Node address automatic configuration system in bus communication

Abstract

The utility model discloses a node address automatic configuration system in bus communication, which comprises a bus, the bus is connected with an upper computer, and a plurality of bus nodes are sequentially arranged on the bus. Automatic addressing special signal lines are arranged between the upper computer and the first bus node on the bus and between the bus nodes arranged adjacently on the bus, and each bus node is provided with an embedded processor, a bus communication module and a corresponding address addressing module. Through the optimized and improved design of the utility model, the problem of low efficiency caused by manual configuration of each node on the bus can be avoided, misplacement possibly caused by manual configuration and even address repetition between nodes can be effectively reduced, and the reliability of the system is improved. Therefore, the beneficial technical effects of improving the configuration efficiency and the accuracy are achieved, and the normal operation of bus communication is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of node address configuration systems, in particular to a node address automatic configuration system in bus communication. Background Art

[0002] In applications requiring bus communication (such as RS-485, 1-Wire, CanBus, and Mbus), especially in the industrial control field, the address allocation and configuration of each node on the bus are often involved. The traditional approach is to manually configure each node on the bus.

[0003] However, the traditional manual configuration method is not only inefficient, but also prone to misconfiguration and even duplicate addresses between nodes, seriously affecting the normal operation of bus communication. Utility Model Content

[0004] In view of the above technical problems in the related art, the present invention proposes a node address automatic configuration system in bus communication, which can overcome the above deficiencies in the prior art.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0006] A node address automatic configuration system in bus communication;

[0007] The node address automatic configuration system in the bus communication includes a bus, which is connected to a host computer. A number of bus nodes are sequentially arranged on the bus. Automatic addressing dedicated signal lines are provided between the host computer and the first bus node on the bus and between adjacent bus nodes on the bus. Each bus node is provided with an embedded processor, a bus communication module and a corresponding address allocation module.

[0008] Furthermore, the bus and the plurality of bus nodes are communicatively connected via a bus interface.

[0009] Furthermore, the host computer transmits the communication signal to the first bus node on the bus through the automatic addressing dedicated signal line entrance on the automatic addressing dedicated signal line.

[0010] Furthermore, the bus nodes adjacent to each other on the bus are communicatively connected via the automatic addressing dedicated signal line outlet and the automatic addressing dedicated signal line inlet at both ends of the automatic addressing dedicated signal line.

[0011] Furthermore, the communication signal sent by the host computer to the first bus node on the bus through the automatic addressing dedicated signal line is a high level, and a combination of high and low levels is formed between the automatic addressing dedicated signal line input and the automatic addressing dedicated signal line output on the first bus node.

[0012] Furthermore, the communication signal sent by the first bus node on the bus to the adjacent second bus node on the bus through the automatic addressing dedicated signal line is a high level, and a combination of high and low levels is formed between the automatic addressing dedicated signal line input and the automatic addressing dedicated signal line output on the second bus node.

[0013] Furthermore, each of the bus nodes completes automatic addressing through an automatic addressing command effect.

[0014] Furthermore, the automatic addressing dedicated signal line is a redundant signal line in the bus.

[0015] Furthermore, the bus is an RS-485 bus, a 1-Wire bus, a CanBus bus or an Mbus bus.

[0016] The beneficial effects of the present invention are as follows: by optimizing and improving the design of the product of the present invention, the inefficiency caused by manual configuration of each node on the bus can be avoided, and the mismatch that may occur in manual configuration and even the duplication of addresses between nodes can be more effectively reduced, thereby achieving the beneficial technical effect of improving configuration efficiency and accuracy, and effectively ensuring the normal operation of bus communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of an application scenario of a node address automatic configuration system in bus communication according to an embodiment of the present utility model;

[0019] Figure 2 This is a structural block diagram of a bus node in a communication system for automatically configuring node addresses in bus communication according to an embodiment of the present utility model;

[0020] In the figure: 1. Host computer; 2. Bus; 201. Bus interface; 3. Automatic addressing dedicated signal line; 301. Automatic addressing dedicated signal line entrance; 302. Automatic addressing dedicated signal line exit; 4. Bus node; 5. Embedded processor; 6. Bus communication module; 7. Address allocation module. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0022] It should be understood that in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0023] like Figure 1-2 As shown, a node address automatic configuration system in bus communication according to an embodiment of the present utility model includes a bus 2, which is connected to a host computer 1, and a number of bus nodes 4 are sequentially arranged on the bus 2. Automatic addressing dedicated signal lines 3 are provided between the host computer 1 and the first bus node 4 on the bus 2 and between the adjacent bus nodes 4 on the bus 2. Each bus node 4 is provided with an embedded processor 5, a bus communication module 6 and a corresponding address allocation module 7.

[0024] According to an embodiment of the present invention, a node address automatic configuration system in bus communication, in a specific embodiment, the bus 2 and the plurality of bus nodes 4 are communicatively connected via a bus interface 201 .

[0025] According to an embodiment of the present invention, a node address automatic configuration system in bus communication, in a specific embodiment, the host computer 1 transmits the communication signal to the first bus node 4 on the bus 2 through the automatic addressing dedicated signal line entrance 301 on the automatic addressing dedicated signal line 3.

[0026] According to an embodiment of the present invention, a node address automatic configuration system in bus communication is described. In a specific embodiment, the bus nodes 4 adjacently arranged on the bus 2 are communicatively connected through the automatic addressing dedicated signal line outlet 302 and the automatic addressing dedicated signal line inlet 301 at both ends of the automatic addressing dedicated signal line 3.

[0027] According to an embodiment of the present invention, a node address automatic configuration system in bus communication, in a specific embodiment, the communication signal sent by the host computer 1 to the first bus node 4 on the bus 2 through the automatic addressing dedicated signal line 3 is a high level, and a combination of high and low levels is formed between the automatic addressing dedicated signal line entrance 301 and the automatic addressing dedicated signal line exit 302 on the first bus node 4.

[0028] According to an embodiment of the present invention, a node address automatic configuration system in bus communication, in a specific embodiment, the communication signal sent by the first bus node 4 on the bus 2 to the adjacent second bus node 4 on the bus 2 through the automatic addressing dedicated signal line 3 is a high level, and a combination of high and low levels is formed between the automatic addressing dedicated signal line entrance 301 and the automatic addressing dedicated signal line exit 302 on the second bus node 4.

[0029] According to an embodiment of the present invention, a node address automatic configuration system in bus communication, in a specific embodiment, each of the bus nodes 4 completes automatic addressing through an automatic addressing command effect.

[0030] According to an embodiment of the present invention, a node address automatic configuration system in bus communication, in a specific embodiment, the automatic addressing dedicated signal line 3 is a redundant signal line in the bus 2.

[0031] According to an embodiment of the present invention, a node address automatic configuration system in bus communication is described. In a specific embodiment, the bus 2 is an RS-485 bus, a 1-Wire bus, a CanBus bus or an Mbus bus.

[0032] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0033] In practice, the present invention discloses a system for automatically configuring node addresses in bus communication. This system utilizes an additional signal line as a dedicated signal line 3 for automatic addressing. Existing bus 2 communications typically have redundant signal lines, which can be used as the dedicated signal line 3 for automatic addressing. The dedicated signal line 3 for automatic addressing sends a communication signal containing an automatic addressing command to each bus node 4 on the bus 2. The communication signal for the automatic addressing command is a special signal state of the dedicated signal line 3 for automatic addressing. Simultaneously, each bus node 4 on the bus 2 is equipped with a corresponding address configuration module 7. Based on the signal state received from the dedicated signal line 3 for automatic addressing, the address configuration module 7 determines whether it has received the communication signal containing the automatic addressing command. If so, it performs automatic addressing on itself and, upon completion, transmits the communication signal containing the automatic addressing command to the next bus node 4 on the bus 2. Thus, when automatic addressing is required for all bus nodes 4 on the bus 2, a single host computer 1 only needs to send a communication signal containing the automatic addressing command to the first bus node 4 on the bus 2 to complete the automatic addressing. The other bus nodes 4 on the bus 2 will receive the automatic addressing command in sequence according to the physical connection mode of the bus 2, and then all complete the automatic addressing.

[0034] In this way, when it is necessary to automatically address all bus nodes 4 on bus 2, the upper computer 1 on bus 2 only needs to send an automatic addressing command communication signal to the first bus node 4 on bus 2 through the automatic addressing dedicated signal line 3. The communication signal of the automatic addressing command can be a high level, so that the automatic addressing dedicated signal line entrance 301 and the automatic addressing dedicated signal line exit 302 on the first bus node 4 will have a certain special signal state. The special signal state can be a combination of high and low levels, forming an automatic addressing command effect, thereby completing the automatic configuration.

[0035] After the first bus node 4 completes automatic addressing, it will continue to send an automatic addressing command communication signal to the second bus node 4 through the automatic addressing dedicated signal line 3. The communication signal of the automatic addressing command can be a high level, so that the automatic addressing dedicated signal line entrance 301 and the automatic addressing dedicated signal line exit 302 on the second bus node 4 also appear in a certain special signal state, forming an automatic addressing command effect, thereby completing the automatic configuration.

[0036] In this way, the special signal is continuously sent downward, and more bus nodes 4 are continuously made to form the automatic addressing command effect, thereby completing the automatic addressing until all bus nodes 4 on the bus 2 have completed the automatic addressing.

[0037] To sum up, with the help of the above-mentioned technical solution of the utility model, through the optimization and improvement design of the product of the utility model, the inefficiency caused by manual configuration of each node on the bus can be avoided, and the mismatch that may occur in manual configuration and even the duplication of addresses between nodes can be more effectively reduced, thereby achieving the beneficial technical effect of improving configuration efficiency and accuracy, and effectively ensuring the normal operation of bus communication.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A node address automatic configuration system in bus communication, characterized in that: The invention comprises a bus (2), wherein the bus (2) is connected to a host computer (1), and a plurality of bus nodes (4) are sequentially arranged on the bus (2). A dedicated automatic addressing signal line (3) is provided between the host computer (1) and the first bus node (4) on the bus (2), and between adjacent bus nodes (4) on the bus (2). Each bus node (4) is provided with an embedded processor (5), a bus communication module (6), and a corresponding address allocation module (7).

2. A node address automatic configuration system in bus communication according to claim 1, characterized in that: The bus (2) and the plurality of bus nodes (4) are communicatively connected via a bus interface (201).

3. The node address automatic configuration system in bus communication according to claim 1, characterized in that: The host computer (1) transmits a communication signal to the first bus node (4) on the bus (2) via the automatic addressing dedicated signal line entrance (301) on the automatic addressing dedicated signal line (3).

4. The node address automatic configuration system in bus communication according to claim 1, characterized in that: The bus nodes (4) adjacently arranged on the bus (2) are communicatively connected via the automatic addressing dedicated signal line outlets (302) and the automatic addressing dedicated signal line inlets (301) at both ends of the automatic addressing dedicated signal line (3).

5. The node address automatic configuration system in bus communication according to claim 4, characterized in that: The communication signal sent by the host computer (1) to the first bus node (4) on the bus (2) via the automatic addressing dedicated signal line (3) is a high level, and a combination of high and low levels is formed between the automatic addressing dedicated signal line inlet (301) and the automatic addressing dedicated signal line outlet (302) on the first bus node (4).

6. The node address automatic configuration system in bus communication according to claim 4, characterized in that: The communication signal sent by the first bus node (4) on the bus (2) to the adjacent second bus node (4) on the bus (2) via the automatic addressing dedicated signal line (3) is a high level, and a combination of high and low levels is formed between the automatic addressing dedicated signal line inlet (301) and the automatic addressing dedicated signal line outlet (302) on the second bus node (4).

7. The node address automatic configuration system in bus communication according to claim 1, characterized in that: Each of the bus nodes (4) completes automatic addressing through the automatic addressing command effect.

8. The node address automatic configuration system in bus communication according to claim 1, characterized in that: The automatic addressing dedicated signal line (3) is a redundant signal line in the bus (2).

9. The node address automatic configuration system in bus communication according to claim 1, characterized in that: The bus (2) is an RS-485 bus, a 1-Wire bus, a CanBus bus or an Mbus bus.

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