1. O computador industrial adota uma micro-impressora térmica e a corrente média máxima não é superior a 115A. De acordo com os requisitos do usuário, a tela sensível ao toque e o teclado operacional podem ser reconfigurados.
2. Slot de expansão da porta serial
The C104HöPCI multi-serial port card from Taiwan Moxa Company can be used to expand the system to 4 standard RS232 serial ports, of which No. 1, 2 and 3 are used to connect the loop communication card, and No. 4 is used to connect the peripheral communication card.
3. Loop communication card
The function of the loop communication card is to manage 32 loop boards downward, complete the status scan of each loop board (normal, fire alarm, fault, linkage), and realize two-way data exchange with the industrial computer upward. RS232 is used to communicate with the industrial computer, and RS485 is used to communicate with the circuit board.
4. Peripheral communication card
The function of the peripheral communication card is to manage the audio board, relay card, manual control panel, and floor repeater used by the system. Except for the audio board, which is a must, the rest are optional, of which a maximum of 16 relay cards are provided. There are 16 manual control panels, 64 floor repeaters, and RS485 communication is used between the two; the two-way data transmission with the industrial computer is completed, and the two use RS232 communication.
5. Circuit board
The function of the circuit board is to complete the data acquisition of all detectors and modules connected to this circuit, and to do preliminary data processing. Each circuit board can be connected to 128 ordinary addressing units, or 198 intelligent addressing units.
6. Placa de som
The function of the sound board is first to realize the sound and light alarm in the case of fire alarm, fault and early warning, and at the same time monitor the running status of the main and backup power on the power board, in addition to the general fire alarm relay and programmable relay set in the management system.
4. Projeto de Software
1. IPC software
The software of the industrial computer adopts the visual programming language VisualBasic of Microsoft Corporation to compile. It mainly completes the processing and judgment of various sampling data from the lower computer, monitors the operating status of the system, and responds to various operation instructions of the user. The program can be divided into the following modules in structure:
(1) Editing program module: complete system configuration, loop configuration, control matrix establishment, floor plan drawing and other functions.
(2) Communication program module: complete the communication function with the loop communication card, peripheral communication card, printer and other parts.
(3) Alarm display program module: It completes the functions of displaying, recording, and calling floor plans of system alarm events.
(4) Help program module: provide online help for all operations, so that users can master system functions, settings and other requirements.
2. Communication card, circuit board, audio board software
These three boards are programmed in MCS251 assembly language, and the RS485 baud rate of inter-board communication is set to 4800bps. Assembly language can better solve the problem of real-time and accuracy, so as to meet the requirements of the national standard GB16806-1997 on alarm time. In order to improve the reliability of the alarm, the software adopts measures such as CRC check, intelligent algorithm, and multiple judgments.
5. System Features
(1) The system has a large alarm capacity, which can reach more than 19,000 points.
(2) Due to the use of Windows2000 operation plane, the interface is beautiful and easy to operate.
(3) The advantages of historical record preservation and floor plan management are particularly obvious.
