CN111431649A - Timing processing method and device - Google Patents
Timing processing method and device Download PDFInfo
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- CN111431649A CN111431649A CN201911183602.4A CN201911183602A CN111431649A CN 111431649 A CN111431649 A CN 111431649A CN 201911183602 A CN201911183602 A CN 201911183602A CN 111431649 A CN111431649 A CN 111431649A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
Abstract
The embodiment of the invention discloses a timing processing method and device, relates to the field of security monitoring, and solves the problem that the condition of inconsistent time of front-end and back-end equipment cannot be checked in time. The method comprises the following steps: after the front-end equipment is calibrated, reporting the relevant time calibration information of the front-end equipment to back-end equipment which is different from the equipment triggering the time calibration of the front-end equipment in target back-end equipment, wherein the target back-end equipment comprises back-end equipment which is accessed into the front-end equipment. The embodiment of the invention is mainly applied to the scene of timing the front-end equipment under the condition that the back-end equipment which is accessed to the front-end equipment exists.
Description
Technical Field
The invention relates to the field of security monitoring, in particular to a timing processing method and device.
Background
When a front-end device (such as a network camera) is accessed to a security monitoring system through a back-end device (such as a network video recorder, a hard disk video recorder and the like) to perform monitoring video recording, because the video recording time is determined according to the time of the back-end device, and the OSD time (on-screen display, video overlapping time information) of the video recording is determined according to the time of the front-end device, if the time of the front-end device is inconsistent with that of the back-end device, the OSD time and the video recording time in the video recording are inconsistent. In the prior art, when the back-end equipment starts monitoring and video recording, the front-end equipment is calibrated according to the current time of the back-end equipment, so that the time of the front-end equipment is uniform, however, in the video recording process, the situation that the time of the front-end equipment is changed may occur, so that the time of the front-end equipment is inconsistent, but the situation that the time of the front-end equipment is inconsistent cannot be timely checked out in the prior art.
Disclosure of Invention
The embodiment of the invention discloses a timing processing method and a timing processing device, which are used for improving the timeliness of checking time inconsistency of front-end and back-end equipment.
In order to achieve the above object, an embodiment of the present invention discloses a timing processing method, including:
after the front-end equipment is calibrated, reporting the relevant time calibration information of the front-end equipment to back-end equipment which is different from the equipment triggering the time calibration of the front-end equipment in target back-end equipment, wherein the target back-end equipment comprises back-end equipment which is accessed into the front-end equipment.
In order to achieve the above object, an embodiment of the present invention discloses a timing processing apparatus, including:
the reporting module is configured to report, after the front-end device is calibrated, the time-calibration related information of the front-end device to a back-end device different from a device that triggers time calibration of the front-end device in a target back-end device, where the target back-end device includes a back-end device that has been accessed to the front-end device.
In order to achieve the above object, an embodiment of the present invention discloses a front-end device, which includes a processor and a memory, wherein,
a memory for storing a computer program;
the processor is used for implementing the steps of the timing processing method provided by the embodiment of the invention when executing the program stored in the memory.
In order to achieve the above object, an embodiment of the present invention further discloses a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the timing processing method provided in the embodiment of the present invention are implemented.
In order to achieve the above object, an embodiment of the present invention further discloses a computer program product, which when running on a computer, causes the computer to execute the steps of implementing the timing processing method provided by the embodiment of the present invention.
The embodiment of the invention provides a timing processing method, a timing processing device, front-end equipment, a computer readable storage medium and a computer program product, reporting the time correction related information of the front-end equipment to back-end equipment different from equipment triggering the time correction of the front-end equipment in target back-end equipment after the front-end equipment is time-corrected, wherein the target back-end equipment comprises back-end equipment which is accessed into the front-end equipment, therefore, the user can timely know that the front-end equipment is calibrated and obtain the time calibration related information of the front-end equipment through the back-end equipment which obtains the time calibration related information of the front-end equipment, therefore, whether the target back-end equipment has the back-end equipment with time inconsistent with that of the front-end equipment can be checked in time according to the time correction related information of the front-end equipment, and the timeliness of checking the time inconsistent condition of the front-end equipment and the back-end equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a timing processing method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating another timing processing method according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a specific application example of a timing processing method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a timing processing apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another timing processing apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a front-end device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of a timing processing method according to an embodiment of the present invention, where the method includes:
s101: after the front-end equipment is calibrated, reporting the relevant time calibration information of the front-end equipment to back-end equipment which is different from the equipment triggering the time calibration of the front-end equipment in target back-end equipment, wherein the target back-end equipment comprises back-end equipment which is accessed into the front-end equipment.
The front-end equipment can be a network camera, an analog camera or other types of cameras; the back-end equipment can be a network video recorder, a hard disk video recorder or other equipment with the functions of processing, displaying, recording and the like on the video signals collected by the front-end equipment. Specifically, in the security monitoring system, one or more backend devices access to a front-end device, and after the front-end device is calibrated, the time-calibration related information of the front-end device may be reported to one or more backend devices different from a device triggering time calibration of the front-end device in a target backend device, and preferably, may be reported to all backend devices different from a device triggering time calibration of the front-end device in the target backend device. Here, the timing of the front-end device may be performed by an external clock setting device, or may be performed by an accessed back-end device, and the device that performs timing on the front-end device is the device that triggers timing of the front-end device. The target backend device comprises a backend device which has access to the front-end device. That is to say, when the device triggering the time calibration of the front-end device is an external clock setting device, since the target back-end device does not include the clock setting device, the step S101 is to report the time calibration related information of the front-end device to the target back-end device after the front-end device is calibrated; when the device triggering the front-end device timing is an accessed back-end device, the step S101 is to report the front-end device timing related information to a back-end device different from the device triggering the front-end device timing in the target back-end device after the front-end device is timed.
The front-end device timing related information may include information indicating that the front-end device has been calibrated, for example, information reporting may be performed through a special command indicating that the front-end device has been calibrated or a flag bit indicating that the front-end device has been calibrated, so that a user may know that the front-end device has been calibrated at this time through a time when the back-end device receives the information, and may check whether the front-end time and the back-end time are consistent by reading OSD time from the front-end device through the back-end device after the front-end device is calibrated in time and comparing the time of the back-end device. Preferably, the time-alignment related information of the front-end device may include information indicating that the front-end device has been time-aligned and current time after the front-end device has been time-aligned, for example, information may be reported by a special command indicating that the front-end device has been time-aligned and carrying the current time after the front-end device has been time-aligned, or a flag bit indicating that the front-end device has been time-aligned and the current time after time-alignment may be reported, so that a user may know that the front-end device has been time-aligned by the back-end device receiving the time-alignment related information of the front-end device, and may conveniently check whether the front-end time and the back-end time are consistent by comparing the current time after the front-end device has been time-aligned and the current time of the back-end device.
In particular, the front-end device timing related information may further include an address of at least one back-end device that has accessed the front-end device and needs to be time-synchronized with the front-end device. Here, the backend device that needs to be time-synchronized with the front-end device may be time-synchronized with the front-end device when accessing the front-end device, or a backend device that has been time-corrected for the front-end device after accessing; or the time synchronization with the front-end equipment before the front-end equipment is calibrated. Therefore, a user can know that the front-end equipment is calibrated at the moment through the moment when the back-end equipment receives the information, and can determine at least one back-end equipment which is accessed to the front-end equipment and needs to be time-synchronized with the front-end equipment according to the received at least one address, so that the OSD time can be read from the front-end equipment by the back-end equipment which receives the information and each back-end equipment which is accessed to the front-end equipment and needs to be time-synchronized with the front-end equipment in time after the front-end equipment is calibrated, and whether the front-end time is consistent or not can be checked by comparing the time of each back-end equipment with the time of the front-end equipment. Preferably, the front-end device timing related information may include addresses of all back-end devices that have access to the front-end device and need time synchronization with the front-end device.
In an embodiment of the present invention, the target backend device includes a backend device that has access to the front-end device and needs to be time-synchronized with the front-end device, and specifically, the target backend device may be: the time synchronization with the front-end equipment is carried out when the front-end equipment is accessed, or the rear-end equipment which is used for timing the front-end equipment is arranged after the front-end equipment is accessed; the target backend device may also be: and the back-end equipment is time-synchronized with the front-end equipment before the front-end equipment is time-calibrated. In this case, considering that the backend device that does not need to be time-synchronized with the front-end device does not care whether the time of the front-end device is consistent with the time of the front-end device, only the time correction related information of the front-end device is reported to the backend device that has access to the front-end device and needs to be time-synchronized with the front-end device, so that the performance consumption of the front-end device is reduced, the speed of information reporting is increased, and the information reporting is more targeted.
In an embodiment of the present invention, after reporting the front-end device timing related information to a back-end device different from a device that triggers the front-end device timing in a target back-end device, the method further includes: and under the condition that the time of the front-end equipment needs to be corrected again to be the time of one of the target back-end equipment, acquiring a timing command sent by one of the target back-end equipment.
Specifically, after checking that there is a back-end device with time inconsistent with that of a front-end device in the target back-end device, when the time of the front-end device needs to be re-calibrated to be the time of the back-end device with time inconsistent with that of the front-end device, for example, when monitoring and video recording is being performed on the front-end device by one back-end device in the target back-end device, it is found through the checking that the time of the back-end device is inconsistent with that of the front-end device after the front-end device is calibrated, however, in order to make the OSD time and the video recording time of the video recording consistent, when the front-end device needs to be re-calibrated by the back-end device, the front-end device will acquire a timing command sent by the back-end device, where the timing command carries the current time of the back-end device. The time correction related information of the front-end equipment is actively reported to timely check whether the front-end equipment and the back-end equipment are inconsistent, the time correction command sent by one back-end equipment of the target back-end equipment is obtained under the condition that the time of the front-end equipment needs to be corrected again to be the time of one back-end equipment of the target back-end equipment, and the time of the front-end equipment is corrected again.
In an embodiment of the present invention, the time-correcting times of the front-end device are also accumulated, and when the time-correcting times of the front-end device reach a preset number, the abnormal information is reported. In a security monitoring system, when a front-end device is accessed to a back-end device for monitoring video, because the OSD time in the video is required to be consistent with the video time, when the front-end device is not consistent with the time of the front-end device, the front-end device is calibrated, if the time of the front-end device is too many, it indicates that a system clock of the front-end device or the back-end device is abnormal, or the front-end device is misconnected by the back-end device which is inconsistent with the time zone in which the front-end device is located, so that when the time of the front-end device reaches a preset time, the front-end device reports abnormal information, can report to one or more back-end devices in the target back-end device, and can also report information to a device such as a mobile phone of an administrator or a management server, and the abnormal situation can be timely checked.
The embodiment of the invention provides a time correction processing method, after a front-end device is corrected, time correction related information of the front-end device is reported to a rear-end device which is different from a device triggering time correction of the front-end device in a target rear-end device, the target rear-end device comprises a rear-end device which is connected with the front-end device, therefore, a user can timely know that the front-end device is corrected and obtain the time correction related information of the front-end device through the rear-end device which obtains the time correction related information of the front-end device, and can timely check whether the rear-end device with time inconsistent with the front-end device exists in the target rear-end device according to the time correction related information of the front-end device, so that the timeliness of checking the time inconsistent condition of the front-end device and the rear-end device is improved.
Referring to fig. 2, fig. 2 is a schematic flowchart of another timing processing method according to an embodiment of the present invention, where the method may be applied to a front-end device, and the method includes:
s201: and acquiring a timing command carrying timing time, which is sent by the back-end equipment needing to perform timing on the front-end equipment.
In a security monitoring system, when a front-end device is accessed to a back-end device for monitoring video recording, the OSD time and the video recording time in the video recording need to be consistent, so that the back-end device can correct the time of the front-end device under the condition that the time of the front-end device is inconsistent with that of the back-end device. The back-end device to be calibrated to the front-end device may be any back-end device accessing to the front-end device, and the time calibration time is a time indicating sending of the time calibration command in the back-end device to be calibrated to the front-end device. Preferably, the back-end device to be calibrated may be a back-end device newly accessed to the front-end device, the timing command is a timing command sent when the back-end device to be calibrated is accessed to the front-end device, and the timing time is a time indicating the time for accessing the front-end device in the back-end device to be calibrated to the front-end device.
S202: judging whether a target back-end device exists, if not, executing S203; if yes, go to step S204.
The target backend device includes: a backend device that has access to the frontend device and needs to be time synchronized with the frontend device. Specifically, the target backend device may be: the time synchronization with the front-end equipment is carried out when the front-end equipment is accessed, or the rear-end equipment which is used for timing the front-end equipment is arranged after the front-end equipment is accessed; the target backend device may also be: and the back-end equipment is time-synchronized with the front-end equipment before the front-end equipment is time-calibrated. The front-end device stores a storage space for storing the address of the target back-end device, for example, an array for storing the address of the target back-end device is created, the back-end device corresponding to the address stored in the storage space belongs to the target back-end device, and here, whether the target back-end device exists can be determined by determining whether the storage space is empty. If the storage space is empty, it indicates that there is no target backend device, and step S203 is executed; if the storage space is not empty, it indicates that the target backend device exists, and step S204 is executed.
S203: and under the condition that the target back-end equipment does not exist, the front-end equipment is calibrated according to the time calibration time, and the address of the back-end equipment needing to be calibrated to the front-end equipment is stored in the storage space.
Considering that only the backend device that needs to be time-synchronized with the front-end device may be affected by the time change of the front-end device, in the absence of the target backend device, it is described that there is no backend device that has been accessed to the front-end device and needs to be time-synchronized with the front-end device, that is, there is no backend device that can be affected by the time-corrected front-end device, and therefore, in the absence of the target backend device, the address of the backend device that needs to time-correct the front-end device may be directly time-corrected according to the time-corrected time, and the address of the backend device that needs to time-correct the front-end device is stored in the storage space after the time-correction. It should be noted that the address may be an internet protocol address of the back-end device that needs to be calibrated to the front-end device, the back-end device that needs to be calibrated to the front-end device may carry its own internet protocol address in a message sent when communicating with the front-end device, and after the front-end device obtains the message sent by the back-end device that needs to be calibrated to the front-end device, that is, after obtaining the timing command sent by the back-end device that needs to be calibrated to the front-end device, the internet protocol address of the back-end device that needs to be calibrated to the front-end device may be obtained.
S204: under the condition that the target back-end equipment exists, judging whether the difference between the timing time and the time when the front-end equipment acquires the timing command is within an error allowable range, if so, executing S205; if not, go to S206.
If the target back-end device exists, determining whether a difference between the timing time and the time when the front-end device acquires the timing command is within an error allowable range, and if the difference is within the error allowable range, that is, the situation that the front-end time and the back-end time are synchronous or consistent as considered by a person skilled in the art is reached, executing step S205; if not, go to step S206.
S205: and under the condition that the difference between the timing time and the time when the front-end equipment acquires the timing command is within an error allowable range, storing the address of the back-end equipment needing timing to the front-end equipment into the storage space.
Because the difference between the timing time and the time when the front-end equipment acquires the timing command is within the error allowable range, namely the situation that the front-end time and the rear-end time are synchronous or consistent is achieved, which is considered by a person skilled in the art, the address of the rear-end equipment needing to be calibrated on the front-end equipment is directly stored in the storage space without needing to calibrate the front-end equipment again, and the performance consumption of the front-end equipment is reduced.
S206: and sending a timing confirmation request to the back-end equipment needing timing to the front-end equipment under the condition that the difference between the timing time and the time of the front-end equipment acquiring the timing command is not within an error allowable range.
Under the condition that the difference between the timing time and the time when the front-end device acquires the timing command is not within the error tolerance range, according to the timing command, the time when the front-end device needs to be corrected is the timing time, however, a target back-end device exists currently, which indicates that a back-end device which is accessed to the front-end device and needs to be time-synchronized with the front-end device exists, and the target back-end device may not be time-synchronized with the front-end device because the front-end device is time-corrected, so that a timing confirmation request is sent to the back-end device needing to be time-corrected of the front-end device for a user to perform timing confirmation on the back-end device needing to be time-corrected by the front-end device.
Preferably, the timing confirmation request includes a confirmation request of whether to correct the timing of the front-end device and a sending time of sending the timing confirmation request in the front-end device, so that a user can know that the front-end device has been accessed by a back-end device which needs to be time-synchronized with the front-end device through the back-end device which needs to correct the timing of the front-end device, and the current time is kept consistent with the sending time of sending the timing confirmation request in the front-end device, and further, whether the back-end device which needs to correct the timing of the front-end device has mistakenly accessed the front-end device in different time zones or whether the front-end device has mistakenly accessed and corrected by the back-end device in different time zones can be checked according to the time.
S207: and acquiring a confirmation time-correcting command carrying the confirmation time-correcting time.
When it is determined that the time of the front-end device needs to be corrected according to the time of the front-end device, for example, a user clicks a time correction confirmation button in the rear-end device that needs to be corrected, the front-end device may obtain a time correction confirmation command carrying the time correction confirmation command, where the time correction confirmation command is sent from the rear-end device that needs to be corrected.
S208: and timing the front-end equipment according to the confirmed timing time.
S209: after the front-end equipment is calibrated, reporting the relevant time calibration information of the front-end equipment to the back-end equipment which is different from the equipment triggering the time calibration of the front-end equipment in the target back-end equipment, and storing the address of the back-end equipment needing time calibration of the front-end equipment into the storage space.
Specifically, the time-alignment related information of the front-end device may be reported to one or more back-end devices different from the device triggering the time alignment of the front-end device in the target back-end device according to the address of the target back-end device stored in the storage space. The detailed description of the timing related information of the front-end device can be seen from the description of the relevant part in step S101.
Here, considering that the backend device that does not need to be time-synchronized with the front-end device does not care whether the time of the front-end device is consistent with itself, and the device that triggers the time correction of the front-end device is consistent with the time of the front-end device, only the front-end device time correction related information is reported to the backend device that is different from the device that triggers the time correction of the front-end device in the target backend device, where the target backend device includes the backend device that has access to the front-end device and needs to be time-synchronized with the front-end device, so that the performance consumption of the front-end device is reduced, the speed of information reporting is increased, and the information reporting is more targeted.
Preferably, the time correction related information of the front-end device can be reported to all back-end devices different from the device triggering the time correction of the front-end device in the target back-end device, so that whether the back-end devices are consistent with the time of the front-end device or not can be checked in time, and whether back-end devices inconsistent with the time of the front-end device exist in the target back-end device or not can be checked more timely and comprehensively.
In an embodiment of the present invention, after the step S209, the method further includes a step S210: and under the condition that the time of the front-end equipment needs to be corrected again to be the time of one of the target back-end equipment, acquiring a timing command sent by one of the target back-end equipment.
Specifically, after checking that there is a back-end device with time inconsistent with that of a front-end device in the target back-end device, when the time of the front-end device needs to be re-calibrated to be the time of the back-end device with time inconsistent with that of the front-end device, for example, when monitoring and video recording is being performed on the front-end device by one back-end device in the target back-end device, it is found through the checking that the time of the back-end device is inconsistent with that of the front-end device after the front-end device is calibrated, however, in order to make the OSD time and the video recording time of the video recording consistent, when the front-end device needs to be re-calibrated by the back-end device, the front-end device will acquire a timing command sent by the back-end device, where the timing command carries the current time of the back-end device. The time correction related information of the front-end equipment is actively reported to timely check whether the front-end equipment and the back-end equipment are inconsistent, the time correction command sent by one back-end equipment of the target back-end equipment is obtained under the condition that the time of the front-end equipment needs to be corrected again to be the time of one back-end equipment of the target back-end equipment, and the time of the front-end equipment is corrected again.
In an embodiment of the present invention, after each time that the front-end device is calibrated, that is, after step S208, the time calibration times of the front-end device are also accumulated. Specifically, a parameter for accumulating the timing number of the front-end device may be stored in the front-end device, the initial value of the parameter is 0, after step S208 is executed each time, 1 is added to the parameter, and it is determined whether the current value of the parameter reaches a preset value, where when the parameter reaches the preset value, it indicates that the timing number of the front-end device reaches the preset number, and abnormal information is reported, so as to timely troubleshoot abnormal conditions. Here, the reporting of the abnormal information may be to one target backend device, to a plurality of target backend devices, to a mobile phone of an administrator or to a management server, or to all target backend devices.
Preferably, the preset value may be set to 3. Considering that the 1 st time is to be the time when the first back-end device accesses the front-end device to calibrate the front-end device, and the 2 nd time is to be the time when the first back-end device is mistakenly accessed to the front-end device in a time zone different from the time zone in which the first back-end device is located, after the back-end device in accordance with the time zone of the front-end device accesses the front-end device and sends a timing command, the front-end device is calibrated according to the time of the back-end device in accordance with the time zone of the front-end device through checking. The 2 times of time correction can be accepted, and in a normal case, after the 2 nd time correction process is checked, the time zones of the front-end device and the back-end device are already determined and unified, under the condition that the system clocks of the front-end device and the back-end device are normal, even if the back-end device sends a time correction command carrying the time correction time to the front-end device, under the condition that the time zones are unified, the time correction time should be consistent with the time of the front-end device without triggering the execution of time correction, and then if the 3 rd time correction occurs to the front-end device, it is indicated that the system clocks of the front-end device or the back-end device are abnormal, or the front-end device is mistakenly connected by the back-end device which is inconsistent with the time zone of the front-end device, therefore, when the time correction times of the front-end device reaches 3 times, abnormal information is reported, and abnormal conditions can be timely checked. The parameter may also be reset to 0 every fixed time, that is, the abnormal information is reported after the time calibration frequency of the front-end device reaches a preset frequency within the fixed time, for example, the parameter may be reset to 0 every 24 hours, and the abnormal information is reported after the time calibration frequency of the front-end device reaches 3 times within one day.
The embodiment of the invention provides a timing processing method, after a front-end device is calibrated, the timing related information of the front-end device is reported to a back-end device, different from a device triggering the front-end device to calibrate, in a target back-end device, the target back-end device comprises a back-end device which is accessed to the front-end device and needs to be time-synchronized with the front-end device, so that a user can timely know that the front-end device is calibrated and obtain the timing related information of the front-end device through the back-end device which has obtained the timing related information of the front-end device, and can timely investigate whether the back-end device with inconsistent time with the front-end device exists in the target back-end device according to the timing related information of the front-end device, thereby improving timeliness of checking the time inconsistency of the front-end device and the back-end device.
Referring to fig. 3, fig. 3 is a schematic flowchart of a specific application example of a timing processing method according to an embodiment of the present invention, and the example will be described below with reference to fig. 3.
S301: the method comprises the steps that a back-end device A sends a timing command a1 carrying timing Time Time _ A1 to a front-end device when accessing the front-end device, and the front-end device is not accessed by other back-end devices before the back-end device A is accessed.
At this Time, the back-end device a is a back-end device that needs to calibrate the front-end device, and the timing Time _ a1 is the Time for the back-end device a to send the timing command a1 to the front-end device.
S302: and the front-end equipment acquires the timing command a1 and judges whether a target back-end equipment exists or not.
For a detailed description of the target backend device and the storage space for storing the address of the target backend device, reference may be made to the description of the relevant part of step S202. Here, since the front-end device is not accessed by other back-end devices before the back-end device a is accessed, there is no target back-end device.
S303: when no target back-end device exists currently, the front-end device corrects the Time of the front-end device according to the Time correction Time Time _ A1, and the address of the back-end device A is stored in the storage space.
It should be noted that the address may be an internet protocol address of the backend device a, the backend device a may carry the internet protocol address of the backend device a in a message sent when communicating with the front-end device, and the front-end device may obtain the internet protocol address of the backend device a after obtaining the message sent by the backend device a, that is, after obtaining the timing command a1 sent by the backend device a. The Time of the front-end device is calibrated to be Time _ a1 by the front-end device, and after the address of the back-end device a is stored in the storage space, the back-end device a belongs to the target back-end device.
S304: and the back-end equipment B sends a timing command B carrying timing Time Time _ B1 to the front-end equipment when accessing the front-end equipment, wherein the back-end equipment is the second back-end equipment accessing the front-end equipment.
At this Time, the back-end device B is a back-end device that needs to correct the Time of the front-end device, and the Time correction Time _ B1 is the Time for the back-end device B to send the Time correction command B to the front-end device.
S305: and the front-end equipment acquires the timing command b and judges whether target back-end equipment exists or not.
At this time, the storage space is not empty, the address of the backend device a is stored in the storage space, and the backend device a is the existing target backend device.
S306: and currently, target back-end equipment exists, and the difference between the Time correcting Time Time _ B1 obtained by the front-end equipment through judgment and the Time when the front-end equipment obtains the Time correcting command B is not within an error allowable range.
S307: and the front-end equipment sends a timing confirmation request to the back-end equipment B.
S308: and the back-end equipment B sends a confirmation Time-correcting-needed command carrying a confirmation Time correcting Time Time _ B2 to the front-end equipment.
S309: the front-end equipment acquires a confirmation Time-correcting command carrying a confirmation Time-correcting Time Time _ B2, and carries out Time correction on the front-end equipment according to the Time-correcting Time Time _ B2.
The front-end device Time-corrects the Time of the front-end device to be Time _ B2.
S310: and after the front-end equipment is calibrated, the front-end equipment reports the time calibration related information of the front-end equipment to back-end equipment, which is different from equipment triggering the time calibration of the front-end equipment, in target back-end equipment.
The detailed description of the timing related information of the front-end device can be seen from the description of the relevant part in step S101. In this example, a back-end device of the target back-end devices that is different from the device that triggered the front-end device to correct the time is the back-end device a. Preferably, the flag indicating that the front-end device has been calibrated and the current Time _ B2 after being calibrated may be reported to the back-end device a. In this way, the user can know that the front-end device is calibrated through the back-end device a, and determine that the Time of the back-end device a is not synchronized with the Time of the front-end device by comparing the current Time of the back-end device a with the current Time _ B2 after the front-end device is calibrated.
S311: and the front-end equipment stores the address of the back-end equipment B into the storage space.
It should be noted that the address may be an internet protocol address of the back-end device B, the back-end device B may carry the internet protocol address of the back-end device B in a message sent when communicating with the front-end device, and the front-end device may obtain the internet protocol address of the back-end device B after obtaining the message sent by the back-end device B, that is, after obtaining the confirmation timing command sent by the back-end device B. And after the address of the back-end equipment B is stored in the storage space, the back-end equipment B belongs to the target back-end equipment.
Here, the step S310 may be before the step S311, or may be after the step S311, and the present invention is not limited herein.
It should be noted that, when the Time of the front-end device needs to be corrected again, for example, after being checked, it is found that the back-end device B is a back-end device that has been erroneously accessed to the front-end device, the front-end device should keep Time synchronization with the back-end device a, and the front-end device further obtains the timing command a2 carrying the timing Time _ a2 sent by the back-end device a.
An embodiment of the present invention provides a specific application example of a timing processing method, and after a front-end device is calibrated, reporting the front-end equipment timing related information to back-end equipment different from equipment triggering the front-end equipment timing in target back-end equipment, the target backend device comprises a backend device which has access to the front-end device and needs time synchronization with the front-end device, therefore, the user can timely know that the front-end equipment is calibrated and obtain the time calibration related information of the front-end equipment through the back-end equipment which obtains the time calibration related information of the front-end equipment, therefore, whether the target back-end equipment has the back-end equipment with time inconsistent with that of the front-end equipment can be checked in time according to the time correction related information of the front-end equipment, and the timeliness of checking the time inconsistent condition of the front-end equipment and the back-end equipment is improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a timing processing apparatus according to an embodiment of the present invention, where the apparatus includes:
a reporting module 401, configured to report, after the front-end device is calibrated, the time-calibration related information of the front-end device to a back-end device different from a device that triggers time calibration of the front-end device in a target back-end device, where the target back-end device includes a back-end device that has been accessed to the front-end device.
Specifically, the front-end device timing related information may include information indicating that the front-end device has been timed; the front-end device timing related information may also include information indicating that the front-end device has been timed and the current time after the front-end device has been timed; the time correction related information of the front-end equipment can also comprise at least one address of the back-end equipment which is accessed to the front-end equipment and needs to be time-synchronized with the front-end equipment.
In one embodiment of the present invention, the target backend device may include: a backend device that has access to the frontend device and needs to be time synchronized with the frontend device.
In one embodiment of the invention, the apparatus further comprises:
the timing frequency accumulation module is used for accumulating the timing frequency of the front-end equipment;
the reporting module is further configured to report the abnormal information when the timing frequency of the front-end device reaches a preset frequency.
In one embodiment of the invention, the apparatus further comprises: and the time correction command acquisition module is used for acquiring a time correction command sent by one of the target back-end devices under the condition that the time of the front-end device needs to be corrected again to be the time of one of the target back-end devices after the time correction related information of the front-end device is reported to the back-end device different from the device triggering the time correction of the front-end device in the target back-end devices.
The embodiment of the invention provides a timing processing device, which reports timing related information of a front-end device to a rear-end device different from a device triggering timing of the front-end device in a target rear-end device after the front-end device is calibrated, wherein the target rear-end device comprises a rear-end device which is accessed to the front-end device, so that a user can timely know that the front-end device is calibrated and obtain the timing related information of the front-end device through the rear-end device which obtains the timing related information of the front-end device, and can timely check whether the rear-end device with inconsistent time with the front-end device exists in the target rear-end device according to the timing related information of the front-end device, thereby improving timeliness of checking the inconsistent time of the front-end device and the rear-end device.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another timing processing apparatus according to an embodiment of the present invention, the apparatus includes:
the timing command obtaining module 501 is configured to obtain a timing command carrying timing time, which is sent by a back-end device that needs to perform timing on a front-end device.
A determining module 502, configured to determine whether a target backend device exists after the timing command is obtained; and the time correction unit is used for judging whether the difference between the time correction time and the time of the front-end equipment acquiring the time correction command is within an error allowable range or not under the condition that the target back-end equipment exists.
Specifically, the target backend device may include: a backend device that has access to the frontend device and needs to be time synchronized with the frontend device.
A storage module 503, configured to, in the absence of a target back-end device, perform timing on the front-end device according to the timing time, and store an address of the back-end device that needs to be calibrated in the storage space; the address of the back-end equipment needing timing to the front-end equipment is stored into the storage space under the condition that target back-end equipment exists and the difference between the timing time and the time when the front-end equipment acquires the timing command is within an error allowable range; and the memory unit is configured to, when there is a target backend device and a difference between the timing time and the time when the front-end device acquires the timing command is not within an error tolerance range, store the address of the backend device requiring timing of the front-end device into the memory space after the front-end device is calibrated according to the confirmed timing time.
A sending module 504, configured to send a timing confirmation request to the back-end device that needs to time the front-end device when there is a target back-end device and a difference between the timing time and the time when the front-end device obtains the timing command is not within an error tolerance.
And a time-correction-required-confirmation command acquiring module 505, configured to acquire a time-correction-required-confirmation command carrying the time-correction-required-confirmation time.
And a timing module 506, configured to perform timing on the front-end device according to the confirmed timing time.
A reporting module 507, configured to report, when there is a target backend device and a difference between the timing time and the time when the front-end device obtains the timing command is not within an error tolerance, the timing related information of the front-end device to a backend device different from a device that triggers timing of the front-end device in the target backend device after the front-end device is calibrated.
Specifically, the front-end device timing related information may include information indicating that the front-end device has been timed; the front-end device timing related information may also include information indicating that the front-end device has been timed and the current time after the front-end device has been timed; the time correction related information of the front-end equipment can also comprise at least one address of the back-end equipment which is accessed to the front-end equipment and needs to be time-synchronized with the front-end equipment.
In one embodiment of the invention, the apparatus further comprises:
the timing frequency accumulation module is used for accumulating the timing frequency of the front-end equipment;
the reporting module is further configured to report the abnormal information when the timing frequency of the front-end device reaches a preset frequency.
In an embodiment of the present invention, the timing command obtaining module is further configured to, after the reporting of the front-end device timing related information to a back-end device different from a device that triggers the front-end device timing in a target back-end device, obtain the timing command sent by one back-end device in the target back-end device when the time of the front-end device needs to be re-calibrated to be the time of the one back-end device in the target back-end device.
The embodiment of the invention provides another timing processing device, after a front-end device is calibrated, the timing related information of the front-end device is reported to a back-end device, which is different from a device triggering the front-end device to calibrate, in a target back-end device, and the target back-end device comprises a back-end device which is accessed to the front-end device and needs to be time-synchronized with the front-end device, so that a user can timely know that the front-end device is calibrated and obtain the timing related information of the front-end device through the back-end device which has obtained the timing related information of the front-end device, and can timely investigate whether the back-end device with inconsistent time with the front-end device exists in the target back-end device according to the timing related information of the front-end device, thereby improving timeliness of inspecting time inconsistency of the front-end device and back-end device.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a front-end device according to an embodiment of the present invention, where the front-end device includes:
a memory 601 for storing a computer program;
the processor 602 is configured to implement the steps of the timing processing method provided in the foregoing embodiment when executing the program stored in the memory.
In one embodiment of the invention, the front-end device may be a camera. The front-end device may include a lens, an image sensor, an a/D converter, and the like, in addition to the memory and the processor. Among them, the lens is generally a lens group made of optical glass; an image sensor, which may include a Charge Coupled Device (CCD), a Metal-Oxide Semiconductor (CMOS), and the like, is an important component of a photographing apparatus, and may be used to convert an optical signal into an electrical signal and further into pixel data; an a/D converter, i.e., an analog/digital converter, is used to convert the analog signal into a digital signal. The processor may include a data processor (DSP), a memory controller, an image compression encoder, and the like. The memory, which may include a built-in memory and a removable memory, may also be used to store image data.
The embodiment of the invention provides a front-end device, which reports time correction related information of the front-end device to a rear-end device different from a device triggering time correction of the front-end device in a target rear-end device after the front-end device is calibrated, wherein the target rear-end device comprises a rear-end device which is accessed into the front-end device, so that a user can timely know that the front-end device is calibrated and obtain the time correction related information of the front-end device through the rear-end device which obtains the time correction related information of the front-end device, and can timely check whether the rear-end device with time inconsistent with that of the front-end device exists in the target rear-end device according to the time correction related information of the front-end device, thereby improving the timeliness of checking the time inconsistent time of the front-end device and the rear-end device.
The embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the timing processing method provided in the above embodiment, where the computer-readable storage medium may be a read-only memory, a random access memory, a read-only optical disc, a magnetic tape, a floppy disk, an optical data storage device, and the like. After the front-end equipment is calibrated, the time calibration related information of the front-end equipment is reported to the rear-end equipment, different from the equipment triggering the time calibration of the front-end equipment, in the target rear-end equipment, the rear-end equipment which is accessed into the front-end equipment is included, therefore, a user can timely know that the front-end equipment is calibrated and obtain the time calibration related information of the front-end equipment through the rear-end equipment which obtains the time calibration related information of the front-end equipment, so that whether the rear-end equipment with time inconsistent with that of the front-end equipment exists in the target rear-end equipment can be timely checked according to the time calibration related information of the front-end equipment, and the timeliness of checking the time inconsistent condition of the front-end equipment and the rear-end equipment is improved.
The embodiment of the present invention further provides a computer program product, and when the computer program product runs on a computer, the computer executes the steps of implementing the timing processing method provided in the foregoing embodiment. The computer program product may include one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on or transmitted over a computer-readable storage medium. 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 incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), among others. After the front-end equipment is calibrated, the time calibration related information of the front-end equipment is reported to the rear-end equipment, different from the equipment triggering the time calibration of the front-end equipment, in the target rear-end equipment, the rear-end equipment which is accessed into the front-end equipment is included, therefore, a user can timely know that the front-end equipment is calibrated and obtain the time calibration related information of the front-end equipment through the rear-end equipment which obtains the time calibration related information of the front-end equipment, so that whether the rear-end equipment with time inconsistent with that of the front-end equipment exists in the target rear-end equipment can be timely checked according to the time calibration related information of the front-end equipment, and the timeliness of checking the time inconsistent condition of the front-end equipment and the rear-end equipment is improved.
For the apparatus, front-end device, computer-readable storage medium, and computer program product embodiments, the description is relatively simple as it is substantially similar to the method embodiments, and reference may be made to some descriptions of the method embodiments for relevant points.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those skilled in the art will appreciate that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware to perform the steps, and the program may be stored in a computer-readable storage medium, which is referred to herein as a storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (14)
1. A timing processing method is characterized by comprising the following steps:
after the front-end equipment is calibrated, reporting the relevant time calibration information of the front-end equipment to back-end equipment which is different from the equipment triggering the time calibration of the front-end equipment in target back-end equipment, wherein the target back-end equipment comprises back-end equipment which is accessed into the front-end equipment.
2. The method of claim 1,
the front-end equipment timing related information comprises information indicating that the front-end equipment is calibrated; or
The front-end equipment time correction related information comprises information indicating that the front-end equipment is time corrected and the current time after the front-end equipment is time corrected; or
The front-end equipment timing related information comprises at least one address of back-end equipment which is accessed to the front-end equipment and needs time synchronization with the front-end equipment.
3. The method according to claim 1, wherein a storage space for storing the address of the target backend device is stored in the front-end device, and a backend device corresponding to the address stored in the storage space belongs to the target backend device, and the target backend device includes: a backend device that has access to the frontend device and needs to be time synchronized with the frontend device.
4. The method of claim 3, further comprising:
acquiring a timing command carrying timing time and sent by the back-end equipment needing to perform timing on the front-end equipment;
judging whether target back-end equipment exists or not;
under the condition that no target back-end equipment exists, the front-end equipment is calibrated according to the time calibration time, and the address of the back-end equipment needing to be calibrated is stored in the storage space;
after the front-end device is calibrated, reporting the time calibration related information of the front-end device to a back-end device different from a device triggering the time calibration of the front-end device in a target back-end device, wherein the time calibration related information of the front-end device is: and under the condition that the target back-end equipment exists, reporting the time correction related information of the front-end equipment to back-end equipment which is different from the equipment triggering the time correction of the front-end equipment in the target back-end equipment after the front-end equipment is time-corrected.
5. The method of claim 4, further comprising:
under the condition that target back-end equipment exists, judging whether the difference between the timing time and the time when the front-end equipment acquires the timing command is within an error allowable range;
under the condition that the difference between the timing time and the time when the front-end equipment acquires the timing command is within an error allowable range, storing the address of the back-end equipment needing timing to the front-end equipment into the storage space;
after the front-end device is calibrated, reporting the time calibration related information of the front-end device to a back-end device different from a device triggering the time calibration of the front-end device in a target back-end device, wherein the time calibration related information of the front-end device is: and reporting the time correction related information of the front-end equipment to the back-end equipment which is different from the equipment triggering the time correction of the front-end equipment in the target back-end equipment after the front-end equipment is time-corrected under the condition that the target back-end equipment exists and the difference between the time correction time and the time when the front-end equipment acquires the time correction command is not within an error allowable range.
6. The method of claim 5, further comprising:
when the difference between the timing time and the time of the front-end equipment for acquiring the timing command is not within the error allowable range, sending a timing confirmation request to the back-end equipment needing timing to the front-end equipment;
acquiring a confirmation time-correcting-needed command carrying confirmation time correction;
timing the front-end equipment according to the confirmed timing time;
and after the front-end equipment is calibrated according to the confirmed calibration time, storing the address of the rear-end equipment needing to be calibrated into the storage space.
7. The method according to claim 4, wherein the timing command is a timing command sent by the back-end device that needs to time the front-end device when accessing the front-end device.
8. The method of claim 1, further comprising:
accumulating the time correction times of the front-end equipment;
reporting abnormal information under the condition that the time correction times of the front-end equipment reach preset times;
the method further includes reporting the front-end device timing related information to a target back-end device and a back-end device different from the device triggering the front-end device timing, where the method includes:
and under the condition that the time of the front-end equipment needs to be corrected again to be the time of one of the target back-end equipment, acquiring a timing command sent by one of the target back-end equipment.
9. A timing processing apparatus, characterized in that the apparatus comprises:
the reporting module is configured to report, after the front-end device is calibrated, the time-calibration related information of the front-end device to a back-end device different from a device that triggers time calibration of the front-end device in a target back-end device, where the target back-end device includes a back-end device that has been accessed to the front-end device.
10. The apparatus according to claim 9, wherein a storage space for storing the address of the target backend device is stored in the front-end device, and a backend device corresponding to the address stored in the storage space belongs to the target backend device, and the target backend device includes: a backend device that has access to the frontend device and needs to be time synchronized with the frontend device.
11. The apparatus of claim 10, further comprising:
the timing command acquisition module is used for acquiring a timing command carrying timing time, which is sent by the back-end equipment and needs to be calibrated to the front-end equipment;
the judging module is used for judging whether target back-end equipment exists or not after the timing command is acquired;
the storage module is used for storing the address of the back-end equipment needing timing to the front-end equipment into the storage space when the front-end equipment is calibrated according to the timing time under the condition that target back-end equipment does not exist;
the reporting module is configured to report, in the presence of a target back-end device, after a front-end device is calibrated, the time-calibration related information of the front-end device to a back-end device different from a device that triggers time calibration of the front-end device in the target back-end device.
12. The apparatus according to claim 11, wherein the determining module is further configured to determine, in the presence of a target backend device, whether a difference between the timing time and the time when the front-end device acquires the timing command is within an error tolerance range;
the storage module is further configured to store the address of the back-end device requiring time correction of the front-end device into the storage space when a target back-end device exists and a difference between the time correction time and the time when the front-end device obtains the time correction command is within an error allowable range;
the reporting module is configured to report, when there is a target backend device and a difference between the timing time and the time when the front-end device obtains the timing command is not within an error tolerance range, the timing related information of the front-end device to a backend device different from a device that triggers timing of the front-end device in the target backend device after the front-end device is calibrated.
13. The apparatus of claim 12, the apparatus further comprising:
a sending module, configured to send a timing confirmation request to the back-end device that needs to time-calibrate the front-end device when there is a target back-end device and a difference between the timing time and a time when the front-end device obtains the timing command is not within an error tolerance range;
the confirmation timing-needed command acquisition module is used for acquiring a confirmation timing-needed command carrying the confirmation timing time;
the timing module is used for timing the front-end equipment according to the confirmed timing time;
the storage module is further configured to store the address of the back-end device that needs to be calibrated to the front-end device into the storage space after the front-end device is calibrated according to the confirmed calibration time.
14. The apparatus of claim 9, further comprising:
the timing frequency accumulation module is used for accumulating the timing frequency of the front-end equipment;
the reporting module is further configured to report the abnormal information when the timing frequency of the front-end device reaches a preset frequency;
the time correction command obtaining module is further configured to obtain a time correction command sent by one of the target back-end devices when time correction of the front-end device is required to be performed again for the time of the one of the target back-end devices after the time correction related information of the front-end device is reported to a back-end device, different from the device triggering the time correction of the front-end device, in the target back-end device.
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| CN1859616A (en) * | 2006-01-20 | 2006-11-08 | 华为技术有限公司 | Method for correcting terminal device local time and terminal device |
| CN103024356A (en) * | 2012-12-11 | 2013-04-03 | 浙江宇视科技有限公司 | Gear cutting management and processing method and device |
| CN108184091A (en) * | 2017-12-28 | 2018-06-19 | 浙江宇视科技有限公司 | A kind of video monitoring equipment dispositions method and device |
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| CN1859616A (en) * | 2006-01-20 | 2006-11-08 | 华为技术有限公司 | Method for correcting terminal device local time and terminal device |
| CN103024356A (en) * | 2012-12-11 | 2013-04-03 | 浙江宇视科技有限公司 | Gear cutting management and processing method and device |
| CN108184091A (en) * | 2017-12-28 | 2018-06-19 | 浙江宇视科技有限公司 | A kind of video monitoring equipment dispositions method and device |
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