CN106302262A - A kind of intelligent restaurant service robot wireless communications method based on soft switch - Google Patents

Abstract

The invention discloses a softswitch-based wireless communication method for an intelligent restaurant service robot. Wherein, the method includes management server and restaurant service robot, and wifi network. The wireless data transmission between the management server and the restaurant service robot is based on the SIP communication protocol. The wireless data transmission steps between the management server and the restaurant service robot are as follows: (1) The management server generates work orders or restaurant data; (2) Encapsulates the data to be transmitted according to the MIME protocol; Analysis; (4) Establish a connection to transmit data to the restaurant service robot; (5) After the restaurant service robot receives the data, the Gmime library processes the data and parses out the source data. The invention has the communication function realized by software, the platform is simple to build, has strong practicability and reliability, can effectively reduce system cost, and improve the effect of system operation efficiency.

Description

A wireless communication method for intelligent restaurant service robot based on softswitch

technical field

The invention belongs to the technical field of restaurant service robots, and in particular relates to a wireless communication method for an intelligent restaurant service robot based on a soft switch.

Background technique

With the rapid development of economy and society, people often go to restaurants for convenience, entertainment or enjoyment of life, and their requirements for restaurant environment and service quality are getting higher and higher. After the first domestic robot restaurant appeared in Jinan in 2010, restaurant service robots also appeared in Guangzhou, Shenzhen, Beijing, Harbin, Shanghai and other places. In order to improve service quality and increase customer flow, the application of restaurant service robots is becoming more and more common. . Some of the current restaurant robots do not have wireless communication functions. The restaurant personnel directly set up the service task program for him on the input device of the robot, and the robot executes according to the set requirements. After the robot completes the service task, it returns to the initial work. position or wait for restaurant personnel to schedule the next work assignment. This kind of restaurant service robot without wireless communication function obviously has its limitations. Now, there are some restaurant service robots with wireless communication function. This kind of service robot proposes to realize communication based on hardware wireless communication module, but there is a defect that the communication mode is relatively simple, and the communication method is relatively single.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a soft-switch-based smart restaurant service with a communication function implemented by software, a platform that is simple to build, has strong practicability and reliability, can effectively reduce system costs, and improve system operating efficiency Robot wireless communication method.

In order to achieve the above object, the present invention provides a softswitch-based intelligent restaurant service robot wireless communication method, which includes a management server and a restaurant service robot, and a wifi network that is wirelessly connected to the management server and the restaurant service robot respectively; Wireless transmission of data between the management server and the restaurant service robot based on the SIP communication protocol;

The wireless data transmission steps between the management server and the restaurant service robot are as follows:

(1) The management server generates work orders or restaurant data;

(2) In order to improve communication security, the data to be transmitted is encapsulated according to the MIME (Multipurpose Internet Mail Extensions) protocol;

(3) After that, the Gmime library is used to encapsulate and analyze data MIME;

(4) Establish a connection and transmit data to the restaurant service robot;

(5) After receiving the data, the restaurant service robot uses the Gmime library to process the data and parse out the source data.

In some embodiments, the work instructions in the above wireless data transmission step (1) include food delivery, return, execution of actions, and voice playback; the work instructions are short message instructions; the short message is sent through The MESSAGE of SIP itself is transmitted; the restaurant data includes restaurant distribution, running path, and voice packets; the restaurant data is a long message instruction; the long message uses the message session transfer protocol MSRP after the session is established Make the transfer, and end the conversation when the transfer is complete.

In some embodiments, the MIME protocol is an Internet standard that can support email messages in multiple formats such as non-ASCII characters and binary format attachments;

In some implementations, the Gmime library is a free and open source MIME format parsing library developed in C and C++.

In some embodiments, the SIP protocol is realized by using two protocol stacks of Osip2 and eXosip; after initializing the Osip2 and eXosip libraries, the event monitoring thread is started; after that, a call is initiated to the service robot of the specified IP and port; a connection is established, and the transmission data; finally, end the connection.

The beneficial effect of the present invention is that the wireless communication between the management server and the restaurant service robot can be realized by using the communication mode of the soft switch, based on the SIP communication protocol, and by means of the widely used wifi network. The invention adopts C/S mode, the main communication function is realized by software, the platform is simple to build, has strong practicability and reliability, can effectively reduce system cost, and improve system operation efficiency. The invention solves the defects that the communication mode is relatively simple and the communication mode is relatively single in the prior art.

Description of drawings

Fig. 1 is the flow chart of short message transmission among the present invention;

Fig. 2 is a flow chart of long message transmission in the present invention.

detailed description

Below in conjunction with accompanying drawing, invention is described in further detail.

As shown in Figure 1-2, a wireless communication method for an intelligent restaurant service robot based on a soft switch includes a management server and a restaurant service robot, and a wifi network wirelessly connected to the management server and the restaurant service robot respectively. The wireless data transmission between the management server and the restaurant service robot is based on the SIP communication protocol. The wireless data transmission steps between the described management server and the restaurant service robot are as follows: (1) the management server generates work order or restaurant data; The transmitted data is encapsulated; (3) after that, the Gmime library is used to encapsulate and analyze the data MIME; (4) the connection is established, and the data is transmitted to the restaurant service robot; (5) after the restaurant service robot receives the data, the Gmime library is used to The data is processed and the source data is parsed. The SIP protocol is a signaling protocol used to realize real-time communication based on the Internet environment, and is used to generate, modify and terminate sessions between one or more participants. The SIP protocol supports five signaling functions: user location, negotiation of user communication capabilities, interaction of user wishes, session establishment, and session management. SIP messages are divided into two categories: request messages and response messages. The request message refers to the SIP message sent by the client to the server in order to activate a specific operation, including INVITE, ACK, BYE, CANCEL, OPTION, UPDATE messages; the response message refers to the SIP message that the server feeds back the processing result of the corresponding request to the client. Includes lxx, 2xx, 3xx, 4xx, 5xx, 6xx responses. The SIP network system includes two types of components, User Agent (UserAgent) and Network Server (Network Server), User Agent includes User Agent Client (UAC) and User Agent Server (UAS), and Network Server includes proxy server, location Functional entities such as server and redirection server. The work order in the above-mentioned data wireless transmission step (1) includes food delivery, return, execution action, and voice playback; the work order is a short message command; the short message is transmitted through the MESSAGE of SIP itself ; The restaurant data includes restaurant distribution, running path, and voice packets; the restaurant data is a long message instruction; after the session is established, the long message is transmitted using the message session transfer protocol MSRP, and after the transmission is completed End the conversation. The MIME protocol is an Internet standard that can support email messages in various formats such as non-ASCII characters and binary format attachments. The Gmime library is a free and open source MIME format parsing library developed in C and C++. The SIP protocol is implemented using two protocol stacks, Osip2 and eXosip; after initializing the Osip2 and eXosip libraries, start the event monitoring thread; after that, initiate a call to the service robot with the specified IP and port; establish a connection and transmit data; finally, end the connection . About Osip2 is a SIP protocol stack written in standard C according to RFC3261 (SIP) and RFC2327 (SDP) standards. It is a free protocol stack with open source code. The Osip2 protocol stack has a simple and compact structure. It does not provide high-level SIP session control APIs, but mainly provides some APIs for parsing SIP/SDP messages and state machines for transaction processing. The Osip2 protocol stack is mainly composed of a state machine module, a parser module and a tool module. eXosip is an extended protocol set of Osip2, which partially encapsulates the Osip2 protocol stack, making it easier to use. eXosip uses UDP sockets to realize the receiving/sending of the underlying SIP protocol, and calls Osip2's transaction processing functions in a regular round-robin manner. eXosip adds the analysis of call, dialog, registration, subscription and other processes, making it more practical. Osip2 combined with eXosip protocol stack is a good choice for implementing SIP protocol.

What have been described above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims (5)

1. a kind of wireless communication method of intelligent restaurant service robot based on softswitch, wherein, comprise management server and restaurant service robot, and in the wifi network that is connected with management server and restaurant service robot wirelessly respectively; Described management server and restaurant service Wireless data transmission between robots based on the SIP communication protocol; The wireless data transmission steps between the management server and the restaurant service robot are as follows: (1) The management server generates work orders or restaurant data; (2) In order to improve communication security, the data to be transmitted is encapsulated according to the MIME protocol; (3) After that, the Gmime library is used to encapsulate and analyze data MIME; (4) Establish a connection and transmit data to the restaurant service robot; (5) After receiving the data, the restaurant service robot uses the Gmime library to process the data and parse out the source data. 2. A wireless communication method for an intelligent restaurant service robot based on softswitch according to claim 1, characterized in that the work instructions in the above-mentioned wireless data transmission step (1) include food delivery, return to position, execution action, play voice; the work instruction is a short message command; the short message is transmitted through the MESSAGE of SIP itself; the restaurant data includes restaurant distribution, running path, voice packet; the restaurant data is a long Message instruction; after the session is established, the long message is transmitted using the message session transfer protocol MSRP, and the dialogue is ended after the transmission is completed. 3. a kind of intelligent restaurant service robot wireless communication method based on soft switch according to claim 2, it is characterized in that, described MIME agreement is an Internet standard, can support multiple formats such as non-ASCII characters, binary format annex email message. 4. a kind of intelligent restaurant service robot wireless communication method based on softswitch according to claim 1, is characterized in that, described Gmime storehouse is to adopt the free open source MIME format parsing storehouse of C and C++ development. 5. according to claim 1 or 2 or 3 or 4 described a kind of intelligent restaurant service robot wireless communication method based on softswitch, it is characterized in that, described SIP agreement is to adopt two protocol stacks of Osip2 and eXosip to realize; After initializing the Osip2 and eXosip libraries, start the event monitoring thread; after that, initiate a call to the service robot with the specified IP and port; establish a connection and transmit data; finally, end the connection.