Security control method of wood drying based on snort

Abstract

The invention discloses a safety control method based on snort for wood drying. The safety control method based on the snort for wood drying comprises the steps that a single-chip microcomputer receives processing state information sent by a sensor set and sends the processing state information to an industrial interchanger and a remote server in sequence; the remote server obtains a control signal through calculation according to the processing state information and sends the control signal to a snort device; the snort device judges whether the input control source and the output parameter of the control signal are legal or not, the control signal is discarded and a warming signal is emitted out if the snort device judges that the input control source and the output parameter of the control signal are illegal, and otherwise, the control signal is sent to the industrial interchanger and the single-chip microcomputer in sequence, and the single-chip microcomputer controls an execution mechanism to act according to the control signal. The control signal can be monitored in real time through the snort device, the snort device can judge invasion of illegal control signals and discard the illegal control signals in time when the system is attacked by an illegal input control source or an illegal input parameter, the warning signal is sent out in time so as to remind production staff, in this way, production staff can conduct safety investigation rapidly, and normal work of the system can be recovered as soon as possible.

Description

Technical field: [0001] The invention belongs to the technical field of wood processing, in particular to a snort-based safety control method for wood drying. Background technique: [0002] In the process of wood processing, drying is a very important process, and its drying effect will directly affect the quality of wood. The wood drying process refers to the process of using appropriate control technology to control the temperature and humidity in the drying kiln under the action of heat energy so that the moisture in the wood in the drying kiln is discharged by evaporation or boiling. The complete wood drying process is divided into: heating, preheating, drying, intermediate treatment, final treatment and cooling. [0003] The current wood drying method is to collect the current temperature and humidity through the serial bus through the temperature sensor and humidity sensor placed in the drying kiln, and send it to the control PC or remote server through the industrial...

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Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the control signaling received by the single-chip microcomputer in the prior art method for wood drying is unreliable, which will easily cause the increase of the drying cost of the wood and the unsafe working state of the drying kiln, thus proposing a A security control method of wood drying based on snort

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