CN108471440A - Digital talkback method and system - Google Patents

Abstract

The embodiment of the invention discloses a digital talkback method and a digital talkback system, wherein the method comprises the following steps: responding to a talkback request of a terminal machine, and acquiring a talkback number of a target machine, which is input by a user through the terminal machine; and converting the talkback number of the target machine into an IP address in a preset network segment based on an operation formula, and realizing the talkback connection between the terminal machine and the target machine based on the IP address. Therefore, on the premise of not increasing the cost and the system complexity, the dependence of the intercom system on the central server is reduced, and the reliability of the intercom system is improved.

Description

A digital intercom method and system

technical field

The invention relates to the field of digital intercom, in particular to a digital intercom method and system.

Background technique

The digital intercom systems currently on the market generally operate on a LAN, or are based on a LAN and then extended to a WAN. No matter what kind of network, the primary problem to be solved in digital communication is how to make all terminals uniquely identified on the network, that is, to determine the IP addresses of all terminals in the TCP/IP protocol.

At present, there are many ready-made protocols that can be used to solve the IP address problem of the digital intercom system, for example: DNS, DHCP and the like. There are also some digital intercom systems that use a custom protocol or a custom method to assign IP, and these methods inevitably require a central server and a central database. On the other hand, the reliability requirements of the intercom system are high. Once the server fails, the intercom system will be paralyzed as a whole, causing many people to be unable to enter the door, and the security personnel will be too busy, making the user experience extremely poor. Some intercom systems are designed to be weakly dependent on the central server. Generally, they must rely on the server during setup. Even if the server fails during operation, the terminal can still continue to run some basic functions. However, this intercom system also has certain limitations. However, this type of intercom system needs to use very high-end servers and backup systems, which makes the intercom system not only costly but also more complicated.

Contents of the invention

The embodiment of the present invention provides a digital intercom method and system, which reduces the dependence of the intercom system on the central server and improves the reliability of the intercom system without increasing the cost and system complexity.

In the first aspect, the embodiment of the present invention provides a digital intercom method, including:

In response to the intercom request of the terminal, acquire the intercom number of the target machine input by the user through the terminal;

The intercom number of the target machine is converted into an IP address in a preset network segment based on an operation formula, and the intercom connection between the terminal machine and the target machine is realized based on the IP address.

In the second aspect, the embodiment of the present invention also provides a digital intercom system, including:

The first response obtaining unit is used to obtain the intercom number of the target machine input by the user through the terminal in response to the intercom request of the terminal;

The first conversion and connection unit is used to convert the intercom number of the target machine into an IP address in a preset network segment based on an operation formula, and realize the intercom connection between the terminal machine and the target machine based on the IP address.

In the digital intercom method and system provided by the embodiments of the present invention, the intercom number of the target machine input by the user through the terminal is acquired, and the intercom number is converted into an IP address in the preset network segment according to the calculation formula, In order to realize the intercom connection between the terminal machine and the target machine based on the IP address. Therefore, without increasing the cost and complexity of the system, the dependence of the intercom system on the central server is reduced, and the reliability of the intercom system is improved.

Description of drawings

FIG. 1 is a schematic flowchart of a digital intercom method provided in Embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of converting an intercom number into an IPv6 address provided by Embodiment 1 of the present invention;

FIG. 3 is a schematic flowchart of a digital intercom method provided in Embodiment 2 of the present invention;

FIG. 4 is a schematic diagram of converting a target group number into an IPv6 address according to Embodiment 2 of the present invention;

Fig. 5 is a schematic flow chart of a digital intercom method provided by Embodiment 3 of the present invention;

Fig. 6 is a schematic structural diagram of a digital intercom system provided by Embodiment 4 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Embodiment one

Fig. 1 is a flow chart of a digital intercom method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of one-to-one calls between a terminal machine and a target machine. The method can be implemented by a digital intercom system, which specifically includes the following steps:

Step 110, in response to the intercom request of the terminal, acquire the intercom number of the target machine input by the user through the terminal.

In the digital intercom system, each terminal has a unique intercom number, which can be understood and memorized by the user, but cannot be directly understood by the terminal and used for network communication. It is converted into an IP address that enables network communication. In a digital intercom system, the intercom number of a common terminal generally consists of three parts, including terminal type, digit field and extension number, as shown in Figure 2. Among them, the terminal type and extension number are composed of 1-digit 26-digit numbers, and the number field is composed of no more than 16-digit decimal numbers. For example, in order to facilitate user memory, the number field can be set to 3-6 A decimal number of digits. When making a call between the terminal and the target machine, first obtain the intercom number of the target machine input by the user through the terminal, so as to convert the intercom number into an IP address capable of network communication.

Step 120: Convert the intercom number of the target machine into an IP address in a preset network segment based on the calculation formula, and realize the intercom connection between the terminal machine and the target machine based on the IP address.

In the current common digital intercom system, there are exhaustive methods and formula methods to convert the intercom number into an IP address. Among them, the exhaustive method is to establish a list of corresponding relationships between intercom numbers and IP addresses based on the intercom numbers of all terminals and their corresponding IP addresses. Based on the central server and the central database, each terminal is dynamically or statically Assign the corresponding IP address. The formula method is rarely used in the intercom system due to the capacity limitation of the IPv4 encoding space in the local area network.

Due to the large encoding space of IPv6, it can accommodate the number of possible values of the IP address corresponding to the intercom number in any digital intercom system. Therefore, in the digital intercom system of the present application, the intercom number of the terminal can be converted into a corresponding IPv6 address by using a formula. Specifically, it is first necessary to pre-divide network segments according to different business requirements. For example, it can be divided into service segment (FEC0:3::x/64 segment), intercom segment (FEC0:4::x/64 segment ) and the basic segment (FE80::x/64 segment). Among them, the service section can be used for other services other than the intercom of the intelligent building system, specifically, it can be used for services associated with the terminal serial number of the terminal; the intercom section can be used for intercom between terminals, corresponding to the intercom number ; The basic segment can be used for link-local addresses, corresponding to the MAC address of the network card. Correspondingly, each terminal has three IPv6 addresses: (1) FEC0:3::x/64, which is generated according to the terminal serial number of each terminal and used for services associated with the terminal serial number; ( 2) FEC0:4::x/64, generated according to the intercom number, used for intercom communication; (3) FE80::x/64, link local address, automatically generated by the bottom layer of the network, the IP has nothing to do with the business, For purposes other than the above two IPs.

Since each terminal has a unique intercom number, according to the intercom number, set the corresponding IP address for each terminal in advance. For example, the respective intercom numbers of each terminal can be converted according to the calculation formula into the corresponding IPv6 address in the preset network segment. After obtaining the intercom number of the target machine, convert it into a binary number according to the calculation formula, and store it in the lower 64 bits of the IPv6 address in the intercom segment. For example, the conversion process can be seen in Figure 2. When converting according to the calculation formula , convert the 26-ary terminal type of the intercom number into a binary number, and store it in the 59th-63rd bits of the IPv6 address; convert the decimal number field of the intercom number into a binary number, and store it in the corresponding IPv6 The 5th-58th digit of the address; convert the 26-digit extension number of the intercom number into a binary number, and store it in the 0-4th digit of the IPv6 address. Thus, the intercom number of the target machine is converted into its corresponding IPv6 address. At the same time, due to the uniqueness of the intercom number of each terminal machine, the converted IPv6 address uniquely corresponds to one target machine. Based on this IPv6 address, it can be Connect to the corresponding target machine, since the IP addresses of the terminal machine and the target machine are in the same network segment, the terminal machine and the target machine can communicate directly. Therefore, the digital intercom system of the present invention does not rely on the central server to assign IP addresses, and the system will not be paralyzed due to the failure of the central server, thereby enhancing the reliability of the intercom system.

In this embodiment, the intercom number of the target machine input by the user through the terminal is obtained, and the intercom number is converted into an IPv6 address in the preset network segment according to the calculation formula, so as to realize the communication between the terminal and the target machine based on the IPv6 address. The intercom connection of the target machine. Therefore, without increasing the cost and complexity of the system, the dependence of the intercom system on the central server is reduced, and the reliability of the intercom system is improved.

Embodiment two

FIG. 3 is a schematic flowchart of a digital intercom method provided by Embodiment 2 of the present invention. This embodiment is applicable to the situation where a one-to-many call is made between a terminal machine and multiple target machines. The method can be performed by a digital intercom system, and specifically includes the following steps:

Step 210: Divide multiple terminals into target groups, where the target group corresponds to a group number.

In the digital intercom system, according to the actual business needs, divide multiple target groups, and set corresponding function codes for each target group according to different services, so as to accurately know the function of each target group according to the function code, Exemplarily, it can be determined according to the function code whether the target group is making a one-to-many call, searching for door phones in the same unit, or searching for all fence phones within the cell range. At the same time, a corresponding group number is also set for each target group, so that the target group of a certain function can be directly searched according to the group number, and the function code of the target group can be found through the target group number. Wherein, each target group includes multiple terminals.

Step 220, in response to the call request from the terminal to multiple target machines in the target group, acquire the group number of the target group.

When any terminal in the target group sends a call request to other multiple target machines in the group, the group number of the target group is acquired.

Step 230: Convert the group number of the target machine into an IP multicast address in the preset network segment based on the calculation formula, and realize the intercom between the terminal machine and multiple target machines in the target group based on the IP multicast address connect.

According to the operational formula, convert the group number of the target machine obtained into the IPv6 multicast address of the intercom segment, exemplary, as shown in Figure 4, all multicast addresses used by the digital intercom system of the present invention are by the same algorithm Realization, the format of the IP address is: FF72:0240:x::y, where x is the function code, which can be expanded according to the needs of the business. y is the group ID. According to different functions, there will be various definitions. When converting, the group number is converted into a binary number and stored in the lower 32 bits of the IPv6 multicast address. In addition, the function code of the target group can also be searched according to the group number of the target group, and the function code is also converted into a binary number and stored in the 80th-95th bits of the IPv6 multicast address. Since the IPv6 multicast address can identify different interfaces, it can also identify the terminals in the target group. Based on the IPv6 multicast address, the intercom connection between the terminal machine in the target group and multiple target machines in the group can be realized at the same time.

In this embodiment, the group number of the target group input by the user through the terminal is obtained, and the group number is converted into an IPv6 address in the preset network segment according to the calculation formula, and the function code of the group is searched according to the group number so that Based on the IP address, the intercom connection between the terminal machine and multiple target machines is realized. Therefore, without increasing the cost and complexity of the system, the dependence of the intercom system on the central server is reduced, and the reliability of the intercom system is improved.

Embodiment Three

Figure 5 is a schematic flow chart of a digital intercom method provided by Embodiment 3 of the present invention. This embodiment is applicable to each terminal in the digital intercom system without relying on the central database to understand the situation of their respective roles in the system, such as As shown in Figure 5, the method includes the following steps:

Step 310: Divide multiple terminals into target groups, where the target group corresponds to a group number.

Step 320, after acquiring the group number of the target group, convert the group number of the target machine into an IP multicast address in a preset network segment based on an operation formula.

For the implementation principle and specific execution process of the above steps 310 to 320, refer to the description in the embodiment corresponding to FIG. 3 , and details are not repeated here.

Step 330: Respond to the handshake communication request made by the terminals in the target group through the IP multicast address.

All digital intercom systems have an organizational structure, and the data of the organizational structure of the existing digital intercom system is often stored in the central database, and the terminal relies on the central database to obtain the organizational structure information of the intercom system where it is located. In the digital intercom system of the present invention, the terminals in the target group perform handshake communication through the IPv6 multicast address to obtain information about other terminals in the target group, thereby reducing the dependence of the terminals on the central database. When idle or necessary, the terminals in the target group send out handshake communication requests.

Step 340, sending the organizational structure information of the target group to the terminals in the target group.

Any terminal in the target group can perform handshake communication with other terminals in the group through the IPv6 multicast address to obtain the organizational structure information of the target group, such as the types of all terminals in the target group and the location of each terminal in the target group. The role played by the target group. Exemplarily, if an indoor unit in the target group performs handshake communication with other terminal units in the group through the IPv6 multicast address, it can learn about other indoor units in the room where the terminal unit is located and the door of the building unit where the terminal unit is located. machine information.

In this embodiment, by obtaining the group number of the target group input by the user through the terminal, and converting the group number into an IPv6 address in the preset network segment according to the calculation formula, so that the terminal in the target group is idle or necessary Handshake communication is carried out in order to understand the organizational structure information of the target group. Thus, the intercom system's dependence on the central database is reduced, and the reliability of the intercom system is improved.

Embodiment four

Fig. 6 is a schematic structural diagram of a digital intercom system provided in Embodiment 4 of the present invention. As shown in Fig. 4, the system includes:

The first response obtaining unit is used to obtain the intercom number of the target machine input by the user through the terminal in response to the intercom request of the terminal;

The first conversion and connection unit is used to convert the intercom number of the target machine into an IP address in a preset network segment based on an operation formula, and realize the intercom connection between the terminal machine and the target machine based on the IP address.

A digital intercom system provided by an embodiment of the present invention obtains the intercom number of the target machine input by the user through the terminal, and converts the intercom number into an IPv6 address in the preset network segment according to the calculation formula, so as to be based on The IPv6 address realizes the intercom connection between the terminal machine and the target machine. Therefore, without increasing the cost and complexity of the system, the dependence of the intercom system on the central server is reduced, and the reliability of the intercom system is improved.

On the basis of the above-mentioned embodiments, the system also includes:

a grouping unit, configured to divide multiple terminals into target groups, and the target group corresponds to a group number;

The second response obtaining unit is used to obtain the group number of the target group in response to the call request from the terminal to multiple target machines in the target group;

The second conversion and connection unit is used to convert the group number of the target machine into an IP multicast address in a preset network segment based on an operation formula, and based on the IP multicast address, realize the connection between the terminal machine and multiple terminals in the target group The intercom connection of the target machine.

On the basis of the above-mentioned embodiments, the system also includes:

A response request unit, configured to respond to the handshake communication request performed by the terminals in the target group through the IP multicast address;

A communication unit, configured to send the organizational structure information of the target group to the terminals in the target group.

On the basis of the above-mentioned embodiments, the first converting and connecting unit is specifically used for:

Convert the terminal type, digital field and extension number that make up the intercom number into binary numbers based on the formula, and store them in the corresponding digits of the IP address in the preset network segment, and realize the intercom between the terminal and the target machine based on the IP address connect.

On the basis of the foregoing embodiments, the IP address is an IPV6 address, and correspondingly, the IP multicast address is an IPV6 multicast address.

A digital intercom system provided in an embodiment of the present invention can execute a digital intercom method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (10)

1. a kind of digital intercom method, which is characterized in that including：

In response to the intercommunication request of terminating machine, the intercommunication number for the target machine that user is inputted by the terminating machine is obtained；

It is real based on the IP address based on operational formula by the intercommunication number translated of the target machine at the IP address in the default network segment The intercommunication of existing terminating machine and target machine connects.

2. according to the method described in claim 1, it is characterized in that, the method further includes：

Multiple terminating machines are divided into target group, the target group corresponds to a group number；

In response to the call request of multiple target machines of the terminating machine into target group, the group number of the target group is obtained；

The group number of the target machine is converted into the IP multicast address in the default network segment based on operational formula, based on the IP multicasts Realize that the terminating machine and the intercommunication of multiple target machines in target group are connect in location.

3. according to the method described in claim 2, it is characterized in that, the method further includes：

It is asked by the carrying out shake communication that the IP multicast address carries out in response to the terminating machine in the target group；

The organizational structure information of the target group is sent to the terminating machine in the target group.

4. according to the method described in claim 1, it is characterized in that, it is described based on operational formula by the intercommunication number of the target machine Code is converted into the IP address in the default network segment, including：

The terminal type, digital section and the extension number that form intercommunication number are converted into binary number based on formula respectively, and stored In the corresponding numerical digit of IP address in the default network segment.

5. method according to any one of claims 1-4, which is characterized in that the IP address is the addresses IPv6, correspondingly, The IP multicast address is IPv6 multicast address.

6. a kind of digital intecommunication system, which is characterized in that including：

First response acquiring unit, is asked for the intercommunication in response to terminating machine, obtains what user was inputted by the terminating machine The intercommunication number of target machine；

First conversion connection unit, is used for the intercommunication number translated of the target machine based on operational formula in the default network segment IP address realizes that the intercommunication of terminating machine and target machine connects based on the IP address.

7. system according to claim 6, which is characterized in that the system also includes：

Grouped element, for multiple terminating machines to be divided into target group, the target group corresponds to a group number；

Second response acquiring unit obtains institute for the call request of multiple target machines in response to terminating machine into target group State the group number of target group；

Second conversion connection unit, the IP groups for being converted into the group number of the target machine based on operational formula in the default network segment Address is broadcast, realizes that the terminating machine and the intercommunication of multiple target machines in target group are connect based on the IP multicast address.

8. system according to claim 7, which is characterized in that the system also includes：

Respond request unit, for logical by shaking hands of carrying out of the IP multicast address in response to the terminating machine in the target group News request；

Communication unit, the terminating machine for being sent to the organizational structure information of the target group in the target group.

9. wanting the system described in 6 according to right, which is characterized in that the first conversion connection unit is specifically used for：

The terminal type, digital section and the extension number that form intercommunication number are converted into binary number based on formula, and are stored in pre- If in the corresponding numerical digit of the IP address in the network segment, realizing that the intercommunication of terminating machine and target machine connects based on the IP address.

10. according to the system described in claim 6-9, which is characterized in that the IP address is the addresses IPv6, correspondingly, described IP multicast address is IPv6 multicast address.