Automatic safety belt alarm system

Abstract

An automatic safety belt alarm system, comprising a first sending module (1), a first receiving module (2), and a first safety belt (3). The first sending module comprises a first sending power supply (11), a first sending apparatus (12), a first limit switch (13), and a first sending circuit (14). The first receiving module comprises a first receiving power supply (21), a first receiving apparatus (22), an alarm apparatus (23), and a first receiving circuit (24). In the safety belt automatic alarm system, when a buckle of the first safety belt is buckled as normal, a buckled object presses and opens a first limit switch, the first message receiving apparatus does not receive a first danger signal, and the alarm apparatus does not operate; when the buckle loop of the first safety belt is not buckled, the first limit switch is closed, and the first message receiving apparatus controls the alarm apparatus to be powered on, so as to alert an operator and / or a guardian that the safety belt is not buckled, thereby avoiding safety accidents caused by improper use of the safety belt, and ensuring the safety of the operator during high-elevation operations.

Description

Automatic safety belt warning system TECHNICAL FIELD

[0001] The present application relates to the technical field of safety production equipment, in particular to an automatic safety belt warning system. BACKGROUND

[0002] When working at a high place, safety protection needs to be done well, and the correct use and wearing of a safety belt is very important. However, in actual supervision of high-altitude operation, it is found that some operators of high-altitude operation have illegal behaviors, resulting in the loss of protection of the safety belt. Although a guardian can be arranged to play a reminding and supervising role, the guardian cannot keep looking up and cannot continuously ensure the safety of the operator.

[0003] SUMMARY

[0004] The main purpose of the present application is to provide an automatic safety belt warning system to solve the problem that the safety of the operator working at a high place cannot be ensured only by the guardian in the related art.

[0005] In order to achieve the above purpose, the present application provides an automatic safety belt warning system, which comprises a first signaling module, a first receiving module and a first safety belt. The first signaling module comprises a first signaling power supply, a first signaling device, a first limit switch and a first signaling circuit. The first receiving module comprises a first receiving power supply, a first receiving device, an alarm device and a first receiving circuit. The first signaling power supply is used to supply power to the first signaling device through the first signaling circuit and the first limit switch. The first signaling module is arranged on the first safety belt. The lever of the first limit switch is arranged towards the inner side of the buckle ring of the first safety belt. The first limit switch is normally closed. The first receiving power supply is used to supply power to the first receiving device and the alarm device through the first receiving circuit. The first signaling device is used to send a first danger signal to the first receiving device. When the first receiving device receives the first danger signal, the first receiving device controls the alarm device to be turned on.

[0006] Further, the first safety belt, the second safety belt and the anti-falling differential are provided with the first signaling module, the second signaling module and the third signaling module respectively, the signaling module comprises a signaling power supply, a signaling device, a limit switch and a signaling circuit, the signaling power supply is used for supplying power to the signaling device through the signaling circuit and the limit switch, the limit switch of the signaling module is provided towards the inside of a buckle ring of the safety belt, and the limit switch is normally closed; the first signaling device is used for sending a first danger signal to the receiving device body; when the receiving device body receives the first danger signal, the receiving device body controls the alarm device to open through the AND gate element.

[0007] Further, the first safety belt, the second safety belt and the anti-falling differential are provided with the first signaling module, the second signaling module and the third signaling module respectively, the signaling module comprises a signaling power supply, a signaling device, a limit switch and a signaling circuit, the signaling power supply is used for supplying power to the signaling device through the signaling circuit and the limit switch, the limit switch of the signaling module is provided towards the inside of a buckle ring of the safety belt, and the limit switch is normally closed; the first signaling device is used for sending a first danger signal to the receiving device body; when the receiving device body receives the first danger signal, the receiving device body controls the alarm device to open through the AND gate element.

[0008] Further, the first signaling module further comprises a first signaling switch arranged on the first signaling circuit; the second signaling module further comprises a second signaling switch arranged on the second signaling circuit; and the third signaling module further comprises a third signaling switch arranged on the third signaling circuit.

[0009] Further, the first receiving module further comprises a first receiving switch arranged on the first receiving circuit.

[0010] Further, the first safety belt is provided with a first protective sleeve, and the first signaling module is mounted on the first protective sleeve; the second safety belt is provided with a second protective sleeve, and the second signaling module is mounted on the second protective sleeve; and the anti-falling differential is provided with a third protective sleeve, and the third signaling module is mounted on the third protective sleeve.

[0011] Further, the first limit switch is rotatably connected with a first roller on the lever thereof; the second limit switch is rotatably connected with a second roller on the lever thereof; and the third limit switch is rotatably connected with a third roller on the lever thereof.

[0012] Further, the first signaling power supply, the second signaling power supply and the third signaling power supply are all button batteries.

[0013] Further, the first receiving power supply is a rechargeable battery.

[0014] Further, the alarm device is a buzzer or a human voice alarm.

[0015] In the safety belt automatic alarm system of the present application, the first receiving power supply supplies power to the first receiving device and the alarm device through the first receiving circuit, the first signaling power supply supplies power to the first signaling device through the first signaling circuit and the first limit switch, and the lever of the first limit switch is arranged towards the inner side of the buckle of the first safety belt. When the buckle of the first safety belt is normally buckled, the buckled object (such as a hanging ring, a rope, etc.) will press the first limit switch to open, the first signaling device is not powered, the first receiving device will not receive the first danger signal, and the alarm device will not work, at this time, the operator is protected by the first safety belt. When the buckle of the first safety belt is not buckled well, the first limit switch is in a normally closed state, the first signaling device is powered to work to send the first danger signal to the first receiving device, after the first receiving device receives the first danger signal, the alarm device is powered to open, thereby reminding the operator and / or the guardian that the safety belt is not buckled well, avoiding the occurrence of safety accidents caused by illegal use of the safety belt, and ensuring the safety of the operator during high-altitude operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Fig. 1 shows a schematic view of the first safety belt in the present application;

[0018] Fig. 2 shows a schematic view of the first limit switch in the present application;

[0019] Fig. 3 shows a circuit diagram of the first signaling module in the present application;

[0020] Fig. 4 shows a circuit diagram of the first receiving module in the present application;

[0021] Fig. 5 shows a logic diagram of the AND element in the present application.

[0022] Wherein, the above-mentioned drawings include the following reference signs: 1, first sending module; 11, first sending power supply; 12, first sending device; 13, first limit switch; 131, first scroll wheel; 14, first sending circuit; 15, first sending switch; 2, first receiving module; 21, first receiving power supply; 22, first receiving device; 221, receiving device body; 222, AND gate element; 23, alarm device; 24, first receiving circuit; 25, first receiving switch; 3, first safety belt; 31, first protective sleeve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0024] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0025] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not meant to limit the scope of the present application. It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for the purpose of convenience of description. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description when appropriate.

[0026] The application provides a safety belt automatic alarm system, which comprises a first signaling module 1, a first receiving module 2 and a first safety belt 3, the first signaling module 1 comprises a first signaling power supply 11, a first signaling device 12, a first limit switch 13 and a first signaling circuit 14, the first receiving module 2 comprises a first receiving power supply 21, a first receiving device 22, an alarm device 23 and a first receiving circuit 24, wherein: the first signaling power supply 11 is used for supplying power to the first signaling device 12 through the first signaling circuit 14 and the first limit switch 13, the first safety belt 3 is provided with the first signaling module 1, the lever of the first limit switch 13 is arranged towards the inner side of the buckle of the first safety belt 3, and the first limit switch 13 is normally closed; the first receiving power supply 21 is used for supplying power to the first receiving device 22 and the alarm device 23 through the first receiving circuit 24, and the first signaling device 12 is used for sending a first danger signal to the first receiving device 22; when the first receiving device 22 receives the first danger signal, the first receiving device 22 controls the alarm device 23 to be turned on.

[0027] In combination with the end of the first safety belt 3 shown in Figure 1, the buckle and the rope are connected together, in the use process, the buckle of the first safety belt 3 can be buckled on the hanging ring, the rope or other fixed objects (such as the crossbeam of the ladder) and the like according to the needs, so as to prevent the operator from falling. In combination with Figures 2 to 4, the first limit switch 13 is normally closed, when the buckle of the first safety belt 3 is not buckled well (i.e. the lever of the first limit switch 13 is not subjected to external force), the first limit switch 13 is closed and conducted, so that the first signaling power supply 11 supplies power to the first signaling device 12 through the first signaling circuit 14, the first signaling device 12 sends a first danger signal to the first receiving device 22, the first receiving power supply 21 supplies power to the first receiving device 22 and the alarm device 23 through the first receiving circuit 24, after the first receiving device 22 receives the first danger signal, the first receiving device 22 controls the alarm device 23 to be powered and work (i.e. the alarm device 23 is turned on), and sends alarm information (such as sound, light, vibration and the like which can play an alarm role); taking the buckle of the first safety belt 3 and the rope as an example, after the buckle of the first safety belt 3 is buckled, the rope is located at the inner side of the buckle and presses the lever of the first limit switch 13 (i.e. the lever of the first limit switch 13 receives the force of the rope), so that the first limit switch 13 is disconnected, the first signaling device 12 is not powered, the first receiving device 22 does not receive the first danger signal, and thus controls the alarm device 23 to be not powered and not work (i.e. the alarm device 23 is turned off). The first receiving module 2 can be carried by the operator and / or the guardian according to the needs, or can be fixedly installed at the corresponding position, so as to be supervised and guided by the guardian.

[0028] It should be noted that the number of the first signaling modules 1 is not limited, and a plurality of first signaling modules 1 can be provided, for example, the operator usually wears a plurality of safety belts or a plurality of buckles on the safety belt, and a first signaling module 1 can be provided for each safety belt or each buckle; similarly, the number of the first receiving modules 2 is also not limited, for example, the operator and the guardian each carry a first receiving module 2; in addition, the first signaling device 12 and the first receiving device 22 can realize signal transmission through network communication, so that when the operator and the guardian are far away, the first receiving module 2 carried by the guardian can still normally play an alarm role, and for the first receiving module 2 carried by the operator himself, signal transmission can be realized through a data line or other wired mode, which can be selected as required.

[0029] In the safety belt automatic alarm system of the present application, the first receiving power supply 21 supplies power to the first receiving device 22 and the alarm device 23 through the first receiving circuit 24, the first signaling power supply 11 supplies power to the first signaling device 12 through the first signaling circuit 14 and the first limit switch 13, and the lever of the first limit switch 13 is arranged towards the inner side of the buckle of the first safety belt 3; when the buckle of the first safety belt 3 is normally buckled, the buckled object (such as a hanging ring, a rope, etc.) will press and open the first limit switch 13, the first signaling device 12 is not powered, the first receiving device 22 will not receive the first danger signal, and the alarm device 23 does not work, at this time the operator is protected by the first safety belt 3; when the buckle of the first safety belt 3 is not buckled well, the first limit switch 13 is in a normally closed state, the first signaling device 12 is powered and works to send the first danger signal to the first receiving device 22, after the first receiving device 22 receives the first danger signal, the alarm device 23 is powered and turned on, thereby reminding the operator and / or the guardian that the safety belt is not buckled well, avoiding the occurrence of safety accidents caused by illegal use of the safety belt, and ensuring the safety of the operator during high-altitude operation.

[0030] Further, the second safety belt and the second signaling module are further included, the second signaling module includes a second signaling power supply, a second signaling device, a second limit switch and a second signaling circuit, the second signaling power supply is used for supplying power to the second signaling device through the second signaling circuit and the second limit switch, the second signaling module is arranged on the second safety belt, the lever of the second limit switch is arranged towards the inner side of the buckle of the second safety belt, and the second limit switch is arranged in a normally closed state; the first receiving device 22 includes a receiving device body 221 and an AND element 222, the receiving device body 221 is connected with the alarm device 23 through the AND element 222, and the second signaling device is used for sending a second danger signal to the receiving device body 221; when the receiving device body 221 receives the first danger signal and the second danger signal, the receiving device body 221 controls the alarm device 23 to be turned on through the AND element 222.

[0031] In the embodiment, the operator can wear the second safety belt and the first safety belt 3 simultaneously, the first signaling module 1 is arranged on the first safety belt 3, the second signaling module is arranged on the second safety belt, the first signaling module 1 and the second signaling module are basically the same in structure, and the second safety belt is equivalent to a backup of the first safety belt 3, so as to further improve the safety. As shown in FIG. 4, the first receiving device 22 specifically includes a receiving device body 221 and an AND element 222. When the first safety belt 3 and the second safety belt are normally buckled, the first limit switch 13 and the second limit switch are both disconnected by the force of the buckled object, the first signaling device 12 and the second signaling device are both not powered, the receiving device body 221 does not receive the first danger signal and the second danger signal, and the alarm device 23 is closed. When only one of the buckling rings of the first safety belt 3 and the second safety belt is not buckled well, that is, the receiving device body 221 only receives one of the first danger signal and the second danger signal, the alarm device 23 is closed. When the first safety belt 3 and the second safety belt are both not buckled well, the receiving device body 221 receives the first danger signal and the second danger signal, and the receiving device body 221 controls the alarm device 23 to be opened through the AND element 222. At this time, the first safety belt 3 and the backup second safety belt are both not buckled well, so the alarm device 23 can remind the operator and the guardian, and ensure the safety of the operator working at a high place.

[0032] Further, the anti-falling differential and the third signaling module are further included. The third signaling module includes a third signaling power supply, a third signaling device, a third limit switch and a third signaling circuit. The third signaling power supply is used to supply power to the third signaling device through the third signaling circuit and the third limit switch. The anti-falling differential is provided with the third signaling module. The lever of the third limit switch is arranged towards the inner side of the buckling ring of the anti-falling differential. The third limit switch is normally closed. The third signaling device is used to send a third danger signal to the receiving device body 221. When the receiving device body 221 receives the first danger signal, the second danger signal and the third danger signal, the receiving device body 221 controls the alarm device 23 to be opened through the AND element 222.

[0033] In this embodiment, the operator can wear the first safety belt 3, the second safety belt and the anti-falling differential at the same time, the first signaling module 1 is arranged on the first safety belt 3, the second signaling module is arranged on the second safety belt, and the third signaling module is arranged on the anti-falling differential. The structures of the first signaling module 1, the second signaling module and the third signaling module are basically the same. The second safety belt is a backup of the first safety belt 3, and the anti-falling differential can prevent the operator from falling after the first safety belt 3 and the second safety belt fail, so as to further improve the safety. As shown in FIGS. 4 and 5, only when the receiving device body 221 receives the first danger signal, the second danger signal and the third danger signal, the receiving device body 221 will control the alarm device 23 to open through the door element 222, and in other cases (i.e. in the case of receiving one or two of the first danger signal, the second danger signal and the third danger signal, and in the case of not receiving all three), the alarm device 23 is closed.

[0034] In this way, the first safety belt 3, the second safety belt and the anti-falling differential can better ensure the safety of the operator during high-altitude operation, and the safety belt automatic alarm system can open the alarm device 23 to remind the operator and / or the guardian when the first safety belt 3, the second safety belt and the anti-falling differential are not buckled (i.e. when the receiving device body 221 receives the first danger signal, the second danger signal and the third danger signal), so as to better protect the operator and prevent falling accidents.

[0035] Further, the first signaling module 1 further comprises a first signaling switch 15 arranged on the first signaling circuit 14; the second signaling module further comprises a second signaling switch arranged on the second signaling circuit; and the third signaling module further comprises a third signaling switch arranged on the third signaling circuit.

[0036] As shown in FIG. 3, the first signaling switch 15 is arranged on the first signaling circuit 14 and serves as the master switch of the first signaling module 1. Similarly, the second signaling switch serves as the master switch in the second signaling module, and the third signaling switch serves as the master switch in the third signaling module. When the first signaling module 1, the second signaling module and the third signaling module are not needed, the first signaling switch 15, the second signaling switch and the third signaling switch can be closed to save power.

[0037] Further, the first receiving module 2 further comprises a first receiving switch 25 arranged on the first receiving circuit 24.

[0038] As shown in FIG. 4, the first receiving switch 25 is arranged on the first receiving circuit 24 and serves as the master switch of the first receiving module 2. When the first receiving module 2 is not needed, the first receiving switch 25 can be closed to save power.

[0039] Further, the first safety belt 3 is sleeved with a first protective sleeve 31, and the first signaling module 1 is installed in the first protective sleeve 31; the second safety belt is sleeved with a second protective sleeve, and the second signaling module is installed in the second protective sleeve; and the anti-falling differential is sleeved with a third protective sleeve, and the third signaling module is installed in the third protective sleeve.

[0040] As shown in FIG. 1, the first protective sleeve 31 is sleeved on the rope of the first safety belt 3, which can prevent the rope of the first safety belt 3 from being abraded and from being wet. Similarly, the second protective sleeve can prevent the rope of the second safety belt from being abraded and from being wet, and the third protective sleeve can prevent the rope of the anti-falling differential from being abraded and from being wet. The first signaling module 1 is installed in the first protective sleeve 31, the second signaling module is installed in the second protective sleeve, and the third signaling module is installed in the third protective sleeve.

[0041] In this way, the first protective sleeve 31, the second protective sleeve, and the third protective sleeve can prevent the first signaling module 1, the second signaling module, and the third signaling module from being abraded and from being wet, thereby prolonging the service life.

[0042] Further, the first limiting switch 13 is rotatably connected with a first roller 131; the second limiting switch is rotatably connected with a second roller; and the third limiting switch is rotatably connected with a third roller.

[0043] As shown in FIG. 1 and FIG. 2, the first roller 131 is rotatably connected with the lever of the first limiting switch 13. Taking the first safety belt 3 buckled with the rope as an example, the first roller 131 is in rolling contact with the rope. Similarly, the second roller is rotatably connected with the lever of the second limiting switch, and the third roller is rotatably connected with the lever of the third limiting switch.

[0044] In this way, the first roller 131, the second roller, and the third roller can reduce friction, thereby avoiding abrasion caused by the direct contact between the lever and the buckled object (such as a hanging ring, a rope, etc.).

[0045] Further, the first signaling power supply 11, the second signaling power supply, and the third signaling power supply are all button batteries.

[0046] In this embodiment, the first signaling power supply 11, the second signaling power supply, and the third signaling power supply all adopt button batteries, which occupy less space. This is conducive to reducing the volume of the first signaling module 1, the second signaling module, and the third signaling module, and minimizing the impact on the safety belt.

[0047] Further, the first receiving power supply 21 is a rechargeable battery.

[0048] In the embodiment, the first receiving module 2 can be carried by the guardian or directly fixed and installed at a corresponding position for the guardian to view and supervise, so that a rechargeable battery can be used, so that the first receiving module 2 can be used for a long time, and the guardian can continuously supervise and protect the operator.

[0049] Further, the alarm device 23 is a buzzer or a human voice alarm.

[0050] The alarm device 23 can be a buzzer or a human voice alarm as needed, which can more effectively and directly remind the operator and / or the guardian than light, vibration and other alarm modes, and plays a better protection role.

[0051] In the description of the present application, it should be understood that the orientation words "in" and "out" refer to the inside and outside of the contour of each component itself.

[0052] For the convenience of description, spatial relative terms such as "above", "upper", "on", "upper surface", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0053] In addition, it should be noted that the use of "first", "second", etc. to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A seat belt automatic warning system characterized by comprising: The first signaling module, the first receiving module and the first safety belt, the first signaling module includes a first signaling power supply, a first signaling device, a first limit switch and a first signaling circuit, the first receiving module includes a first receiving power supply, a first receiving device, an alarm device and a first receiving circuit, wherein: The first signaling power supply is used to supply power to the first signaling device through the first signaling circuit and the first limit switch, the first signaling module is arranged on the first safety belt, the lever of the first limit switch is arranged towards the inner side of the buckle ring of the first safety belt, and the first limit switch is normally closed; The first receiving power supply is used to supply power to the first receiving device and the alarm device through the first receiving circuit, and the first signaling device is used to send a first danger signal to the first receiving device; When the first receiving device receives the first danger signal, the first receiving device controls the alarm device to be turned on.

2. The seat belt automatic warning system according to claim 1, wherein The second safety belt and the second signaling module are further included, the second signaling module includes a second signaling power supply, a second signaling device, a second limit switch and a second signaling circuit, the second signaling power supply is used to supply power to the second signaling device through the second signaling circuit and the second limit switch, the second signaling module is arranged on the second safety belt, the lever of the second limit switch is arranged towards the inner side of the buckle ring of the second safety belt, and the second limit switch is normally closed; The first receiving device includes a receiving device body and an AND element, the receiving device body is connected with the alarm device through the AND element, and the second signaling device is used to send a second danger signal to the receiving device body; When the receiving device body receives the first danger signal and the second danger signal, the receiving device body controls the alarm device to be turned on through the AND element.

3. The seat belt automatic warning system according to claim 2, wherein The third signaling module is further included, the third signaling module includes a third signaling power supply, a third signaling device, a third limit switch and a third signaling circuit, the third signaling power supply is used to supply power to the third signaling device through the third signaling circuit and the third limit switch, the third signaling module is arranged on the anti-falling differential, the lever of the third limit switch is arranged towards the inner side of the buckle ring of the anti-falling differential, and the third limit switch is normally closed; The third signaling device is used to send a third danger signal to the receiving device body; When the receiving device body receives the first danger signal, the second danger signal and the third danger signal, the receiving device body controls the alarm device to be turned on through the AND element.

4. The seat belt automatic warning system according to claim 3, wherein The first signaling module further includes a first signaling switch arranged on the first signaling circuit, the second signaling module further includes a second signaling switch arranged on the second signaling circuit, and the third signaling module further includes a third signaling switch arranged on the third signaling circuit.

5. The seat belt automatic warning system according to claim 1, wherein The first receiving module further includes a first receiving switch arranged on the first receiving circuit.

6. The seat belt automatic warning system according to claim 3, wherein The first safety belt is sleeved with a first protective sleeve, and the first signaling module is installed on the first protective sleeve; the second safety belt is sleeved with a second protective sleeve, and the second signaling module is installed on the second protective sleeve; the anti-falling differential is sleeved with a third protective sleeve, and the third signaling module is installed on the third protective sleeve.

7. The seat belt automatic warning system according to claim 3, wherein A first roller is rotationally connected to the lever of the first limit switch; a second roller is rotationally connected to the lever of the second limit switch; and a third roller is rotationally connected to the lever of the third limit switch.

8. The seat belt automatic warning system according to claim 3, wherein The first signaling power supply, the second signaling power supply and the third signaling power supply are all button batteries.

9. The seat belt automatic warning system according to claim 1, wherein The first receiving power supply is a rechargeable battery.

10. The seat belt automatic warning system according to claim 1, wherein The alarm device is a buzzer or a human voice alarm.

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