Sudden cardiac arrest monitoring camera in hospital and recognition alarm system thereof

Abstract

The invention discloses a cardiac arrest monitoring camera in a hospital and an identification alarm system thereof, and belongs to the technical field of heart system monitoring, the cardiac arrest monitoring camera comprises a support and a camera main body installed on the support, and the camera main body is provided with a transparent window for protecting a lens. And the shell of the camera main body is provided with a needle swinging mechanism capable of automatically cleaning the transparent window. After a driving wheel rotates under the action of a driving motor, the driving wheel can be matched with a connecting wheel to drive a driven wheel to rotate on a shell, the driven wheel drives a threaded rod to rotate, and under the action of meshing connection, a moving block moves left and right on the threaded rod so as to be matched with a connecting rope to drag a sliding toothed plate. When the moving block moves in the direction close to the driven wheel, the moving block can be matched with the connecting rope to drive the sliding toothed plate to move rightwards at the front end of the shell, and therefore under the action of the semicircular toothed ring and the sliding toothed plate, the swing rod is adjusted to swing anticlockwise on the transparent window, and dust on the transparent window is scraped away.

Description

Technical Field

[0001] The present invention relates to the technical field of cardiac system monitoring, and in particular to a cardiac arrest monitoring camera in a hospital and an identification and alarm system thereof. Background Art

[0002] The human heart is one of the most important organs in the human body. Normally, once cardiac arrest occurs, if it is not rescued and resuscitated in time, it will cause irreversible damage to the patient's brain and other important organs and tissues in 4-6 minutes. Therefore, it is of great significance to detect cardiac arrest in time.

[0003] For patients with a history of heart attack, they are usually monitored by wearing dedicated equipment, such as a monitoring bracelet that can detect heart rate. Timely notification can be achieved outside the hospital. If in the hospital, the movements of fallen patients can also be monitored. For example, within a short period of time after a cardiac arrest patient falls to the ground, the patient loses consciousness. If monitoring equipment can be used to monitor the movements of people in the hospital at this time, after monitoring that the patient suddenly falls to the ground and does not move for a short period of time, medical staff can be notified in time to shorten the emergency rescue time for cardiac arrest patients. Summary of the invention

[0004] The object of the present invention is to provide a cardiac arrest monitoring camera and its identification and alarm system in a hospital to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A cardiac arrest monitoring camera in a hospital comprises a bracket and a camera body mounted on the bracket, wherein the camera body is provided with a transparent window for protecting a lens, and a swing needle mechanism capable of automatically cleaning the transparent window is provided on the shell of the camera body, wherein the swing needle mechanism comprises a swing rod with one end rotatably arranged on the shell, the swing rod rotates at a fan-shaped angle and is in close contact with the transparent window during the rotation process.

[0006] As a further solution of the present invention, the lower end of the swing rod is slidably provided with a semicircular tooth ring meshing with the sliding tooth plate, and the bottom of the swing rod is fixedly installed with a semicircular tooth ring meshing with the sliding tooth plate. The housing is provided with a guide groove for the sliding tooth plate to slide.

[0007] As a further solution of the present invention: wherein, a driving mechanism is provided at the rear end of the shell, and the driving mechanism includes a driving wheel rotatably arranged at the rear end of the shell, and the two sides of the driving wheel are meshingly connected with driven wheels through connecting wheels, and a threaded rod is fixedly installed at the output end of the driven wheel, and a threaded moving block is sleeved on the threaded rod, and the lower part of the moving block is connected to one end of the sliding tooth plate through a connecting rope.

[0008] As a further solution of the present invention: wherein, ventilation mechanisms are provided on both sides of the shell, and the ventilation mechanisms include fixed frames with one-way air inlet valves fixedly connected to both sides of the shell, sliding blocks are slidably connected inside the fixed frames, and hollow tubes fixedly connected to the sliding blocks, the hollow tubes are fixedly connected to the moving block at one end away from the sliding block, and the fixed frame is connected to a bent pipe with a one-way air outlet valve on one side of the transparent window, wherein the one-way air inlet valve is away from the bent pipe.

[0009] As a further solution of the present invention: wherein, the threads of the threaded rods on both sides of the shell are designed to be opposite, then during the operation of the two ventilation mechanisms, they are also in opposite states, one side of the ventilation mechanism is in the intake state, and the other side is in the exhaust state at the same time.

[0010] As a further scheme of the present invention: wherein, a heat dissipation hole is provided at the lower end of the shell, and a movable mechanism is arranged on the heat dissipation hole, and the movable mechanism includes a rectangular support frame, a movable groove is provided in the wide part of the support, a scraper with a hole groove is slidably connected inside the movable groove, both ends of the scraper protrude from the movable groove, and the hole groove on the scraper corresponds to the position and size of the heat dissipation hole, a connecting rod is hinged at the eccentric part of the connecting wheel, a guide rod is arranged in the middle of the scraper, and a buffer connecting rod is hingedly connected between the connecting rod and the guide rod.

[0011] As a further solution of the present invention: wherein, the buffer connecting rod includes a connecting rod B connected to the connecting rod at one end and a connecting rod A hinged to the guide rod at the other end, and the connecting rod A and the connecting rod B are connected.

[0012] As a further solution of the present invention: wherein, the end points of the connecting wheel are divided into a, b, c, and d. When the connecting wheel rotates, the connecting rod is driven to move from point a to point b. The connecting rod moves vertically on the surface of the connecting wheel. Under the action of the buffer connecting rod, the scraper is driven to move toward the front end of the camera through the guide rod, that is, vertical movement; and since lateral movement will also occur between point a and point b, the guide rod will also drive the scraper to move horizontally inside the support frame.

[0013] As a further solution of the present invention: wherein, the scraper is provided with an elastic member on the path of vertical movement.

[0014] A cardiac arrest recognition and alarm system in a hospital, characterized by comprising: A level 1 alarm module is used to trigger a level 1 alarm when clear signs of cardiac arrest are detected; A secondary alarm module is used to trigger a secondary alarm when a possible cardiac abnormality is detected but the condition has not yet reached the level of cardiac arrest; An image recognition module is disposed inside the camera body, and uses the camera to capture image data in the area, including the behavior and movements of falling, and uses image recognition technology to analyze the patient's movements and postures in real time; The physiological parameter acquisition module requires patients with medical history to wear relevant bracelets or monitoring equipment for monitoring physiological parameters to monitor heart rate, respiration and blood oxygen saturation to achieve real-time judgment of the patient's physiological condition. The physiological parameter module is connected to the image recognition module. The data obtained by the physiological parameter acquisition module is then transmitted to the monitoring pole camera. The facial and behavioral characteristics of the person are obtained by adjusting the angle of the monitoring camera, and a response is made after further judgment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The monitoring camera in this embodiment, after the driving wheel rotates under the action of the driving motor, will cooperate with the connecting wheel to drive the driven wheel to rotate on the housing, and the driven wheel will drive the threaded rod to rotate. Under the action of the meshing connection, the moving block moves left and right on the threaded rod to achieve the dragging of the sliding tooth plate with the connecting rope. When the moving block moves in the direction close to the driven wheel, it will cooperate with the connecting rope to drive the sliding tooth plate to move right at the front end of the housing, so that under the action of the semicircular gear ring and the sliding tooth plate, the swing rod is adjusted to swing counterclockwise on the transparent window, thereby achieving the scraping of dust on the transparent window.

[0016] 2. The surveillance camera in the present embodiment moves the moving block under the action of the threaded rod, and cooperates with the hollow tube to drive the sliding block to move inside the fixed frame. When the sliding block moves in the direction close to the bent pipe, a pushing effect is generated to push out the gas inside the fixed frame. For example, when the moving block moves to the left side as shown in the figure under the action of the threaded rod, the sliding block moves synchronously to the left side inside the fixed frame at this time, and the gas entering the fixed frame through the one-way air inlet valve is pushed out from the bent pipe under the action of the sliding block. The pushed-out gas acts on the swing rod through the one-way air outlet valve. At this time, the threaded rod on the other side of the shell has the opposite thread design, and the moving block moves in the opposite direction, that is, cooperates with the connecting rope to drag the sliding tooth plate to move right on the front end surface of the shell, so that the swing rod rotates counterclockwise, scrapes the dust on the transparent window to the side of the bent pipe where air is discharged, and then blows the dust outward when the air is discharged, avoiding the problem that the dust after being scraped off is re-adsorbed on the camera due to the existence of static electricity, thereby improving the cleaning efficiency.

[0017] 3. The alarm system in this embodiment, through the mutual cooperation of the primary alarm module and the secondary alarm module, when it is detected through the external monitoring equipment that the patient may suffer from cardiac arrest, by uploading the data information and again using the image recognition technology inside the camera to capture the patient's face and behavior, and then making a secondary judgment, thereby improving the efficiency of timely detection of patients with cardiac arrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 The enlarged schematic diagram at A in the middle; Figure 3 This is a schematic diagram of the camera backend structure in the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle; Figure 5 It is a schematic diagram of the ventilation mechanism in the present invention; Figure 6 It is a schematic diagram of the moving mechanism in the present invention; Figure 7 It is a schematic diagram of the connection between the driving mechanism and the moving mechanism in the present invention; Figure 8 For the present invention Figure 7 The enlarged schematic diagram at C in the middle; Fig. 9 For the present invention Figure 7 The enlarged schematic diagram at D in the middle; Fig.10 This is a schematic diagram for marking the vertices of the connecting wheel of the present invention.

[0019] The corresponding relationship between the illustrations and component names in the figure is as follows: 10. Bracket; 20. Camera body; 30. Swing needle mechanism; 31. Swing rod; 32. Sliding tooth plate; 33. Semicircular tooth ring; 34. Guide groove; 40. Driving mechanism; 41. Active wheel; 42. Connecting wheel; 43. Driven wheel; 44. Threaded rod; 45. Moving block; 46. Connecting rope; 50. Ventilation mechanism; 51. Fixed frame; 52. Sliding block; 53. Hollow tube; 54. Bend tube; 60. Moving mechanism; 61. Support frame; 62. Moving groove; 63. Scraper; 64. Connecting rod; 65. Guide rod; 66. Buffer connecting rod. DETAILED DESCRIPTION

[0020] See also Figure 1, which is a schematic diagram of the overall structure of the present application, the camera includes a bracket 10 and a camera body 20, the camera body 20 is designed to rotate on the bracket 10, and after finding a fallen patient, the camera body 20 can automatically adjust the angle to obtain the patient's information in the maximum range. A transparent window is provided on the shell of the camera body 20, and the lens provided inside the camera body 20 can monitor the external environment through the transparent window.

[0021] On the basis of the above, the camera body 20 needs to capture the picture in high definition during the monitoring process, so as to obtain abnormal performance and subtle changes in the face of the fallen patient. Therefore, in order to ensure the cleanliness of the transparent window, the transparent window needs to be cleaned regularly. Because the cameras in the prior art are generally installed at high places and in corners, this not only protects the camera from external damage, but also the observation angle range in the corner will be larger. Therefore, after use, the camera will be covered with dust, which will reduce the cleanliness of the transparent observation window and affect the lens's monitoring of the external environment. If cleaning is required, professional personnel will need to be arranged to climb up to clean it, which will inevitably affect the normal flow of personnel in the hospital.

[0022] Therefore, in order to solve this problem, Figure 2 and Figure 3 As shown, a swing needle mechanism 30 which can automatically clean the transparent window is now proposed. The swing needle mechanism 30 includes a swing rod 31 with one end rotatably arranged on the shell of the camera body 20. The swing rod 31 is in close contact with the transparent window. When the swing rod 31 swings left and right, the dust adhered to the transparent window can be scraped off, thereby eliminating manual cleaning and saving time and energy.

[0023] Furthermore, in order to realize the automatic operation of the swing lever 31, a gear 32 is slidably provided at the lower end of the swing lever 31, and a semicircular gear ring 33 meshingly connected with the sliding gear plate 32 is fixedly installed at the bottom of the swing lever 31. A guide groove 34 for the sliding gear plate 32 to slide is provided on the housing.

[0024] The rear end of the housing is provided with a driving mechanism 40, which includes a driving wheel 41 rotatably arranged at the rear end of the housing, and driven wheels 43 are meshedly connected to each other on both sides of the driving wheel 41 through connecting wheels 42, and threaded rods 44 are fixedly installed at the output ends of the driven wheels 43, and the threads of the threaded rods 44 on both sides of the housing are designed in opposite directions. A moving block 45 is sleeved on the threaded rod 44, and the lower part of the moving block 45 is connected to one end of the sliding tooth plate 32 through a connecting rope 46. In this embodiment, after the driving wheel 41 rotates under the action of the driving motor, it will cooperate with the connecting wheel 42 to drive the driven wheel 43 to rotate on the housing, and the driven wheel 43 will drive the threaded rod 44 to rotate. Under the action of the meshing connection, the moving block 45 moves left and right on the threaded rod 44 to achieve the dragging of the sliding tooth plate 32 in cooperation with the connecting rope 46. When the moving block 45 moves toward the direction approaching the driven wheel 43, it will cooperate with the connecting rope 46 to drive the sliding tooth plate 32 to move rightward at the front end of the shell. Under the action of the semicircular tooth ring 33 and the sliding tooth plate 32, the swing rod 31 is adjusted to swing counterclockwise on the transparent window, thereby achieving the scraping of dust on the transparent window.

[0025] However, although the above-mentioned mechanical cleaning method can effectively remove the dust on the transparent window, the dust scraped off by the swing rod 31 will be re-adsorbed onto the camera under the action of static electricity. Therefore, in order to more thoroughly clean the adsorbed dust, the present application also makes the following improvements.

[0026] like Figure 4 As shown, ventilation mechanisms 50 are provided on both sides of the shell, and the ventilation mechanisms 50 include fixed frames 51 with one-way air inlet valves fixedly connected to both sides of the shell, sliding blocks 52 are slidably connected inside the fixed frames 51, and hollow tubes 53 fixedly connected to the sliding blocks 52, and the hollow tubes 53 are fixedly connected to the moving blocks 45 at one end away from the sliding blocks 52. Because the sliding blocks 52 can only move back and forth inside the fixed frames 51, the moving blocks 45 can move under the action of the threaded rods 44, so the sliding rod blocks 52 moving inside the fixed frames 51 can generate gas flow. The fixed frames 51 are connected to a curved pipe 54 with a one-way air outlet valve on one side of the transparent window, wherein the one-way air inlet valve is away from the curved pipe. The air outlet end of the curved pipe 54 is close to the maximum swing angle of the swinging rod 31. In this embodiment, the moving block 45 moves under the action of the threaded rod 44, and cooperates with the hollow tube 53 to drive the sliding block 52 to move inside the fixed frame 51. When the sliding block 52 moves toward the direction close to the curved tube 54, a gas pushing effect is generated to push the gas inside the fixed frame 51 out. For example, when the moving block 45 moves toward the curved tube 54 under the action of the threaded rod 44, Figure 4The gas that has entered the fixed frame 51 through the one-way air inlet valve is pushed out from the elbow 54 under the action of the sliding block 52, and the pushed out gas acts on the swing rod 31 through the one-way air outlet valve. At this time, the threaded rod 44 on the other side of the shell has the opposite thread design, and the moving block 45 will move in the opposite direction, that is, cooperate with the connecting rope 46 to drag the sliding tooth plate 32 to move right on the front end surface of the shell, so that the swing rod 31 rotates counterclockwise, scraping the dust on the transparent window to the side of the elbow 54 where air is discharged, and then in the case of air discharge, the dust will be blown out, avoiding the problem that the dust after being scraped is re-adsorbed on the camera due to the existence of static electricity, thereby improving the cleaning efficiency.

[0027] Moreover, on the basis of the above, because the ventilation mechanisms 50 on both sides of the shell are in opposite designs, one side is in the state of suction while the other side is in the state of deflation, so that when the swing rod 31 swings counterclockwise, the scraping direction will blow away the accumulated dust due to the effect of deflation; when the swing rod 31 rotates clockwise, the ventilation mechanism 50 in the clockwise rotation direction will be in the state of deflation again, and the dust will be blown away again.

[0028] like Figures 5 to 10 As shown, each surveillance camera requires a heat dissipation mechanism. For cameras with special requirements in this application, the requirements for heat dissipation are higher. Therefore, this application also makes the following improvements.

[0029] The lower end of the shell is provided with a heat dissipation hole, and a moving mechanism 60 is arranged on the heat dissipation hole. The moving mechanism 60 includes a support frame 61 of rectangular design, and a moving groove 62 is arranged at the wide part of the support 61. A scraper 63 with holes and grooves is slidably connected inside the moving groove 62. Both ends of the scraper 63 protrude from the moving groove 62, and the holes and grooves on the scraper 63 correspond to the position and size of the heat dissipation hole. A connecting rod 64 is hinged at the eccentric part of the connecting wheel 42, and a guide rod 65 is arranged in the middle of the scraper 63. A buffer connecting rod 66 is hingedly connected between the connecting rod 64 and the guide rod 65.

[0030] The buffer link 66 includes a link B connected to the connecting rod 64 at one end and a link A hinged to the guide rod 65 at the other end, and the link A is connected to the link B. In this embodiment, the four vertices of the connecting wheel 42 are marked as a, b, c, and d respectively. When the connecting wheel 42 rotates, the connecting rod 64 is driven to move from point a to point b. The connecting rod 64 moves vertically on the surface of the connecting wheel 42. Under the action of the buffer link 66, the guide rod 65 drives the scraper 63 to move toward the front end of the camera (i.e., vertical movement). Since there is also a lateral movement between point a and point b, the guide rod 65 also drives the scraper 63 to move horizontally inside the support frame 61. Therefore, when moving from point b to point c and point d, it is the same or opposite to the above movement process. That is, when moving from point a to point c, the scraper 63 completes the lateral movement inside the support frame 61, and the scraper 63 completes an up and down reciprocating movement in the vertical direction. This process is called a "movement". When moving from point c to point a, the movement process is opposite to the above-mentioned "movement" and is called a "movement pair". Under the combination of a "movement" and a "movement pair", the scraper 63 completes the cleaning of the heat dissipation holes. At the same time, an elastic member is set on the path of the vertical movement of the scraper 63. After the scraper 63 completes a "movement" and a "movement pair", there will be a maximum distance and a minimum distance between the scraper and the connecting wheel 42. The scraper 63 moves between the maximum distance and the minimum distance. Therefore, the elastic members set at these two points can play the effect of vibrating the scraper 63. Furthermore, after the scraper 63 cleans the dust in the heat dissipation hole, the scraper 63 itself will vibrate due to contact with the elastic member during the movement, thereby causing the dust to fall off.

[0031] The present application also discloses a cardiac arrest monitoring and recognition alarm system in a hospital, which is applied inside the above-mentioned surveillance camera, including: The first-level alarm module is used to immediately trigger a first-level alarm when clear signs of cardiac arrest are detected, such as red lights and high-decibel alarm sounds to notify medical staff and clearly indicate the location of the cardiac arrest and patient information; the first-level alarm module is mostly used for ambulatory patients in outpatient clinics.

[0032] The secondary alarm module triggers a secondary alarm when the system detects possible cardiac abnormalities (such as too fast or too slow heart rate, breathing difficulties) but has not yet reached the level of cardiac arrest. This alarm method notifies medical staff in a gentler way (such as yellow light, low-decibel alarm sound) so that they can prepare in advance and take necessary preventive measures. The secondary module can be used for hospitalized patients.

[0033] The alarm method can collect data through monitoring cameras, then encode the data according to the encoder and transmit it through wired or wireless transmission. During the transmission process, the network switch forwards and distributes the data, and the background video server / storage device receives, processes and stores it. Finally, the picture and location information can be displayed on the monitoring software / platform and can be viewed in real time. The system also includes an image recognition module and a physiological parameter acquisition module. The image recognition module is built into the surveillance camera and captures image data through the camera, including the patient's falling behavior. Image recognition technology is used to analyze the patient's movements and postures in real time. When the patient suddenly falls, convulses, or loses consciousness, etc., and these behaviors may be related to cardiac arrest, the system will immediately trigger an alarm. At the same time, the image recognition module can also identify subtle changes in the patient's face, such as cyanosis of the lips and pale complexion, which may be signs of cardiac arrest.

[0034] In the physiological parameter acquisition module, patients with medical history need to wear relevant bracelets or monitor physiological parameter monitoring equipment to monitor their heart rate, breathing and blood oxygen saturation to determine the patient's physiological condition in real time. This can timely screen out patients who may suffer from cardiac arrest. This data information is then transmitted to the surveillance camera, which adjusts the angle of the surveillance camera to obtain the facial and behavioral characteristics of the person, so as to make further judgments and respond.

[0035] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cardiac arrest monitoring camera in a hospital, comprising a bracket (10) and a camera body (20) mounted on the bracket (10), characterized in that: The camera body (20) is provided with a transparent window for protecting a lens, and the housing of the camera body (20) is provided with a oscillating needle mechanism (30) capable of automatically cleaning the transparent window, the oscillating needle mechanism (30) comprising a oscillating rod (31) having one end rotatably disposed on the housing of the camera body (20), the oscillating rod (31) rotating at a fan-shaped angle and in close contact with the transparent window during the rotation process.

2. The in-hospital cardiac arrest monitoring camera according to claim 1, characterized in that: A sliding tooth plate (32) is slidably provided at the lower end of the swing rod (31), a semicircular tooth ring (33) meshingly connected to the sliding tooth plate (32) is fixedly installed at the bottom of the swing rod (31), and a guide groove (34) for the sliding tooth plate (32) to slide is provided on the housing.

3. The in-hospital cardiac arrest monitoring camera according to claim 2, characterized in that: A driving mechanism (40) is provided at the rear end of the housing, the driving mechanism (40) comprising a driving wheel (41) rotatably provided at the rear end of the housing, driven wheels (43) being meshedly connected to the two sides of the driving wheel (41) via connecting wheels (42), a threaded rod (44) being fixedly mounted on the output end of the driven wheel (43), a moving block (45) being threadedly connected to the threaded rod (44), and a lower portion of the moving block (45) being connected to one end of the sliding tooth plate (32) via a connecting rope (46).

4. The in-hospital cardiac arrest monitoring camera according to claim 3, characterized in that: A ventilation mechanism (50) is provided on both sides of the shell, and the ventilation mechanism (50) comprises a fixed frame (51) with a one-way air inlet valve fixedly connected to both sides of the shell, a sliding block (52) is slidably connected inside the fixed frame (51), and a hollow tube (53) fixedly connected to the sliding block (52), the hollow tube (53) is fixedly connected to the moving block (45) at one end away from the sliding block (52), and a bent pipe (54) with a one-way air outlet valve is provided on one side of the fixed frame (51) in communication with the transparent window, wherein the one-way air inlet valve is away from the bent pipe (54).

5. The in-hospital cardiac arrest monitoring camera according to claim 4, characterized in that: The threads of the threaded rods (44) on both sides of the housing are designed to be opposite, so during the operation of the two ventilation mechanisms (50), the ventilation mechanisms (50) on one side are also in an inhalation state, while the other side is in a deflation state.

6. The in-hospital cardiac arrest monitoring camera according to claim 3, characterized in that: A heat dissipation hole is provided at the lower end of the shell, and a moving mechanism (60) is arranged on the heat dissipation hole. The moving mechanism (60) comprises a support frame (61) of rectangular design, a moving groove (62) is provided at the wide part of the support frame (61), a scraper (63) with a hole groove is slidably connected inside the moving groove (62), two ends of the scraper (63) protrude from the moving groove (62), and the hole groove on the scraper (63) corresponds to the position and size of the heat dissipation hole, a connecting rod (64) is hingedly connected at the eccentric part of the connecting wheel (42), a guide rod (65) is arranged at the middle part of the scraper (63), and a buffer connecting rod (66) is hingedly connected between the connecting rod (64) and the guide rod (65).

7. The in-hospital cardiac arrest monitoring camera according to claim 6, characterized in that: The buffer connecting rod (66) comprises a connecting rod B connected to the connecting rod (64) at one end and a connecting rod A hinged to the guide rod (65) at the other end, and the connecting rod A and the connecting rod B are connected.

8. The in-hospital cardiac arrest monitoring camera according to claim 6, characterized in that: The end points of the connecting wheel (42) are divided into a, b, c, and d. When the connecting wheel (42) rotates, the connecting rod (64) is driven to move from point a to point b. The connecting rod (64) moves vertically on the surface of the connecting wheel (42). Under the action of the buffer connecting rod (66), the scraper (63) is driven to move toward the front end of the camera through the guide rod (65), that is, the vertical movement; and because the scraper (63) also moves horizontally from point a to point b, the guide rod (65) also drives the scraper (63) to move horizontally inside the support frame (61).

9. The in-hospital cardiac arrest monitoring camera according to claim 8, characterized in that: The scraper (63) is provided with an elastic member on the path of vertical movement.

10. A cardiac arrest recognition and alarm system for use in a hospital according to any one of claims 1 to 9, characterized in that: include: A level 1 alarm module is used to trigger a level 1 alarm when clear signs of cardiac arrest are detected; A secondary alarm module is used to trigger a secondary alarm when a possible cardiac abnormality is detected but the condition has not yet reached the level of cardiac arrest; An image recognition module is arranged inside the camera body (20), and uses the camera to capture image data in the area, including the behavior and movements of falling, and uses image recognition technology to analyze the patient's movements and postures in real time; The physiological parameter acquisition module requires patients with medical history to wear relevant bracelets or monitoring equipment for monitoring physiological parameters to monitor heart rate, respiration and blood oxygen saturation to achieve real-time judgment of the patient's physiological condition. The physiological parameter module is connected to the image recognition module. The data obtained by the physiological parameter acquisition module is then transmitted to the monitoring pole camera. The facial and behavioral characteristics of the person are obtained by adjusting the angle of the monitoring camera, and a response is made after further judgment.

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