Security monitoring system based on weak current engineering

Abstract

The invention relates to a security and protection monitoring system based on weak current engineering, which is applied to the field of security and protection monitoring, and comprises a system body, the system body comprises a sensing layer, a data transmission layer, a management layer and a self-sensing layer, the sensing layer comprises a monitoring module, the monitoring module comprises a monitoring unit and a sensor monitoring unit, the monitoring unit comprises a monitoring probe, and the monitoring probe is connected with the sensor monitoring unit. According to the system, the self-sensing layer is additionally arranged on the basis of an existing monitoring system, self-cleaning of the probe body is achieved by means of centrifugal force, monitoring work does not need to be paused, the definition of a monitoring picture can be effectively kept under the severe environment condition, and the monitoring effect is good. The ultrasonic detector is used for monitoring stubborn dirt adhered to the probe body, the cleaning liquid is automatically released by adjusting the probe body to be in a horizontal state, and the dirt is scraped by using the rotation effect of the transparent protection sheet, so that the cleaning effect is effectively improved, and the cleaning effect on the dirt with strong adhesion is better.

Description

Technical Field

[0001] The present invention relates to a security monitoring system based on a weak current project, in particular to a security monitoring system based on a weak current project applied to the field of security monitoring. Background Art

[0002] The security monitoring system transmits video signals within its closed loop using optical fibers, coaxial cables or microwaves, and forms an independent and complete system from camera shooting to image display and recording. It can reflect the monitored object in real time, vividly and truly, and can replace manual long-term monitoring in harsh environments and record through a video recorder. The cameras in existing security monitoring are easily covered by dirt, affecting their normal use.

[0003] To solve the problem of the camera being blocked by dirt, a certain camera in the market adopts a self-cleaning design and has a certain market share.

[0004] The specification of Chinese Patent CN118741283A discloses a smart security monitoring system. Through the cooperation of an external injection device and an internal rotation mechanism, the system realizes the automatic injection, storage and rotary cleaning process of the cleaning liquid without manual intervention, greatly improving the cleaning efficiency and automation level. The specially designed monitoring device is installed at a 90-degree tilt to ensure that the cleaning liquid maintains an appropriate level in the internal liquid storage tank, ensuring both sufficient supply of cleaning liquid and avoiding excessive waste, achieving precise control. The rotary motor drives the transparent cover to rotate 360 degrees through a gear transmission system, realizing the all-round and dead-angle-free cleaning of the outer surface of the transparent cover, ensuring the comprehensiveness and thoroughness of the cleaning. The design of the cleaning mechanism makes the maintenance work such as replacing the sponge pad simple and fast, reducing the maintenance cost and time cost.

[0005] The specification of Chinese Patent CN118301442A discloses a security monitoring camera. By setting a water collection tank, a filtering component and a scraping component, the water flowing from the storage cavity to the purified water cavity is filtered by the filtering component, and the water in the purified water cavity then flows to the sponge through the water outlet. The sponge slides along the outer surface of the protective cover under the driving action of the scraping part, thereby realizing the cleaning of the outer surface of the protective cover, avoiding the accumulation of water stains, water marks or adhesive substances on the protective cover, which causes the camera body to be unable to effectively obtain image information, and ensuring the information accuracy of the security monitoring camera.

[0006] Although existing cameras all come with self-cleaning functions, their cleaning structures are too complex and the maintenance costs are too high. The existing cleaning structures have a good effect on cleaning dust, but they are difficult to work on dirt adhered to them, such as bird droppings, ice formation in winter, and other attachments. Simple wiping obviously cannot achieve a good cleaning effect. Moreover, in harsh environments, such as heavy snow, heavy rain, sand and dust weather, rain, snow, and sand and dust will cover the camera, resulting in blurred images and affecting normal monitoring work. Summary of the Invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to improve the self-cleaning effect of the monitoring probe against dirt with strong adhesion and in harsh weather.

[0008] To solve the above problems, the present invention provides a security monitoring system based on a weak current project, including a system body. The system body includes a perception layer, a data transmission layer, a management layer, and a self-perception layer. The perception layer includes a monitoring module, and the monitoring module includes a monitoring unit and a sensor monitoring unit. The monitoring unit includes a monitoring probe, and the sensor monitoring unit includes sound and light sensors and gas sensors. The data transmission layer includes a data receiving module, a data processing module, a data storage module, and a wireless transmission module. The management layer includes a background management module, a remote video call module, a warning module, and an emergency disposal coordination module. The self-perception layer is embedded in the monitoring probe, and the self-perception layer includes a foreign object detection module and a self-cleaning module. The self-cleaning module includes a daily cleaning unit and a deep cleaning unit; Among them, the monitoring probe includes a pod, a probe base is installed at the lower end of the pod, and a probe body is rotatably connected to the probe base. The probe body includes a plurality of monitoring lenses, and an ultrasonic detector electrically connected to the foreign object detection module is installed below the monitoring lenses.

[0009] In the above security monitoring system based on a weak current project, a transparent protective sheet is used to protect the monitoring lens. By rotating the transparent protective sheet, the centrifugal force is used to remove the dirt on the transparent protective sheet, improving the ability of the monitoring probe to cope with harsh weather, and using the rotation of the transparent protective sheet to scrape it with a scraping strip, effectively cleaning the dirt with strong adhesion.

[0010] As a further improvement of the present application, an annular rotating cavity is provided on the inner wall of the probe body near one end of the monitoring lens, and a rotating frame is rotatably connected in the annular rotating cavity, the rotating frame extends to the outside of the annular rotating cavity, and a transparent protective sheet is fixedly connected to the outer port of the rotating frame, a plurality of driving motors equidistantly distributed are installed inside the annular rotating cavity, and the output end of each driving motor is fixedly connected to a driving wheel frictionally connected to the rotating frame, the daily cleaning unit and the deep cleaning unit are electrically connected to the driving motor through a control processor, and when the probe body is working daily, such as working in a scene with a large amount of dust, the daily cleaning unit will start the driving motor at a fixed time, and the driving motor drives the driving wheel to rotate, and the driving wheel drives the rotating frame and the transparent protective sheet to rotate by friction, and most of the dust attached to the transparent protective sheet will be thrown off under centrifugal force, so that self-cleaning can be achieved without affecting the work of the probe body, and in addition, in heavy rain, heavy snow, and dusty weather, the transparent protective sheet is kept rotating, so that the probe body will not let rain, snow, and dust cover the monitoring screen while monitoring normally, thus eliminating the trouble of subsequent cleaning.

[0011] As a further improvement of the present application, a liquid storage chamber is provided on the inner wall of the pod, and cleaning liquid is stored in the liquid storage chamber, a yield opening is provided on the probe seat directly below the pod, and the diameter of the yield opening is larger than the diameter of the rotating frame, and two symmetrically distributed sliding chambers are provided on the inner wall of the lower end of the pod, and a sliding bar is slidably connected in the sliding chamber, a scraper bar is fixedly connected to the lower end of the sliding bar, and a spring belt is fixedly connected between the upper end of the sliding bar and the upper inner wall of the sliding chamber, and a plurality of liquid through holes connected to the liquid storage chamber are also provided on the inner wall of the lower end of the pod located between the two scraper bars, and a liquid injection head is connected to the lower end of each liquid through hole, and a sliding ring magnetically attracted to the sliding bar is slidably connected to the inner wall of the liquid through hole, and a liquid blocking ball is fixedly connected to the upper side wall of the sliding ring through a bracket, and the liquid blocking ball is located at the connection between the liquid through hole and the liquid storage chamber. When there is bird droppings or ice on the transparent protective sheet, it will be detected by the ultrasonic detector. The ultrasonic detector triggers the deep cleaning unit, which first rotates the probe body to a horizontal state. During the process of rotating the probe body to a horizontal state, since the rotation center of the probe body is biased downward, when the transparent protective sheet rotates from a vertical state to a horizontal state, the transparent protective sheet will be against the scraper bar, and the scraper bar will be lifted. Then the sliding bar will drive the liquid blocking ball to move upward through the magnetic force, so that the cleaning liquid in the liquid storage chamber will flow along the injection head to the upper surface of the transparent protective sheet. At this time, the driving motor is started to rotate the transparent protective sheet, and the scraper bar will scrape off the dirt attached to the transparent protective sheet during its rotation, and cooperate with the cleaning liquid to achieve deep cleaning. When the transparent protective sheet returns to a vertical state, the scraper bar naturally falls under the action of gravity. At this time, the liquid blocking ball will block the cleaning liquid, thereby achieving automatic release and closing of the automatic cleaning liquid without consuming energy.

[0012] As a further improvement of the present application, a magnetic conductive strip is fixedly inlaid on the inner wall of the pod between the sliding cavity and the liquid through hole, and the two side walls of the magnetic conductive strip are respectively in contact with the sliding strip and the sliding ring. Since the liquid blocking ball is subject to a certain hydraulic pressure, in order to enable the sliding strip to magnetically attract the sliding ring to move together, the magnetic conductive effect of the magnetic conductive strip is utilized to effectively enhance the magnetic attraction between the sliding strip and the sliding ring.

[0013] As another improvement of the present application, the scraping strip includes an elastic cleaning strip at the lower end and a buffer strip at the upper end. A cavity is formed in the inner wall of the buffer strip, and the cavity is filled with an electrorheological fluid. The elastic cleaning strip is used to wipe the transparent protection sheet to prevent scratching the upper surface of the transparent protection sheet and affecting the quality of the monitoring picture. The buffer strip plays an elastic buffering role to effectively prevent the scraping strip from pressing down on the transparent protection sheet excessively and causing it to break. When the scraping strip cleans the transparent protection sheet, an electric current is applied to the electrorheological fluid, and the electrorheological fluid hardens after being electrified, which can maintain the shape of the scraping strip, and then can effectively scrape off the dirt adhered to the transparent protection sheet.

[0014] As yet another improvement of the present application, the length of the scraping strip is greater than the diameter of the transparent protection sheet, and the distance between the lowermost end of the scraping strip and the lower surface of the pod is greater than the distance between the upper surface of the transparent protection sheet and the lower surface of the pod. This is to enable the transparent protection sheet to push up the scraping strip after it rotates to a horizontal state, thereby releasing the cleaning liquid.

[0015] In summary, by adding a self-perception layer on the basis of the existing monitoring system, the self-cleaning of the probe body is realized by relying on centrifugal force, and it is not necessary to pause the monitoring work. Under harsh environmental conditions, the clarity of the monitoring picture can be effectively maintained. An ultrasonic detector is also used to monitor the stubborn dirt adhered to the probe body, and the cleaning liquid is automatically released by adjusting the probe body to a horizontal state. The dirt is scraped off by the rotation of the transparent protection sheet, thereby effectively improving the cleaning effect and having a good cleaning effect on dirt with strong adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the module schematic diagram of the first embodiment of the present application; Figure 2 It is the three-dimensional view of the monitoring probe of the first embodiment of the present application; Figure 3 It is the three-dimensional view of the monitoring probe of the first embodiment of the present application during in-depth cleaning; Figure 4 It is the installation position diagram of the ultrasonic detector of the first embodiment of the present application; Figure 5 It is the front sectional view of the probe body of the first embodiment of the present application; Figure 6 It is the bottom-up three-dimensional view of the pod of the second embodiment of the present application; Figure 7 The front view sectional view of the pod for the second embodiment of the present application; Figure 8 The front view sectional view of the scraping strip for the second embodiment of the present application.

[0017] Description of the reference numerals in the figure: 1 pod, 101 liquid storage cavity, 102 sliding cavity, 2 probe base, 3 probe body, 301 annular rotating cavity, 4 monitoring lens, 5 ultrasonic detector, 6 rotating frame, 7 transparent protection sheet, 8 driving motor, 9 driving wheel, 10 sliding bar, 11 scraping strip, 1101 elastic cleaning strip, 1102 buffer strip, 1103 electrorheological fluid, 12 spring belt, 13 liquid injection head, 14 sliding ring, 15 liquid blocking ball, 16 magnetic conduction strip. Specific embodiments

[0018] The following will describe in detail the two embodiments of the present application with reference to the accompanying drawings.

[0019] The first embodiment: Figure 1 As shown, it includes a system body, the system body includes a perception layer, a data transmission layer, a management layer and a self-perception layer. The perception layer includes a monitoring module, and the monitoring module includes a monitoring unit and a sensor monitoring unit. The monitoring unit includes a monitoring probe, and the sensor monitoring unit includes sound, light sensors and gas sensors. The data transmission layer includes a data receiving module, a data processing module, a data storage module and a wireless transmission module. The management layer includes a background management module, a remote video call module, an early warning module and an emergency response coordination module. The self-perception layer is embedded in the monitoring probe, and the self-perception layer includes a foreign object detection module and a self-cleaning module. The self-cleaning module includes a daily cleaning unit and a deep cleaning unit; Figure 2 、 3 and Figure 4 As shown, among them, the monitoring probe includes a pod 1. A probe base 2 is installed at the lower end of the pod 1, and a probe body 3 is rotatably connected to the probe base 2 (the rotation control of the probe body 3 is the technology of the existing monitoring probe, and the specific structure and working principle are well-known technologies to those skilled in the relevant field and will not be described in detail here). The probe body 3 includes a plurality of monitoring lenses 4, and an ultrasonic detector 5 (the specific model is selected according to the actual situation) electrically connected to the foreign object detection module is installed below the monitoring lens 4; Figure 5It is shown that an annular rotating cavity 301 is formed in the inner wall of one end of the probe body 3 close to the monitoring lens 4, and a rotating frame 6 is rotatably connected in the annular rotating cavity 301. The rotating frame 6 penetrates to the outside of the annular rotating cavity 301, and a transparent protective sheet 7 is fixedly connected to the outer port of the rotating frame 6. A plurality of driving motors 8 (specific models are selected according to actual situations) are installed in the annular rotating cavity 301 and are evenly distributed in a circumferential manner. The output end of each driving motor 8 is fixedly connected with a driving wheel 9 that is frictionally connected to the rotating frame 6. Both the daily cleaning unit and the in-depth cleaning unit are electrically connected to the driving motor 8 through a control processor (the specific connection structure and control principle are well-known technologies for those skilled in the relevant fields and will not be described in detail here). When the probe body 3 is working normally, such as in a scene with a large amount of dust, the daily cleaning unit will regularly start the driving motor 8. The driving motor 8 drives the driving wheel 9 to rotate, and the driving wheel 9 drives the rotating frame 6 and the transparent protective sheet 7 to rotate by relying on friction. Under the action of centrifugal force, most of the dust attached to the transparent protective sheet 7 will be thrown off, so that self-cleaning can be achieved without affecting the normal operation of the probe body 3. In addition, in rainy, snowy, and sandy weather, the transparent protective sheet 7 is kept rotating all the time, so that while the probe body 3 is monitoring normally, the monitoring screen will not be covered by rain, snow, and dust, saving the trouble of subsequent cleaning.

[0020] The second implementation method: Figure 6 , 8 It is shown that a liquid storage cavity 101 is formed in the inner wall of the pod 1, and a cleaning liquid is stored in the liquid storage cavity 101. A relief opening is formed in the probe base 2 directly below the pod 1, and the diameter of the relief opening is larger than the diameter of the rotating frame 6. Two symmetrically distributed sliding cavities 102 are formed in the lower inner wall of the pod 1, and a sliding strip 10 is slidably connected in the sliding cavities 102. The lower end of the sliding strip 10 is fixedly connected with a scraping strip 11. The scraping strip 11 includes an elastic cleaning strip 1101 at the lower end and a buffer strip 1102 at the upper end. A cavity is formed in the inner wall of the buffer strip 1102, and an electrorheological fluid 1103 is filled in the cavity. The elastic cleaning strip 1101 is used to wipe the transparent protective sheet 7 to prevent the upper surface of the transparent protective sheet 7 from being scratched and affecting the quality of the monitoring screen. The buffer strip 1102 plays an elastic buffering role to effectively prevent the scraping strip 11 from pressing down on the transparent protective sheet 7 excessively and causing it to break. When the scraping strip 11 cleans the transparent protective sheet 7, the electrorheological fluid 1103 is energized. After the electrorheological fluid 1103 is energized, it hardens and can maintain the shape of the scraping strip 11, and then the dirt adhered to the transparent protective sheet 7 can be effectively scraped off. The length of the scraping strip 11 is larger than the diameter of the transparent protective sheet 7, and the distance between the lowermost end of the scraping strip 11 and the lower surface of the pod 1 is larger than the distance between the upper surface of the transparent protective sheet 7 and the lower surface of the pod 1. This is to enable the transparent protective sheet 7 to push up the scraping strip 11 after rotating to a horizontal state, thereby releasing the cleaning liquid. Figure 7 As shown, a spring band 12 is fixedly connected between the upper end of the sliding bar 10 and the inner wall of the upper end of the sliding cavity 102. A plurality of liquid injection holes communicating with the liquid storage cavity 101 are further formed in the lower inner wall of the pod 1 between the two scraping bars 11, and a liquid injection head 13 is communicated with the lower end of each liquid injection hole. A sliding ring 14 magnetically attracted to the sliding bar 10 is slidably connected to the inner wall of the liquid injection hole. A liquid blocking ball 15 is fixedly connected to the upper side wall of the sliding ring 14 through a bracket, and the liquid blocking ball 15 is located at the communication position between the liquid injection hole and the liquid storage cavity 101; Figure 3 、 5 As shown in FIGS. 6 and 7, when there is bird droppings or icing on the transparent protection sheet 7, it will be detected by the ultrasonic detector 5. The ultrasonic detector 5 triggers the deep cleaning unit. The deep cleaning unit first rotates the probe body 3 to the horizontal state. During the process of rotating the probe body 3 to the horizontal state, since the rotation center of the probe body 3 is lower, when the transparent protection sheet 7 rotates from the vertical state to the horizontal state, the transparent protection sheet 7 will abut against the scraping bar 11, and the scraping bar 11 will be lifted. Furthermore, the sliding bar 10 drives the liquid blocking ball 15 to move upward together by magnetic attraction. In this way, the cleaning liquid in the liquid storage cavity 101 will flow onto the upper surface of the transparent protection sheet 7 along the liquid injection head 13. At this time, the driving motor 8 is started to rotate the transparent protection sheet 7. The scraping bar 11 scrapes off the dirt attached to it during the rotation of the transparent protection sheet 7, and realizes deep cleaning in cooperation with the action of the cleaning liquid. When the transparent protection sheet 7 rotates back to the vertical state, the scraping bar 11 naturally falls under the action of gravity. At this time, the liquid blocking ball 15 blocks the cleaning liquid, so as to realize the automatic release and closing of the automatic cleaning liquid without energy consumption; Figure 7 As shown, a magnetic conduction strip 16 is fixedly embedded in the inner wall of the pod 1 between the sliding cavity 102 and the liquid injection hole, and the two side walls of the magnetic conduction strip 16 are respectively in contact with the sliding bar 10 and the sliding ring 14. Since the liquid blocking ball 15 will be affected by a certain hydraulic pressure, in order to enable the sliding bar 10 to magnetically attract the sliding ring 14 to move together, the magnetic conduction effect of the magnetic conduction strip 16 is used to effectively enhance the magnetic attraction between the sliding bar 10 and the sliding ring 14.

[0021] Combined with the current actual requirements, the above-mentioned implementation manner adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A security monitoring system based on weak current engineering, characterized by: The system comprises a system body, wherein the system body comprises a perception layer, a data transmission layer, a management layer and a self-perception layer, wherein the perception layer comprises a monitoring module, and the monitoring module comprises a monitoring unit and a sensor monitoring unit, wherein the monitoring unit comprises a monitoring probe, and the sensor monitoring unit comprises an acoustic sensor, a light sensor and a gas sensor, wherein the data transmission layer comprises a data receiving module, a data processing module, a data storage module and a wireless transmission module, wherein the management layer comprises a background management module, a remote video call module, an early warning module and an emergency disposal coordination module, wherein the self-perception layer is embedded in the monitoring probe, and the self-perception layer comprises a foreign body detection module and a self-cleaning module, wherein the self-cleaning module comprises a daily cleaning unit and a deep cleaning unit; The monitoring probe comprises a pod (1), a probe base (2) is mounted at the lower end of the pod (1), a probe body (3) is rotatably connected to the probe base (2), the probe body (3) comprises a plurality of monitoring lenses (4), and an ultrasonic detector (5) electrically connected to a foreign object detection module is mounted below the monitoring lenses (4).

2. According to claim 1, a security monitoring system based on weak current engineering is characterized in that: An annular rotating cavity (301) is provided on the inner wall of the probe body (3) at one end close to the monitoring lens (4), and a rotating frame (6) is rotatably connected in the annular rotating cavity (301), the rotating frame (6) extends to the outside of the annular rotating cavity (301), and a transparent protective sheet (7) is fixedly connected to the outer port of the rotating frame (6), a plurality of driving motors (8) are installed in the annular rotating cavity (301) and are distributed around at equal intervals, and the output end of each driving motor (8) is fixedly connected to a driving wheel (9) frictionally connected to the rotating frame (6), and the daily cleaning unit and the deep cleaning unit are both electrically connected to the driving motor (8) via a control processor.

3. The security monitoring system based on weak current engineering according to claim 1 is characterized in that: The pod (1) has an inner wall provided with a liquid storage cavity (101), and a cleaning liquid is stored in the liquid storage cavity (101); the probe seat (2) is located directly below the pod (1) and has a clearance opening, and the diameter of the clearance opening is greater than the diameter of the rotating frame (6); the lower inner wall of the pod (1) has two symmetrically distributed sliding cavities (102), and a sliding bar (10) is slidably connected to the sliding cavity (102); the lower end of the sliding bar (10) is fixedly connected to a scraper bar (11), and the upper end of the sliding bar (10) is in contact with the sliding cavity (102); ), a spring belt (12) is fixedly connected between the upper inner walls of the two scraper strips (11), a plurality of liquid holes connected to the liquid storage chamber (101) are formed on the lower inner wall of the pod (1) located between the two scraper strips (11), and a liquid injection head (13) is connected to the lower end of each liquid hole, a sliding ring (14) magnetically attracted to the sliding strip (10) is slidably connected to the inner wall of the liquid hole, a liquid blocking ball (15) is fixedly connected to the upper side wall of the sliding ring (14) via a bracket, and the liquid blocking ball (15) is located at the connection between the liquid hole and the liquid storage chamber (101).

4. The security monitoring system based on weak current engineering according to claim 3 is characterized in that: The inner wall of the pod (1) between the sliding cavity (102) and the liquid passage hole is also fixedly inlaid with a magnetic strip (16), and the side walls of the magnetic strip (16) are in contact with the sliding strip (10) and the sliding ring (14) respectively.

5. The security monitoring system based on weak current engineering according to claim 3 is characterized in that: The scraper strip (11) comprises an elastic cleaning strip (1101) at the lower end and a buffer strip (1102) at the upper end; the inner wall of the buffer strip (1102) is provided with a cavity, and the cavity is filled with an electrorheological fluid (1103).

6. The security monitoring system based on weak current engineering according to claim 3 is characterized by: The length of the scraper strip (11) is greater than the diameter of the transparent protective sheet (7), and the distance between the lower end of the scraper strip (11) and the lower surface of the pod (1) is greater than the distance between the upper surface of the transparent protective sheet (7) and the lower surface of the pod (1).

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