CN213754821U

CN213754821U - Alarm interface board

Info

Publication number: CN213754821U
Application number: CN202022510200.5U
Authority: CN
Inventors: 杨旭华; 廖辉; 焦龙超
Original assignee: Shenou Communication Equipment Co ltd
Current assignee: Shenou Communication Equipment Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-20
Anticipated expiration: 2030-11-03

Abstract

The utility model provides an alarm interface board, belonging to the technical field of industrial control, comprising a board card, an input module, an output module, a communication module and a control module which are arranged on the board card, wherein the input module comprises an input connector which is electrically connected with an input interface on the control module; the output module comprises an output connector, and the output connector is electrically connected with an output interface on the control module; the control module is used for receiving the input signal and outputting an action instruction to the output module according to the input signal, and the control module is also communicated with the upper computer through the communication module. The utility model provides an interface board of linking up alarm signal machine digit stored program controlled switch of industry terminal product can be exclusively used in and concentrate the alarm signal who collects each industry terminal product to can collect through the corresponding industry terminal product of output control, through concentrating with input collection and output control, be convenient for manage, the wiring, be suitable for in-service use.

Description

Alarm interface board

Technical Field

The utility model relates to an industrial control technical field especially relates to an alarm interface board with digital stored program control switch cooperation is used.

Background

The digital program controlled exchanger is a telephone exchanger which uses modern computer technology to complete control and connection, and its basic functions are subscriber line access, relay connection, charging and equipment management, etc. with the continuous development of information technology, the program controlled digital exchanger is more and more widely used in some industrial control systems.

In an industrial control system, a common application mode is to collect alarm signals of various industrial terminal products, and when the industrial terminal products have faults, a corresponding telephone number is automatically called or alarm processing is performed through a digital stored program control exchange.

The application of the scheme is provided based on the digital program controlled switch of the alarm signal machine for connecting industrial terminal products.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides an alarm interface board for concentrate and receive, send alarm signal and corresponding action instruction, provide a centralized connection structure convenient to use, management for digital stored program controlled switch and industrial terminal product.

In order to achieve the above object, the utility model discloses warning interface board structure as follows: the input module comprises an input connector, and the input connector is electrically connected with an input interface on the control module; the output module comprises an output connector, and the output connector is electrically connected with an output interface on the control module; the control module is used for receiving the input signal provided by the input module, outputting an action instruction to the output module according to the input signal and communicating with the upper computer through the communication module.

Through the technical scheme, the utility model provides an independency, modular interface plate structure, it is through inserting, the input connection concentrates on the interface board with the input, makes input signal and output signal get to carry out centralized management and processing on the interface board, and then effectively improves the efficiency to the operation control of each industry terminal product among the industrial control system. And, the utility model discloses can be connected with host computer such as digital stored program controlled switch through communication module to the very first time notifies maintainer through modes such as telephone when industrial terminal product breaks down.

The utility model discloses the interface board independently sets up, the installation of being convenient for is equipped with the connector that is used for input, output connection simultaneously, has further made things convenient for the actual wiring to use.

The utility model discloses further set up as follows: the state indicating module is arranged: and each path of input and output in the output module and the input module is provided with a status indicator lamp, and the working status of each path of input and output can be visually and clearly monitored through the status indicator lamp, so that the normal work of the whole system is ensured.

For protection circuit, avoid the signal to be disturbed, the utility model discloses further set up as follows: each input of the input module is provided with an optical coupler isolator; or a multi-channel digital isolation chip is arranged to isolate the internal and external signals, and the number of the channels of the multi-channel digital isolation chip is in one-to-one correspondence with the input channels in the input module.

For convenient use, the utility model discloses further set up as follows: the output module also comprises a relay, part or all of the output interfaces are connected to the control end of the relay, and the output end of the relay is connected to the output connector. When the alarm device is used, the output end of the relay can be directly connected to a fire alarm system and other systems, and when the control module receives an alarm signal, related equipment or systems can be directly triggered in time at the first time, so that quick response is realized.

The utility model discloses further set up as follows: the communication module comprises an RS485 communication module and an RS422 communication module. The RS485 interface meets the design standard of an industrial interface, and a standard ModbusRTU communication protocol is adopted to support the switching of master-slave working modes of the board card through the attendant console, so that different use requirements are met. The RS422 interface is reserved for standby, and the corresponding equipment docking function can be customized according to the actual requirements of customers.

For satisfying the actual use needs, the utility model discloses further set up as follows: the input module is provided with 8 paths of input, and the output module is provided with 8 paths of output.

Wherein, the utility model discloses further set up as follows: the input connector is provided with 8 wiring ends, 8 paths of outputs of the output module are connected with a relay for outputting, and the output connector is provided with 16 wiring ends.

The utility model discloses further set up as follows: the control module comprises a master controller and a slave controller, the input module and the output module are both connected with the slave controller, and the communication module is connected with the master controller; the slave controller is connected with the master controller in a multi-machine communication mode.

Above-mentioned technical scheme is through setting up main control unit and following the controller, with the collection of input, output, control distribution to from the controller in, and will arrange main control unit in with the communication function of host computer, through the function distribution, can effectively improve the utility model discloses the work efficiency of integrated circuit board to keep apart through the signal of the above-mentioned inside and outside (input signal, output signal promptly), ensure the stability of data, improve and produce the property ability.

Preferably, the present invention further provides: the main controller and the auxiliary controller are MCU or PLC.

For strengthening the monitoring to each way input signal, output signal, the utility model discloses further set up as follows: the state indicating module further comprises a buzzer, and the buzzer is controlled by the control module to work. When the input signal and the output signal are in abnormal working states, an operator can be reminded to pay attention to the board card and solve problems, or when an industrial terminal product breaks down, the fault condition can also be reflected immediately.

In order to customize according to the customer's demand, the utility model discloses further set up as follows: the main controller is an STM series single chip microcomputer, the sub controller is an FPGA chip, and the FPGA chip can be edited on site.

The utility model has the advantages as follows:

the utility model provides a link up alarm signal machine digit stored program control switch's of industry terminal product interface board can be exclusively used in and concentrate the alarm signal who collects each industry terminal product to can collect through the corresponding industry terminal product of output control, through concentrating input collection and output control, be convenient for management, wiring, be suitable for in-service use.

Secondly, the utility model discloses it is high independently, the modularization, it can regard as solitary control panel to use, also can regard as a plug-in components use among the digital stored program control switch. And, the utility model discloses can also set up the owner of its work, follow the state through communication mode, its simple structure nevertheless the using-way is various, nimble, has comparatively extensive application range.

Drawings

Fig. 1 is a schematic view of the overall principle of the embodiment of the present invention.

Fig. 2 is a schematic diagram of an acquisition circuit of an 8-way switch according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an 8-way switch control output circuit according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of an RS485 communication circuit according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of an RS422 communication circuit according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a control module according to an embodiment of the present invention.

Detailed Description

The utility model provides an alarm interface board structure, include the integrated circuit board and set up input module, output module, communication module, the control module on the integrated circuit board, input module is including the input connector, and the input connector is connected with the last input interface electricity of control module. The output module comprises an output connector which is electrically connected with an output interface on the control module. The control module is used for receiving the input signal and outputting an action instruction to the output module according to the input signal, and the control module is also communicated with the upper computer through the communication module.

The following examples are further illustrated.

Embodiment 1 as shown in fig. 1, this embodiment provides an alarm interface board, which includes a board card, and a power circuit, a master control circuit, a slave control circuit, an RS485 communication circuit, an RS422 communication circuit, an 8-way switch acquisition circuit, an 8-way switch control output circuit, and a status indication circuit that are disposed on the board card. As shown in fig. 6, the main control circuit in this embodiment mainly includes an STM32F103C8 chip U2 and its corresponding auxiliary circuits, and the main control circuit can implement master-slave communication through the pin 22 labeled TXD of the STM32F103C8 chip U2 in its circuits and the RXD pin of the LCMXO256C chip U1 in the slave control circuit, in combination with corresponding program settings. In addition, the main control circuit is mainly used for communicating with an upper computer, so that the main control circuit is also provided with another two groups of RXD pins 31, TXD pins 30, RXD pins 13 and TXD pins 12 which are respectively connected with an RS485 communication circuit and an RS422 communication circuit.

With continued reference to fig. 6, in the LCMXO256C chip U1 of the slave control circuit, pins 13 to 21 (labeled D7 to D0) serve as 8-way input I/O interfaces, and pins 95, 94, 91, 89, 87, 86, 85, and 81 (labeled DA8 to DA7) serve as 8-way output I/O interfaces.

Theoretically, the 8-way input I/O interface is connected to the corresponding pin of the 8-way input connector after being connected with an LED indicator lamp for indicating the state of the channel in series. However, in practical application, in order to keep the input signal stable and avoid the input signal from being interfered and affecting data, as shown in fig. 2, in the 8-way switch acquisition circuit of this embodiment, a tri-state flip-flop provided by a chip 74HC245PW is used to keep the data transmission stable, and then an internal signal and an external signal are isolated by a multi-channel optical coupling isolation device, so as to avoid the input signal from being interfered. Corresponding to the optical coupler input mode, in this embodiment, the 8-way input connector is provided with 8 pins, which are respectively in one-to-one correspondence with the 8-way input I/O interfaces.

For convenience of use, the 8-way switch control output circuit is combined with a relay for controlling output, so as shown in fig. 3, the 8-way output I/O interface is also connected to the control ends of 8 relays corresponding to the 8-way output I/O interface one by one after the data transmission is kept stable by a tri-state trigger provided by a 74HC245PW chip U17, and the output ends of the relays are 2 and need to be connected in series to a loop of a corresponding system for use, so that the 8-way output connector is provided with 16 pins, and each 2 pins form a group and correspond to the 8 relays one by one.

In consideration of the fact that in practical application, the relay is large in size and is not usually mounted on a circuit board during use, a through connector U18 convenient for wiring is arranged on the basis of the embodiment, the through connector U18 is provided with 8 paths of inputs and 8 paths of outputs, the inputs of the 8 paths of inputs are connected with 8 paths of outputs of a 74HC245PW chip U17 in a one-to-one correspondence mode, and the 8 paths of outputs of the through connector U18 are respectively connected to the control end of the relay.

In this embodiment, an LED indicator for status display may be provided on the connection between the slave controller and the chip 74HC245 PW.

In this embodiment, the communication module includes an RS485 communication module and an RS422 communication module. The structure of the RS485 communication circuit corresponding to the RS485 communication module is shown in fig. 4, and the structure of the RS422 communication circuit corresponding to the RS422 communication module is shown in fig. 5.

Example 2 this example is further set up on the basis of example 1 as follows: the state indicating module also comprises a buzzer, the buzzer is connected with the output I/O of the U2 chip of the STM32F103C8 of the main controller, and the work is controlled by the U2 chip of the STM32F103C 8.

To sum up, the utility model provides a simple structure, modular warning interface board, it is as the union piece between digital stored program control switch and the industrial terminal product, can concentrate alarm information, the fault information of each industrial terminal product and handle effectively, simultaneously, to having the trouble or needing the alarm circumstances, can be through RS485 or R422's communication mode and host computer-digital stored program control switch communication promptly, digital stored program control switch then dials the warning phone according to information is automatic.

Claims

1. An alarm interface board, characterized by: the input module comprises an input connector, and the input connector is electrically connected with an input interface on the control module; the output module comprises an output connector, and the output connector is electrically connected with an output interface on the control module; the control module is used for receiving input signals and outputting action instructions to the output module according to the input signals, and the control module is further communicated with an upper computer through the communication module.

2. The alarm interface board of claim 1, wherein: the state indicating module is arranged: and each path of input and output of the output module and the input module is provided with a status indicator lamp.

3. The alarm interface board of claim 1, wherein: each input of the input module is provided with an optical coupler isolator; or a multi-channel digital isolation chip is arranged to isolate the internal and external signals, and the number of the channels of the multi-channel digital isolation chip is in one-to-one correspondence with the input channels in the input module.

4. The alarm interface board of claim 1, wherein: the output module also comprises a relay, part or all of the output interfaces are connected to the control end of the relay, and the output end of the relay is connected to the output connector.

5. The alarm interface board of claim 1, wherein: the communication module comprises an RS485 communication module and an RS422 communication module.

6. The alarm interface board of claim 1, wherein: the input module is provided with 8 paths of inputs, and the output module is provided with 8 paths of outputs; the input connector is provided with 8 wiring ends, 8 paths of outputs of the output module are connected with a relay for outputting, and the output connector is provided with 16 wiring ends.

7. The alarm interface board of claim 1, wherein: the control module comprises a master controller and a slave controller, the input module and the output module are both connected with the slave controller, and the communication module is connected with the master controller; the slave controller is connected with the master controller in a multi-machine communication mode.

8. The alarm interface board of claim 7, wherein: the main controller and the auxiliary controller are MCU or PLC.

9. The alarm interface board of claim 7, wherein: the main controller is an STM series single chip microcomputer, and the sub controller is an FPGA chip.

10. The alarm interface board of claim 2, wherein: the state indicating module further comprises a buzzer, and the buzzer is controlled by the control module to work.