CN113296479A

CN113296479A - Bus network access unit, transmission line electrical control system and deployment method

Info

Publication number: CN113296479A
Application number: CN202010553026.4A
Authority: CN
Inventors: 邓嘉; 王钟卿
Original assignee: Alibaba Group Holding Ltd
Current assignee: Hema China Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-08-24
Also published as: WO2021254224A1

Abstract

The disclosure provides a bus network access unit, a transmission line electrical control system and a deployment method. The method comprises the following steps: in a deployment stage, a first bus network access unit detects the access and exit properties of a connection port of a second bus network access unit connected with the first bus network access unit; determining the signal flow direction in the second bus network access unit according to the inlet and outlet properties of the connection port of the second bus network access unit; and if the signal flow direction is not consistent with the preset conveying direction corresponding to the second bus network access unit, outputting prompt information.

Description

Bus network access unit, transmission line electrical control system and deployment method

Technical Field

The present disclosure relates to the field of automatic control, and more particularly, to a bus network access unit, a transmission line electrical control system, and a deployment method.

Background

Modern logistics merchant background logistics sorting and ex-warehouse generally adopt conveying line products. The conveyor line is the sum of all conveying devices such as a conveyor belt and a conveyor which complete the conveyance of the article. In the places surrounding the storehouses, the production workshops and the packaging workshops, a conveying chain consisting of a plurality of belt conveyors, roller conveyors and the like is arranged, and the continuous conveying line is formed by connecting the belt conveyors, the roller conveyors and the like end to end. Since the transmission line not only needs physical equipment for actual transmission, but also needs an electric control signal to control transmission of the transmission line, a corresponding electric control system is also needed in the transmission line.

The electric control system of the conveyor line which is used in a large amount in the market at present adopts a Programmable Logic Controller (PLC) for centralized control, and has the main defects of single-point or multi-point control, complex wiring, difficult field deployment, easy occurrence of assembly errors and difficult quick shop opening. The electric control system of another kind of improvement transfer chain adopts the singlechip, has just solved PLC problem with high costs, and the shortcoming still is the field deployment difficulty, appears assembling mistake easily, is unfavorable for opening a shop fast.

Therefore, in order to overcome the above problems, a technology has been developed in which the conveyor line is divided into sections, each of the sections has a bus network access unit as an electrical control part, and the bus network access units are connected in an adjacent relationship to the conveyor sections, and constitute the whole electrical control system in a manner similar to building blocks. However, due to the directionality of the bus net-entering unit (the direction of the cargo entering and exiting is fixed), it is impossible to use the bus net-entering unit if the bus net-entering unit is assembled incorrectly. If the assembly is wrong and cannot be perceived during assembly, repeated assembly is caused, and the field deployment time is prolonged.

Disclosure of Invention

In view of this, the present disclosure is directed to reducing the time to deploy a conveyor line electrical control system.

According to an aspect of the present disclosure, there is provided a method for deploying a transmission line electrical control system, wherein the electrical control system is formed by connecting bus network access units, the method including:

in a deployment stage, a first bus network access unit detects the access and exit properties of a connection port of a second bus network access unit connected with the first bus network access unit;

determining the signal flow direction in the second bus network access unit according to the inlet and outlet properties of the connection port of the second bus network access unit;

and if the signal flow direction is not consistent with the preset goods conveying direction corresponding to the second bus network access unit, outputting prompt information.

Optionally, the alerting comprises at least one of:

displaying a connection error or sending a voice prompt of the connection error on a cloud platform server for controlling the transmission line electrical control system;

the alarm lamp arranged on the first bus network access unit is lightened;

enabling a loudspeaker arranged on the first bus network access unit to send out voice prompt;

and enabling the animation display rotating direction on the animation effect display area arranged on the first bus network access unit.

Optionally, for a plurality of serially connected linear bus network access units in the electrical control system, the linear bus network access units are sequentially used as the first bus network access unit, and the other linear bus network access units connected to the first bus network access unit are used as the second bus network access unit.

Optionally, for a transfer machine bus network access unit in the electrical control system, the transfer machine bus network access unit is used as the first bus network access unit, and a linear bus network access unit connected to the first bus network access unit is used as the second bus network access unit.

Optionally, the detecting, by the first bus network access unit, an access property of a connection port of a second bus network access unit connected to the first bus network access unit includes:

if the first bus network access unit receives a message indicating a port number 1 of the second bus network access unit in the continuous periods of a first scanning period, a second scanning period, a third scanning period and a fourth scanning period, determining that a connection port of the second bus network access unit is an inlet, wherein the bus network access unit is provided with a first port, a second port, a third port and a fourth port, and the port numbers are 1-4 respectively;

and if the first bus network access unit receives the message indicating the port number 3 of the second bus network access unit in the continuous periods of the first scanning period, the second scanning period, the third scanning period and the fourth scanning period, determining that the connection port of the second bus network access unit is an exit.

Optionally, the determining, according to the inlet and outlet properties of the connection port of the second bus network access unit, a signal flow direction in the second bus network access unit includes:

if the determined connection port of the second bus network access unit is an inlet, determining that the signal flow direction is a direction departing from the first bus network access unit;

and if the determined connection port of the second bus network access unit is an outlet, determining that the signal flow direction is a direction towards the first bus network access unit.

Optionally, the message indicating the port number 1 of the second bus network access unit further indicates that the bus number is 1, where the bus network access unit has a first bus and a second bus, and the bus numbers are 1-2 respectively; and the message of the second bus network access unit indicating the port number 3 also indicates that the bus number is 2.

Optionally, the message indicating port number 1 and the message indicating port number 3 of the second bus network access unit further indicate an identifier of the second bus network access unit; the method further comprises the following steps: and reporting the identification, the bus number and the port number of the second bus network access unit received by the first bus network access unit to a cloud platform server, and generating the topology of the electrical control system by the cloud platform server.

According to an aspect of the present disclosure, a bus networking unit is provided, which includes a first port, a second port, a third port, a fourth port, and a controller, where the controller determines an access property of a connection port of a second bus networking unit connected to the bus networking unit according to a message received by at least one of the first port, the second port, the third port, and the fourth port, and determines a signal flow direction in the second bus networking unit according to the access property of the connection port of the second bus networking unit, where if the signal flow direction is not consistent with a predetermined transport direction corresponding to the second bus networking unit, a prompt message is output.

Optionally, the output prompt message includes at least one of:

sending a notification message to a cloud platform server so that the cloud platform server can display a connection error or send a voice prompt of the connection error;

the alarm lamp arranged on the bus network access unit is lightened;

a loudspeaker arranged on the bus network access unit sends out voice prompt;

the rotating direction of the animation display on the animation effect display area arranged on the bus network access unit is enabled.

Optionally, the bus network access unit is one of a plurality of serially connected linear bus network access units in the electrical control system, and the second bus network access unit is another linear bus network access unit connected to the bus network access unit.

Optionally, the bus network access unit is a transfer machine bus network access unit in the electrical control system, and the second bus network access unit is a linear bus network access unit connected to the bus network access unit.

Optionally, the determining, according to a message of a connection port of a second bus network access unit connected to the bus network access unit and received by at least one of the first, second, third, and fourth ports, an ingress and egress property of the connection port includes:

if the at least one port receives a message indicating that the port number is 1 in the continuous periods of the first scanning period, the second scanning period, the third scanning period and the fourth scanning period, determining that a connection port of a second bus network access unit is an inlet, wherein the port numbers of the first port, the second port, the third port and the fourth port of the bus network access unit are respectively 1-4;

and if the at least one port receives messages indicating that the port number is 3 during the continuous first scanning period, the second scanning period, the third scanning period and the fourth scanning period, determining that the connection port of the second bus networking unit is an outlet.

According to one aspect of the disclosure, a transmission line electrical control system is provided, which comprises a first bus network access unit and a second bus network access unit which are connected, wherein the first bus network entry unit and the second bus network entry unit each comprise a first, a second, a third and a fourth port, and a controller, wherein, the controller of the first bus network access unit determines the inlet and outlet properties of the connection port according to the message of the connection port of the second bus network access unit received by at least one of the first, second, third and fourth ports of the first bus network access unit, determining the signal flow direction in the second bus network access unit according to the inlet and outlet properties of the connection port of the second bus network access unit, and if the signal flow direction is not consistent with the preset conveying direction corresponding to the second bus network access unit, outputting prompt information.

Optionally, the output prompt message includes at least one of:

sending a notification message to a cloud platform server for controlling the transmission line electrical control system, so that the cloud platform server displays a connection error or sends a voice prompt of the connection error;

the alarm lamp arranged on the first bus network access unit is lightened;

Optionally, the first bus network access unit is one of a plurality of serially connected linear bus network access units in the transmission line electrical control system, and the second bus network access unit is another linear bus network access unit connected to the first bus network access unit.

Optionally, the bus network access unit is a transfer machine bus network access unit in the conveyor line electrical control system, and the second bus network access unit is a linear bus network access unit connected to the first bus network access unit.

Optionally, the determining, according to a message of a connection port of a second bus network access unit received by at least one of the first, second, third, and fourth ports of the first bus network access unit, an ingress and egress property of the connection port includes:

if the at least one port receives a message indicating that the port number is 1 in the continuous periods of a first scanning period, a second scanning period, a third scanning period and a fourth scanning period, determining that the connection port is an inlet, wherein the port numbers of the first port, the second port, the third port and the fourth port of the bus network access unit are respectively 1-4;

and if the at least one port receives messages indicating that the port number is 3 during the continuous first scanning period, the second scanning period, the third scanning period and the fourth scanning period, determining that the connection port is an outlet.

In the embodiment of the present disclosure, a bus network access unit detects an access property of a connection port of an adjacent bus network access unit connected to the bus network access unit, determines a signal flow direction in a second bus network access unit according to the access property, and outputs a prompt message when the signal flow direction is inconsistent with a predetermined conveying direction corresponding to the second bus network access unit. By the method, when the bus network access units are assembled into the electric control system of the transmission line on site, once the bus network access units are assembled in error, prompt information is output immediately, so that the phenomenon that the site deployment time is prolonged due to the error assembly is avoided, and the purpose of reducing the deployment of the electric control system of the transmission line is achieved.

Drawings

The foregoing and other objects, features, and advantages of the disclosure will be apparent from the following description of embodiments of the disclosure, which refers to the accompanying drawings in which:

FIG. 1 is an illustration of a transmission line at a site according to one embodiment of the present disclosure.

Fig. 2 is a schematic diagram of the overall structure of a transmission line and its electrical control system according to one embodiment of the present disclosure.

Fig. 3A is a physical block diagram of a bus networking unit according to one embodiment of the present disclosure.

Fig. 3B is a logical structure diagram of a bus networking unit according to one embodiment of the present disclosure.

FIG. 4A is an illustration of a linear transport segment according to one embodiment of the present disclosure.

Fig. 4B is an illustration of a transfer conveyor transport section according to one embodiment of the present disclosure.

Fig. 5A is a connection diagram of a linear bus networking unit when properly assembled according to an embodiment of the disclosure.

Fig. 5B is a connection diagram of a linear bus networking unit during misassembly according to an embodiment of the disclosure.

Fig. 6A is a connection diagram of a linear bus networking unit when properly assembled according to an embodiment of the disclosure.

Fig. 6B is a connection diagram of a linear bus networking unit during misassembly according to an embodiment of the disclosure.

Fig. 7 is a flow chart of a method of deploying a transmission line electrical control system according to one embodiment of the present disclosure.

Fig. 8 is a specific block diagram of a bus networking unit according to an embodiment of the present disclosure.

Detailed Description

The present disclosure is described below based on examples, but the present disclosure is not limited to only these examples. In the following detailed description of the present disclosure, some specific details are set forth in detail. It will be apparent to those skilled in the art that the present disclosure may be practiced without these specific details. Well-known methods, procedures, and procedures have not been described in detail so as not to obscure the present disclosure. The figures are not necessarily drawn to scale.

Background logistics sorting and ex-warehouse of modern logistics merchants commonly use conveyor line 100, as shown in fig. 1. The conveyor line 100 is the sum of all conveying devices such as a conveyor belt, a conveyor, and the like that complete the conveyance of the articles. In the area surrounding the warehouse, the production workshop and the packaging workshop, a conveyor chain consisting of a plurality of belt conveyors, roller conveyors and the like is arranged, and the conveyor chain is connected end to form a continuous conveyor line 100. Since the transmission line requires not only the physical equipment used for the actual transmission but also the transmission of the electrical control signals controlling the transmission line, there is also a corresponding electrical control system in the transmission line (inside the transmission line in fig. 1).

The electrical control system of the conveyor line 100 which is used in a large amount in the market at present adopts a Programmable Logic Controller (PLC) for centralized control, and has the main defects of single-point or multi-point control, complex wiring, difficult field deployment, easy occurrence of assembly errors and difficult quick shop opening. Another kind of electric control system of improved transfer line 100 adopts the singlechip, has just solved the problem that PLC is with high costs, and the shortcoming still is the field deployment difficulty, appears assembling mistake easily, is unfavorable for opening a shop fast.

Thus, to overcome the above problems, a technique has emerged for dividing the conveyor line 100 into a segmented conveyor segment 102, as shown in fig. 4A-B. The conveyor segments 102 are connected end to end, and various conveyor lines 100 are built as building blocks according to the field requirements. The conveyor section 102 shown in fig. 4A is called a straight conveyor section, and is characterized in that only left and right directions can be connected with other conveyor sections 102, and the conveyor section is generally used for conveying without changing the conveying direction. The conveying section 102 shown in fig. 4B is called a transfer conveyor conveying section, and is characterized in that other conveying sections 102 can be connected in four directions, namely front, back, left and right directions, and are generally used for conveying in a changed conveying direction, the conveying section is in a cross shape when being opened, and interfaces are arranged in the four directions, namely the front, back, left and right directions and are used for connecting other linear conveying sections in the four directions. Because other conveying sections can be connected in all four directions, when the goods need to change the transmission direction, the conveying sections of the transfer machine are transferred to other directions. The conveying section of the transfer machine can only be connected with the linear conveying section.

In each conveyor section 102 of the conveyor line 100 there is a bus network entry unit 110 as an electrical control part. The bus network access unit 110 may adopt a Controller Area Network (CAN) bus network access unit, and the electrical control system built in this way realizes electrical communication through the CAN, which is also a main communication form of the electrical control system of the current transmission line. Those skilled in the art will be able to conceive of other forms of communication for the electrical control system of the transmission line, and thus other bus networking units.

The bus entry unit 110 is internal to the transport section 102 and is not shown in fig. 1 and 4A-B. Since it is the electrical control portion of the transport section 102, its shape also conforms to the shape of the transport section 102 in which it is located. The bus network access units 110 in the linear transport section are linear bus network access units, and only left and right directions can be used for connecting with the bus network access units 110 in the adjacent transport section 102. The bus access unit 110 in the transfer section is a transfer bus access unit, and four directions, front, rear, left, and right, may be used to connect to the bus access unit 110 in the adjacent transfer section 102. Fig. 1 shows a schematic view of the overall topology of a conveyor line 100. In fig. 1, the conveyor line 110 is divided into conveyor sections 102, each conveyor section has a bus networking unit 110 as an electrical control part, and all the bus networking units 110 are connected in the order of the corresponding conveyor line 110 to form an electrical control system 119. The electrical control system 119 is the electrical control portion of the overall delivery line 110. It should be understood that although the conveying segments 110 are all connected linearly in sequence in fig. 1, in fact, due to the existence of the transfer conveyor conveying segments, it may happen that the conveying segments 110 extend in other directions (for example, some conveying segments 110 extend in the up-down direction).

In each transport section 102 there may be some control units 113, which are connected to the bus networking unit 110 of that transport section 102, are connected to the entire electrical control system 119 via the bus networking unit 110, and communicate with the control units 113 in the other transport sections 102. The bus network entry unit 110 in fact functions as an interface for the network-wide control units 113 to communicate with each other, so that these control units 113 transmit control signals between them and the transmission line 100 operates in coordination.

The electrical control system 119 in the transmission line 100 of fig. 1 includes a plurality of local area networks 114, each of which CAN114 is an oval portion located in one of the heavy line boxes of fig. 1. A first local area network 1141, a second local area network 1142, and a third local area network 1143 are shown, but those skilled in the art will appreciate that the electrical control system 119 may comprise other numbers of local area networks, such as 2, 4, 5, etc.

The lan may be a Controller Area Network (CAN), which is one of the field buses that are widely used internationally. Within a CAN, messages for one node are broadcast to all other nodes in the CAN. Thus, it CAN be said that messages within one CAN are all sent over the same CAN bus to all nodes within that CAN. And messages in different CAN buses are sent by different CAN buses.

Since the transmission line may have a length of several kilometers, and may include several thousands or even several tens of thousands of bus access units 110, and the coverage distance of a lan cannot reach such a length, the embodiment of the present disclosure adopts a form of serially connecting a plurality of lans 114, wherein two adjacent lans 114 are connected by a routing bus access unit 112. The routing bus network entry unit 112 belongs to two adjacent lans 114 at the same time, and is responsible for forwarding (broadcasting) messages from one lan 114 to the other lan 114. Since the two lans 114 transmit messages on different buses, it is generally desirable for the routing bus networking unit 112 to be able to connect both buses simultaneously and to be able to forward messages on one bus to the other. The routing bus networking unit 112 shown in fig. 1 includes C4, C8, and C11, where CX is an identifier of the xth bus networking unit in the figure.

In addition to the routing bus access unit 112, another type of bus access unit 110 is an internal bus access unit 111, i.e. a unit within a local area network 114 that is not a routing bus access unit 112. Because the same bus is used to transmit messages within one LAN 114, it is not required that messages on one LAN 114 be forwarded to another LAN 114. The internal bus networking unit 111 shown in fig. 1 includes C1, C2, C3, C5, C6, C7, C9, and C10.

The detailed structure of the bus networking unit 110 according to an embodiment of the present disclosure is described in detail below with reference to fig. 3A. As shown in fig. 3A, the bus networking unit 110 includes: a first bus 121, a second bus 122, a first bus transceiver 123, a second bus transceiver 124, a first port 131, and a plurality of variable connection ports 130 including a second port 132, a third port 133, and a fourth port 134. At least one of the plurality of variable connection ports 130 may be connected to either one of the first bus 121 and the second bus 122, or may be disconnected from both of these buses. As described above, when the bus network access unit 110 is used as the routing bus network access unit 112, different buses need to be connected, and at this time, one of the second port 132, the third port 133, and the fourth port 134 can be connected to the second bus 122, and since the first port 131 is always connected to the first bus 121, the purpose of connecting different buses is achieved. When the bus network access unit 110 is used as the internal bus network access unit 111, it is necessary to connect to the same bus, and at this time, the second port 132, the third port 133, and the fourth port 134 can be connected to the first bus 121, and since the first port 131 is always connected to the first bus 121, the purpose of connecting to the same bus is achieved.

Although the plurality of variable connection ports 130 are exemplarily described above as including the second port 132, the third port 133, and the fourth port 134, in fact, other numbers of ports may be included, for example, the fifth port, the sixth port, and the like may also be included as needed, and only the second port 132, the third port 133, and the like may also be included.

The first bus transceiver 123 is coupled to the first bus 121 for communicating with the first bus transceiver 123 of the other bus networking units 110 in the electrical control system 119 to establish a first local area network communication. The second bus transceiver 124 is connected to the second bus 122 for communicating with the second bus transceiver 124 of the other bus networking units 110 in the electrical control system 119. It should be noted that although fig. 2 shows that a plurality of bus access units 110 are connected in sequence in each lan (for example, the bus access unit C1 is connected to the bus access unit C2, and the bus access unit C2 is connected to the bus access unit C3), in practice, after a message is sent by one bus access unit 110 through its first bus transceiver 123 or second bus transceiver 124, the message can be received by both the first bus transceiver 123 or second bus transceiver 124 of the other bus access unit 110 connected to the first bus or second bus. Sending a message can be considered a broadcast as long as it is connected to a bus. Therefore, in fig. 1, if the bus networking unit C2 sends a message, since the bus networking units C1, C3, C4 are all connected to the first bus 121, they all receive the message, i.e. the message is broadcast to the bus networking units C1, C3, C4.

As shown in fig. 3A, the first port 131 is connected to the first bus 121. At least one variable connection port 130 of the plurality of variable connection ports 130 is connected to one of the first bus 121 and the second bus 122 or is not connected to both of the first bus 121 and the second bus 122, so that the bus network unit 110 has different types, i.e., a linear type bus network unit and a transfer machine bus network unit, which will be described in detail later.

Fig. 3B is a logical block diagram of bus networking unit 110 according to one embodiment of the present disclosure. The logical structure diagram obscures the internal connection relationship in the bus networking unit 110 in fig. 3A, regarding the internal connection relationship as a black box, regarding only the bus networking unit 110 as having four logical ports 131-. The

logic ports

131 and 134 may be signal inlets or signal outlets. In fig. 3B, the first port 131 is an entrance of a signal, and the third port 133 is an exit of the signal. The entry means that if an input signal is supplied from a port connected to the first bus 121 or the second bus 122, the port is an entry. The logical outlet means that if a port is connected to the first bus 121 or the second bus 122 and a signal is output from the bus to the port, the port is an outlet. Since the first port 131 is fixedly connected to the first bus 121, it can only be an inlet. The second port 132, the third port 133, and the fourth port 134 may be connected to the first bus 121, or may be connected to the second bus 122, and serve as outlets because they form a signal outlet with the logical inlet of the first port 131 when the second port is connected to the first bus 121; when it is connected to the second bus 122, which is now connected to a new bus, it is its input signal, i.e. it serves as an entry. Therefore, in the bus network unit 110, the first port 131 is an inlet, and each of the second, third and

fourth ports

132 and 134 can be an inlet or an outlet.

The linear bus network access unit and the transfer machine bus network access unit are described in detail below.

As shown in fig. 3B, the bus network unit 110 is a straight-line type bus network unit if only the first port 131 and the third port 133 are used and the second port 132 and the fourth port 134 are not used (the second port 132 and the fourth port 134 are shielded by physical devices, for example, are closed by a cover plate). At this time, the first port 131 is fixedly connected to the first bus 121, which must be an inlet, and the third port 133 can be connected only to the first bus 121 as an outlet, because if it is connected to the second bus 122, a signal flowing from the first port 131 cannot flow out, and thus, it can be connected only to the first bus 121 as an outlet for a signal flowing into the first port 131. Any of the second port 132 and the fourth port 134 is not connected to the first bus line 121 or the second bus line 122.

As shown in fig. 6A, the bus network access unit B is a transfer bus network access unit in which the first port 131, the second port 132, the third port 133, and the fourth port 134 are all available. A first port 131 is fixedly connected to the first bus 121 and is necessarily an inlet, and a second port 132, a third port 133 and a fourth port 134 may be connected to the first bus 121 as an outlet and may be connected to the second bus 122 as an inlet. In fig. 6A, the first port 131 of the bus network entry unit B is fixedly an inlet, and is connected to the third port 133 of the bus network entry unit a, which is an outlet. And its second, third and

fourth ports

132, 133, 134 may be either inlet or outlet ports. The second port 132 is connected to the first port 131 of the bus network entry unit E as an inlet, and is an outlet. The third port 133 is connected to the first port 131 of the bus network unit C as an inlet, and is an outlet. The fourth port 134 is connected to the third port 133 of the bus line networking unit D as an outlet, and is an inlet. Fig. 6A shows a case where the second port 132, the third port 133, and the fourth port 134 of the transfer machine bus network access unit are all connected with other bus network access units, and actually, they need not all be connected with other bus network access units, and some of them may not be connected.

It should be noted that the linear bus access units may be connected to the linear bus access units, such as the bus access units a-C in fig. 5A-B in series, or may be connected to the transfer bus access units, such as the bus access unit A, C, D, E in fig. 6A-B in series with the transfer bus access unit A, C, D, E. However, the transfer machine bus network access unit can be connected only to the linear bus network access unit, and the linear bus network access units A, C, D, E are connected to the bus network access unit B in fig. 6A to B.

In the above-described solution for constructing the electrical control system 119 of the conveyor line 100 from the bus network entry unit 110, there is a restriction that the directionality of the port connections of the bus network entry unit 110 corresponds to a predetermined conveying direction (e.g., a cargo conveying direction on the conveyor line 100). The signal flow direction in each bus network entry unit 110 is from the inlet to the outlet, but if the predetermined transmission direction is preferably opposite to the signal flow direction in the transmission segment 102 in which the bus network entry unit 110 is located, the bus network entry unit cannot normally operate. For example, in fig. 5A, the first port 131 of the bus network entry unit a is an inlet, the third port 133 is an outlet, and the internal signal flow direction is from the first port 131 to the third port 133, i.e., from left to right in fig. 5A, and the predetermined conveying direction of the conveying section 102 in which the internal signal flow direction is located is also from left to right, and the two are identical, so the installation is correct. Similarly, the bus access unit B, C of fig. 5A is installed correctly. However, for the bus network access unit a in fig. 5B, the first port 131 is an outlet, the third port 133 is an inlet, the internal signal flow direction is from the third port 133 to the first port 131, that is, from right to left in fig. 5B, the predetermined transmission direction of the transmission segment 102 where the internal signal flow direction is from left to right is opposite to the predetermined transmission direction of the first port, and the installation is incorrect, which may cause the transmission direction of the actually required control signal to be inconsistent due to assembly. If the assembly is wrong and cannot be perceived during assembly, repeated assembly is caused, and the field deployment time is prolonged.

The embodiment of the disclosure provides a scheme which can identify whether the signal flow direction caused by assembly is consistent with the preset conveying direction on site during assembly and prompt in time when the signal flow direction is inconsistent with the preset conveying direction.

Fig. 7 shows a flow diagram of a method of delivery line electrical control system deployment, according to one embodiment of the present disclosure. The electrical control system of the conveyor line is the electrical control system 119 of the conveyor line 100 of fig. 2. The electrical transmission line control system deployment means that ports (first to fourth ports) of each adjacent bus network-entry unit 110 constituting the electrical control system 119 are connected to connect the bus network-entry units 110 to form the electrical control system 119. The embodiment of the disclosure can prompt if an error occurs in the process of port connection, thereby avoiding connection errors.

The method is performed by a first bus access unit in the electrical control system 119, and the object of the execution is a second bus access unit connected to the first bus access unit.

If the electrical control system 119 has a transfer bus access unit, the typical topology shown in fig. 6A-B would appear around it, i.e., each port of one transfer bus access unit is connected to one other straight bus access unit. In other locations, the typical topology shown in fig. 5A-B may occur, i.e., multiple linear bus access units connected in series. In the two different topologies, the first bus networking unit and the second bus networking unit are selected in a slightly different manner.

For a plurality of serially connected linear bus network access units in the electrical control system 119, as shown in fig. 5A-B, the linear bus network access units are sequentially used as the first bus network access unit, and other linear bus network access units connected to the first bus network access unit are used as the second bus network access unit. Therefore, whether the linear bus network access units connected with the plurality of linear bus network access units in series have connection errors or not can be checked, and the purpose of exhaustive inspection is achieved. For example, in fig. 5A-B, the bus networking unit a is first used as a first bus networking unit, and the bus networking unit B connected to the first bus networking unit is used as a second bus networking unit; then, the bus network access unit B is used as a first bus network access unit, and the bus network access unit A, C connected with the first bus network access unit B is used as a second bus network access unit; and then the bus network access unit C is used as a first bus network access unit, and the bus network access unit B connected with the first bus network access unit C is used as a second bus network access unit, so that the purpose of exhaustive troubleshooting is achieved.

As shown in fig. 6A-B, for the transfer machine bus network access unit in the electrical control system, the transfer machine bus network access unit is used as the first bus network access unit, and the straight-line bus network access unit connected to the first bus network access unit is used as the second bus network access unit. For example, in fig. 6A-B, the bus access unit B is made the first bus access unit, and the bus access units A, C, D, E connected thereto are made the second bus access units, respectively.

As shown in fig. 7, the method includes:

step 710, in a deployment phase, detecting, by a first bus network access unit, an access property of a connection port of a second bus network access unit connected to the first bus network access unit;

step 720, determining the signal flow direction in the second bus network access unit according to the inlet and outlet properties of the connection port of the second bus network access unit;

and step 730, if the signal flow direction is not consistent with the preset conveying direction corresponding to the second bus network access unit, outputting prompt information.

The deployment phase of step 710 refers to a phase of interconnecting bus networking units through ports to form a transmission line electrical control system. The connection port refers to a port used for connecting with the first bus networking unit in the ports of the second bus networking unit. The inlet-outlet property refers to whether an inlet or an outlet is provided.

In the deployment phase, the bus network access units connected with each other do not know which bus network access unit is connected with each other initially, the first, second, third or fourth ports of the bus network access units are connected with each other, and the other port is an inlet or an outlet. It informs of the above information through a messaging mechanism. In this mechanism, multiple sequential scan periods are set. In each scan period, the connection relationship between each port in each bus networking unit 110 and the first bus 121 or the second bus 122 is set, and each port sends a message according to a predetermined rule, where the message indicates the port number and the connection relationship between the port and the first bus 121 or the second bus 122. When the port of the other bus access unit 110 connected to the port receives the message, the port recognizes the information of the connected bus access unit 110, the connected port number, whether the port is a logical entry or an exit, and the like, thereby automatically obtaining the connection status of each port of the bus access unit 110 and obtaining the entry and exit properties of the connection port required in step 710.

In the above mechanism, on one hand, each bus network access unit 110 is used as a message sender, and each port of the bus network access unit is connected to the first bus 121 or the second bus 122 inside the bus network access unit according to a predetermined rule in a plurality of sequential scanning periods and sends out a message, i.e. a status notification, so as to notify the own identification, the port number of each port (the port numbers corresponding to the first, second, third, or fourth ports are respectively 1-4), and the bus number of each port connection (the bus number of the first bus is 1, and the bus number of the first bus is 2), so as to allow the bus network access unit 110 connected to discover its own identity and port information. On the other hand, each bus network access unit 110 serves as a message receiver, and receives the message sent by the bus network access unit 110 connected to itself, so as to know the identity and port information of the bus network access unit 110 connected to itself. The following describes the procedures of transmission and reception, respectively.

Firstly, a detecting and starting bus network-accessing unit is set in the electric control system of the transmission line, which sends out control information of scanning initiator subtype to start the above-mentioned information sending and detecting of all bus network-accessing units in the whole electric control system of the transmission line. This is on the one hand to coordinate the actions of the bus access units 110 in the entire electrical control system 119, so that the above message notification and detection can be synchronized (since only one of the two connected bus access units 110 performs message notification and the other receives and detects messages, and can coordinate the operations), and on the other hand to provide a uniform time reference for the first, second, third and fourth scanning periods mentioned below.

The startup-detecting bus network unit is a bus network unit 110 preset in the electrical control system 119, such as the bus network unit C5 in fig. 2. The method includes the steps that a control message of a scanning initiator subtype is sent by the whole network, so that after the bus networking unit 110 of the whole network receives the control message, first, second, third and fourth scanning periods mentioned later are set based on the time when the control message is received or a timestamp in the control message, different connection states of ports and the first bus 121 or the second bus 122 are set in the first, second, third and fourth scanning periods, different messages are sent, other bus networking units 110 connected with the ports receive the messages, and adjacent bus networking units 110 and port connection states are identified based on the messages.

The control message is a message that is specified in advance (for example, by a protocol) for transmitting a network-wide control instruction throughout the electrical control system 119. Such network-wide control commands are not limited to scan initiation, and other types of control, such as timing control, may be performed. Control messages for different types of control may be distinguished by subtype. The subtype may be embodied as a field of the control message. When a bus access unit 110 receives a control message, it looks at the field indicating the subtype, and if the field indicates the scan start subtype, it starts to prepare for the first, second, third, and fourth scan periods mentioned later, sets the connection status of different ports to the first bus 121 or the second bus 122, and sends different messages.

For the linear bus network access unit, the first port 131 is connected to the first bus 121 and the third port 133 is connected to the second bus 122 in the consecutive first scan period, second scan period, third scan period, and fourth scan period.

This is because the linear bus networking unit only has the first port 131 and the third port 133 operating during actual operation, and also has the first port 131 connected to the first bus 121 and the third port 133 connected to the second bus 122 during normal operation. In this way, if the connection relationship between the port and the bus is set as in actual use, the other bus network access unit 110 connected to the port can be clearly notified of whether the other port is the first port 131 of its own or the third port 133 of its own in the transmitted message.

For the transfer machine bus network access unit, in the first scanning period, the first port 131 is connected to the first bus 121; connecting a second port 132 to the second bus 122 during the second scan period; during the third scan period, connecting a third port 133 to the second bus 122; in the fourth scan period, the fourth port 134 is connected to the second bus line 122.

In the subsequent links of message reception and detection, it can be known that the first scanning period is used to identify the ingress and egress property of the first port, the second scanning period is used to identify the ingress and egress property of the second port, and so on, so that the connection states of the ports in different scanning periods can be clearly separated according to the way that each corresponding port is connected to the corresponding bus in each scanning period, thereby distinguishing the ports from the ingress and egress properties of the ports.

Then, for the linear bus network access unit, the first bus transceiver and the second bus transceiver are used for sending messages, and the identification of the bus network access unit, the bus number corresponding to the transceiver and the port number connected to the bus are informed through each port connected with the first bus transceiver and the second bus transceiver.

The identification of a bus access unit is a unique identifier assigned to the bus access unit, which uniquely distinguishes the identification "who" of the bus access unit. In this message, this identifier is used to notify other bus access units 110 connected to the current bus access unit 110 of which bus access unit 110 port is connected to the other.

The bus number corresponding to the transceiver refers to whether the transceiver is connected to the first bus 121 or the second bus 122. For example, the first bus 121 may be represented by 1, and the second bus 122 may be represented by 2.

The port number to which the bus is connected refers to which port of the first port 131, the second port 132, the third port 133, and the fourth port 134 the bus is connected. For example, the first port 131 may be denoted by 1, the second port 132 may be denoted by 2, the third port 133 may be denoted by 3, and the fourth port 134 may be denoted by 4.

For the linear bus networking unit, since the first port 131 is connected to the first bus 121 and the third port 133 is connected to the second bus 122, the first bus transceiver 123 is utilized to send a message through the first port 131 connected to the first bus transceiver 123, where the message includes the identifier of the bus networking unit, the bus number 1 (because the first bus 121 is connected to the first bus transceiver 123), and the port number 1 (because the first port 131 is connected to the first bus 121); the identification of the bus access unit, bus number 2 (since the second bus 122 is connected to the second bus transceiver 124), port number 3 (since the third port 133 is connected to the second bus 122) is notified by the second bus transceiver 124 via a message sent via the third port 133 connected to the second bus transceiver 124.

For the transfer machine bus network access unit, in the first scanning period, the second scanning period, the third scanning period and the fourth scanning period, the connection relationship between each port and the first bus 121 or the second bus 122 has different setting modes, and at this time, the notification of the port number in the message is difficult, so that only the identification of the bus network access unit and the bus number corresponding to the bus transceiver, namely the first bus 121 or the second bus 122, can be notified in the message. Then, the bus network access unit 110 that receives the message sends a port query request to the current bus network access unit 110, and the current bus network access unit 110 replies to the request, where the reply indicates the port number of the bus connection. In order to distinguish the message from the transfer device bus access unit from the message from the linear type bus access unit, the message from the transfer device bus access unit includes a specific flag indicating that the message is from the transfer device bus access unit. Thus, if the message is sent by the first bus transceiver 123, the message contains the identification of the bus access unit, the bus number 1, and a specific flag bit, where the bus number 1 indicates that the first bus transceiver 123 corresponds to the first bus 121, and the specific flag bit indicates that the message is sent by the transfer bus access unit, and is, for example, 0. If the message is sent by the second bus transceiver 124, the message contains the identification of the bus access unit, bus number 2, and a specific flag, where bus number 2 indicates that the second bus transceiver 124 corresponds to the second bus 122.

The above describes the process of the bus networking unit 110 sending a message for notification, and the following describes the process of receiving the message for detection.

For a port of the bus network access unit 110, if the port receives messages notifying the identifier, the bus number 1 and the port number 1 of the bus network access unit during the continuous first scanning period, the second scanning period, the third scanning period and the fourth scanning period, it is determined that the port is connected to a linear bus network access unit, the identifier of the bus network access unit is recorded, the port to be detected is connected to the first port of the linear bus network access unit, and the first port is an inlet. If the port receives messages informing the identification, the bus number 2 and the port number 3 of the bus networking unit during the continuous first scanning period, the second scanning period, the third scanning period and the fourth scanning period, the port is determined to be connected to a linear bus networking unit, the identification of the bus networking unit is recorded, the port is connected to a third port of the linear bus networking unit, and the third port is an outlet.

As described above, the message for notifying the linear bus network access unit has the identification of the bus network access unit, the bus number 1 or 2 corresponding to the transceiver, and the port number 1 or 3 to which the bus is connected, and there is no specific flag (e.g., 0), whereas the message for notifying the transfer bus network access unit has the identification of the bus network access unit, the bus number 1 or 2 corresponding to the transceiver, and the specific flag, and therefore, it is possible to determine whether a linear bus network access unit or a transfer bus network access unit is connected, based on whether there is a specific flag.

If no specific flag bit exists, a linear bus networking unit is connected, and it can be further determined which port of the linear bus networking unit is connected, and the port is an inlet or an outlet. Specifically, if a message containing the identifier of the linear bus networking unit, the bus number 1, and the port number 1 is received, it can be determined from the port number 1 that the first port 131 of the linear bus networking unit is connected. Since the first port 131 is connected to the first bus 121, it functions as a signal flow inlet and is thus an inlet. If a message containing the id of the linear bus access unit, the bus number 2, and the port number 3 is received, it can be determined from the port number 3 that the third port 133 of the linear bus access unit is connected. Since the third port 133 is connected to the second bus 122, it functions as an outlet and thus is an outlet.

Since the ports of the linear bus networking unit in the first scan period, the second scan period, the third scan period, and the fourth scan period are all the same as the connection state of the bus, the above process may be performed at any time in the first scan period, the second scan period, the third scan period, and the fourth scan period, but in one embodiment, it may be specified that the above process is performed only in the first scan period, or that the above process is performed in any other scan period.

For a port of the bus network access unit 110, if the port receives a message notifying the identification, bus number 1, and specific flag bit of the bus network access unit in the first scanning period, it is determined that the port is connected to a transfer machine bus network access unit, and the identification of the bus network access unit is recorded, the port is connected to a first port of the linear bus network access unit, and the first port is a logical entry; if the port receives a message informing the identification of the bus network access unit, the bus number 1 or 2 and a specific zone bit in the second scanning period and sends a port query request, the received port number is 2, the identification of the bus network access unit is recorded, the port is connected to a second port of the linear bus network access unit, and the second port is a logic outlet under the condition of the bus number 1; in case of bus number 2, the second port is a logical entry; if the port receives a message informing the identification of the bus network access unit, the bus number 1 or 2 and a specific zone bit in the third scanning period and sends a port query request, the received port number is 3, the identification of the bus network access unit is recorded, the port is connected to a third port of the linear bus network access unit, and the third port is an outlet under the condition of the bus number 1; in case of bus number 2, the third port is an entry; if the port receives a message informing the identification of the bus access unit, the bus number 1 or 2 and a specific zone bit in the fourth scanning period and sends a port query request, the received port number is 4, the identification of the bus access unit is recorded, the port is connected to a fourth port of the linear bus access unit, and the fourth port is an outlet under the condition of the bus number 1; in the case of bus number 2, this fourth port is an entry.

In the above case, if the received messages all contain the specific flag, it is described that one transfer bus access unit is connected to the port, and then it is necessary to determine which port of the transfer bus access unit is connected, and whether the port is an ingress or an egress, in conjunction with the case where four scan period transfer bus access units transmit messages.

If the port receives the message informing the id of the bus access unit, the bus number 1, and the specific flag bit in the first scan period, since the first bus 121 is fixedly connected to the first port 131, it is possible to directly determine that the first port 131 of the linear bus access unit is connected without sending an inquiry request. Further, since the first port 131 is connected to the first bus 121, it is always an entrance of the control signal.

If the port receives a message notifying the id of the bus access unit, the bus number 1 or 2, and the specific flag bit in the second scan period, and after sending the port query request, the received port number is 2, it may be determined that the port is connected to the second port 132 of the linear bus access unit. In the case of bus number 1, the second port 132 is connected to the first bus 121, and on the first bus 121, a control signal flows in from the first port 131, and at this time, it always flows out from the second port 132, and thus it is an outlet. In the case of bus number 2, the second port 132 is connected to the second bus 122, and no signal flows on the first bus 122, and this time, it is always the second port 132 and thus the entry.

The analysis process after the port receives the message informing the bus access unit of the identifier, the bus number 1 or 2 and the specific zone bit in the third and fourth scanning periods is similar to the analysis process in the second scanning period, and thus is not repeated.

In the electrical control system, in both the case of a plurality of serially connected linear bus network access units as shown in fig. 5A-B and the case of a transfer machine bus network access unit as shown in fig. 6A-B, one linear bus network access unit is connected to each port, and the second bus network access unit to be detected is a linear bus network access unit. Therefore, in conjunction with the above procedure, it can be determined whether the connection port of the second bus network entry unit is an ingress or an egress only by the port number indicated in the received message. That is, if the first bus network entry unit receives a message indicating port number 1 of the second bus network entry unit during consecutive first scan period, second scan period, third scan period, and fourth scan period, determining that a connection port of the second bus network entry unit is an entry, where the bus network entry unit has first, second, third, and fourth ports, and the port numbers are 1-4, respectively; and if the first bus network access unit receives the message indicating the port number 3 of the second bus network access unit in the continuous periods of the first scanning period, the second scanning period, the third scanning period and the fourth scanning period, determining that the connection port of the second bus network access unit is an exit.

In step 720, the signal flow direction in the second bus network access unit is determined according to the port property of the connection port of the second bus network access unit.

The signal flow direction in each bus network unit is from the inlet to the outlet of the bus network unit. Therefore, the signal flow direction in the second bus network access unit can be determined by determining the inlet and outlet properties of the connection port of the second bus network access unit. Specifically, if the determined connection port of the second bus network access unit is an inlet, the other port of the second bus network access unit except the connection port is an outlet, the signal flow direction is from the inlet to the outlet, and the signal flow direction is away from the first bus network access unit at this time. If the determined connection port of the second bus network access unit is an exit, the other port of the second bus network access unit except the connection port is an entrance, the signal flow direction is an entrance flow direction to an exit, and the signal flow direction is a direction towards the first bus network access unit at this time.

Assuming that the bus access unit B in fig. 5A is a first bus access unit, and the bus access units a and C are second bus access units, for the first port 131 of the bus access unit B, it is detected through the message of the bus access unit a that the bus access unit a is connected to itself as the third port 133, and the third port 133 is an exit, it is determined that the signal flow direction in the bus access unit a is from left to right in fig. 5A. For the third port 133 of the bus network entry unit B, it is detected through the message of the bus network entry unit C that the first port 131 is connected to the bus network entry unit C, and the first port 133 is an entry, it is determined that the signal flow in the bus network entry unit C is from left to right in fig. 5A.

In step 730, if the signal flow direction is not consistent with the predetermined conveying direction corresponding to the second bus network access unit, a prompt message is output.

The conveying direction of each conveying section 102 of the conveying line 100 is predetermined, which can be obtained by looking up the conveying line conveying pattern. As shown in fig. 5A, it is determined that the signal flow directions inside the bus network entry unit A, B, C are all from left to right, and the predetermined conveying directions of the conveying section 102 in which the signal flow directions are located are all from left to right, and the bus network entry unit A, B, C is correctly connected. However, in the bus network access unit a in fig. 5B, the internal signal flow is from right to left, and the predetermined transport direction of the transport section 102 in which the internal signal flow is located is from left to right, so that a connection error occurs, and a prompt message is output.

As shown in fig. 6A, it is determined that the signal flow direction inside the bus network access unit a is from left to right, the predetermined conveying direction of the conveying section 102 where the bus network access unit a is located is also from left to right, the bus network access unit a is correctly connected, and no prompt message is output; the signal flow direction in the bus network access unit C is from left to right, the preset conveying direction of the conveying section 102 in which the bus network access unit C is located is also from left to right, the bus network access unit C is correctly connected, and no prompt message is output; the signal flow direction in the bus network access unit D is from top to bottom, the preset conveying direction of the conveying section 102 where the bus network access unit D is located is from top to bottom, the bus network access unit D is connected correctly, and prompt information is not output; the signal flow direction inside the bus network access unit E is from top to bottom, the predetermined conveying direction of the conveying section 102 where the bus network access unit E is located is also from top to bottom, and the bus network access unit E is correctly connected and does not output prompt information. On the other hand, in the bus network access unit E shown in fig. 6B, the internal signal flow direction is from bottom to top, and the predetermined conveying direction of the conveying section 102 in which the internal signal flow direction is located is from top to bottom, so that the connection is wrong, and the prompt information is output.

The output prompt message may include at least one of:

the alarm lamp arranged on the first bus network access unit is lightened;

In the first case, a cloud platform server (not shown) is connected to each transmission line electrical control system through wires or wirelessly, and controls the deployment and operation of each electrical control system. And when the first bus network access unit detects a connection error, reporting to the cloud platform server. The cloud platform server is provided with a display for displaying connection error information to workers of the cloud platform, and the bus network access units which are connected in error are connected correctly by remote control of the workers, or the cloud platform server is provided with a loudspeaker for sending out a voice prompt of connection error to the workers of the cloud platform, and the bus network access units which are connected in error are connected correctly by remote control of the workers, and the like.

Under the second condition, when the first bus network access unit detects a connection error, the connection error is not reported to the cloud platform server, but an alarm lamp is arranged on the first bus network access unit, and the alarm lamp is lightened to remind field installers of the installation error and the installation should be carried out again.

Under the third condition, when the first bus network access unit detects that the connection is wrong, a loudspeaker is arranged on the first bus network access unit, and voice prompt is sent out through the loudspeaker to remind field installers of installation errors and reinstallation.

In the fourth case, the rotation direction is displayed by animation on an animation effect display area arranged on the first bus network access unit. An animation effect display area, such as a small display screen or a dynamic effect direction lamp, is arranged on the first bus network access unit. And if the signal flow direction is not consistent with the preset conveying direction corresponding to the second bus networking unit, determining the access property of the connecting port of the second bus networking unit under the condition that the preset conveying direction is taken as the signal flow direction in the second bus networking unit, and determining the port number (the first port, the second port, the third port or the fourth port) to be connected to the second bus networking unit according to the access property, thereby determining the rotation direction of the first bus networking unit (which direction should be rotated to ensure correct connection), and dynamically displaying on the animation effect display area. In the case of a display screen, the dynamic effect of the rotation can be displayed; in the case of a dynamic effect direction light, the dynamic effect direction light generally includes a plurality of small indicator lights arranged in a circular arc shape, and the rotation direction is distinguished by sequentially lighting the small indicator lights clockwise or counterclockwise.

It should be appreciated by those skilled in the art that while four ways of outputting a prompt message are listed above, other ways are also contemplated by those skilled in the art, all falling within the general concepts of the present disclosure.

In addition, in the embodiment of the disclosure, after the first bus network access unit receives the message, which is sent by the second bus network access unit and includes the identifier of the second bus network access unit, the connected bus number, and the connected port number, it is determined whether the signal flow direction is consistent with the predetermined transport direction, and whether the prompt information is output is determined, and besides, the identifier of the second bus network access unit, the connected bus number, and the connected port number may also be reported to the cloud platform server. Because each bus network access unit reports the identification of the bus network access unit connected with the bus network access unit, the connected bus number and the connected port number, the cloud platform server can generate the topology of the electric control system according to the information.

In addition, as shown in fig. 8, the bus networking unit 110 according to an embodiment of the present disclosure includes, in addition to the first bus 121, the second bus 122, and the first to fourth ports 131-134, a controller 191, where the controller determines an inlet and outlet property of a connection port of the second bus networking unit connected to the bus networking unit according to a message of the connection port received by at least one of the first, second, third, and fourth ports, and determines a signal flow direction in the second bus networking unit according to the inlet and outlet property of the connection port of the second bus networking unit, where if the signal flow direction is not consistent with a predetermined conveying direction corresponding to the second bus networking unit, a prompt message is output. That is, the flowchart shown in fig. 7 is generally implemented in the controller 191. Since the specific processes of the steps implemented by the controller 191 are described in detail in the foregoing with reference to the method embodiment, further description is omitted for brevity.

It should be understood that the embodiments in this specification are described in a progressive manner, and that the same or similar parts in the various embodiments may be referred to one another, with each embodiment being described with emphasis instead of the other embodiments. In particular, for the device embodiment, since it is substantially similar to the method described in the method embodiment, the description is simple, and the relevant points can be referred to the partial description of other embodiments.

It should be understood that the above description describes particular embodiments of the present specification. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

It should be understood that an element described herein in the singular or shown in the figures only represents that the element is limited in number to one. Furthermore, modules or elements described or illustrated herein as separate may be combined into a single module or element, and modules or elements described or illustrated herein as single may be split into multiple modules or elements.

It is also to be understood that the terms and expressions employed herein are used as terms of description and not of limitation, and that the embodiment or embodiments of the specification are not limited to those terms and expressions. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.

Claims

1. A method for deploying an electric control system of a transmission line, wherein the electric control system is formed by connecting bus networking units, and the method comprises the following steps:

and if the signal flow direction is not consistent with the preset conveying direction corresponding to the second bus network access unit, outputting prompt information.

2. The method of claim 1, wherein the output prompt information comprises at least one of:

the alarm lamp arranged on the first bus network access unit is lightened;

3. The method of claim 1, wherein for a plurality of serially connected linear bus networking units in the electrical control system, the linear bus networking units are sequentially used as the first bus networking unit, and other linear bus networking units connected with the first bus networking unit are used as the second bus networking unit.

4. The method according to claim 1, wherein for a transfer bus network access unit in the electrical control system, the transfer bus network access unit is used as the first bus network access unit, and a straight bus network access unit connected to the first bus network access unit is used as the second bus network access unit.

5. The method of claim 1, wherein the detecting, by the first bus networking unit, the port property of the connection port of the second bus networking unit connected to the first bus networking unit comprises:

6. The method of claim 5, wherein the determining the signal flow direction in the second bus network entry unit according to the port property of the connection port of the second bus network entry unit comprises:

7. The method of claim 5, wherein the message indicating port number 1 of the second bus networking unit further indicates a bus number of 1, wherein the bus networking unit has a first bus and a second bus, the bus numbers being 1-2, respectively; and the message of the second bus network access unit indicating the port number 3 also indicates that the bus number is 2.

8. The method of claim 7, wherein the message indicating port number 1, the message indicating port number 3 of the second bus network entry unit further indicates an identity of the second bus network entry unit;

the method further comprises the following steps: and reporting the identification, the bus number and the port number of the second bus network access unit received by the first bus network access unit to a cloud platform server, and generating the topology of the electrical control system by the cloud platform server.

9. The method of claim 1, wherein the bus access unit is a Controller Area Network (CAN) bus access unit.

10. A bus network access unit comprises a first port, a second port, a third port, a fourth port and a controller, wherein the controller determines the access property of a connection port according to a message of the connection port of a second bus network access unit connected with the bus network access unit and received by at least one of the first port, the second port, the third port and the fourth port, and determines the signal flow direction in the second bus network access unit according to the access property of the connection port of the second bus network access unit, wherein if the signal flow direction is not consistent with the preset conveying direction corresponding to the second bus network access unit, prompt information is output.

11. The bus networking unit of claim 10, wherein the output hint information comprises at least one of:

the alarm lamp arranged on the bus network access unit is lightened;

a loudspeaker arranged on the bus network access unit sends out voice prompt;

the bus network access unit is provided with an animation effect display area, and the animation effect display area is provided with an animation effect display rotating direction.

12. The bus networking unit of claim 10, wherein the bus networking unit is one of a plurality of serially connected linear bus networking units in the electrical control system, and the second bus networking unit is another linear bus networking unit connected to the bus networking unit.

13. The bus access unit of claim 10, wherein the bus access unit is a transfer machine bus access unit in an electrical control system, and the second bus access unit is a straight bus access unit connected to the bus access unit.

14. The bus networking unit of claim 10, wherein the determining the port access property of the connection port according to the message of the connection port of the second bus networking unit connected to the bus networking unit received by at least one of the first, second, third, and fourth ports comprises:

15. The bus network entry unit of claim 14, wherein the determining a signal flow direction in the second bus network entry unit according to the ingress and egress property of the connection port of the second bus network entry unit comprises:

16. The bus networking unit of claim 10, wherein the bus networking unit is a Controller Area Network (CAN) bus networking unit.

17. A transmission line electrical control system comprises a first bus networking unit and a second bus networking unit which are connected, wherein the first bus networking unit and the second bus networking unit respectively comprise a first port, a second port, a third port, a fourth port and a controller, the controller of the first bus networking unit determines the access property of the connection port according to a message of the connection port of the second bus networking unit received by at least one of the first port, the second port, the third port and the fourth port of the first bus networking unit, determines the signal flow direction in the second bus networking unit according to the access property of the connection port of the second bus networking unit, and outputs prompt information if the signal flow direction is inconsistent with a preset transmission direction corresponding to the second bus networking unit.

18. The conveyor line electrical control system according to claim 17, wherein said output prompt information includes at least one of:

the alarm lamp arranged on the first bus network access unit is lightened;

19. The conveyor line electrical control system according to claim 17, wherein the first bus networking unit is one of a plurality of serially connected linear bus networking units in the conveyor line electrical control system, and the second bus networking unit is another linear bus networking unit connected to the first bus networking unit.

20. The conveyor line electrical control system according to claim 17, wherein the bus network entry unit is a transfer machine bus network entry unit in the conveyor line electrical control system, and the second bus network entry unit is a straight bus network entry unit connected to the first bus network entry unit.

21. The conveyor line electrical control system according to claim 17, wherein said determining the port access property of a connection port of a second bus network element from messages received by at least one of said first, second, third and fourth ports of the first bus network element comprises:

22. The conveyor line electrical control system according to claim 17, wherein said determining a signal flow direction in the second bus network entry unit based on the port access property of the connection port of the second bus network entry unit comprises: