CN222259604U - A dual monitoring sensor based on radar and PIR - Google Patents
A dual monitoring sensor based on radar and PIR Download PDFInfo
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- CN222259604U CN222259604U CN202421109978.7U CN202421109978U CN222259604U CN 222259604 U CN222259604 U CN 222259604U CN 202421109978 U CN202421109978 U CN 202421109978U CN 222259604 U CN222259604 U CN 222259604U
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Abstract
The utility model discloses a dual-monitoring sensor based on radar and PIR, which comprises a radar sensor, a PIR sensor, a horizontal slewing mechanism, a shell seat, an angle adjusting mechanism, a swing arm and a bearing seat, wherein the angle adjusting mechanism is connected with the bearing seat through the swing arm, the radar sensor is arranged on the bearing seat, and the PIR sensor is arranged above the radar sensor. When the sensor is used, the PIR sensor can detect the pyroelectric signal of a human body, the radar sensor can emit a laser radar signal and receive an echo signal, so that the position and motion information of a target can be accurately acquired, and the sensor can improve the reliability of the monitoring sensor by combining the data of the radar sensor and the PIR sensor; the horizontal rotation mechanism can drive the radar sensor to rotate in the horizontal direction, so that the monitoring range of the radar sensor is improved, and the angle adjusting mechanism can drive the radar sensor and the PIR sensor to swing in the vertical direction, so that a monitoring blind area is avoided.
Description
Technical Field
The utility model relates to the field of monitoring sensors, in particular to a dual-monitoring sensor based on radar and PIR.
Background
With the continuous occurrence of social security events, security problems occur repeatedly in industrial parks, banks, large warehouses, conference venues and exhibition halls, and the demand for security is increasing. Therefore, the adoption of the monitoring sensor as a security monitoring system is an effective means, and is increasingly paid attention to.
However, the conventional monitoring sensor generally detects infrared radiation of the surrounding environment by using a PIR sensor (Passive infrareddetectors, a passive infrared detector) to sense heat release of an object so as to monitor whether a human body approaches, however, the PIR sensor is easily affected by factors such as environmental temperature change and wind blowing, and is easy to cause false alarm or missing alarm, the monitoring distance of the PIR sensor is short, a certain detection blind area is also provided, particularly, the position right in front of or right behind the PIR sensor is easy to cause that a target cannot be accurately detected in certain directions, in addition, a single PIR sensor is used for monitoring, the speed or direction of the target in a motion state cannot be obtained, and accurate identification and comprehensive monitoring of the target are difficult to realize.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of utility model
The technical problem to be solved by the utility model is to provide the dual-monitoring sensor based on the radar and the PIR, which has wide monitoring range and accurate identification.
The utility model adopts the following technical scheme that the dual-monitoring sensor based on the radar and the PIR comprises a radar sensor, a PIR sensor, a horizontal slewing mechanism, a shell seat, an angle adjusting mechanism, a swing arm and a bearing seat;
The horizontal rotation mechanism is connected with the shell seat to drive the shell seat to rotate in the horizontal direction, and an accommodating space is formed in the shell seat;
The angle adjusting mechanism is arranged in the accommodating space and is connected with the bearing seat through the swing arm, and the angle adjusting mechanism is used for adjusting the swing angle of the bearing seat;
The radar sensor is arranged on the bearing seat, and is used for transmitting laser radar signals in a detection area in the horizontal direction and receiving laser radar echo signals reflected by the area to be detected;
The PIR sensor is arranged above the radar sensor and is used for acquiring human body pyroelectric signals of surrounding environment.
By adopting the technical scheme, in the radar and PIR-based dual-monitoring sensor, the horizontal rotation mechanism comprises a first motor, a first gear, a second gear and a rotation disc;
the first motor is arranged in the shell seat, an output shaft of the first motor is downwards arranged and is meshed with the second gear through the first gear, and the first motor is used for driving the second gear to rotate in the horizontal direction;
The second gear is connected with the rotary disc through a first rotating shaft, the rotary disc is connected with the shell seat, and the shell seat is used for rotating along with the rotation of the rotary disc.
By adopting the technical schemes, in the radar and PIR-based dual-monitoring sensor, the horizontal rotation mechanism also comprises a third gear and a first rotary encoder;
the first rotary encoder is arranged on one side, far away from the first motor, of the second gear, and is meshed and connected with the second gear through the third gear, and the first rotary encoder is used for collecting the horizontal rotation angle of the shell seat.
By adopting the technical schemes, in the dual-monitoring sensor based on the radar and the PIR, the angle adjusting mechanism comprises a side plate, a second motor, a fourth gear and a fifth gear;
the side plate is arranged on the side wall of the shell seat, the second motor is arranged on the side plate, and an output shaft of the second motor is perpendicular to the side plate and is meshed with the fifth gear through the fourth gear;
The fifth gear is connected with the swing arm through a second rotating shaft, and the swing arm is used for swinging in an angle along with the rotation of the fifth gear.
By adopting the technical schemes, in the radar and PIR-based dual-monitoring sensor, the angle adjusting mechanism further comprises a sixth gear and a second rotary encoder;
The second rotary encoder is arranged on one side of the side plate, far away from the second motor, and is meshed and connected with the fourth gear through the sixth gear, and the second rotary encoder is used for collecting the vertical swing angle of the swing arm.
By adopting the technical schemes, in the dual-monitoring sensor based on the radar and the PIR, the angle adjusting mechanism further comprises a follow-up limiting block, a first arc baffle and a second arc baffle;
The follow-up limiting block is arranged at the bottom of the bearing seat, the side plate is of a circular structure, the first arc-shaped baffle plate and the second arc-shaped baffle plate are arranged at the circumferential edge of the side plate, and a gap for the follow-up limiting block to swing back and forth is arranged between the first arc-shaped baffle plate and the second arc-shaped baffle plate.
By adopting the technical schemes, in the dual-monitoring sensor based on the radar and the PIR, the radar sensor comprises a transmitting unit and a receiving unit;
The transmitting unit is used for generating and transmitting a detection light beam, and the receiving unit is used for receiving an echo of the detection light beam reflected by the target object.
By adopting the technical schemes, in the dual-monitoring sensor based on the radar and the PIR, the PIR sensor comprises an infrared sensor probe, a circuit board, a lens and a shell;
The circuit board is arranged in the shell, the infrared sensor probe is connected with the circuit board, the infrared sensor probe is used for detecting infrared signals of the current environment, and the lens cover is arranged above the infrared sensor probe and used for focusing the infrared signals.
Compared with the prior art, the utility model has the following beneficial effects:
When a human body enters a monitoring area, the PIR sensor can detect a pyroelectric signal of the human body to confirm the existence of a target, meanwhile, the radar sensor can emit a laser radar signal and receive an echo signal to accurately acquire the position and motion information of the target, the sensor can accurately monitor the existence and the activity of the target human body by combining the data of the radar sensor and the PIR sensor, so that the reliability of the monitoring system is improved, the horizontal slewing mechanism can drive the radar sensor to swing in the horizontal direction to improve the monitoring range of the radar sensor and realize omnibearing monitoring, and the angle adjusting mechanism can drive the radar sensor and the PIR sensor to swing in the vertical direction to adapt to specific monitoring requirements and avoid monitoring blind areas.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective.
FIG. 1 is a schematic diagram of an explosive structure of a PIR sensor of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is a schematic view of the internal structure of the housing seat according to the present utility model;
FIG. 4 is a schematic view of a horizontal slewing mechanism according to the present utility model;
FIG. 5 is a schematic view of the mounting structure of the following limiting block of the present utility model;
Fig. 6 is a schematic view of a partial structure of the angle adjusting mechanism of the present utility model.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 6, the embodiment of the utility model provides a dual-monitoring sensor based on radar and PIR, which comprises a radar sensor 1, a PIR sensor 2, a horizontal turning mechanism 3, a housing seat 4, an angle adjusting mechanism 5, a swing arm 6 and a bearing seat 7, wherein the horizontal turning mechanism 3 is connected with the housing seat 4 to drive the housing seat 4 to turn in the horizontal direction, a containing space is arranged in the housing seat 4, the angle adjusting mechanism 5 is arranged in the containing space, the angle adjusting mechanism 5 is connected with the bearing seat 7 through the swing arm 6, the angle adjusting mechanism 5 is used for adjusting the swing angle of the bearing seat 7, the radar sensor 1 is arranged on the bearing seat 7, the radar sensor 1 is used for transmitting laser radar signals in a detection area in the horizontal direction and receiving laser radar echo signals reflected by the area to be detected, the PIR sensor 2 is arranged above the radar sensor 1, and the PIR sensor 2 is used for acquiring human body heat signals of the surrounding environment. When a human body enters a monitoring area, the PIR sensor 2 can detect a pyroelectric signal of the human body to confirm the existence of a target, meanwhile, the radar sensor 1 can emit a laser radar signal and receive an echo signal to accurately acquire the position and motion information of the target, a monitoring system can accurately monitor the existence and the activity of the target human body by combining the data of the radar sensor 1 and the PIR sensor 2 to improve the reliability of the monitoring system, the horizontal rotation mechanism 3 can drive the radar sensor 1 to rotate in the horizontal direction to improve the monitoring range of the radar sensor 1 and realize omnibearing monitoring, and the angle adjusting mechanism 5 can drive the radar sensor 1 and the PIR sensor 2 to swing in the vertical direction to adapt to specific monitoring requirements and avoid monitoring blind areas.
As shown in fig. 3 to 5, further, the horizontal swiveling mechanism 3 includes a first motor 31, a first gear 32, a second gear 33, and a swiveling disk 34, the first motor 31 is disposed in the housing seat 4, an output shaft of the first motor 31 is disposed downward and is engaged with the second gear 33 through the first gear 32, the first motor 31 is used for driving the second gear 33 to swivel in a horizontal direction, the second gear 33 is connected with the swiveling disk 34 through a first swivel shaft, the swiveling disk 34 is connected with the housing seat 4, and the housing seat 4 is used for rotating along with the rotation of the swiveling disk 34. When the first motor 31 rotates, the first gear 32 drives the second gear 33 to rotate, and the second gear 33 is connected with the rotating disc 34 through the first rotating shaft, so as to drive the housing seat 4 connected with the rotating disc 34 to realize horizontal rotation.
As shown in fig. 5, further, the horizontal pivoting mechanism 3 further includes a third gear 35 and a first rotary encoder 36, the first rotary encoder 36 is disposed on a side of the second gear 33 away from the first motor 31, the first rotary encoder 36 is engaged with the second gear 33 through the third gear 35, and the first rotary encoder 36 is used for collecting the horizontal rotation angle of the housing seat 4. When the horizontal swiveling mechanism 3 is operated, the first rotary encoder 36 can read the rotational position information of the housing seat 4 and convert it into a digital signal so that the monitoring system can accurately acquire the horizontal swiveling position of the housing seat 4.
As shown in fig. 3 to 6, the angle adjusting mechanism 5 further includes a side plate 51, a second motor 52, a fourth gear 53 and a fifth gear 54, wherein the side plate 51 is disposed on a side wall of the housing base 4, the second motor 52 is disposed on the side plate 51, an output shaft of the second motor 52 is perpendicular to the side plate 51 and is meshed with the fifth gear 54 through the fourth gear 53, the fifth gear 54 is connected with the swing arm 6 through a second rotating shaft, and the swing arm 6 is used for swinging in a vertical direction along with rotation of the fifth gear 54. When the second motor 52 rotates, the fifth gear 54 can be driven to rotate by the fourth gear 53, and the fifth gear 54 is connected with the swing arm 6 through the second rotating shaft, so that the swing arm 6 is driven to perform angle adjustment in the vertical direction, and the monitoring angles of the two sensors are adjusted.
As shown in fig. 4, further, the angle adjusting mechanism 5 further includes a sixth gear 55 and a second rotary encoder 56, where the second rotary encoder 56 is disposed on a side of the side plate 51 away from the second motor 52, and the second rotary encoder 56 is engaged with the fifth gear 54 through the sixth gear 55, and the second rotary encoder is used for collecting a vertical swing angle of the swing arm 6. When the angle adjusting mechanism 5 operates, the second rotary encoder can read the rotation position information of the swing arm 6 and convert the rotation position information into a digital signal, so that the monitoring system can accurately acquire the angle swing position of the swing arm 6, and further accurate control is realized.
As shown in fig. 5, further, the angle adjusting mechanism 5 further includes a follow-up limiting block 57, a first arc baffle 58 and a second arc baffle 59, where the follow-up limiting block 57 is disposed at the bottom of the bearing seat 7, the side plate 51 is in a circular structure, the first arc baffle 58 and the second arc baffle 59 are disposed at the circumferential edge of the side plate 51, and a gap for the reciprocating swing of the follow-up limiting block 57 is disposed between the first arc baffle 58 and the second arc baffle 59, that is, the follow-up limiting block 57 can swing in the gap to limit the angle adjusting range of the swing arm 6.
As shown in fig. 1 and 2, the radar sensor 1 further includes a transmitting unit 11 and a receiving unit 12, where the transmitting unit 11 is configured to generate and transmit a probe beam, and the receiving unit 12 is configured to receive an echo of the probe beam reflected by the target object. The transmitting unit 11 may transmit a probe beam, which may be partially absorbed, reflected or scattered after encountering the target object, and the reflected signal may be received by the receiving unit 12 and analyzed by a processing algorithm, so as to determine position information such as a distance, a direction, a speed, etc. of the target object, so as to accurately track the monitoring system. In the present embodiment, the radar sensor 1 is a lidar sensor.
As shown in fig. 1, further, the PIR sensor 2 includes an infrared sensor probe 21, a circuit board 22, a lens 23, and a housing 24, the circuit board 22 is disposed in the housing 24, the infrared sensor probe 21 is connected with the circuit board 22, the infrared sensor probe 21 is used for detecting infrared signals of the current environment, and the lens 23 is covered above the infrared sensor probe 21 for focusing the infrared signals. The infrared sensor probe 21 captures infrared radiation from the surrounding environment and is processed by the circuit board 22 to detect movement of the human body. The arrangement of the lens 23 can improve the detection sensitivity of the PIR sensor 2.
While the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for some of the features thereof, and that the modifications or substitutions do not depart from the spirit and scope of the embodiments of the utility model.
Claims (8)
1. The dual-monitoring sensor based on the radar and the PIR is characterized by comprising a radar sensor, a PIR sensor, a horizontal rotation mechanism, a shell seat, an angle adjusting mechanism, a swing arm and a bearing seat;
The horizontal rotation mechanism is connected with the shell seat to drive the shell seat to rotate in the horizontal direction, and an accommodating space is formed in the shell seat;
The angle adjusting mechanism is arranged in the accommodating space and is connected with the bearing seat through the swing arm, and the angle adjusting mechanism is used for adjusting the swing angle of the bearing seat;
The radar sensor is arranged on the bearing seat, and is used for transmitting laser radar signals in a detection area in the horizontal direction and receiving laser radar echo signals reflected by the area to be detected;
The PIR sensor is arranged above the radar sensor and is used for acquiring human body pyroelectric signals of surrounding environment.
2. The radar and PIR based dual monitoring sensor of claim 1, wherein the horizontal slewing mechanism comprises a first motor, a first gear, a second gear, and a slewing disk;
the first motor is arranged in the shell seat, an output shaft of the first motor is downwards arranged and is meshed with the second gear through the first gear, and the first motor is used for driving the second gear to rotate in the horizontal direction;
The second gear is connected with the rotary disc through a first rotating shaft, the rotary disc is connected with the shell seat, and the shell seat is used for rotating along with the rotation of the rotary disc.
3. The dual radar and PIR based sensor of claim 2, wherein the horizontal slewing mechanism further comprises a third gear and a first rotary encoder;
the first rotary encoder is arranged on one side, far away from the first motor, of the second gear, and is meshed and connected with the second gear through the third gear, and the first rotary encoder is used for collecting the horizontal rotation angle of the shell seat.
4. The radar and PIR based dual monitoring sensor of claim 3, wherein the angle adjustment mechanism includes a side plate, a second motor, a fourth gear, and a fifth gear;
the side plate is arranged on the side wall of the shell seat, the second motor is arranged on the side plate, and an output shaft of the second motor is perpendicular to the side plate and is meshed with the fifth gear through the fourth gear;
The fifth gear is connected with the swing arm through a second rotating shaft, and the swing arm is used for swinging in an angle along with the rotation of the fifth gear.
5. The dual radar and PIR based sensor of claim 4, wherein the angular adjustment mechanism further includes a sixth gear and a second rotary encoder;
The second rotary encoder is arranged on one side of the side plate, far away from the second motor, and is meshed and connected with the fourth gear through the sixth gear, and the second rotary encoder is used for collecting the vertical swing angle of the swing arm.
6. The dual radar and PIR-based monitoring sensor of claim 5, wherein the angle adjustment mechanism further comprises a follower stop, a first arcuate baffle, and a second arcuate baffle;
The follow-up limiting block is arranged at the bottom of the bearing seat, the side plate is of a circular structure, the first arc-shaped baffle plate and the second arc-shaped baffle plate are arranged at the circumferential edge of the side plate, and a gap for the follow-up limiting block to swing back and forth is arranged between the first arc-shaped baffle plate and the second arc-shaped baffle plate.
7. The radar and PIR based dual monitoring sensor according to claim 1, characterized in that the radar sensor comprises a transmitting unit and a receiving unit;
The transmitting unit is used for generating and transmitting a detection light beam, and the receiving unit is used for receiving an echo of the detection light beam reflected by the target object.
8. The radar and PIR based dual monitoring sensor of claim 1, wherein the PIR sensor comprises an infrared sensor probe, a circuit board, a lens, and a housing;
The circuit board is arranged in the shell, the infrared sensor probe is connected with the circuit board, the infrared sensor probe is used for detecting infrared signals of the current environment, and the lens cover is arranged above the infrared sensor probe and used for focusing the infrared signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421109978.7U CN222259604U (en) | 2024-05-21 | 2024-05-21 | A dual monitoring sensor based on radar and PIR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421109978.7U CN222259604U (en) | 2024-05-21 | 2024-05-21 | A dual monitoring sensor based on radar and PIR |
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| Publication Number | Publication Date |
|---|---|
| CN222259604U true CN222259604U (en) | 2024-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421109978.7U Active CN222259604U (en) | 2024-05-21 | 2024-05-21 | A dual monitoring sensor based on radar and PIR |
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| Country | Link |
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| CN (1) | CN222259604U (en) |
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- 2024-05-21 CN CN202421109978.7U patent/CN222259604U/en active Active
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