Self-recovery circuit of home network terminal

Abstract

The utility model provides a self-recovery circuit of a home network terminal. According to the technical scheme, the self-recovery circuit is characterized by comprising a fault signal acquisition unit, a fault signal processing unit and an equipment self-recovery execution unit, the fault signal acquisition unit comprises a red light photosensitive diode and a first adaptive resistor, and the fault signal acquisition unit is used for acquiring an equipment fault signal of the home network terminal; the fault signal processing unit comprises a NOR gate, and the fault signal processing unit is used for collecting equipment fault signals and carrying out signal identification processing on the equipment fault signals; and the equipment self-recovery execution unit comprises a relay and a second adaptive resistor and is used for controlling the terminal equipment state of the home network terminal. According to the method and the device, when the home network terminal fails, the device can be automatically restarted, and the service function is recovered.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household communication technology, in particular to a self-recovery circuit of a household network terminal. BACKGROUND

[0002] Currently, the household optical modem / router / set-top box occasionally occurs device hanging / standby failure due to device performance, heat dissipation environment, electromagnetic interference and other reasons. However, due to the professional nature of device testing and the concealment of device installation, it is difficult for household users to maintain the device after the device fails, and the maintenance personnel of the telecommunications operator needs to be on-site to troubleshoot and handle it, which increases the operation and maintenance cost of the device manufacturer and the operator to a certain extent, and also makes the user dissatisfied with the service quality of the household broadband / iptv service.

[0003] The present application provides a self-recovery circuit of a household network terminal, which can restart the device and restore the service function when the household optical modem / router / set-top box occurs device hanging / standby failure. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a self-recovery circuit of a household network terminal, which comprises:

[0005] A self-recovery circuit of a household network terminal, characterized by comprising a fault signal acquisition unit, a fault signal processing unit and a device self-recovery execution unit.

[0006] The fault signal acquisition unit comprises a red light photosensitive diode and a first adaptive resistor, and is used for acquiring the device fault signal of the household network terminal.

[0007] The fault signal processing unit comprises an NAND gate, and is used for collecting the device fault signal and performing signal identification processing on the device fault signal.

[0008] The device self-recovery execution unit comprises a relay and a second adaptive resistor, and is used for controlling the terminal device state of the household network terminal.

[0009] Preferably, the anode of the red light photodiode is connected with an external power supply, the cathode of the red light photodiode is connected with one end of a first adaptive resistor, and the cathode of the red light photodiode is also connected with a signal input end of a NOR gate, the other end of the first adaptive resistor is grounded, the signal input end of the NOR gate is also connected with a home network terminal, the signal output end of the NOR gate is connected with one end of a relay, the other end of the relay is connected with a second adaptive resistor, the other end of the second adaptive resistor is grounded, the relay is also connected with the external power supply, the other end of the relay is connected with the home network terminal through a device power line, and the home network terminal is provided with a fault light.

[0010] Preferably, the red light photodiode is used for identifying the fault light state of the home network terminal.

[0011] If the fault light state of the home network terminal is red, the red light photodiode is turned on to obtain a device fault signal of the home network terminal.

[0012] The device fault signal is transmitted to the signal input end of the NOR gate according to the first adaptive resistor.

[0013] Preferably, the NOR gate is used for collecting the device fault signal from the red light photodiode, and is also used for receiving other device fault signals from the home network terminal and controlling the relay state of the relay.

[0014] The relay state includes an off state and an on state.

[0015] Preferably, the relay is used for controlling a terminal device state of the home network terminal, and the terminal device state includes a power-on state and a power-off state.

[0016] The power-on state of the home network terminal corresponds to the on state of the relay.

[0017] The power-off state of the home network terminal corresponds to the off state of the relay.

[0018] In summary, the beneficial effects of the present application are:

[0019] 1.The application sets up a fault signal acquisition unit, a fault signal processing unit and a device self-recovery execution unit. The fault signal acquisition unit includes a red light photosensitive diode and a first adaptive resistor, and is used to collect the device fault signal of the home network terminal. The fault signal processing unit includes an NOR gate, and is used to collect the device fault signal and perform signal identification processing on the device fault signal. The device self-recovery execution unit includes a relay and a second adaptive resistor, and is used to control the terminal device state of the home network terminal, so that when the home optical modem / router / set-top box appears a device hanging / standby failure, the device can restart itself and restore the service function.

[0020] 2.The application improves the user experience: when the home optical modem / router / set-top box device appears a hanging / standby failure, it can quickly restart itself and restore the service function, avoiding long-term network interruption of the user.

[0021] 3.The application reduces the operation and maintenance cost of the telecommunication operator and the device provider: the self-restart of the home optical modem / router / set-top box device after the restoration of the function can effectively avoid user complaints, reduce the number and time of on-site maintenance of the operation and maintenance personnel, and reduce the replacement frequency of the device.

[0022] 4.The application has very low additional cost: only a red light photosensitive diode, an NOR gate, a relay and two adaptive resistors are needed, which almost does not increase the manufacturing cost of the device.

[0023] 5.The application has high scalability: since the NOR gate has multiple input ports, the home optical modem / router / set-top box device can input different fault signals into the input ports of the NOR gate, so that the device can restart and restore itself in time when these different fault signals appear. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a system structure diagram of a control system of a self-recovery circuit of a home network terminal.

[0025] Fig. 2 It is a system circuit diagram of a self-recovery circuit of a home network terminal.

[0026] In the figure: 1, fault signal acquisition unit; 11, red light photosensitive diode; 12, first adaptive resistor; 2, fault signal processing unit; 21, NOR gate; 3, device self-recovery execution unit; 31, relay; 32, second adaptive resistor. DETAILED DESCRIPTION

[0027] The application will be further described below. Figs. 1-2 The application will be further described below.

[0028] The embodiment of the present application discloses a self-recovery circuit of a home network terminal.

[0029] Referring to Figs. 1-2 The self-recovery circuit of the home network terminal comprises a fault signal acquisition unit 1, a fault signal processing unit 2 and a device self-recovery execution unit 3.

[0030] The fault signal acquisition unit 1 comprises a red light photosensitive diode 11 and a first adaptive resistor 12, and is used for acquiring a device fault signal of the home network terminal.

[0031] The fault signal processing unit 2 comprises an NOR gate 21, and is used for collecting the device fault signal and performing signal identification processing on the device fault signal.

[0032] The device self-recovery execution unit 3 comprises a relay 31 and a second adaptive resistor 32, and is used for controlling a terminal device state of the home network terminal.

[0033] In some embodiments, the home network terminal is a home optical modem / router / set top box and the like in actual application.

[0034] Referring to Fig. 1 and Fig. 2 The positive electrode of the red light photosensitive diode 11 is connected with an external power supply, the negative electrode of the red light photosensitive diode 11 is connected with one end of the first adaptive resistor 12, and the negative electrode of the red light photosensitive diode 11 is also connected with a signal input end of the NOR gate 21; the other end of the first adaptive resistor 12 is grounded; the signal input end of the NOR gate 21 is also connected with the home network terminal; the signal output end of the NOR gate 21 is connected with one end of the relay 31; the other end of the relay 31 is connected with the second adaptive resistor 32; the other end of the second adaptive resistor 32 is grounded; the relay 31 is also connected with the external power supply; the other end of the relay 31 is connected with the home network terminal through a device power line; and the home network terminal is provided with a fault lamp.

[0035] In some embodiments, the fault signal acquisition unit 1 includes a red light photodiode 11 and a first adaptive resistor 12. The positive electrode of the red light photodiode 11 is connected to an external power supply, and the negative electrode is connected to one end of the first adaptive resistor 12, while the negative electrode output is connected to one signal input end of the NOR gate 21. The other end of the first adaptive resistor 12 is connected to the ground. The light-sensitive part of the red light photodiode 11 should be aligned with the red fault light of the home optical modem / router / set-top box. When the red fault light of the device is not on, the red light photodiode 11 is blocked, and its negative electrode is at low voltage, i.e., the input end of the NOR gate 21 is at low voltage. When the red fault light of the device is on, the red light photodiode 11 is turned on, and its negative electrode is at high voltage, i.e., the input end of the NOR gate 21 is at high voltage, indicating that the device has a fault, and the home network terminal has a device fault signal.

[0036] In some embodiments, the fault signal processing unit 2 is implemented by a NOR gate 21. One input end of the NOR gate 21 is connected to the negative electrode of the red light photodiode 11. When there is no other device fault signal to be connected, the other input end of the NOR gate 21 can be suspended. When other device fault signals need to be connected for expansion, the other input end of the NOR gate 21 can be directly connected to other fault signal lines, but it is necessary to ensure that the fault signal line is at high voltage when there is a corresponding fault. The NOR gate 21 can be implemented by internal operation to output low voltage at the output end when there is one or more fault signals at the input end. At this time, the relay state of the relay 31 is in the open state. Only when there is no fault signal at all input ends, the output end of the NOR gate 21 is at high voltage, and the relay state of the relay 31 is in the closed state.

[0037] In some embodiments, the device self-recovery execution unit 3 is composed of a relay 31 and a second adaptive resistor 32. When there is at least one device fault signal at the signal input end of the NOR gate 21, the output end of the NOR gate 21 is at low voltage. At this time, there is no current through the internal coil of the relay 31, the switch of the relay 31 is open, and the relay state of the relay 31 is in the open state. At this time, the external power supply cannot supply power to the home network terminal, thereby realizing the shutdown of the device of the home network terminal. After the device of the home network terminal is shut down, the fault light of the home network terminal is off, the red light photodiode 11 is blocked, and the negative electrode outputs low voltage. The input end of the NOR gate 21 is at low voltage. At this time, there is no device fault signal at the signal input end of the NOR gate 21. After internal operation of the NOR gate 21, the output end is at high voltage, so that the relay state of the relay 31 is in the closed state, the internal coil of the relay 31 has current passing through, the switch of the relay 31 is closed, the power supply to the device of the home network terminal is realized, and the home network terminal completes the restart self-recovery.

[0038] Referring to Fig. 2 , the red light photodiode 11 is used to identify the fault light state of the home network terminal;

[0039] When the fault light state of the home network terminal is red, the red light photosensitive diode 11 is turned on to obtain the device fault signal of the home network terminal;

[0040] The device fault signal is transmitted to the signal input end of the NOR gate 21 through the first adaptive resistor 12.

[0041] In some embodiments, the red light photosensitive diode 11 is used to identify the fault light state of the home network terminal. When the fault light of the home network terminal is red, it is identified that the device has failed. At this time, the red light photosensitive diode 11 receives red light, so that the red light photosensitive diode 11 is turned on, and the terminal voltage is high voltage. At this time, the home network terminal has a device fault signal, and the device fault signal recognized by the first adaptive resistor 12 can be transmitted to an input port of the NOR gate 21. The device fault signal is the high voltage signal at the end of the red light photosensitive diode 11 in actual application.

[0042] Referring to Fig. 2 The NOR gate 21 is used to collect the device fault signal from the red light photosensitive diode 11, and is also used to receive other device fault signals from the home network terminal, and control the relay state of the relay 31.

[0043] The relay state includes an off state and an on state. Specifically, if there is at least one device fault signal at the signal input end of the NOR gate 21, the relay state of the relay 31 is controlled to be in the off state. If there is no device fault signal at the signal input end of the NOR gate 21, the relay state of the relay 31 is controlled to be in the on state.

[0044] In some embodiments, the NOR gate 21 is used to collect multiple fault signals and perform centralized fault identification. When there is one or more device fault signals (representing one or more fault points existing in the home network terminal) in the input end of the NOR gate 21, the output end of the NOR gate 21 becomes low voltage at this time. This low voltage is used to control the relay state of the relay 31 to be in the off state. When there is no device fault signal in the input end of the NOR gate 21 (representing that there is no fault point in the home network terminal), the output end of the NOR gate 21 becomes high voltage at this time. This high voltage is used to control the relay state of the relay 31 to be in the off state.

[0045] Referring to Fig. 2 The relay 31 is used to control the terminal device state of the home network terminal. The terminal device state includes a power-on state and a power-off state.

[0046] The power-on state of the home network terminal corresponds to the on state of the relay 31. Specifically, if the relay state of the relay 31 is in the on state, the terminal device state of the home network terminal is controlled to be in the power-on state.

[0047] The power-off state of the home network terminal corresponds to the open state of the relay 31, specifically, if the relay state of the relay 31 is the open state, the terminal equipment state of the home network terminal is controlled to be the power-off state.

[0048] In some embodiments, the relay 31 is used to control whether the home home network terminal is powered on, when the low voltage at the output end of the NOR gate 21 makes the relay 31 open, i.e. the relay state of the relay 31 is the open state, the home network terminal triggers power-off, so that the fault light of the home network terminal is extinguished, at this time the red light photodiode 11 does not receive red light, it cannot be turned on, the terminal voltage is low voltage, and this terminal low voltage signal is transmitted to one signal input port of the NOR gate 21, at this time all input ports of the NOR gate 21 are low voltage, so the output end of the NOR gate 21 becomes high voltage, the high voltage at the output end of the NOR gate 21 makes the relay 31 conduct, i.e. the relay state of the relay 31 is the conductive state, the second adaptive resistor 32 can ensure that the circuit will not be short-circuited, so as to power on the home network terminal again, realizing the restart operation of the home network terminal, i.e. the home optical modem / router / set top box equipment.

[0049] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A self-recovery circuit of a home network terminal, characterized by comprising: It comprises a fault signal acquisition unit (1), a fault signal processing unit (2) and a device self-recovery execution unit (3). The fault signal acquisition unit (1) comprises a red light photosensitive diode (11) and a first adaptive resistor (12), and is used for collecting the device fault signal of the home network terminal. The fault signal processing unit (2) comprises a NOR gate (21), and is used for collecting the device fault signal and performing signal identification processing on the device fault signal. The device self-recovery execution unit (3) comprises a relay (31) and a second adaptive resistor (32), and is used for controlling the terminal device state of the home network terminal.

2. The self-recovery circuit of the home network terminal according to claim 1, wherein: a positive electrode of the red light photosensitive diode (11) is connected with an external power supply, a negative electrode of the red light photosensitive diode (11) is connected with one end of the first adaptive resistor (12), and the negative electrode of the red light photosensitive diode (11) is also connected with a signal input end of the NOR gate (21); the other end of the first adaptive resistor (12) is grounded; the signal input end of the NOR gate (21) is also connected with the home network terminal; a signal output end of the NOR gate (21) is connected with one end of the relay (31); the other end of the relay (31) is connected with the second adaptive resistor (32); the other end of the second adaptive resistor (32) is grounded; the relay (31) is also connected with the external power supply; the other end of the relay (31) is connected with the home network terminal through a device power line; and the home network terminal is provided with a fault lamp.

3. The self-recovery circuit of the home network terminal according to claim 1, wherein: the red light photosensitive diode (11) is used for identifying the fault lamp state of the home network terminal; when the fault lamp state of the home network terminal is red, the red light photosensitive diode (11) is turned on to obtain the device fault signal of the home network terminal; and the device fault signal is transmitted to the signal input end of the NOR gate (21) according to the first adaptive resistor (12).

4. The self-recovery circuit of the home network terminal according to claim 1, wherein: the NOR gate (21) is used for collecting the device fault signal from the red light photosensitive diode (11), and is also used for receiving other device fault signals from the home network terminal and controlling the relay state of the relay (31); and the relay state comprises an off state and an on state.

5. The self-recovery circuit of the home network terminal according to claim 1, wherein: the relay (31) is used for controlling the terminal device state of the home network terminal, and the terminal device state comprises a power-on state and a power-off state; the power-on state of the home network terminal corresponds to the on state of the relay (31); and the power-off state of the home network terminal corresponds to the off state of the relay (31). ​ ​ ​ ​ ​ ​ ​ ​ ​

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