CN117518955A - Multipurpose code scanning gun access equipment control circuit - Google Patents

Multipurpose code scanning gun access equipment control circuit Download PDF

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Publication number
CN117518955A
CN117518955A CN202311784108.XA CN202311784108A CN117518955A CN 117518955 A CN117518955 A CN 117518955A CN 202311784108 A CN202311784108 A CN 202311784108A CN 117518955 A CN117518955 A CN 117518955A
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integrated circuit
pin
resistor
contact
capacitor
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CN202311784108.XA
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CN117518955B (en
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闫汉清
李钊
缑娟娟
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Gansu Tobacco Co Tianshui City Co
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Gansu Tobacco Co Tianshui City Co
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25257—Microcontroller

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The invention provides a control circuit of a multipurpose code scanning gun access device, which is divided into 6 functional modules, and comprises a main control module, a code scanning gun access module, a firmware program downloading module, a power module, a first data output module and a second data output module, wherein the control circuit specifically comprises integrated circuits U1-U6, capacitors C1-C15, resistors R1-R13, light emitting diodes D1-D3, a self-recovery fuse F1, an inductor L1, triodes Q1-Q2, a switch SW1, USB connectors USB1-USB4 and passive crystal oscillators X1-X3. The invention can further expand the application scene of the code scanning gun and enrich the functions of the code scanning gun; the circuit has simple structure, less number of devices, reliable structure, lower failure rate, simple operation and easy maintenance; compared with similar products with fewer functions, the invention has lower overall cost; after the invention is used, the code scanning work flow can be simplified, and the work efficiency can be improved.

Description

Multipurpose code scanning gun access equipment control circuit
Technical Field
The invention belongs to the technical field of embedded development, and particularly relates to a control circuit of a multi-purpose code scanning gun access device.
Background
As an important tool for acquiring one-dimensional/two-dimensional code information, the code scanning gun has wider application in the fields of product sales, industrial production and the like at present, and has more complex application scenes. In a general scene, an access mode that a code scanning gun is directly connected with data acquisition equipment (PC, cash register, smart phone and the like) is generally adopted. But in combination with the practical application requirement, application scenes such as one-time code scanning data distribution of different devices, classified transmission of the scanning data of different devices, simultaneous access of a plurality of code scanning guns to the same device, remote access of the code scanning guns to acquisition devices and the like are common. In combination with the actual market research, in order to meet different application scenes, some manufacturers develop some devices for accessing the code scanning gun, and in terms of device functions, the following two types of functions are mainly realized at present:
1. and the wireless access equipment of the wired code scanning gun. The device is mainly used for expanding the function of a wired code scanning gun and is remotely and wirelessly connected with data acquisition equipment.
2. One to two devices of the code scanning gun. The method is mainly used for respectively transmitting the data of the single code scanning gun to two devices.
The above functional implementation obviously cannot meet the requirements of complex application scenes.
Disclosure of Invention
In view of the above, the present invention aims to overcome the shortcomings of the prior art, and provides a control circuit for a multi-purpose code scanning gun access device, so as to solve the problem that the existing code scanning gun cannot meet the requirements of complex application scenes.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a control circuit of a multipurpose code scanning gun access device comprises integrated circuits U1-U6, capacitors C1-C15, resistors R1-R13, light emitting diodes D1-D3, a self-recovery fuse F1, an inductor L1, triodes Q1-Q2, a switch SW1, USB connectors USB1-USB4 and passive crystal oscillators X1-X3;
the pin 13 of the integrated circuit U1 is connected with the first end of the inductor L1, and the second end of the inductor L1 is respectively connected with the first ends of the 3.3V power supply network 3V3 and the capacitor C1; pin 7 of the integrated circuit U1 is respectively connected with pin 1 of the integrated circuit U4, a first end of a resistor R14, a first end of a capacitor C18 and a contact I of a switch SW1, and a second end of the resistor R14 is connected with a 3.3V power supply network 3V3; the pin 60 of the integrated circuit U1 is respectively connected with the first end of the resistor R1 and the first end of the resistor R10; pin 5 of the integrated circuit U1 is respectively connected with the first end of the capacitor C18 and the first end of the passive crystal oscillator X2; pin 6 of the integrated circuit U1 is respectively connected with a first end of a capacitor C15 and a second end of a passive crystal oscillator X2; pin 51 of the integrated circuit U1 is connected to a first end of resistor R12; pin 52 of the integrated circuit U1 is connected to a first end of resistor R13; pin 3 of the integrated circuit U1 is respectively connected with the first end of the capacitor C12 and the first end of the passive crystal oscillator X3; pin 4 of the integrated circuit U1 is respectively connected with a first end of the capacitor C13 and a second end of the passive crystal oscillator X3; pin 28 of the integrated circuit U1 is connected to a first end of resistor R2; pin 45 of the integrated circuit U1 is connected to the first end of the resistor R15 and the third contact of the USB connector USB3, respectively; pin 44 of the integrated circuit U1 is connected with USB3 contact II of the USB connector respectively; pin 43 of the integrated circuit U1 is connected to pin 2 of the integrated circuit U3; pin 42 of integrated circuit U1 is connected to pin 3 of integrated circuit U3; pin 17 of integrated circuit U1 is connected to pin 28 of integrated circuit U2; pin 16 of the integrated circuit U1 is connected to pin 27 of the integrated circuit U2; pin 18 and pin 12 of the integrated circuit U1 are simultaneously connected to the ground network GND;
pin 1 of the integrated circuit U2 is connected with the cathode of the light emitting diode D2, the anode of the light emitting diode D2 is connected with the first end of the resistor R5, and the second end of the resistor R5 is simultaneously connected with the second ends of the 3.3V power supply network 3V3 and the resistor R4; a pin 2 of the integrated circuit U2 is connected with the cathode of the light emitting diode D1, and the anode of the light emitting diode D1 is connected with the first end of the resistor R4; pin 29, pin 30, pin 31 and pin 32 of the integrated circuit U2 are respectively connected with a contact three, a contact two, a contact seven and a contact six of a USB connector USB4, and the contact one and the contact five of the USB connector USB4 are simultaneously connected to a 5V power supply network 5VA; pin 41 of the integrated circuit U2 is respectively connected with a 5V power supply network 5VA and a first end of a capacitor C8 at the same time; pin 42 and pin 45 of the integrated circuit U2 are simultaneously connected with the first end of the resistor R8 and the first end of the capacitor C4; pin 12 of the integrated circuit U2 is simultaneously connected to the ground network GND;
pin 5 and pin 6 of the integrated circuit U3 are respectively connected with a contact III and a contact II of the USB connector USB1, and the contact I of the USB connector USB1 is connected with a 5V power supply network 5V; pin 7 of the integrated circuit U3 is connected to the first end of the capacitor C2 and the first end of the passive crystal oscillator X1, respectively; pin 8 of the integrated circuit U3 is respectively connected with a first end of the capacitor C3 and a second end of the passive crystal oscillator X1; the pin 14 of the integrated circuit U3 is respectively connected with the emitter of the triode Q1 and the first end of the resistor R7, the second end of the resistor R7 is connected with the base electrode of the triode Q2, the emitter of the triode Q2 is connected with the 3.3V power supply network 3V3, and the collector of the triode Q2 is connected with the second end of the resistor R10; a pin 13 of the integrated circuit U3 is connected with a first end of a resistor R3, and a second end of the resistor R2 is connected with a base electrode of a triode Q1; pin 1 of the integrated circuit U3 is connected to the grounding network GND;
pin 1 of the integrated circuit U4 is connected with a second end of the resistor R9; pin 2 of the integrated circuit U4 is simultaneously connected with the collector of the triode Q1 and the first end of the resistor R6, and the second end of the resistor R6 is connected with the 3.3V power supply network 3V3; pin 3 of the integrated circuit U4 is connected with a first end of a capacitor C9; pin 4 of the integrated circuit U4 is connected with the second end of the capacitor C9, the anode of the integrated circuit switching diode U5 and the first end of the resistor R11 at the same time; the pin 5 of the integrated circuit U4 is connected with a 3.3V power supply network 3V3, the cathode of the integrated circuit switching diode U5 and the second end of the resistor R11 at the same time; pin 3 of the integrated circuit U4 is connected to the ground network GND;
pin 3 of the integrated circuit U6 is connected with a 5V power supply network 5VA, the positive electrode of a polar capacitor C10 and the first end of a capacitor C11 at the same time; pin 2 of the integrated circuit U4 is connected with a 3.3V power supply network 3V3, the positive electrode of a polar capacitor C16, the first end of a capacitor C17 and the first end of a resistor R16 at the same time, and the second end of the resistor R16 is connected with the positive electrode of a light emitting diode D3;
the USB2 contact of the USB connector is connected with a 3.3V power supply network 3V3; the second end of the USB2 contact second connecting resistor R12 of the USB connector; the USB2 contact of the USB connector is connected with the second end of the resistor R13 in a three-way mode;
the USB3 contact one of the USB connector is connected with a 5V power supply network 5V; the USB3 contact II of the USB connector is connected with the first end of the resistor R15, and the second end of the resistor R15 is connected with a 3.3V power supply network 3V;
the USB connector USB1 contact five, the contact six, the contact seven, the contact eight and the contact nine are simultaneously connected to the ground network GND; the USB2 contact IV, the contact five and the contact six of the USB connector are simultaneously connected to the grounding network GND; the USB3 contact IV, the contact five and the contact six of the USB connector are simultaneously connected to the grounding network GND; the USB connector USB4 contact IV, the contact eight, the contact nine, the contact ten, the contact eleven and the contact twelve are simultaneously connected to the ground network GND; the second end of the capacitor C1, the second end of the capacitor C2, the second end of the capacitor C3, the second end of the capacitor C4, the second end of the capacitor C5, the second end of the capacitor C6, the second end of the capacitor C7, the second end of the capacitor C8, the second end of the capacitor C12, the second end of the capacitor C13, the second end of the capacitor C14, and the second end of the capacitor C15 are simultaneously connected to the ground network GND; the second end of the resistor R1, the second end of the resistor R2 and the second end of the resistor R8 are simultaneously connected to the ground network GND; the second contact of the switch SW1 is connected to the ground network GND.
Further, the model of the integrated circuit U1 is STM32F103RCT6, the model of the integrated circuit U2 is CH9350L, the model of the integrated circuit U3 is CH340G, the model of the integrated circuit U4 is 74HC1G66GW, the model of the integrated circuit U5 is 1N4148, and the model of the integrated circuit U6 is AMS1117-3.3.
Further, the capacitance of the capacitors C1, C5, C7, C8, C11, C13, C17, C18 is 0.1uF, the capacitance of the capacitors C2, C3 is 22pF, the capacitance of the capacitor C4 is 3.3uF, the capacitance of the capacitors C6, C9 is 10uF, the capacitance of the capacitors C10, C16 is an electrolytic capacitance of the capacitors 47uF, and the capacitance of the capacitors C14, C15 is 20pF.
Further, the resistances of the resistors R1, R2, R6, R14 are 10kΩ, the resistances of the resistors R3, R9 are 2.7kΩ, the resistances of the resistors R4, R5, R8 are 3.3kΩ, the resistances of the resistors R7, R10, R15, R16 are 1kΩ, the resistances of the resistor R11 are 820kΩ, and the resistances of the resistors R12, R13 are 0.1kΩ.
Further, the light emitting diodes D1 and D2 are green light emitting diodes, and the light emitting diode D3 is a red light emitting diode.
Further, the maximum access voltage of the self-recovery fuse F1 is 13.2V, and the maximum allowable current is 500mA.
Further, the triode Q1 is a PNP triode, and the model S8050; the triode Q1 is an NPN triode, and the model is S8550.
Further, the impedance of the inductor L1 is 600 ohms at a frequency of 100 MHz.
Further, USB1 is the female seat of type-A type miniUSB, USB2 is the female seat of type-A type, USB3 is the public head of type-A type, USB4 is the female seat of type-A type double-interface.
Further, the vibration frequencies of the passive crystal oscillators X1, X2 and X3 are respectively 12MHz, 8MHz and 32.768kHz.
Compared with the prior art, the control circuit of the access equipment of the multipurpose code scanning gun has the following advantages:
1. the circuit can further expand the application scene of the code scanning gun and enrich the functions of the code scanning gun;
2. the circuit has the advantages of simple structure, less number of devices, reliable structure, lower failure rate, simple operation and easy maintenance;
3. compared with similar products with fewer functions, the invention has lower overall cost;
4. after the invention is used, the code scanning work flow can be simplified, and the work efficiency can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall circuit of a control circuit of a multipurpose code scanner access device according to the present invention;
FIG. 2 is a circuit diagram of a master control module of the present invention;
FIG. 3 is a circuit diagram of a code scanner access module of the present invention;
FIG. 4 is a circuit diagram of a firmware program download module according to the present invention;
FIG. 5 is a circuit diagram of a power module of the present invention;
FIG. 6 is a circuit diagram of a first data output module according to the present invention;
fig. 7 is a circuit diagram of a second data output module according to the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in FIG. 1, the invention provides a control circuit of a multi-purpose code scanning gun access device, which comprises integrated circuits U1-U6, capacitors C1-C15, resistors R1-R13, light emitting diodes D1-D3, a self-recovery fuse F1, an inductor L1, triodes Q1-Q2, a switch SW1, USB connectors USB1-USB4 and passive crystal oscillators X1-X3.
The invention divides the control circuit into 6 functional modules, including a main control module, a code scanning gun access module, a firmware program downloading module, a power module, a first data output module and a second data output module.
As shown in fig. 2, in the main control module, a pin 37 (13) of the integrated circuit U1 is connected to a first end of an inductor L1, and a second end of the inductor L1 is connected to a first end of a 3.3V power supply network 3V3 and a first end of a capacitor C1, respectively; pin 7 of the integrated circuit U1 is respectively connected with pin 1 of the integrated circuit U4, a first end of a resistor R14, a first end of a capacitor C18 and a contact I of a switch SW1, and a second end of the resistor R14 is connected with a 3.3V power supply network 3V3; the pin 60 of the integrated circuit U1 is respectively connected with the first end of the resistor R1 and the first end of the resistor R10; pin 5 of the integrated circuit U1 is respectively connected with the first end of the capacitor C18 and the first end of the passive crystal oscillator X2; pin 6 of the integrated circuit U1 is respectively connected with a first end of a capacitor C15 and a second end of a passive crystal oscillator X2; pin 51 of the integrated circuit U1 is connected to a first end of resistor R12; pin 52 of the integrated circuit U1 is connected to a first end of resistor R13; pin 3 of the integrated circuit U1 is respectively connected with the first end of the capacitor C12 and the first end of the passive crystal oscillator X3; pin 4 of the integrated circuit U1 is respectively connected with a first end of the capacitor C13 and a second end of the passive crystal oscillator X3; pin 28 of the integrated circuit U1 is connected to a first end of resistor R2; pin 45 of the integrated circuit U1 is connected to the first end of the resistor R15 and the third contact of the USB connector USB3, respectively; pin 44 of the integrated circuit U1 is connected with USB3 contact II of the USB connector respectively; pin 43 of the integrated circuit U1 is connected to pin 2 of the integrated circuit U3; pin 42 of integrated circuit U1 is connected to pin 3 of integrated circuit U3; pin 17 of integrated circuit U1 is connected to pin 28 of integrated circuit U2; pin 16 of the integrated circuit U1 is connected to pin 27 of the integrated circuit U2.
As shown in fig. 3, in the code scanning gun access module, a pin 1 of the integrated circuit U2 is connected to a cathode of a light emitting diode D2, an anode of the light emitting diode D2 is connected to a first end of a resistor R5, and a second end of the resistor R5 is simultaneously connected to a 3.3V power supply network 3V3 and a second end of a resistor R4; a pin 2 of the integrated circuit U2 is connected with the cathode of the light emitting diode D1, and the anode of the light emitting diode D1 is connected with the first end of the resistor R4; pin 29, pin 30, pin 31 and pin 32 of the integrated circuit U2 are respectively connected with a contact three, a contact two, a contact seven and a contact six of a USB connector USB4, and the contact one and the contact five of the USB connector USB4 are simultaneously connected to a 5V power supply network 5VA; pin 41 of the integrated circuit U2 is respectively connected with a 5V power supply network 5VA and a first end of a capacitor C8 at the same time; pins 42, 45 of the integrated circuit U2 are simultaneously connected to a first terminal of resistor R8 and to a first terminal of capacitor C4.
As shown in fig. 4, in the firmware program downloading module, pin 5 and pin 6 of the integrated circuit U3 are respectively connected with contact three and contact two of the USB connector USB1, and contact one of the USB connector USB1 is connected to a 5V power network 5V; pin 7 of the integrated circuit U3 is connected to the first end of the capacitor C2 and the first end of the passive crystal oscillator X1, respectively; pin 8 of the integrated circuit U3 is respectively connected with a first end of the capacitor C3 and a second end of the passive crystal oscillator X1; the pin 14 of the integrated circuit U3 is respectively connected with the emitter of the triode Q1 and the first end of the resistor R7, the second end of the resistor R7 is connected with the base electrode of the triode Q2, the emitter of the triode Q2 is connected with the 3.3V power supply network 3V3, and the collector of the triode Q2 is connected with the second end of the resistor R10; pin 13 of the integrated circuit U3 is connected with a first end of a resistor R3, and a second end of the resistor R2 is connected with a base electrode of a triode Q1. Pin 1 of the integrated circuit U4 is connected with a second end of the resistor R9; pin 2 of the integrated circuit U4 is simultaneously connected with the collector of the triode Q1 and the first end of the resistor R6, and the second end of the resistor R6 is connected with the 3.3V power supply network 3V3; pin 3 of the integrated circuit U4 is connected with a first end of a capacitor C9; pin 4 of the integrated circuit U4 is connected with the second end of the capacitor C9, the anode of the integrated circuit switching diode U5 and the first end of the resistor R11 at the same time; pin 5 of the integrated circuit U4 is connected to the 3.3V power network 3V3, the cathode of the integrated circuit switching diode U5 and the second end of the resistor R11.
As shown in fig. 5, in the power module, the pin 3 of the integrated circuit U6 is connected to the 5V power network 5VA, the positive electrode of the polarity capacitor C10, and the first end of the capacitor C11 at the same time; pin 2 of the integrated circuit U4 is connected to a 3.3V power supply network 3V3, the positive electrode of a polar capacitor C16, the first end of a capacitor C17 and the first end of a resistor R16, and the second end of the resistor R16 is connected with the positive electrode of a light emitting diode D3.
As shown in fig. 6, in one of the data output modules, the USB connector USB2 contact one is connected to the 3.3V power network 3V3; the second end of the USB2 contact second connecting resistor R12 of the USB connector; the USB connector USB2 contact is connected with the second end of the resistor R13.
As shown in fig. 7, in the second data output module, the first USB connector USB3 contact is connected to the 5V power network 5V; the USB3 contact II of the USB connector is connected with the first end of the resistor R15, and the second end of the resistor R15 is connected with the 3.3V power supply network 3V3.
The invention also comprises a grounding network, wherein the pins 18 and 12 of the integrated circuit U1 are simultaneously connected to the grounding network GND; pin 12 of the integrated circuit U2 is simultaneously connected to the ground network GND; pin 1 of the integrated circuit U3 is connected to the grounding network GND; pin 3 of the integrated circuit U4 is connected to the ground network GND; the USB connector USB1 contact five, the contact six, the contact seven, the contact eight and the contact nine are simultaneously connected to the ground network GND; the USB2 contact IV, the contact five and the contact six of the USB connector are simultaneously connected to the grounding network GND; the USB3 contact IV, the contact five and the contact six of the USB connector are simultaneously connected to the grounding network GND; the USB connector USB4 contact IV, the contact eight, the contact nine, the contact ten, the contact eleven and the contact twelve are simultaneously connected to the ground network GND; the second end of the capacitor C1, the second end of the capacitor C2, the second end of the capacitor C3, the second end of the capacitor C4, the second end of the capacitor C5, the second end of the capacitor C6, the second end of the capacitor C7, the second end of the capacitor C8, the second end of the capacitor C12, the second end of the capacitor C13, the second end of the capacitor C14, and the second end of the capacitor C15 are simultaneously connected to the ground network GND; the second end of the resistor R1, the second end of the resistor R2 and the second end of the resistor R8 are simultaneously connected to the ground network GND; the second contact of the switch SW1 is connected to the ground network GND.
Specifically, in the present invention, the model of the integrated circuit U1 is STM32F103RCT6, the model of the integrated circuit U2 is CH9350L, the model of the integrated circuit U3 is CH340G, the model of the integrated circuit U4 is 74HC1G66GW, the model of the integrated circuit U5 is 1N4148, and the model of the integrated circuit U6 is AMS1117-3.3
Specifically, in the present invention, the capacitance of the capacitors C1, C5, C7, C8, C11, C13, C17, and C18 is 0.1uF, the capacitance of the capacitors C2, C3 is 22pF, the capacitance of the capacitor C4 is 3.3uF, the capacitance of the capacitors C6, C9 is 10uF, the capacitance of the capacitors C10, C16 is an electrolytic capacitance of 47uF, and the capacitance of the capacitors C14, C15 is 20pF.
Specifically, in the present invention, the resistance values of the resistors R1, R2, R6, R14 are 10kΩ, the resistance values of the resistors R3, R9 are 2.7kΩ, the resistance values of the resistors R4, R5, R8 are 3.3kΩ, the resistance values of the resistors R7, R10, R15, R16 are 1kΩ, the resistance value of the resistor R11 is 820kΩ, and the resistance values of the resistors R12, R13 are 0.1kΩ.
Specifically, in the present invention, the light emitting diodes D1 and D2 are green light emitting diodes, and the light emitting diode D3 is a red light emitting diode.
Specifically, in the invention, the maximum access voltage of the self-recovery fuse F1 is 13.2V, and the maximum allowable current is 500mA.
Specifically, in the present invention, the triode Q1 is a PNP type triode, and the model S8050; the triode Q1 is an NPN triode, and the model is S8550.
Specifically, in the present invention, the inductance L1 has an impedance of 600 ohms at a frequency of 100 MHz.
Specifically, in the invention, the USB1 is a type-A miniUSB female socket, the USB2 is a type-A female socket, the USB3 is a type-A male head, and the USB4 is a type-A double-interface female socket.
Specifically, in the invention, the vibration frequencies of the passive crystal oscillators X1, X2 and X3 are respectively 12MHz, 8MHz and 32.768kHz.
When the circuit is used, firstly, program firmware with different functions is written in by using a PC through a firmware program downloading module according to the requirements of application scenes, and according to different application scenes, a first data output module and a second data output module can be respectively connected into different data acquisition devices or can be singly connected into a single device through a certain interface; the code scanning gun access module is connected with the HID protocol code scanning gun, after the code scanning gun obtains bar code data, the data are transmitted to the main control module, and the main control module selectively transmits the data to the corresponding output module and outputs the data to the corresponding data acquisition equipment after judging and identifying the data content according to different functional firmware programs.
According to the invention, the HID code scanning gun is used as access equipment, related functions are expanded through an equipment circuit, so that different application scene requirements are met, scanning data can be simultaneously output through two interfaces, under the condition that power is supplied by a data output module II, the data output module I is wirelessly accessed to remote equipment, under the condition that the data acquisition equipment I is insufficient in interface, the number of the code scanning gun interfaces can be expanded, under the condition that the data output module I adopts an HID protocol, the code scanning gun data can be simultaneously transmitted to a plurality of data acquisition equipment through a plurality of equipment in series connection, under the condition that the data output module I adopts the HID protocol, the data with specific rules or specific data acquired by the code scanning gun can be accurately transmitted to 1 of the plurality of data acquisition equipment through the plurality of equipment in series connection in a ring shape.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. A multipurpose sweep sign indicating number rifle access equipment control circuit which characterized in that: the self-recovery fuse comprises integrated circuits U1-U6, capacitors C1-C15, resistors R1-R13, light emitting diodes D1-D3, a self-recovery fuse F1, an inductor L1, triodes Q1-Q2, a switch SW1, USB connectors USB1-USB4 and passive crystal oscillators X1-X3;
the pin 13 of the integrated circuit U1 is connected with the first end of the inductor L1, and the second end of the inductor L1 is respectively connected with the first ends of the 3.3V power supply network 3V3 and the capacitor C1; pin 7 of the integrated circuit U1 is respectively connected with pin 1 of the integrated circuit U4, a first end of a resistor R14, a first end of a capacitor C18 and a contact I of a switch SW1, and a second end of the resistor R14 is connected with a 3.3V power supply network 3V3; the pin 60 of the integrated circuit U1 is respectively connected with the first end of the resistor R1 and the first end of the resistor R10; pin 5 of the integrated circuit U1 is respectively connected with the first end of the capacitor C18 and the first end of the passive crystal oscillator X2; pin 6 of the integrated circuit U1 is respectively connected with a first end of a capacitor C15 and a second end of a passive crystal oscillator X2; pin 51 of the integrated circuit U1 is connected to a first end of resistor R12; pin 52 of the integrated circuit U1 is connected to a first end of resistor R13; pin 3 of the integrated circuit U1 is respectively connected with the first end of the capacitor C12 and the first end of the passive crystal oscillator X3; pin 4 of the integrated circuit U1 is respectively connected with a first end of the capacitor C13 and a second end of the passive crystal oscillator X3; pin 28 of the integrated circuit U1 is connected to a first end of resistor R2; pin 45 of the integrated circuit U1 is connected to the first end of the resistor R15 and the third contact of the USB connector USB3, respectively; pin 44 of the integrated circuit U1 is connected with USB3 contact II of the USB connector respectively; pin 43 of the integrated circuit U1 is connected to pin 2 of the integrated circuit U3; pin 42 of integrated circuit U1 is connected to pin 3 of integrated circuit U3; pin 17 of integrated circuit U1 is connected to pin 28 of integrated circuit U2; pin 16 of the integrated circuit U1 is connected to pin 27 of the integrated circuit U2; pin 18 and pin 12 of the integrated circuit U1 are simultaneously connected to the ground network GND;
pin 1 of the integrated circuit U2 is connected with the cathode of the light emitting diode D2, the anode of the light emitting diode D2 is connected with the first end of the resistor R5, and the second end of the resistor R5 is simultaneously connected with the second ends of the 3.3V power supply network 3V3 and the resistor R4; a pin 2 of the integrated circuit U2 is connected with the cathode of the light emitting diode D1, and the anode of the light emitting diode D1 is connected with the first end of the resistor R4; pin 29, pin 30, pin 31 and pin 32 of the integrated circuit U2 are respectively connected with a contact three, a contact two, a contact seven and a contact six of a USB connector USB4, and the contact one and the contact five of the USB connector USB4 are simultaneously connected to a 5V power supply network 5VA; pin 41 of the integrated circuit U2 is respectively connected with a 5V power supply network 5VA and a first end of a capacitor C8 at the same time; pin 42 and pin 45 of the integrated circuit U2 are simultaneously connected with the first end of the resistor R8 and the first end of the capacitor C4; pin 12 of the integrated circuit U2 is simultaneously connected to the ground network GND;
pin 5 and pin 6 of the integrated circuit U3 are respectively connected with a contact III and a contact II of the USB connector USB1, and the contact I of the USB connector USB1 is connected with a 5V power supply network 5V; pin 7 of the integrated circuit U3 is connected to the first end of the capacitor C2 and the first end of the passive crystal oscillator X1, respectively; pin 8 of the integrated circuit U3 is respectively connected with a first end of the capacitor C3 and a second end of the passive crystal oscillator X1; the pin 14 of the integrated circuit U3 is respectively connected with the emitter of the triode Q1 and the first end of the resistor R7, the second end of the resistor R7 is connected with the base electrode of the triode Q2, the emitter of the triode Q2 is connected with the 3.3V power supply network 3V3, and the collector of the triode Q2 is connected with the second end of the resistor R10; a pin 13 of the integrated circuit U3 is connected with a first end of a resistor R3, and a second end of the resistor R2 is connected with a base electrode of a triode Q1; pin 1 of the integrated circuit U3 is connected to the grounding network GND;
pin 1 of the integrated circuit U4 is connected with a second end of the resistor R9; pin 2 of the integrated circuit U4 is simultaneously connected with the collector of the triode Q1 and the first end of the resistor R6, and the second end of the resistor R6 is connected with the 3.3V power supply network 3V3; pin 3 of the integrated circuit U4 is connected with a first end of a capacitor C9; pin 4 of the integrated circuit U4 is connected with the second end of the capacitor C9, the anode of the integrated circuit switching diode U5 and the first end of the resistor R11 at the same time; the pin 5 of the integrated circuit U4 is connected with a 3.3V power supply network 3V3, the cathode of the integrated circuit switching diode U5 and the second end of the resistor R11 at the same time; pin 3 of the integrated circuit U4 is connected to the ground network GND;
pin 3 of the integrated circuit U6 is connected with a 5V power supply network 5VA, the positive electrode of a polar capacitor C10 and the first end of a capacitor C11 at the same time; pin 2 of the integrated circuit U4 is connected with a 3.3V power supply network 3V3, the positive electrode of a polar capacitor C16, the first end of a capacitor C17 and the first end of a resistor R16 at the same time, and the second end of the resistor R16 is connected with the positive electrode of a light emitting diode D3;
the USB2 contact of the USB connector is connected with a 3.3V power supply network 3V3; the second end of the USB2 contact second connecting resistor R12 of the USB connector; the USB2 contact of the USB connector is connected with the second end of the resistor R13 in a three-way mode;
the USB3 contact one of the USB connector is connected with a 5V power supply network 5V; the USB3 contact II of the USB connector is connected with the first end of the resistor R15, and the second end of the resistor R15 is connected with a 3.3V power supply network 3V;
the USB connector USB1 contact five, the contact six, the contact seven, the contact eight and the contact nine are simultaneously connected to the ground network GND; the USB2 contact IV, the contact five and the contact six of the USB connector are simultaneously connected to the grounding network GND; the USB3 contact IV, the contact five and the contact six of the USB connector are simultaneously connected to the grounding network GND; the USB connector USB4 contact IV, the contact eight, the contact nine, the contact ten, the contact eleven and the contact twelve are simultaneously connected to the ground network GND; the second end of the capacitor C1, the second end of the capacitor C2, the second end of the capacitor C3, the second end of the capacitor C4, the second end of the capacitor C5, the second end of the capacitor C6, the second end of the capacitor C7, the second end of the capacitor C8, the second end of the capacitor C12, the second end of the capacitor C13, the second end of the capacitor C14, and the second end of the capacitor C15 are simultaneously connected to the ground network GND; the second end of the resistor R1, the second end of the resistor R2 and the second end of the resistor R8 are simultaneously connected to the ground network GND; the second contact of the switch SW1 is connected to the ground network GND.
2. The multipurpose code scanner access device control circuit of claim 1, wherein: the model of the integrated circuit U1 is STM32F103RCT6, the model of the integrated circuit U2 is CH9350L, the model of the integrated circuit U3 is CH340G, the model of the integrated circuit U4 is 74HC1G66GW, the model of the integrated circuit U5 is 1N4148, and the model of the integrated circuit U6 is AMS1117-3.3.
3. The multipurpose code scanner access device control circuit of claim 1, wherein: the capacitance of the capacitors C1, C5, C7, C8, C11, C13, C17, C18 is 0.1uF, the capacitance of the capacitors C2, C3 is 22pF, the capacitance of the capacitor C4 is 3.3uF, the capacitance of the capacitors C6, C9 is 10uF, the capacitance of the capacitors C10, C16 is an electrolytic capacitance of 47uF, and the capacitance of the capacitors C14, C15 is 20pF.
4. The multipurpose code scanner access device control circuit of claim 1, wherein: the resistances of the resistors R1, R2, R6, R14 are 10kΩ, the resistances of the resistors R3, R9 are 2.7kΩ, the resistances of the resistors R4, R5, R8 are 3.3kΩ, the resistances of the resistors R7, R10, R15, R16 are 1kΩ, the resistance of the resistor R11 is 820kΩ, and the resistances of the resistors R12, R13 are 0.1kΩ.
5. The multipurpose code scanner access device control circuit of claim 1, wherein: the light emitting diodes D1 and D2 are green light emitting diodes, and the light emitting diode D3 is a red light emitting diode.
6. The multipurpose code scanner access device control circuit of claim 1, wherein: the maximum access voltage of the self-recovery fuse F1 is 13.2V, and the maximum allowable current is 500mA.
7. The multipurpose code scanner access device control circuit of claim 1, wherein: the triode Q1 is a PNP triode, and the model S8050; the triode Q1 is an NPN triode, and the model is S8550.
8. The multipurpose code scanner access device control circuit of claim 1, wherein: the inductance L1 has an impedance of 600 ohms at a frequency of 100 MHz.
9. The multipurpose code scanner access device control circuit of claim 1, wherein: USB1 is the female seat of type-A type miniUSB, USB2 is the female seat of type-A type, USB3 is the public head of type-A type, USB4 is the female seat of type-A type double-interface.
10. The multipurpose code scanner access device control circuit of claim 1, wherein: the vibration frequencies of the passive crystal oscillators X1, X2 and X3 are respectively 12MHz, 8MHz and 32.768kHz.
CN202311784108.XA 2023-12-22 2023-12-22 Multipurpose code scanning gun access equipment control circuit Active CN117518955B (en)

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