Light supplement control circuit based on AR glasses code scanning
Patent Information
- Application Number
- CN202522228488.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0003]本实用新型提供一种基于AR眼镜扫码的补光控制电路，用以解决现有技术中AR眼镜无按键或仅有一枚多功能键，无法完成“瞄准→补光→曝光→关闭”的完整时序的问题
[0014]本实用新型提供的基于AR眼镜扫码的补光控制电路，通过设置传感器和锁存器，利用传感器识别触发动作，进而INT1下降沿经锁存器锁存后，即使头部继续运动，锁存器仍保持有效电平，触发模拟开关打开；同时，CPU控制摄像头开始图像采集工作，在图像采集过程中，补光灯同步摄像头的曝光动作，补光灯还与瞄准灯交替打开；在解码成功后CPU会将各硬件的状态恢复至初始阶段，一套逻辑下来，实现“零按键”触发并完成“瞄准→补光→曝光→关闭”的完整时序。
Smart Images
Figure CN224790820U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to light supplementing control circuit technical field especially relates to a light supplementing control circuit based on AR glasses code scanning. BACKGROUND
[0002] In high-frequency code scanning scenes such as warehouse logistics, production line tracing and retail inventory, the staff usually holds a PDA / code scanning gun in one hand and carries or picks goods in the other hand, which is low in operation efficiency and high in labor intensity. In recent years, head-mounted AR (Augmented Reality) glasses have become a new direction to improve work efficiency by separating the camera, display screen and host computer, changing the "code scanning" action from hand-held to "line of sight scanning", thereby freeing the hands. However, the light supplementing, aiming and trigger logic in the traditional code scanner are designed around the use habit of "hand holding", and the trigger mode relies on physical keys. AR glasses have no keys or only one multifunctional key, which cannot complete the complete timing of "aiming → light supplementing → exposure → closing". Therefore, there is an urgent need for a light supplementing control circuit specially designed for the "AR glasses + separated host computer" architecture to realize full-automatic closed-loop control of triggering, aiming, light supplementing, exposure and closing. SUMMARY
[0003] The utility model provides a kind of light supplementing control circuit based on AR glasses code scanning to solve the problem that AR glasses have no keys or only one multifunctional key in prior art, which cannot complete the complete timing of "aiming → light supplementing → exposure → closing".
[0004] The utility model provides a kind of light supplementing control circuit based on AR glasses code scanning, comprising: CPU connection end, camera connection end, first power connection end, second power connection end, sensor, latch, analog switch, light supplementing lamp power chip, light supplementing lamp, double triode and aiming lamp;
[0005] The CPU connection end is connected with sensor, latch and light supplementing lamp power chip respectively, the sensor is connected with latch, the latch is connected with analog switch, the analog switch is connected with camera connection end, light supplementing lamp power chip and double triode respectively, the light supplementing lamp power chip is connected with light supplementing lamp, and the double triode is connected with aiming lamp.
[0006] The first power connection end is connected with sensor, latch, analog switch and light supplementing lamp power chip respectively, and the second power connection end is connected with analog switch.
[0007] The sensor has twelve pins, the INT1 pin, the SCL pin and the SDA pin are connected with the CPU connection end respectively, the INT1 pin is also connected with a latch, the CS pin, the VDD pin and the VIO pin are connected with the first power connection end respectively, the SAO pin, the GND pin and the RES pin are grounded respectively, and the INT2 pin and the NC pin are suspended respectively.
[0008] The INT1 pin of the sensor is also connected with the first power connection end.
[0009] The latch has sixteen pins, the CLK pin is connected with the INT1 pin of the sensor, the 1K pin and the GND pin are grounded respectively, the 1J pin, the 1PREn pin and the VCC pin are connected with the first power connection end respectively, the 1Qn pin, the 2Qn pin, the 2Q pin, the 2PREn pin, the 2J pin, the 2K pin, the 2CLK pin and the 2CLRn pin are suspended respectively, the 1CLRn pin is connected with the CPU connection end, and the 1Q pin is connected with an analog switch.
[0010] The analog switch has ten pins, the S pin is connected with the camera connection end, the H1+ pin, the GND pin and the H2- pin are grounded respectively, the H2+ pin and the H1- pin are connected with the second power connection end respectively, the V+ pin is connected with the first power connection end, the OEN pin is connected with the 1Q pin of the latch, the D+ pin is connected with a light supplement lamp power chip, and the D- pin is connected with a double triode.
[0011] The light supplement lamp power chip has eight pins, the SW pin and the IN pin are connected with the first power connection end respectively, the OUT pin and the GND pin are grounded respectively, the STB pin is connected with the D+ pin of the analog switch through the ninth resistor, the SCL pin and the SDA pin are connected with the CPU connection end respectively, and the LED pin is connected with the light supplement lamp.
[0012] The double triode has six pins, the first pin and the fourth pin are grounded respectively, the fifth pin and the sixth pin are connected with the D- pin of the analog switch through the tenth resistor respectively, and the second pin and the third pin are connected with a sighting lamp.
[0013] The aiming lamp is a laser tube, has three pins, the first pin of the laser tube is connected with the third pin of the double triode, the third pin of the laser tube is connected with the second pin of the double triode, and the second pin of the laser tube is connected with the D-pin of the analog switch.
[0014] The light supplement control circuit based on the AR glasses code scanning provided by the utility model, through setting sensor and latch, using sensor identification trigger action, and then INT1 falling edge is latched through latch, even if the head continues to move, the latch still keeps effective level, triggers analog switch to open, simultaneously, CPU controls camera to start image collection work, in image collection process, light supplement lamp synchronizes exposure action of camera, light supplement lamp also alternately opens with aiming lamp, after decoding success, CPU will restore state of each hardware to initial stage, a set of logic down, realizes "zero key" trigger and completes "aiming→light supplement→exposure→close" complete timing. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing a simple introduction, obviously, below description in the drawing is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.
[0016] Fig. 1 It is the electrical diagram of the light supplement control circuit based on the AR glasses code scanning provided by the utility model;
[0017] Fig. 2 It is the circuit diagram of the light supplement control circuit based on the AR glasses code scanning provided by the utility model;
[0018] Fig. 3 It is the level high-low timing diagram of each hardware pin. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear, below will combine the drawing in the utility model, and the technical scheme in the utility model is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment.Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the range of protection of the utility model.
[0020] Below will combine Figs. 1-3The utility model discloses a kind of light supplementing control circuit based on AR glasses code scanning, the AR glasses is combined with traditional code scanning equipment, the camera, light supplementing lamp, sighting lamp etc.
[0021] A kind of light supplementing control circuit based on AR glasses code scanning, comprising: CPU connection end, camera connection end, first power connection end, second power connection end, sensor U1, latch U2, analog switch U3, light supplementing lamp power chip U4, light supplementing lamp F1, double triode U5 and sighting lamp M1;
[0022] CPU connection end is connected with sensor U1, latch U2, light supplementing lamp power chip U4 respectively, sensor U1 is connected with latch U2, latch U2 is connected with analog switch U3, analog switch U3 is connected with camera connection end, light supplementing lamp power chip U4, double triode U5 respectively, light supplementing lamp power chip U4 is connected with light supplementing lamp F1, double triode U5 is connected with sighting lamp M1;
[0023] First power connection end is connected with sensor U1, latch U2, analog switch U3, light supplementing lamp power chip U4 respectively;Second power connection end is connected with analog switch U3.
[0024] As its name implies, the CPU connection end mentioned above is used to be connected with CPU, and the CPU is placed in the device body;The camera connection end is used to be connected with camera, and the camera is installed on the AR glasses;The first power connection end is used to be connected with the first power, and the second power connection end is used to be connected with the second power, and the two power supplies are arranged on the device body.
[0025] In the embodiment, further, the model of sensor U1 is LIS2DW12TR, it has twelve pins, the INT1 pin, SCL pin, SDA pin of sensor U1 are connected with CPU connection end respectively, the INT1 pin is also connected with latch U2, the CS pin, VDD pin, VIO pin are connected with first power connection end respectively, the SAO pin, GND pin, RES pin are grounded respectively, the INT2 pin, NC pin are suspended respectively.It is worth noting that sensor U1 has two GND pins, and is grounded respectively.
[0026] Specifically, the INT1 pin of the sensor U2 is also connected with the first power connection end through the first resistor R1; the CS pin of the sensor U1 is connected with the first power connection end through the second resistor R2, the SAO pin of the sensor U1 is grounded through the third resistor R3, and the VDD pin and the VIO pin of the sensor U1 are both grounded through the first capacitor C1.
[0027] In the embodiment, further, the model of the latch U2 is SN74LVC112A_3, which has sixteen pins, the CLK pin of the latch U2 is connected with the INT1 pin of the sensor, the 1K pin and the GND pin are both grounded, the 1J pin, the 1PREn pin and the VCC pin are respectively connected with the first power connection end, the 1Qn pin, the 2Qn pin, the 2Q pin, the 2PREn pin, the 2J pin, the 2K pin, the 2CLK pin and the 2CLRn pin are all left floating, the 1CLRn pin is connected with the CPU connection end, and the 1Q pin is connected with the analog switch U3.
[0028] Specifically, the 1K pin of the latch U2 is grounded through the fourth resistor R4, the 1J pin and the 1PREn pin of the latch U2 are both connected with the first power connection end through the fifth resistor R5, and the VCC pin of the latch U2 is also grounded through the second capacitor C2.
[0029] In the embodiment, further, the model of the analog switch U3 is sgm7222, which has ten pins, the S pin of the analog switch U3 is connected with the camera connection end, the H1+ pin, the GND pin and the H2- pin are all grounded, the H2+ pin and the H1- pin are respectively connected with the second power connection end, the V+ pin is connected with the first power connection end, the OEN pin is connected with the 1Q pin of the latch U2, the D+ pin is connected with the light supplement lamp power chip U4, and the D- pin is connected with the dual triode U5.
[0030] Specifically, the H1+ pin of the analog switch U3 is grounded through the sixth resistor R6, the H2- pin of the analog switch U3 is grounded through the seventh resistor R7, and the V+ pin of the analog switch U3 is also grounded through the third capacitor C3.
[0031] In the embodiment, further, the model of the light supplement lamp power chip U4 is LM36010, which has eight pins, the SW pin and the IN pin of the light supplement lamp power chip U4 are respectively connected with the first power connection end, the OUT pin and the GND pin are both grounded, the STB pin is connected with the D+ pin of the analog switch U3 through the ninth resistor R9, the SCL pin and the SDA pin are respectively connected with the CPU connection end, and the LED pin is connected with the light supplement lamp F1.
[0032] Specifically, the OUT pin of the light supplement lamp power supply chip U4 is grounded through the fourth capacitor C4, the SW pin of the light supplement lamp power supply chip U4 is connected with the first power supply connection end through the first inductor L1, the IN pin of the light supplement lamp power supply chip U4 is also grounded through the fifth capacitor C5, and the STB pin of the light supplement lamp power supply chip U4 is also grounded through the eighth resistor R8.
[0033] In the embodiment, further, the model of the dual triode U5 is BC847BV, which has six pins, the first pin and the fourth pin of the dual triode U5 are grounded respectively, the fifth pin and the sixth pin of the dual triode U5 are connected with the D- pin of the analog switch U3 through the tenth resistor R10, and the second pin and the third pin of the dual triode U5 are connected with the aiming lamp M1 respectively. The dual triode U5 is equivalent to the driving circuit of the aiming lamp M1, and plays a role of controlling the switch of the aiming lamp M1.
[0034] Specifically, the fourth pin of the dual triode U5 is grounded through the eleventh resistor R11, and the second pin of the dual triode U5 is also grounded through the twelfth resistor R12.
[0035] In the embodiment, further, the aiming lamp M1 is a laser tube, which has three pins, the first pin (LD pin) of the laser tube is connected with the third pin of the dual triode, the third pin (PD pin) of the laser tube is connected with the second pin of the dual triode, and the second pin of the laser tube is connected with the D- pin of the analog switch U3.
[0036] In the initial state, the INT1 pin of the sensor U1 is maintained at a high level state by the first power supply; the 1CLRn pin of the latch U2 is maintained at a high level state by the CPU, the 1K pin of the latch U2 is kept at a constant low state, and the 1J pin of the latch U2 is kept at a constant high state by the first power supply;
[0037] The analog switch U3 is powered by the first power supply, and the OEN pin is the switch pin of the analog switch U3. When the OEN pin is at a low level, the analog switch U3 is in a closed state, and the pins cannot be connected with each other. When the OEN pin is at a high level, the analog switch U3 is in an open state, and the connection and switching between the pins are controlled by the S pin. Specifically, when the S pin is at a low level, the D+ pin is connected with the H1+ pin, and the D- pin is connected with the H1- pin. When the S pin is at a high level, the D+ pin is connected with the H2+ pin, and the D- pin is connected with the H2- pin.
[0038] The light supplement lamp power supply chip U4 is powered by the first power supply, and the STB pin is the switch pin of the light supplement lamp power supply chip U4. When the STB pin is at a high level, the light supplement lamp power supply chip U4 is in an open state, and the light supplement lamp F1 is turned on. When the STB pin is at a low level, the light supplement lamp power supply chip U4 is in a closed state, and the light supplement lamp F1 is turned off.
[0039] When no image is collected, the INT1 pin of the sensor U1 is in high level state, the CLK pin of the latch U2 is in high level state, the 1Q pin of the latch U2 is in low level state, and the OEN pin of the analog switch U3 is in low level state;
[0040] When the user triggers the sensor U1 with a specific action (such as turning his head and pausing for a while), the INT1 pin of the sensor U1 triggers a falling edge, and transmits the falling edge signal (low level signal) to the CLK pin of the latch U2 and the CPU, so that the CLK pin of the latch U2 becomes low level, and the 1Q pin of the latch U2 outputs high level, and the OEN pin of the analog switch U3 becomes high level, and the analog switch U3 is opened; at the same time, the CPU controls the camera to start image collection work, and when the camera continuously collects frame images, the STORBE signal is transmitted to the S pin of the analog switch U3 in a pulse manner, so that the level state of the S pin is distributed in a high-low pulse manner synchronously with the STORBE signal of the camera, when the S pin is in low level, the D+ pin is connected with the H1+ pin, the STB pin of the light supplement power supply chip U4 is in low level, the light supplement power supply chip U4 is in closed state, the light supplement lamp F1 is closed, and the D- pin is connected with the H1- pin, which is equivalent to that the double triode U5 is connected with the second power supply, and the aiming lamp M1 is opened, which is convenient for the staff to aim at the corresponding bar code; when the S pin is in high level, the D+ pin is connected with the H2+ pin, which is equivalent to that the STB pin of the light supplement power supply chip U4 is connected with the second power supply and kept in high level state, the light supplement power supply chip U4 is in opened state, and the light supplement lamp F1 is opened; and the D- pin is connected with the H2- pin, the double triode U5 is disconnected with the second power supply, and the aiming lamp M1 is closed.
[0041] When the camera collects images, the device main body decodes the images, and when the decoding is timed out or successful, the CPU controls the 1CLRn pin of the latch U2 to be in low level state, the latch U2 clears the low level state of the CLK pin, the 1Q pin cannot output high level, the analog switch U3 is closed, and the light supplement lamp F1 and the aiming lamp M1 are in sleep state; at the same time, the CPU controls the camera to stop collecting images, controls the sensor U1 and the latch U2 to return to the initial state, and waits for the next code scanning trigger.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A supplementary lighting control circuit based on AR glasses barcode scanning, characterized in that, include: CPU connector, camera connector, first power connector, second power connector, sensor, latch, analog switch, fill light power chip, fill light, dual transistors and aiming light; The CPU connection terminal is connected to the sensor, latch, and fill light power chip respectively. The sensor is connected to the latch. The latch is connected to the analog switch. The analog switch is connected to the camera connection terminal, fill light power chip, and dual transistors respectively. The fill light power chip is connected to the fill light. The dual transistors are connected to the aiming light. The first power connection terminal is connected to the sensor, latch, analog switch, and fill light power chip respectively; the second power connection terminal is connected to the analog switch.
2. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 1, characterized in that, The sensor has twelve pins. Its INT1, SCL, and SDA pins are connected to the CPU connection terminal, and the INT1 pin is also connected to the latch. The CS, VDD, and VIO pins are connected to the first power supply connection terminal, the SAO, GND, and RES pins are grounded, and the INT2 and NC pins are left floating.
3. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 2, characterized in that, The INT1 pin of the sensor is also connected to the first power supply terminal.
4. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 2, characterized in that, The latch has sixteen pins. Its CLK pin is connected to the INT1 pin of the sensor, the 1K pin and GND pin are grounded, the 1J pin, 1PREn pin and VCC pin are connected to the first power supply terminal, the 1Qn pin, 2Qn pin, 2Q pin, 2PREn pin, 2J pin, 2K pin, 2CLK pin and 2CLRn pin are left floating, the 1CLRn pin is connected to the CPU terminal, and the 1Q pin is connected to the analog switch.
5. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 4, characterized in that, The analog switch has ten pins. Its S pin is connected to the camera connection terminal, H1+ pin, GND pin, and H2- pin are grounded respectively, H2+ pin and H1- pin are connected to the second power supply connection terminal respectively, V+ pin is connected to the first power supply connection terminal, OEN pin is connected to the 1Q pin of the latch, D+ pin is connected to the fill light power chip, and D- pin is connected to the dual transistors.
6. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 5, characterized in that, The fill light power chip has eight pins. Its SW and IN pins are connected to the first power supply connection terminal, its OUT and GND pins are grounded, its STB pin is connected to the D+ pin of the analog switch through the ninth resistor, its SCL and SDA pins are connected to the CPU connection terminal, and its LED pin is connected to the fill light.
7. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 5, characterized in that, The dual transistor has six pins. Pins 1 and 4 are grounded, pins 5 and 6 are connected to the D-pin of the analog switch through the tenth resistor, and pins 2 and 3 are connected to the aiming lamp.
8. The supplementary lighting control circuit based on AR glasses barcode scanning according to claim 7, characterized in that, The aiming light is a laser tube with three pins. The first pin of the laser tube is connected to the third pin of the dual transistor, the third pin of the laser tube is connected to the second pin of the dual transistor, and the second pin of the laser tube is connected to the D-pin of the analog switch.