CN116614562A - Efficient data transmission method and data transmission system - Google Patents

Abstract

The invention discloses a high-efficiency data transmission method, which comprises the following steps: transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier; after the server receives the first image request message, determining, by the server, a first requested image based on the first identifier of the requested image; after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory; if the server determines that the first requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the first image request message further based on the first priority; if the server judges that the priority of the first image request message is high, the first requested image before being updated is sent to the display terminal by the server.

Description

Efficient data transmission method and data transmission system

Technical Field

The present invention relates to the field of data transmission technologies, and in particular, to a high-efficiency data transmission method and a data transmission system.

Background

The infrared image is an image formed by the infrared remote sensor receiving the infrared rays reflected by the ground object or emitted by the infrared remote sensor. At present, many infrared image acquisition systems all comprise an infrared image acquisition device (the device acquires infrared images), a server (the server performs necessary image processing on the infrared image raw data acquired by the infrared image acquisition device and transmits the processed infrared image data to a display device), and the display device. The existing infrared image acquisition system still has the defects of low flexibility and long waiting time of users during data transmission.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a high-efficiency data transmission method, which is characterized by comprising the following steps:

transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier;

after the server receives the first image request message, determining, by the server, a first requested image based on the first identifier of the requested image;

after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory;

if the server determines that the first requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the first image request message further based on the first priority;

if the server judges that the priority of the first image request message is high, the first requested image before being updated is sent to the display terminal by the server.

In a preferred embodiment, the memory is configured to: storing, by the memory, the first requested image before the update into the reserve buffer if the memory receives a command to update the first requested image; the server sends the first requested image before being updated to the display terminal specifically comprises the following steps: reading, by the server, a first requested image stored in the reserve buffer prior to the update; transmitting, by the server, a first image data packet to the first display terminal, wherein the first image data packet includes a first requested image before the update and a first image identifier, wherein the first image identifier indicates that an image in the first image data packet is the first requested image before the update; after the server sends the first image data packet to the first display terminal, a first delete instruction is sent by the server to the memory, wherein the first delete instruction instructs the memory to delete the first requested image prior to the update stored in the standby buffer.

In a preferred embodiment, the data transmission method further includes: after the first requested image is updated at the memory, transmitting, by the server, a second image data packet to the data relay device, wherein the second image data packet includes the updated first requested image and a terminal identifier of the first display terminal, wherein the data relay device serves a portion of the display terminals of the plurality of display terminals that transmit the high-priority image request message; after the server sends the second image data packet to the data relay device, the server sends a first prompt instruction to the memory; after the memory receives the first hint instruction, if the memory receives a command to update the updated first requested image, the memory no longer stores the updated first requested image in the standby buffer.

In a preferred embodiment, the data transmission method further includes: after the data relay device receives the second image data packet, the data relay device establishes communication connection with the first display terminal; the updated first requested image is transmitted to the first display terminal by the data relay device.

In a preferred embodiment, the data transmission method further includes: after the first display terminal receives the first image data packet, the first requested image before the update is presented to the user by the first display terminal, and the presented image is prompted to the user to be the first requested image before the update.

In a preferred embodiment, the data transmission method further includes: transmitting a second image request message to the server by the second display terminal, wherein the second image request message at least comprises a second identifier of the requested image and a second priority identifier; after the server receives the second image request message, determining, by the server, a second requested image based on the second identifier of the requested image; after the server determines the second requested image, determining, by the server, whether the second requested image is being updated at the memory; if the server determines that the second requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the second image request message further based on the second priority; if the server judges that the priority of the second image request message is low, the server controls the memory to finish updating the second requested image first, and the server sends a second deleting instruction to the memory, wherein the second deleting instruction instructs the memory to delete the second requested image before updating stored in the standby buffer; and transmitting the updated second requested image to the second display terminal by the server.

In a preferred embodiment, the memory is configured to: storing, by the memory, the second requested image prior to the update into the reserve buffer if the memory receives a command to update the second requested image; the server sends the updated second requested image to the second display terminal specifically includes: and transmitting, by the server, a third image data packet to the display terminal, wherein the third image data packet includes the second requested image after the update and a second image identifier, wherein the second image identifier indicates that the image in the third image data packet is the second requested image after the update.

The present invention provides an efficient data transmission system comprising means for: transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier; after the server receives the first image request message, determining, by the server, a first requested image based on the first identifier of the requested image; after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory; if the server determines that the first requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the first image request message further based on the first priority; if the server judges that the priority of the first image request message is high, the first requested image before being updated is sent to the display terminal by the server.

In a preferred embodiment, the memory is configured to: storing, by the memory, the first requested image before the update into the reserve buffer if the memory receives a command to update the first requested image; the server sends the first requested image before being updated to the display terminal specifically comprises the following steps: reading, by the server, a first requested image stored in the reserve buffer prior to the update; transmitting, by the server, a first image data packet to the first display terminal, wherein the first image data packet includes a first requested image before the update and a first image identifier, wherein the first image identifier indicates that an image in the first image data packet is the first requested image before the update; after the server sends the first image data packet to the first display terminal, a first delete instruction is sent by the server to the memory, wherein the first delete instruction instructs the memory to delete the first requested image prior to the update stored in the standby buffer.

In a preferred embodiment, the data transmission system further comprises means for: after the first requested image is updated at the memory, transmitting, by the server, a second image data packet to the data relay device, wherein the second image data packet includes the updated first requested image and a terminal identifier of the first display terminal, wherein the data relay device serves a portion of the display terminals of the plurality of display terminals that transmit the high-priority image request message; after the server sends the second image data packet to the data relay device, the server sends a first prompt instruction to the memory; after the memory receives the first hint instruction, if the memory receives a command to update the updated first requested image, the memory no longer stores the updated first requested image in the standby buffer.

Compared with the prior art, the invention has the following advantages: the existing infrared image acquisition system has insufficient flexibility in certain scenes, so that the waiting time of certain users is prolonged inappropriately; existing infrared image acquisition systems are equivalent to mandating that all display terminals have to wait for seconds or tens of seconds when certain conditions are encountered. Therefore, the existing infrared image acquisition system still has the defects of low flexibility and long waiting time of users during data transmission. To this end, the invention proposes a related solution.

Drawings

FIG. 1 is a system architecture diagram of one embodiment of the present invention.

FIG. 2 is a method flow diagram of one embodiment of the present invention.

Fig. 3 is a schematic diagram of a system architecture with a data relay device according to an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.

The description of the background art is only an understanding of the present technology by the inventor, and nothing described in the background art does not constitute an admission or an admission that the applicant is prior art in the sense of the patent laws.

As described in the background art, the existing infrared image acquisition system still has the defects of low flexibility and long waiting time for users during data transmission. In particular, existing infrared image acquisition systems are not flexible enough to face the following scenarios, resulting in an undue increase in latency for some users: for example, a user a requests an infrared image of a certain monitoring area from a server at a first moment (assumed to be image 1), and the server receives a new frame of the infrared image of the certain area transmitted by the infrared image acquisition device just before the user a requests the image 1, so that when the server receives the request of the user a requests the image 1, the server may just update the infrared image of the certain monitoring area (in this specification, the update process includes the whole process of image processing, rendering, and storing in a memory). When the existing infrared image acquisition system faces this situation, the server is required to complete the updating process of the infrared image first, and then the updated image is sent to the display terminal, and since the updating process may last for several seconds (if the server adopts a mechanical hard disk, the updating time may be as long as ten seconds), the existing infrared image acquisition system is equivalent to a requirement that all display terminals have to wait for several seconds or ten seconds when encountering the foregoing situation. Therefore, the existing infrared image acquisition system still has the defects of low flexibility and long waiting time of users during data transmission.

Example 1

FIG. 1 is a system architecture diagram of one embodiment of the present invention. As shown in the figure, the data transmission system of the present invention includes (an image acquisition device is not shown) a server and a plurality of display terminals, and the server includes at least an image processing module (for example, GPU, etc.), a memory controller, a memory, and a standby buffer. The server may send the relevant commands and instructions to the memory controller, and the memory controller may then control the memory to perform corresponding operations. The spare buffer may be a solid state memory with a smaller memory space than the memory.

Example 2

Fig. 2 is a flow chart of a data transmission method according to an embodiment of the present invention. As shown in the figure, the data transmission method of the present invention includes:

step 1: transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier; in one example, for example, the first identifier of the requested image indicates a particular monitoring area, and after receiving the first identifier of the requested image, the server sends the current monitoring image of the area to the first display terminal;

step 2: after the server receives the first image request message, determining, by the server, a first requested image based on the first identifier of the requested image;

step 3: after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory; in practical applications, after the server starts executing the instruction to update the first requested image (for example, when the server starts image processing on an image that is determined to be stored to the storage address of the first requested image), the server first locks the first requested image on the memory (locks the first requested image, that is, controls the memory so that the first requested image cannot be read and transmitted by the transmitter), so the server can determine that the first requested image is being updated at the memory as long as the first requested image read into the memory is in a locked state; of course, if the server has already begun writing a new first requested image to memory, the first requested image may also be considered to be updated at the memory;

step 4: if the server determines that the first requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the first image request message further based on the first priority; it will be appreciated by those skilled in the art that if the server determines that the first requested image is not being updated at the memory, the server may directly send the first requested image to the first display terminal. In one example, for certain specific monitoring areas, the monitoring image before update (i.e. the first requested image before update) and the monitoring image after update are both of reference value to the user, then the image request message sent by the display terminal held by the user at this time may have a high priority, whereas for other certain specific monitoring areas, the monitoring image before update is of no reference value to the user or even misdirects the user, and only the monitoring image after update is of reference value to the user, then the image request message sent by the display terminal held by the user at this time may have a low priority; the invention only gives a judging principle and no specific judging example because the invention can be used for various application scenes;

step 5: if the server judges that the priority of the first image request message is high, the first requested image before being updated is sent to the display terminal by the server.

Example 3

In embodiment 3, the memory is configured to: storing, by the memory, the first requested image before the update into the reserve buffer if the memory receives a command to update the first requested image; in one example, for example, when the server starts image processing on an image that is determined to be stored to the storage address of the first requested image, the server may instruct the memory to lock the first requested image in the memory, at which time "the memory receives a command to update the first requested image" may be considered; it will be understood by those skilled in the art that in the present invention, the memory is configured to store an image before update in the reserve buffer whenever a command to update the image stored in the memory is received, regardless of whether the image is an image requested by a low-priority image request message or an image requested by a high-priority image request message; also, as will be appreciated by those skilled in the art, even if the server does not receive the image request message, the memory stores the stored image in the reserve buffer; in order to avoid that the spare buffer is full, the image stored in the memory which is not updated may have a valid time, and at the expiration of the valid time, the spare buffer may delete the image which is not updated and not transmitted if the image which is not updated is still not read and transmitted by the transmitter.

The server sends the first requested image before being updated to the display terminal specifically comprises the following steps:

reading, by the server, a first requested image stored in the reserve buffer prior to the update; adding a spare buffer may enable the image update in the memory and the transmission of the first requested image before the update to be performed in parallel, specifically, if there is no spare buffer, the server needs to suspend the update of the first requested image and read and transmit the first requested image before the update to the transmitter, and then can continue the update of the first requested image, when the image update in the memory and the transmission of the first requested image before the update are performed in series, the execution time is long;

transmitting, by the server, a first image data packet to the first display terminal, wherein the first image data packet includes a first requested image before the update and a first image identifier, wherein the first image identifier indicates that an image in the first image data packet is the first requested image before the update; in one example, the first image identifier is used to indicate that the first requested image received by the first display terminal is an image before the update, but not an image after the update;

after the server sends the first image data packet to the first display terminal, a first delete instruction is sent by the server to the memory, wherein the first delete instruction instructs the memory to delete the first requested image prior to the update stored in the standby buffer.

Example 4

In embodiment 4, the data transmission method further includes:

after the first requested image is updated at the memory, transmitting, by the server, a second image data packet to the data relay device, wherein the second image data packet includes the updated first requested image and a terminal identifier of the first display terminal, wherein the data relay device serves a portion of the display terminals of the plurality of display terminals that transmit the high-priority image request message; in one example, a pictorial example of a data relay device may be seen in fig. 3. As shown in fig. 3, in the system, there may be a plurality of data relay apparatuses (although only two are shown in the figure, there may be more data relay apparatuses in practice), one data relay apparatus may communicate with a plurality of display terminals, that is, one data relay apparatus may serve a plurality of display terminals, and as the method described in the present invention, the display terminals that need to be served by the data relay apparatus are all display terminals that have sent high-priority image request messages, and furthermore, in order to share transmission pressure, each data relay apparatus serves only a part of the display terminals, but cannot serve all the display terminals. The server sending the updated first requested image to the data relay device has at least the advantage that: the server may save the storage space of the reserve buffer and reduce the number of times of reading and writing of the reserve buffer, for example, if the server receives a command to update the first requested image after updating for the second time, the memory needs to store the first requested image after updating to the reserve buffer again according to the description of embodiment 3, and if the data relay device is added, according to the step of embodiment 4, since the memory has already "backed up" the first requested image after updating to the data relay device, when the memory receives the command to update the first requested image after updating (i.e., the command to update the first requested image after updating for the second time), the memory does not need to store the first requested image after updating to the reserve buffer any more, so the space of the reserve buffer is saved, frequent reading and writing to the reserve buffer is avoided, and the probability of damage to the reserve buffer is reduced. Although the data relay device is added, the alternatives of the data relay device (for example, a plurality of data relay devices may be arranged in an area, one user may be served by a plurality of data relay devices, and the alternatives of the data relay device are extremely strong, but one user may only be served by one server, and if the server is maintained, the user will not accept the service) and the costs (for example, the data relay device only has a transceiver, a storage function and a limited calculation function) are far lower than those of the server, so the scheme still has considerable gains.

After the server sends the second image data packet to the data relay device, the server sends a first prompt instruction to the memory;

after the memory receives the first hint instruction, if the memory receives a command to update the updated first requested image, the memory no longer stores the updated first requested image in the standby buffer.

The data transmission method further comprises the following steps: after the data relay device receives the second image data packet, the data relay device establishes communication connection with the first display terminal; the updated first requested image is transmitted to the first display terminal by the data relay device.

The data transmission method further comprises the following steps: after the first display terminal receives the first image data packet, the first requested image before the update is presented to the user by the first display terminal, and the presented image is prompted to the user to be the first requested image before the update. In one example, the display device may display the first requested image before the update while marking the image in the form of a watermark on the image is the image before the update, rather than the image after the update, to avoid confusion by the user.

Example 5

In embodiment 5, the data transmission method further includes:

transmitting a second image request message to the server by the second display terminal, wherein the second image request message at least comprises a second identifier of the requested image and a second priority identifier;

after the server receives the second image request message, determining, by the server, a second requested image based on the second identifier of the requested image;

after the server determines the second requested image, determining, by the server, whether the second requested image is being updated at the memory;

if the server determines that the second requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the second image request message further based on the second priority;

if the server judges that the priority of the second image request message is low, the server controls the memory to finish updating the second requested image first, and the server sends a second deleting instruction to the memory, wherein the second deleting instruction instructs the memory to delete the second requested image before updating stored in the standby buffer; it will be appreciated by those skilled in the art that if the server determines that the priority of the second image request message is low, the server does not perform the method described in embodiments 1-4, but rather first completes the update of the second requested image, the method of embodiment 5 being similar to that described in the background.

And transmitting the updated second requested image to the second display terminal by the server.

In a preferred embodiment, the memory is configured to: storing, by the memory, the second requested image prior to the update into the reserve buffer if the memory receives a command to update the second requested image;

the server sends the updated second requested image to the second display terminal specifically includes:

and transmitting, by the server, a third image data packet to the display terminal, wherein the third image data packet includes the second requested image after the update and a second image identifier, wherein the second image identifier indicates that the image in the third image data packet is the second requested image after the update.

Example 6

The present invention provides an efficient data transmission system comprising means for:

transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier;

after the server receives the first image request message, determining, by the server, a first requested image based on the first identifier of the requested image;

after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory;

if the server determines that the first requested image is being updated at the memory, identifying Fu Panduan, by the server, a priority of the first image request message further based on the first priority;

if the server judges that the priority of the first image request message is high, the first requested image before being updated is sent to the display terminal by the server.

In a preferred embodiment, the memory is configured to: storing, by the memory, the first requested image before the update into the reserve buffer if the memory receives a command to update the first requested image;

the server sends the first requested image before being updated to the display terminal specifically comprises the following steps:

reading, by the server, a first requested image stored in the reserve buffer prior to the update;

transmitting, by the server, a first image data packet to the first display terminal, wherein the first image data packet includes a first requested image before the update and a first image identifier, wherein the first image identifier indicates that an image in the first image data packet is the first requested image before the update;

after the server sends the first image data packet to the first display terminal, a first delete instruction is sent by the server to the memory, wherein the first delete instruction instructs the memory to delete the first requested image prior to the update stored in the standby buffer.

Further, the data transmission system further comprises means for:

after the first requested image is updated at the memory, transmitting, by the server, a second image data packet to the data relay device, wherein the second image data packet includes the updated first requested image and a terminal identifier of the first display terminal, wherein the data relay device serves a portion of the display terminals of the plurality of display terminals that transmit the high-priority image request message;

after the server sends the second image data packet to the data relay device, the server sends a first prompt instruction to the memory;

after the memory receives the first hint instruction, if the memory receives a command to update the updated first requested image, the memory no longer stores the updated first requested image in the standby buffer.

Claims (10)

1. An efficient data transmission method, characterized in that the data transmission method comprises the steps of:

transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier;

after the server receives the first image request message, determining, by the server, a first requested image based on a first identifier of the requested image;

after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory;

if the server determines that the first requested image is being updated at the memory, determining, by the server, a priority of the first image request message further based on the first priority identifier;

and if the server judges that the priority of the first image request message is high, the server sends the first requested image before being updated to the display terminal.

2. The data transmission method of claim 1, wherein the memory is configured to: storing, by the memory, the first requested image prior to the update into a standby buffer if the memory receives a command to update the first requested image;

the server sends the first requested image before being updated to the display terminal specifically comprises the following steps:

reading, by a server, a first requested image stored in the reserve buffer prior to the update;

transmitting, by a server, a first image data packet to the first display terminal, wherein the first image data packet includes a first requested image before the update and a first image identifier, wherein the first image identifier indicates that an image in the first image data packet is the first requested image before the update;

after the server sends a first image data packet to the first display terminal, a first deleting instruction is sent to the memory by the server, wherein the first deleting instruction instructs the memory to delete the first requested image before the update stored in the standby buffer.

3. The data transmission method according to claim 2, wherein the data transmission method further comprises:

after the first requested image is updated at the memory, transmitting, by the server, a second image data packet to the data relay device, wherein the second image data packet includes the updated first requested image and a terminal identifier of the first display terminal, wherein the data relay device serves a portion of the plurality of display terminals that transmit the high-priority image request message;

after the server sends the second image data packet to the data relay device, the server sends a first prompt instruction to the memory;

after the memory receives the first prompt instruction, if the memory receives a command to update the updated first requested image, the memory no longer stores the updated first requested image in the standby buffer.

4. The data transmission method according to claim 3, wherein the data transmission method further comprises:

after the data relay device receives the second image data packet, establishing communication connection with the first display terminal by the data relay device;

the updated first requested image is transmitted to the first display terminal by a data relay device.

5. The data transmission method according to claim 4, wherein the data transmission method further comprises:

after the first image data packet is received by the first display terminal, the first requested image before the update is presented to the user by the first display terminal, and the presented image is prompted to the user to be the first requested image before the update.

6. The data transmission method according to claim 1, wherein the data transmission method further comprises:

transmitting a second image request message to the server by the second display terminal, wherein the second image request message at least comprises a second identifier of the requested image and a second priority identifier;

determining, by the server, a second requested image based on a second identifier of the requested image after the server receives the second image request message;

after the server determines the second requested image, determining, by the server, whether the second requested image is being updated at the memory;

if the server determines that the second requested image is being updated at the memory, determining, by the server, a priority of the second image request message further based on the second priority identifier;

if the server judges that the priority of the second image request message is low, controlling a memory by the server to firstly finish updating the second requested image, and sending a second deleting instruction to the memory by the server, wherein the second deleting instruction instructs the memory to delete the second requested image before updating stored in the standby buffer;

and transmitting the updated second requested image to the second display terminal by the server.

7. The data transmission method of claim 6, wherein the memory is configured to: storing, by the memory, the second requested image prior to the update into a reserve buffer if the memory receives a command to update the second requested image;

the server sends the updated second requested image to the second display terminal specifically includes:

and sending, by the server, a third image data packet to the display terminal, wherein the third image data packet includes the updated second requested image and a second image identifier, wherein the second image identifier indicates that the image in the third image data packet is the updated second requested image.

8. An efficient data transmission system, characterized in that the data transmission system comprises means for:

transmitting a first image request message to a server by a first display terminal, wherein the first image request message at least comprises a first identifier of a requested image and a first priority identifier;

after the server receives the first image request message, determining, by the server, a first requested image based on a first identifier of the requested image;

after the server determines the first requested image, determining, by the server, whether the first requested image is being updated at the memory;

if the server determines that the first requested image is being updated at the memory, determining, by the server, a priority of the first image request message further based on the first priority identifier;

and if the server judges that the priority of the first image request message is high, the server sends the first requested image before being updated to the display terminal.

9. The data transmission system of claim 8, wherein the memory is configured to: storing, by the memory, the first requested image prior to the update into a standby buffer if the memory receives a command to update the first requested image;

the server sends the first requested image before being updated to the display terminal specifically comprises the following steps:

reading, by a server, a first requested image stored in the reserve buffer prior to the update;

transmitting, by a server, a first image data packet to the first display terminal, wherein the first image data packet includes a first requested image before the update and a first image identifier, wherein the first image identifier indicates that an image in the first image data packet is the first requested image before the update;

after the server sends a first image data packet to the first display terminal, a first deleting instruction is sent to the memory by the server, wherein the first deleting instruction instructs the memory to delete the first requested image before the update stored in the standby buffer.

10. The data transmission system of claim 9, wherein the data transmission system further comprises means for:

after the first requested image is updated at the memory, transmitting, by the server, a second image data packet to the data relay device, wherein the second image data packet includes the updated first requested image and a terminal identifier of the first display terminal, wherein the data relay device serves a portion of the plurality of display terminals that transmit the high-priority image request message;

after the server sends the second image data packet to the data relay device, the server sends a first prompt instruction to the memory;

after the memory receives the first prompt instruction, if the memory receives a command to update the updated first requested image, the memory no longer stores the updated first requested image in the standby buffer.