Barrier gate monitoring device
By combining radar and image acquisition technology in the gate monitoring device, we can detect whether there are pedestrians on the road surface and control the railing to rise, which solves the problem of downward railings hitting people and improves safety.
Patent Information
- Application Number
- CN202420571819.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-24
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-24
AI Technical Summary
The railings of the gates are prone to hit pedestrians when they descend, which poses safety risks, especially when pedestrian passages are closed or there are very few pedestrians.
A gate monitoring device is designed, including radar components, image acquisition components and control modules. The radar components calculate the position and distance of objects, the image acquisition components detect the pavement screen, and the control module controls the railing to rise and avoid falling, ensuring safety.
It effectively avoids the situation where the gate railing hits pedestrians when it descends, and improves safety, especially in extreme environments such as few pedestrians or false alarms.
Smart Images
Figure CN222145217U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety monitoring, in particular to a gate monitoring device. Background Art
[0002] A barrier gate, also known as a vehicle blocker, is a management device specifically used to control the entry and exit of vehicles.
[0003] In some related technologies, there are very few pedestrians in some scenarios where there is no pedestrian passage or the pedestrian passage is closed. When the following vehicle passes through the barrier, the speed of the person is slower than that of the vehicle or some pedestrians are not careful when walking, which causes the barrier railing to easily hit the human body when it descends, thus posing some safety hazards. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art solutions, an embodiment of the utility model provides a gate monitoring device.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A barrier monitoring device, wherein a railing is swingably provided on the barrier, and the barrier monitoring device is arranged on the barrier or on the side of the barrier; the barrier monitoring device comprises:
[0007] A base body, wherein the base body has a circuit board built therein;
[0008] A radar assembly, the radar assembly is arranged on the base, and comprises a transmitter, a receiver and an electromagnetic wave processing module, all of which are electrically connected to the circuit board, the radio frequency direction of the transmitter is toward the road surface, the receiver is used to receive electromagnetic waves, and the electromagnetic wave processing module is used to process reflected electromagnetic waves;
[0009] An image acquisition component, the image acquisition component is arranged on the base, and includes a movable camera and a picture processing module built in the camera, the picture processing module is arranged on the circuit board and is connected to the camera for signal transmission, the camera is used to collect pictures of the road surface, and the picture processing module is used to detect whether there are passers-by in the road surface picture;
[0010] A control module is disposed on the circuit board and is connected to the barrier control of the barrier.
[0011] As a preferred technical solution of the utility model, the camera includes a shell and a camera body; the camera body is fixedly arranged in the shell, and the shell is movably arranged on the base.
[0012] As a preferred technical solution of the utility model, a receiving cavity with an opening is formed on the seat body for accommodating the camera, and a protective block is arranged at the opening of the seat body.
[0013] As a preferred technical solution of the utility model, a mounting frame is arranged in the accommodating cavity, and the shell is movably arranged on the mounting frame through a connecting shaft.
[0014] As a preferred technical solution of the utility model, a driving assembly is arranged in the accommodating cavity, and the output shaft of the driving assembly is drivingly connected to the connecting shaft for adjusting the shooting direction of the camera subject.
[0015] As a preferred technical solution of the utility model, the transmitter includes a high-frequency generator, a driving amplifier and multiple output antennas; the high-frequency generator is connected to the driving amplifier for signal transmission, and the driving amplifier is connected to each of the output antennas for signal transmission, so as to radiate the high-frequency signal to the road surface.
[0016] As a preferred technical solution of the utility model, the receiver includes a noise amplifier, a mixer, a demodulator and multiple receiving antennas; each of the receiving antennas is connected to the noise amplifier for signal transmission, the noise amplifier is connected to the mixer for signal transmission, and the demodulator is used to demodulate the signal into a baseband signal.
[0017] As a preferred technical solution of the present utility model, the barrier gate monitoring device also includes a wireless transmission module, and the wireless transmission module is arranged on the circuit board and is wirelessly connected to the monitoring terminal.
[0018] As a preferred technical solution of the utility model, an alarm is arranged on the circuit board, and the control module is control-connected to the alarm.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] The radar component transmits and receives electromagnetic waves to the road surface to calculate the position and distance of objects, thereby confirming cars and pedestrians. At the same time, the camera captures the road surface image, and the image processing module detects whether there are pedestrians in the road surface image. When it is confirmed that a pedestrian is approaching the barrier of the gate, the control module controls the barrier to remain stationary after rising, so as to prevent the barrier from hitting the pedestrian when it descends. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is an overall structural diagram of an embodiment of the utility model.
[0023] Figure 2 It is a schematic diagram of an embodiment of the utility model when in use.
[0024] Figure 3 It is a cross-sectional structural diagram of the image acquisition component of the embodiment of the utility model.
[0025] Numbers in the figure
[0026] 1. Base body;
[0027] 2. Radar component; 21. Transmitter; 22. Receiver; 23. Electromagnetic wave processing module;
[0028] 3. Image acquisition component; 31. Camera; 32. Accommodation cavity; 33. Mounting frame; 34. Connecting shaft;
[0029] 4. Control module. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0032] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element.
[0033] When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.
[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0036] In the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.
[0037] In order to solve the technical problem that the railing of the barrier is easy to hit the human body when descending in the prior art, thus there are some potential safety hazards; for this purpose, the utility model provides a barrier monitoring device.
[0038] The following is a detailed description of an embodiment of the utility model, which provides a barrier monitoring device. A railing is swingably provided on the barrier, and the barrier monitoring device is provided on the barrier or beside the barrier to monitor the condition of pedestrians walking on the road. Specifically, according to the attached Figure 1-3 As shown in the figure, the specific structure of the barrier gate monitoring device includes a base body 1, a radar component 2, an image acquisition component 3 and a control module 4.
[0039] The base 1 has a built-in circuit board; specifically, the circuit board is provided with a plurality of control units for controlling various functions of the camera radar component 2 and the image acquisition component 3. For example, the control unit includes a microcontroller (MCU), a digital signal processor (DSP), and the like.
[0040] Taking the image acquisition component 3 as an example, the image acquired by the image acquisition component 3 is then adjusted through various control units to adjust the focus, aperture, white balance, exposure and other effects, thereby making various adjustments and optimizations to the image as needed.
[0041] According to the attached Figure 1-2 As shown, the radar component 2 is arranged on the base 1, which includes a transmitter 21, a receiver 22 and an electromagnetic wave processing module 23, which are all electrically connected to the circuit board. The radio frequency direction of the transmitter 21 is toward the road surface, the receiver 22 is used to receive electromagnetic waves, and the electromagnetic wave processing module 23 is used to process the reflected electromagnetic waves.
[0042] Specifically, a beam of high-frequency electromagnetic waves, such as a microwave or millimeter wave antenna, is emitted through the transmitter 21 to transmit to the target area; then, when the emitted electromagnetic waves hit a car or a human body, since the material and shape of the surface of the car or the human body will affect the reflection characteristics of the electromagnetic waves, at least a portion of the electromagnetic waves will be reflected back by the car or the human body, and the receiver 22 is responsible for receiving this portion of the electromagnetic waves. Subsequently, the electromagnetic wave processing module 23 uses a specific algorithm to calculate the position and distance of the object based on the echo time delay and intensity of the reflected electromagnetic wave, as well as some other parameters (such as the size and shape of the car or the human body), thereby confirming the car and the passerby.
[0043] For example, when the barrier of the gate rises and the car leaves the exit of the parking lot, high-frequency electromagnetic waves are emitted toward the road surface at the exit of the parking lot through the transmitter 21. If some passers-by are hit by the emitted electromagnetic waves within the range of the road surface, the reflection characteristics of the electromagnetic waves are affected and are reflected back. Specifically, when a car or a human body receives electromagnetic waves from the radar system, the reflection intensity and scattering pattern of the electromagnetic waves by the human body are analyzed, and the approximate shape of the target object is inferred based on the time delay of receiving the return signal. Therefore, after the receiver 22 receives the electromagnetic wave, it can be confirmed that there is a passer-by approaching the barrier of the gate, and then the barrier of the gate can be controlled to remain motionless after rising.
[0044] To further improve safety and prevent false alarms in extreme environments, such as when the reflection area of the car becomes smaller, or when people are taller or thinner, causing the barrier to hit the car or pedestrians; Figure 1 As shown, by setting the image acquisition component 3 on the base 1, specifically, it includes a movable camera 31 and a picture processing module built into the camera 31, the picture processing module is set on the circuit board and is controlled and connected to the camera 31, the camera 31 is used to collect the picture of the road surface, and the picture processing module is used to detect whether there are passers-by in the road surface picture.
[0045] Specifically, the shooting direction of the camera 31 is toward the road surface, and is used to detect pedestrians and cars on the road surface. Subsequently, the collected road surface images are processed by the image processing module. Specifically, since the image processing module collects a large amount of image data sets (such as those containing car and human body features) to mark the cars and pedestrians in the image, and then uses the marked data sets to train a deep learning model, such as a convolutional neural network. The learning model will gradually improve the recognition ability of cars and pedestrians by repeatedly extracting features from the input image, classifying and predicting. Therefore, if the position of the pedestrian approaching the railing of the gate is confirmed based on the road surface image, the railing is controlled to keep rising; in this way, it can prevent the railing of the gate from hitting the pedestrian when it descends.
[0046] It should be noted that the image processing module can also use target tracking algorithms, such as Kalman filters, particle filters or multi-target tracking, to track the position and motion trajectory of specific pedestrians or vehicles in the camera 31, so as to better distinguish the behavior patterns of individuals or vehicles and provide more accurate distinction results.
[0047] It can be understood that the picture processing module of the embodiment of the present utility model is a single chip microcomputer (MCU).
[0048] In summary, the type of algorithm used by the image processing module is not limited here.
[0049] It should also be noted that the image processing module can also adjust the brightness, contrast, etc. of the road image to make the image clearer and more vivid, so as to extract representative features from the image for subsequent intelligent analysis and recognition.
[0050] For example, the histogram equalization or contrast enhancement algorithm is used to improve the quality of the collected road surface image and enhance the visualization effect of the road surface image in various environments.
[0051] The control module 4 is arranged on the circuit board and is connected to the control of the railing of the gate. Specifically, the control module 4 is a component for controlling the railing of the gate to perform an ascending or descending action, so when receiving an instruction, the control railing performs an ascending or descending action.
[0052] For example, when a passerby approaches the railing of a gate, the motor converts its speed and torque into the lifting and lowering movement of the railing through a gear transmission system. The transmission system is usually composed of gears, transmission chains, etc., which can provide sufficient torque and stable movement.
[0053] It can be understood that the control module of the embodiment of the utility model is an embedded single chip microcomputer or a microcontroller (Microcontroller Unit), which is not limited here.
[0054] In summary, the radar component 2 transmits and receives electromagnetic waves to the road surface to calculate the position and distance of objects, thereby confirming cars and passers-by. At the same time, the camera 31 collects the picture of the road surface, and the picture processing module detects whether there are passers-by in the road surface picture. When it is confirmed that the passer-by is approaching the railing of the gate, the control module 4 controls the railing of the gate to remain stationary after rising, so as to prevent the railing from hitting the passer-by when it descends.
[0055] In order to improve the protection of the camera subject and improve the flexibility of the camera subject, in some specific embodiments, the camera 31 includes a housing and a camera subject; the camera subject is fixedly arranged in the housing, and the housing is movably arranged in the base 1. Specifically, by assembling the camera subject in the housing, and assembling the housing in the base 1, the camera subject exposed to the outside is prevented from being easily hit by the outside or water from penetrating into the inside of the camera subject on rainy days, thereby improving the protection of the camera subject.
[0056] In addition, since the housing is movably arranged, the shooting direction of the camera subject can be changed by adjusting different swing directions of the housing. Specifically, the housing of this embodiment swings upward or downward.
[0057] According to the attached Figure 3 As shown, in a further embodiment, an opening accommodating cavity 32 is formed on the base body 1 for accommodating a camera 31 .
[0058] Specifically, the opening on the base 1 is connected to the outside, and the shooting direction of the camera 31 is achieved through the opening to obtain the road surface image; the cavity shape of the accommodating cavity 32 is adapted to the shape of the camera 31, so when the shell of the camera 31 is swinging, its outer side slides and abuts against the cavity wall of the accommodating cavity 32, so that it can guide the shell so that the shell can swing stably.
[0059] According to the attached Figure 3 As shown, further, a protective block is provided at the opening of the seat body 1 to prevent foreign objects from directly colliding with the mirror surface of the camera subject and causing damage to the camera subject. This arrangement further improves the protection of the camera subject.
[0060] It can be understood that the cavity shape of the accommodating cavity 32 is a circular cavity, and correspondingly, the shape of the shell is circular. In this way, the circular shell is slidably arranged on the circular cavity, thereby guiding the shell.
[0061] To improve the stability of the housing during swinging, Figure 3 As shown, in a further embodiment, a mounting frame 33 is disposed in the accommodating cavity 32 , and the housing is movably disposed on the mounting frame 33 via a connecting shaft 34 .
[0062] Specifically, the mounting bracket 33 is fixedly arranged on the wall of the accommodating cavity 32, and a rotating connecting shaft 34 is arranged on both sides of the shell. The end of the connecting shaft 34 away from the shell is rotatably connected to the wall of the accommodating cavity 32. In this way, when it is necessary to adjust the shooting direction of the camera subject, the connecting shaft 34 is rotated along its circumferential direction, thereby synchronously driving the shell (that is, the camera subject) to rotate along its rotation direction.
[0063] In some usage scenarios, such as underground parking lots or second-floor parking lots, the entrances and exits of such parking lots are slopes. In order to be able to flexibly adjust the shooting direction of the camera subject, the connecting shaft 34 is rotated to synchronously drive the shell to rotate, so that the camera subject can change its shooting direction according to different slopes.
[0064] In a further embodiment, a driving assembly is disposed in the accommodating cavity 32 , and an output shaft of the driving assembly is drivingly connected to the connecting shaft 34 for adjusting the shooting direction of the camera subject.
[0065] Specifically, the output shaft of the driving assembly rotates along its circumferential direction, thereby driving the connecting shaft 34 to rotate along the circumferential direction, thereby adjusting the shooting direction of the camera subject.
[0066] In addition, the driving assembly also includes a driving gear and a driven gear; wherein the driving gear is sleeved on the output shaft of the driving assembly, and the driven gear is sleeved on the connecting shaft 34, and the gear edge of the driving gear is meshed with the gear edge of the driven gear. In this arrangement, the connecting shaft 34 is driven to rotate by means of gears.
[0067] In some specific embodiments, the transmitter 21 includes a high-frequency generator, a driving amplifier and multiple output antennas; the high-frequency generator is connected to the driving amplifier for signal transmission, and the driving amplifier is connected to each output antenna for signal transmission, so as to radiate the high-frequency signal to the road surface.
[0068] Specifically, a high-frequency generator is used to generate a high-frequency pulse signal. Generally, a stable oscillation circuit is used to modulate and modulate a crystal oscillator or other high-frequency signal source to generate a pulse signal with a specific frequency and pulse width. Subsequently, the pulse signal is transmitted to a driver amplifier; the driver amplifier is used to amplify the high-frequency pulse signal to achieve sufficient power output so that the signal can be transmitted over a long distance. It can be understood that the driver amplifier usually adopts a power amplifier design to amplify the low-power signal from the high-frequency generator to the required high-power level, so that the amplified signal maintains the original frequency and pulse width characteristics. Finally, the electromagnetic wave (high-frequency signal) is emitted by multiple output antennas to achieve detection and measurement of cars and passers-by.
[0069] In some specific embodiments, the receiver 22 includes a noise amplifier, a mixer, a demodulator and multiple receiving antennas; each receiving antenna is connected to the noise amplifier for signal transmission, the noise amplifier is connected to the mixer for signal transmission, and the demodulator is used to demodulate the signal into a baseband signal.
[0070] Specifically, when part of the electromagnetic wave is reflected back, since the electromagnetic waves received by each receiving antenna are usually very weak, the noise amplifier amplifies the signal and the existing noise at the same time, and the mixer mixes the received electromagnetic wave with the local reference signal to obtain an intermediate frequency signal; specifically, the mixer uses frequency doubling or frequency division technology to multiply the high-frequency signal with the local reference signal, and filter out unnecessary frequency components to reduce noise and nonlinear distortion; at the same time, the intermediate frequency signal output by the mixer is demodulated to obtain the target echo signal. For this purpose, the demodulator uses envelope detection technology to convert the intermediate frequency signal into a baseband signal, removes the modulation information such as frequency modulation, phase modulation, and amplitude modulation, so as to confirm the car or the pedestrian; therefore, the detection and measurement of the car and the pedestrian can be achieved through the receiver 22.
[0071] In some specific embodiments, the barrier gate monitoring device further includes a wireless transmission module, which is disposed on a circuit board and is wirelessly connected to the monitoring terminal.
[0072] For example, when the receiver 22 receives part of the reflected electromagnetic waves, the confirmation result is sent to the monitoring terminal through the wireless transmission module; or for example, the confirmation result of distinguishing between pedestrians and cars by the camera 31 is sent to the monitoring terminal through the wireless transmission module.
[0073] It is understandable that the aforementioned monitoring terminal is the host responsible for the entire viewing and control of the gate. The aforementioned wireless transmission module is a Wi-Fi module, a 4G communication module or a 5G communication module, etc., which is not specifically limited.
[0074] In some specific embodiments, an alarm is provided on the circuit board, and the control module 4 is connected to the alarm control system to warn passers-by approaching the railing of the gate (the railing is raised at this time).
[0075] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A gate monitoring device, characterized in that: The barrier is swingably provided with a railing, and the barrier monitoring device is arranged on the barrier or on the side of the barrier; the barrier monitoring device comprises: A base body, wherein the base body has a circuit board built therein; A radar assembly, the radar assembly is arranged on the base, and comprises a transmitter, a receiver and an electromagnetic wave processing module, all of which are electrically connected to the circuit board, the radio frequency direction of the transmitter is toward the road surface, the receiver is used to receive electromagnetic waves, and the electromagnetic wave processing module is used to process reflected electromagnetic waves; An image acquisition component, the image acquisition component is arranged on the base, and includes a movable camera and a picture processing module built in the camera, the picture processing module is arranged on the circuit board and is connected to the camera for signal transmission, the camera is used to collect pictures of the road surface, and the picture processing module is used to detect whether there are passers-by in the road surface picture; A control module is disposed on the circuit board and is connected to the barrier control of the barrier.
2. The gate monitoring device according to claim 1, characterized in that: The camera comprises a shell and a camera body; the camera body is fixedly arranged in the shell, and the shell is movably arranged on the base.
3. The gate monitoring device according to claim 2, characterized in that: An accommodating cavity with an opening is formed on the seat body for accommodating the camera, and a protective block is arranged at the opening of the seat body.
4. The gate monitoring device according to claim 3, characterized in that: A mounting frame is arranged in the accommodating cavity, and the shell is movably arranged on the mounting frame through a connecting shaft.
5. The gate monitoring device according to claim 4, characterized in that: A driving assembly is arranged in the accommodating cavity, and an output shaft of the driving assembly is drivingly connected to the connecting shaft for adjusting the shooting direction of the camera subject.
6. The gate monitoring device according to claim 1, characterized in that: The transmitter includes a high-frequency generator, a driving amplifier and a plurality of output antennas; the high-frequency generator is connected to the driving amplifier for signal transmission, and the driving amplifier is connected to each of the output antennas for signal transmission, so as to radiate the high-frequency signal to the road surface.
7. The gate monitoring device according to claim 1, characterized in that: The receiver includes a noise amplifier, a mixer, a demodulator and multiple receiving antennas; each of the receiving antennas is connected to the noise amplifier for signal transmission, the noise amplifier is connected to the mixer for signal transmission, and the demodulator is used to demodulate the signal into a baseband signal.
8. The gate monitoring device according to claim 1, characterized in that: The barrier gate monitoring device also includes a wireless transmission module, which is arranged on the circuit board and is connected to the monitoring terminal through wireless transmission.
9. The gate monitoring device according to claim 1, characterized in that: An alarm is arranged on the circuit board, and the control module is control-connected with the alarm.