An image acquisition terminal

Abstract

The utility model provides a kind of image acquisition terminal, comprising: shell, shell rear side is provided with heat dissipation grille, shell front side is provided with image acquisition mechanism, image acquisition is carried out to commodity.This image acquisition terminal is formed by wide-angle camera and zoom camera and image acquisition mechanism, can quickly identify commodity and automatically identify commodity bar code, simplify operation process, improve identification efficiency;Supplementary light and ambient light sensor cooperate, can be according to ambient light intelligent light compensation, enhance the adaptability of equipment under different illumination conditions, improve image recognition accuracy;Detachable optical filter and micro motor, can filter light as needed, optimize image quality;Gyroscope and micro servo motor are integrated in zoom camera, realize image anti-shake, ensure the image definition under vibration environment.This in addition, magnetic attraction base, universal connecting rod and locking nut constitute the installation mechanism of adjusting equipment angle, all-round guarantee equipment stable operation and convenient use.

Description

Technical Field

[0001] This utility model relates to the field of cash register technology, specifically to an image acquisition terminal. Background Technology

[0002] With rapid economic development, electronic POS systems, as a type of payment device that greatly improves checkout efficiency, are widely used in shopping malls and supermarkets. Traditional POS machines typically consist of a single barcode scanner (such as a camera or barcode scanner) connected to a computer. The scanner transmits the scanned data (QR code) to the computer, which then processes the data (QR code) and connects it to the backend transaction platform to complete the payment.

[0003] Traditional POS systems often suffer from low recognition efficiency, high dependence on ambient light, significant image quality interference from light, and insufficient image stabilization. For example, a single camera struggles to simultaneously capture both the overall product and barcode recognition; monochrome temperature illumination devices are prone to glare and shadows on products under complex lighting conditions, leading to recognition errors; ordinary image acquisition devices lack image stabilization, resulting in blurred images in vibrating environments that affect recognition; and data processing and transmission functions are relatively basic, failing to meet diverse needs. Therefore, there is an urgent need for an image acquisition terminal with efficient recognition, intelligent illumination, stable imaging, and reliable data processing and transmission capabilities to meet the complex application requirements of commercial scenarios. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing an image acquisition terminal.

[0005] The specific technical solution is as follows:

[0006] An image acquisition terminal includes: a housing with a heat dissipation grille on the rear side and an image acquisition mechanism on the front side for acquiring images of goods; a processing module and a communication module are disposed inside the housing for processing signals; and a mounting mechanism is disposed on the rear side of the housing for supporting the housing; wherein the image acquisition mechanism includes a wide-angle camera and a zoom camera disposed on the front side of the housing, and an ambient light sensor and a fill light are also disposed on the front side of the housing.

[0007] In the aforementioned image acquisition terminal, the supplementary light is arranged in a ring on the front side of the housing, and the supplementary light is configured as an inner ring and an outer ring. The supplementary light of the inner ring is cold light, and the supplementary light of the outer ring is warm light. An ambient light sensor electrically connected to the processing module is also provided on the front side of the housing.

[0008] The aforementioned image acquisition terminal, wherein the image acquisition mechanism further includes a gyroscope and a miniature servo motor installed inside the zoom camera.

[0009] In the aforementioned image acquisition terminal, a detachable filter is rotatably connected to the front side of the housing, and an infrared cut-off filter and a polarizing filter are respectively provided on the detachable filter.

[0010] In the aforementioned image acquisition terminal, a turbine fan is fixedly installed on the rear side of the housing, and the turbine fan is disposed between the heat dissipation grille and the housing.

[0011] In the aforementioned image acquisition terminal, a charging coil is fixedly connected inside the rear side of the housing, and the charging coil is electrically connected to a supercapacitor installed inside the housing.

[0012] The aforementioned image acquisition terminal includes an installation mechanism comprising a universal connecting rod fixedly connected to the rear side of the housing, a magnetic base rotatably connected to the universal connecting rod, and a locking nut threaded onto the surface of the universal connecting rod.

[0013] This utility model has the following beneficial effects:

[0014] This image acquisition terminal utilizes an image acquisition mechanism comprised of a wide-angle camera and a zoom camera to quickly identify products and automatically recognize product barcodes, simplifying the operation process and improving recognition efficiency. A supplementary light and an ambient light sensor work together to intelligently supplement lighting based on ambient light conditions, enhancing the device's adaptability to different lighting conditions and improving image recognition accuracy. Removable filters (including an infrared cut-off filter and a polarizing filter) and a miniature motor allow for on-demand light filtering to optimize image quality. A gyroscope and a miniature servo motor are integrated into the zoom camera to achieve image stabilization, ensuring image clarity even in vibrating environments. Furthermore, the mounting mechanism, consisting of a magnetic base, a universal connecting rod, and a locking nut, facilitates easy adjustment of the device's angle, comprehensively ensuring stable operation and convenient use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the image acquisition terminal provided in an embodiment of the present utility model;

[0016] Figure 2 A schematic diagram of the installation mechanism of the image acquisition terminal provided in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the housing in the image acquisition terminal provided in this embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the rear side of the housing in the image acquisition terminal provided in an embodiment of the present utility model.

[0019] In the attached image:

[0020] 100. Housing; 102. Heat dissipation grille; 103. Removable filter; 104. Infrared cut-off filter; 105. Polarizing filter; 106. Turbine fan; 201. Wide-angle camera; 202. Zoom camera; 301. Fill light; 302. Ambient light sensor; 400. Processing module; 500. Communication module; 601. Magnetic base; 602. Universal connecting rod; 604. Locking nut; 802. Charging coil. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] This embodiment provides an image acquisition terminal, such as... Figures 1-4As shown, it includes: a housing 100, a heat dissipation grille 102 on the rear side of the housing 100, and an image acquisition mechanism on the front side of the housing 100 for acquiring images of the product; a processing module 400 and a communication module 500 are installed inside the housing 100 for processing signals; and a mounting mechanism is installed on the rear side of the housing 100 to support the housing 100; wherein, the image acquisition mechanism includes a wide-angle camera 201 and a zoom camera 202 installed on the front side of the housing 100, and an ambient light sensor 302 and a fill light 301 are also installed on the front side of the housing 100.

[0027] An image acquisition terminal employing the above technical solution is equipped with an image acquisition mechanism. A wide-angle camera 201 quickly identifies products, and a zoom camera 202 automatically identifies product barcodes. Simply placing the product with the barcode facing upwards improves recognition efficiency. A supplementary light 301 and an ambient light sensor 302 are used to illuminate the product based on ambient light, improving recognition accuracy. The processing module 400 integrates an image compression chip and an encryption chip, and the communication module 500 supports RS-232, USB, and Wi-Fi multi-protocol communication interfaces.

[0028] To provide supplemental lighting for the merchandise, supplemental lights 301 are arranged in a ring on the front of the housing 100, with an inner and outer ring. The inner ring of supplemental lights 301 emits cool light, while the outer ring emits warm light. An ambient light sensor 302, electrically connected to the processing module 400, is also located on the front of the housing 100. The color temperature is adjustable from 3000K to 6500K. This dual-color-temperature ring light layout addresses the issue of glare / shadow on merchandise under complex lighting conditions, improving recognition accuracy by 27% compared to existing single-color-temperature supplemental lighting equipment.

[0029] To achieve image stabilization, the image acquisition mechanism also includes a gyroscope and a miniature servo motor installed inside the zoom camera 202. By combining mechanical image stabilization with AI recognition algorithms in hardware, image clarity can be maintained even in high-frequency vibration scenarios at the checkout counter.

[0030] To filter light, a detachable filter 103 is rotatably connected to the front of the housing 100. An infrared cut-off filter 104 and a polarizing filter 105 are respectively mounted on the detachable filter 103. A micro motor is fixedly connected inside the housing 100 and to the detachable filter 103, driving the infrared cut-off filter 104 and polarizing filter 105 on the detachable filter 103 to rotate, thus filtering light for the wide-angle camera 201 and the zoom camera 202.

[0031] To dissipate heat from the housing 100, a turbine fan 106 is fixedly installed on the rear side of the housing 100, and the turbine fan 106 is located between the heat dissipation grille 102 and the housing 100.

[0032] To charge the battery inside the housing 100, a charging coil 802 is fixedly connected to the interior rear side of the housing 100. The charging coil 802 is electrically connected to a supercapacitor installed inside the housing 100. A charging port is provided at the bottom of the housing 100, allowing the battery to be charged wirelessly or via wired connection. The supercapacitor supports continuous operation for ≥30 seconds after a power outage.

[0033] To adjust the angle of the housing 100, the mounting mechanism includes a universal connecting rod 602 fixedly connected to the rear side of the housing 100. A magnetic base 601 is rotatably connected to the universal connecting rod 602, and a locking nut 604 is threaded onto the surface of the universal connecting rod 602. By rotating the housing 100 to the desired angle, the angle of the housing 100 can be locked by rotating the locking nut 604.

[0034] In summary, the image acquisition terminal provided in this embodiment has the following advantages: It is equipped with an image acquisition mechanism, enabling rapid identification of goods via a wide-angle camera 201 and automatic identification of product barcodes via a zoom camera 202. Simply placing the product barcode upwards improves recognition efficiency. Furthermore, the use of a supplementary light 301 and an ambient light sensor 302 provides supplementary lighting to the product based on ambient light, enhancing recognition accuracy.

[0035] In use, place the magnetic base 601 in the desired position and adjust the angle of the housing 100 by rotating it. After adjusting to the desired position, rotate the locking nut 604 to lock the angle of the housing 100. The wide-angle camera 201 and the zoom camera 202 are used to identify the goods and barcodes to achieve fast checkout. The ambient light sensor 302 is used to identify the ambient light, and the processing module 400 controls the supplementary light 301 to provide supplementary lighting, which facilitates the identification of the wide-angle camera 201 and the zoom camera 202.

[0036] This image acquisition terminal achieves product image acquisition and information processing through the coordinated operation of its various components. The specific working principle is as follows:

[0037] 1. Image acquisition and recognition:

[0038] Wide-angle camera 201: Used for rapid identification of goods, capturing overall images of the goods and providing a wide range of visual information.

[0039] Zoom Camera 202: Enables automatic recognition of product barcodes. When the product barcode is placed face up, it can accurately read the barcode information, improving recognition efficiency. Its internal gyroscope and miniature servo motor work together to achieve image stabilization, ensuring image clarity and improving recognition accuracy even in high-frequency vibration scenarios at the checkout counter.

[0040] Ambient light sensor 302: Detects ambient light intensity in real time and transmits the data to processing module 400.

[0041] The supplementary light 301 is arranged in a ring on the front of the housing 100, consisting of an inner ring of cool light and an outer ring of warm light, with an adjustable color temperature range of 3000K-6500K. The processing module 400 controls the supplementary light 301 to adjust its brightness and color temperature based on data detected by the ambient light sensor 302, solving the problem of glare / shadow on goods under complex lighting conditions. Compared to existing single-color temperature supplementary lighting devices, the recognition accuracy is significantly improved, providing excellent shooting light conditions for the wide-angle camera 201 and the zoom camera 202.

[0042] Detachable filter 103: A detachable filter 103 is rotatably connected to the front of the housing 100. The infrared cut-off filter 104 and polarizing filter 105 on it rotate under the drive of a micro motor to filter the wide-angle camera 201 and the zoom camera 202, eliminate infrared light interference and the influence of reflected light, and further improve image quality.

[0043] 2. Signal processing and transmission:

[0044] Processing module 400: integrates an image compression chip and an encryption chip, compresses the image data collected by the wide-angle camera 201 and the zoom camera 202 to reduce the amount of data, and encrypts the data to ensure data security; and controls the operation of the fill light 301 based on the data from the ambient light sensor 302.

[0045] Communication module 500: Supports RS232, USB and WiFi multi-protocol communication interfaces, and transmits the image data and recognition information processed by processing module 400 to other devices (such as a POS system) to realize data interaction.

[0046] 3. Equipment support and angle adjustment:

[0047] Magnetic base 601: It can be magnetically attached to the desired position to fix the image acquisition terminal in place.

[0048] Universal connecting rod 602: connects housing 100 and magnetic base 601, can rotate flexibly, and realizes multi-angle adjustment of housing 100.

[0049] Locking nut 604: By rotating the locking nut 604, the rotation angle of the universal connecting rod 602 can be locked, and the housing 100 can be fixed in the required position for convenient use in different scenarios.

[0050] 4. Heat dissipation and power supply:

[0051] Heat dissipation grille 102 and turbine fan 106: The turbine fan 106 on the rear side of the housing 100 is located between the heat dissipation grille 102 and the housing 100. When working, it accelerates air circulation and dissipates the heat generated by the internal processing module 400 and other components of the housing 100, preventing the equipment from affecting its performance due to overheating.

[0052] Charging coil 802 and charging port: The charging coil 802 inside the rear of the housing 100 is electrically connected to the supercapacitor, supporting wireless charging; at the same time, the charging port at the bottom of the housing 100 can be used for wired charging. The supercapacitor can support the device to continue working for ≥30 seconds after a power outage, ensuring that the device can still complete its current work tasks in the event of a sudden power failure.

[0053] Example models of the ambient light sensor 302, processing module 400, and communication module 500 of this image acquisition terminal are as follows:

[0054] Ambient light sensor 302: TEMT6000. This sensor's response to visible light illuminance is similar to that of the human eye; it is sensitive only to visible light, requires no additional filters, and has good linear output. Its operating voltage is DC 3.3-5.5V, operating temperature is -40-85°C, illuminance range is 1-1000 Lux, and the output signal is an analog voltage, ranging from 0-5V at a 5V operating voltage.

[0055] Processing Module 400: RK3588J. This module features an octa-core CPU (quad-core A76 + quad-core A55) and an ARMG610MP4 GPU, with a built-in NPU boasting 6 TOPs of computing power, characterized by high computing power and low power consumption. It incorporates Rockchip's self-developed 48M-pixel ISP (Image Signal Processor), supports numerous algorithm accelerators, and can process up to 8K@60fps H.265 and VP9 video, 8K@30fps H.264 video, and 4K@60fps AV1 video, meeting the image data processing needs of image acquisition terminals.

[0056] Communication Module 500: Taking the communication module in the Honeywell Dolphin 6100 data acquisition unit as an example, it integrates Bluetooth and 802.11b / g wireless communication modules. Similar modules supporting Bluetooth and Wi-Fi communication can also be selected in image acquisition terminals to achieve data transmission with other devices, and advanced wireless protocol standards ensure the accuracy and security of information. If RS-232 or USB interface communication functions are required, communication modules with corresponding interfaces can be selected, such as the CP2102 USB-to-RS-232 chip combined with related circuitry to form a communication module that enables serial communication.

[0057] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An image acquisition terminal, characterized in that, include: The housing (100) has a heat dissipation grille (102) on its rear side and an image acquisition mechanism on its front side for acquiring images of the product. The housing (100) also has a processing module (400) and a communication module (500) inside for processing signals. The mounting mechanism is located on the rear side of the housing (100) to support the housing (100); The image acquisition mechanism includes a wide-angle camera (201) and a zoom camera (202) disposed on the front side of the housing (100). An ambient light sensor (302) and a fill light (301) are also disposed on the front side of the housing (100). The fill light (301) is arranged in a ring on the front side of the housing (100), and the fill light (301) is configured as an inner ring and an outer ring. The fill light (301) of the inner ring is cold light, and the fill light (301) of the outer ring is warm light. An ambient light sensor (302) electrically connected to the processing module (400) is also disposed on the front side of the housing (100). The image acquisition mechanism also includes a gyroscope and a micro servo motor installed inside the zoom camera (202). A detachable filter (103) is rotatably connected to the front side of the housing (100). An infrared cut-off filter (104) and a polarizing filter (105) are respectively disposed on the detachable filter (103).

2. The image acquisition terminal according to claim 1, characterized in that, A turbine fan (106) is fixedly installed on the rear side of the housing (100), and the turbine fan (106) is disposed between the heat dissipation grille (102) and the housing (100).

3. The image acquisition terminal according to claim 1, characterized in that, A charging coil (802) is fixedly connected inside the rear side of the housing (100), and the charging coil (802) is electrically connected to a supercapacitor installed inside the housing (100).

4. The image acquisition terminal according to any one of claims 1-3, characterized in that, The installation mechanism includes a universal connecting rod (602) fixedly connected to the rear side of the housing (100), a magnetic base (601) rotatably connected to the universal connecting rod (602), and a locking nut (604) threaded onto the surface of the universal connecting rod (602).

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