, it is not only convenient for the lie detector to sit on the lie detection chair, but also the height can be adjusted according to the height of the lie detector after the lie detector sits down through the distance sensor, thereby meeting the lie detection needs of different heights. (3) By designing multiple infrared sensors, the head behavior reaction of the lie detector can be monitored in a timely and accurate manner and recorded by the controller and timer. This facilitates matching with other monitoring, especially for matching the content of the questions. Attached image description:

[0013] Figure 1This is a schematic diagram of the head posture sensing device for lie detection according to this utility model;

[0014] Figure 2 This is a schematic diagram of the head posture sensing device for lie detection according to this utility model;

[0015] Figure 3 This is a partial structural diagram of the sensing device of this utility model;

[0016] Figure 4 This is a diagram showing the infrared sensor and time monitoring results of this utility model;

[0017] Figure 5 A diagram illustrating the basic principles of psychological testing;

[0018] Figure 6 A psychological testing atlas of physiological responses;

[0019] In the diagram, 1. Lie detector chair, 2. Backrest, 3. Base, 4. Electric slide, 401. Guide rail, 402. Slider, 403. Nut seat, 404. Nut, 405. Servo motor, 406. Lead screw, 407. Slide, 5. Bracket, 501. Vertical plate, 502. Top plate, 503. Horizontal plate A, 504. Horizontal plate B, 505. Vertical plate A, 506. Vertical plate B, 6. Infrared sensor A, 7. Infrared sensor B, 8. Infrared sensor C, 9. Infrared sensor D, 10. Distance sensor, 11. Controller, 12. Waist-shaped hole, 13. Head. Detailed implementation method:

[0020] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0022] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0023] Furthermore, the terms “horizontal,” “vertical,” “longitudinal,” etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the location of the indicated technical feature.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "provided with," "set up," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] like Figure 1-4 As shown, a head posture sensing device for lie detection includes a lie detection seat 1. A base 3 is located at the rear end of the backrest 2 of the lie detection seat 1. An electric slide 4 is vertically mounted on the base 3. A bracket 5 is mounted on the slide 407 of the electric slide 4. Infrared sensors A6 and B7 are horizontally spaced on the bracket 5, and infrared sensors C8 and D9 are vertically spaced on the bracket 5. A distance sensor 10 is vertically mounted at the upper end of the bracket 5. Infrared sensors A6 and B7 work together to detect the left-right movement of the head 13, and infrared sensors C8 and D9 work together to detect the forward-backward movement of the head 13. The distance sensor 10 is used to detect the distance to the top of the head. The electric slide 4, infrared sensors A6, B7, C8, D9, and 10 are all connected to a controller 11. This application adds automated monitoring of head behavior responses to existing lie detection techniques, which helps to improve lie detection methods. Firstly, fully utilizing the existing design of lie detector chairs, this application's base 3 is designed based on lie detector chair 1. The base 3 can be adapted to the structure of lie detector chair 1, primarily using threaded connections for fixation. The electric slide 4, in conjunction with the distance sensor 10, raises the sensing device to its highest position in the initial state, providing sufficient space for the subject to sit down. Once seated, the distance sensor 10 automatically adjusts the height of the sensing device (e.g., the distance from the sensor to the top of the head can be set to 20mm-50mm) to accommodate different heights. Multiple infrared sensors and a controller 11 (requiring either a built-in timing function or a separate timing module) are used to record head movements and reactions.

[0026] The electric slide table 4 includes a vertically arranged guide rail 401, a slider 402 on the guide rail 401, a lead screw nut seat 403 and a lead screw nut 404 on the slider 402, a servo motor 405 on the base 3, and a lead screw 406 connected to the servo motor 405 via a coupling. The lead screw 406 is rotatably mounted via bearings and is installed on the lead screw nut 404. A slide table 407 is provided on the lead screw nut seat 403. Vertical lifting adjustment is achieved using a servo lead screw drive, which has advantages such as fast response and high transmission accuracy.

[0027] The bracket 5 includes a vertical plate 501 mounted on a slide table 407. A top plate 502 is located at the upper end of the vertical plate 501. A ranging sensor 10 is vertically mounted on the top plate 502. A horizontal plate A503 and a horizontal plate B504 are vertically spaced on the vertical plate 501. An infrared sensor A6 and an infrared sensor B7 are horizontally spaced on the horizontal plate A503. A longitudinal plate A505 is located on one side of the horizontal plate B504, and a longitudinal plate B506 is located on the other side. An infrared sensor C8 is mounted on the longitudinal plate A505, and an infrared sensor D9 is mounted on the longitudinal plate B506. The installation positions of each sensor in space are rationally allocated.

[0028] The upright plate 501, top plate 502, horizontal plate A503, vertical plate A505, and vertical plate B506 are each provided with waist-shaped holes 12 to facilitate adjustment of the installation position. The design of the waist-shaped holes 12 is mainly to meet the needs of adaptive adjustments according to the different circumstances of the lie detector subjects.

[0029] Figure 4 The right side corresponds to the detection of infrared sensor A6, the left side corresponds to the detection of infrared sensor B7, the back corresponds to the detection of infrared sensor C8, and the front corresponds to the detection of infrared sensor D9.

[0030] In practical applications, the specific models or parameters of the infrared sensor, ranging sensor 10, electric slide 4 and controller 11 can be selected accordingly. For controller 11, a PLC controller with built-in timing function is preferred. As for the software part (program control part), it can be directly entrusted to a third-party company to develop according to the design requirements of this application.

[0031] The above specific embodiments should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, any alternative improvements or modifications made to the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0032] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A head posture sensing device for lie detection, characterized in that, The device includes a lie detector chair. The backrest of the lie detector chair has a base, and a motorized slide is vertically mounted on the base. A bracket is mounted on the slide, and infrared sensors A and B are horizontally spaced apart on the bracket. Infrared sensors C and D are vertically spaced apart on the bracket. A distance sensor is vertically mounted at the top of the bracket. Infrared sensors A and B work together to detect left-right head movements, and infrared sensors C and D work together to detect forward-backward head movements. The distance sensor is used to detect the distance to the top of the head. The motorized slide, infrared sensors A, B, C, and D, and the distance sensor are all connected to a controller.

2. The head posture sensing device for lie detection according to claim 1, characterized in that, The electric slide table includes a vertically arranged guide rail, a slider on the guide rail, a lead screw seat and a lead screw nut on the slider, a servo motor on the base, a lead screw connected to the servo motor via a coupling, the lead screw being rotatably mounted via a bearing, the lead screw being mounted on the lead screw nut, and a slide table on the lead screw nut seat.

3. The head posture sensing device for lie detection according to claim 2, characterized in that, The bracket includes a vertical plate mounted on a slide table. The upper end of the vertical plate is provided with a top plate. A distance measuring sensor is vertically provided on the top plate. A horizontal plate A and a horizontal plate B are vertically spaced apart on the vertical plate. An infrared sensor A and an infrared sensor B are horizontally spaced apart on the horizontal plate A. A longitudinal plate A is provided on one side of the horizontal plate B and a longitudinal plate B is provided on the other side. An infrared sensor C is provided on the longitudinal plate A and an infrared sensor D is provided on the longitudinal plate B.

4. The head posture sensing device for lie detection according to claim 3, characterized in that, The top plate, vertical plate, horizontal plate A, vertical plate A, and vertical plate B are each provided with a waist-shaped hole to facilitate adjustment of the installation position.

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