CN2793787Y - Controller of biological safety cabinet - Google Patents
Controller of biological safety cabinet Download PDFInfo
- Publication number
- CN2793787Y CN2793787Y CN 200520041216 CN200520041216U CN2793787Y CN 2793787 Y CN2793787 Y CN 2793787Y CN 200520041216 CN200520041216 CN 200520041216 CN 200520041216 U CN200520041216 U CN 200520041216U CN 2793787 Y CN2793787 Y CN 2793787Y
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- CN
- China
- Prior art keywords
- circuit
- connects
- safety cabinet
- photoelectric isolating
- biological safety
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a controller of a biological safety cabinet. One end of a microprocessor 1 is connected with a keyboard circuit 8, an AD unit 6, a photoelectric isolation circuit 4, a clock circuit 3 and a watch-dog circuit 2 and the other end of the microprocessor 1 is connected with a liquid crystal display circuit 9, an expanding interface circuit 10, a storage circuit 19 and a communication circuit 20. The AD unit 6 is connected with a sensor 7. The photoelectric isolation circuit 4 is connected with a limit switch 5. The expanding interface circuit 10 is connected with another photoelectric isolation circuit 11 and a remote control circuit 18. The photoelectric isolation circuit 11 is connected with an output driving circuit 12 connected with an air blower 13, an exhaust blower 14, a UV device 15, a lighting device 16 and an expanding power supply 17. The utility model utilizes advanced microprocessor programming technology and an interface driving circuit for realizing the control of a safety cabinet, provides complete functions and high safety.
Description
Technical field
The utility model relates to the biological safety cabinet controller that uses in a kind of medical treatment, health and the pharmacy, more particularly relates to a kind of bio-safety cabinet intelligent controller that ensures biologic test safety.
Background technology
Biohazard Safety Equipment is a kind of Bioexperiment safeguard that is used for experimental study mechanisms such as scientific research institutions, hospital.After SARS wreaked havoc in 2003, dispose safe and reliable Biohazard Safety Equipment and more and more be subject to people's attention.The existing secondary of China with go to the hospital and disease controls at different levels center 30000 surplus family, but the Biohazard Safety Equipment popularity rate is not high.Biohazard Safety Equipment is substantially the most also to be of paramount importance the first line of defence in the Bioexperiment, owing to do not dispose safe and reliable Biohazard Safety Equipment in the past, our medical worker and disease control unit have paid heavy cost in the process of resisting SARS.At present, in the similar at home Biohazard Safety Equipment product, the two stage biological safety cabinet of SuZhou Antai Air Tech Co., Ltd. is arranged, the Biohazard Safety Equipment in intelligence city, Shanghai, their operation is controlled by relay, does not have automatic protection function and functions such as remote control, communication, and safe coefficient is not high.Domestic, some other Biohazard Safety Equipment, the user is difficult to the situation of filtrator is judged, and lacks the function of automatic protection duplicate protection.Therefore, people propose to need more reliable control, safer assurance are arranged, more easily Cao Zuo intelligent Biohazard Safety Equipment.
The utility model content
At above-mentioned actual demand, technical problem to be solved in the utility model provides a kind of condition monitoring that possesses, and pressure reduction shows, output driving circuit sample and state interlocking duplicate protection, wireless remote control, the bio-safety cabinet intelligent controller of communication function.
The technical scheme that the utility model adopted: a kind of biological safety cabinet controller, it is characterized in that: an end of microprocessor connects keyboard circuit, the AD unit, photoelectric isolating circuit, clock circuit and watchdog circuit, the other end connects the LCD liquid crystal display circuit, expansion interface circuit, memory circuit and communicating circuit, described AD unit connects sensor, described photoelectric isolating circuit connects limit switch, described expansion interface circuit connects another photoelectric isolating circuit and remote control circuit, described photoelectric isolating circuit connects output driving circuit, and described output driving circuit connects pressure fan, exhaust blower, the UV device, illumination and expansion of power supply.
Be equipped with photoelectric isolating circuit between described expansion interface circuit and the output driving circuit, described photoelectric isolating circuit connects relay by amplifier, and the two ends of described relay are equipped with fly-wheel diode.
Be equipped with pull-up resistor between described expansion interface circuit and the remote control circuit.
Advantage of the present utility model is that described bio-safety controller is based on microprocessor, cooperate relevant functional circuit, operation for Biohazard Safety Equipment on the basis of control operation of original traditional biological safety cabinet and simple logic restriction provides more humane novel concept, specifically comprises:
1, the LCD LCDs can dynamically show air-supply and air draft pressure reduction;
2, the interlocking between numerous can not the operation simultaneously of realization;
2, built-in 24-hour format timing demonstration and stop watch function;
3, blower fan work time timer function determines whether its filtrator needs to change with monitoring safety cabinet service time by safety cabinet service time;
4, uviol lamp working time timer function is with monitoring uviol lamp service time, and estimates that uviol lamp need change the time, can control the ultraviolet disinfection time automatically simultaneously;
Sound and light alarm is arranged when 5, operation window is not fastened,, sound and light alarm is also arranged and the liquid crystal display alarm is arranged if front window is opened above operational height;
6, straighforward operation, the coupling different antennae can realize 5 meters to ten meters straighforward operation;
7, backing up maintenance pattern can be carried out data parameters analysis and fault eliminating to safety cabinet.8, carry out communication with host computer, have ability with computing machine communication and even network monitoring.
The Biohazard Safety Equipment that above numerous function designs all are the no microprocessors of tradition in the past is unexistent.The utility model has overcome the defective of simple logic control; microprocessor programming technique that utilization is advanced and interface driving circuit are realized the control to safety cabinet; adopted the duplicate protection of state interlocking; further realize the automatic protection of BIOLOGICAL CONTROL cabinet; adopted the LCD LCD; real-time environmental data monitoring in the safety cabinet preferably is provided, and abundant warning message and error message is provided.Easy to operate, dependable performance.
Description of drawings
Fig. 1 is a bio-safety controller architecture block diagram;
Fig. 2 is the interface driving circuit schematic diagram;
Fig. 3 four remote-control circuit structure block diagrams.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail: as shown in Figure 1, a kind of biological safety cabinet controller, it is characterized in that: an end of microprocessor 1 connects keyboard circuit 8, AD unit 6, photoelectric isolating circuit 4, clock circuit 3 and watchdog circuit 2, the other end connects LCD liquid crystal display circuit 9, expansion interface circuit 10, memory circuit 19 and communicating circuit 20, described AD unit 6 connects sensor 7, described photoelectric isolating circuit 4 connects limit switch 5, described expansion interface circuit 10 connects another photoelectric isolating circuit 11 and remote control circuit 18, described photoelectric isolating circuit 11 connects output driving circuit 12, and described output driving circuit 12 connects pressure fan 13, exhaust blower 14, UV device 15, illumination 16 and expansion of power supply 17.Connect and compose interface driving circuit by photoelectric isolating circuit and output driving circuit, concrete circuit connects relay by photoisolator by amplifier as shown in Figure 2, and the two ends of described relay are equipped with fly-wheel diode.As shown in Figure 3, be equipped with pull-up resistor R between described expansion interface circuit 10 and the remote control circuit 18.
The utility model is core with the microprocessor, has connected keyboard circuit, watchdog circuit, clock circuit and RS-232 interface communicating circuit around microprocessor successively.Be connected with remote control circuit by expansion interface circuit, output driving circuit.Wherein keyboard circuit comprises 7 buttons, and 4 are carried out manual operation, comprise the open and close blower fan, and the opening and closing illumination opens and closes UV, and 3 are used for showing page turning and parameter setting.Watchdog circuit ensures the reliability service of program, clock circuit provides 24 hours clocking capability for system, the RS-232 communicating circuit makes the ability that the utlity model has with computing machine communication and even network monitoring, remote control circuit makes the convenience that Biohazard Safety Equipment of the present utility model has the operated from a distance Biohazard Safety Equipment is installed, and output driving circuit has then guaranteed the reliable control to object such as blower fan and light in the Biohazard Safety Equipment.
Above said content only is the basic explanation under the utility model design, and according to any equivalent transformation that the technical solution of the utility model is done, all should belong to protection domain of the present utility model.
Claims (3)
1. biological safety cabinet controller, it is characterized in that: an end of microprocessor (1) connects keyboard circuit (8), AD unit (6), photoelectric isolating circuit (4), clock circuit (3) and watchdog circuit (2), the other end connects LCD liquid crystal display circuit (9), expansion interface circuit (10), memory circuit (19) and communicating circuit (20), described AD unit (6) connects sensor (7), described photoelectric isolating circuit (4) connects limit switch (5), described expansion interface circuit (10) connects another photoelectric isolating circuit (11) and remote control circuit (18), described photoelectric isolating circuit (11) connects output driving circuit (12), and described output driving circuit (12) connects pressure fan (13), exhaust blower (14), UV device (15), illumination (16) and expansion of power supply (17).
2. according to the described biological safety cabinet controller of claim 1, it is characterized in that: be equipped with photoelectric isolating circuit (11) between described expansion interface circuit (10) and the output driving circuit (12), described photoelectric isolating circuit connects relay by amplifier, and the two ends of described relay are equipped with fly-wheel diode.
3. according to the described biological safety cabinet controller of claim 1, it is characterized in that: be equipped with pull-up resistor between described expansion interface circuit (10) and the remote control circuit (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041216 CN2793787Y (en) | 2005-04-28 | 2005-04-28 | Controller of biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041216 CN2793787Y (en) | 2005-04-28 | 2005-04-28 | Controller of biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793787Y true CN2793787Y (en) | 2006-07-05 |
Family
ID=36820929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041216 Expired - Fee Related CN2793787Y (en) | 2005-04-28 | 2005-04-28 | Controller of biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793787Y (en) |
-
2005
- 2005-04-28 CN CN 200520041216 patent/CN2793787Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |