CN111880237A - Shelf infrared induction strip and induction method thereof - Google Patents

Abstract

The invention discloses a shelf infrared sensing strip and a sensing method thereof. The infrared sensing strip comprises: a circuit board; a controller; an infrared sensing device, wherein the infrared sensing device comprises an infrared receiving device and an infrared emitting device; the controller The circuit board is electrically connected, the infrared receiving device and the infrared transmitting device are connected and fixed on the circuit board, and the controller is electrically connected to the infrared receiving device and the infrared transmitting device for controlling the infrared receiving device And the infrared emitting device, the infrared sensing strip can avoid being affected by the adjacent infrared sensing devices, and the adjustable calibration light can be set by the controller to adapt to different shelf scenes.

Description

A kind of shelf infrared induction strip and induction method thereof

Field of Invention

The invention relates to the technical field of infrared sensing, in particular to a shelf infrared sensing strip and a sensing method thereof.

Background of the Invention

In the prior art solution, the infrared sensor that senses the human body usually needs to install an infrared ray receiving device to receive and sense infrared light from the human body. When the human body enters the sensing range of the infrared sensor, a corresponding sensing signal will be sent. The range will send a far-away signal, but the existing infrared sensors have poor positioning accuracy for the human body, and the sensing accuracy within a specific range is not enough. The induction is triggered outside, which may cause induction errors.

SUMMARY OF THE INVENTION

One of the main purposes of the present invention is to provide a shelf infrared sensing strip and a sensing method thereof. The infrared sensing strip is structurally designed with multiple sets of infrared transceivers that emit infrared rays in a fixed direction, and receives infrared rays by emitting infrared rays in a specific frequency band. The reflected light of the ray is used to sense the position of the human hand, thereby improving the sensing accuracy of the human hand.

Another main purpose of the present invention is to provide a shelf infrared sensor strip and a sensing method thereof, wherein the infrared transceiver devices in the infrared sensor strip are composed of an isolation ring including but not limited to a rubber ring, which is used to isolate different infrared emission The infrared light emitted by the transmitter can effectively avoid mutual influence between adjacent infrared transceivers.

Another object of the present invention is to provide a shelf infrared sensor strip and a sensing method thereof. The infrared sensor strip is provided with a USB interface, wherein the USB interface includes a female interface and a male interface, which are respectively arranged on the two ports of the sensor strip. Therefore, Multiple sensing strips can be connected in series to realize data flow and power supply between different sensing strips.

Another object of the present invention is to provide a shelf infrared sensing strip and a sensing method thereof. The infrared sensing strip can adjust and set different calibration light sources according to different shelf environments, so as to adapt to human hand sensing in different shelf scenarios, and can comprehensively improve the sensing accuracy .

Another object of the present invention is to provide an infrared sensing strip for a shelf and a sensing method thereof. The edge of the infrared sensing strip is provided with a plurality of buckle structures, so that the structure of the entire infrared sensing strip is more compact and convenient for the infrared sensing. Installation and removal of strips.

In order to achieve at least one of the above purposes of the invention, the present invention further provides a shelf infrared sensor strip, comprising:

circuit board;

controller;

an infrared sensing device, the infrared sensing device includes an infrared receiving device and an infrared transmitting device;

The controller is electrically connected to the circuit board, the infrared receiving device and the infrared transmitting device are connected and fixed on the circuit board, and the controller is electrically connected to the infrared receiving device and the infrared transmitting device for controlling the The infrared receiving device and the infrared transmitting device are described.

According to a preferred embodiment of the present invention, two ends of the circuit board are respectively connected to USB interfaces, the USB interfaces include a USB male interface and a USB female interface, one end of the circuit board is connected to the USB female interface, and the other end is connected to the USB female interface. The USB male interface is used for data transmission and power supply of the infrared sensor strip.

According to another preferred embodiment of the present invention, the infrared receiving device and the infrared transmitting device are fixed side by side on the central axis of the circuit board, the outer surfaces of the infrared receiving device and the infrared transmitting device are respectively provided with isolation rings, and the The isolation ring is used to isolate the infrared rays emitted by the adjacent infrared sensing devices.

According to another preferred embodiment of the present invention, the spacer ring is composed of rubber material.

According to another preferred embodiment of the present invention, three sets of infrared sensing devices are arranged on the same axis on the circuit board, and a distance of at least 5CM is set between each set of infrared sensing devices to reduce the influence of adjacent infrared sensing devices .

According to another preferred embodiment of the present invention, the infrared sensing device further includes an upper casing plate and a lower casing plate, the circuit board is mounted and fixed on the lower casing plate, and the upper casing plate and the lower casing plate are snap-connected .

According to another preferred embodiment of the present invention, the circuit board is provided with a plurality of positioning holes, the lower shell is provided with positioning posts corresponding to the circuit board, and the positioning posts are connected to the positioning holes to fix the circuit board.

According to another preferred embodiment of the present invention, the controller sets a triggering threshold, and if the reflected infrared light intensity is greater than the set triggering threshold, the controller sends a triggering instruction to the infrared sensing device, so that the infrared radiation is emitted The device increases the emission frequency, and if the reflected infrared light intensity is less than the set trigger threshold, the controller sends a sleep instruction to the infrared sensing device to reduce the infrared emission frequency and make the infrared emission frequency in a sleep state.

In order to achieve at least one of the above purposes of the invention, the present invention further provides an infrared sensing method for a shelf, the sensing method comprising the following steps:

Preset ambient light intensity upper limit threshold, light intensity lower limit threshold and trigger threshold;

Measure and obtain the ambient light intensity value, and compare the obtained ambient light intensity with the ambient light intensity threshold;

Automatically adjusts infrared emission intensity and/or trigger threshold based on comparison results.

According to another preferred embodiment of the present invention, if the ambient light intensity is greater than the preset ambient light intensity upper threshold, the infrared emission intensity is increased and/or the trigger threshold is decreased.

According to another preferred embodiment of the present invention, if the ambient light intensity is less than the preset lower limit threshold of ambient light intensity, the infrared emission intensity is reduced and/or the trigger threshold is increased.

Description of drawings

FIG. 1 shows a schematic perspective view of a preferred embodiment of a shelf infrared sensor strip of the present invention;

FIG. 2 shows a schematic top view of a preferred embodiment of a shelf infrared sensor strip of the present invention;

FIG. 3 shows a schematic flowchart of an infrared sensing method of the present invention.

in,

Circuit board 10-10, infrared sensing device 11-11, infrared transmitting device 111-111, infrared receiving device-112, rubber ring 12-12, USB interface 13-13, USB male interface-131, USB female interface-132, Lower shell-20, fixing hole-21, positioning post-22.

Detailed ways

The following description serves to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments described below are given by way of example only, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and to simplify the description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus the above terms should not be construed as limiting the invention.

It should be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be one. The number may be plural, and the term "one" should not be understood as a limitation on the number.

Please refer to the schematic diagram of a shelf infrared sensor strip of the present invention shown in FIGS. 1-2. The infrared sensor strip includes a controller, an infrared sensor device 11 and a circuit board 10, wherein the controller is connected to the circuit board 10, and all The controller is electrically connected to the circuit board 10. The infrared sensing device 11 includes an infrared receiving device 112 and an infrared transmitting device 111. The infrared receiving device 112 and the infrared transmitting device 111 are respectively arranged side by side in the middle of the circuit board 10. On the axis, the circuit board 10 has an elongated structure, the infrared sensing device 11 and the controller are electrically connected to the circuit board 10 , and the electrical power between the controller and the infrared sensing device 11 is realized through the circuit board 10 . connection, for the controller to control the state of the infrared sensing device 11 .

It is worth mentioning that the two sides of the circuit board 10 are provided with USB interfaces 13, one end of the circuit board 10 is provided with a USB female interface 132, and the other end is provided with a USB male interface 131, so that it can be used between multiple sensing strips. The end-to-end connection can realize data flow between different sensing strips. The circuit board 10 is provided with positioning holes, and the positioning is preferably set on the central axis of the circuit board 10. Further, the sensing strips also include The lower casing 20 and the upper casing, the lower casing 20 is provided with a plurality of positioning columns 22, the positioning columns 22 are disposed corresponding to the positioning holes on the circuit board 10, and the positioning columns 22 are inserted into all the positions during installation. The diameter of the positioning hole is slightly larger than the diameter of the positioning column 22 , so that the positioning column 22 can effectively fix the circuit board 10 to the positioning column 22 . It should be noted that the controller can be optionally installed on the back or the front of the circuit board 10. Preferably, in the present invention, the controller is installed on the back of the circuit board 10, so that the sensor strip is installed when the sensor bar is installed. Or reduce damage to the controller when disassembling.

Further, the infrared sensing device 11 is provided with a rubber ring 12, the rubber ring 12 is annularly wrapped around the edges of the infrared receiving device 112 and the infrared transmitting device, and the rubber ring 12 is used to restrict the emission and transmission of infrared rays. Receiving mode, so that the infrared emitting device 111 and the infrared receiving device 112 emit or receive infrared rays in a specified direction, wherein in order to better distinguish the sensing area, in the present invention, the adjacent infrared sensing devices 11 are separated by 5CM, thereby The induction information in the range of 5CM can be recognized, and the induction information of the commodity shelf can be displayed at intervals of 5CM accuracy, which is conducive to the high-density and high-precision SKU (stock keeping unit) layout of the commodity on the shelf, and the interval setting of 5CM can be set. The infrared interference emitted by the adjacent infrared sensing devices 11 can be effectively avoided, and the accuracy of infrared sensing can be improved.

It is worth mentioning that the present invention further provides a shelf infrared sensing method. The infrared receiving device in the infrared sensing device 11 is also used to obtain light intensity data in the environment, and the controller analyzes the light intensity data in the environment. , the upper and lower thresholds of ambient light intensity are preset in the controller, and if the received ambient light intensity is greater than the upper threshold of ambient light intensity, the emission intensity of the infrared emitting device is increased and/or the triggering of the infrared receiving device is reduced threshold. In other words, when the ambient light intensity is higher than the preset ambient light intensity upper limit threshold, the controller sends the infrared sensing device 11 to increase the emission intensity of the infrared rays. The reflected infrared light intensity increases after encountering the obstruction, so that the infrared receiving device can more easily reach the preset trigger threshold, so that the induction sensitivity of the whole induction strip is improved, and the influence on the infrared induction of impurity light in the environment is reduced. Further, in another preferred embodiment of the present invention, when the ambient light intensity obtained by the infrared receiving device 112 is greater than the lower limit threshold of the ambient light intensity, the controller sends an adjustment instruction to the infrared receiving device 112, By lowering the trigger threshold, the infrared receiving device 112 can sense infrared rays with smaller light intensity, thereby improving the sensitivity of the infrared sensing device 11 .

If the ambient light intensity received by the infrared receiving device is less than the lower limit threshold of ambient light intensity, the controller automatically reduces the light intensity emitted by the infrared transmitting device 111, or automatically increases the triggering threshold of the infrared receiving device 112, and the triggering The threshold will determine whether the item is in the sensing range. When the received infrared light is stronger than the trigger threshold, it can be judged whether the blocking item is in the sensing range. Due to the setting of the rubber ring 12, the emission and reception directions of the infrared light can be made. Fixed, the infrared sensing interval can be precisely set in combination with the trigger threshold.

Further, the long edges of the lower casing 20 and the upper casing of the sensing bar are provided with a plurality of snap structures, and the snap structures are used to snap and encapsulate the sensing bar. The edge is further provided with fixing holes 21 , and fasteners can be inserted in the fixing holes 21 , and the fixing holes 21 can be pressed or clamped by the fasteners, so that the circuit board 10 can be fixed.

Those skilled in the art should understand that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been completely and effectively achieved, and the functions and structural principles of the present invention Having been shown and described in the embodiments, any variation or modification of the embodiments of the present invention is possible without departing from the described principles.

Claims (10)

1. a shelf infrared sensor strip, is characterized in that, comprises: circuit board; controller; an infrared sensing device, the infrared sensing device includes an infrared receiving device and an infrared transmitting device; The controller is electrically connected to the circuit board, the infrared receiving device and the infrared transmitting device are connected and fixed on the circuit board, and the controller is electrically connected to the infrared receiving device and the infrared transmitting device for controlling the The infrared receiving device and the infrared transmitting device are described. 2 . The shelf infrared sensor strip according to claim 1 , wherein two ends of the circuit board are respectively connected to USB interfaces, and the USB interfaces include a USB male interface and a USB female interface, and the circuit One end of the board is connected to the USB female interface, and the other end is connected to the USB male interface, which is used for data transmission and power supply of the infrared sensor strip. 3. A shelf infrared sensor strip according to claim 1, wherein the infrared receiving device and the infrared transmitting device are fixed side by side on the central axis of the circuit board, and the infrared receiving device and the infrared transmitting device are fixed side by side on the central axis of the circuit board. The outer surfaces are respectively provided with isolation rings, and the isolation rings are used to isolate the infrared rays emitted by the adjacent infrared sensing devices. 4 . The shelf infrared sensor strip according to claim 3 , wherein the spacer is made of rubber material. 5 . 5. A shelf infrared sensor strip according to claim 1, characterized in that 3 groups of infrared sensors are arranged on the same axis on the circuit board, and an interval distance of at least 5CM is set between each group of infrared sensors. , to avoid being affected by adjacent infrared sensing devices. 6 . The shelf infrared sensing strip according to claim 1 , wherein the infrared sensing device further comprises an upper shell board and a lower shell board, the circuit board is mounted and fixed on the lower shell board, and the The upper shell plate and the lower shell plate are snap-connected. 7 . The shelf infrared sensor strip according to claim 6 , wherein the circuit board is provided with a plurality of positioning holes, and the lower shell is provided with positioning posts corresponding to the circuit board. 8 . , the positioning post is connected to the positioning hole to fix the circuit board. 8 . The shelf infrared sensor strip according to claim 1 , wherein the controller sets a trigger threshold, and if the reflected infrared light intensity is greater than the set trigger threshold, the controller sends the infrared sensor to the infrared sensor. 9 . The device sends a trigger instruction to make the infrared emission device increase the emission frequency. If the reflected infrared light intensity is less than the set trigger threshold, the controller sends a sleep instruction to the infrared sensing device to reduce the infrared emission frequency, so that the The infrared emission frequency is in sleep state. 9. A shelf infrared sensing method, wherein the sensing method comprises the following steps: Preset ambient light intensity upper limit threshold, light intensity lower limit threshold and trigger threshold; Measure and obtain the ambient light intensity value, and compare the obtained ambient light intensity with the ambient light intensity threshold; Automatically adjusts infrared emission intensity and/or trigger threshold based on comparison results. 10 . The shelf infrared sensing method according to claim 9 , wherein if the ambient light intensity is greater than a preset upper threshold of ambient light intensity, the infrared emission intensity is increased and/or the trigger threshold is decreased. 11 .

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