CN111447661A - Optical terminal equipment and working method thereof - Google Patents
Optical terminal equipment and working method thereof Download PDFInfo
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- CN111447661A CN111447661A CN202010068883.5A CN202010068883A CN111447661A CN 111447661 A CN111447661 A CN 111447661A CN 202010068883 A CN202010068883 A CN 202010068883A CN 111447661 A CN111447661 A CN 111447661A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000004065 semiconductor Substances 0.000 claims abstract description 19
- 230000035559 beat frequency Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000004044 response Effects 0.000 claims description 202
- 239000013307 optical fiber Substances 0.000 claims description 29
- 238000012544 monitoring process Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 16
- 230000010287 polarization Effects 0.000 claims description 14
- 230000002035 prolonged effect Effects 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 238000011017 operating method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 description 11
- 230000007547 defect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000007958 sleep Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
AN optical terminal device and a working method thereof are provided, wherein a reflected optical signal is amplified by AN optical amplifier and then sent to a photoelectric detector, when a difference exists between the wavelength of the reflected optical signal and the wavelength of a carrier optical signal sent by a semiconductor laser, the photoelectric detector generates a radio frequency signal with the frequency equal to the difference between the two frequencies through a beat frequency effect, a temperature sensor also transmits the acquired temperature information of AN element of the optical amplifier to a processor, and the processor transmits the temperature information to a background terminal in W L AN through a WIFI module and a WIFI RF interface for display.
Description
Technical Field
The invention relates to the technical field of optical terminal equipment, in particular to optical terminal equipment and a working method thereof.
Background
In the process of implementing radio frequency tuning and high frequency microwave signal generation by a microwave photon method, an optical end device is often used for generating radio frequency signals, the commonly used optical end device comprises a semiconductor laser, a mach-zehnder electro-optic intensity modulator, a single-mode optical fiber, a loop device, an optical beam splitter, an optical amplifier and a photoelectric detector which are sequentially connected through an optical fiber, and the optical end device further comprises an optical fiber bragg grating. The loop device transmits signals in a sequence of 1 inlet, 2 outlets, 2 inlets and 3 outlets; the single-mode optical fiber is connected with the port 1 of the circulator; the optical beam splitter is connected with the port 3 of the loop device; the fiber Bragg grating is connected with the port 2 of the loop device through an optical fiber.
Thus, a carrier optical signal emitted by the semiconductor laser is adjusted by the polarization controller to form the polarization state of light in an optical path, then the Mach-Zehnder electric light intensity modulator modulates the electric signal returned from the photoelectric oscillation loop onto the optical signal, the modulated optical signal is transmitted into the loop device through the single-mode optical fiber, the modulated optical signal is transmitted from the port 1 to the port 2 of the loop device, the reflected optical signal is transmitted from the port 2 to the port 3 of the loop device by adjusting the grating length of the fiber Bragg grating, and the reflected optical signal is located in the optical beam splitter; and when a difference exists between the wavelength of the reflected optical signal and the wavelength of the carrier optical signal emitted by the semiconductor laser, the photoelectric detector generates a radio frequency signal with the frequency equal to the difference between the two frequencies through a beat frequency effect.
In practical application, temperature of AN element of AN optical amplifier rises sharply in the operation process and affects normal working performance of the optical amplifier, so that temperature detection of the element of the optical amplifier is very necessary, a temperature sensor is used for detecting the temperature of the element of the optical amplifier, and in order to achieve the purpose of displaying and detecting the temperature information at a background terminal, the temperature sensor which is commonly used at present needs to be connected with a processor, the processor is also connected with a WIFI module connected with a WIFI RF interface, a link is established between the processor and the background terminal in W L AN through the WIFI module, so that the temperature sensor can transmit collected temperature information of the element of the optical amplifier to the processor, the processor transmits the temperature information to the background terminal in W L AN through the WIFI module and the RF interface and displays the temperature information on the background terminal, the purpose of displaying and detecting the temperature information at the background terminal is achieved, and in the process of transmitting the temperature information to the background terminal in W L AN through the WIFI module, the temperature information is transmitted in AN application mode, and the normal working performance of the background terminal is ensured.
When the background terminal is still running, the background terminal can return a response message to the processor by means of receiving the periodically transmitted interception message of the processor at the preset time point of response, the response message is used for indicating that the background terminal is under the running condition, when the background terminal is under the sleeping condition, the background terminal cannot receive the interception message transmitted by the processor and cannot return the response message to the processor, at this time, the processor can form the increase of the energy consumption of the processor due to the repeated transmission of the useless interception message, and the transmission of the useless interception message can monopolize the WIFI RF interface, so that other tasks can not timely and efficiently use the WIFI RF interface.
Disclosure of Invention
In order to solve the above problems, the present invention provides an optical end device and a working method thereof, which effectively avoid the defects that in the prior art, a processor may increase the energy consumption of the processor due to multiple transmissions of a lot of useless interception messages, and the transmission of the useless interception messages may monopolize a WIFI RF interface, so that another task cannot timely and efficiently use the WIFI RF interface.
In order to overcome the defects in the prior art, the invention provides a solution for an optical terminal device and a working method thereof, which comprises the following specific steps:
an operating method of an optical terminal device comprises the following steps:
the semiconductor laser sends out carrier optical signals, the polarization state of light in an optical path formed by the carrier optical signals is adjusted by the polarization controller, then the electric signals returned in the photoelectric oscillation loop are modulated onto the optical signals by the Mach-Zehnder electro-optic intensity modulator, the modulated optical signals are transmitted into the loop device through the single-mode optical fiber, the modulated optical signals are output from a port 1, a port 2 and a port 2 of the loop device, the length of the optical fiber Bragg grating is adjusted, the reflected optical signals are output from a port 2, a port 3 and a port 3 of the loop device, and the reflected optical signals are located in the optical beam splitter; the reflected optical signal is amplified by the optical amplifier and then sent to the photoelectric detector, and when a difference exists between the wavelength of the reflected optical signal and the wavelength of a carrier optical signal emitted by the semiconductor laser, the photoelectric detector generates a radio frequency signal with the frequency equal to the difference between the two frequencies through a beat frequency effect;
and the temperature sensor also transmits the collected temperature information of the elements of the optical amplifier to the processor, and the processor transmits the temperature information to a background terminal in the W L AN via the WIFI module and the WIFI RF interface for display.
In the process that the processor transmits the temperature information to the background terminal in the W L AN through the WIFI module, the temperature information is transmitted by using the WIFI mode, and in the process of transmitting the temperature information by using the WIFI mode, the processor can periodically transmit the monitoring message to the background terminal.
The method for the processor to periodically transmit the interception message to the background terminal comprises the following steps:
SA-1: after the background terminal is determined to be in a preset mode, transmitting the interception message to the background terminal according to a time interval-sequence order;
and SA-2: and sequentially transmitting the first preset number of the interception messages to the background terminal according to a second time interval at a preset time point before the time point of the next response time indicated by a preset response cycle, wherein the time interval required for transmitting the first preset number of the interception messages is larger than the time interval from the preset time point to the time point of the next response time, and the time interval indicated by the first time interval is larger than the time interval indicated by the second time interval.
And the background terminal in the preset mode transmits a response message to the processor by virtue of the received interception message at the time point of response time represented by the preset response period.
The method for the processor to periodically transmit the interception message to the background terminal is applied to the processor and comprises the following steps:
SB-1: receiving a mode notification message which is transmitted by a background terminal and used for indicating that the background terminal is positioned in a preset mode, wherein the mode notification message comprises a time interval I, a time interval II and a dynamic quantity used for calculating a preset response period;
SB-2: calculating the value obtained by multiplying the value of the dynamic quantity by the time interval represented by the first time interval, wherein the value obtained by multiplying is a preset response cycle;
SB-3: transmitting the interception message to the background terminal according to the time interval two sequence;
the processor transmits the interception message to the background terminal according to a normal time interval two sequence;
SB-4: if the response message returned by the background terminal is received at the time point of the later response indicated by the preset response period, the background terminal is determined to be in the preset mode;
SB-5: after the background terminal is determined to be in a preset mode, transmitting the interception message to the background terminal according to a time interval-sequence order;
SB-6: transmitting a first preset number of monitoring messages to the background terminal in sequence according to a second time period at a preset time point before the time point of the next response time represented by the preset response period;
SB-7: after the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded when the background terminal receives the monitoring messages with the preset number one are not received, the preset statistic of no response is executed and accumulated; or accumulating the preset time interval statistic without response;
SB-8: if the unresponsive statistic does not reach the preset critical number for statistics, then executing the flow of transmitting the interception message to the background terminal according to the time interval-one sequence, or if the unresponsive time interval statistic reaches the preset prolonged time interval, then executing the flow of transmitting the interception message to the background terminal according to the time interval-one sequence;
SB-9: if the unresponsive statistic reaches a preset statistic critical number, the link between the processor and the background terminal is disconnected, or if the unresponsive time interval statistic reaches a preset prolonged time interval, the link between the processor and the background terminal is disconnected.
The optical terminal equipment comprises a semiconductor laser 1, a Mach-Zehnder electro-optic intensity modulator 3, a single-mode optical fiber 4, a loop device 5, an optical beam splitter 7, an optical amplifier 8 and a photoelectric detector 9 which are sequentially connected through optical fibers;
the optical end equipment also comprises a fiber Bragg grating 6;
the temperature sensor is connected with the processor, the processor is further connected with a WIFI module connected with a WIFI RF interface, and a link is established between the processor and a background terminal in the W L AN through the WIFI module.
The optical amplifier comprises a pump laser or a rare earth doped optical fiber arranged in a metal box, and the temperature sensor is connected with the metal box.
The loop device 5 transmits signals by adopting the sequence of inlet 1, outlet 2, inlet 2 and outlet 3;
the single-mode optical fiber 4 is connected with the port 1 of the loop device 5;
the optical splitter 7 is connected with the port 3 of the loop device 5;
the fiber bragg grating 6 is connected to the 2 ports of the circulator 5 via an optical fiber.
The semiconductor laser 1 adopts a semiconductor laser with the wavelength of 1550 nm;
the polarization controller 2 adopts a three-axis mechanical adjustable polarization controller;
the Mach-Zehnder electro-optic intensity modulator 3 has an operating bandwidth of 40 GHz;
the single-mode fiber 4 adopts a G.652 standard single-mode fiber;
the tuning range of the reflection wavelength of the optical fiber Bragg grating 6 is 1549nm-1552 nm;
the optical beam splitter 7 adopts a 50:50 optical beam splitter;
the optical amplifier 8 adopts an erbium-doped optical amplifier with the wavelength of 1550nm and the output optical power of more than 10 dBm;
the photodetector 9 is a photodetector with an operating bandwidth higher than 40 GHz.
The optical terminal equipment also comprises a first transmission unit and a second transmission unit which are applied to the processor;
the first transmission unit is used for transmitting the interception messages to the background terminal according to a time interval sequence after the background terminal is determined to be in a preset mode;
a second transmitting unit, configured to sequentially transmit, to the background terminal, the first predetermined number of listening messages according to a second period at a predetermined time point before the time point of the next response time indicated by the predetermined response period, where a time interval required for transmitting the first predetermined number of listening messages is larger than a time interval from the predetermined time point to the time point of the next response time, and a time interval indicated by the first period is larger than a time interval indicated by the second period;
and the background terminal in the preset mode transmits a response message to the processor by virtue of the received interception message at the time point of response time represented by the preset response period.
The optical terminal equipment also comprises a receiving unit, an arithmetic unit I, a transmission unit III and a determination unit I which are applied to the processor;
the receiving unit is used for receiving a mode notification message which is transmitted by the background terminal and used for indicating that the background terminal is positioned in a preset mode, wherein the mode notification message has a time interval I, a time interval II and a dynamic quantity used for calculating a preset response cycle;
the first operation unit is used for operating the value obtained by multiplying the value of the dynamic quantity by the time interval represented by the first time interval, and the obtained value obtained by multiplying is a preset response cycle;
a third transmitting unit, configured to transmit the interception message to the background terminal according to the time interval two sequence;
the first identifying unit is used for identifying that the background terminal is located in the preset mode if the response message returned by the background terminal is received at the time point of the next response indicated by the preset response period; the response message is transmitted to the processor when the background terminal receives the interception message at the time point of the later response indicated by the preset response period.
The optical terminal equipment also comprises a second operation unit applied to the processor, and the second operation unit is configured to accumulate the preset unresponse statistic if the second operation unit does not receive the response message responded by the background terminal when receiving the preset first interception message after the second operation unit sequentially transmits the preset first interception message to the background terminal; or accumulating the preset time interval statistic without response; the non-response statistic is used for representing the number of response messages which are not received by the background terminal at the response time after the background terminal is determined to be positioned in a preset mode; the unresponse time interval statistic is used for representing the time interval of the reply message which is not received by the background terminal after the background terminal is determined to be positioned in a preset mode; after the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded by the background terminal when receiving the monitoring messages with the preset number one are not received, the time point when the background terminal does not respond is indicated to be activated, and then the preset statistic of no response is executed and accumulated, or the preset statistic of time interval without response is executed and accumulated.
The optical terminal equipment also comprises a first disconnection unit or a second disconnection unit which is applied to the processor;
the first disconnection unit is used for disconnecting the link between the processor and the background terminal when the unresponsive statistic obtained by the operation of the second operation unit reaches the preset critical number for statistics; or the like, or a combination thereof,
and the second disconnection unit is used for disconnecting the link between the processor and the background terminal when the unresponse time interval statistic obtained by the operation of the second operation unit reaches the preset extended time interval.
The first transmitting unit is further configured to execute a procedure of transmitting the intercepted message to the background terminal according to the time interval sequence if the unresponsive statistic does not reach a preset statistical threshold, or execute a procedure of transmitting the intercepted message to the background terminal according to the time interval sequence if the unresponsive time interval statistic reaches a preset extended time interval.
The optical terminal equipment also comprises a third arithmetic unit and a second affirmation unit which are applied to the processor;
a third operation unit, configured to multiply the time interval represented by the second time period by a second preset value, where the multiplied value is used as a first preset time interval, and the size of the second preset value is smaller than the size of the first preset value;
and a second identifying unit configured to identify a time point before the time point at the next return time and before the time point at the next return time by the preset time interval as the preset time point.
The invention has the beneficial effects that:
the interception message is transmitted to the background terminal according to the time interval with higher interval time interval under the condition that the background terminal is determined to be positioned in a preset mode, and the interception message is transmitted to the background terminal when the time interval is reduced to be close to the time point of response time represented by the preset response cycle; because the interception message can be transmitted by using the first time interval with higher interval time distance when the time point is adjacent to two times of responses, and the interception message can be transmitted according to the second time interval with lower interval time distance when the time point is close to the time point when the responses are responded, the defects that the energy consumption of a processor is increased due to the fact that the useless interception message is transmitted for many times when the interception message is transmitted by using the time interval with lower interval time distance, the useless interception message is transmitted only by a WIFI RF interface, and other tasks cannot use the WIFI RF interface timely and efficiently are overcome; the method and the device achieve the purposes of reducing energy consumption of the processor in transmitting the interception message and reducing the exclusive performance of the WIFIRF interface caused by transmitting useless interception message.
Drawings
Fig. 1 is a partial block diagram of an optical terminal apparatus of the present invention.
Fig. 2 is a schematic flow chart of a method for a processor to periodically transmit a listening message to a background terminal according to the present invention.
Detailed Description
The invention will be further described with reference to the following figures and examples.
As shown in fig. 1-2, the working method of the optical end device includes:
the semiconductor laser sends out carrier optical signals, the polarization state of light in an optical path formed by the carrier optical signals is adjusted by the polarization controller, then the electric signals returned in the photoelectric oscillation loop are modulated onto the optical signals by the Mach-Zehnder electro-optic intensity modulator, the modulated optical signals are transmitted into the loop device through the single-mode optical fiber, the modulated optical signals are output from a port 1, a port 2 and a port 2 of the loop device, the length of the optical fiber Bragg grating is adjusted, the reflected optical signals are output from a port 2, a port 3 and a port 3 of the loop device, and the reflected optical signals are located in the optical beam splitter; the reflected optical signal is amplified by the optical amplifier and then sent to the photoelectric detector, and when a difference exists between the wavelength of the reflected optical signal and the wavelength of a carrier optical signal emitted by the semiconductor laser, the photoelectric detector generates a radio frequency signal with the frequency equal to the difference between the two frequencies through a beat frequency effect;
and the temperature sensor can also transmit the collected temperature information of the elements of the optical amplifier to the processor, and the processor transmits the temperature information to a background terminal in the W L AN through the WIFI module and the WIFI RF interface for display, so that the purpose of displaying the temperature information on the background terminal for detection is achieved.
In the process that the processor transmits the temperature information to the background terminal in the W L AN through the WIFI module, the temperature information is transmitted by using the WIFI mode, and in the process of transmitting the temperature information by using the WIFI mode, the processor can periodically transmit a monitoring message to the background terminal to ensure the link between the processor and the background terminal.
The method for the processor to periodically transmit the interception message to the background terminal comprises the following steps:
the processor can be an ARM processor;
the background terminal can be a computer.
In the WIFI mode, the backend terminal can be located in a preset manner, and at a time point when a response is received next in the preset manner, the processor transmits a response message to the processor by means of the snooping message received by the processor, so as to notify the processor that the link between the processor and the backend terminal is not disconnected, which is specifically as follows:
SA-1: after the background terminal is determined to be in a preset mode, transmitting the interception message to the background terminal according to a time interval-sequence order;
and SA-2: and sequentially transmitting the first preset number of the interception messages to the background terminal according to a second time interval at a preset time point before the time point of the next response time indicated by a preset response cycle, wherein the time interval required for transmitting the first preset number of the interception messages is larger than the time interval from the preset time point to the time point of the next response time, and the time interval indicated by the first time interval is larger than the time interval indicated by the second time interval.
Here, the background terminal in the preset mode transmits the response message to the processor by using the received interception message at the time of the response indicated by the preset response period.
In a word, the interception message transmission method transmits an interception message to the background terminal according to a time interval with higher time interval when the background terminal is determined to be in a preset mode, and transmits the interception message to the background terminal when the time interval is reduced at a time point close to the response time represented by a preset response cycle;
because the interception message can be transmitted by using the time period with higher time distance firstly when the time points are adjacent to two responses, and the interception message can be transmitted according to the time period two with lower time distance when the time points are close to the response time, the defects that the energy consumption of a processor is increased due to the fact that a plurality of times of transmission of useless interception messages are caused when the interception message is transmitted by using the time interval with lower time distance are overcome, and in addition, the transmission of the useless interception message monopolizes a WIFI RF interface, so that other tasks cannot use the WIFI RF interface timely and efficiently are overcome; the method and the device realize the reduction of energy consumption when the processor transmits the interception message and also reduce the exclusive performance of the WIFI RF interface caused by transmitting the useless interception message.
The method for the processor to periodically transmit the interception message to the background terminal is applied to the processor and comprises the following steps:
SB-1: receiving a mode notification message which is transmitted by a background terminal and used for indicating that the background terminal is positioned in a preset mode, wherein the mode notification message comprises a time interval I, a time interval II and a dynamic quantity used for calculating a preset response period;
under specific application, when the background terminal is about to be in a sleep condition, the background terminal is ensured to be capable of establishing a link with the processor to receive temperature information transmitted by the processor, a preset mode after the background terminal sleeps is set in the WIFI mode, and the background terminal can be activated at a time point of response indicated by a preset response period to receive a monitoring message transmitted by the processor and transmit a response message to the processor after receiving the monitoring message in the preset mode; and then the background terminal waits for the time point of the later response again to be activated, then executes the process of receiving the interception message transmitted by the processor and transmitting a response message to the processor after receiving the interception message.
The intercepted message is usually a null message, and obviously, under a specific application, the intercepted message can also be a non-null message with other set information.
In a specific application, the backend will usually notify the processor if the backend wants to be located in the preset mode, and at this time, the backend will transmit a mode notification message to the processor, where the mode notification message can have a first time period, a second time period, and a dynamic quantity for calculating a preset response period.
Here, the represented time interval of period one is higher than the represented time interval of period two. The preset response period is used for indicating the time point when the background terminal is activated.
Generally, the time interval represented by the first time interval and the time interval represented by the second time interval are both lower than the time interval represented by the preset response cycle, i.e. the time interval represented by the preset response cycle is the time interval between the time points of the two adjacent response times.
SB-2: calculating the value obtained by multiplying the value of the dynamic quantity by the time interval represented by the first time interval, wherein the value obtained by multiplying is a preset response cycle;
after receiving the mode notification message, the processor initially needs to calculate a preset response period in which the background terminal is activated by means of the dynamic quantity in the mode notification message;
if the background terminal is to be activated every 24 seconds, that is, the preset response period is 24 seconds, then if the second time period is 0.04 seconds, the dynamic quantity for calculating the preset response period can be set to be 600; that is, the preset response cycle is the value obtained by multiplying the dynamic quantity of the preset response cycle by the time interval represented by the time interval one.
SB-3: transmitting the interception message to the background terminal according to the time interval two sequence;
the processor transmits the interception message to the background terminal according to a normal time interval two sequence;
SB-4: if the response message returned by the background terminal is received at the time point of the later response indicated by the preset response period, the background terminal is determined to be in the preset mode;
the response message is transmitted to the processor when the background terminal receives the interception message at the time point of the later response indicated by the preset response period.
When the processor receives the response message returned by the background terminal at the time point of the later response indicated by the preset response period, the processor determines that the background terminal is in the preset mode.
And when the time point of the later response indicated by the preset response period does not receive the response message returned by the background terminal, executing the step SB-3 again until the time point of the later response indicated by the preset response period receives the response message returned by the background terminal, and determining that the background terminal is in the preset mode.
As for example, if the preset response period is still 24 seconds and the second time period is 0.04 seconds, the processor transmits a monitoring message to the background terminal every 0.04 seconds, and when the first 24 seconds come, if the processor receives a response message returned by the background terminal, it can be determined that the background terminal executes the preset mode; in addition, when the first 24 seconds come, if the processor does not receive the response message returned by the background terminal, the processor can determine that the background terminal has not executed the preset mode, at this time, a monitoring message is transmitted to the background terminal every 0.04 second again, and until the next 24 seconds, namely the 48 th second comes, the processor is judged that the processor has not received the response message returned by the background terminal, and if the processor receives the response message returned by the background terminal, the processor can determine that the background terminal executes the preset mode.
SB-5: after the background terminal is determined to be in a preset mode, transmitting the interception message to the background terminal according to a time interval-sequence order;
the background terminal executes the preset mode, which means that the background terminal may execute a sleep mode, and at this time, the processor can transmit the interception message to the background terminal at one time by using a time period with a higher time interval to reduce energy consumption occupied by transmitting too many useless interception messages or reduce a time period for monopolizing the WIFI RF interface when transmitting the useless interception messages.
As for the first time period, the preset response period is 24 seconds, and the second time period is 0.04 seconds, the first time period can be 0.24 seconds, that is, in the past, an interception message is transmitted to the background terminal every 0.04 seconds, and instead, an interception message is transmitted to the background terminal every 0.24 seconds; therefore, the quantity of the transmitted interception message can be greatly reduced.
Since the background terminal usually does not need to communicate with the processor in the time interval adjacent to the time of two responses, the frequency of sending the intercepted message can be reduced appropriately.
SB-6: transmitting a first preset number of monitoring messages to the background terminal in sequence according to a second time period at a preset time point before the time point of the next response time represented by the preset response period;
when the processor transmits the interception messages to the background terminal according to the time interval first sequence, if a preset time point before the time point of the later response time indicated by the preset response cycle is reached, namely the time point close to the response time, the processor can optimally ensure that the background terminal can execute the response to the interception messages in real time, and the processor can restore the time interval second, namely transmit the interception messages of the preset number one to the background terminal according to the time interval second.
Further, the processor, when recognizing a predetermined time point before the time point of the subsequent response time, may include the steps of:
SB-6-1: multiplying the time interval represented by the second time interval by a preset value of the second quantity, wherein the value obtained by the multiplication is used as the preset time interval, and the size of the preset value of the second quantity is lower than that of the preset value of the first quantity;
the time interval required by the transmitted monitoring messages with the preset quantity one is higher than the time interval from the preset time point to the time point of the next response time;
SB-6-2: the time point before the time point of the latter return time and the preset time interval from the latter return time is regarded as the preset time point.
For example, after receiving the notification mode transmitted by the backend terminal, the processor initially transmits the listening message to the backend terminal according to the time period two 0.04 seconds set in the notification mode, and after the first 24 seconds, the processor recognizes that the backend terminal is in the preset mode, and then transmits the listening message to the backend terminal every 0.24 seconds, and the processor determines that 0.4 second before 48 seconds is a value obtained by multiplying the time interval represented by the time period two by the value 10 of the preset time period two, and determines the time point corresponding to the multiplied value as the preset time point, that is, the time point corresponding to 0.6 seconds after 47 seconds.
Generally, the interception message is transmitted according to the time interval represented by the time interval two in a preset time interval of the time point of the response time, so that the background terminal can receive the interception message most quickly after being activated; the method comprises the steps that a preset number two of interception messages are transmitted before the universal time point when the user can respond again, and a preset number three of interception messages are transmitted after the universal time point when the user can respond again, wherein the sum of the preset number two and the preset number three is the value of the preset number one; for example, the predetermined number two and the predetermined number three are both 10, and the predetermined number one is 20.
Because the predetermined number two is lower than the predetermined number one, the time interval (the time interval is higher than 0.4 seconds) required by the processor to transmit the predetermined number one of the intercepted messages is longer than the time interval of reaching the 48 th second by the predetermined time point.
SB-7: after the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded when the background terminal receives the monitoring messages with the preset number one are not received, the preset statistic of no response is executed and accumulated; or accumulating the preset time interval statistic without response;
the non-responded statistic is used to indicate the number of the non-responded response messages received by the background terminal at the responding time after the background terminal is determined to be in the preset mode.
The unresponse time interval statistic is used for representing the time interval of the response message which is not responded by the background terminal after the background terminal is determined to be positioned in a preset mode.
After the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded by the background terminal when receiving the monitoring messages with the preset number one are not received, the time point when the background terminal does not respond is indicated to be activated, and then the preset statistic of no response is accumulated, or the preset statistic of the time interval of no response is accumulated.
Under the specific application, the processor accumulates the statistic which does not respond from zero after confirming that the background terminal is in the preset mode, or the processor starts to count and accumulate the time interval statistic which does not respond from zero after confirming that the background terminal is in the preset mode.
SB-8: if the unresponsive statistic does not reach the preset critical number for statistics, then executing the flow of transmitting the interception message to the background terminal according to the time interval-one sequence, or if the unresponsive time interval statistic reaches the preset prolonged time interval, then executing the flow of transmitting the interception message to the background terminal according to the time interval-one sequence;
in practical applications, the background terminal is not activated at the time of the response, but is activated at the time of the following response, so as to ensure that the background terminal is activated, and to overcome the problem of the disconnection of the link between the processor and the background terminal, a previously set threshold number for statistics or a previously set extended time interval can be set.
If the unresponsive statistic does not reach the preset statistic critical number, then the step of transmitting the interception message to the background terminal according to the time interval sequence is executed, the step is SB-5, and then the step SB-6 is executed; for example, the statistic of no response is multiplied by the time interval represented by the preset response period, if the multiplied value does not reach the preset prolonged time interval, the step of transmitting the interception message to the background terminal according to the time interval sequence is executed, the step is SB-5, and then the step SB-6 is executed.
If the processor does not receive a response message at the 48 th second of the response time point, the preset statistic of no response is accumulated to one, and the statistic of no response is lower than the preset statistic critical number of 7, then step SB-5 is executed, that is, the interception message is transmitted to the background terminal according to 0.24 second.
SB-9: if the unresponsive statistic reaches a preset statistic critical number, the link between the processor and the background terminal is disconnected, or if the unresponsive time interval statistic reaches a preset prolonged time interval, the link between the processor and the background terminal is disconnected.
In practical application, the background terminal is not activated in a short period of time, the link between the processor and the background terminal can be disconnected, and a threshold number for statistics can be set in advance, or a preset prolonged time interval is set to restrict the maximum time interval for the background terminal to permit sleep.
If the processor does not receive the response message at the 48 th second of the time point of the response, the preset statistic of no response is accumulated into one, and no response message is received at the 72 th, 168 th, 192 th, 216 th, 240 th and 288 th seconds of the time point of the response, and the statistic of no response is accumulated to 7 at the 288 th second, so that the link between the processor and the background terminal can be disconnected, or the timing is started after no response message is received at the 48 th second of the time point of the response, and the link between the processor and the background terminal is disconnected when the timing reaches the preset prolonged time interval and no response message is received by the background terminal.
In a word, in the interception message transmission method, when the background terminal is determined to be located in the preset mode, the interception message is transmitted to the background terminal according to the time period with the higher interval time interval, and the interception message is transmitted to the background terminal by restoring the time period two at the time point close to the response time represented by the preset response cycle;
because the interception message can be transmitted by using the first time interval with higher interval time distance when the time point is adjacent to two times of response, and the interception message can be transmitted according to the second time interval with lower interval time distance when the time point is close to the time point when the response is performed, the defects that the energy consumption of a processor is increased due to the fact that the useless interception message is transmitted for many times when the interception message is transmitted by using the time interval with lower interval time distance for all the time, the WIFI RF interface can not be used by other tasks in time and efficiently are overcome; the method and the device achieve the purposes of reducing energy consumption of the processor in transmitting the interception message and reducing the exclusive performance of the WIFI RF interface caused by transmitting useless interception messages.
The optical terminal equipment comprises a semiconductor laser 1, a Mach-Zehnder electro-optic intensity modulator 3, a single-mode optical fiber 4, a loop device 5, an optical beam splitter 7, an optical amplifier 8 and a photoelectric detector 9 which are sequentially connected through optical fibers;
the optical end equipment also comprises a fiber Bragg grating 6;
in practical application, the temperature of the components of the optical amplifier rises sharply during operation, which affects the normal operation performance of the optical amplifier, so that it is very necessary to perform temperature detection on the components of the optical amplifier, so that a temperature sensor is used to perform temperature detection on the components of the optical amplifier, and for the purpose of displaying the temperature information on a background terminal to perform detection, the temperature sensor needs to be connected with a processor, the processor is also connected with a WIFI module connected with a WIFI rf interface, and a link is established between the processor and the background terminal in W L AN through the WIFI module.
The components of the optical amplifier comprise a pump laser or a rare-earth doped optical fiber which is arranged in a metal box, and the temperature sensor is connected with the metal box, so that the temperature sensor can collect temperature information of the components of the optical amplifier, such as the pump laser or the rare-earth doped optical fiber.
The loop device 5 transmits signals by adopting the sequence of inlet 1, outlet 2, inlet 2 and outlet 3;
the single-mode optical fiber 4 is connected with the port 1 of the loop device 5;
the optical splitter 7 is connected with the port 3 of the loop device 5;
the fiber bragg grating 6 is connected to the 2 ports of the circulator 5 via an optical fiber.
The semiconductor laser 1 adopts a semiconductor laser with the wavelength of 1550 nm;
the polarization controller 2 adopts a three-axis mechanical adjustable polarization controller;
the Mach-Zehnder electro-optic intensity modulator 3 has an operating bandwidth of 40 GHz;
the single-mode fiber 4 adopts a G.652 standard single-mode fiber;
the tuning range of the reflection wavelength of the optical fiber Bragg grating 6 is 1549nm-1552 nm;
the optical beam splitter 7 adopts a 50:50 optical beam splitter;
the optical amplifier 8 adopts an erbium-doped optical amplifier with the wavelength of 1550nm and the output optical power of more than 10 dBm;
the photodetector 9 is a photodetector with an operating bandwidth higher than 40 GHz.
The optical terminal equipment also comprises a first transmission unit and a second transmission unit which are applied to the processor;
the first transmission unit is used for transmitting the interception messages to the background terminal according to a time interval sequence after the background terminal is determined to be in a preset mode;
a second transmitting unit, configured to sequentially transmit, to the background terminal, the first predetermined number of listening messages according to a second period at a predetermined time point before the time point of the next response time indicated by the predetermined response period, where a time interval required for transmitting the first predetermined number of listening messages is larger than a time interval from the predetermined time point to the time point of the next response time, and a time interval indicated by the first period is larger than a time interval indicated by the second period;
here, the background terminal in the preset mode transmits the response message to the processor by using the received interception message at the time of the response indicated by the preset response period.
The optical terminal equipment also comprises a receiving unit, an arithmetic unit I, a transmission unit III and a determination unit I which are applied to the processor;
the receiving unit is used for receiving a mode notification message which is transmitted by the background terminal and used for indicating that the background terminal is positioned in a preset mode, wherein the mode notification message has a time interval I, a time interval II and a dynamic quantity used for calculating a preset response cycle;
the first operation unit is used for operating the value obtained by multiplying the value of the dynamic quantity by the time interval represented by the first time interval, and the obtained value obtained by multiplying is a preset response cycle;
a third transmitting unit, configured to transmit the interception message to the background terminal according to the time interval two sequence;
the first identifying unit is used for identifying that the background terminal is located in the preset mode if the response message returned by the background terminal is received at the time point of the next response indicated by the preset response period; the response message is transmitted to the processor when the background terminal receives the interception message at the time point of the later response indicated by the preset response period.
The optical terminal equipment also comprises a second operation unit applied to the processor, and the second operation unit is configured to accumulate the preset unresponse statistic if the second operation unit does not receive the response message responded by the background terminal when receiving the preset first interception message after the second operation unit sequentially transmits the preset first interception message to the background terminal; or accumulating the preset time interval statistic without response; the non-response statistic is used for representing the number of response messages which are not received by the background terminal at the response time after the background terminal is determined to be positioned in a preset mode; the unresponse time interval statistic is used for representing the time interval of the reply message which is not received by the background terminal after the background terminal is determined to be positioned in a preset mode; after the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded by the background terminal when receiving the monitoring messages with the preset number one are not received, the time point when the background terminal does not respond is indicated to be activated, and then the preset statistic of no response is executed and accumulated, or the preset statistic of time interval without response is executed and accumulated.
The optical terminal equipment also comprises a first disconnection unit or a second disconnection unit which is applied to the processor;
the first disconnection unit is used for disconnecting the link between the processor and the background terminal when the unresponsive statistic obtained by the operation of the second operation unit reaches the preset critical number for statistics; or the like, or a combination thereof,
and the second disconnection unit is used for disconnecting the link between the processor and the background terminal when the unresponse time interval statistic obtained by the operation of the second operation unit reaches the preset extended time interval.
The first transmitting unit is further configured to execute a procedure of transmitting the intercepted message to the background terminal according to the time interval sequence if the unresponsive statistic does not reach a preset statistical threshold, or execute a procedure of transmitting the intercepted message to the background terminal according to the time interval sequence if the unresponsive time interval statistic reaches a preset extended time interval.
The optical terminal equipment also comprises a third arithmetic unit and a second affirmation unit which are applied to the processor;
a third operation unit, configured to multiply the time interval represented by the second time period by a second preset value, where the multiplied value is used as a first preset time interval, and the size of the second preset value is smaller than the size of the first preset value;
and a second identifying unit configured to identify a time point before the time point at the next return time and before the time point at the next return time by the preset time interval as the preset time point.
In a word, when the background terminal is determined to be in a preset mode, the interception message is transmitted to the background terminal according to the time interval with higher time interval, and the time interval II is restored near the time point of the response time represented by the preset response cycle, so that the interception message is transmitted to the background terminal; because the interception message can be transmitted by using the first time interval with higher interval time distance when the time point is adjacent to two times of responses, and the interception message can be transmitted according to the second time interval with lower interval time distance when the time point is close to the time point when the responses are responded, the defects that the energy consumption of a processor is increased due to the fact that the useless interception message is transmitted for many times when the interception message is transmitted by using the time interval with lower interval time distance, the useless interception message is transmitted only by a WIFI RF interface, and other tasks cannot use the WIFI RF interface timely and efficiently are overcome; the method and the device achieve the purposes of reducing energy consumption of the processor in transmitting the interception message and reducing the exclusive performance of the WIFI RF interface caused by transmitting useless interception messages.
The present invention has been described in an illustrative manner by the embodiments, and it should be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, but is capable of various changes, modifications and substitutions without departing from the scope of the present invention.
Claims (10)
1. An operating method of an optical end device, comprising:
the semiconductor laser sends out carrier optical signals, the polarization state of light in an optical path formed by the carrier optical signals is adjusted by the polarization controller, then the electric signals returned in the photoelectric oscillation loop are modulated onto the optical signals by the Mach-Zehnder electro-optic intensity modulator, the modulated optical signals are transmitted into the loop device through the single-mode optical fiber, the modulated optical signals are output from the port 1 of the loop device through the port 2, and the reflected optical signals are output from the port 2 of the loop device through the port 3 by adjusting the grating length of the fiber Bragg grating, so that the reflected optical signals are located in the optical beam splitter; the reflected optical signal is amplified by the optical amplifier and then sent to the photoelectric detector, and when a difference exists between the wavelength of the reflected optical signal and the wavelength of a carrier optical signal emitted by the semiconductor laser, the photoelectric detector generates a radio frequency signal with the frequency equal to the difference between the two frequencies through a beat frequency effect;
and the temperature sensor also transmits the collected temperature information of the elements of the optical amplifier to the processor, and the processor transmits the temperature information to a background terminal in the W L AN via the WIFI module and the WIFI RF interface for display.
2. The method of claim 1, wherein the temperature information is transferred in the WIFI mode during the process that the processor transfers the temperature information to the backend terminal in the W L AN via the WIFI module, and the processor periodically transfers the listening message to the backend terminal during the process of transferring the temperature information in the WIFI mode.
3. The method of claim 2, wherein the method for the processor to periodically transmit the interception packet to the backend terminal comprises the following steps:
SA-1: after confirming that the background terminal is positioned in a preset mode, transmitting an interception message to the background terminal according to a time interval sequence;
and SA-2: and sequentially transmitting the first preset number of the interception messages to the background terminal according to a second time interval at a preset time point before the time point of the next response time indicated by a preset response cycle, wherein the time interval required for transmitting the first preset number of the interception messages is larger than the time interval from the preset time point to the time point of the next response time, and the time interval indicated by the first time interval is larger than the time interval indicated by the second time interval.
4. The operating method of the optical line terminal according to claim 3, wherein the background terminal in the predetermined manner transmits the response message to the processor by receiving the interception message at the time point of the response indicated by the predetermined response period.
5. The method according to claim 2, wherein the method for the processor to periodically transmit the listening message to the background terminal is applied to the processor, and comprises the following steps:
SB-1: receiving a mode notification message which is transmitted by a background terminal and used for indicating that the background terminal is positioned in a preset mode, wherein the mode notification message comprises a time interval I, a time interval II and a dynamic quantity used for calculating a preset response period;
SB-2: calculating the value obtained by multiplying the value of the dynamic quantity by the time interval represented by the first time interval, wherein the value obtained by multiplying is a preset response cycle;
SB-3: transmitting the interception message to the background terminal according to the time interval two sequence;
the processor transmits the interception message to the background terminal according to a normal time interval two sequence;
SB-4: if the response message returned by the background terminal is received at the time point of the later response indicated by the preset response period, the background terminal is determined to be in the preset mode;
SB-5: after the background terminal is determined to be in a preset mode, transmitting the interception message to the background terminal according to a time interval sequence;
SB-6: transmitting a first preset number of monitoring messages to the background terminal in sequence according to a second time period at a preset time point before the time point of the later response time represented by the preset response period;
SB-7: after the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded when the background terminal receives the monitoring messages with the preset number one are not received, the preset statistic of no response is executed and accumulated; or accumulating the preset time interval statistic without response;
SB-8: if the unresponsive statistic does not reach the preset critical number for statistics, then executing the flow of transmitting the interception message to the background terminal according to the time interval-one sequence, or if the unresponsive time interval statistic reaches the preset prolonged time interval, then executing the flow of transmitting the interception message to the background terminal according to the time interval-one sequence;
SB-9: if the statistic of the non-response reaches the preset critical number for statistics, the link between the processor and the background terminal is disconnected, or if the statistic of the non-response time interval reaches the preset prolonged time interval, the link between the processor and the background terminal is disconnected.
6. An optical terminal device is characterized by comprising a semiconductor laser, a Mach-Zehnder electro-optic intensity modulator, a single-mode optical fiber, a loop device, an optical beam splitter, an optical amplifier and a photoelectric detector which are sequentially connected through an optical fiber;
the optical end equipment also comprises an optical fiber Bragg grating;
the temperature sensor is connected with the processor, the processor is further connected with a WIFI module connected with a WIFI RF interface, and a link is established between the processor and a background terminal in W L AN through the WIFI module.
7. The optical terminal device of claim 6, wherein the components of the optical amplifier comprise a pump laser or a rare-earth doped fiber disposed in a metal box, and the temperature sensor is connected to the metal box.
8. The optical end device of claim 6, wherein the circulator transmits signals in a sequence of 1 port in 2 ports out, and 2 ports in 3 ports out;
the single-mode optical fiber is connected with the port 1 of the loop device 5;
the optical splitter is connected with the port 3 of the loop device 5;
the fiber bragg grating is connected with the 2 ports of the circulator 5 through optical fibers.
The semiconductor laser adopts a semiconductor laser with the wavelength of 1550 nm;
the polarization controller adopts a three-axis mechanical adjustable polarization controller;
the working bandwidth of the Mach-Zehnder electro-optic intensity modulator is 40 GHz;
the single-mode fiber adopts a G.652 standard single-mode fiber;
the tuning range of the reflection wavelength of the fiber Bragg grating is 1549nm-1552 nm;
the optical beam splitter adopts a 50:50 optical beam splitter;
the optical amplifier adopts an erbium-doped optical amplifier with the wavelength of 1550nm and the output optical power of more than 10 dBm;
the photoelectric detector adopts a photoelectric detector with the working bandwidth higher than 40 GHz.
9. The optical terminal apparatus of claim 6, further comprising a first and a second transmission units applied to the processor;
the transmission unit I is used for transmitting the interception message to the background terminal according to a time interval sequence after the background terminal is determined to be in a preset mode;
a second transmitting unit, configured to sequentially transmit, to the background terminal, the first predetermined number of listening messages according to a second period at a predetermined time point before the time point of the next response time indicated by the predetermined response period, where a time interval required for transmitting the first predetermined number of listening messages is larger than a time interval from the predetermined time point to the time point of the next response time, and a time interval indicated by the first period is larger than a time interval indicated by the second period;
the background terminal in the preset mode transmits a response message to the processor by virtue of the received interception message at the time point of the response represented by the preset response period.
10. The optical terminal apparatus of claim 6, further comprising a receiving unit, a first computing unit, a third transmitting unit and a first determining unit, which are applied to the processor;
the receiving unit is used for receiving a mode notification message which is transmitted by the background terminal and used for indicating that the background terminal is positioned in a preset mode, wherein the mode notification message has a time interval I, a time interval II and a dynamic quantity used for calculating a preset response cycle;
the first operation unit is used for operating a value obtained by multiplying the value of the dynamic quantity by the time interval represented by the first time interval, and the obtained value obtained by multiplying is a preset response cycle;
a third transmitting unit, configured to transmit the interception message to the background terminal according to the time interval two sequence;
the first identifying unit is used for identifying that the background terminal is located in the preset mode if the response message returned by the background terminal is received at the time point of the later response indicated by the preset response period; the response message is transmitted to the processor when the background terminal receives the interception message at the time point of the later response indicated by the preset response period;
the optical terminal equipment also comprises a second operation unit applied to the processor, and the second operation unit is configured to accumulate the preset unresponse statistic if the second operation unit does not receive the response message responded by the background terminal when receiving the preset first interception message after the second operation unit sequentially transmits the preset first interception message to the background terminal; or accumulating the preset time interval statistic without response; the non-response statistic is used for representing the number of response messages which are not responded by the background terminal at the response time after the background terminal is determined to be positioned in a preset mode; the unresponse time interval statistic is used for representing the time interval of the response message which is not responded by the background terminal after the background terminal is determined to be positioned in a preset mode; after the monitoring messages with the preset number one are transmitted to the background terminal in sequence, if the response messages responded by the background terminal when receiving the monitoring messages with the preset number one are not received, the time point when the background terminal does not respond is indicated to be activated, and at the moment, the preset statistic of no response is executed and accumulated, or the preset time interval statistic of no response is executed and accumulated;
the optical terminal equipment also comprises a first disconnection unit or a second disconnection unit which is applied to the processor;
the first disconnection unit is used for disconnecting the link between the processor and the background terminal when the unresponsive statistic obtained by the operation of the second operation unit reaches the preset critical number for statistics; or,
the second disconnection unit is used for disconnecting the link between the processor and the background terminal when the unresponse time interval statistic obtained by the operation of the second operation unit reaches the preset extended time interval;
the first transmission unit is further configured to execute a procedure of transmitting the interception message to the background terminal according to a time interval sequence if the unresponsed statistic does not reach a preset critical number for statistics, or execute a procedure of transmitting the interception message to the background terminal according to the time interval sequence if the unresponsed time interval statistic reaches a preset extended time interval;
the optical terminal equipment also comprises a third arithmetic unit and a second affirmation unit which are applied to the processor;
a third operation unit, configured to multiply the time interval represented by the second time period by a second preset number of values, where the multiplied value is used as a preset time interval, and the size of the second preset number is smaller than the size of the first preset number;
and a second identifying unit configured to identify a time point before the time point at the next return time and before the time point at the next return time by the preset time interval as the preset time point.
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| CN113484504B (en) * | 2021-07-19 | 2023-10-27 | 江苏省建工建材质量检测中心有限公司 | Building wall defect detection device and method |
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