Router automatic restart system

Abstract

The utility model discloses a router automatic restart system, which comprises a control circuit, a single-chip microcomputer NY8A051H, a JP3 wiring terminal and an MOS tube, the control circuit comprises an HT7550-1 linear voltage regulator, the HT7550-1 linear voltage regulator is used for supplying power to the single-chip microcomputer NY8A051H, the JP3 wiring terminal is connected with the single-chip microcomputer NY8A051H, and the MOS tube is connected with the single-chip microcomputer NY8A051H. A pin 2 of the single-chip microcomputer NY8A051H is connected with a negative electrode of a light emitting diode LED, and a positive electrode of the light emitting diode LED is connected with the other end of the resistor R3; at least one of a pin 3, a pin 4, a pin 6 and a pin 7 of the single chip microcomputer NY8A051H is connected with a short circuit point DE; the model of the MOS tube is 20N03D, a grid electrode of the MOS tube is connected with one end of the resistor R1 and one end of the resistor R2, and the other end of the resistor R1 is connected with a pin 5 of the single-chip microcomputer NY8A051H; the other end of the resistor R2 is grounded; and the source electrode of the MOS tube is grounded. The router automatic restart system is stable and reliable, is simple in design, can be powered on without software and hardware knowledge, and can set time before a module leaves a factory.

Description

Technical Field

[0001] This utility model relates to the field of router technology, specifically to a router automatic restart system. Background Technology

[0002] With the wide variety of routers on the market today, and their complex multi-functionality, routers can cause various problems for ordinary users and small businesses, especially during extended periods of operation. Failure to periodically restart the router can lead to its malfunction. For example, modern network equipment (especially home / enterprise routers) needs to operate continuously 24 / 7, and prolonged power supply can cause:

[0003] 1. Accumulated memory leaks cause system lag;

[0004] 2. Accumulated cached data reduces forwarding efficiency;

[0005] 3. High-temperature aging of chips accelerates performance degradation;

[0006] 4. Software malfunctions trigger system crashes or network outages. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this utility model provides a router automatic restart system.

[0008] Therefore, the present invention adopts the following technical solution:

[0009] An automatic router restart system includes: a control circuit, a microcontroller NY8A051H, a JP3 terminal block, and a MOSFET. The control circuit includes: an HT7550-1 linear regulator, capacitors C2, C3, and C4, and a JP1 terminal block. The VIN pin of the HT7550-1 linear regulator is connected to one end of capacitor C2 and the JP1 terminal block, respectively. The JP1 terminal block is connected to the positive terminal for powering the router. The other end of capacitor C2 is grounded. The GND pin of the HT7550-1 linear regulator is grounded. The Vout pin of the HT7550-1 linear regulator is connected to one end of capacitor C3, one end of capacitor C4, pin 1 of the microcontroller NY8A051H, and one end of resistor R3, respectively. The other ends of capacitors C3 and C4 are grounded.

[0010] Pin 2 of the NY8A051H microcontroller is connected to the negative terminal of the LED, and the positive terminal of the LED is connected to the other end of the resistor R3; at least one of pins 3, 4, 6 and 7 of the NY8A051H microcontroller is connected to a short circuit point DE, and the other end of the short circuit point DE is grounded.

[0011] Pin 8 of the NY8A051H microcontroller is grounded;

[0012] The MOSFET is model 20N03D. The gate of the MOSFET is connected to one end of resistor R1 and one end of resistor R2 respectively. The other end of resistor R1 is connected to pin 5 of the microcontroller NY8A051H. The other end of resistor R2 is grounded.

[0013] The source of the MOSFET is grounded;

[0014] One end of the drain of the MOSFET is connected to the JP3 terminal and the anode of the diode 1N4007D1, and the cathode of the diode 1N4007D1 is connected to the JP2 terminal and one end of the capacitor C1, while the other end of the capacitor C1 is grounded.

[0015] Connect the JP2 and JP3 terminals to the positive and negative terminals of the router in sequence;

[0016] The JP4 terminal block is grounded and used for the negative connection to power the router.

[0017] In the above technical solution, the JP1 terminal is used to input 12V voltage to the HT7550-1 linear regulator.

[0018] In the above technical solution, the Vout pin of the HT7550-1 linear regulator is connected to pin 1 of the NY8A051H microcontroller to output a 5V voltage.

[0019] In the above technical solution, pin 3 of the microcontroller NY8A051H is connected to one end of the short circuit point DE1, and the other end of the short circuit point DE1 is grounded; pin 4 of the microcontroller NY8A051H is connected to one end of the short circuit point DE3, and the other end of the short circuit point DE3 is grounded; pin 6 of the microcontroller NY8A051H is connected to one end of the short circuit point DE4, and the other end of the short circuit point DE4 is grounded; pin 7 of the microcontroller NY8A051H is connected to one end of the short circuit point DE2, and the other end of the short circuit point DE2 is grounded.

[0020] In the above technical solution, short circuit points DE1 to DE4 are all PCB short circuit caps.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Hardware-level forced reset solves software deadlock problem: The 12V and other low-voltage power supply is directly cut off through the MOSFET and then powered on again after a delay (controlled by the microcontroller timer TIM);

[0023] Advantages: Traditional software watchdogs fail when the system crashes, while this invention achieves 100% forced reset through physical power disconnection.

[0024] 2. Contactless switches extend service life: using MOSFETs, there are no mechanical contacts, supporting more than 100,000 switching cycles;

[0025] 3. Multi-mode control compatible with complex scenarios: The microcontroller (NY8A051H) has 5 built-in modes (open circuit, DE1, DE2, DE3, DE4), which can be set by shorting the pads;

[0026] 4. Low-power standby design: The control circuit uses the HT7550-1 chip, with a standby power consumption of only 0.3W;

[0027] Comparative advantages: Compared with traditional solutions using continuously operating WiFi modules (such as ESP8266, 1.2W in standby mode), it saves 7.8 kWh of electricity per year (at a price of 0.6 yuan / kWh). Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the router's automatic system restart mechanism. Detailed Implementation

[0029] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the following embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example

[0031] like Figure 1 As shown, an automatic router restart system includes: a control circuit, a microcontroller NY8A051H, a JP3 terminal block, and a MOSFET. The control circuit includes: an HT7550-1 linear regulator, capacitors C2, C3, and C4, and a JP1 terminal block. The VIN pin of the HT7550-1 linear regulator is connected to one end of capacitor C2 and the JP1 terminal block, respectively. The JP1 terminal block is connected to the positive terminal for supplying power to the router, providing a 12V input voltage to the HT7550-1 linear regulator. The other end of capacitor C2 is grounded; the GND pin of the HT7550-1 linear regulator is grounded; the Vout pin of the HT7550-1 linear regulator is connected to one end of capacitor C3, one end of capacitor C4, pin 1 of the microcontroller NY8A051H, and one end of resistor R3, respectively. The Vout pin of the HT7550-1 linear regulator is connected to pin 1 of the microcontroller NY8A051H to output 5V voltage to power the microcontroller NY8A051H; the other ends of capacitor C3 and capacitor C4 are grounded respectively.

[0032] Pin 2 of the NY8A051H microcontroller is connected to the negative terminal of the LED, and the positive terminal of the LED is connected to the other end of resistor R3; pin 3 of the NY8A051H microcontroller is connected to one end of short circuit point DE1, and the other end of short circuit point DE1 is grounded; pin 4 of the NY8A051H microcontroller is connected to one end of short circuit point DE3, and the other end of short circuit point DE3 is grounded; pin 6 of the NY8A051H microcontroller is connected to one end of short circuit point DE4, and the other end of short circuit point DE4 is grounded; pin 7 of the NY8A051H microcontroller is connected to one end of short circuit point DE2, and the other end of short circuit point DE2 is grounded; pin 8 of the NY8A051H microcontroller is grounded; short circuit points DE1 to DE4 are all PCB shorting caps;

[0033] The four short-circuit points DE (DE1 to DE4) have the same or different restart times, and short-circuit points DE1 to DE4 are left floating. Before connecting the router's automatic restart system to the router, shorting different short-circuit points DE (DE1 to DE4) provides the NY8A051H microcontroller with a preset timed restart time selection, enabling flexible restart cycle configuration. Alternatively, all four short-circuit points DE can be shorted, and the NY8A051H microcontroller's built-in program can select a specific short-circuit point DE, thus providing the NY8A051H microcontroller with a preset timed restart time.

[0034] The restart times for the four short-circuit points DE are as follows: DE1 restart time: 48 hours, DE2 restart time: 240 hours, DE3 restart time: 360 hours, and DE4 restart time: 720 hours.

[0035] The MOSFET is model 20N03D. The gate (pin 4) of the MOSFET is connected to one end of resistor R1 and one end of resistor R2. The other end of resistor R1 is connected to pin 5 of the microcontroller NY8A051H. The microcontroller NY8A051H controls the conduction of the MOSFET through pin 5. The other end of resistor R2 is grounded. The source of the MOSFET (pins 1, 2, and 3) is connected to ground. One end of the drain (pin 5) of the MOSFET is connected to terminal JP3 and the anode of diode 1N4007D1. The cathode of diode 1N4007D1 is connected to terminal JP2 and one end of capacitor C1. The other end of capacitor C1 is grounded.

[0036] The JP2 and JP3 terminals are connected to the positive and negative terminals of the router, respectively; the JP4 terminal is grounded and used for the negative terminal connection to supply power to the router.

[0037] Upon power-up, the HT7550-1 linear regulator outputs 5V to pin 1 of the NY8A051H microcontroller, supplying power to the NY8A051H. Pin 5 of the NY8A051H microcontroller outputs a high-low level. When pin 5 of the NY8A051H microcontroller outputs a high level, the MOSFET turns on, and the internal timer of the NY8A051H microcontroller begins counting. After the timer restarts, pin 5 of the NY8A051H microcontroller outputs a low level, the MOSFET turns off, the router loses power, and enters a restart wait. After a 5-second timer, pin 5 of the NY8A051H microcontroller returns to a high level, and the MOSFET turns on again.

[0038] The router automatic restart system of this utility model is powered by a 5V supply from an HT7550-1 linear regulator to a low-power microcontroller NY8A051H. The NY8A051H's internal timer accumulates the count, and the required restart time is set via a DE short-circuit point (PCB short cap). The NY8A051H then inverts the I / O port level, controlling the conduction of the MOSFET to control the load power supply. (The NY8A051H has a built-in watchdog program; in case of program crashes, the microcontroller can be reset and restarted, preventing program crashes and providing multiple layers of protection.)

[0039] This utility model's router automatic restart system is stable and reliable, with a simple design that requires no hardware or software knowledge to operate upon power-up. The module's time is pre-set at the factory. Simply disconnect the router's power cord, connect the automatic restart system in series, and then plug in the original power supply to the router to complete deployment. Compared to smart sockets and similar devices on the market, this product offers advantages in terms of low cost and stable reliability.

[0040] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A router with automatic system restart, characterized in that, include: The system includes a control circuit, a microcontroller (NY8A051H), a JP3 terminal block, and a MOSFET. The control circuit comprises an HT7550-1 linear regulator, capacitors C2, C3, and C4, and a JP1 terminal block. The VIN pin of the HT7550-1 linear regulator is connected to one end of capacitor C2 and the JP1 terminal block. The JP1 terminal block is connected to the positive terminal used to power the router. The other end of capacitor C2 is grounded. The GND pin of the HT7550-1 linear regulator is grounded. The Vout pin of the HT7550-1 linear regulator is connected to one end of capacitor C3, one end of capacitor C4, pin 1 of the NY8A051H microcontroller, and one end of resistor R3. The other ends of capacitors C3 and C4 are grounded. Pin 2 of the NY8A051H microcontroller is connected to the negative terminal of the LED, and the positive terminal of the LED is connected to the other end of the resistor R3; at least one of pins 3, 4, 6 and 7 of the NY8A051H microcontroller is connected to a short circuit point DE, and the other end of the short circuit point DE is grounded. Pin 8 of the NY8A051H microcontroller is grounded; The MOSFET is model 20N03D. The gate of the MOSFET is connected to one end of resistor R1 and one end of resistor R2 respectively. The other end of resistor R1 is connected to pin 5 of the microcontroller NY8A051H. The other end of resistor R2 is grounded. The source of the MOSFET is grounded; One end of the drain of the MOSFET is connected to the JP3 terminal and the anode of the diode 1N4007D1, and the cathode of the diode 1N4007D1 is connected to the JP2 terminal and one end of the capacitor C1, while the other end of the capacitor C1 is grounded. Connect the JP2 and JP3 terminals to the positive and negative terminals of the router in sequence; The JP4 terminal block is grounded and used for the negative connection to power the router.

2. The router automatic restart system according to claim 1, characterized in that, The JP1 terminal block is used to input 12V voltage to the HT7550-1 linear regulator.

3. The router automatic restart system according to claim 1, characterized in that, The Vout pin of the HT7550-1 linear regulator is connected to pin 1 of the NY8A051H microcontroller to output a 5V voltage.

4. The router automatic restart system according to claim 1, characterized in that, Pin 3 of the NY8A051H microcontroller is connected to one end of short circuit point DE1, and the other end of short circuit point DE1 is grounded; pin 4 of the NY8A051H microcontroller is connected to one end of short circuit point DE3, and the other end of short circuit point DE3 is grounded; pin 6 of the NY8A051H microcontroller is connected to one end of short circuit point DE4, and the other end of short circuit point DE4 is grounded; pin 7 of the NY8A051H microcontroller is connected to one end of short circuit point DE2, and the other end of short circuit point DE2 is grounded.

5. The router automatic restart system according to claim 4, characterized in that, Short circuit points DE1 to DE4 are all PCB short circuit caps.

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