Infrared-based visitors flow in and out statistical device

Abstract

The utility model discloses an infrared-based pedestrian flow in and out statistical device which comprises a fixed seat, an exhaust fan, a fixed plate, a slot, a mounting plate, a pyroelectric infrared sensor, a locking groove and a linkage seat. The beneficial effects of the utility model are that the device measures the movement of a human body through the pyroelectric infrared sensor, comprehensively judges and sends two messages of a person entering and a person exiting through the two probes, further realizes the statistics of people flow entering and exiting, and in the daily maintenance process of the device, if the device needs to be split, the device can be conveniently and rapidly maintained. When the mounting plate is mounted, the limiting rod slides in the limiting sliding groove for unlocking by pushing the mounting plate, the linkage seat slides under the action of the elastic force of the spring at the moment, the locking rod is separated from the locking groove, the mounting plate slides out of the inserting groove at the moment to achieve the quick splitting effect, and vice versa, the mounting plate is mounted; through the structure, a worker can quickly disassemble and assemble the pyroelectric infrared sensor, and the working efficiency of the device during daily maintenance is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of statistical device technology, specifically to an infrared-based pedestrian flow entry and exit statistical device. Background Technology

[0002] The problem of people flow statistics has become a cutting-edge area of ​​interest in computer vision and intelligent security monitoring in recent years. It can be widely used in public places such as shopping malls, tourist attractions, and exhibition halls to obtain the current flow of people entering and leaving the area and the density of people in the area, providing data support for management, security early warning, and people flow guidance.

[0003] However, most existing statistical devices have various problems. For example, in the infrared temperature sensor-based people flow counting device disclosed in publication number CN205193858U, although it improves the stability, accuracy and speed of people flow counting, since the counting device is generally installed in public places, it will generally work under high load for a long time in daily life. This means that it needs to be inspected and maintained regularly to avoid damage. At present, most counting devices are still connected to the external fixed structure by bolts, so disassembly and assembly often require a lot of time and effort and cannot be done quickly.

[0004] To address this, an infrared-based pedestrian flow counting device is proposed. Utility Model Content

[0005] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the purpose of this utility model is to overcome the aforementioned shortcomings in existing technologies by proposing an infrared-based pedestrian flow counting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An infrared-based pedestrian flow counting device includes a fixed base, a fixed plate, a slot, a mounting plate, and a pyroelectric infrared sensor. The fixed plate with a Z-shaped structure is symmetrically arranged on both sides of the fixed base. The slot is located at the front end of the fixed base. The mounting plate is inserted into the slot. The pyroelectric infrared sensor is located at the bottom of the mounting plate. At least two sets of the pyroelectric infrared sensor and its overall connection structure are provided. The fixed base is provided with a limit mechanism inside.

[0008] The mounting plate is detachably connected to the fixed seat through a limiting mechanism, and the limiting mechanism includes a linkage seat. The fixed seat has strip-shaped slots on both sides, and the linkage seat is slidably connected in the slots and symmetrically arranged on both sides of the fixed seat. The linkage seat has an inclined structure on one side, and the two sides of the mounting plate abut against the inclined surface respectively.

[0009] Preferably, the limiting mechanism further includes a locking groove and a locking rod. The locking groove is recessed and disposed on both sides of the mounting plate. The locking rod is obliquely fixed to one end of the linkage seat and has a protrusion on it. The protrusion slides and engages in the obliquely disposed groove on the fixed seat.

[0010] Preferably, the limiting mechanism further includes a limiting groove and a limiting rod. The limiting groove has a Y-shaped structure and is recessed on the linkage seat. A height difference structure is provided in the limiting groove. One end of the limiting rod is connected to the fixed seat, and the other end is slidably engaged in the limiting groove.

[0011] Preferably, the limiting mechanism further includes a spring, one end of which is connected to the fixed seat, and the other end of which is connected to the end of the linkage seat away from the limiting rod.

[0012] Preferably, the mounting base has several rectangular slots through which an exhaust fan is fixedly installed.

[0013] Preferably, the pyroelectric infrared sensor includes two probes, which respectively send two types of messages: one for people entering and one for people exiting. The pyroelectric infrared sensor is powered by an external power supply or a built-in battery. The probe detection angle of the pyroelectric infrared sensor is 90° in the X direction and 60° in the Y direction.

[0014] The beneficial effects of this utility model are:

[0015] This device measures human movement using a pyroelectric infrared sensor and, through two probes, makes a comprehensive judgment, sending two types of messages: one indicating someone is entering and the other indicating someone is exiting. This allows for the statistical analysis of the flow of people entering and exiting the device. During routine maintenance, if disassembly is required, the mounting plate is pushed to allow the limiting rod to slide and unlock within the limiting groove. At this time, the linkage seat slides under the spring force, and simultaneously the locking rod disengages from the locking groove. The mounting plate then slides out of the slot, achieving a quick disassembly. The reverse process is also possible. This structure allows workers to quickly assemble and disassemble the pyroelectric infrared sensor, greatly improving the efficiency of routine maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exhaust fan connection structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting plate connection structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the linkage seat structure of this utility model;

[0021] Figure 6 This is a schematic diagram illustrating the working principle of the pyroelectric infrared sensor of this utility model.

[0022] In the diagram: 1. Fixed base, 2. Exhaust fan, 3. Fixed plate, 4. Slot, 5. Mounting plate, 6. Pyroelectric infrared sensor, 7. Locking slot, 8. Linkage seat, 9. Limiting slide, 10. Spring, 11. Limiting rod, 12. Locking rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] like Figures 1 to 6 As shown, an infrared-based pedestrian flow counting device includes a fixed base 1, a fixed plate 3, a slot 4, a mounting plate 5, and a pyroelectric infrared sensor 6. The fixed plate 3 with a Z-shaped structure is symmetrically arranged on both sides of the fixed base 1. The slot 4 is located at the front end of the fixed base 1. The mounting plate 5 is inserted into the slot 4. The pyroelectric infrared sensor 6 is located at the bottom of the mounting plate 5, and at least two sets of the pyroelectric infrared sensor 6 and its overall connection structure are provided. The fixed base 1 is provided with a limit mechanism inside.

[0025] The mounting plate 5 is detachably connected to the fixed seat 1 through a limiting mechanism. The limiting mechanism includes a linkage seat 8. The fixed seat 1 has strip-shaped slots on both sides. The linkage seat 8 is slidably connected in the slots and is symmetrically arranged on both sides of the fixed seat 1. The linkage seat 8 has an inclined structure on one side, and the two sides of the mounting plate 5 abut against the inclined surface respectively.

[0026] The limiting mechanism also includes a locking groove 7 and a locking rod 12. The locking groove 7 is recessed and is provided on both sides of the mounting plate 5. The locking rod 12 is obliquely fixed to one end of the linkage seat 8, and a protrusion is provided on the locking rod 12. The protrusion slides and engages in the obliquely provided groove on the fixed seat 1.

[0027] The limiting mechanism also includes a limiting slide 9 and a limiting rod 11. The limiting slide 9 has a Y-shaped structure and is recessed on the linkage seat 8. A height difference structure is provided in the limiting slide 9. One end of the limiting rod 11 is connected to the fixed seat 1, and the other end is slidably engaged in the limiting slide 9.

[0028] The limiting mechanism also includes a spring 10, one end of which is connected to the fixed base 1, and the other end is connected to the end of the linkage base 8 away from the limiting rod 11.

[0029] In this device, the movement of the human body is measured by the pyroelectric infrared sensor 6, and the movement is judged by two probes to send two types of messages: one indicating someone is entering and the other indicating someone is exiting. This enables the statistics of the flow of people entering and exiting the device. During routine maintenance, if the device needs to be disassembled, the mounting plate 5 is pushed to allow the limiting rod 11 to slide and unlock within the limiting groove 9. At this time, the linkage seat 8 slides under the elastic force of the spring 10, and the locking rod 12 disengages from the locking groove 77. The mounting plate 5 then slides out of the slot 4, achieving a quick disassembly effect. The reverse is also true for installation. This structure allows workers to quickly disassemble and assemble the pyroelectric infrared sensor 6, greatly improving the efficiency of routine maintenance. Example

[0030] like Figures 1 to 6 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0031] The mounting base 1 has several rectangular slots through which an exhaust fan 2 is fixedly installed. The exhaust fan 2 drives the airflow, thereby quickly reducing the heat generated by the pyroelectric infrared sensor 6 during operation and preventing it from being damaged due to excessive heat.

[0032] Both the mounting base 1 and the mounting plate 5 are made of aluminum alloy composite material, which further improves heat dissipation efficiency.

[0033] The pyroelectric infrared sensor 6 includes two probes, which make a comprehensive judgment and send two types of messages: one indicating someone is entering and the other indicating someone is leaving. The pyroelectric infrared sensor 6 is powered by an external power supply or a built-in battery. The probes of the pyroelectric infrared sensor 6 have a detection angle of 90° in the X direction and 60° in the Y direction.

[0034] Working principle: When using this statistical device, first fix the fixed base 1 in a suitable position, such as on the ceiling, using the fixed plate 3. Then, insert the mounting plate 5 into the slot 4. At the same time as insertion, the mounting plate 5 pushes the linkage base 8 to move. At this time, the protrusion on the locking rod 12 slides in the inclined groove on the fixed base 1 until it is locked in the locking groove 7, thus locking the mounting plate 5. At the same time as the linkage base 8 moves, the limiting rod 11 slides in the limiting slide groove 9 and is locked in the center of the limiting slide groove 9. Then, the movement of the human body is measured by the pyroelectric infrared sensor 6, and the movement is judged by the two probes. Two kinds of messages, namely "someone enters" and "someone exits", are sent to achieve the statistics of the flow of people entering and exiting.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An infrared-based pedestrian flow counting device, comprising a fixed base (1), a fixed plate (3), a slot (4), a mounting plate (5), and a pyroelectric infrared sensor (6), characterized in that, The Z-shaped fixing plate (3) is symmetrically arranged on both sides of the fixing base (1), the slot (4) is arranged at the front end of the fixing base (1), the mounting plate (5) is inserted into the slot (4), the pyroelectric infrared sensor (6) is arranged at the bottom of the mounting plate (5), the pyroelectric infrared sensor (6) and its overall connection structure are provided in at least two sets, and the fixing base (1) is provided with a limit mechanism inside. The mounting plate (5) is detachably connected to the fixed seat (1) through a limiting mechanism. The limiting mechanism includes a linkage seat (8). The fixed seat (1) has strip-shaped slots on both sides. The linkage seat (8) is slidably connected in the slots and symmetrically arranged on both sides of the fixed seat (1). The linkage seat (8) has an inclined structure on one side. The two sides of the mounting plate (5) abut against the inclined surface respectively.

2. The infrared-based pedestrian flow counting device according to claim 1, characterized in that: The limiting mechanism also includes a locking groove (7) and a locking rod (12). The locking groove (7) is recessed and set on both sides of the mounting plate (5). The locking rod (12) is obliquely fixed to one end of the linkage seat (8), and a protrusion is provided on the locking rod (12). The protrusion slides and engages in the slot obliquely set on the fixed seat (1).

3. The infrared-based pedestrian flow counting device according to claim 1, characterized in that: The limiting mechanism also includes a limiting groove (9) and a limiting rod (11). The limiting groove (9) has a Y-shaped structure and is recessed on the linkage seat (8). A height difference structure is provided in the limiting groove (9). One end of the limiting rod (11) is connected to the fixed seat (1), and the other end of the limiting rod (11) is slidably engaged in the limiting groove (9).

4. The infrared-based pedestrian flow counting device according to claim 1, characterized in that: The limiting mechanism also includes a spring (10), one end of which is connected to the fixed seat (1), and the other end of which is connected to the linkage seat (8) away from the limiting rod (11).

5. The infrared-based pedestrian flow counting device according to claim 1, characterized in that: The mounting base (1) has several rectangular slots through which an exhaust fan (2) is fixedly installed.

6. The infrared-based pedestrian flow counting device according to claim 1, characterized in that: The pyroelectric infrared sensor (6) includes two probes for sending two types of messages: one for someone entering and one for someone exiting. The pyroelectric infrared sensor (6) is powered by an external power supply or a built-in battery. The probes of the pyroelectric infrared sensor (6) have a detection angle of 90° in the X direction and 60° in the Y direction.

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