Repeater for serial bus and communication system

Abstract

The utility model belongs to the field of repeaters for serial buses, and provides a repeater for a serial bus and a communication system. The repeater for the serial bus comprises a shell and a circuit unit, the circuit unit is arranged in the shell; the housing is provided with at least four groups of bus wire through holes which are respectively connected with a communication main line, a power supply main line, a communication branch line and a power supply branch line. The circuit unit comprises a control chip, a power supply module and a communication module; the communication module is connected with the control chip; the power supply module is connected with the power supply main line and is used for supplying power to the control chip, the communication module and the power supply branch line; the communication module comprises a communication input module and a communication output module, the communication input module is connected with the communication main line, and the communication output module is connected with the communication branch.

Description

Technical Field

[0001] The utility model belongs to the field of repeaters, and particularly relates to a repeater for a serial bus and a communication system. Background Technique

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] Repeaters are mainly used for communication bus repeaters or branch repeaters, such as Figure 1 shown, for long-distance communication or branch communication. Existing repeaters only have the function of communication cascading, but do not have the function of power bus repeating; in addition, when a line fault occurs in the existing repeater, it is necessary to use detection equipment to detect and troubleshoot multiple sections of the line in sequence, which results in a long overall troubleshooting time, reduces the troubleshooting efficiency, and even causes delays in normal production operations, thus bringing economic losses to the manufacturer. Summary of the Utility Model

[0004] In order to solve the technical problems in the above background technique, the utility model provides a repeater for a serial bus and a communication system, which relay the communication main line, power main line, communication branch line and power branch line, realizing the function of serial bus relay, and also by setting a status indication module in the repeater, it can directly reflect the current working state of the repeater when a fault occurs, improving the fault troubleshooting efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The first aspect of the utility model provides a repeater for a serial bus.

[0007] A repeater for a serial bus, which includes: a housing and a circuit unit;

[0008] The circuit unit is arranged in the housing; at least four groups of bus through holes are arranged on the housing, which are respectively connected to the communication main line, power main line, communication branch line and power branch line;

[0009] The circuit unit includes a control chip, a power supply module and a communication module; the communication module is connected to the control chip;

[0010] The power supply module is connected to the power main line and is used to supply power to the control chip, communication module and power branch line;

[0011] The communication module includes a communication input module and a communication output module, the communication input module is connected to the communication main line, and the communication output module is connected to the communication branch.

[0012] As an implementation manner, the serial bus repeater further includes a communication status indication module, the communication status indication module is connected to the control chip, and the status indication module includes an input status indication module and an output status indication module.

[0013] As an implementation manner, the input status indication module includes a first multi-color indicator light and a corresponding resistor connected in series therewith, and the input status indication module indicates the on / off state of the communication input module through the color change of the first multi-color indicator light;

[0014] The output status indication module includes a second multi-color indicator light and a corresponding resistor connected in series therewith, and the output status indication module indicates the on / off state of the communication output module through the color change of the second multi-color indicator light.

[0015] As an implementation manner, the power supply module includes a first step-down module and a second step-down module connected in series, and at least one light-emitting diode is arranged on the power supply module to indicate the power on / off state.

[0016] As an implementation manner, the communication input module includes a first communication chip, the first communication chip is connected to the communication main line through a first input circuit, and the first communication chip is connected to the control chip through a first output circuit; the communication output module includes a second communication chip, the second communication chip is connected to the control chip through a second input circuit, and the second communication chip is connected to the communication branch line through a second output circuit.

[0017] As an implementation manner, the communication module is a CAN communication module.

[0018] As an implementation manner, the housing includes a first sub-housing and a second sub-housing, the first sub-housing and the second sub-housing form an opening and closing structure, and four groups of bus through holes are opened on the first sub-housing or the second sub-housing.

[0019] As an implementation manner, the housing includes a first sub-housing, a second sub-housing and a third sub-housing connected in sequence, the first sub-housing, the second sub-housing and the third sub-housing form an opening and closing structure in sequence, two groups of bus through holes are arranged between the first sub-housing and the second sub-housing, and two groups of bus through holes are arranged between the second sub-housing and the third sub-housing.

[0020] As an implementation manner, the control chip is further connected to a crystal oscillator circuit, a reset circuit and a debugging circuit;

[0021] The crystal oscillator circuit is used to connect the clock interface of the control chip;

[0022] The reset circuit is used to connect the reset interface of the control chip;

[0023] The debugging circuit is used for the debugging interface of an externally connected control chip.

[0024] As an implementation manner, the circuit unit is respectively connected to the communication main line, the power main line, the communication branch line, and the power branch line through a piercing structure.

[0025] The second aspect of the present utility model provides a communication system.

[0026] A communication system includes: a plurality of serial bus repeaters connected in series as described above.

[0027] The beneficial effects of the present utility model are as follows:

[0028] (1) The repeater of the present utility model integrates a communication main line, a power main line, a communication branch line, and a power branch line, realizing the function of serial bus relaying and meeting the communication and power requirements in long-distance scenarios.

[0029] (2) The circuit unit of the serial bus repeater of the present utility model is provided with a status indication module, and the status indication module consists of an input status indication module and an output status indication module. By using these two modules, the current working state of the repeater can be intuitively reflected when a fault occurs, greatly shortening the overall troubleshooting time, improving the troubleshooting efficiency, and ensuring normal production operations.

[0030] The advantages of the additional aspects of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0031] The specification drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0032] Figure 1 It is the relaying communication schematic diagram of the repeater;

[0033] Figure 2 It is the schematic diagram of the circuit unit of the serial bus repeater according to the embodiment of the present utility model;

[0034] Figure 3 It is the schematic diagram of the control chip of the serial bus repeater according to the embodiment of the present utility model;

[0035] Figure 4 It is the schematic diagram of the first step-down module according to the embodiment of the present utility model;

[0036] Figure 5 It is the schematic diagram of the second step-down module according to the embodiment of the present utility model;

[0037] Figure 6 is the schematic diagram of the CAN communication input module according to an embodiment of the present utility model;

[0038] Figure 7 is the schematic diagram of the CAN communication output module according to an embodiment of the present utility model;

[0039] Figure 8 is the schematic diagram of the input status indication module according to an embodiment of the present utility model;

[0040] Figure 9 is the schematic diagram of the output status indication module according to an embodiment of the present utility model;

[0041] Figure 10 is a schematic diagram of a housing structure of a repeater for a serial bus according to an embodiment of the present utility model;

[0042] Figure 11 is another schematic diagram of a housing structure of a repeater for a serial bus according to an embodiment of the present utility model.

[0043] Among them:

[0044] 1. First sub-housing; 2. Second sub-housing; 3. Third sub-housing; 4. Bus through-hole. Detailed implementation manners

[0045] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0047] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only relational terms determined for the convenience of describing the structural relationships of various components or elements of the present utility model and do not specifically refer to any component or element of the present utility model. They should not be construed as limiting the present utility model.

[0049] In the present utility model, terms such as "fixed connection", "connected", "connected to" should be understood in a broad sense, which may mean a fixed connection, an integral connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present utility model can be determined according to specific circumstances, and it should not be understood as a limitation to the present utility model.

[0050] According to Figure 2 , an embodiment of the present utility model provides a repeater for a serial bus, including: a housing and a circuit unit; the circuit unit is arranged in the housing; at least four groups of bus through holes are arranged on the housing, which are respectively connected to a communication main line, a power main line, a communication branch line and a power branch line; the circuit unit includes a control chip, a power supply module and a communication module; the communication module is connected to the control chip; the power supply module is connected to the power main line and is used to supply power to the control chip, the communication module and the power branch line; the communication module includes a communication input module and a communication output module, the communication input module is connected to the communication main line, and the communication output module is connected to the communication branch line.

[0051] Among them, the debugging module is the corresponding output interface circuit of the control chip.

[0052] Such as Figure 3 shown, the control chip MCU in the embodiment of the present utility model adopts an AT32F413BU7 chip.

[0053] Figure 3 Other circuits in are all peripheral circuits of the control chip MCU. According to the chip manual, those skilled in the art can design their corresponding peripheral circuits.

[0054] It can be understood that in other embodiments, the control chip MCU can also be a chip of other models, which will not be elaborated here.

[0055] In one or more embodiments, the circuit unit is respectively connected to the communication main line, the power main line, the communication branch line and the power branch line through a piercing structure.

[0056] It should be noted here that the piercing structure can be realized by using an existing structure, which will not be elaborated here.

[0057] In this embodiment, the power supply module includes a first step-down module and a second step-down module connected in series. At least one light-emitting diode is arranged on the power supply module to indicate the power-on and power-off state.

[0058] Such as Figure 4As shown in the figure, the first step-down module includes a first voltage-drop chip. The input end of the first voltage-drop chip can be connected to a high-voltage DC power supply, such as a +48V DC power supply. The output end passes through a filtering circuit to obtain a stepped-down voltage signal, such as +5V.

[0059] As Figure 5 shown in the figure, the second step-down module includes a second voltage-drop chip. The input end of the second voltage-drop chip can be connected to a +5V DC power supply, and a +3.3V voltage signal is output.

[0060] In this embodiment, the communication input module includes a first communication chip. The first communication chip is connected to the communication main line through a first input circuit, and the first communication chip is connected to the control chip through a first output circuit. As Figure 6 shown in the figure, the communication input module adopts a CAN communication input circuit structure, which specifically includes: a communication chip U4 and its peripheral circuits. Among them, the model of the communication chip U4 is: CA-IS3062W. Those skilled in the art can also use other models of chips, which will not be elaborated here.

[0061] In this embodiment, the communication output module includes a second communication chip. The second communication chip is connected to the control chip through a second input circuit, and the second communication chip is connected to the communication branch line through a second output circuit. As Figure 7 shown in the figure, the communication output module adopts a CAN communication input circuit structure, which specifically includes: a communication chip U5 and its peripheral circuits. Among them, the model of the communication chip U5 is: CA-IS3062W. Those skilled in the art can also use other models of chips, which will not be elaborated here.

[0062] Among them, the control chip is also connected to a crystal oscillator circuit, a reset circuit, and a debugging circuit;

[0063] The crystal oscillator circuit is used to connect to the clock interface of the control chip;

[0064] The reset circuit is used to connect to the reset interface of the control chip;

[0065] The debugging circuit is used to externally connect to the debugging interface of the control chip.

[0066] It should be noted here that the circuit structures of the crystal oscillator circuit, the reset circuit, and the debugging circuit are all existing structures, which can be designed according to the corresponding control chip and will not be elaborated here.

[0067] As Figure 8 shown in the figure, the input status indication module includes a first dual-color indicator D3 and resistors (including resistor R9 and resistor R16) connected in series therewith. The input status indication module indicates the on / off of the communication input module through the color change of the first multi-color indicator.

[0068] As Figure 9As shown, the output status indication module includes a second dual-color indicator lamp D4 and resistors (including resistor R5 and resistor R19) connected in series therewith. The output status indication module indicates the on / off of the communication publishing module through the color change of the second multi-color indicator lamp.

[0069] Figure 10 FIG. shows a schematic structural view of a housing of a repeater for a serial bus according to an embodiment of the present invention, as Figure 10 shown, the housing includes a first sub-housing 1 and a second sub-housing 2, the first sub-housing 1 and the second sub-housing 2 are fixedly connected and matched to form an integral structure, and four groups of bus through holes 4 are provided on the second sub-housing 2.

[0070] In other embodiments, the four groups of bus through holes 4 may also be provided on the first sub-housing 1.

[0071] Figure 11 FIG. shows another schematic structural view of a housing of a repeater for a serial bus according to an embodiment of the present invention, as Figure 11 shown, the housing includes a first sub-housing 1, a second sub-housing 2 and a third sub-housing 3 connected in sequence, and two groups of bus through holes 4 are respectively provided on the second sub-housing 2 and the third sub-housing 3.

[0072] In one or more embodiments, a communication system is provided, including: a plurality of serial bus repeaters connected in series as described above.

[0073] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A serial bus repeater, characterized in that: include: Housing and circuit unit; The circuit unit is arranged in the housing; the housing is provided with at least four groups of bus wire holes, which are respectively connected to the communication main line, the power main line, the communication branch line and the power branch line; The circuit unit includes a control chip, a power supply module and a communication module; the communication module is connected to the control chip; The power supply module is connected to the main power line and is used to supply power to the control chip, the communication module and the power branch line; The communication module includes a communication input module and a communication output module. The communication input module is connected to the communication main line, and the communication output module is connected to the communication branch line.

2. The serial bus repeater according to claim 1, wherein: The serial bus repeater further comprises a communication status indication module, the communication status indication module is connected to the control chip, and the status indication module comprises an input status indication module and an output status indication module.

3. The serial bus repeater according to claim 2, wherein: The input status indication module comprises a first multi-color indicator light and a corresponding resistor connected in series therewith, and the input status indication module indicates the on / off state of the communication input module through the color change of the first multi-color indicator light; The output status indication module includes a second multi-color indicator light and a corresponding resistor connected in series therewith. The output status indication module indicates the on and off of the communication output module through the color change of the second multi-color indicator light.

4. The serial bus repeater according to claim 1, wherein: The power supply module comprises a first step-down module and a second step-down module connected in series. The power supply module is provided with at least one light emitting diode for indicating the on / off state of the power supply.

5. The serial bus repeater according to claim 1, wherein: The communication input module includes a first communication chip, the first communication chip is connected to the communication main line through a first input circuit, and the first communication chip is connected to the control chip through a first output circuit; the communication output module includes a second communication chip, the second communication chip is connected to the control chip through a second input circuit, and the second communication chip is connected to the communication branch line through a second output circuit.

6. The serial bus repeater according to claim 1, wherein: The communication module is a CAN communication module.

7. The serial bus repeater according to claim 1, wherein: The housing comprises a first sub-housing and a second sub-housing, wherein the first sub-housing and the second sub-housing constitute an open-close structure, and four groups of bus wire holes are arranged on the first sub-housing or the second sub-housing.

8. The serial bus repeater according to claim 1, wherein: The shell includes a first sub-shell, a second sub-shell and a third sub-shell connected in sequence, the first sub-shell, the second sub-shell and the third sub-shell constitute an open-close structure in sequence, two groups of bus wire holes are arranged between the first sub-shell and the second sub-shell, and two groups of bus wire holes are arranged between the second sub-shell and the third sub-shell.

9. The serial bus repeater according to claim 1, wherein: The control chip is also connected to a crystal oscillator circuit, a reset circuit and a debugging circuit; The crystal oscillator circuit is used to connect to the clock interface of the control chip; The reset circuit is used to connect to the reset interface of the control chip; The debugging circuit is used for the debugging interface of the external control chip.

10. The serial bus repeater according to claim 7 or 8, characterized in that: The circuit unit is connected to the communication main line, the power main line, the communication branch line and the power branch line respectively through the piercing structure.

11. A communication system, characterized in that: include: A plurality of serial bus repeaters for a serial bus as claimed in any one of claims 1 to 10 connected in series.

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