A portable field optoelectronic conversion communication device

Abstract

This utility model discloses a portable field optoelectronic conversion communication device, including a metal casing and a circuit board disposed within the metal casing. The circuit board integrates an optoelectronic conversion module, a built-in power supply module, and an interface module. The optoelectronic conversion module, integrated on the circuit board, is used to convert optical signals to electrical signals and transmit data. The built-in power supply module is electrically connected to the circuit board to provide power to the device. The interface module is disposed on the casing and electrically connected to the circuit board, and includes at least one interface adapted to a field optical cable connector. The device in this utility model has a built-in lithium battery, eliminating reliance on an external power source. Its interface is compatible with field optical cables, supporting both Type-C and RJ45, eliminating the need for adapters and enabling efficient deployment. Through multi-stage filtering and power supply isolation, it has strong resistance to electromagnetic interference. LED lights intuitively display the power and communication status, and troubleshooting requires no specialized instruments, making maintenance convenient. It fully meets the needs of stable communication and rapid response in field scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of optical communication technology, specifically a portable field optoelectronic conversion communication device. Background Technology

[0002] In the field of optical communication technology, photoelectric conversion equipment (such as fiber optic transceivers) is the core device for realizing bidirectional conversion between optical and electrical signals, and is widely used in data transmission scenarios. However, existing technologies have the following drawbacks, making them unsuitable for the special application scenario of field operations:

[0003] While conventional fiber optic transceivers on the market are technically mature, they lack high tensile strength and cannot withstand the pulling and vibration in field environments. Furthermore, their interfaces are only compatible with general-purpose fiber optic connectors, which are incompatible with field-specific fiber optic connectors, requiring additional adapters and increasing deployment complexity. In addition, these devices rely on external power supplies, and the lack of stable power access points in field scenarios results in poor device mobility.

[0004] Current optoelectronic conversion systems designed for field scenarios typically consist of three parts: a field optical transceiver, a field optical cable, and connectors. Among these, the field optical transceiver, as the core conversion unit, suffers from large size and heavy weight, making it difficult for a single person to carry and meet the needs of rapid deployment in the field. Furthermore, these transceivers also require external power sources (such as battery packs or generators), further increasing the amount of equipment to carry and deployment time, posing a significant disadvantage in emergency communication scenarios (such as temporary battlefield command and disaster relief).

[0005] In summary, existing technologies cannot simultaneously meet the core requirements of ultra-portability, built-in power supply, compatibility with field optical cables, and stable communication in field scenarios. There is an urgent need for a portable field optoelectronic conversion communication device with a compact structure and integrated functions to solve the above-mentioned technical pain points. Utility Model Content

[0006] The purpose of this utility model is to provide a portable field optoelectronic conversion communication device to solve the problem in the prior art mentioned in the background that the device interface is incompatible with field optical cable connectors, requiring additional adapters and affecting deployment efficiency.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A portable field optoelectronic conversion communication device includes a metal casing and a circuit board disposed inside the metal casing. The circuit board integrates an optoelectronic conversion module, a built-in power supply module, and an interface module.

[0009] The photoelectric conversion module is integrated on the circuit board to realize the conversion of optical signals to electrical signals and data transmission; the built-in power supply module is a built-in battery, which is electrically connected to the circuit board to provide power for the device; the interface module is located on the housing and electrically connected to the circuit board, and the interface module includes at least one interface adapted to the field optical cable connector.

[0010] According to the above technical solution, the circuit structure of the built-in power supply module includes:

[0011] The voltage regulator chip U1 has pins 1 and 2 connected to one end of capacitors C2 and C3 and the power supply. The other end of capacitor C2 is connected to the other end of capacitor C3, one end of capacitor C4 and one end of capacitor C5.

[0012] The other ends of capacitors C4 and C5 are connected to pins 5 and 6 of U1 and the battery, respectively.

[0013] Pins 3, 4, and 7 of U1 are all grounded; capacitors C2, C3, C4, and C5 are all grounded.

[0014] According to the above technical solution, the main circuit of the photoelectric conversion module includes the main chip U2;

[0015] Pins 1, 2, 3, and 4 of U2 are connected to the interface module; pin 5 of U2 is connected to one end of resistor R18, and the other end of resistor R18 is grounded; pins 6, 7, 8, 11, 14, 19, 20, 21, 22, 28, 34, 35, and 40 of U2 are connected to the power supply; pins 9, 10, 12, and 13 of U2 are connected to the power supply isolation circuit of the interface module.

[0016] Pin 15 of U2 is connected to one end of resistor R15, and the other end of resistor R15 is connected to the power supply.

[0017] Pins 16 and 41 of U2 are grounded;

[0018] Pins 17 and 18 of U2 are both connected to one end of inductor L4, and the other end of inductor L4 is connected to the power supply.

[0019] Pin 29 of U2 is connected to pin 3 of crystal oscillator X1 and one end of capacitor C8, and the other end of capacitor C8 is connected to pin 2 of crystal oscillator X1; both capacitor C8 and pin 3 of crystal oscillator X1 are grounded.

[0020] Pin 30 of U2 is connected to pin 1 of crystal oscillator X1 and one end of capacitor C7, and the other end of capacitor C7 is connected to pin 4 of crystal oscillator X1; both capacitor C7 and pin 1 of crystal oscillator X1 are grounded.

[0021] Pin 33 of U2 is connected to the reset circuit; pins 36, 37, 38 and 39 of U2 are all connected to the interface module.

[0022] According to the above technical solution, the circuit structure of the interface module includes a TYPE-C interface and an RJ1 interface;

[0023] The A12 pin of the TYPE-C interface is connected to one end of resistor R1 and resistor R3 respectively. The other end of resistor R1 is connected to the B5 pin of the TYPE-C interface, and the other end of resistor R3 is connected to the A5 pin of the TYPE-C interface. The A12 pin, pin 7 of the TYPE-C interface, resistor R1 and resistor R3 are all grounded.

[0024] The A9 and B9 pins of the TYPE-C interface are both connected to the battery; the B12 pin of the TYPE-C interface is grounded.

[0025] The P2, P3, P4 and P7 pins of the RJ1 interface are connected to pins 36, 37, 38 and 39 of the U2 interface, respectively.

[0026] The P5, P6, P8 and P9 pins of the RJ1 interface are connected to pins 1, 2, 3 and 4 of the U2 interface, respectively.

[0027] The P1 pin of the RJ1 interface is connected to one end of capacitor C6, and the other end of capacitor C6 is grounded.

[0028] According to the above technical solution, the photoelectric conversion module also includes a status indicator circuit, which includes diodes LED1, LED2, LED3, LED4 and LED5.

[0029] Pin 23 of U2 is connected to resistor R19 and one end of diode LED2, with the other end of diode LED2 connected to one end of resistor R9; pin 24 of U2 is connected to resistor R7 and one end of diode LED3, with the other end of diode LED3 connected to resistor R10; pin 25 of U2 is connected to resistor R6 and one end of diode LED4, with the other end of diode LED4 connected to resistor R11; pin 26 of U2 is connected to resistor R5 and one end of diode LED5, with the other end of diode LED5 connected to resistor R12; the other ends of resistors R9, R10, R11, and R12 are all connected to the power supply; the other ends of resistors R19, R7, R6, and R5 are all connected to the power supply.

[0030] Pin 27 of U2 is connected to diode LED1 and one end of resistor R4. The other end of diode LED1 is connected to one end of resistor R8, and the other end of resistor R8 is grounded. The other end of resistor R4 is grounded.

[0031] According to the above technical solution, the photoelectric conversion module also includes a reset circuit; the reset circuit includes a reset button SW1, a resistor R2 and a capacitor C1. Pin 1 of SW1 is connected to one end of capacitor C1, pin 2 of SW1 is connected to pin 33 of U2, the other end of capacitor C1 and one end of resistor R2 respectively, and the other end of resistor R2 is connected to the power supply; pin 1 of SW1 and capacitor C1 are both grounded.

[0032] According to the above technical solution, the interface module also includes a power supply isolation circuit, which includes an isolation chip U3;

[0033] Pin 1 of U3 is grounded; pin 2 of U3 is connected to pin 12 of U2; pin 3 of U3 is connected to pin 13 of U2; pin 4 of U3 is connected to one end of diode LED6; and the other end of diode LED6 is grounded.

[0034] Pins 5 and 6 of U3 are used to independently power the interface module; pin 7 of U3 is connected to pin 9 of U2, one end of resistor R14, and one end of resistor R17; the other end of resistor R14 is connected to the power supply and one end of resistor R13.

[0035] Pin 8 of U3 is connected to pin 10 of U2, the other end of resistor R13, and one end of resistor R16; the other end of resistor R16 is connected to the other end of resistor R17.

[0036] Both resistors R16 and R17 are grounded.

[0037] According to the above technical solution, capacitors C12 and C13 are connected in parallel on the circuit that supplies power to the interface module on pins 5 and 6 of U3; one end of capacitor C12 is connected to one end of capacitor C13 and the power supply respectively; the other ends of capacitors C12 and C13 are both grounded.

[0038] According to the above technical solution, the power supply circuit of the photoelectric conversion module is also equipped with capacitors C9, C10 and C11, which are used for power supply decoupling and noise isolation of the photoelectric conversion module; one end of capacitor C9 is connected to the power supply, one end of capacitor C10 and one end of capacitor C11 respectively; the other end of capacitors C9, C10 and C11 are all grounded.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] In this invention, the built-in lithium battery eliminates the reliance on an external power source, the interface is compatible with field optical cables, and it supports both TYPE-C and RJ45, eliminating the need for adapters and enabling efficient deployment. Through multi-level filtering and power supply isolation, it has strong resistance to electromagnetic interference, and the LED lights intuitively display the power and communication status. Troubleshooting does not require professional instruments, making maintenance convenient and fully meeting the needs of stable communication and rapid response in field scenarios. Attached Figure Description

[0041] Figure 1 This is the circuit diagram of the photoelectric conversion module of this utility model;

[0042] Figure 2 This is the circuit diagram of the built-in power supply module of this utility model;

[0043] Figure 3 This is a power supply isolation circuit diagram for the interface module of this utility model;

[0044] Figure 4 This is the circuit diagram of the RJ1 interface of this utility model;

[0045] Figure 5 This is the TYPE-C circuit diagram of this utility model;

[0046] Figure 6 This is the reset circuit diagram of this utility model;

[0047] Figure 7 This is the circuit diagram of the filter circuit of this utility model. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] Example 1

[0050] like Figures 1 to 7 As shown, a portable field optoelectronic conversion communication device includes a device body, which consists of a metal casing and a circuit board fixed inside the metal casing. The circuit board integrates an optoelectronic conversion module, a built-in power supply module, and an interface module. The three are electrically connected through wires or PCB wiring to jointly realize a complete functional link for power supply signal conversion and communication transmission. The specific structure is as follows:

[0051] The metal casing is made of aluminum alloy with a conductive anodizing treatment on the outer surface, which improves corrosion resistance and serves as an electromagnetic shielding layer. The interior of the casing forms a closed cavity filled with thermally conductive potting compound (such as EP-45HT epoxy resin potting compound) to encapsulate the circuit board and various module components, achieving IP65 waterproof and dustproof performance. At the same time, the thermally conductive potting compound conducts the heat generated by the components to the metal casing, ensuring stable operation of the equipment within a temperature range of -20℃ to 60℃. In addition, the metal casing is directly connected to the ground plane with the window on the circuit board through a metal spring, forming a grounding loop, effectively suppressing electromagnetic interference (EMI) and ensuring communication stability in strong electromagnetic environments in the field.

[0052] The built-in power supply module provides the device with an independent and stable power supply. The core of the module is an integrated structure of a built-in battery and a voltage regulator circuit. The specific circuit is as follows:

[0053] Built-in battery: Uses a rechargeable lithium battery with a capacity of 2000mAh-5000mAh and a nominal voltage of 3.7V; adopts a DW01+8205A dual-chip solution, with the VDD pin of DW01 connected to the positive terminal of the lithium battery and the DO / CO pin connected to the G terminal of 8205A to achieve overcharge (4.35V), over-discharge (2.4V), and overcurrent protection.

[0054] Voltage regulator chip U1: such as Figure 2As shown, U1 is a low-dropout voltage regulator chip. Its pins 1 and 2 are electrically connected to one end of capacitor C2 (100nF) and capacitor C3 (10uF) and the positive terminal of the built-in battery. Capacitors C2 and C3 are connected in parallel between the positive terminal of the battery and ground to filter out high-frequency noise in the battery output voltage. The other end of capacitor C2 is connected to the other end of capacitor C3, one end of capacitor C4 (100nF) and capacitor C5 (10uF). The other ends of capacitors C4 and C5 are electrically connected to pins 5 and 6 of U1 and the negative terminal of the built-in battery, forming a secondary filter to further stabilize the voltage input to U1.

[0055] Regulated output: Pins 3, 4, and 7 of U1 are all grounded. The internal voltage regulator circuit converts the 3.7V battery voltage into two stable voltages: one is VCC_3.3V (supplying the digital circuit and interface module of the photoelectric conversion module), and the other is VCC_1.0V (supplying the analog circuit of the photoelectric conversion module). Capacitors C2, C3, C4, and C5 are all ceramic capacitors. By matching high and low capacitance values ​​(100nF to filter high frequencies and 10uF to filter medium and low frequencies), the input / output voltage ripple of the voltage regulator chip is ensured to be ≤5mV, guaranteeing stable power supply to the core module.

[0056] like Figure 1 As shown, the photoelectric conversion module is the core component for bidirectional conversion between optical and electrical signals. Integrated in the central area of ​​the circuit board, it uses the main chip U2 as its core, along with a crystal oscillator, reset circuit, and status indicator circuit, to achieve high-fidelity signal conversion and operational status monitoring. The specific circuit structure is as follows:

[0057] U2 is a dedicated optoelectronic conversion chip that supports 10 / 100 / 1000Base-T Ethernet protocol and optical signal decoding. Its pin connections and functions are as follows:

[0058] Power supply pins: Pins 6, 7, 8, 11, 14, 19, 20, 21, 22, 28, 34, 35, and 40 of U2 are all connected to the power supply. Pins 6, 8, 11, 22, 34, and 40 are electrically connected to VCC_1.0V, while pins 7, 14, 19, 20, 21, 8, and 35 are electrically connected to VCC_3.3V, supplying power to the chip's digital circuitry. Pins 17 and 18 of U2 are both connected to one end of inductor L4 (2.2μH inductance), and the other end of inductor L4 is electrically connected to VCC_1.0V. Inductor L4 is used to suppress analog power supply noise, providing a clean power supply for the chip's internal analog circuits such as optical signal detection and amplification.

[0059] Grounding pins: Pins 16 and 41 of U2 are digital ground terminals (GNDT), which are directly connected to the common ground of the circuit board; the analog circuit grounding is achieved through internal isolation design of the chip to avoid digital noise interfering with the analog signal.

[0060] Clock circuit: Pin 29 of U2 is connected to pin 3 of crystal oscillator X1 and one end of capacitor C8 (10pF). The other end of capacitor C8 is connected to pin 2 of crystal oscillator X1. Pin 30 of U2 is connected to pin 1 of crystal oscillator X1 and one end of capacitor C7 (10pF). The other end of capacitor C7 is connected to pin 4 of crystal oscillator X1. The other ends of capacitors C7 and C8 and the corresponding pins of crystal oscillator X1 are grounded. Crystal oscillator X1 is a 25MHz passive crystal oscillator, which, together with capacitors C7 and C8, forms an oscillation circuit to provide a stable clock signal for U2, ensuring photoelectric conversion timing synchronization and avoiding data transmission errors.

[0061] Signal pins: Pins 1, 2, 3, 4, 36, 37, 38, and 39 of U2 are electrically connected to the RJ1 interface of the interface module for transmitting Ethernet signals; Pin 5 of U2 is connected to one end of resistor R18 (2.5kΩ), with the other end of R18 grounded, forming a pull-down resistor to stabilize the pin level; Pin 15 of U2 is connected to one end of resistor R15 (4.7kΩ), with the other end of R15 electrically connected to VCC_3.3V, forming a pull-up resistor to ensure the pin is at a default high level and prevent false triggering; Pins 9, 10, 12, and 13 of U2 are connected to the power supply isolation circuit of the interface module for controlling the start / stop of the isolation circuit and signal transmission.

[0062] The U2 optical signal input pin (RX) corresponds to the RX end of the field optical cable interface, and the optical signal output pin (TX) corresponds to the TX end of the interface.

[0063] like Figure 6 As shown, the reset circuit is used to restart the photoelectric conversion module when the device malfunctions, ensuring system stability. Specifically, it includes a reset button SW1, a resistor R2 (10kΩ), and a capacitor C1 (10nF). Pin 1 of SW1 is connected to one end of capacitor C1 and is grounded. Pin 2 of SW1 is connected to pin 33 of U2, the other end of capacitor C1, and one end of resistor R2. The other end of resistor R2 is electrically connected to VCC_3.3V. Under normal conditions, resistor R2 provides a high level to pin 33 of U2, and the device operates normally. When SW1 is pressed, the pin is grounded and becomes low, triggering U2 to reset. Capacitor C1 is used to eliminate button bounce and ensure a stable reset signal.

[0064] like Figure 1As shown, the status indicator circuit is used to visually display the device's operating status (such as power supply, communication speed, and faults), including diodes LED1 (red), LED2 (green), LED3 (green), LED4 (green), LED5 (green) and a current-limiting resistor:

[0065] Pin 23 of U2 (operational status pin) is connected to resistor R19 (4.7kΩ) and the anode of LED2. The cathode of LED2 is connected to one end of resistor R9 (470Ω). Pin 24 of U2 (communication status pin) is connected to resistor R7 (4.7kΩ) and the anode of LED3. The cathode of LED3 is connected to one end of resistor R10 (470Ω). Pin 25 of U2 (speed status pin) is connected to resistor R6 (4.7kΩ) and the anode of LED4. The cathode of LED4 is connected to one end of resistor R11 (470Ω). Pin 26 of U2 (speed status pin) is connected to resistor R5 (4.7kΩ) and the anode of LED5. The cathode of LED5 is connected to one end of resistor R12. The other ends of resistors R19, R7, R6, and R5 are all electrically connected to VCC_3.3V to limit the pin current.

[0066] Pin 27 of U2 (speed status pin) is connected to the anode of LED1 and one end of resistor R4 (4.7kΩ). The cathode of LED1 is connected to one end of resistor R8 (470Ω), and the other end of R8 is grounded. The other end of R4 is grounded. When the corresponding status is triggered, the U2 pin outputs a low level, and the LED is turned on and illuminates (e.g., LED1 lights up when 100Mbps communication is normal), which facilitates quick troubleshooting of equipment status in field scenarios.

[0067] The interface module is located on the side of the metal housing and is used to connect the device to external devices (such as field fiber optic cables, power supply equipment, and Ethernet devices). It includes a dedicated interface for field fiber optic cable connectors, a TYPE-C interface, and an RJ1 interface (RJ45 Ethernet interface). The specific circuitry is as follows:

[0068] The dedicated interface for field optical cable connectors is the core optical signal interface of the equipment, compatible with field-specific optical cable connectors (such as ST and SC type field connectors). Its signal pins are electrically connected to the optical signal conversion pins of U2 (not separately marked in the pin number, but integrated into the internal optical module of U2) through the shielded wire. The outer shielding layer of the shielded wire is grounded to avoid electromagnetic interference to the optical signal transmission and ensure the integrity of the optical signal transmission in complex field environments. The ferrule type is ceramic (diameter 2.5mm / 1.25mm), compatible with multimode optical fiber (fiber core diameter 50μm), and the interface female type is ST-PC (compliant with GJB 2789A-2012 field optical cable standard).

[0069] The field optical cable connector uses an existing device, and this utility model does not improve upon it, for example, by using an ST-type field connector female socket.

[0070] TYPE-C interface: such as Figure 5 As shown, the TYPE-C interface serves both charging and auxiliary data transmission functions, and its pin connections are as follows:

[0071] Charging function: The A9 and B9 pins of the TYPE-C interface are electrically connected to the positive terminal of the built-in battery to receive the charging voltage (5V / 2A) from the external charger and charge the built-in battery;

[0072] Data assistance function: The A12 pin of the TYPE-C interface is connected to one end of resistors R1 (5.1kΩ) and R3 (5.1kΩ) respectively. The other end of R1 is connected to the B5 pin of the TYPE-C interface, and the other end of R3 is connected to the A5 pin of the TYPE-C interface, forming an I2C communication bus, which can be used for device parameter configuration (such as communication rate adjustment).

[0073] Grounding and protection: Pins A12, 7, R1, and R3 of the TYPE-C interface are all grounded, and pin B12 is grounded to ensure stable interface voltage and prevent electrostatic damage.

[0074] like Figure 4 As shown, the RJ1 interface is an Ethernet electrical signal transmission interface, used to connect auxiliary equipment (such as portable monitoring hosts and switches) in field scenarios. Its pin connection relationship is as follows:

[0075] Signal transmission: Pins P2, P3, P4, and P7 of the RJ1 interface are connected to pins 36, 37, 38, and 39 of U2, respectively; pins P5, P6, P8, and P9 are connected to pins 1, 2, 3, and 4 of U2, respectively, forming two differential signal pairs, supporting the 10 / 100 / 1000Base-T Ethernet protocol, with a transmission rate ≤1000Mbps;

[0076] Filtering protection: The P1 pin of the RJ1 interface is connected to one end of capacitor C6 (capacitance value 100nF), and the other end of C6 is grounded to filter out external noise introduced by the interface and ensure stable transmission of electrical signals.

[0077] like Figure 3 As shown, the power supply isolation circuit is integrated between the interface module and the photoelectric conversion module. Its core is the isolation chip U3, which is used to achieve power supply isolation between the interface module and the core circuit, preventing noise or voltage fluctuations introduced by the external interface from affecting the photoelectric conversion module. The specific circuit is as follows:

[0078] Pin 1 of U3 is grounded; pin 2 is connected to pin 12 of U2, and pin 3 is connected to pin 13 of U2 to receive control signals from U2; pin 4 is connected to the anode of LED6 (green, isolation status indicator), and the cathode of LED6 is grounded. LED6 lights up when U3 is working normally.

[0079] Independent Power Supply: Pins 5 and 6 of U3 provide an independent isolated power supply (denoted as SCVCC, 3.3V) for the interface module. Capacitors C12 (100nF) and C13 (10nF) are connected in parallel on this power supply line. One end of C12 and C13 is connected to SCVCC, and the other end is grounded to filter out noise from the isolated power supply (e.g., Figure 7 (As shown).

[0080] Control Link: Pin 7 of U3 is connected to pin 9 of U2, one end of resistor R14 (82Ω), and one end of resistor R17 (130Ω); the other end of R14 is connected to VCC_3.3V and one end of resistor R13 (82Ω); pin 8 of U3 is connected to pin 10 of U2, the other end of R13, and one end of resistor R16 (130Ω); the other end of R16 is connected to the other end of R17 and both are grounded; this circuit adjusts the isolation output of U3 through the control signal output from U2 to ensure stable power supply to the interface module.

[0081] like Figure 7 As shown, to further ensure the purity of the power supply to the photoelectric conversion module, capacitors C9 (100nF), C10 (100nF), and C11 (10uF) are installed on its power supply line. One end of capacitor C9 is connected to VCC_1.0V, and the other end is grounded. One end of both C10 and C11 is connected to VCC_1.0V, and the other end is grounded. The three are connected in parallel to form a multi-stage decoupling structure, which is used to filter out residual noise in the VCC_1.0V line, realize power supply noise isolation, and ensure the stable operation of U2.

[0082] Example 2

[0083] This embodiment is a further refinement of Embodiment 1.

[0084] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0085] Core chips: Voltage regulator chip U1 is a low dropout voltage regulator (such as the LD39200 series); photoelectric conversion main chip U2 is an Ethernet chip that supports photoelectric conversion (such as the RTL8213 series); laser driver chip U3 is a finished product solution (such as the GN25L95 series).

[0086] Passive components: Capacitors C1, C2, C4, C9, C10, and C12 are 100nF ceramic capacitors (0805 package); C3, C5, and C11 are 10uF ceramic capacitors (0805 package); C6 and C13 are 10nF ceramic capacitors (0805 package); Resistors R1-R5, R7-R11, and R13-R20 are 0805 package surface mount resistors; Inductor L4 is a 2.2μH multilayer inductor; Crystal X1 is a 25MHz passive crystal oscillator (4-pin surface mount package).

[0087] Interfaces and structural components: The metal housing is made of aluminum alloy, model number 6061-T6, with dimensions of 50mm×40mm×5mm; the TYPE-C interface is a 6-pin surface mount interface; the RJ1 interface is an RJ45 female connector (with shielding); the built-in battery is a 3.7V polymer lithium battery (dimensions of 30mm×20mm×3mm).

[0088] Indicator lights and buttons: LED1-LED6 are 0603 packaged surface mount LEDs (red / green dual color); reset button SW1 is a tactile button (4-pin surface mount).

[0089] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0090] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable field optoelectronic conversion communication device, comprising a metal casing and a circuit board disposed within the metal casing, characterized in that: The circuit board integrates a photoelectric conversion module, a built-in power supply module, and an interface module. The photoelectric conversion module is integrated on the circuit board to realize the conversion of optical signals to electrical signals and data transmission; the built-in power supply module is a built-in battery, which is electrically connected to the circuit board to provide power for the device; the interface module is located on the housing and electrically connected to the circuit board, and the interface module includes at least one interface adapted to the field optical cable connector.

2. The portable field optoelectronic conversion communication device according to claim 1, characterized in that: The circuit structure of the built-in power supply module includes: The voltage regulator chip U1 has pins 1 and 2 connected to one end of capacitors C2 and C3 and the power supply. The other end of capacitor C2 is connected to the other end of capacitor C3, one end of capacitor C4 and one end of capacitor C5. The other ends of capacitors C4 and C5 are connected to pins 5 and 6 of U1 and the battery, respectively. Pins 3, 4, and 7 of U1 are all grounded; capacitors C2, C3, C4, and C5 are all grounded.

3. The portable field optoelectronic conversion communication device according to claim 1, characterized in that: The main circuit of the photoelectric conversion module includes the main chip U2; Pins 1, 2, 3, and 4 of U2 are connected to the interface module; pin 5 of U2 is connected to one end of resistor R18, and the other end of resistor R18 is grounded; pins 6, 7, 8, 11, 14, 19, 20, 21, 22, 28, 34, 35, and 40 of U2 are connected to the power supply; pins 9, 10, 12, and 13 of U2 are connected to the power supply isolation circuit of the interface module. Pin 15 of U2 is connected to one end of resistor R15, and the other end of resistor R15 is connected to the power supply. Pins 16 and 41 of U2 are grounded; Pins 17 and 18 of U2 are both connected to one end of inductor L4, and the other end of inductor L4 is connected to the power supply. Pin 29 of U2 is connected to pin 3 of crystal oscillator X1 and one end of capacitor C8, and the other end of capacitor C8 is connected to pin 2 of crystal oscillator X1; both capacitor C8 and pin 3 of crystal oscillator X1 are grounded. Pin 30 of U2 is connected to pin 1 of crystal oscillator X1 and one end of capacitor C7, and the other end of capacitor C7 is connected to pin 4 of crystal oscillator X1; both capacitor C7 and pin 1 of crystal oscillator X1 are grounded. Pin 33 of U2 is connected to the reset circuit; pins 36, 37, 38 and 39 of U2 are all connected to the interface module.

4. A portable field optoelectronic conversion communication device according to claim 3, characterized in that: The circuit structure of the interface module includes a TYPE-C interface and an RJ1 interface; The A12 pin of the TYPE-C interface is connected to one end of resistor R1 and resistor R3 respectively. The other end of resistor R1 is connected to the B5 pin of the TYPE-C interface, and the other end of resistor R3 is connected to the A5 pin of the TYPE-C interface. The A12 pin, pin 7 of the TYPE-C interface, resistor R1 and resistor R3 are all grounded. The A9 and B9 pins of the TYPE-C interface are both connected to the battery; the B12 pin of the TYPE-C interface is grounded. The P2, P3, P4 and P7 pins of the RJ1 interface are connected to pins 36, 37, 38 and 39 of the U2 interface, respectively. The P5, P6, P8 and P9 pins of the RJ1 interface are connected to pins 1, 2, 3 and 4 of the U2 interface, respectively. The P1 pin of the RJ1 interface is connected to one end of capacitor C6, and the other end of capacitor C6 is grounded.

5. A portable field optoelectronic conversion communication device according to claim 4, characterized in that: The photoelectric conversion module also includes a status indicator circuit, which includes diodes LED1, LED2, LED3, LED4, and LED5. Pin 23 of U2 is connected to resistor R19 and one end of diode LED2, with the other end of diode LED2 connected to one end of resistor R9; pin 24 of U2 is connected to resistor R7 and one end of diode LED3, with the other end of diode LED3 connected to resistor R10; pin 25 of U2 is connected to resistor R6 and one end of diode LED4, with the other end of diode LED4 connected to resistor R11; pin 26 of U2 is connected to resistor R5 and one end of diode LED5, with the other end of diode LED5 connected to resistor R12; the other ends of resistors R9, R10, R11, and R12 are all connected to the power supply; the other ends of resistors R19, R7, R6, and R5 are all connected to the power supply. Pin 27 of U2 is connected to diode LED1 and one end of resistor R4. The other end of diode LED1 is connected to one end of resistor R8, and the other end of resistor R8 is grounded. The other end of resistor R4 is grounded.

6. A portable field optoelectronic conversion communication device according to claim 5, characterized in that: The photoelectric conversion module also includes a reset circuit; the reset circuit includes a reset button SW1, a resistor R2 and a capacitor C1. Pin 1 of SW1 is connected to one end of capacitor C1, pin 2 of SW1 is connected to pin 33 of U2, the other end of capacitor C1 and one end of resistor R2 respectively, and the other end of resistor R2 is connected to the power supply; pin 1 of SW1 and capacitor C1 are both grounded.

7. A portable field optoelectronic conversion communication device according to claim 6, characterized in that: The interface module also includes a power supply isolation circuit, which includes an isolation chip U3; Pin 1 of U3 is grounded; pin 2 of U3 is connected to pin 12 of U2; pin 3 of U3 is connected to pin 13 of U2; pin 4 of U3 is connected to one end of diode LED6; and the other end of diode LED6 is grounded. Pins 5 and 6 of U3 are used to independently power the interface module; pin 7 of U3 is connected to pin 9 of U2, one end of resistor R14, and one end of resistor R17; the other end of resistor R14 is connected to the power supply and one end of resistor R13. Pin 8 of U3 is connected to pin 10 of U2, the other end of resistor R13, and one end of resistor R16; the other end of resistor R16 is connected to the other end of resistor R17. Both resistors R16 and R17 are grounded.

8. A portable field optoelectronic conversion communication device according to claim 7, characterized in that: On the circuit that powers the interface module via pins 5 and 6 of U3, capacitors C12 and C13 are connected in parallel; one end of capacitor C12 is connected to one end of capacitor C13 and the power supply; the other ends of capacitors C12 and C13 are both grounded.

9. A portable field optoelectronic conversion communication device according to claim 3, characterized in that: The power supply circuit of the photoelectric conversion module is also equipped with capacitors C9, C10, and C11, which are used for power decoupling and noise isolation of the photoelectric conversion module. One end of capacitor C9 is connected to the power supply, one end of capacitor C10, and one end of capacitor C11. The other ends of capacitors C9, C10, and C11 are all grounded.

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