CN114710834B - Intelligent communication method and system for computer image - Google Patents
Intelligent communication method and system for computer image Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 10
- 238000013468 resource allocation Methods 0.000 claims abstract description 83
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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Abstract
The invention discloses a computer image intelligent communication method and a system, wherein the method comprises the following steps: step 1: collecting computer images by a wireless camera A and a wireless camera B; step 2: a wireless camera A receives a resource allocation message A sent by a computer image acquisition center A; and step 3: after receiving the resource allocation message a, the wireless camera a determines the starting time of the resource location a and the frequency band a in which the resource location a is located based on the resource allocation message a; and 4, step 4: in a given time before the starting time of the resource position A, the wireless camera A monitors a given sequence sent by other wireless cameras in a frequency band A; and 5: if the frequency band A does not monitor the given sequence transmitted by other wireless cameras within a period of time, the wireless camera A transmits the given sequence in the frequency band A.
Description
Technical Field
The invention relates to the technical field of computer image management, in particular to a computer image intelligent communication method and a computer image intelligent communication system.
Background
Computer images are essential basic data for scientific research, safety management, risk control, intelligent production and machine learning. The current computer image collection process has the problem that devices of a plurality of mechanisms interfere with each other. For example, in an environmental protection area, forestry and animal protection departments may need to set up infrared cameras to monitor wild animals and forest safety, scientific research departments may need to set up multiband cameras to capture data for scientific research, and during a search and rescue process, an unmanned aerial vehicle of the search and rescue department may need to feed aerial images back to a command center to implement the rescue. The demands of the several departments on the images are different (for example, the demands of image resolution, the demands of optical frequency bands, etc.), and the expenditure levels and sources are different, so that it is impossible to require the multiple departments to share one set of system, and when multiple systems coexist, how to ensure that the systems do not interfere with each other is a development difficulty of the current technology.
Disclosure of Invention
In order to achieve the purpose, the invention provides a computer image intelligent communication method and a system, which are characterized in that the method comprises the following steps:
collecting computer images by a wireless camera A and a wireless camera B;
the method comprises the steps that a wireless camera A receives a resource allocation message A sent by a computer image acquisition center A, wherein the resource allocation message A comprises instructions of a plurality of resource positions;
after receiving the resource allocation message a, the wireless camera a determines the starting time of the resource location a and the frequency band a in which the resource location a is located based on the resource allocation message a;
in a given time before the starting time of the resource position A, the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band A;
if the frequency band A does not monitor the given sequence sent by other wireless cameras within a period of time, the wireless camera A sends the given sequence in the frequency band A;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band A all the time within a given time before the starting time of the resource position A, the wireless camera A transmits the collected computer image to the computer image acquisition center A by using the resource of the resource position A.
In a preferred embodiment, resource allocation message a only includes an indication of resource location a and an indication of resource location B;
the method comprises the following steps:
the wireless camera B receives a resource allocation message B sent by a computer image acquisition center B, wherein the resource allocation message B comprises instructions for a plurality of resource positions;
after receiving the resource allocation message B, the wireless camera B determines the start time of the resource location a and the frequency band a in which the resource location a is located based on the resource allocation message B;
in a given time before the starting time of the resource position A, the wireless camera B monitors a given sequence sent by other wireless cameras in the frequency band A;
if the frequency band A does not hear the given sequence transmitted by other wireless cameras within a period of time, the wireless camera B transmits the given sequence in the frequency band A.
In a preferred embodiment, the method comprises:
if the given sequence transmitted by the wireless camera B is monitored in the frequency band A within a period of time, the wireless camera A does not transmit the given sequence in the frequency band A;
if the wireless camera A monitors a given sequence sent by the wireless camera B in the frequency band A within a given time before the starting time of the resource position A, the wireless camera A determines the starting time of the resource position B and the frequency band B in which the resource position B is located based on the resource allocation message A;
in a given time before the starting time of the resource position B, the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band B;
if the given sequence sent by other wireless cameras is not monitored in the frequency band B within a period of time, the wireless camera A sends the given sequence in the frequency band B;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band B all the time within a given time before the starting time of the resource position B, the wireless camera A transmits the collected computer images to the computer image acquisition center A by using the resource of the resource position B.
In a preferred embodiment, the method comprises:
if the given sequence sent by other wireless cameras is monitored in the frequency band B within a period of time, the wireless camera A does not send the given sequence in the frequency band B;
if the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band B within a given time before the starting time of the resource position B, the wireless camera A does not send the collected computer image to the computer image acquisition center A in the frequency band B;
after the collected computer image is not transmitted to the computer image collection center a, the wireless camera a transmits an unsuccessful transmission indicator to the computer image collection center a on the reserved frequency band C.
In a preferred embodiment, the method comprises:
after receiving the indicator which is not successfully sent, the computer image acquisition center A increases the resource allocation priority of the computer image acquisition center A;
after receiving the unsuccessful transmission indicator, the computer image acquisition center A transmits a command A to the computer image acquisition center B so that the computer image acquisition center B lowers the resource allocation priority of the computer image acquisition center B;
after the indicator of unsuccessful transmission is sent to the computer image acquisition center A, the wireless camera A receives a resource allocation message C sent by the computer image acquisition center A, wherein the resource allocation message C comprises instructions of a plurality of resource positions;
after receiving the resource allocation message C, the wireless camera a determines the starting time of the resource location C and the frequency band a where the resource location C is located based on the resource allocation message C;
if the frequency band A does not monitor the given sequence sent by other wireless cameras within a period of time, the wireless camera A sends the given sequence in the frequency band A;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band A all the time within a given time before the starting time of the resource position C, the wireless camera A transmits the collected computer image to the computer image acquisition center A by using the resource of the resource position C.
In a preferred embodiment, the given sequence transmitted by the wireless camera a is associated with the identity identifier of the wireless camera a, the given sequence transmitted by the wireless camera B is associated with the identity identifier of the wireless camera B, and the given sequences transmitted by the other wireless cameras are associated with the identity identifiers of the other wireless cameras.
In a preferred embodiment, the method comprises:
based on a given sequence sent by a wireless camera B and monitored in a frequency band A, the wireless camera A determines that resources of a resource position A are occupied by the wireless camera B;
based on a given sequence sent by other wireless cameras and monitored in the frequency band B, the wireless camera A determines that the resource of the resource position B is occupied by other wireless cameras;
after the collected computer image is not sent to the computer image acquisition center A, the wireless camera A sends unsuccessful sending indication information to the computer image acquisition center A on the reserved frequency band C, wherein the unsuccessful sending indication information indicates to the computer image acquisition center A that the resource of the resource position A is occupied by the wireless camera B and the resource of the resource position B is occupied by other wireless cameras.
In a preferred embodiment, the method comprises:
after receiving the indication information which is not successfully sent, the computer image acquisition center A raises the resource allocation priority of the computer image acquisition center A;
after receiving the unsuccessful transmission instruction information, the computer image acquisition center A transmits a command B to the computer image acquisition center B so that the computer image acquisition center B lowers the priority of resource allocation to the wireless camera B;
after receiving the unsuccessful transmission instruction information, the computer image acquisition center a transmits a command C to the computer image acquisition center B so that the computer image acquisition center B lowers the priority of allocating resources to other wireless cameras.
The invention provides a computer image intelligent communication system, which is characterized in that the system is configured to execute the method.
Compared with the prior art, the invention has the advantages that when the resource allocation conflict is solved, the prior art scheme has obvious defects: the first is that the time delay is large, when allocating resources each time, it is first necessary to exchange several pieces of information between the computer image acquisition centers, the second is that the cost is large, theoretically, the resource allocation information is only one piece of information, but in order to send one piece of resource allocation information, at least three pieces of information are needed to be sent between the computer image acquisition centers, the third is that the resource allocation flexibility is reduced, a certain computer image acquisition center generally prefers resources with good channel quality, which means that other computer image acquisition centers cannot select resources on the time frequency with good channel quality for a long time. The present invention aims to solve the aforementioned basic problems by not unduly complicating the design with respect to the prior art.
Drawings
FIG. 1 is a flow diagram of a method according to an embodiment of the present invention.
FIG. 2 is a system architecture diagram according to one embodiment of the invention.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As described in the background art, because the needs of multiple departments or units for images are different, and the expenditure levels and sources of the units are different, it is impossible to require multiple departments or units to share one image acquisition system, and when multiple systems coexist, the problem of mutual interference among multiple systems will occur. Taking two sets of systems coexisting as an example, the system a has a central server a and a plurality of cameras controlled by the servers, the system B has a different central server B and a plurality of cameras controlled by the servers, the system a is used for forest farm security, for example, the system B is used for scientific research in scientific research institutes, in this case, for the consideration of image quality and security, information between the systems a and B cannot be intercommunicated, the only way is that the system a collects images required by the system a, and the system B collects images required by the system B, but the two sets of systems are located at the same geographic location, so the two sets of systems may necessarily need to share radio resources, for example, the system a may want to use resources of the time-frequency position a, and the system B may want to use resources of the time-frequency position a at the same time, which causes a problem of mutual interference of the systems. Fig. 2 is a schematic diagram illustrating the architecture of such a coexistence system, and as shown in the figure, a computer image collection center a may be subordinate to the system a, a computer image collection center B may be subordinate to the system B, and the computer image collection center a and the computer image collection center B may communicate information related to resource allocation that does not involve secrets, but may not communicate image data therebetween; the computer image acquisition center A at least controls the wireless camera A, the computer image acquisition center B at least controls the wireless camera B and other wireless cameras (other wireless cameras can also be named as wireless cameras C, in short, other wireless cameras are third cameras different from the wireless cameras A and B), the computer image acquisition center A can control more cameras, but the computer image acquisition center A cannot control the wireless camera B and other wireless cameras. In transmissions, collisions may occur in this type of system, and a simple and easily conceivable solution consists in: when the computer image acquisition center A needs to allocate resources, the computer image acquisition center A sends the information of the pre-allocated resources to the computer image acquisition center B, and then the computer image acquisition center B can avoid allocating resources selected by the computer image acquisition center A, and the computer image acquisition center A can start sending the information after receiving confirmation from the computer image acquisition center B that the resources are not selected at the resources selected by the computer image acquisition center A, but the method has obvious defects: the first is that the time delay is large, when allocating resources each time, the computer image acquisition centers a and B are required to exchange several pieces of information, the second is that the cost is large, the resource allocation information is theoretically only one piece of information, but in order to send one piece of resource allocation information, the computer image acquisition centers a and B need to send at least three pieces of information in total, the third is that the flexibility of resource allocation is reduced, the computer image acquisition center a preselects resources with good channel quality in advance generally, and at this time, the computer image acquisition center B cannot select resources on a time frequency with good channel quality for a long time. The present invention aims to solve the foregoing basic problems by means of a design that is not too complicated, and the technical solution of the present invention has an additional technical effect in addition to solving the foregoing basic problems.
FIG. 1 is a flow diagram of a method according to an embodiment of the invention. As shown in the figure, the method of the present invention comprises the steps of:
step 1: collecting computer images by a wireless camera A and a wireless camera B; wherein, the wireless camera B belongs to a computer image acquisition center B;
step 2: the method comprises the steps that a wireless camera A receives a resource allocation message A sent by a computer image acquisition center A, wherein the resource allocation message A comprises instructions of a plurality of resource positions; in the definition of the text, each resource position has a period of time and a certain width of frequency, that is, each resource position corresponds to a segment of time-frequency resource, and a resource position can be understood as a segment of resource; in one embodiment, the resource allocation message a may indicate two resource locations at a time (at least in the embodiment of the present invention, the resource allocation message a cannot indicate only one resource location), three resource locations, four resource locations, or more resource locations, but the more resource locations indicated by the resource allocation message a, the greater the potential transmission overhead;
and step 3: after receiving the resource allocation message a, the wireless camera a determines the starting time of the resource location a and the frequency band a in which the resource location a is located based on the resource allocation message a;
and 4, step 4: in a given time before the starting time of the resource position A, the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band A; in one embodiment, the given time is notified to the wireless camera a by other signaling, for example, when the wireless camera a is initially connected with the computer image acquisition center a, the computer image acquisition center a may allocate a given time to the wireless camera a;
and 5: if the frequency band A does not monitor the given sequence transmitted by other wireless cameras within a period of time, the wireless camera A transmits the given sequence in the frequency band A; those skilled in the art will appreciate that the length of the period of time should be shorter than the length of the given time; in one embodiment, a given sequence may be a predefined sequence that does not represent any meaning, for example for the case of 50 total wireless cameras (here, the total of all cameras controlled by computer image acquisition centers a and B, and assuming that there are no other systems in the same geographic area), the length of the sequence may be 6 bits, and then the system may specify that the 6-bit sequence is pre-occupied and that the data communicated between any camera and the computer image acquisition center cannot be the 6-bit sequence; of course, the predefined given sequence requires that the computer image acquisition centers a and B know each other when the system is established, which is a step understood by those skilled in the art and will not be described herein;
step 6: if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band A all the time within a given time before the starting time of the resource position A, the wireless camera A transmits the collected computer images to the computer image acquisition center A by using the resource of the resource position A. In one embodiment, if the computer image collection center a has not reached the starting time point of resource location B after the resource location a receives the collected computer image sent by wireless camera a, the computer image collection center a may allocate the resources of resource location B to a certain wireless camera.
In a preferred embodiment, resource allocation message a only includes an indication of resource location a and an indication of resource location B;
the method comprises the following steps:
the wireless camera B receives a resource allocation message B sent by a computer image acquisition center B, wherein the resource allocation message B comprises instructions for a plurality of resource positions;
after receiving the resource allocation message B, the wireless camera B determines the start time of the resource location a and the frequency band a in which the resource location a is located based on the resource allocation message B; in one embodiment, the resource allocation message B may indicate a resource location a and a resource location B, and in one embodiment, the resource allocation message B may also indicate a resource location a and a resource location C, and in one embodiment, the resource allocation message B may also indicate a resource location a, a resource location C, and a resource location D;
in a given time before the starting time of the resource position A, the wireless camera B monitors a given sequence sent by other wireless cameras in the frequency band A;
if the frequency band A does not hear the given sequence transmitted by other wireless cameras within a period of time, the wireless camera B transmits the given sequence in the frequency band A.
In a preferred embodiment, the method comprises:
if the given sequence transmitted by the wireless camera B is monitored in the frequency band A within a period of time, the wireless camera A does not transmit the given sequence in the frequency band A; those skilled in the art will appreciate that the length of the period of time should be shorter than the length of the given time;
if the wireless camera A monitors a given sequence sent by the wireless camera B in the frequency band A within a given time before the starting time of the resource position A, the wireless camera A determines the starting time of the resource position B and the frequency band B in which the resource position B is located based on the resource allocation message A;
in a given time before the starting time of the resource position B, the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band B; in one embodiment, as shown in fig. 2, the other wireless cameras are controlled by a computer image acquisition center B, which may send a resource allocation message to the other wireless cameras, which may include an indication of resource location B;
if the frequency band B does not monitor the given sequence transmitted by other wireless cameras within a period of time, the wireless camera A transmits the given sequence in the frequency band B;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band B all the time within a given time before the starting time of the resource position B, the wireless camera A transmits the collected computer image to the computer image acquisition center A by using the resource of the resource position B.
In a preferred embodiment, the method comprises:
if the given sequence sent by other wireless cameras is monitored in the frequency band B within a period of time, the wireless camera A does not send the given sequence in the frequency band B;
if the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band B within a given time before the starting time of the resource position B, the wireless camera A does not send the collected computer image to the computer image acquisition center A in the frequency band B;
after the collected computer image is not transmitted to the computer image collection center a, the wireless camera a transmits an unsuccessful transmission indicator to the computer image collection center a on the reserved frequency band C. It should be understood by those skilled in the art that the reserved frequency band C is different from the aforementioned frequency bands a and B, and the wireless camera a may be configured to transmit the unsuccessful transmission indicator on the reserved frequency band C at predetermined time intervals, and the unsuccessful transmission indicator may carry an identity identifier of the wireless camera a.
In a preferred embodiment, the method comprises:
after receiving the indicator which is not successfully sent, the computer image acquisition center A increases the resource allocation priority of the computer image acquisition center A; in an embodiment, the priority of resource allocation of the computer image acquisition center a may be increased, after the computer image acquisition center a receives the unsuccessful transmission indicator, the computer image acquisition center a allocates more resource positions to the wireless camera a, in a specific embodiment, for example, in the resource allocation message a, the computer image acquisition center a is allocated two resource positions to the infinite camera a, then in the resource allocation message C, the computer image acquisition center a allocates more than two resource positions, for example, three resource positions, four resource positions, or more resource positions, to the wireless camera, and it should be understood by those skilled in the art that the greater the number of resource positions, the lower the probability that the wireless camera is occupied by other wireless cameras in each resource position; in one embodiment, the resource allocation priority of the computer image acquisition center a may be increased, where the computer image acquisition center a then instructs the wireless camera a to adjust the duration of the "period of time" to be shorter, and the shorter the period of time is, the easier the wireless camera a occupies a certain resource position;
after receiving the unsuccessful transmission indicator, the computer image acquisition center A transmits a command A to the computer image acquisition center B so that the computer image acquisition center B lowers the resource allocation priority of the computer image acquisition center B; in one embodiment, the resource allocation priority of the computer image acquisition center B may be reduced, when the computer image acquisition center B subsequently allocates resource positions to the wireless cameras after receiving the command a, the computer image acquisition center B allocates fewer resource positions, and in one embodiment, the resource allocation priority of the computer image acquisition center B may be reduced by the computer image acquisition center B subsequently instructing the wireless cameras B or other wireless cameras to adjust the duration of the "period of time" to be longer;
after the indicator which is not successfully sent is sent to the computer image acquisition center A, the wireless camera A receives a resource allocation message C sent by the computer image acquisition center A, wherein the resource allocation message C comprises instructions of a plurality of resource positions; in one embodiment, the resource allocation message C indicates at least three resource locations;
after receiving the resource allocation message C, the wireless camera a determines the starting time of the resource location C and the frequency band a where the resource location C is located based on the resource allocation message C;
if the frequency band A does not monitor the given sequence sent by other wireless cameras within a period of time, the wireless camera A sends the given sequence in the frequency band A;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band A all the time within a given time before the starting time of the resource position C, the wireless camera A transmits the collected computer image to the computer image acquisition center A by using the resource of the resource position C.
In a preferred embodiment, the given sequence transmitted by the wireless camera a is associated with the identity identifier of the wireless camera a, the given sequence transmitted by the wireless camera B is associated with the identity identifier of the wireless camera B, and the given sequences transmitted by the other wireless cameras are associated with the identity identifiers of the other wireless cameras. In one embodiment, the association of the sequence with the identity identifier of the wireless camera may be established by the following table, in which the sequence is predetermined to be 6 bits long, so that a total number of cameras for a plurality of systems is required not to exceed 64,
in a preferred embodiment, the method comprises:
based on a given sequence sent by a wireless camera B and monitored in a frequency band A, the wireless camera A determines that resources of a resource position A are occupied by the wireless camera B;
based on a given sequence sent by other wireless cameras and monitored in the frequency band B, the wireless camera A determines that the resource of the resource position B is occupied by other wireless cameras;
after the collected computer image is not sent to the computer image acquisition center A, the wireless camera A sends unsuccessful sending indication information to the computer image acquisition center A on the reserved frequency band C, wherein the unsuccessful sending indication information indicates to the computer image acquisition center A that the resource of the resource position A is occupied by the wireless camera B and the resource of the resource position B is occupied by other wireless cameras.
In a preferred embodiment, the method comprises:
after receiving the indication information which is not successfully sent, the computer image acquisition center A increases the resource allocation priority of the computer image acquisition center A; the method for improving the resource allocation priority of the computer image acquisition center A is as described above;
after receiving the unsuccessful transmission instruction information, the computer image acquisition center A transmits a command B to the computer image acquisition center B so that the computer image acquisition center B lowers the priority of resource allocation to the wireless camera B; the method for reducing the resource allocation priority of the computer image acquisition center B is as described above; those skilled in the art should understand that in this embodiment, the computer image collection center B only reduces the priority of resource allocation for the wireless camera B, and in a specific example, for example, the wireless camera a has already experienced that the resource of the resource location a is occupied by the wireless camera B, then for the wireless camera a and the wireless camera B that have data transmission, the wireless camera B has already transmitted data once, so the transmission priority of the wireless camera B itself can be reduced, and the wireless camera a should preferentially transmit the data next time of resource allocation; through the scheme of the invention, a person skilled in the art can understand that the computer image acquisition center A and the computer image acquisition center B do not need to be communicated in advance during each resource allocation, and compared with the prior art, the transmission efficiency of the invention is improved;
after receiving the unsuccessful transmission instruction information, the computer image acquisition center a transmits a command C to the computer image acquisition center B so that the computer image acquisition center B lowers the priority of allocating resources to other wireless cameras. The method for reducing the priority of resource allocation of the computer image acquisition center B is as described above.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (3)
1. An intelligent communication method for computer image is characterized by that,
the method comprises the following steps:
collecting computer images by a wireless camera A and a wireless camera B;
the method comprises the steps that a wireless camera A receives a resource allocation message A sent by a computer image acquisition center A, wherein the resource allocation message A comprises instructions of a plurality of resource positions;
after receiving the resource allocation message A, the wireless camera A determines the starting time of the resource position A and the frequency band A of the resource position A based on the resource allocation message A;
in a given time before the starting time of the resource position A, the wireless camera A monitors a given sequence sent by other wireless cameras in a frequency band A;
if the frequency band A does not monitor the given sequence sent by other wireless cameras within a period of time, the wireless camera A sends the given sequence in the frequency band A;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band A all the time within the given time before the starting time of the resource position A, the wireless camera A transmits the collected computer images to the computer image acquisition center A by using the resources of the resource position A,
wherein the content of the first and second substances,
the resource allocation message a comprises only an indication of resource location a and an indication of resource location B;
the method further comprises the following steps:
the method comprises the steps that a wireless camera B receives a resource allocation message B sent by a computer image acquisition center B, wherein the resource allocation message B comprises instructions of a plurality of resource positions;
after receiving the resource allocation message B, the wireless camera B determines, based on the resource allocation message B, a start time of the resource location a and a frequency band a in which the resource location a is located;
in a given time before the starting time of the resource position A, the wireless camera B monitors a given sequence sent by other wireless cameras in a frequency band A;
if the frequency band a does not hear the given sequence transmitted by the other wireless cameras for a period of time, the wireless camera B transmits the given sequence in the frequency band a,
the method further comprises the following steps:
if the given sequence transmitted by the wireless camera B is monitored in the frequency band A within a period of time, the wireless camera A does not transmit the given sequence in the frequency band A;
if the wireless camera A monitors a given sequence sent by the wireless camera B in the frequency band A within a given time before the starting time of the resource position A, the wireless camera A determines the starting time of the resource position B and the frequency band B in which the resource position B is located based on the resource allocation message A;
in a given time before the starting time of the resource position B, the wireless camera A monitors a given sequence sent by other wireless cameras in a frequency band B;
if the given sequence sent by other wireless cameras is not monitored in the frequency band B within a period of time, the wireless camera A sends the given sequence in the frequency band B;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band B all the time within the given time before the starting time of the resource position B, the wireless camera A transmits the collected computer images to the computer image acquisition center A by using the resources of the resource position B,
the method further comprises the following steps:
if a given sequence sent by other wireless cameras is monitored in the frequency band B within a period of time, the wireless camera A does not send the given sequence in the frequency band B;
if the wireless camera A monitors a given sequence sent by other wireless cameras in the frequency band B within a given time before the starting time of the resource position B, the wireless camera A does not send the collected computer image to the computer image acquisition center A in the frequency band B;
after the collected computer image is not transmitted to the computer image collection center a, the wireless camera a transmits an unsuccessful transmission indicator to the computer image collection center a on a reserved frequency band C,
the method further comprises the following steps:
after receiving the unsuccessful sending indicator, the computer image acquisition center A increases the resource allocation priority of the computer image acquisition center A;
after receiving the unsuccessful transmission indicator, the computer image acquisition center a transmits a command a to the computer image acquisition center B so that the computer image acquisition center B lowers the resource allocation priority of the computer image acquisition center B;
after an unsuccessful transmission indicator is sent to the computer image acquisition center A, a wireless camera A receives a resource allocation message C sent by the computer image acquisition center A, wherein the resource allocation message C comprises instructions of a plurality of resource positions;
after receiving the resource allocation message C, the wireless camera a determines, based on the resource allocation message C, a start time of a resource location C and a frequency band a in which the resource location C is located;
if the frequency band A does not monitor the given sequence sent by other wireless cameras within a period of time, the wireless camera A sends the given sequence in the frequency band A;
if the wireless camera A does not monitor the given sequence transmitted by other wireless cameras in the frequency band A all the time within the given time before the starting time of the resource position C, the wireless camera A transmits the collected computer images to the computer image acquisition center A by using the resources of the resource position C,
wherein the other wireless camera is a third camera different from the wireless camera a and the wireless camera B.
2. A computer graphics intelligent communications method as in claim 1,
the given sequence transmitted by the wireless camera A is associated with the identity identifier of the wireless camera A, the given sequence transmitted by the wireless camera B is associated with the identity identifier of the wireless camera B, and the given sequences transmitted by other wireless cameras are associated with the identity identifiers of the other wireless cameras.
3. A computer image intelligent communication system is characterized in that,
the system is configured to perform the method of one of claims 1-2.
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