Application of Axiomtek industrial computer of Aix

Axiomtek industrial computer is applied to new disinfection equipment

Background:

as we all know, the Forbidden City Museum needs to carry out strict disinfection in the process of cultural relics entering and leaving the warehouse. In some places that are not easy to contact, the traditional disinfection mode and disinfection instruments can not ensure the uniform spraying of disinfectant and the volatilization of residual agents after disinfection. The new disinfection equipment is a special equipment for low-temperature fumigation and sterilization of articles in a closed disinfection cabinet with ethylene oxide gas under the control of computer under certain temperature, pressure and humidity. It is characterized by strong penetration, complete sterilization, no corrosion and no damage to articles, etc

especially in the mass production of medical equipment, medicine, textiles and biological products, instruments and meters, strict disinfection process must be carried out. Therefore, large-scale industrialization, centralized and efficient disinfection is very important to improve production efficiency. Since all disinfection processes are carried out in the harsh environment of dust and high and low temperature changes, the computer control system must also have the characteristics of reliable operation, simple operation, strong universality and safe use

system composition

disinfection equipment is mainly composed of four parts: disinfection cabinet, control rack, electric control cabinet and computer control system. The disinfection cabinet adopts a sealing system, and the control frame includes heating system, vacuum system, waste gas treatment system, humidification system, etc. Electrical control cabinet (hereinafter referred to as electrical control cabinet): it is composed of operation panel and low-voltage electrical components. The water tank temperature and the temperature in the disinfection cabinet can be observed on the operation panel, and the manual operation and automatic operation can also be switched

system principle

the disinfection effect of ethylene oxide is related to the temperature, pressure, humidity and concentration of ethylene oxide in the disinfection cabinet. These process parameters can shorten the disinfection time and achieve the best disinfection effect at appropriate values. In the disinfection process, first heat the disinfection cabinet until the temperature reaches the predetermined disinfection temperature, then vacuum the disinfection cabinet. When the predetermined vacuum degree is reached, start dosing the disinfection cabinet; After the above process, the timing clock starts to work and the disinfection process starts; It is necessary to maintain a constant temperature during the whole disinfection process. When the disinfection time is up, start to exchange air for the disinfection cabinet, that is, replace the residual ethylene oxide gas in the disinfection cabinet with filtered clean air, discharge the residual gas, and discharge the residual gas after treatment by the waste gas treatment system. In this way, the whole disinfection process is over

an important part of this scheme is the computer control system. Its main function is to convert the collected analog signal into digital signal through dasp-52180 in the industrial control computer through the temperature sensor, pressure sensor and humidity sensor in the disinfection cabinet. After being adopted by the industrial control computer, it can automatically control the whole process of disinfection cycle through real-time dynamic display after loading program conversion. The control signal is output to the control appliances in the circulation pump, vaporization pump, vacuum system, humidification system and waste gas treatment system in the control cabinet through dasp-52032 to realize the disinfection and sterilization functions such as low temperature, high pressure and fumigation

solution

in the operation room of disinfection equipment, ordinary computers often can not adapt to the large oil output of oil return pipe of oil delivery valve, high and low temperature changes and long-term operation in dust environment. Therefore, the use of industrial control computer is the most ideal solution. The industrial computer and control board card of Axiomtek brand can meet various hardware requirements of the computer control system of disinfection equipment. The specific composition of industrial computer and its control system is as follows: industrial computer (ax-61400) PIII sbc-81610ve motherboard, on-board CPU is via Eden 667, memory is 256M, hard disk is 20g, control board card is dasp-52180 (8-channel isolated a/D input card) and dasp-52032 (32-channel digital input/output), other auxiliary equipment printer, UPS power supply and display

the disinfection effect is related to the temperature, pressure, humidity and ethylene oxide concentration in the disinfection cabinet. It can be seen that the most important thing of the control system is to control all parameters of the disinfection process. This control system can centrally control all parameters and switching values of the disinfection process, with high accuracy and simple operation. It can also set different values according to the media of different products and save them. At the same time, the process parameters of the whole equipment are displayed on the screen, and the good user interface vividly reflects the working state of the equipment

due to working in a dusty environment, the ax61400 12cm ball cooling fan used for the smooth grease of the bearing has good ventilation and dust-proof effect and is easy to replace and clean. The low-power motherboard SBC 81610ve has a fan free CPU on board. The CPU is equipped with a heat sink to reduce the failure rate. The built-in sound card can realize the voice alarm function, etc. the operating system adopts win200o and the software environment adopts VC 6.0

hardware features

Axiomtek ax61400

4U 14 slot rack

three 5.25 "and up to two 3.5" disk drive racks

one 12cm ball cooling fan (optional) two thermal induction fans

support 14 slot backplane or ATX motherboard

support PS/2 power supply (also support hot plug redundant power supply)

sbc81610ve low power via C3 SBC with VGA/dual LAN

via vt8601t/686B chip supports 100/133 MHz bus external frequency

onboard via C3 800MHz/1GHz processor

3 DIMM sockets (up to 1.5GB SDRAM)

VGA with 8MB video memory

10/100M card

preformed fiber fabric that supports and infiltrates the high-speed drive industry standard

DiskOnChip socket

dasp-52180 (8-channel isolated a/D input card)

12 bits, 8 independent analog inputs

analog input types: voltage and current

independent operation digital analog sampling (automatic operation and automatic update)

timer with card monitoring

0 starting point digital analog programmable software

support Windows 98/NT/2000/XP and LabVIEW 6.0/7.0 drive

support VB, VC BCB and Delphi

dasp-52032 (32-way digital input/output)

16 bit digital input channel

8 SPDT 8 SPST output channel

support LED display

AC/DC power input

reread output status

optical frequency isolation input channel (2500vdc) and high overvoltage protection (50VDC)

support EEPROM

support Windows 98/NT/2000/XP and LabVIEW 6.0/7.0 drive

support VB, VC BCB and Delphi

system advantages

Aixun technology industrial computer has superior performance, high stability and anti-interference ability, and can adapt to