WO2022105628A1

WO2022105628A1 - Communication control method and apparatus, and optical network unit

Info

Publication number: WO2022105628A1
Application number: PCT/CN2021/129064
Authority: WO
Inventors: 张景伟; 徐荣华; 张冲
Original assignee: 华为技术有限公司
Priority date: 2020-11-18
Filing date: 2021-11-05
Publication date: 2022-05-27
Also published as: CN114520892A; CN114520892B

Abstract

Disclosed are a communication control method and apparatus, and an optical network unit, which belong to the field of broadcast televisions. The method comprises: acquiring a connection state of a host and a radio frequency (RF) module, wherein the host is connected to a BOSA on board (BOB) module; and after the connection state of the host and the RF module is determined to be a disconnected state, at least one module in an ONU executing at least one of sending state indication information, stopping supplying power to the RF module and stopping data outputting of the RF module, wherein the state indication information is used for indicating that the connection state of the host and the RF module is in the disconnected state. By means of the present application, the reliability of an ONU can be improved. The present application is used for the transmission of network data and broadcast television data.

Description

Communication control method, device and optical network unit

This application claims the priority of the Chinese patent application with the application number 202011294953.5 and the invention title "communication control method, device and optical network unit" filed on November 18, 2020, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the field of radio and television, and in particular, to a communication control method, device and optical network unit.

Background technique

A Community Antenna Television (CATV) system is a broadcast television system that includes a broadcast television data transmitter, an Optical Line Terminal (OLT), and an Optical Network Unit (ONU). After the radio and television data provided by the radio and television data transmitter and the network data provided by the OLT are converted into two optical signals, they are synthesized into one optical signal by means of wavelength division multiplexing (WDM), which is transmitted to the optical fiber. The ONU, based on the acquired optical signal processing, obtains the electrical signal corresponding to the broadcast television data and the electrical signal corresponding to the network data.

Among them, the ONU is also called an optical network terminal, which includes a radio frequency (Radio Frequency, RF) module (also called a CATV module) and a host. The host is provided with an optical device-on-board (BOSA On Board, BOB) module, and the RF module is used to obtain And output the electrical signal corresponding to the radio and television data, the BOB module is used to acquire and output the electrical signal corresponding to the network data, and the host is used to provide the Internet access signal based on the electrical signal corresponding to the network data. The RF module is connected to the host through pin headers or cables, and the RF module works under the management of the host. However, since the connection between the RF module and the host is simple, it is easy to be attacked by physical attacks, causing the RF module to be disconnected, resulting in data loss of the RF module. Therefore, the reliability of the current ONU is low.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a communication control method, device, and optical network unit. The technical solution is as follows:

A first aspect provides a communication control method applied to an optical network unit ONU, the method comprising:

Obtain the connection status between the host and the radio frequency RF module, and the host and the optical device are connected to the on-board BOB module; after determining that the connection status between the host and the RF module is disconnected, at least one module in the ONU executes the sending status At least one of indication information, stopping power supply to the RF module and stopping data output of the RF module, the state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state.

In the embodiment of this application, after the ONU detects that the connection state between the host and the RF module is disconnected, at least one module in the ONU executes the process of sending status indication information, stopping power supply for the RF module, and stopping the data output of the RF module. At least one of them can avoid the data loss of the RF module caused by physical attacks and improve the reliability of the ONU.

There are various ways for the ONU to obtain the connection state between the host and the radio frequency RF module, and the embodiments of the present application take the following two ways as examples for description.

In the first method, the ONU obtains the connection status between the host and the RF module through the heartbeat mechanism to determine whether to execute the target process. The process of acquiring the connection state between the host and the radio frequency RF module includes: acquiring the connection state between the host and the RF module through a heartbeat mechanism.

Based on the heartbeat mechanism, the ONU can obtain the connection status between the host and the RF module by monitoring the first heartbeat information and/or the second heartbeat information.

The embodiments of the present application are described by taking the following two implementation manners as examples: In the first implementation manner, the ONU determines the connection state between the host and the RF module by detecting the first heartbeat information. The process includes: detecting whether the host has received the first heartbeat information sent by the RF module; when detecting that the host has not received the first heartbeat information for m consecutive times, determining that the connection state between the host and the RF module is connected In the disconnected state, the m is a preset positive integer.

In the second implementation manner, the ONU determines the connection state between the host and the RF module by detecting the second heartbeat information. The process includes: detecting whether the RF module has received the second heartbeat information sent by the host; when it is detected that the RF module has not received the second heartbeat information for n consecutive times, determining that the connection state between the host and the RF module is The connection is disconnected, and n is a preset positive integer. Correspondingly, the process of stopping the data output of the RF module includes: controlling the RF module to stop the data output. By controlling the RF module to stop data output, when the connection between the host and the RF module is disconnected, the RF module can still be prevented from outputting electrical signals corresponding to broadcast and television data, and data loss caused by physical attacks can be prevented.

In the second way, the ONU determines whether to execute the target process by reading the information of the RF module on the control line. Then the process of obtaining the connection state of the host and the radio frequency RF module includes: reading the information of the RF module through the control line between the host and the RF module; when the information read of the RF module is empty, determining the host The connection state with the RF module is disconnected.

Corresponding to the first implementation manner and the second manner of the aforementioned first manner, the sending the status indication information includes: controlling the host to send the status indication information; the stopping of supplying power to the RF module includes: controlling the power supply in the ONU Stop powering this RF module.

The host includes a power supply control circuit and the power supply, the power supply control circuit is connected to the power supply, and controlling the power supply in the ONU to stop supplying power to the RF module includes: controlling the power supply to stop supplying power to the RF module through the power supply control circuit .

The state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state, and the state indication information may be alarm information. In an optional example, the host sends the status indication information to the OLT through the BOB module, so that the OLT notifies the administrator of the communication system. The status indication information may be sent to the OLT in the form of the aforementioned transmitted optical signal. In another optional example, the host is further connected with an alarm module, and the host sends the status indication information through the alarm module to warn others around the ONU to stop physical attacks on the ONU. For example, the alarm module may be a flasher and/or a sounder (eg, a horn).

By sending out status indication information, when the connection between the host and the RF module is disconnected, the administrator can be notified of the abnormal connection status between the host and the RF module, so that the administrator can control the ONU and prevent physical attacks. data loss. Or, warn others around the ONU to stop the physical attack on the ONU, so as to reduce the data loss caused by the physical attack.

By controlling the power supply to stop supplying power to the RF module, when the connection state between the host and the RF module is disconnected, the power-off of the RF module can be realized, so that the RF module stops working and prevents the RF module from still outputting the power corresponding to the broadcast TV data. signal to prevent data loss caused by physical attacks.

Optionally, the method further includes: after detecting that the default output state of the RF module is an on state, updating the default output state of the RF module to an off state.

By setting the default output state of the RF module to an off state, data loss of the RF module caused by physical attacks can be reduced.

In an optional manner, the method further includes: reading a first flag register, where the first flag register is used to indicate whether the RF module supports the heartbeat mechanism; after reading the first flag register, it indicates that the RF module supports the heartbeat mechanism heartbeat mechanism, and after receiving the instruction indicating to open the heartbeat mechanism, update the state of the heartbeat switch register to the open state, and the open state of the heartbeat switch register is used to indicate the opening of the heartbeat mechanism; read the second flag register, the second flag The register is used to indicate whether the heartbeat mechanism of the RF module is successfully turned on; after reading the second flag register to indicate that the heartbeat mechanism of the RF module is turned on successfully, read the heartbeat register of the RF module, and the heartbeat register is used to write Heartbeat information generated during the execution of the heartbeat mechanism. In this way, the ONU realizes the function compatibility of the conventional ONU by detecting one or more flag registers.

In a second aspect, the present application provides a communication control device. The communication control device is applied to an ONU. The communication control device may include at least one module, and the at least one module may be used to implement the first aspect or various aspects of the first aspect. It is possible to implement the provided communication control method.

In a third aspect, the present application provides an optical network unit ONU, the ONU includes: an optical device on-board BOB module, a host and a radio frequency RF module, the host is connected to the BOB module, the ONU further includes: a processor and a memory; the The memory is used to store computer instructions; the processor is used to execute the computer instructions stored in the memory, so that the ONU executes the first aspect or the communication control method provided by various possible implementations of the first aspect.

In the embodiment of the present application, the host and the RF module are connected through a connector, and the connector includes an effective connection structure for transmitting information and a redundant connection structure not used for transmitting information. For example, the effective connection structure is a pin header for transmitting information, and the redundant connection structure is a redundant pin header. Thus, the connector may include double pin headers; or the effective connection structure is a cable for transmitting information, and the redundant connection structure is The structure is redundant cable, so the connector can include double cable.

In a fourth aspect, the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and the computer instructions instruct the computer device to execute the above-mentioned first aspect or various possible implementations of the first aspect. method.

In a fifth aspect, the present application provides a computer program product comprising computer instructions stored in a computer-readable storage medium. The processor of the computer device may read the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, causing the computer device to perform the method provided by the first aspect or various possible implementations of the first aspect.

In a sixth aspect, the present application provides a chip, which may include a programmable logic circuit and/or program instructions, which are used to implement the communication control method according to any one of the first aspects when the chip is running.

Description of drawings

FIG. 1 is a schematic diagram of an application environment of a communication system 10 involved in a communication control method provided by an embodiment of the present application;

2 is a schematic diagram of an ONU provided by an embodiment of the present application;

3 is a schematic structural diagram of an ONU provided by an embodiment of the present application;

4 is a schematic flowchart of a communication control method provided by an embodiment of the present application;

5 is a schematic structural diagram of another ONU provided by an embodiment of the present application;

6 is a schematic flowchart of a communication control method provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a communication control apparatus provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another communication control apparatus provided by an embodiment of the present application;

9 is a schematic structural diagram of another communication control apparatus provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of another ONU provided by an embodiment of the present application.

Detailed ways

In order to make the principles and technical solutions of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of an application environment of a communication system 10 involved in a communication control method provided by an embodiment of the present application. For example, the communication system 10 is a CATV system. As shown in FIG. 1 , the communication system 10 includes: a broadcast television data transmitter 101 , an OLT 102 , a processing module 103 and an ONU 104 . The broadcast TV data transmitter 101 is used for outputting broadcast TV data; the OLT102 is used for outputting network data; the processing module 103 is used for converting the broadcast TV data provided by the broadcast TV data transmitter 101 and the network data provided by the OLT102 into two-way optical signals , synthesized into one optical signal by WDM, and the optical signal is transmitted to ONU104 by optical fiber; ONU104 is used to process the obtained optical signal to obtain the electrical signal corresponding to the radio and television data and the electrical signal corresponding to the network data. The ONU 104 is also used to output the electrical signal corresponding to the broadcast TV data to an analog-to-digital conversion device (such as a set-top box) or a TV set connected to the TV set, so that the TV set can play the broadcast TV data processed by the electric signal; The electrical signal corresponding to the network data provides the Internet access signal.

FIG. 2 is a schematic diagram of an ONU 104 provided by an embodiment of the present application. ONU104 includes RF1041, BOB module 1042 and host 1043. RF module 1041 is used to acquire and output the electrical signal corresponding to the broadcast television data; BOB module 1042 is used to acquire and output the electrical signal corresponding to the network data; host 1043 and BOB module 1042 Connection, the host 1043 is used to provide the Internet access signal based on the electrical signal corresponding to the network data output by the BOB module 1042 . The RF module 1041 is connected to the host 1043 through a connector. The connector may include a pin header or a cable. For example, the connector is a 20-pin (pin) header. FIG. 2 is a schematic diagram of the connection between the RF module and the host through a cable. The connector includes a control line, for example, the control line is a two-wire serial bus (Inter-Integrated Circuit, I2C). The host manages the RF module through the control line. For example, the management of the RF module by the host includes: parameter configuration of the RF module, output enable and/or switch control, and the like.

In the ONU 104, the host 1043 can be regarded as a master device, and the RF module 1041 can be regarded as a slave device. The RF module 1041 works under the management of the host 1043 . The host 1043 is further configured to receive the management data sent by the OLT 102 through the BOB module 1042, and manage the RF module 1041 based on the management data. For the transmission process of the management data from the OLT 102 to the RF module 1041, refer to the aforementioned network data transmission process.

It should be noted that a traditional ONU is provided with a three-way optical component (also called a three-way module), which integrates the functions of the aforementioned RF module 1041 and BOB module 1042, but first of all, the cost of the three-way optical component is high, and its manufacturing materials and The manufacturing cost of the components is relatively high; secondly, the analog circuit and the digital circuit in the three-way optical component are designed on a common board, and multiple shielding covers and absorbing materials need to be installed to reduce the problem of electromagnetic interference; thirdly, the volume of the three-way optical component is larger, and the miniaturization of ONU104 cannot be guaranteed.

In the ONU 104 provided in this embodiment of the present application, since the RF module 1041 and the BOB module 1042 are set separately (also called independent sets), the manufacturing cost of each module is greatly reduced compared to the three-way optical assembly; and the simulation in the RF module 1041 The circuit and the digital circuit in the BOB module 1042 are set separately, and the electromagnetic interference between them is less, and the number of shielding covers and wave absorbing materials to be set is reduced; in addition, the RF module 1041 and the BOB module 1042 are set separately, and the two The overall volume is smaller than the three-way optical component, thereby realizing the miniaturization of the ONU104.

FIG. 3 is a schematic structural diagram of an ONU 104 provided by an embodiment of the present application. The RF module 1041 includes one of a WDM module, a photoelectric conversion chip, a Low Noise Amplifier (LNA), an attenuator (ATT), a Power Amplifier (PA), an impedance matching module and a controller or more, wherein the WDM module, the photoelectric conversion chip, the LNA, the ATT, the PA and the impedance matching module are connected in sequence. The WDM module is used to divide the received optical signal into an optical signal corresponding to the radio and television data and an optical signal corresponding to the network data by means of WDM, and transmit the optical signal corresponding to the radio and television data to the photoelectric conversion chip. The optical signal corresponding to the network data is transmitted to a bidirectional optical subassembly (BOSA); the photoelectric conversion chip is connected to the voltage output terminal VCC, and is used to photoelectrically convert the received optical signal to obtain an electrical signal; the LNA is used to convert the received optical signal. The electrical signal is used for low-noise amplification; ATT is used to perform automatic attenuation control on the strength of the received electrical signal (the strength reflects the strength of the optical signal corresponding to the network data); PA is used to amplify the received optical signal; impedance The matching module is used to perform impedance matching on the received electrical signal, and output the impedance-matched electrical signal as the output signal of the RF module; the controller is connected to the ATT, and the controller is used to control the ATT, and the controller can be a micro-controller Unit (Microcontroller Unit, MCU). The control bus of the controller is connected to the host 1043 through pin headers or cables.

The BOB module 1042 includes BOSAs and drivers. Among them, BOSA includes an optical transmitting module (Transmitter Optical Subassembly, TOSA) and an optical receiving module (Receiver Optical Subassembly, ROSA). ROSA is used to receive the optical signal corresponding to the network data transmitted by the WDM module, and convert the received optical signal into an electrical signal. , and transmit the optical signal to the driver; TOSA is used to generate the emission optical signal under the control of the driver, and transmit the emission optical signal to the WDM module, and the WDM module transmits the emission optical signal through the optical fiber.

3 is a schematic structural diagram of an ONU provided by an embodiment of the present application. In actual implementation, the WDM module may not be located in the RF module. For example, it may be concentrated on the BOB module, the host, or other modules. The implementation of the present application This example is not repeated here.

It should be noted that the wavelengths of the optical signal corresponding to the aforementioned broadcast and television data, the optical signal corresponding to the network data, and the emitted optical signal are different. For example, the wavelength of the optical signal corresponding to the broadcast television data is 1550 nm (nanometer); the wavelength of the optical signal corresponding to the network data is 1490 nm, and the wavelength of the emitted optical signal is 1310 nm.

The host 1043 is connected to the BOB module 1042 , and in general, the BOB module 1042 is set on the host 1043 . The host 1043 is made of a printed circuit board (Printed Circuit Board, PCB), which is the main structure of the ONU, and may also be called a main board or a product board. The host may include a network interface (referred to as a network port), through which an Internet access signal can be provided based on an electrical signal corresponding to network data. The host may also include a controller and other devices (not shown).

As shown in Figure 2 and Figure 3, due to the simple connection between the RF module and the host, it is vulnerable to physical attacks, causing the RF module to be disconnected. For example, after the pin header or cable between the RF module 1041 and the host 1042 is disconnected intentionally or unintentionally, the RF module 1041 can run services independently, but is no longer managed by other devices. Specifically, the ONU can obtain and output the electrical signal corresponding to the radio and television data, that is, it can play the radio and television data normally, but cannot monitor the viewing time and calculate the television fee. Therefore, the reliability of the current ONU is low.

In the embodiment of the present application, the connection state between the host and the RF module includes two states, namely, a connection maintained state and a connection disconnected state. Among them, the connection state is the normal connection state. When the connection state between the host and the RF module is the connection state, it means that the host and the RF module have not been physically attacked; the disconnected state is the abnormal connection state. When the connection status of the RF module is disconnected, it means that the host and the RF module may be physically attacked.

Based on the foregoing principles, in this embodiment of the present application, after the ONU obtains the connection status between the host and the RF module and determines that the connection status between the host and the RF module is disconnected, at least one module in the ONU executes the target process. The target process includes at least one of: sending status indication information, stopping power supply to the RF module, and stopping data output of the RF module. The state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state. In this way, data loss caused by the disconnection of the RF module in the ONU can be avoided, thereby improving the reliability of the ONU. There are various ways for the ONU to obtain the connection state between the host and the radio frequency RF module, and the embodiment of the present application uses the following two ways as examples to describe the communication control method.

In the first method, the ONU obtains the connection status between the host and the RF module through the heartbeat mechanism to determine whether to execute the target process. 4 is a schematic flowchart of a communication control method provided by an embodiment of the present application, and the method includes:

S401. The ONU obtains the connection state between the host and the RF module through the heartbeat mechanism.

The heartbeat mechanism is a working mechanism completed by the host in the ONU and the RF module. The main implementation method is to detect whether the connection is normal by sending specific messages at intervals. When the connection state between the host and the RF module is in the connected state, that is, when the two can work normally, the execution process of the heartbeat mechanism includes: the RF module sends the first heartbeat information to the host; the host receives the first heartbeat information after receiving the first heartbeat information. Then, the second heartbeat information is sent to the RF module. Or, the host sends the second heartbeat information to the RF module, and the RF module sends the first heartbeat information to the host after receiving the second heartbeat information. Based on the heartbeat mechanism, the ONU can obtain the connection status between the host and the RF module by monitoring the first heartbeat information and/or the second heartbeat information.

The embodiments of the present application are described by taking the following two implementation manners as examples:

In a first implementation manner, the ONU determines the connection state between the host and the RF module by detecting the first heartbeat information. The process includes:

A1. Detect whether the host receives the first heartbeat information sent by the RF module.

The ONU starts the heartbeat mechanism after determining that the start condition of the heartbeat mechanism is reached. Exemplarily, the conditions for enabling the heartbeat mechanism include: the ONU is provided with a heartbeat switch register, and the state of the heartbeat switch register is an open state; or, the heartbeat mechanism opening period is reached, or, an instruction instructing to open the heartbeat mechanism is received, the instruction The instruction to turn on the heartbeat mechanism may be an instruction received by the host, which may be sent by the OLT, or may be triggered by a user, for example, triggered by a control button set on the ONU.

After determining that the heartbeat mechanism of the ONU is enabled, the ONU detects whether the host receives the first heartbeat information sent by the RF module.

A2. When it is detected that the host has not received the first heartbeat information for m consecutive times, determine that the connection state between the host and the RF module is a disconnected state, and m is a preset positive integer.

For example, after the heartbeat mechanism starts, the ONU periodically detects the first heartbeat information, and the duration of each detection period is equal. After detecting that the host does not receive the first heartbeat information for m consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state. Exemplarily, m is at least 2, and the probability of false detection can be reduced through multiple cycles of detection, and the accuracy of the determined connection state can be ensured.

In an optional implementation manner, the ONU may implement periodic detection of the first heartbeat information through a timer. For example, the timing duration of the timer is set to be S1 seconds, and the timing duration is the duration of one detection cycle. It is detected whether the host computer receives the first heartbeat information sent by the RF module within the time period of the timer, and the detection result is the detection result of one detection cycle.

A3. When it is detected that the host computer receives the first heartbeat information, it is determined that the connection state between the host computer and the RF module is the connection maintaining state.

Referring to A2, if it is detected that the host receives the first heartbeat information in a certain detection period, the ONU determines that the connection state between the host and the RF module is the connection maintained state in the detection period.

In an optional manner, the ONU includes a first controller for controlling the host, and the first controller controls the host to perform the aforementioned A1 to A3. Optionally, the first controller is located on the host.

The aforementioned first heartbeat information may be heartbeat information actively sent by the RF module, or may be heartbeat information sent after being triggered by the second heartbeat information sent by the host. It is assumed that the first heartbeat information is the heartbeat information sent after being triggered by the second heartbeat information sent by the host, the RF module is provided with a heartbeat register, the first heartbeat information is Y, and the second heartbeat information is X. Then, after the heartbeat mechanism of the first controller is started, the number of disconnections F=0 is initialized. Then perform A1 to A3. Wherein, the aforementioned A1 to A3 can be respectively replaced by the following A11 to A13:

A11. After writing the second heartbeat information: X to the heartbeat register of the RF module, the first controller periodically detects whether the RF module writes back the first heartbeat information: Y.

A21. In each detection cycle, if the first controller does not detect the first heartbeat information written back by the RF module: Y, update the number of disconnections, so that the updated number of disconnections is F+1, and enter the next During the detection period, until the updated number of disconnected pipes is equal to m, it is determined that the connection state between the host and the RF module is a disconnected state.

A31. After detecting the first heartbeat information: Y written back by the RF module in any detection period, the first controller determines that the connection state between the host and the RF module is the connection maintaining state.

It should be noted that, after determining the connection state between the host and the RF module, the first controller may also perform other steps according to specific scenarios. In the first optional manner, after determining that the connection state between the host and the RF module is in the connection hold state, the first controller may re-initialize the disconnection number F=0, and repeatedly execute the aforementioned A11 to A31 to implement the heartbeat mechanism continuous execution, so as to continuously monitor the connection status between the host and the RF module. In the second optional manner, after the first controller determines that the connection state between the host and the RF module is the connection maintained state, the first controller may turn off the heartbeat mechanism of the first controller until the enabling condition of the heartbeat mechanism is reached again. In a third optional manner, after determining that the connection state between the host and the RF module is a disconnected state, the first controller may subsequently execute S402 to turn off the heartbeat mechanism until the enabling condition of the heartbeat mechanism is reached again. Through the second optional method and the third optional method, the first controller can turn off the heartbeat mechanism of the first controller after reaching the specified condition, so as to reduce the power consumed by the continuous execution of the heartbeat mechanism and save the power consumption of the ONU. energy consumption.

In the second implementation manner, the ONU determines the connection state between the host and the RF module by detecting the second heartbeat information. The process includes:

B1. Detect whether the RF module receives the second heartbeat information sent by the host.

The ONU starts the heartbeat mechanism after determining that the start condition of the heartbeat mechanism is reached. Exemplarily, the conditions for enabling the heartbeat mechanism include: the ONU is provided with a heartbeat switch register, and the state of the heartbeat switch register is an open state; or, the heartbeat mechanism opening period is reached; The instruction to turn on the heartbeat mechanism may be an instruction received by the RF module, which may be sent by the host, or may be triggered by the user, for example, triggered by a control button set on the ONU.

After determining that the heartbeat mechanism of the ONU is enabled, the ONU detects whether the RF module receives the second heartbeat information sent by the host.

B2. When it is detected that the RF module has not received the second heartbeat information for n consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state, and n is a preset positive integer.

For example, after the heartbeat mechanism starts, the ONU periodically detects the second heartbeat information, and the duration of each detection period is equal. After detecting that the RF module has not received the second heartbeat information for n consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state. Exemplarily, n is at least 2, and the probability of false detection can be reduced through multiple cycles of detection, and the accuracy of the determined connection state can be ensured.

In an optional implementation manner, the ONU may implement periodic detection of the second heartbeat information through a timer. For example, the timing duration of the timer is set to be S2 seconds, and the timing duration is the duration of one detection cycle. Detect whether the RF module receives the second heartbeat information sent by the host within the time period of the timer, and the detection result is the detection result of one detection cycle.

B3. When it is detected that the RF module receives the second heartbeat information, it is determined that the connection state between the host and the RF module is the connection maintaining state.

Referring to B2, if it is detected that the RF module receives the second heartbeat information in a certain detection period, the ONU determines that the connection state between the host and the RF module is the connection maintained state in the detection period.

In an optional manner, the ONU includes a second controller for controlling the RF module, and the second controller controls the RF module to perform the aforementioned B1 to B3. Optionally, the second controller is located on the RF module. For example, the second controller may be the controller in the RF module 1041 in FIG. 3 , or may be a newly added controller in the RF module 1041 .

The aforementioned second heartbeat information may be heartbeat information actively sent by the host, or may be heartbeat information sent after being triggered by the first heartbeat information sent by the RF module. Assuming that the second heartbeat information is heartbeat information actively sent by the host, a heartbeat register is set in the RF module, the first heartbeat information is Y, and the second heartbeat information is X. Then, after the heartbeat mechanism of the second controller is started, the number of disconnected pipes G=0 is initialized. Then execute B1 to B3. Wherein, the aforementioned B1 to B3 can be respectively replaced with the following B11 to B13:

B11. The second controller periodically detects whether the host writes the second heartbeat information: X in the heartbeat register.

B21. In each detection cycle, if the second controller does not detect the second heartbeat information written by the host in the heartbeat register: X, update the number of disconnections so that the updated number of disconnections is G+1, and enter In the next detection cycle, until the updated number of disconnected pipes is equal to n, it is determined that the connection state between the host and the RF module is a disconnected state.

B31. After detecting that the host writes the second heartbeat information: X in the heartbeat register in any detection period, the second controller determines that the connection state between the host and the RF module is a connection hold state.

It should be noted that, after determining the connection state between the host and the RF module, the second controller may also perform other steps according to specific scenarios. In the first alternative, after the second controller determines that the connection state between the host and the RF module is in the connected state, the second controller may re-initialize the disconnected number G=0, and repeatedly execute the foregoing B11 to B31 to implement the heartbeat mechanism continuous execution, so as to continuously monitor the connection status between the host and the RF module. In the second optional manner, after the second controller determines that the connection state between the host and the RF module is the connection maintained state, the second controller may turn off the heartbeat mechanism of the second controller until the enabling condition of the heartbeat mechanism is reached again. Through the second optional method, the second controller can turn off the heartbeat mechanism of the second controller after reaching the specified condition, so as to reduce the power consumption for the continuous execution of the heartbeat mechanism, and save the energy consumption of the ONU.

In this embodiment of the present application, the ONU may execute the foregoing first implementation manner and second implementation manner synchronously. That is, the ONU determines the connection state between the host and the RF module by detecting the first heartbeat information and the second heartbeat information respectively. In this way, the aforementioned S1 and the aforementioned S2 may be equal, and the aforementioned m and n may be the same, so as to achieve the consistency of the detection results of the connection status on the RF module side and the host side.

It is worth noting that the aforementioned shutdown action of the heartbeat mechanism can be initiated by the host according to the actual situation (for example, initiated at any time). After the host initiates the shutdown action of the heartbeat mechanism, both the host and the RF module exit the heartbeat mechanism.

S402. After the ONU determines that the connection state between the host and the RF module is a disconnected state, at least one module in the ONU executes the target process.

Referring to S401, since the ONU may include a first controller for controlling the host and/or a second controller for controlling the RF module, for controllers controlling different modules in the ONU, the modules to be controlled and the target processes to be executed are different.

For example, corresponding to the first implementation manner of the foregoing S401, the module controlled by the first controller is the host, and the executed target process includes sending status indication information and/or stopping power supply to the RF module. The process of sending the status indication information includes: controlling the host to send the status indication information; and stopping the power supply for the RF module includes: controlling the power supply in the ONU to stop supplying power to the RF module.

The state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state, and the state indication information may be alarm information. In an optional example, the host sends the status indication information to the OLT through the BOB module, so that the OLT notifies the administrator of the communication system. Referring to FIG. 3 , the status indication information may be sent to the OLT in the form of the aforementioned transmitted optical signal. In another optional example, the host is further connected with an alarm module, and the host sends the status indication information through the alarm module to warn others around the ONU to stop physical attacks on the ONU. For example, the alarm module may be a flasher and/or a sounder (eg, a horn).

By issuing status indication information, when the connection between the host and the RF module is disconnected, the administrator can be notified of the abnormal connection status between the host and the RF module, so that the administrator can control the ONU and prevent physical attacks. data loss. Or, warn others around the ONU to stop the physical attack on the ONU, so as to reduce the data loss caused by the physical attack.

FIG. 5 is a schematic structural diagram of another ONU 104 provided by an embodiment of the present application. The host 1043 includes a power supply control circuit 1043a and a power supply 1043b. The power supply control circuit 1043a is connected to the power supply 1043b, and the power supply 1043b is connected to the RF module 1041. For example, the power supply 1043b is connected to the RF module 1041 through a power cable. In an optional manner, as shown in FIG. 5 , the host 1043 further includes a first controller 1043c, the first controller 1043c is connected to the power supply control circuit 1043a, and the first controller 1043c controls the power supply control circuit 1043a to The control power supply 1043a stops supplying power to the RF module 1041 . By controlling the power supply 1043a to stop supplying power to the RF module 1041, when the connection state between the host and the RF module is disconnected, the RF module can be powered off, thereby making the RF module stop working and preventing the RF module from still outputting broadcast TV data corresponding to electrical signals to prevent data loss caused by physical attacks.

It should be noted that when others physically attack the ONU, in order to ensure the normal operation of the RF module, the power cord will not be cut. Therefore, the connection between the power supply 1043b and the RF module 1041 will not be disconnected, and the ONU can control the power supply 1043a to stop supplying power to the RF module 1041 through the power supply control circuit 1043a.

For another example, corresponding to the second implementation manner of S401, the module controlled by the second controller is the RF module, and the target process to be executed includes: stopping the data output of the RF module. The process of stopping the data output of the RF module includes: controlling the RF module to stop the data output. For example, the RF module has a status identification bit, and the second controller may set the status identification bit of the RF module to an output-disabled state, thereby controlling the RF module to stop data output.

By controlling the RF module to stop data output, when the connection between the host and the RF module is disconnected, the RF module can still be prevented from outputting electrical signals corresponding to broadcast TV data, and data loss caused by physical attacks can be prevented.

In the embodiment of the present application, the ONU is further provided with one or more flag registers, and the ONU realizes the function compatibility of the traditional ONU by detecting the flag registers. For example, before the aforementioned S401, the ONU can also perform the following register detection process:

C1. Read the first flag register, where the first flag register is used to indicate whether the RF module supports the heartbeat mechanism.

C2. After reading the first flag register indicating that the RF module supports the heartbeat mechanism, and after receiving the instruction indicating to open the heartbeat mechanism, update the state of the heartbeat switch register to the open state, and the open state of the heartbeat switch register is used to indicate the open state Heartbeat mechanism.

For example, the instruction for instructing to enable the heartbeat mechanism may be an application layer instruction issued by the OLT. It should be noted that, after reading the first flag register indicating that the RF module supports the heartbeat mechanism, and receiving an instruction indicating not to enable the heartbeat mechanism, the ONU stops operating.

C3. Read the second flag register, where the second flag register is used to indicate whether the heartbeat mechanism of the RF module is successfully enabled.

C4. After reading the second flag register indicating that the heartbeat mechanism of the RF module is successfully enabled, read the heartbeat register of the RF module, and the heartbeat register is used to write the heartbeat information generated during the execution of the heartbeat mechanism.

It is worth noting that, after one or more times of reading the second flag register to indicate that the heartbeat mechanism of the RF module fails to be enabled, the ONU can stop the action.

Optionally, the heartbeat register is used to write the aforementioned first heartbeat information or second heartbeat information.

Exemplarily, the aforementioned first flag register, heartbeat switch register, second flag register, and heartbeat register may be set in the RF module, for example, in the controller of the RF module.

As mentioned above, the host 1043 and the RF module 1041 are connected through a connector, and the connector includes an effective connection structure for transmitting information and a redundant connection structure not used for transmitting information. For example, the effective connection structure is a pin header for transmitting information, and the redundant connection structure is a redundant pin header. Thus, the connector may include double pin headers; or the effective connection structure is a cable for transmitting information, and the redundant connection structure is The structure is redundant cable, so the connector can include double cable. Among them, the effective connection structure and the easy connection structure can be staggered one by one or two by two or irregularly arranged, so as to create difficulties for others who want to attack the ONU, thereby increasing the difficulty of the attack and reducing the probability of successful attack. For example, an effective connection structure includes a power cord and a management cord. When others physically attack the ONU, the power cord cannot be cut in order to ensure the disconnection of the RF module. Adding redundant connection structures makes it impossible for others to distinguish which connection structures can be cut and which cannot be cut, thereby increasing the attack difficulty of the connection structure and improving the reliability of the connector.

To sum up, in this embodiment of the present application, after the ONU detects that the connection state between the host and the RF module is disconnected, at least one module in the ONU executes sending status indication information, stops supplying power to the RF module, and stops the RF module. At least one of the data outputs of the module avoids the data loss of the RF module caused by physical attacks, and improves the reliability of the ONU.

In the second way, the ONU determines whether to execute the target process by reading the information of the RF module on the control line. 6 is a schematic flowchart of a communication control method provided by an embodiment of the present application, and the method includes:

S501, the ONU reads the information of the RF module through the control line between the host and the RF module. Execute S502 or S504.

Exemplarily, S501 may be performed by a first controller that controls the host. The first controller can be located on the host, so that the information of the RF module can be read through the control line between the host and the RF module.

S502. When the information read from the RF module is empty, the ONU determines that the connection state between the host and the radio frequency RF module is a disconnected state. Execute S503.

After the ONU is started, it reads the information of the RF module through the control line. If the information of the RF module cannot be read, that is, the information of the read RF module is empty, indicating that the control line between the host and the RF module is not connected. , the connection state between the host and the RF module is disconnected.

In an optional implementation manner, the ONU determines that the connection state between the host and the radio frequency RF module is a disconnected state when the information of the RF module read continuously for d times is empty. d is a preset positive integer. For example, d≥2.

For example, after the ONU is started, it periodically reads the information of the RF module through the control line, and the duration of each detection period is equal. After the information of the RF module is read continuously for d times, it is determined that the connection state between the host and the RF module is a disconnected state. Through multiple cycles of detection, the probability of false detection can be reduced, and the accuracy of the determined connection state can be ensured.

It is worth noting that, after the ONU determines that the connection state between the host and the RF module is the connection hold state, the ONU can stop the periodic reading process of the information of the RF module, until the enabling condition of the reading process is reached again. Alternatively, after the subsequent execution of S503, the periodic reading process of the information of the RF module is stopped until the enabling condition of the reading process is reached again. In the foregoing manner, the ONU can stop the periodic reading process of the information of the RF module after reaching the specified condition, so as to reduce the power consumed by the continuous execution of the reading process and save the energy consumption of the ONU.

S503: After the ONU determines that the connection state between the host and the RF module is a disconnected state, at least one module in the ONU executes the target process.

For the process of S503, reference may be made to the foregoing S402, which is not repeated in this embodiment of the present application.

S504 , when the information read from the RF module is not empty, the ONU determines that the connection state between the host and the radio frequency RF module is a connection hold state.

If the ONU reads the information of the RF module through the control line, that is, the information of the read RF module is not empty, it means that the control line between the host and the RF module is connected, and the connection status between the host and the RF module is The connection remains state.

In this embodiment of the present application, the ONU may also perform other control procedures according to specific scenarios. Exemplarily, before S401 or after S402, or before S501 or after S504, the ONU can also detect whether the default output state of the RF module is an on state; after detecting that the default output state of the RF module is an on state, Update the default output state of the RF module to the off state; after detecting that the default output state of the RF module is the off state, keep the default output state of the RF module unchanged. In an optional manner, after the ONU determines that the connection state between the host and the RF module is the connection keeping open state, the ONU detects whether the default output state of the RF module is the open state. For example, a default flag bit may be set in the RF module, the default flag bit is used to indicate the default output state of the RF module, and the ONU determines the default output state of the RF module by detecting the default flag bit.

Because before the ONU leaves the factory, in order to facilitate the ONU test, the default output state of the RF module is generally set to the open state, but after the ONU leaves the factory, if the default output state of the RF module is the open state, it is easy to cause physical attacks. Therefore, by setting the default output state of the RF module to the off state, the data loss of the RF module caused by physical attacks can be reduced.

It is worth noting that, after the default output state of the RF module is updated, it is usually necessary to keep the default output state. In an optional manner, the RF module further includes a memory, and the ONU saves the default output state of the RF module in the memory. Illustratively, the memory is flash memory.

For example, the ONU may also control the temporary output state of the RF module under the control of the OLT. The temporary output state includes an on state or an off state. The temporary output state refers to the state of the ONU in the period from one power-on to power-off. Compared with the aforementioned default output state, the temporary output state is maintained for a shorter period of time, which is a volatile state. For example, the ONU receives the application layer command issued by the OLT. When the application layer command indicates that the temporary output state of the RF module is on, the ONU controls the output signal of the RF module to start outputting; when the application layer command indicates the temporary output state of the RF module In the off state, the ONU controls the output signal of the RF module to stop outputting. The ONU does not store the temporary output state of the RF module in memory. After the ONU is powered off and then restarted, the output state of the RF module is the same as the default output state.

In the embodiment of the present application, the aforementioned first controller and the second controller may be controllers in the host and the RF module, respectively, and the functions corresponding to the aforementioned communication methods can be implemented by upgrading the software of the two controllers, without the need for The transformation of the hardware has effectively saved the hardware cost. And when the ONU controls the host side to send status indication information or stops supplying power to the RF module, and controls the RF module side to stop the data output of the RF module, the interlock between the host and the RF module can be realized, further reducing the data loss of the RF module, effectively improving the ONU reliability.

It should be noted that, the foregoing embodiments are all described by taking the foregoing communication control method applied to a physical attack prevention scenario as an example. In actual implementation, the communication control method can also be applied to other scenarios. For example, it is used in fault monitoring scenarios. When at least one of the RF module, the host and the control line fails, the occurrence of the failure can also be monitored by detecting the connection state between the host and the RF module. Since the faulty device cannot complete the normal work, the detection result is that the connection between the host and the RF module is disconnected. The ONU can prompt the administrator or user that the ONU is faulty by executing the above-mentioned target process. Repair in time.

7 is a schematic structural diagram of a communication control device 60 provided by an embodiment of the present application. The device is applied to an ONU, and the ONU is also called an optical modem. The device 60 includes:

The acquisition module 601 is used to acquire the connection status between the host and the radio frequency RF module, and the host is connected with the optical device on-board BOB module;

The execution module 602 is used for, after determining that the connection state between the host and the RF module is a disconnected state, at least one module in the ONU executes the sending of status indication information, stopping power supply for the RF module and stopping the operation of the RF module. At least one of data output, the state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state.

To sum up, in the embodiment of the present application, after the execution module detects that the connection state between the host and the RF module is disconnected, at least one module in the ONU executes the sending of status indication information, stops supplying power to the RF module, and stops. At least one of the data outputs of the RF module avoids data loss of the RF module caused by physical attacks, and improves the reliability of the ONU.

In an optional manner, the obtaining module 601 is configured to obtain the connection status between the host and the RF module through a heartbeat mechanism.

In an example, the obtaining module 601 is configured to: detect whether the host has received the first heartbeat information sent by the RF module; when detecting that the host has not received the first heartbeat information for m consecutive times, determine the The connection state between the host and the RF module is a disconnected state, and the m is a preset positive integer.

In another example, the obtaining module 601 is configured to: read the information of the RF module through the control line between the host and the RF module; when the read information of the RF module is empty, determine the host The connection state with the RF module is disconnected.

The execution module 602 is configured to: control the host to send status indication information; and/or control the power supply in the ONU to stop supplying power to the RF module.

Optionally, the host includes a power supply control circuit and the power supply, the power supply control circuit is connected to the power supply, and the execution module 602 is configured to: control the power supply to stop supplying power to the RF module through the power supply control circuit.

In an optional manner, the obtaining module 601 is used to: detect whether the RF module has received the second heartbeat information sent by the host; when it is detected that the RF module has not received the second heartbeat information for n consecutive times , it is determined that the connection state between the host and the RF module is a disconnected state, and the n is a preset positive integer. Exemplarily, the execution module 602 is configured to: control the RF module to stop data output.

FIG. 8 is a schematic structural diagram of another communication control apparatus 60 provided by an embodiment of the present application, and the apparatus 60 further includes:

The first update module 603 is configured to update the default output state of the RF module to an off state after detecting that the default output state of the RF module is an on state.

FIG. 9 is a schematic structural diagram of another communication control apparatus 60 provided by an embodiment of the present application, and the apparatus 60 further includes:

The first reading module 604 is used to read the first flag register, which is used to indicate whether the RF module supports the heartbeat mechanism; the second update module 605 is used to obtain the first flag register indication after reading The RF module supports the heartbeat mechanism, and after receiving the instruction indicating that the heartbeat mechanism is turned on, the state of the heartbeat switch register is updated to the on state, and the on state of the heartbeat switch register is used to indicate that the heartbeat mechanism is turned on; the second reading module 606, For reading the second flag register, the second flag register is used to indicate whether the heartbeat mechanism of the RF module is turned on successfully; the third reading module 607 is used to obtain the second flag register to indicate the RF module after reading. After the heartbeat mechanism is successfully enabled, the heartbeat register of the RF module is read, and the heartbeat register is used to write the heartbeat information generated during the execution of the heartbeat mechanism.

FIG. 10 is a schematic structural diagram of another ONU 70 provided by an embodiment of the present application. The ONU 70 includes a processor 701 , a memory 702 , a communication interface 703 and a bus 704 .

In the ONU 70, the number of processors 701 may be one or more, and FIG. 10 only illustrates one of the processors 701. Optionally, the processor 701 may be a central processing unit (central processing unit, CPU). If the ONU 70 has multiple processors 701, the multiple processors 701 may be of different types, or may be the same. Optionally, the multiple processors 701 of the ONU 70 may also be integrated into a multi-core processor.

The memory 702 stores computer instructions and data; the memory 702 may store computer instructions and data required to implement the communication control method provided by the present application, for example, the memory 702 stores instructions for implementing the steps of the communication control method. The memory 702 may be any one or any combination of the following storage media: non-volatile memory (eg read only memory (ROM), solid state drive (SSD), hard disk (HDD), optical disk), volatile memory.

The communication interface 703 may be any one or any combination of the following devices: a network interface (eg, an Ethernet interface), a wireless network card, and other devices with a network access function.

The communication interface 703 is used for data communication between the ONU 70 and other computer equipment or terminals.

A bus 704 may connect the processor 701 with the memory 702 and the communication interface 703 . In this way, through the bus 704, the processor 701 can access the memory 702, and can also use the communication interface 703 to perform data interaction with other computer devices or terminals.

The ONU 70 further includes a BOB module 705 , a host 706 and an RF module 707 , and the host 706 is connected to the BOB module 705 . For example, the aforementioned processor 701 , memory 702 , communication interface 703 and bus 704 may all be integrated in the host 706 .

Illustratively, for the structure of the ONU provided by the embodiment of the present application, reference may also be made to the structure of the ONU in the foregoing FIG. 2 , FIG. 3 , and FIG. 5 .

In this application, the ONU 70 executes the computer instructions in the memory 702, so that the ONU 70 implements the communication control method provided in this application.

As mentioned above, the host 706 and the RF module 707 are connected through a connector, and the connector includes an effective connection structure for transmitting information and a redundant connection structure not used for transmitting information. For example, the effective connection structure is a pin header for transmitting information, and the redundant connection structure is a redundant pin header. Thus, the connector may include double pin headers; or the effective connection structure is a cable for transmitting information, and the redundant connection structure is The structure is redundant cable, so the connector can include double cable. Among them, the effective connection structure and the easy connection structure can be staggered one by one or two by two or irregularly arranged, so as to create difficulties for others who want to attack the ONU, thereby increasing the difficulty of the attack and reducing the probability of successful attack.

An embodiment of the present application further provides a communication system, where the communication system includes the ONU provided by the embodiment of the present application, and the ONU may include the foregoing communication control apparatus. The communication system may also include a broadcast television data transmitter, an OLT, a processing module, and the like. For the structure of the communication system, reference may be made to the structure of the communication system in the foregoing FIG. 1 , which is not described repeatedly in this embodiment of the present application.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory including instructions, is also provided, and the instructions can be executed by a processor of a server to complete the communication control shown in the various embodiments of the present application. method. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product comprising one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website, computer, server, or data The center transmits to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, etc. that includes one or more available media integrated. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media, or semiconductor media (eg, solid state drives), and the like.

In this application, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "at least one" refers to one or more, and the term "plurality" refers to two or more, unless expressly limited otherwise. A refers to B, which means that A is the same as B or A is a simple variation of B.

It should be noted that when the communication control apparatus provided in the above-mentioned embodiments executes the communication control method, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions may be allocated to different functional modules as required. To complete, that is, to divide the internal structure of the device into different functional modules to complete all or part of the functions described above. In addition, the communication control apparatus and the communication control method embodiments provided by the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiments, which will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, etc.

The above descriptions are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A communication control method, characterized in that, applied to an optical network unit ONU, the method comprising:

Obtain the connection status between the host and the radio frequency RF module, and the host is connected with the optical device on-board BOB module;

After it is determined that the connection state between the host and the RF module is a disconnected state, at least one module in the ONU executes sending status indication information, stopping power supply to the RF module and stopping the data of the RF module At least one of the outputs, the state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state.
The method according to claim 1, wherein the acquiring the connection status between the host and the radio frequency RF module comprises:

The connection status between the host and the RF module is acquired through a heartbeat mechanism.
The method according to claim 2, wherein the acquiring the connection status between the host and the RF module through a heartbeat mechanism comprises:

Detecting whether the host receives the first heartbeat information sent by the RF module;

When it is detected that the host has not received the first heartbeat information for m consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state, where m is a preset positive integer.
The method according to claim 1, wherein the acquiring the connection status between the host and the radio frequency RF module comprises:

Read the information of the RF module through the control line between the host and the RF module;

When the information read from the RF module is empty, it is determined that the connection state between the host and the radio frequency RF module is a disconnected state.
The method according to claim 3 or 4, wherein the sending the status indication information comprises: controlling the host to send the status indication information;

The stopping of supplying power to the RF module includes: controlling the power supply in the ONU to stop supplying power to the RF module.
The method according to claim 2, wherein the acquiring the connection status between the host and the RF module through a heartbeat mechanism comprises:

Detecting whether the RF module receives the second heartbeat information sent by the host;

When it is detected that the RF module has not received the second heartbeat information for n consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state, and the n is a preset positive integer;

The stopping the data output of the RF module includes: controlling the RF module to stop the data output.
The method according to any one of claims 1 to 6, wherein the method further comprises:

After detecting that the default output state of the RF module is an on state, the default output state of the RF module is updated to an off state.
The method according to claim 2, 3 or 6, wherein the method further comprises:

Read the first flag register, the first flag register is used to indicate whether the RF module supports the heartbeat mechanism;

After reading the first flag register indicating that the RF module supports the heartbeat mechanism, and after receiving the instruction indicating to enable the heartbeat mechanism, the state of the heartbeat switch register is updated to the open state, and the open state of the heartbeat switch register is determined by To instruct to open the heartbeat mechanism;

Read the second flag register, the second flag register is used to indicate whether the heartbeat mechanism of the RF module is successfully turned on;

After reading the second flag register indicating that the heartbeat mechanism of the RF module is successfully enabled, read the heartbeat register of the RF module, and the heartbeat register is used to write the heartbeat generated during the execution of the heartbeat mechanism. information.
A communication control device, characterized in that, applied to an optical network unit ONU, the device comprising:

an acquisition module for acquiring the connection status between the host and the radio frequency RF module, where the host is connected to the optical device on-board BOB module;

The execution module is used for, after determining that the connection state between the host and the RF module is a disconnected state, at least one module in the ONU executes sending status indication information, stops supplying power to the RF module, and stops all modules. at least one of the data outputs of the RF module, and the state indication information is used to indicate that the connection state between the host and the RF module is a disconnected state.
The device according to claim 9, wherein the acquisition module is used for:

The connection status between the host and the RF module is acquired through a heartbeat mechanism.
The device according to claim 10, wherein the acquisition module is configured to:

Detecting whether the host receives the first heartbeat information sent by the RF module;

When it is detected that the host has not received the first heartbeat information for m consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state, where m is a preset positive integer.
The device according to claim 9, wherein the acquisition module is used for:

Read the information of the RF module through the control line between the host and the RF module;

When the information read from the RF module is empty, it is determined that the connection state between the host and the radio frequency RF module is a disconnected state.
The device according to claim 11 or 12, wherein the execution module is configured to:

controlling the host to send status indication information;

And/or, controlling the power supply in the ONU to stop supplying power to the RF module.
The device according to claim 10, wherein the acquisition module is configured to:

Detecting whether the RF module receives the second heartbeat information sent by the host;

When it is detected that the RF module has not received the second heartbeat information for n consecutive times, it is determined that the connection state between the host and the RF module is a disconnected state, and the n is a preset positive integer;

The execution module is configured to: control the RF module to stop data output.
The device according to any one of claims 9 to 14, wherein the device further comprises:

The first update module is configured to update the default output state of the RF module to an off state after detecting that the default output state of the RF module is an on state.
The device according to claim 10, 11 or 14, wherein the device further comprises:

The first reading module is used to read the first flag register, and the first flag register is used to indicate whether the RF module supports the heartbeat mechanism;

The second update module is configured to update the state of the heartbeat switch register to an open state after reading the first flag register indicating that the RF module supports the heartbeat mechanism, and after receiving an instruction instructing to enable the heartbeat mechanism, and the The open state of the heartbeat switch register is used to indicate that the heartbeat mechanism is turned on;

The second reading module is used to read the second flag register, and the second flag register is used to indicate whether the heartbeat mechanism of the RF module is successfully enabled;

The third reading module is configured to read the heartbeat register of the RF module after the second flag register indicates that the heartbeat mechanism of the RF module is successfully enabled, and the heartbeat register is used to write the heartbeat register of the RF module. Heartbeat information generated during the execution of the heartbeat mechanism.
An optical network unit ONU, characterized in that the ONU comprises: an optical device on-board BOB module, a host and a radio frequency RF module, the host is connected to the BOB module, and the ONU further comprises:

processor and memory;

the memory for storing computer instructions;

The processor is configured to execute the computer instructions stored in the memory, so that the ONU executes the communication control method according to any one of claims 1 to 8.
The ONU according to claim 17, wherein the host and the RF module are connected through a connector, and the connector includes an effective connection structure for transmitting information and a redundant connection structure not used for transmitting information.
A computer-readable storage medium, characterized in that the computer-readable storage medium comprises computer instructions, the computer instructions instructing a computer device to execute the communication control method according to any one of claims 1 to 8.