WO2015018271A1

WO2015018271A1 - Method and device for sharing printing within family

Info

Publication number: WO2015018271A1
Application number: PCT/CN2014/082404
Authority: WO
Inventors: 叶小玲; 杨俊�; 吕鑫
Original assignee: 华为终端有限公司
Priority date: 2013-08-09
Filing date: 2014-07-17
Publication date: 2015-02-12
Also published as: CN104346109A

Abstract

Related to are a method and device for sharing printing within a family. The method comprises: when receiving a printing request, a terminal device sending a negotiation capability request message to a home gateway; receiving a negotiation capability response message returned by the home gateway, and according to the negotiation capability response message, determining the printing capability of the home gateway; and according to the printing capability of the home gateway, dividing service contents in the printing request into at least one printing file segment, and sending the printing file segment to the home gateway for printing. Therefore, in the case where the memory is limited, the present invention supports the printing of large files, thereby preventing a gateway device from being in an abnormal condition, reducing the occupancy of resources of a printing sharing device, and shortening the printing time.

Description

Home sharing printing method and device

The present application claims priority to Chinese Patent Application No. 201310347302, the entire disclosure of which is hereby incorporated by reference. Technical field

The present invention relates to the field of shared printing technologies, and in particular, to a home sharing printing method and apparatus.

Background technique

The home gateway supports the Universal Serial Bus (USB) printing function, which enables sharing of print services within the home. Home network devices can print files or pictures through a USB printer connected to the home gateway.

SAMBA is a software that implements the Server Message Block (SMB) protocol on the operating system Linux or UNIX. It consists of a server and a client program. The role of the SAMBA server is to share the printer, notify the presence and name of the network user's printer, and answer the PC print information, and deliver the print content to the Common UNIX Printing System (CUPS) for three-way interaction. In this process, the print file is transmitted to the gateway as a complete task through the SMB protocol. After the entire file transfer is completed, the SAMBA server prints the file through the CUPS command.

However, since the home gateway is different from a personal computer (PC), its memory (cache space) is limited. When the size of the printed file exceeds the memory requirement of the gateway device, the gateway device may be abnormal. Affect the normal use of the gateway device, and even cause the gateway to crash. - - Invention content

The invention provides a home sharing printing method and device, which supports large file printing in case of limited memory, avoids abnormality of the gateway device, reduces resource occupation of the printing sharing device, and shortens printing time.

The first aspect provides a home sharing printing method, the method comprising:

Receiving the print request, the terminal device sends the negotiation capability request message to the home gateway; receiving the negotiation capability response message returned by the home gateway, and determining the printing capability of the home gateway according to the negotiation capability response message ;

And dividing the service content in the print request into at least one print file segment according to the printing capability of the home gateway, and sending the print file segments one by one to the home gateway for printing.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the negotiation capability response packet carries a first parameter value that reflects a printing capability of the home gateway;

Determining, according to the negotiation capability response message, the printing capability of the home gateway, specifically:

Determining, according to the first parameter value in the negotiation capability response message, the printing capability of the home gateway.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the determining, according to the printing capability of the home gateway, the service content in the print request is divided into at least one print file segment, specifically:

And encoding the service content in the print request by page, and acquiring the data and data size of the single page; connecting the encoded business content according to the page, accumulating the data size in the connected page, and connecting the connected data Combining a print file segment and making the data of each of the print file segments large, not exceeding the data capacity corresponding to the first parameter value of the print capability of the home gateway.

In conjunction with the second possible implementation of the first aspect, the third possible implementation in the first aspect In the method, the negotiation capability response message further carries a second parameter value reflecting a working state of the printer connected to the home gateway;

Determining, according to the negotiation capability response message, the printing capability of the home gateway, further comprising:

Determining an operating state of the printer according to the second parameter value;

If the printer is in an idle state, dividing the service content in the print request into at least one print file segment according to the printing capability of the home gateway;

If the printer is in an active state, enter a wait delay state;

If the printer is in a full load operation state and the data capacity corresponding to the first parameter value is zero, the printing is canceled.

In conjunction with the third possible implementation of the first aspect, in the fourth possible implementation manner of the first aspect, after the acquiring the data and data size of the single page, the method further includes:

When the data of the single page is larger than the data capacity corresponding to the first parameter value of the printing capability of the home gateway, determining the working state of the printer according to the second parameter value in the negotiation capability response message If the printer is in an idle state, cancel printing; if the printer is in the working state, enter a waiting delay state, and when the preset first waiting delay ends, send the negotiation capability request message to the Home gateway.

In conjunction with the second possible implementation of the first aspect, in a fifth possible implementation of the first aspect, the data size of the print file segment is sequentially incremented according to the order of the print file segments.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the sending, by the sending, the printing file segment to the home gateway for printing, specifically includes:

Determining whether the number of the print file segments of the service content in the print request exceeds one, and if yes, sending the print file segments one by one to the home gateway for printing; if not, the print file is The segment is sent to the home gateway for printing. With the sixth possible implementation of the first aspect, in a seventh possible implementation manner of the first aspect, the sending, by the sending, the print file segment to the home gateway for printing, specifically includes:

Sending one of the print file segments to the home gateway for printing;

When the print file segment is printed, the negotiation capability request message is sent to the home gateway again, and the negotiation capability response message returned by the home gateway is received again, and the next printing of the print file segment is performed.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, before the resending the negotiation capability request message to the home gateway, the method further includes: determining the last time Whether the time distance of sending the negotiation capability request message to the home gateway exceeds a preset second waiting delay, and if yes, sending the negotiation capability request message again; otherwise, entering a waiting delay state.

With reference to the seventh possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, after the receiving the negotiation capability response message returned by the home gateway, the method further includes:

And determining, according to the re-received negotiation capability response message, the printing capability of the home gateway, and when the printing capability of the home gateway changes, adjusting a print file segment of the service content in the print request.

In a second aspect, a home sharing printing method is further provided, where the method includes:

When receiving the negotiation capability request message sent by the terminal device, the home gateway constructs a negotiation capability response message, where the negotiation capability response message carries a first parameter value reflecting the printing capability of the home gateway;

Receiving, by the terminal device, the service content in the print request is divided into the print file segments sent after the at least one print file segment according to the printing capability of the home gateway, and controlling the printer to print the received The print file segment.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the receiving, by the terminal device, the negotiation capability response packet, when the terminal device sends the negotiation capability request packet, specifically includes:

When receiving the negotiation capability request message sent by the terminal device, the home gateway determines whether the print capability request message is limited in size, and if so, statistics the remaining data capacity of the home gateway, and the remaining data capacity As the first parameter value, otherwise, the first parameter value is set as a preset first identifier.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the negotiation capability response packet further carries a printer working status that is connected to the home gateway. Second parameter value;

After the remaining data capacity is used as the first parameter value, the method further includes:

When the remaining data capacity is not zero, it is determined whether there is a file being printed, and if so, the second parameter value is set to an identifier that is in an active state; otherwise, the second parameter value is set to be idle. The identity of the state;

When the remaining data capacity is zero, the second parameter value is set to an identifier at a full load operating state.

In a third aspect, a terminal device is further provided, where the terminal device includes:

a transceiver module, configured to receive a print request, and when receiving the print request, send a negotiation capability request message to the home gateway, and receive a negotiation capability response message returned by the home gateway;

a processing module, configured to determine, according to the negotiation capability response message received by the transceiver module, the printing capability of the home gateway, and the printing received by the transceiver module according to the printing capability of the home gateway The service content in the request is divided into at least one print file segment, and the print file segments are sent to the home gateway one by one through the transceiver module for printing. In combination with the third aspect, in a first possible implementation manner of the third aspect, the negotiation capability response packet carries a first parameter value that reflects a printing capability of the home gateway;

The processing module is specifically configured to determine a printing capability of the home gateway according to the first parameter value in the negotiation capability response message.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the processing module is specifically configured to code the service content in the print request received by the transceiver module by a page, and obtain a single page Data and data size; and, the encoded business content is connected by page, accumulating the data size in the connected page, combining the connected data into one print file segment, and making each of the print files The size of the data of the segment does not exceed the data capacity corresponding to the first parameter value of the printing capability of the home gateway.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the negotiation capability response packet received by the transceiver module further carries a reflection and the home gateway a second parameter value of the connected printer operating state;

The processing module is further configured to determine an operating state of the printer according to the second parameter value; if the printer is in an idle state, divide the service content in the print request according to the printing capability of the home gateway At least one print file segment;

If the printer is in an active state, enter a wait delay state;

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the processing module is further configured to: when the data size of the single page exceeds the printing capability of the home gateway When the first parameter value corresponds to the data capacity, the working state of the printer is determined according to the second parameter value in the negotiation capability response message, and if the printer is in the idle state, canceling printing; if the printer is in the working state, Then enter the wait delay state and preset the first waiting delay At the end, the negotiation capability request message is sent to the home gateway again.

With reference to the second possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the data size of the print file segment divided by the processing module is sequentially performed according to the sequence of the print file segment Increment.

With reference to the third aspect, in a sixth possible implementation manner of the third aspect, the processing module is configured to send the print file segment to the home gateway for printing, and specifically includes determining, in the print request, Whether the number of the print file segments of the business content exceeds one, and if so, the print file segments are sent one by one to the home gateway for printing; if not, the print file segments are sent to the family The gateway prints.

With reference to the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the processing module is configured to send the print file segments one by one to the home gateway for printing, specifically Including the sending, by the transceiver module, one of the print file segments to the home gateway for printing; when the print file segment is printed, sending the negotiation capability request message to the home gateway through the transceiver module again. And receiving the negotiation capability response message returned by the home gateway again, and performing negotiation printing of the next print file segment.

With reference to the seventh possible implementation manner of the third aspect, in an eighth possible implementation manner of the third aspect, before the processing module sends the negotiation capability request packet to the home gateway by using the transceiver module again And determining whether the time distance of the last time the negotiation capability request message is sent to the home gateway exceeds a preset second waiting delay, and if yes, sending the negotiation capability request message through the transceiver module again. ; Otherwise, enter the state of waiting for delay.

With reference to the seventh possible implementation manner of the third aspect, in a ninth possible implementation manner of the third aspect, the processing module is further used after receiving the negotiation capability response message returned by the home gateway again Re-determining the printing capability of the home gateway according to the re-received negotiation capability response message, and adjusting the service in the print request when the printing capability of the home gateway changes — — The print file segment of the content.

The fourth aspect, further provides a home gateway of the printing device, where the home gateway includes: a transceiver, configured to receive a negotiation capability request message sent by the terminal device;

a processor, configured to: when the transceiver receives the print capability request message, construct a negotiation capability response message, where the negotiation capability response message carries a first parameter that reflects a printing capability of the home gateway Value

The transceiver is further configured to receive a print file segment that is sent by the terminal device after the service content in the print request is divided into at least one print file segment according to the printing capability in the negotiation capability response message;

The processor is further configured to control the printer to print the received segment of the print file after the transceiver receives the segment of the print file.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the processor is specifically configured to: when the transceiver receives the negotiation capability request packet, determine the print capability request packet Whether the size is limited, if yes, the remaining data capacity of the home gateway is counted, and the remaining data capacity is used as the first parameter value, otherwise, the first parameter value is set as a preset first identifier. .

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the negotiation capability response packet configured by the processor further carries a reflection and the home gateway a second parameter value of the connected printer operating state;

After the processor uses the remaining data capacity as the first parameter value, it is further used to determine whether there is a file being printed when the remaining data capacity is not zero, and if so, Setting the second parameter value as an identifier in an active state; otherwise setting the second parameter value to an identifier in an idle state; and, when the remaining data capacity is zero, setting the second parameter value It is the identifier of the working state at full load. The home sharing printing method and device provided by the present invention support large file printing under a memory-limited type device such as a home gateway, avoiding abnormality of the gateway device, reducing resource occupation of the printing sharing device, and shortening printing time. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a structural diagram of a home sharing printing system according to an embodiment of the present invention;

2 is a flowchart of a home sharing printing method according to Embodiment 1 of the present invention;

3 is a flow chart of a specific method of S 1 06 in FIG. 2;

4 is a flowchart of a home sharing printing method according to Embodiment 1 of the present invention;

FIG. 5 is a schematic structural diagram of a terminal device according to Embodiment 2 of the present invention;

FIG. 6 is a schematic structural diagram of a home gateway of a printing device according to Embodiment 2 of the present invention. detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments. The home sharing printing method and apparatus provided by the embodiments of the present invention can be used in the case where sharing printing is required, and is particularly suitable for a home network with limited configuration such as memory. 1 is a structural diagram of a home sharing printing system according to an embodiment of the present invention. As shown in FIG. 1, the home sharing printing system includes a terminal device 1, a home gateway 2, and a printer 3 that are sequentially connected. The terminal device 1 may be a PC or other network device, and can interact with the user to receive a print request initiated by the user. The home gateway 2 may be a SAMBA server or the like, and a home gateway 2 may be connected to a plurality of terminal devices 1 or may be connected to a plurality of printers 3. In general, the home gateway 2 utilizes the SMB protocol between the SAMBA server and the terminal device 1. — Communicate to transfer the content that needs to be printed in the print request, and use the CUPS program to send the printer to the printer via the original (RAW) datagram socket protocol or l ine pr inter remote (LPR). Documentation.

Embodiment 1

1 is a flowchart of a home sharing printing method on a terminal device side provided by this embodiment. As shown in FIG. 1, the home sharing printing method of the present invention includes:

The S10 terminal device receives the print request, and when receiving the print request, proceeds to S102.

S102. The terminal device sends a negotiation capability request message to the home gateway.

When the user has a file (document or picture, etc.) that needs to be printed, a print request is initiated by the terminal device (ie, the client). When receiving the print request, the terminal device sends a negotiation capability request message to the home gateway.

The negotiation capability request message is used for the transmission storage capability of the server that the terminal device requests the home gateway. The negotiation capability request message may include: a file that processes the request or a path Fid, a requested information level, and the like. The file or path Fid field for processing the request is a path for identifying the negotiation requested by the terminal device, so as to extend the storage path of the print file determined by the client. The Fid field is empty by default, and can also be the last negotiation capability, or the print file storage path specified by the user. When the Fid field is the default empty field, the negotiation capability request message can be considered as having no limit size. The requested information level is the priority level used to identify the request sent by the terminal device.

S103. The terminal device receives the negotiation capability response message returned by the home gateway.

The Negotiation Capability Reply message is used by the home gateway to reply to the print capability of the server. The negotiation capability response message carries a first parameter value reflecting the printing capability of the home gateway.第一 The first parameter is used to identify the printing capability of the home gateway, and after receiving the negotiation capability request message, the home gateway determines its own remaining data capacity (ie, printing capability), and then uses the remaining data capacity as a reflection printing capability. The first parameter value, usually the Count field, is fed back to the terminal device through the negotiation capability response message. – Of course, in order to achieve the purpose of protecting resources, the Count field in the Negotiation Capability Reply message can also be the current remaining capacity* configuration factor, which is configured by the user, such as 50%.

51. The terminal device determines, according to the negotiation capability response message, the printing capability of the home gateway.

After receiving the negotiation capability response message, the terminal device determines the printing capability of the home gateway according to the first parameter value carried in the negotiation capability response message. The first parameter value can directly use the current remaining capacity of the home gateway, or the current remaining capacity * the capacity after the configuration factor, which is usually a value, such as a capacity of 1M or 200k.

51 05. The terminal device divides the service content in the print request into at least one print file segment according to the printing capability of the home gateway.

Specifically, the terminal device first encodes the service content in the print request by page, and acquires data and data size of the single page; and then connects the encoded service content according to the page, and accumulates the data in the connected page. The size, the connected data is combined into at least one print file segment, and the data size of each of the print file segments does not exceed the data capacity corresponding to the first parameter value of the print capability of the home gateway.

Optionally, the data size of the print file segment is sequentially increased according to the order of the print file segments. Under the premise that the data size of the print file segment does not exceed the data capacity corresponding to the first parameter value, the data size of the print file segment is sequentially increased, the print file segment that is printed first is the smallest, and the subsequent print file segment is gradually increased. The printing speed can be further increased. The larger the print file segment, the less the entire print file is transferred, which can reduce the transfer time of the entire print file (that is, the total time of printing). However, the smaller the print file segment is, the smaller the time required to transmit only the print file segment, the earlier the print file segment print time can be started, and the load of the home gateway can be reduced. Therefore, it is possible to shorten the total print time by appropriately adjusting the data size of the print file segment.

51 06. The terminal device sends the print file segment to the home gateway for printing. - As shown in Figure 3, S106 may specifically include the following steps:

S1 061. The terminal device determines whether the number of the print file segments of the service content in the print request exceeds one. If yes, the process proceeds to S1 062, otherwise, the process proceeds to S 1063.

51 062. The terminal device sends the print file segments one by one to the home gateway for printing. Specifically, the terminal device sends one of the print file segments to the home gateway for printing. After receiving the print file segment, the home gateway can print according to the existing smb process: Open File -> Write File -> Close -> wr i te -> c lose ).

When the print file segment is printed, the terminal device sends the negotiation capability request message to the home gateway again, and receives the negotiation capability response message returned by the home gateway again, and performs the next negotiation printing, according to the The printing capability of the home gateway sends the next print file segment to the home gateway for printing, that is, S102 to S106 in FIG. 1 are repeatedly executed, and so on, until the entire print service content is printed.

51 063. The terminal device sends the print file segment to the home gateway for printing, and ends printing.

After receiving the print file segment, the home gateway can print according to the existing smb process. After the home gateway prints the print file segment, the print is finished.

Optionally, the negotiation capability response message received in S103 further carries a second parameter value, which is a Data field, reflecting a working state of the printer connected to the home gateway. Then, S103 further includes: determining an operating state of the printer according to the second parameter value. If the printer is in an idle state (STATUS_IDLE), dividing the service content in the print request into at least one print file segment according to the printing capability of the home gateway; if the printer is in a working state (STATUS-WORKING) If the printer is in the full-load working state ( STATUS_DI SK_FULL ) and the data capacity corresponding to the first parameter value is zero, indicating that the server space of the home gateway is insufficient, the printing is canceled and the resources are released. After the data of the single page and the size of the data are obtained in S105, the method may further include: when the data of the single page is large, corresponding to the first parameter value of the printing capability of the home gateway. In the data capacity, the working status of the printer is determined according to the second parameter value in the negotiation capability response message. If the printer is in the idle state (STATUS_IDLE), the printing is canceled, and the resource is released; if the printer is in the working state (STATUS_WORKING) And entering the waiting delay state, and sending the negotiation capability request message to the home gateway again when the preset first waiting delay ends. The first waiting delay can be configured according to the network conditions, or can be configured by the user, for example, using 5 Oms * entry times.

Optionally, before the resending the negotiation capability request message to the home gateway, the method further includes:

Determining whether the time distance of the last time the negotiation capability request message is sent to the home gateway exceeds a preset second waiting delay, and if yes, sending the negotiation capability request message again; otherwise, entering the waiting delay state . The second waiting delay is to provide a certain processing time to the server of the home gateway. The SAMBA server needs processing time to interact with the printer and send the print file to the printer. Therefore, when the next negotiation is performed, a certain waiting delay algorithm is added. For example, use: Print the data size of the file segment X (multiplied by) a certain delay.

Optionally, after the receiving the negotiation capability response message returned by the home gateway, the method further includes:

FIG. 4 is a flowchart of a home sharing printing method on the home gateway side according to the embodiment. As shown in FIG. 4, the home sharing printing method includes:

S20: When receiving the negotiation capability request message sent by the terminal device, the home gateway constructs the negotiation. — — Capability response message.

The negotiation capability response message carries a first parameter value reflecting the printing capability of the home gateway, which is usually a Count field. The S201 specifically includes: when receiving the negotiation capability request message sent by the terminal device, the home gateway determines whether the print capability request message is limited in size, and if yes, statistics the remaining data capacity of the home gateway, and the The remaining data capacity is used as the first parameter value. Otherwise, the first parameter value is set to a preset first identifier, and the first identifier may be a preset value such as 0 or FFFF.

If the F id field in the negotiation capability request packet sent by the terminal device is empty or less than or equal to 0, the remaining capacity in the default file transmission storage path is counted, and the remaining capacity in the statistics is filled in the Count field.

If the Fid field in the negotiation capability request packet sent by the terminal device is greater than 0, the specified file transmission storage path exists, and the negotiation capability request packet has a restriction size. Accordingly, the home gateway statistics the specified Fid field correspondingly. The remaining data capacity in the file transfer storage path, and the remaining capacity counted as the first parameter value is filled in the Count field. If there is no remaining capacity, set the Count field to 0.

Of course, in order to protect resources, the Count field in the Negotiation Capability Reply message can also be the current remaining capacity * configuration factor, which is configured by the user, such as 50%.

Optionally, the negotiation capability response message further carries a second parameter value, which is a Sta tus field, that reflects a working state of the printer connected to the home gateway. After the remaining data capacity is used as the first parameter value, the method further includes:

When the remaining data capacity is not zero, it is determined whether there is a file being printed, and if so, the second parameter value is set to the identifier of the working state, that is, STATUS-WORKING; otherwise the second The parameter value is set to the identifier in the idle state, that is, STATUS_IDLE; when the remaining data capacity is zero, the server space of the home gateway is insufficient, and the second parameter value is set. — — Set to the ID at full load, ie STATUS_DI SK_FULL.

The first parameter value and the second parameter value are fed back to the terminal device by using the negotiation capability response message. S202. Receive a print file segment that is sent by the terminal device according to the printing capability of the home gateway, and divide the service content in the print request into at least one print file segment, and control the printer to print the received print file segment.

After receiving the first print file segment, the home gateway can print according to the existing smb process: open file -> write file -> close file (open -> wr i te -> c lose ). When receiving the print file segment, the server of the home gateway is stored in the corresponding file transfer storage path. After the completion of the receiving, the print file segment is sent to the printer, and the task is cleared. Further, S201 to S202 are repeated to print the next print file segment.

The home sharing printing method provided by the embodiment of the invention can solve the problem that the network print sharing device such as the home gateway has limited memory, supports large file printing, reduces the resource occupation of the printing sharing device, shortens the printing time, and avoids abnormality of the gateway device. .

The above is a detailed description of the home sharing printing method provided by the present invention, and the home sharing printing apparatus provided by the present invention will be described in detail below.

Embodiment 2

FIG. 5 is a schematic structural diagram of a terminal device according to the embodiment. As shown in FIG. 5, the terminal device of the present invention includes: a transceiver module 401 and a processing module 402.

The transceiver module 401 is configured to receive a print request, and when receiving the print request, send a negotiation capability request message to the home gateway, and receive a negotiation capability response message returned by the home gateway.

When the user has a file (document or picture, etc.) that needs to be printed, a print request is initiated by the terminal device (ie, the client). Upon receiving the print request, the transceiver module 401 of the terminal device sends a negotiation capability request message to the home gateway.

The negotiation capability request message is used for the transmission storage capability of the server that the terminal device requests the home gateway. — The negotiation capability request message may include: information of a plurality of fields such as a file or a path Fid that processes the request, a requested information level, and the like. The file or path Fid field for processing the request is a path for identifying the negotiation requested by the terminal device, so as to extend the storage path of the print file determined by the client. The Fid field is empty by default, and can also be the last negotiation capability, or the print file storage path specified by the user. When the Fid field is the default empty field, the negotiation capability request message can be considered as having no limit size. The requested information level is a priority level used to identify the request sent by the terminal device.

The Negotiation Capability Reply message is used by the home gateway to reply to the print capability of the server. The Negotiation Capability Reply message carries a first parameter value reflecting the printing capability of the home gateway.第一 The first parameter is used to identify the printing capability of the home gateway, and after receiving the negotiation capability request message, the home gateway determines its own remaining data capacity (ie, printing capability), and then uses the remaining data capacity as a reflection printing capability. The first parameter value, usually the Count field, is fed back to the terminal device through the negotiation capability response message.

The processing module 402 is configured to determine, according to the negotiation capability response message received by the transceiver module 401, the printing capability of the home gateway, and according to the printing capability of the home gateway, the print request received by the transceiver module 401 The business content is divided into at least one print file segment, and one of the print file segments is sequentially sent to the home gateway for printing by the transceiver module 401.

After receiving the negotiation capability response message, the processing module 402 determines the printing capability of the home gateway according to the first parameter value carried in the negotiation capability response message. The first parameter value can directly use the current remaining capacity of the home gateway, or the capacity of the current remaining capacity * configuration factor, which is usually a value, such as a capacity of 1M or 200k.

After determining the printing capability of the home gateway, the processing module 402 is configured to encode the service content in the print request received by the transceiver module 401 by a page, and obtain a single page of data and data size; and, the encoding After the business content is connected by page, accumulate the size of the data in the connected page, will - the connected data is combined into at least one print file segment, and the size of the data of each of the print file segments does not exceed the data capacity corresponding to the first parameter value of the print capability of the home gateway.

Optionally, the data size of the print file segment divided by the processing module 402 is sequentially increased according to the order of the print file segments. Under the premise that the data size of the print file segment does not exceed the data capacity corresponding to the first parameter value, the data size of the print file segment is sequentially increased, the print file segment that is printed first is the smallest, and the subsequent print file segment is gradually increased. The printing speed can be further increased. The larger the print file segment, the less the entire print file is transferred, which reduces the transfer time of the entire print file (that is, the total print time). When the number of print file segments is small, the smaller the time required to transmit only the print file segment, the time for printing the print file segment can be started in advance, and the load of the home gateway is reduced. Therefore, it is possible to shorten the total print time by appropriately adjusting the data size of the print file segment.

The processing module 402 sends the print file segment to the home gateway through the transceiver module 401 for printing.

Specifically, the processing module 402 first determines whether the number of the print file segments of the service content in the print request exceeds one, and if yes, sends the print file segments one by one to the home gateway for printing; otherwise The print file segment is sent to the home gateway for printing, and the printing is ended.

The processing module 402 is configured to send the print file segments one by one to the home gateway for printing, and specifically includes: sending a print file segment to the home gateway for printing. After receiving the first print file segment, the home gateway can print according to the existing smb process: open file -> write file -> close file (open -> wr i te -> c los e ) . When the print file segment is printed, the processing module 402 sends the negotiation capability request message to the home gateway through the transceiver module 401, and receives the negotiation capability response message returned by the home gateway again, and performs the next negotiation printing. And sending the next print file segment to the home gateway for printing according to the printing capability of the home gateway, and so on, until the entire print service content is printed. Optionally, the negotiation capability response message received by the transceiver module 401 further carries a second parameter value, which is a Status field, reflecting a working state of the printer connected to the home gateway. The processing module 402 is further configured to determine an operating state of the printer according to the second parameter value. If the printer is in an idle state (STATUS_IDLE), dividing the service content in the print request into at least one print file segment according to the printing capability of the home gateway; if the printer is in a working state (STATUS-WORKING) And enter the waiting delay state; if the printer is in the full load working state (STATUS_DI SK_FULL ) and the data capacity corresponding to the first parameter value is zero, the printing is canceled, and the resource is released.

Optionally, after the obtaining the data and data size of the single page, the processing module 402 is further configured to: when the data size of the single page exceeds the data capacity corresponding to the first parameter value of the printing capability of the home gateway, Determining the working state of the printer according to the second parameter value in the negotiation capability response message, canceling printing if the printer is in an idle state (STATUS_IDLE); if the printer is in a working state (STATUS-WORK ING), And entering the waiting delay state, and sending the negotiation capability request message to the home gateway again when the preset first waiting delay ends. The first waiting delay can be configured according to the network conditions, or can be configured by the user, for example, using 50ms * number of entries.

Optionally, before the sending, by the sending module 401, the processing capability request message to the home gateway, the processing module 402 is further configured to determine whether the time distance of sending the negotiation capability request message to the home gateway is exceeded. a preset second waiting delay. If yes, the negotiation capability request message is sent again through the transceiver module; otherwise, the waiting delay state is entered. The second waiting delay is to provide a certain processing time to the server of the home gateway. The SAMBA server needs processing time to interact with the printer and send the print file to the printer. Therefore, when the next negotiation is performed, a certain waiting delay algorithm is added. For example, use: Print the data size of the file segment X (multiplied by) a certain delay. After the processing module 402 receives the negotiation capability response message returned by the home gateway, the processing module 402 is further configured to re-determine the printing capability of the home gateway according to the re-received negotiation capability response message. When the printing capability of the home gateway changes, the print file segment of the business content in the print request is adjusted.

FIG. 6 is a schematic structural diagram of a home gateway of a printing device according to the embodiment. As shown in FIG. 6, the home gateway of the present invention includes: a transceiver 501 and a processor 502.

The transceiver 501 is configured to receive a negotiation capability request message sent by the terminal device.

The processor 502 is configured to construct a negotiation capability response message when the transceiver 501 receives the print capability request message.

The negotiation capability response message carries a first parameter value reflecting the printing capability of the home gateway, which is usually a Count field.

The processor 502 is specifically configured to: when the transceiver 501 receives the negotiation capability request message, determine whether the print capability request message is limited in size, and if yes, count the remaining data capacity of the home gateway, and The remaining data capacity is used as the first parameter value. Otherwise, the first parameter value is set to a preset first identifier, and the first identifier may be a preset value such as 0 or FFFF.

If the F id field in the negotiation capability request packet sent by the terminal device is empty or less than or equal to 0, the processor 502 counts the remaining capacity in the default file transmission storage path, and fills the remaining capacity in the Count field.

If the F id field in the negotiation capability request packet sent by the terminal device is greater than 0, the specified file transmission storage path exists, and the negotiation capability request packet has a restricted size. Accordingly, the processor 502 collects the specified F. The remaining data capacity in the file transfer storage path corresponding to the id field, and the remaining capacity as the first parameter value is filled in the Count field. If there is no remaining capacity, set the Count field to 0.

Of course, in order to achieve the purpose of protecting resources, the Count field in the negotiation capability response message may also be — — The current remaining capacity* configuration factor, which is configured by the user, such as 50%.

The transceiver 501 is further configured to receive a print file segment that is sent by the terminal device after the service content in the print request is divided into at least one print file segment according to the printing capability in the negotiation capability response message.

The processor 502 is further configured to control the printer to print the received segment of the print file after the transceiver 501 receives the segment of the print file.

After receiving the first print file segment, the transceiver 501 can follow the existing smb process: open the file -> write file -> close the file (open -> wr i te -> c lose ) The process prints. When the transceiver 501 receives the print file segment, the processor 502 stores the corresponding file transfer storage path. After the transceiver 501 receives the completion, the processor 502 sends the print file segment to the printer by using the transceiver 501, and clears the task. By analogy, the next print file segment is printed.

Optionally, the negotiation capability response message constructed by the processor 502 further carries a second parameter value, which is a Data field, reflecting a working state of the printer connected to the home gateway.

After the remaining data capacity is used as the first parameter value, the processor 502 is further configured to: when the remaining data capacity is not zero, determine whether there is a file being printed, and if so, the first The second parameter value is set to the identifier of the working state, that is, STATUS-WORKING; otherwise, the second parameter value is set to the identifier of the idle state, that is, STATUS_IDLE; and, when the remaining data capacity is zero , indicating that the server space of the home gateway is insufficient, and setting the second parameter value to the identifier of the full-load working state, that is, STATUS_DI SK_FULL.

The processor 502 uses the transceiver 501 to feed back the first parameter value and the second parameter value to the terminal device through the negotiation capability response message.

The home sharing printing method and device provided by the invention can solve the problem that the network print sharing device such as the home gateway has limited memory, supports large file printing, reduces the resource occupation of the printing sharing device, shortens the printing time, and avoids abnormality of the gateway device. . The skilled person should further realize that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate the hardware and The interchangeability of the software has been generally described in terms of the composition and steps of the examples in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. Software modules can be placed in random access memory

(RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage known in the art. In the medium.

The embodiments, the technical solutions, and the beneficial effects of the present invention are further described in detail. It is to be understood that the foregoing description is only exemplary embodiments of the present invention and is not intended to limit the present invention. The scope of the protection, any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Rights request

1. A home sharing printing method, characterized in that the method includes:

When receiving the print request, the terminal device sends a negotiation capability request message to the home gateway; receives the negotiation capability response message returned by the home gateway, and determines the printing capability of the home gateway based on the negotiation capability response message. ;

According to the printing capability of the home gateway, the service content in the print request is divided into at least one print file segment, and the print file segment is sent to the home gateway for printing.

2. The method according to claim 1, wherein the negotiation capability response message carries a first parameter value reflecting the printing capability of the home gateway;

Determining the printing capability of the home gateway based on the negotiation capability response message specifically includes: determining the printing capability of the home gateway based on the first parameter value in the negotiation capability response message.

3. The method according to claim 1, characterized in that: dividing the service content in the print request into at least one print file segment according to the printing capability of the home gateway, specifically including: dividing the print request into The business content in is coded by page, and the data and data size of a single page are obtained; the coded business content is connected by page, the data size in the connected pages is accumulated, and the connected data are combined into a print file segments, and the data size of each print file segment does not exceed the data capacity corresponding to the first parameter value of the printing capability of the home gateway.

4. The method according to claim 3, wherein the negotiation capability response message also carries a second parameter value that reflects the working status of the printer connected to the home gateway;

Determining the printing capability of the home gateway based on the negotiation capability response message further includes: determining the working status of the printer based on the second parameter value;

If the printer is in an idle state, the printer is configured according to the printing capability of the home gateway. The business content in the print request is divided into at least one print file segment;

If the printer is in working state, it enters the waiting delay state;

If the printer is working at full capacity and the data capacity corresponding to the first parameter value is zero, printing is canceled.

5. The method according to claim 4, characterized in that, after obtaining the data and data size of a single page, it further includes:

When the data size of the single page exceeds the data capacity corresponding to the first parameter value of the printing capability of the home gateway, determine the working status of the printer according to the second parameter value in the negotiation capability response message;

If the printer is idle, cancel printing;

If the printer is in the working state, it enters the waiting delay state, and when the preset first waiting delay ends, the negotiation capability request message is sent to the home gateway again.

6. The method according to claim 3, characterized in that the data size of the print file segments increases sequentially according to the order of the print file segments.

7. The method according to claim 1, wherein sending the print file segment to the home gateway for printing specifically includes:

Determine whether the number of the print file segments of the service content in the print request exceeds one. If so, send the print file segments one by one to the home gateway for printing; if not, send the print file segments The segments are sent to the home gateway for printing.

8. The method according to claim 7, wherein said sending the print file segments one by one to the home gateway for printing specifically includes:

Send one of the print file segments to the home gateway for printing;

When the printing of the print file segment is completed, the negotiation capability request message is sent to the home gateway again, and the negotiation capability response message returned by the home gateway is received again, and the next printing is performed. Negotiated printing of file segments.

9. The method according to claim 8, characterized in that, before sending the negotiation capability request message to the home gateway again, it further includes:

Determine whether the time distance between the last time the negotiation capability request message was sent to the home gateway exceeds the preset second waiting delay;

If so, send the negotiation capability request message again;

Otherwise, enter the waiting delay state.

10. The method according to claim 8, characterized in that, after receiving the negotiation capability response message returned by the home gateway again, it further includes:

According to the re-received negotiation capability response message, the printing capability of the home gateway is re-determined, and when the printing capability of the home gateway changes, the printing file segment of the service content in the printing request is adjusted.

11. A home sharing printing method, characterized in that the method includes:

When receiving the negotiation capability request message sent by the terminal device, the home gateway constructs a negotiation capability response message, and the negotiation capability response message carries a first parameter value that reflects the printing capability of the home gateway;

Receive the print file segment sent by the terminal device after dividing the service content in the print request into at least one print file segment according to the printing capability of the home gateway, and control the printer to print the received print file segment.

12. The method according to claim 11, characterized in that, when receiving the negotiation capability request message sent by the terminal device, the home gateway constructs a negotiation capability response message, specifically including: when receiving the negotiation capability request message sent by the terminal device When printing a capability request message, the home gateway determines whether the size of the printing capability request message is limited. If so, counts the remaining data capacity of the home gateway and uses the remaining data capacity as the first parameter value. , otherwise, set the first parameter value to Default first identifier.

13. The method according to claim 12, wherein the negotiation capability response message also carries a second parameter value that reflects the working status of the printer connected to the home gateway;

After using the remaining data capacity as the first parameter value, the method further includes:

When the remaining data capacity is not zero, determine whether there is a file being printed, and if so, set the second parameter value to the identification of the working state; otherwise, set the second parameter value to the idle state Identification of status;

When the remaining data capacity is zero, the second parameter value is set to an indicator of a full-load working state.

14. A terminal device, characterized in that the terminal device includes:

A processing module, configured to determine the printing capability of the home gateway according to the negotiation capability response message received by the transceiver module, and print the printing capability received by the transceiver module according to the printing capability of the home gateway. The service content in the request is divided into at least one print file segment, and the print file segment is sent to the home gateway for printing through the transceiver module.

15. The terminal device according to claim 14, wherein the negotiation capability response message carries a first parameter value that reflects the printing capability of the home gateway;

The processing module is specifically configured to determine the printing capability of the home gateway according to the first parameter value in the negotiation capability response message.

16. The terminal device according to claim 14, wherein the processing module is specifically configured to encode the business content in the print request received by the transceiver module on a page basis, and obtain the data of a single page and Data size; and, connect the encoded business content by page, accumulate the data size in the connected pages, combine the connected data into a print file segment, and make each of the The data size of the print file segment does not exceed the data capacity corresponding to the first parameter value of the printing capability of the home gateway.

17. The terminal device according to claim 16, wherein the negotiation capability response message received by the transceiver module also carries a second parameter value reflecting the working status of the printer connected to the home gateway. ;

The processing module is also configured to determine the working status of the printer according to the second parameter value; if the printer is in an idle state, divide the service content in the print request into At least one print file segment;

If the printer is in working state, it enters the waiting delay state;

18. The terminal device according to claim 17, wherein the processing module is further configured to: when the data size of the single page exceeds the data capacity corresponding to the first parameter value of the printing capability of the home gateway, The working status of the printer is determined according to the second parameter value in the negotiation capability response message. If the printer is in the idle state, printing is canceled; if the printer is in the working status, the printer enters the waiting delay state, and in the preset state When the first waiting delay ends, the negotiation capability request message is sent to the home gateway again.

19. The terminal device according to claim 16, wherein the data size of the print file segments divided by the processing module increases sequentially according to the order of the print file segments.

20. The terminal device according to claim 15, wherein the processing module is configured to send the print file segment to the home gateway for printing, specifically including determining the business content in the print request. Whether the number of the print file segments exceeds one, if so, send the print file segments one by one to the home gateway for printing; if not, send the print file segments to the home gateway for printing .

21. The terminal device according to claim 20, characterized in that: the processing module is configured to send the print file segments one by one to the home gateway for printing, specifically including: sending a segment of the print file through the transceiver module. Send the print file segment to the home gateway for printing; when the print file segment is printed, send a negotiation capability request message to the home gateway again through the transceiver module, and receive the negotiation returned by the home gateway again. The capability response message is used to negotiate and print the next print file segment.

22. The terminal device according to claim 21, characterized in that, before sending a negotiation capability request message to the home gateway through the transceiver module again, the processing module is also used to determine the last time the negotiation was sent. Whether the time distance between the capability request message and the home gateway exceeds the preset second waiting delay, if so, send the negotiation capability request message through the transceiver module again; otherwise, enter the waiting delay state.

23. The terminal device according to claim 21, characterized in that, after receiving the negotiation capability response message returned by the home gateway again, the processing module is further configured to respond according to the negotiation capability response message received again. , re-determine the printing capability of the home gateway, and adjust the print file segment of the service content in the print request when the printing capability of the home gateway changes.

24. A home gateway for a printing device, characterized in that the home gateway includes: a transceiver, configured to receive a negotiation capability request message sent by a terminal device;

A processor configured to construct a negotiation capability response message when the transceiver receives the printing capability request message, where the negotiation capability response message carries a first parameter reflecting the printing capability of the home gateway. value;

The transceiver is also configured to receive a print file segment sent by the terminal device after dividing the business content in the print request into at least one print file segment according to the print capability in the negotiation capability response message;

The processor is also configured to control the printer after the transceiver receives the print file segment. Print the received print file segment.

25. The home gateway according to claim 24, wherein the processor is specifically configured to determine whether the printing capability request message has a size limit when the transceiver receives the negotiation capability request message. , if so, count the remaining data capacity of the home gateway, and use the remaining data capacity as the first parameter value; otherwise, set the first parameter value as the preset first identifier.

26. The home gateway according to claim 25, wherein the negotiation capability response message constructed by the processor also carries a second parameter value that reflects the working status of the printer connected to the home gateway. ;

After using the remaining data capacity as the first parameter value, the processor is also configured to determine whether there is a file being printed when the remaining data capacity is not zero, and if so, set all the files to be printed. The second parameter value is set to an identifier in the working state; otherwise, the second parameter value is set to an identifier in the idle state; and, when the remaining data capacity is zero, the second parameter value is set to Indicates that it is working at full capacity.