CN1863052A - Remote-controlling system and method - Google Patents

Abstract

The present invention relates to a remote control system and method in the field of network communication technology. By introducing RCMC (Remote Control Management Center) and CGW (Control Gateway), the control terminal communicates with RCMC, RCMC communicates with CGW, and CGW communicates with controlled devices. Communication enables unified remote control and management of various types of controlled devices. The present invention supports simultaneous use of personal mobile communication devices, personal computers, and fixed telephones to implement remote control operations on controlled devices; the differences between various types of controlled devices are shielded through CGW, so adding different types of CGW can expand the system Capabilities and application scope, without directly affecting the system architecture and networking form.

Description

A remote control system and method

technical field

The invention relates to the technical field of network communication, in particular to a remote control system and method.

Background technique

Remote control technology enables people to perform control operations even when they are far away from the controlled device, so as to order the controlled device to perform the actions we require, which provides great convenience for our daily life and industrial control. For example, we can use remote control technology to turn on the air conditioner in advance on our way home; we can also know the operation status of our home security equipment in different places; we can also know and control deserts or forests thousands of miles away in the office in the sensor.

To achieve remote control, it is necessary to transmit control instructions and status information through a wired or wireless communication network. Generally, the user operates the control terminal to issue control commands, transmit the control commands through a wired or wireless communication network, and finally reach the controlled device. Return the execution result.

Commonly used technical solution one is shown in Figure 1. The specific controlled device is remotely controlled through special computer control software. The communication between the control terminal and the controlled device is generally through a wired communication network, such as the Internet, a local area network or a dedicated communication network. network carried out.

The control terminal needs to install control software. The control software is generally special software, which is generally installed on the control terminal computer to run. The special control software communicates with the controlled device through a specific protocol to achieve the purpose of remote control. It is required that both the control computer and the controlled device can be connected to the wired communication network to implement remote control, and only specific special equipment can be controlled. Therefore, this solution is not universal, not very convenient to use, and not strong in practicability.

The second commonly used technical solution is shown in Figure 2, using a wireless terminal to remotely control a specific controlled device through a wireless communication network, and the communication between the controlling terminal and the controlled device can be performed through a wireless network.

This remote control method is generally implemented for a specific type of equipment and is not universal. The controlled device is often an independent wireless communication device, and the price is relatively high.

Therefore, there is a need for a method that can realize unified management and remote control of various types of equipment.

Contents of the invention

In view of the existing problems in the above-mentioned prior art, the object of the present invention is to provide a remote control system and method, by introducing RCMC (Remote Control Management Center) and CGW (Control Gateway), so that the control terminal communicates with RCMC, and RCMC communicates with RCMC CGW communication, CGW communicates with controlled devices, realizing unified remote control and management of various types of controlled devices.

The purpose of the present invention is achieved through the following technical solutions:

The present invention provides a remote control system, which includes a control terminal and a controlled device, and is characterized in that it also includes: a remote control management center RCMC and a control gateway CGW;

The RCMC is connected with the control terminal and the CGW, and is used to save system data information, and perform two-way communication with the control terminal and the CGW;

The CGW is connected to the controlled device, and is used to convert the control command of the RCMC into a command that the controlled device can recognize and forward it to the controlled device, and return the execution result of the controlled device to the RCMC.

The CGW is provided with a memory for storing dynamic equipment state information, recording the state information of the controlled device controlled and managed by the CGW in the current operating state of the system; the RCMC is provided with a memory for storing the CGW The connection state information of the device, and/or save the device state information and synchronize with the device state information saved in the CGW.

The system uses a tree row management structure to describe and manage various types of controlled devices, and provides a unified interface for remote control operations.

The system also includes a device description template, which is used to solve the problem that RCMC needs to manage different types of CGWs and controlled devices, and shields the differences in remote control operations of different types of controlled devices.

The device description template is used to describe the node name, node ID, and node operation attributes of each tree node.

The operation attribute of the node is used to describe the type of remote control operation that can be performed on the node, including command name, command ID, number of command parameters, and parameter type.

The device description template is static description information. Different types of CGWs follow a unified template format with different template contents. Each CGW stores its own device description template, and RCMC stores all CGW-type device description templates.

The present invention also provides a remote control method, including:

A. The control terminal sends remote control commands;

B. The RCMC forwards the remote control command to the CGW, and then the CGW forwards it to the controlled device;

C. The controlled device returns the execution result to the controlling terminal.

Described step A also comprises:

A1. Before sending the remote control command, the CGW registers with the RCMC, and the RCMC verifies the validity of the CGW.

The step A1 specifically includes:

A11. The CGW sends a registration request to the RCMC, and the RCMC verifies the validity of the CGW and returns a registration response;

A12. The RCMC negotiates parameters with the CGW, and the registration is completed.

Said step A1 also includes:

A13. The RCMC requests the CGW to obtain the static device description template and/or device state information.

The device description template can be statically configured, or dynamically reported by the CGW.

Said step A1 also includes:

A14, time synchronization between RCMC and CGW.

Described step A also comprises:

A2. The control terminal sends a remote control connection request to RCMC;

A3. The RCMC verifies the legitimacy of the user on the controlling terminal, and returns a connection request response message.

Selecting the controlled node in the step A specifically includes: the controlling terminal selects a specific controlled node and a remote control command according to the device status information and/or device description template information returned by the RCMC.

The connection request response message includes:

reject the response, specify the reason for the rejection in said response message; or,

If the response is accepted, the response message includes the CGW list information that can be managed by the controlling terminal.

The method also includes:

D. Synchronize status information between RCMC and CGW periodically or in real time.

Described step D specifically comprises:

Periodic synchronization of time; and/or,

Periodic synchronization of device state information; and/or,

When the CGW detects a device state change, it notifies the RCMC in real time.

The method also includes:

E. The RCMC and the CGW regularly perform handshaking between devices.

It can be seen from the above-mentioned technical solutions provided by the present invention that the present invention supports the simultaneous use of personal mobile communication devices, personal computers, and fixed telephones to implement remote control operations on controlled devices; the CGW shields the differences between various types of controlled devices , so adding different types of CGW can expand the capability and application range of the system without directly affecting the system architecture and networking form;

The present invention realizes the unified control, management and maintenance of various types of controlled devices, can simultaneously solve the remote control problems in daily life in environments such as homes, cars, and offices, and can also meet various requirements in industrial application environments. A remote control requirement.

Description of drawings

Fig. 1 is a schematic diagram of remote control operation implemented through a wired communication network in the prior art;

Fig. 2 is a schematic diagram of implementing remote control operation through a wireless communication network in the prior art;

Fig. 3 is a system architecture diagram of the present invention;

Fig. 4 is a sample diagram of the system tree management structure of the present invention;

Fig. 5 is a business logic diagram of the CGW registration process of the method according to the present invention;

Fig. 6 is a business logic diagram of the remote control operation process of the method of the present invention;

Fig. 7 is a logic diagram of the information synchronization service between the RCMC and the CGW according to the method of the present invention.

Detailed ways

The core idea of the present invention is to provide a remote control system and method. The control terminal communicates with the RCMC (Remote Control Management Center) through a wireless or wired communication network, and the RCMC communicates with the CGW (Control Gateway) through a wireless or wired communication network. The CGW It communicates with the controlled device through short-distance wired or wireless communication technology, and realizes unified control, management and maintenance operations for various types of controlled devices.

The present invention provides a remote control system, the system architecture is shown in Figure 3, and the functional entities involved in the system of the present invention include:

Control terminal: It is used to complete the human-computer interaction operation in the remote control process. It can display the remote control operation interface, and the user can send remote control commands to the controlled device through it, and obtain information such as the operation result and the status of the controlled device;

RCMC: Save relevant data information of users, CGW and controlled devices, responsible for user management, user legality verification, CGW legality verification, CGW status management, management of controlled devices, etc., and responsible for communication with control terminals and CGW Two-way communication, forward the user's operation commands to the CGW in a way that the CGW can understand, and at the same time forward the information sent by the CGW to the control terminal in a way that the control terminal can understand;

Since the control methods, control instructions, and control parameters of various controlled devices may be different, RCMC can generate remote control business logic independent of the controlled device based on the static device description template and dynamic device status information, and can According to these specific control logics, the user's remote control operations are converted into control commands that the CGW and the controlled device can understand.

CGW: Responsible for forwarding the control commands of RCMC to the controlled device in a way that the controlled device can understand, and forwarding the execution results or other information of the controlled device to RCMC;

According to the characteristics of the controlled device, CGW can also directly execute the control command and return the execution result to RCMC;

CGW can monitor the state changes of the controlled devices in real time, and report such state changes to RCMC as needed;

RCMC and CGW realize unified control and management of different types of controlled devices under CGW by defining standard communication protocols;

Controlled device: Execute the control command issued by CGW, and return the execution result or other state information to CGW; the controlled device can report this state change to CGW when its own state changes according to needs;

The communication between the control terminal and RCMC adopts different standard communication protocols according to the characteristics of the terminal. If the control terminal is a mobile phone, the communication protocol can use SMS (Short Message Service), WAP (Wireless Application Protocol), HTTP ( Hypertext Transfer Protocol), USSD (Unstructured Supplementary Service Data), etc.; if the control terminal is a personal computer, the communication protocol with RCMC can be TCP (Transmission Control Protocol)/UDP (User Datagram Protocol)/IP (Internet Protocol), HTTP, etc.; if the control terminal is a fixed telephone, the communication protocol with RCMC is the communication protocol of the public switched telephone network itself;

The communication protocol between RCMC and CGW, if it is through the Internet, can be based on TCP/UDP/IP protocol, HTTP, etc.; if it is a public wireless communication network, it can be SMS, TCP/UDP/IP protocol, WAP, etc.;

The communication protocol between the CGW and the controlled device can be a short-distance wireless communication technology such as WLAN (Wireless Local Area Network), Bluetooth, and radio communication, or a short-distance wired communication technology such as Ethernet and serial port;

The wireless communication network can be GSM (Global System for Mobile Communications), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), WLAN (Wireless Local Area Network), satellite communication and other wireless communication network;

The wired communication network may be PSTN (Public Switched Telephone Network), Internet (Internet), LAN (Local Area Network) and other wired communication networks.

In order to provide a unified interface for the remote control operations of various types of equipment, the remote control system of the present invention adopts a tree management structure for the management of the controlled devices, as shown in Figure 4, which is based on the HCGW (home control gateway) as an example to illustrate the tree management structure diagram of security equipment and three-table equipment. In the specific realization and implementation process of the remote control system, the classification and classification levels of the controlled devices can be determined according to the actual situation;

As shown in Figure 4, CGW is strongly related to specific controlled devices, while RCMC is not directly related to specific controlled devices;

The system of the present invention uses a device description template to solve the problem that RCMC needs to adapt to different types of CGWs and controlled devices, so that RCMC only needs to pay attention to business logic and shield the differences of different controlled devices;

The device description template is based on the tree management structure diagram, and is used to describe information such as the node name, node ID, and node operation attributes of each tree node. The node operation attribute described therein mainly describes the list of remote control operation commands that can be implemented on the node, including: command name, command ID, number of command parameters, parameter types and other information; Remote control, it is also possible to implement the same remote control operation on a type of equipment or even all equipment at the same time;

The device description template is static description information. Different types of CGWs follow a unified template format but have different contents. Each CGW saves its own device description template, and RCMC stores all CGW-type device description templates; the device description template in RCMC It can be statically configured or dynamically reported by the CGW;

During the operation of the remote control system, a memory is set in the CGW to store dynamic equipment state information, which is used to record the state information of the controlled device controlled and managed by the CGW in the current operating state of the system; a memory is set in the RCMC to use To save the status information of the CGW, it will query the device status information to the specific CGW when needed, and at the same time, a copy of the device status information of the CGW can also be saved in the RCMC. When the status of the device in the CGW changes, it is necessary to notify the RCMC in real time or periodically Synchronously update the corresponding device status information.

The present invention also provides a remote control method, which realizes unified control, management and maintenance of various types of controlled devices, and the specific operations are as follows:

Before remote control is implemented, CGW needs to register with RCMC before it can access the remote control system. RCMC will verify the legitimacy of CGW based on certain strategies and methods to avoid illegal CGW access to the system. Figure 5 describes the CGW registration The basic business logic of the process, the registration process includes the following steps:

Step 1: CGW sends a registration request;

CGW initiates a registration request to RCMC when it is powered on, restarted, or disconnected. The request message contains: version number, CGW device identifier, and related information for identity verification. For security reasons, these information can also be passed through other independent The message process to carry;

Step 2: RCMC conducts a legality check on CGW, and only legal CGW registration requests can be accepted by RCMC;

Step 3: RCMC sends a registration response to CGW, indicating whether to accept or reject CGW's registration request, and the reasons for rejection;

Step 4: As an optional operation, RCMC can request to report static device description template information to CGW as needed, and RCMC can check the validity and legality of this, and CGW transmits the static device description template information to RCMC, and RCMC receives Send a response message to the CGW after the information, indicating whether the information is received and whether the content of the device description template is correct;

Step 5: CGW can interact with the controlled device as needed to obtain the status information of the controlled device in real time;

Step 6: As an optional operation, RCMC may request to report device status information to CGW as needed, CGW transmits the device status information to RCMC, and RCMC sends a response message to CGW after receiving the information, indicating whether to receive the information and Whether the content matches the device description template;

Step 7: As an optional operation, time synchronization can be performed between RCMC and CGW as required;

Step 8: Necessary parameter negotiation needs to be carried out between RCMC and CGW;

Step 9: After the above operations are completed, the RCMC notifies the CGW that the registration process is over.

After the CGW completes the registration and accesses the remote control system, the control terminal implements remote control operations, as shown in Figure 6. The process specifically includes:

Step 20: The control terminal initiates a remote control connection request to the RCMC, and the request message carries the version number, the user's identification and related information for identity verification;

Step 21: RCMC conducts necessary legality checks on users according to certain policies and methods;

Step 22: After the above-mentioned legality check is completed, the RCMC sends a response message to the controlling terminal, the response message includes rejecting or accepting the connection request, if the response message is rejection, the reason for the rejection is stated in the message; if the response message is acceptance, A list of CGWs and related information that can be managed by the controlling terminal need to be given;

Step 24: The user chooses to enter a specific CGW according to the CGW list and related information;

Step 24: If valid device status information is saved in RCMC, this process is unnecessary; if RCMC does not save valid device status information, it is necessary to obtain device status information from the designated CGW;

Step 25: RCMC returns part or all of the device status information and device description template information of the designated CGW to the controlling terminal in an appropriate manner;

Step 26: The controlling terminal selects a specific controlled node and a remote control command according to the device status information and device description template information described in a tree structure. If the user selects a leaf node, it is equivalent to selecting a specific device. If If the user selects an intermediate node, it is equivalent to selecting a type of equipment or even all equipment; the process of selecting a controlled node by the user can be completed by one or more interactions with RCMC as required, or it can be completed directly with step 27 at one time;

Step 27: The control terminal sends the specified remote control operation command to the RCMC for the selected controlled node;

Step 28: RCMC forwards the remote control command of the controlling terminal to CGW;

RCMC forwards the remote control command of the controlling terminal to CGW in a way that CGW can understand;

Step A29: CGW converts the remote control command into a way that the controlled device can understand and sends it to the controlled device. After the controlled device completes the specified operation, it returns the operation result to CGW; if the control operation logic of the controlled device is implemented in the CGW , then the CGW may directly execute the operation command without interacting with the controlled device; finally, the CGW returns the operation result to the RCMC;

Step 30: RCMC returns the execution result to the control terminal, and the remote control operation is completed.

During the operation of the remote control system of the present invention, RCMC and CGW will synchronize some necessary status information regularly or in real time, as shown in Figure 6, the basic information synchronization services between the RCMC and CGW include:

a) Periodic time synchronization between RCMC and CGW as required;

b) If valid device status information is saved in RCMC, batch synchronization needs to be performed regularly between RCMC and CGW;

c) Other state information, such as key information, authentication information, etc., can also be synchronized or updated regularly as needed;

d) Periodic handshaking is required between RCMC and CGW to ensure the validity of the connection;

e) CGW will exchange information with the controlled device as needed, and obtain the latest equipment status information in real time;

f) If the CGW finds that the device status changes, and valid device status information is saved in RCMC, it will notify RCMC to update the device status information in real time;

To sum up, the present invention realizes remote control and management of various types of controlled devices by introducing RCMC and CGW so that the controlling terminal communicates with RCMC, RCMC communicates with CGW, and CGW communicates with controlled devices.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (19)

1. A remote control system, including a control terminal and a controlled device, characterized in that it also includes: a remote control management center RCMC and a control gateway CGW; The RCMC is connected with the control terminal and the CGW, and is used to save system data information, and perform two-way communication with the control terminal and the CGW; The CGW is connected to the controlled device, and is used to convert the control command of the RCMC into a command that the controlled device can recognize and forward it to the controlled device, and return the execution result of the controlled device to the RCMC. 2. A remote control system according to claim 1, characterized in that the CGW is provided with a memory for storing dynamic equipment status information, and recording the information controlled and managed by the CGW in the current operating state of the system. The status information of the controlled device; the RCMC is provided with a memory for saving the connection status information of the CGW, and/or saving the device status information and synchronizing with the device status information saved in the CGW. 3. A remote control system according to claim 1, characterized in that the system adopts a tree row management structure to describe and manage various types of controlled devices, and provides a unified interface for remote control operations. 4. A remote control system according to claim 3, characterized in that the system also includes a device description template, which is used to solve the problem that RCMC needs to manage different types of CGW and controlled devices, and shield different types of controlled devices. The differences in the remote control operation of the remote control device. 5. The remote control system according to claim 4, wherein the device description template is used to describe the node name, node ID, and node operation attributes of each tree node. 6. A remote control system according to claim 5, wherein the operation attribute of the node is used to describe the type of remote control operation that can be implemented on the node, including command name, command ID, command parameter Number, parameter type. 7. A remote control system according to claim 4 or 5, wherein the device description template is static description information, different types of CGWs follow a unified template format, and the template content is different, and each CGW saves Its own device description template, all CGW-type device description templates are stored in RCMC. 8. A remote control method, characterized in that it comprises: A. The control terminal sends remote control commands; B. The RCMC forwards the remote control command to the CGW, and then the CGW forwards it to the controlled device; C. The controlled device returns the execution result to the controlling terminal. 9. A remote control method according to claim 8, characterized in that said step A further comprises: A1. Before sending the remote control command, the CGW registers with the RCMC, and the RCMC verifies the validity of the CGW. 10. A remote control method according to claim 9, characterized in that the step A1 specifically comprises: A11. The CGW sends a registration request to the RCMC, and the RCMC verifies the validity of the CGW and returns a registration response; A12. The RCMC negotiates parameters with the CGW, and the registration is completed. 11. A remote control method according to claim 9, characterized in that said step A1 further comprises: A13. The RCMC requests the CGW to obtain the static device description template and/or device state information. 12. The remote control method according to claim 11, wherein the device description template can be statically configured or dynamically reported by the CGW. 13. A remote control method according to claim 9, characterized in that said step A1 further comprises: A14, time synchronization between RCMC and CGW. 14. A remote control method according to any one of claims 8 to 11, characterized in that said step A further comprises: A2. The control terminal sends a remote control connection request to RCMC; A3. The RCMC verifies the legitimacy of the user on the controlling terminal, and returns a connection request response message. 15. A remote control method according to claim 14, characterized in that said step A specifically includes: the controlling terminal selects a specific controlled node and Remote control commands. 16. A remote control method according to claim 14, wherein the connection request response message includes: reject the response, specify the reason for the rejection in said response message; or, If the response is accepted, the response message includes the CGW list information that can be managed by the controlling terminal. 17. A remote control method according to claim 8, further comprising: D. Synchronize status information between RCMC and CGW periodically or in real time. 18. A remote control method according to claim 17, characterized in that said step D specifically comprises: Periodic synchronization of time; and/or, Periodic synchronization of device state information; and/or, When the CGW detects a device state change, it notifies the RCMC in real time. 19. A remote control method according to claim 8 or 17, characterized in that the method further comprises: E. The RCMC and the CGW regularly perform handshaking between devices.

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