Standardized IO board of AFC equipment terminal for subway
By designing standardized AFC equipment terminal IO boards, the software adaptation problem caused by the differences in equipment IO boards in the subway system is solved, and the compatibility and stability between devices are improved.
Patent Information
- Application Number
- CN202411939535.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-03-28
AI Technical Summary
The IO boards of AFC equipment terminal equipment in the subway system are different, which leads to difficulties in software adaptation, increases the difficulty of development work, and reduces the operation efficiency and compatibility of software.
Design a standardized IO board for AFC equipment terminal for subways, including processor modules, power supply circuit modules, communication circuit modules, card swipe indicator light control circuit modules, etc. Each module is equipped with standard interfaces to achieve compatible connections with different device terminals, and uses a general logic chip to complete the protocol conversion.
It reduces the coupling of the system architecture, clarifies the system design interface, facilitates the search for fault information, improves the overall stability and security of terminal equipment, and realizes compatibility and adaptation with equipment from different line lines.
Smart Images
Figure CN119717651A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of subway terminal equipment, and in particular to a standardized IO board for an AFC equipment terminal used in a subway. Background Art
[0002] The subway system is a complex system. Although each terminal device is designed based on the same general design concept, due to the complexity of the system, many professional terminal devices need to be delivered to different professional manufacturers for production. Although unified specifications and standards are implemented, these standards can only standardize some large and key indicators and cannot cover every detail. As a result, compatibility issues will still arise.
[0003] Among them, in AFC professional terminal equipment, different line integrators and equipment suppliers lead to a wide variety of terminal equipment and different IO boards of the equipment.
[0004] During the process of standardized software adaptation, it was found that software adaptation was relatively difficult and a corresponding driver package needed to be made, which increased the difficulty of development work, increased the occupation of industrial computer system resources by standard software, reduced software operation efficiency, and reduced the compatibility of standardized software.
[0005] For these reasons, the AFC equipment terminal needs to be adapted and modified to a certain extent, among which the IO board is one of the most critical components, and the desire for its standardized transformation is the most urgent.
[0006] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention
[0007] The purpose of the present invention is to address the deficiencies of the prior art and thus provide a device with better adaptability, reduced coupling of system architecture, easier fault information search, and improved overall stability and security of terminal equipment.
[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a standardized IO board for an AFC equipment terminal for a subway, comprising a processor module and a power circuit module, a communication circuit module, a card swiping indicator light control circuit module, a maintenance door switch detection circuit module, a child detection sensor circuit module, an emergency control feedback circuit module, an alarm module and a plurality of reserved isolation switch input and output modules, all of which are connected to the processor module; The communication circuit module is provided with a standard input and output interface for receiving and sending instructions to an upstream industrial computer, and for sending instructions and receiving feedback signals to a downstream controlled device; The card swiping indicator light control circuit module is provided with a corresponding standard interface for connecting to the card swiping module of the terminal to collect the card swiping information and feed it back to the processor module, and control the indicator light to change color; The maintenance door switch detection circuit module is provided with a corresponding standard interface for connecting to the maintenance door switch module of the terminal and collecting switch status information; The child detection sensor circuit module is provided with a corresponding standard interface for connecting to the diffuse reflection sensor module of the terminal and collecting corresponding status information; The emergency control feedback circuit module is provided with a corresponding standard interface for connecting to the emergency control module of the terminal and collecting feedback information; The alarm module is provided with a corresponding standard interface for connecting to the alarm device on the terminal device and outputting an alarm instruction; The reserved isolation switch quantity input and output module is provided with at least three different types of isolation switch quantity input and output circuits and corresponding input and output standard interfaces for expansion; The power circuit module cooperates with the processor module to supply power to each module.
[0009] Based on the above, the standard interface includes a plurality of different types of interfaces arranged in parallel.
[0010] Based on the above, the standard interfaces of the same module are stacked in the vertical direction.
[0011] Based on the above, the reserved isolation switch quantity input and output module includes one isolation switch quantity output circuit, two isolation switch quantity input circuits, four isolation switch quantity output circuits, five isolation switch quantity inputs and eight isolation switch quantity output circuits.
[0012] Based on the above, the alarm module and the maintenance door switch detection circuit module are both isolation switch input / output modules.
[0013] Based on the above, the model of the processor module is the microcontroller STC8A8K64SA12.
[0014] Based on the above, the communication circuit module and the upstream industrial computer use the RS-232 interface protocol.
[0015] Based on the above, an interface adapter is also configured, and the interface adapter includes pin terminals and other types of connection terminals.
[0016] The present invention has outstanding substantive features and significant progress compared to the prior art. Specifically, the present invention has the following advantages: 1. As an expansion unit for the input and output of the industrial computer, the standardized IO board is mainly responsible for collecting the status of the module's arrival signal, door magnetic switch signal, sensor signal and other signals, and then controlling the pass indicator light, status indicator light, etc. It plays the role of relay conversion. Among them, each functional module sets a standard interface, which can be connected to the specific devices at different equipment ends and obtain signals. The universal logic chip is used to complete the protocol conversion, realize data collection and command control compatible with all lines, and communicate with the industrial computer with a unified interface protocol. It reduces the coupling of the system architecture, clarifies the system design interface, facilitates fault information search, and improves the overall stability and security of the terminal equipment.
[0017] 2. The designed standard interface adopts multiple different types of interfaces arranged in parallel, which can achieve adaptive connection with downstream devices and solve the defect that traditional IO boards are difficult to interconnect.
[0018] 3. Except for some special function modules that require special circuits for dedicated processing, the main function modules are configured according to the circuit mode of isolated switch input / output, and a certain amount of switch input / output circuits are reserved for backup, so that most signal transmission can be output through the switch input / output circuit mode, which improves the consistency of signal processing. Moreover, since the designed switch input / output circuits are based on the same standard, the signal consistency is stronger and the stability is guaranteed.
[0019] 4. Integrate the existing functional module types of the line network and the pre-developed functional modules of the later lines on a unified IO board to complete the functional integration of the IO board, avoid the parallel use of a large number of different IO boards, and improve safety.
[0020] 5. Since the processor module is integrated in the IO board, the collected protocol signals can be uniformly converted before communicating with the upstream industrial computer. The protocol content can be changed according to the use of on-site equipment. The basic data consists of packet header, data bit, check bit, etc., so that the industrial computer does not need to build in too many communication protocols to identify different functional modules, reducing the working pressure of the upstream industrial computer and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a system principle diagram of the standardized IO board of the AFC equipment terminal for subway in the present invention.
[0022] Figure 2 It is the core module circuit of the communication circuit of the standardized IO board of the AFC equipment terminal for subway in the present invention.
[0023] Figure 3 The invention discloses a circuit schematic diagram of a card swiping indicator light control circuit module of a standardized IO board of an AFC equipment terminal for a subway.
[0024] Figure 4 The invention discloses a circuit schematic diagram of a maintenance door switch detection circuit of a standardized IO board of a subway AFC equipment terminal.
[0025] Figure 5 It is a circuit principle diagram of a child detection sensor circuit module of a standardized IO board of a subway AFC equipment terminal in the present invention.
[0026] Figure 6 It is a circuit principle diagram of an emergency control feedback circuit module of a standardized IO board of a subway AFC equipment terminal in the present invention.
[0027] Figure 7 It is a circuit principle diagram of the alarm module of the standardized IO board of the AFC equipment terminal for subway in the present invention.
[0028] Figure 8 The invention discloses a circuit schematic diagram of an isolated switch output circuit in a reserved circuit module.
[0029] Fig. 9 It is a circuit principle diagram of a two-way isolation switch quantity input circuit in a reserved circuit module of the present invention.
[0030] Fig.10 It is a circuit principle diagram of a four-way isolation switch quantity output circuit in a reserved circuit module of the present invention.
[0031] Fig.11 The invention discloses a circuit schematic diagram of a five-way isolation switch quantity input circuit in a reserved circuit module.
[0032] Fig.12 It is a circuit principle diagram of an eight-way isolation switch quantity output circuit in a reserved circuit module of the present invention.
[0033] Fig.13 It is a circuit principle diagram of the power supply circuit of the standardized IO board of the AFC equipment terminal for subway in the present invention.
[0034] Fig.14 It is a circuit schematic diagram of the processor module in the present invention. DETAILED DESCRIPTION
[0035] The technical solution of the present invention is further described in detail below through specific implementation methods.
[0036] like Figure 1 As shown, a standardized IO board for an AFC equipment terminal for a subway includes a processor module and a power circuit module, a communication circuit module, a card swiping indicator light control circuit module, a maintenance door switch detection circuit module, a child detection sensor circuit module, an emergency control feedback circuit module, an alarm module, and a plurality of reserved isolation switch input and output modules, all of which are connected to the processor module.
[0037] Among them, in this embodiment, the model of the processor module is the microcontroller STC8A8K64SA12, which is a chip with a wide range of protocol parsing and processing capabilities. This chip is used to complete the parsing and forwarding of different protocols, and a unified communication interface protocol is used with the host industrial computer to achieve information exchange, such as the RS-232 interface protocol, so that the communication with the host industrial computer is more stable and the connection with various downstream functional modules has wide adaptability.
[0038] With the functional support of the processor module, the power circuit module, communication circuit module, card swiping indicator light control circuit module, maintenance door switch detection circuit module, child detection sensor circuit module, emergency control feedback circuit module, alarm module and several reserved isolation switch input and output modules are integrated on the same IO board, which greatly improves the richness of the IO board and alleviates the traditional situation of one IO board per machine. In addition, the signal can be uniformly output from the standardized IO board through an integrated design to improve processing efficiency, such as Fig.14 As shown, this is the circuit schematic diagram of the processor module.
[0039] The communication circuit module is provided with a standard input and output interface for receiving and sending instructions to an upstream industrial computer, and for sending instructions and receiving feedback signals to a downstream controlled device. Figure 2 As shown, the circuit schematic diagram of the core functional module of the communication circuit is used to relay and connect various functional modules.
[0040] like Figure 3 As shown, the card swiping indicator light control circuit module is provided with a corresponding standard interface for connecting the card swiping module of the terminal to collect the card swiping information and feed it back to the processor module, and control the indicator light to change color. The figure shows the circuit diagram of its core functional module, which is used for communication with the card reader at the gate end.
[0041] like Figure 4 As shown, the maintenance door switch detection circuit module is provided with a corresponding standard interface for connecting the maintenance door switch module of the terminal and collecting switch status information. As shown in the figure, it is designed as a four-way isolation switch input circuit, connected to the maintenance door switch, for collecting the status information of the maintenance door switch.
[0042] like Figure 5 As shown, the child detection sensor circuit module is provided with a corresponding standard interface for connecting the diffuse reflection sensor module of the terminal and collecting corresponding status information. The CN22 port shown in the figure is used to connect the diffuse reflector, and the CN12 port shown in the figure is used to connect the J4 interface of the A2PCM of other PCM control boards for signal transfer and relay.
[0043] like Figure 6As shown, the emergency control feedback circuit module is provided with corresponding standard interfaces for connecting the emergency control module of the terminal and collecting feedback information, wherein CN15 is the emergency control power input, CN16 is the emergency control input and output, CN17 is the emergency control feedback output, which is a reserved interface, CN18 is the emergency feedback relay signal input, and CN19 is used to connect to the M3 emergency input of A2PCM of other PCM boards for signal transfer and relay.
[0044] like Figure 7 As shown, the alarm module is provided with a corresponding standard interface for connecting to the alarm device on the terminal device to output an alarm instruction. In this embodiment, the alarm module includes an alarm light and a buzzer. CN5 in the figure is a four-way isolated switch input for driving the alarm. CN6 is a switch output connected to CN5-6 for driving the buzzer. It is also designed as a switch circuit.
[0045] like Figure 8-12 As shown, the reserved isolation switch input and output module is provided with at least three different types of isolation switch input and output circuits and corresponding input and output standard interfaces for expansion. In this embodiment, the reserved isolation switch input and output module includes one isolation switch output circuit ( Figure 8 )、Two-way isolated switch input circuit ( Fig. 9 )、Four-way isolated switch output circuit( Fig.10 )、Five-way isolated switch input( Fig.11 ) and eight-way isolated switch output circuit ( Fig.12 ).
[0046] The present invention integrates the special circuit modules that can be counted in the working conditions, and then designs the isolated switch quantity circuits that can collect signals through the isolated switch quantity circuits to be in the form of isolated switch quantity circuits, and connects with different object modules. In addition to the necessary main modules, a variety of switch quantity isolation circuits of different types are reserved. When optimization and upgrading are needed in the later stage, there is no need to modify the IO version, and only needs to find the switch quantity input / output circuit that can adapt to it for adaptation. It has a wide range of adaptability, and these circuits are based on the same IO integration, have similar circuit structure, and stability is also guaranteed.
[0047] like Fig.13 As shown, the power circuit module cooperates with the processor module to provide power to each module.
[0048] The above-mentioned standard interfaces include multiple different types of interfaces arranged in parallel in physical hardware, such as pin type, USB type, plug type, RJ45 type, etc., which are common different types of interface forms, and are used to widely improve adaptability.
[0049] In terms of spatial design, standard interfaces of the same module are stacked vertically to optimize the spatial structure and facilitate identification.
[0050] In a preferred embodiment, an interface adapter is also configured, and the interface adapter includes pin terminals and other types of connection terminals, and the interface adapter is used to meet the actual needs of different functional modules.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.
Claims
1. A standardized IO board for AFC equipment terminal for subway, characterized by: It includes a processor module and a power circuit module, a communication circuit module, a card swiping indicator light control circuit module, a maintenance door switch detection circuit module, a child detection sensor circuit module, an emergency control feedback circuit module, an alarm module and a number of reserved isolation switch input and output modules, all of which are connected to the processor module; The communication circuit module is provided with a standard input and output interface for receiving and sending instructions to an upstream industrial computer, and for sending instructions and receiving feedback signals to a downstream controlled device; The card swiping indicator light control circuit module is provided with a corresponding standard interface for connecting to the card swiping module of the terminal to collect the card swiping information and feed it back to the processor module, and control the indicator light to change color; The maintenance door switch detection circuit module is provided with a corresponding standard interface for connecting to the maintenance door switch module of the terminal and collecting switch status information; The child detection sensor circuit module is provided with a corresponding standard interface for connecting to the diffuse reflection sensor module of the terminal and collecting corresponding status information; The emergency control feedback circuit module is provided with a corresponding standard interface for connecting to the emergency control module of the terminal and collecting feedback information; The alarm module is provided with a corresponding standard interface for connecting to the alarm device on the terminal device and outputting an alarm instruction; The reserved isolation switch quantity input and output module is provided with at least three different types of isolation switch quantity input and output circuits and corresponding input and output standard interfaces for expansion; The power circuit module cooperates with the processor module to supply power to each module.
2. The standardized IO board for AFC equipment terminal for subway according to claim 1, characterized in that: The standard interface includes a plurality of different types of interfaces arranged in parallel.
3. The standardized IO board for AFC equipment terminal for subway according to claim 2, characterized in that: The standard interfaces of the same module are stacked vertically.
4. The standardized IO board for subway AFC equipment terminal according to claim 3 is characterized in that: The reserved isolation switch quantity input and output module includes one isolation switch quantity output circuit, two isolation switch quantity input circuits, four isolation switch quantity output circuits, five isolation switch quantity inputs and eight isolation switch quantity output circuits.
5. The standardized IO board for subway AFC equipment terminal according to claim 1, 2, 3 or 4, characterized in that: The alarm module and the maintenance door switch detection circuit module are both isolation switch quantity input / output modules.
6. The standardized IO board for AFC equipment terminal for subway according to claim 5, characterized in that: The model of the processor module is microcontroller STC8A8K64SA12.
7. The standardized IO board for AFC equipment terminal for subway according to claim 6, characterized in that: The communication circuit module and the upstream industrial computer use the RS-232 interface protocol.
8. The standardized IO board for AFC equipment terminal for subway according to claim 7, characterized in that: An interface adapter is also provided, which includes pin terminals and other types of connection terminals.