Circuit structure of receiver

Abstract

The utility model discloses a circuit structure of a receiver, and the circuit structure comprises a mainboard which is provided with a main control chip, a communication chip, two network ports, a Type-c power supply interface, an RJ45 network cable inlet port, an RJ45 network cable outlet port, a power button port, a screen port, an alarm lamp port, an alarm port, a reset button port, and a plurality of receiving module ports. The communication chip is electrically connected with the main control chip, the RJ45 network cable inlet port and the RJ45 network cable outlet port are both electrically connected with the communication chip, the screen port is electrically connected with the communication chip, and the alarm lamp port, the alarm port, the power button port and the plurality of receiving module ports are all electrically connected with the main control chip.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal receivers, and in particular relates to a circuit structure of a receiver. Background Art

[0002] Enterprises involved in high-risk sports are equipped with necessary life-saving equipment, such as drowning prevention systems, AED defibrillators, etc.

[0003] Swimming itself is also a high-risk industry. Practitioners generally lack safety awareness, and relying solely on personnel to supervise the safety of swimmers poses a major safety hazard. Therefore, the industry urgently needs a safety guarantee solution to solve the industry's high-risk pain points. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model aims to provide a circuit structure of a receiver.

[0005] According to one aspect of the utility model, a circuit structure of a receiver is provided, a mainboard, the mainboard is provided with a main control chip, a communication chip, two network ports, a Type-c power supply interface, an RJ45 network cable input port, an RJ45 network cable output port, a power button port, a screen port, an alarm light port, an alarm port, a reset button port and multiple receiving module ports, the communication chip is electrically connected to the main control chip, the RJ45 network cable input port and the RJ45 network cable output port are both electrically connected to the communication chip, the screen port is electrically connected to the communication chip, and the alarm light port, the alarm port, the power button port and multiple receiving module ports are all electrically connected to the main control chip.

[0006] In some embodiments, the Type-c power supply interface can be electrically connected to the gallium nitride charger, and the gallium nitride charger adopts the C To C interface to connect to the mainboard for power supply, and adjusts the power supply voltage to 9V through the PD protocol. At the same time, the mainboard power supply is connected to a self-locking button with a power indicator light through the key switch interface to control the power on and off of the mainboard.

[0007] In some embodiments, the mainboard is directly connected to the electrically connected screen port, alarm light port, alarm port and reset button port through a protection circuit, and the protection circuit provides a voltage of 9V to the electrically connected screen port, alarm light port, alarm port and reset button port.

[0008] In some implementations, the mainboard supplies power to the main control circuit and multiple receiving module ports with a 3.3V voltage that passes through a protection circuit and then undergoes two-stage step-down conversion.

[0009] In some embodiments, when the mainboard is plugged into a TYPE-C cable through a TYPE-C interface for power supply, the fast charging chip in the TYPE-C cable receives the PD protocol of the gallium nitride power supply and shakes hands with the voltage protocol set by the mainboard circuit, and outputs a current of 9V voltage. The switch interface controls the on and off of the mainboard circuit by connecting to an external self-locking button with a power indicator light, and then divides the circuit into two LDO step-down circuits after the switch, namely the first step-down circuit and the second step-down circuit, which reduce the voltage from 9V to 5V. The first step-down circuit is divided into one LDO secondary step-down circuit, which is the secondary step-down first circuit, which reduces 5V to 3.3V; the second step-down circuit is divided into two LDO secondary step-down circuits, which are the secondary step-down second circuit and the secondary step-down third circuit, which reduce 5V to 3.3V.

[0010] In some embodiments, the mainboard divides the global circuit into multiple secondary step-down conversions.

[0011] The beneficial effects of the utility model are:

[0012] 1. The overall circuit scheme adopts a modular design, which simplifies the connection of function keys and avoids the repeated layout of unnecessary function keys on the receiver.

[0013] 2. The whole device is powered by PD protocol and connected by TYPE-C port. Compared with the traditional j receiver, the size of the base station is greatly reduced. The overall waterproof performance is also improved.

[0014] 3. The visual light design of various functions in the circuit scheme simplifies the operations of data detection and fault troubleshooting.

[0015] 4. A power electronic switch protection design is added to each step-down circuit, which can be used in places with high humidity such as swimming pools and swimming pools to more effectively protect the circuit and ensure the stability of the receiver.

[0016] 5. The overall circuit scheme of the receiver adopts a board-to-board connection method of one main board and two sub-boards, which greatly reduces the volume of the board and makes more efficient use of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the circuit structure of a receiver according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A control structure diagram of the circuit structure of the receiver shown;

[0019] Figure 3 for Figure 1 A circuit schematic diagram of the circuit structure of the receiver shown;

[0020] Figure 4 for Figure 1 The schematic diagram of the receiver's circuit structure when the TYPE-C interface is plugged into the TYPE-C line for power supply;

[0021] Figure 5 for Figure 1 The schematic diagram of the first buck circuit and the second buck circuit of the circuit structure of the receiver shown;

[0022] Figure 6 for Figure 1 A schematic diagram of a secondary step-down circuit of the circuit structure of the receiver shown;

[0023] Figure 7 for Figure 1 A schematic diagram of a fault indication circuit of the circuit structure of the receiver shown;

[0024] Figure 8 for Figure 1 The main control chip circuit schematic diagram of the receiver circuit structure shown;

[0025] Fig. 9 for Figure 1 A state indication circuit schematic diagram of the circuit structure of the receiver shown;

[0026] Fig.10 for Figure 1 The circuit structure of the receiver is shown as a schematic diagram of the identity recognition circuit;

[0027] Fig.11 for Figure 1 The receiving module and mainboard circuit schematic diagram of the circuit structure of the receiver shown;

[0028] Fig.12 for Figure 1 A schematic diagram of a board-to-board interface circuit of the circuit structure of the receiver shown;

[0029] Fig.13 for Figure 1 The serial number of the circuit structure of the receiver shown indicates the circuit schematic diagram;

[0030] Fig.14 for Figure 1 The schematic diagram of the interfaces of various functional modules of the main board of the receiver's circuit structure is shown. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] like Figure 1 to Figure 14 As shown, according to one aspect of the utility model, a circuit structure of a receiver is provided, including a mainboard, on which a main control chip 1, a communication chip 2, two network ports 3, a Type-c power supply interface 4, an RJ45 network cable input port, an RJ45 network cable output port, a power button port 7, a screen port 8, an alarm light port 9, an alarm port, a reset button port 11 and multiple receiving module ports 12 are provided, the communication chip 2 is electrically connected to the main control chip 1, the RJ45 network cable input port and the RJ45 network cable output port are both electrically connected to the communication chip 2, the screen port 8 is electrically connected to the communication chip 2, and the alarm light port 9, the alarm port, the reset button port 11 and multiple receiving module ports 12 are all electrically connected to the main control chip.

[0034] Different modules can be connected to different ports, such as: the Type-c power supply interface can be connected to the Type-c charging cable, the RJ45 network cable input port can be connected to the RJ45 network cable, and the RJ45 network cable output port can also be connected to the RJ45 network cable. The power button port 7 can be connected to the power supply, and the rest are similar.

[0035] from Figure 1 It can be seen that the Type-c power supply interface in this embodiment can be electrically connected to the gallium nitride charger. The gallium nitride charger adopts the C To C interface to connect to the mainboard for power supply, and adjusts the power supply voltage to 9V through the PD protocol. At the same time, the mainboard power supply is connected to a self-locking button with a power indicator light through the key switch interface to control the power on and off of the mainboard.

[0036] from Figure 1It can be seen that the mainboard in this embodiment is directly connected to the electrically connected screen port, alarm light port, alarm port and reset button port through the protection circuit, and the protection circuit provides a voltage of 9V to the electrically connected screen port, alarm light port, alarm port and reset button port.

[0037] from Figure 1 It can be seen that the mainboard in this embodiment passes through the protection circuit and then undergoes two-stage step-down conversion to generate a 3.3V voltage to power the main control circuit and multiple receiving module ports.

[0038] At the same time, from Figure 2 It can be seen that in this embodiment, the base station connects the matrix of each base station through network port 1 and network port 2, and communicates data through Category 6 network cables, which can ensure the stability of communication under strong electromagnetic interference. The base station data is transmitted to the communication chip through the network cable, and the data is converted by the communication chip and then transmitted back to the main control chip. The main control chip transmits and executes instructions, processes and displays data on the screen according to actual conditions, and then controls the execution of instructions for the alarm light and buzzer; the receiving module is responsible for wireless communication throughout the process, and receives external sending end signals through wireless communication protocols. When receiving the signal, it directly interacts with the main control chip to complete the information exchange. The mainboard is also equipped with a monitoring port to facilitate the real-time capture of data by the background and realize direct feedback.

[0039] from Figure 3 It can be seen that in this embodiment, when the motherboard is plugged into the TYPE-C line through the TYPE-C interface for power supply, the fast charging chip in the TYPE-C line receives the PD protocol of the GaN power supply and shakes hands with the voltage protocol set by the motherboard circuit, and outputs a 9V voltage current. Figure 4 As can be seen in the figure, the switch interface controls the on / off of the mainboard circuit by connecting an external self-locking button with a power indicator light. Then, the circuit is divided into two LDO step-down circuits after the switch, namely the first step-down circuit and the second step-down circuit, which reduce the voltage from 9V to 5V. Figure 5 It can be seen that the first buck circuit is divided into one LDO secondary buck circuit, which is the secondary buck first circuit, reducing 5V to 3.3V; the second buck circuit is divided into two LDO secondary buck circuits, which are the secondary buck second circuit and the secondary buck third circuit, reducing 5V to 3.3V.

[0040] from Figure 6 It can be seen that in this embodiment, the mainboard divides the global circuit into multiple secondary step-down conversions.

[0041] Combination Figure 6It can be seen that the motherboard divides the global circuit into multiple secondary step-down conversions. Taking into account the high humidity venues such as swimming pools and natatoriums, and the presence of constant temperature swimming pools in winter, there will be higher requirements for the heat dissipation of the circuit solution. According to the power consumption of each module in the circuit, such a two-level step-down conversion circuit is adopted for heat dissipation.

[0042] like Figure 6 and Figure 7 As shown, in each circuit, in addition to the circuit design for voltage conversion, a power electronic switch circuit with safety protection and indication function is added to each step-down circuit. When a module failure occurs on the circuit or water ingress causes the circuit to become abnormal, the power supply will be cut off in time and a red fault indicator light will be turned on, making it convenient for staff to carry out maintenance and quickly troubleshoot the circuit of the mainboard.

[0043] In the circuit scheme of the receiver, the circuit schematic diagram of the base station single master control uses a master control chip to call the functions of various interface resources. A filtering circuit is added to each power supply pin of the master control chip to ensure the stability of the circuit.

[0044] Figure 8 In the circuit design of the receiver, in order to better know the working status of the receiver at this time, three status indicators are added, which can more intuitively see the working status of the entire receiver background;

[0045] Fig. 9 In the communication circuit, the network port data is converted through the communication chip, and the data is transmitted to the communication chip of the main board through the digital isolator for data conversion, and the data is transmitted to the main control chip for signal transmission, and the main control chip controls the execution of the module's instructions. A sliding switch of resistance is also added to the circuits of the end A2 and B2 to facilitate the main board to identify the head and tail in the mode of multiple receivers in series.

[0046] like Fig.10 As shown, in the design of the circuit solution, the receiving module is externalized and connected to the main board to form a board-to-board connection. This can reduce the size of the main board while ensuring the functionality, and also make the main board's call of the receiving channel more efficient.

[0047] like Fig.11 The board-to-board interface on the main board is shown. The main board is a female connector, which is reserved for connection with the receiving module sub-board.

[0048] like Fig.12 As shown, two receiving module sub-boards are connected to the main board board-to-board. There are two receiving modules on a single receiving module sub-board. The circuit schematic of the receiving module is shown in the figure above. Through the board-to-board male socket, it is connected to the reserved female socket on the main board to form a complete receiver circuit solution.

[0049] like Fig.13 As shown, the circuit design of the sub-board is also equipped with a visual serial number indicator light, which is convenient for checking the status of the receiving modules of different channels and the channel sequence.

[0050] like Fig.14 As shown, it is a schematic diagram of the interfaces of various functional modules of the mainboard. Each module is connected through an interface, which facilitates efficient calling of the base station when performing different circuit function expansions and avoids waste of resources.

[0051] In terms of circuit structure, this circuit scheme adopts a main board and two sub-boards to expand the circuit by board-to-board connection. Under the same function, the board occupies a smaller area. The sub-board is shown in the figure below. A single sub-board has a dual-channel receiving module and a status indicator. The receiving module interface 1 and the receiving module interface 2 below are connected to the receiving module interface 1 and 2 of the main board to exchange data. If four-channel reception is required, an additional sub-board will be added, and the receiving module interface 1 of the sub-board corresponds to the receiving module interface 4 of the main board, and the receiving module interface 2 corresponds to the receiving interface 3 of the main board.

[0052] 1. The overall circuit scheme adopts a modular design, which simplifies the connection of function keys and avoids the repeated layout of unnecessary function keys on the receiver.

[0053] 2. The whole device is powered by PD protocol and connected by TYPE-C port. Compared with the traditional j receiver, the size of the base station is greatly reduced. The overall waterproof performance is also improved.

[0054] 3. The visual light design of various functions in the circuit scheme simplifies the operations of data detection and fault troubleshooting.

[0055] 4. A power electronic switch protection design is added to each step-down circuit, which can be used in places with high humidity such as swimming pools and swimming pools to more effectively protect the circuit and ensure the stability of the receiver.

[0056] 5. The overall circuit scheme of the receiver adopts a board-to-board connection method of one main board and two sub-boards, which greatly reduces the volume of the board and makes more efficient use of space.

[0057] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A circuit structure of a receiver, characterized in that: The invention comprises a mainboard, wherein the mainboard is provided with a main control chip (1), a communication chip (2), two network ports (3), a Type-C power supply interface (4), an RJ45 network cable input port, an RJ45 network cable output port, a power button port (7), a screen port (8), an alarm light port (9), an alarm port, a reset button port (11) and a plurality of receiving module ports (12); the communication chip (2) is electrically connected to the main control chip (1); the RJ45 network cable input port and the RJ45 network cable output port are both electrically connected to the communication chip (2); the screen port (8) is electrically connected to the communication chip (2); the alarm light port (9), the alarm port, the reset button port (11) and the plurality of receiving module ports (12) are all electrically connected to the main control chip.

2. The circuit structure of the receiver according to claim 1, characterized in that: The Type-c power supply interface (4) can be electrically connected to the gallium nitride charger, and the gallium nitride charger adopts a C To C interface to connect to the mainboard for power supply, and adjusts the power supply voltage to 9V through the PD protocol. At the same time, the mainboard power supply is connected to a self-locking button with a power indicator light through a key switch interface to control the power on and off of the mainboard.

3. The circuit structure of the receiver according to claim 2, characterized in that: The mainboard is directly connected to the electrically connected screen port, alarm light port, alarm port and reset button port through a protection circuit, and the protection circuit provides a voltage of 9V to the electrically connected screen port, alarm light port, alarm port and reset button port.

4. The circuit structure of the receiver according to claim 3, characterized in that: The mainboard passes through the protection circuit and then undergoes two-stage step-down conversion to generate a 3.3V voltage to supply power to the main control circuit and multiple receiving module ports.

5. The circuit structure of the receiver according to claim 4, characterized in that: When the motherboard is plugged into the TYPE-C cable through the TYPE-C interface for power supply, the fast charging chip in the TYPE-C cable receives the PD protocol of the gallium nitride power supply and shakes hands with the voltage protocol set by the motherboard circuit, and outputs a current of 9V voltage. The switch interface is connected to an external self-locking button with a power indicator light, and the circuit of the motherboard is turned on and off. Then, after the switch, the circuit is divided into two LDO step-down circuits, namely the first step-down circuit and the second step-down circuit, which reduce the voltage from 9V to 5V. The first step-down circuit is divided into one LDO secondary step-down circuit, which is the secondary step-down first circuit, which reduces 5V to 3.3V; the second step-down circuit is divided into two LDO secondary step-down circuits, which are the secondary step-down second circuit and the secondary step-down third circuit, which reduce 5V to 3.3V.

Images