Improved power two-bus communication system

Abstract

The utility model relates to an improved power two-bus communication system, which comprises a slave station unit and a master station unit, and the master station unit is connected with the slave station unit through a two-bus. The slave station unit is provided with a PowerBus transmit-receive loop, and the transmit-receive loop comprises a signal processing circuit and a power supply processing circuit. Two-bus downlink input is accessed to the slave station unit after being subjected to downlink signal processing and power supply voltage regulation through the signal processing circuit and the power supply processing circuit, and a master station unit output signal is sent to the master station unit through a PowerBus transceiving loop via a two-bus uplink. According to the system, a functional circuit used for signal receiving and transmitting is improved at the slave end, a receiving and transmitting loop with signal processing and power supply adjusting functions is designed, and interfaces of the master end and the slave end are designed in a matched manner, so that master-slave end communication and slave end power supply can be realized by using two buses, and the system has the advantage of non-polar wiring construction; and the operation stability of the system is improved while the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of communication technology and equipment, and in particular to an improved power two-bus communication system. Background Art

[0002] Among the communication control methods currently used in industry, in addition to 4-20mA analog signals, digital communication methods generally use traditional RS485 bus communication. When actually wiring this communication method, in addition to two 485 signal lines, two additional low-voltage power supply lines are required. Due to the complex on-site construction environment, communication lines and power lines are often misconnected or reversed, which leads to communication failures and even equipment failures, bringing many inconveniences to on-site commissioning and maintenance, which not only limits work efficiency and increases workload, but also reduces the operational reliability of the system itself. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an improved power two-bus communication system, which improves the functional circuit for signal reception and transmission at the slave end, designs a PowerBus transceiver circuit with signal processing and power supply regulation functions, and designs a matching master-slave end interface, so that the master-slave end communication and slave end power supply can be realized by using two buses, and has the advantage of non-polarity wiring construction, which improves work efficiency and improves the operation stability of the system.

[0004] The improved power two-bus communication system includes a slave unit, a master unit that bidirectionally communicates with one or more slave units and provides power to the slave units, wherein the master unit is connected to the J2 / P3 / P2 interface of the slave unit through the BUSL1 and BUSL2 two buses via the J5 / P4 / P1 interface; the slave unit is provided with a PowerBus transceiver circuit, and the PowerBus transceiver circuit includes a signal processing circuit composed of Q11 and R33 and a power supply processing circuit composed of Q10, R32-C30, R35, and Q12; the two-bus downstream input is connected to the slave unit after the signal processing circuit and the power supply processing circuit perform downstream signal processing and adjust the power supply voltage, and the master unit outputs the signal through the PowerBus transceiver circuit and sends it to the master unit via the two-bus upstream.

[0005] Furthermore, the slave unit includes a slave microprocessor and a P3 interface module, a P2 interface module, and a control button and indicator light circuit connected to the corresponding pin group of the slave microprocessor, a J2 interface module connected to the input end of the PowerBus transceiver loop, and the signal processing circuit and the power supply processing circuit are respectively connected to the PO and PI pins of the slave microprocessor.

[0006] Furthermore, the master station unit includes a host microprocessor and a P4 interface module, a P1 interface module and a J5 interface module connected to corresponding pin groups of the host microprocessor, and the CONL, CONM, and CONM pins of the host microprocessor are respectively connected to power drive circuits for different output level signals.

[0007] Specifically, the slave microprocessor and the host microprocessor both use HC32F005C6UA processing chip.

[0008] The utility model discloses an improved power two-bus communication system, which improves the functional circuit for signal reception and transmission at the slave end, designs a PowerBus receiving and transmitting circuit with signal processing and power supply regulation functions, and designs matching interfaces at the master-slave end, so that the master-slave end communication and slave end power supply can be realized by using two buses, and has the advantage of non-polarity wiring construction, which improves the work efficiency and the operation stability of the system at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following is a further description of an improved power two-bus communication system of the utility model in conjunction with the accompanying drawings:

[0010] Figure 1 This is the logical structure and connection principle block diagram of the improved power two-bus communication system;

[0011] Figure 2 It is a circuit diagram of the PowerBus transceiver circuit of the improved power two-bus communication system;

[0012] Figure 3 It is a circuit diagram of the slave microprocessor of the improved power two-bus communication system;

[0013] Figure 4 It is a circuit diagram of the P3 and P2 interface modules of the improved power two-bus communication system;

[0014] Figure 5 It is a circuit diagram of the control button and indicator light circuit of the improved power two-bus communication system;

[0015] Figure 6 is a circuit diagram of the host microprocessor of the improved power two-bus communication system;

[0016] Figure 7 It is a circuit diagram of the P4, P1, and J5 interface modules of the improved power two-bus communication system;

[0017] Figure 8 It is a circuit diagram of the power driving circuit described in the improved power two-bus communication system.

[0018] In the figure:

[0019] 1-slave unit; 11-slave microprocessor, 12-P3 interface module, 13-P2 interface module, 14-control button and indicator light circuit, 15-J2 interface module;

[0020] 2-master station unit; 21-host microprocessor, 22-P4 interface module, 23-P1 interface module, 24-J5 interface module;

[0021] 3-PowerBus transceiver circuit; 31-signal processing circuit, 32-power supply processing circuit. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] The technical solution of the utility model is further described below with specific embodiments, but the protection scope of the utility model is not limited to the following embodiments.

[0025] Implementation method 1: Figures 1 to 8As shown, the improved power two-bus communication system includes a slave unit 1, a master unit 2 that bidirectionally communicates with one or more slave units 1 and provides power to the slave unit 1, wherein the master unit 2 is connected to the J2 / P3 / P2 interface of the slave unit 1 through the BUSL1 and BUSL2 two buses via the J5 / P4 / P1 interface; the slave unit 1 is provided with a PowerBus transceiver circuit 3, and the PowerBus transceiver circuit 3 includes a signal processing circuit 31 composed of Q11 and R33 and a power supply processing circuit 32 composed of Q10, R32-C30, R35, and Q12; the two-bus downlink input is connected to the slave unit 1 after the signal processing circuit 31 and the power supply processing circuit 32 perform downlink signal processing and power supply voltage adjustment, and the master unit 2 outputs the signal through the PowerBus transceiver circuit 3 and sends it to the master unit 2 via the two-bus uplink.

[0026] Implementation 2: The slave unit 1 of the improved power two-bus communication system includes a slave microprocessor 11 and a P3 interface module 12, a P2 interface module 13 connected to the corresponding pin group of the slave microprocessor 11, and a control button and indicator light circuit 14, a J2 interface module 15 connected to the input end of the PowerBus transceiver circuit 3, and the signal processing circuit 31 and the power supply processing circuit 32 are respectively connected to the PO and PI pins of the slave microprocessor 11. The master unit 2 includes a host microprocessor 21 and a P4 interface module 22, a P1 interface module 23 and a J5 interface module 24 connected to the corresponding pin group of the host microprocessor 21, and the CONL, CONM, and CONM pins of the host microprocessor 21 are respectively connected to power drive circuits for different output level signals. The remaining structures and components are as described in Implementation 1 and will not be described again.

[0027] Implementation 3: The slave microprocessor 11 and the host microprocessor 21 of the improved power two-bus communication system both use HC32F005C6UA processing chips. The remaining structures and components are as described in Implementation 1 and will not be described again.

[0028] The improved power two-bus communication system improves the functional circuit for signal reception and transmission at the slave end, designs a PowerBus transceiver circuit with signal processing and power supply regulation functions, and designs a matching interface for the master-slave end, so that the master-slave end communication and slave end power supply can be realized by using two buses, and has the advantage of non-polarity wiring construction, which improves work efficiency and improves the operation stability of the system.

[0029] The above description shows the main features, basic principles, and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments or embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, the above embodiments or embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An improved power two-bus communication system, characterized in that: The invention comprises a slave unit (1), and a master unit (2) for bidirectional communication with one or more slave units (1) and for supplying power to the slave units (1), wherein the master unit (2) is connected to the J2 / P3 / P2 interface of the slave unit (1) via the J5 / P4 / P1 interface and two buses BUSL1 and BUSL2; The slave unit (1) is provided with a PowerBus transceiver circuit (3), which comprises a signal processing circuit (31) composed of Q11 and R33 and a power supply processing circuit (32) composed of Q10, R32-C30, R35 and Q12; the downlink input of the two buses is connected to the slave unit (1) after being processed by the signal processing circuit (31) and the power supply processing circuit (32) for downlink signal processing and power supply voltage adjustment, and the output signal of the master unit (2) is sent to the master unit (2) via the PowerBus transceiver circuit (3) and the uplink of the two buses.

2. The improved power two-bus communication system according to claim 1 is characterized in that: The slave unit (1) comprises a slave microprocessor (11) and a P3 interface module (12), a P2 interface module (13), and a control button and indicator light circuit (14) connected to the corresponding pin group of the slave microprocessor (11), a J2 interface module (15) connected to the input end of the PowerBus transceiver circuit (3), and the signal processing circuit (31) and the power supply processing circuit (32) are respectively connected to the PO and PI pins of the slave microprocessor (11).

3. The improved power two-bus communication system according to claim 2, characterized in that: The master station unit (2) comprises a host microprocessor (21) and a P4 interface module (22), a P1 interface module (23) and a J5 interface module (24) connected to corresponding pin groups of the host microprocessor (21); the CONL, CONM and CONM pins of the host microprocessor (21) are respectively connected to power drive circuits for signals of different output levels.

4. The improved power two-bus communication system according to claim 3 is characterized in that: The slave microprocessor (11) and the host microprocessor (21) both adopt HC32F005C6UA processing chip.

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