Ventilation and purification control system based on intelligent operating room

Abstract

The invention relates to the field of operating room ventilation, in particular to a ventilation and purification control system based on an intelligent operating room, and aims to solve the problem that a ventilation system running at constant power cannot cope with a complex and changeable dust and bacterium environment, so that the ventilation and purification efficiency is inappropriate. Comprising an air volume management and control unit, a purification rate management and control unit, a ventilation task management unit, a ventilation environment acquisition unit, a purification environment supervision unit and a purification equipment supervision unit. According to the invention, intelligent analysis is carried out according to the dust environment in the operating room and the idle time of the operating room, so that the purification work of the operating room does not influence the normal use of the operating room, the microbial environment in the operating room is monitored, and the operation of the sterilization equipment is intelligently controlled according to the microbial monitoring result; quantitative analysis is carried out according to the dust environment and the microbial environment, air volume control is achieved, the air volume can meet the rapid ventilation requirement of the dust environment, and the ventilation speed can be controlled to guarantee the sterilization effect.

Description

Technical Field

[0001] The present invention relates to the field of operating room ventilation, and in particular to a ventilation and purification control system based on a smart operating room. Background Art

[0002] The operating room is a place for patients to undergo surgery and rescue, and is an important technical department of the hospital. Surgical site infection is the second most common cause of hospital infection. In order to ensure the success rate of surgery and prevent patients from being infected, it is necessary to remove the exhaust gas from each workroom in the operating room, remove the dust and microorganisms in the room, and ensure the necessary amount of fresh air in each workroom. Therefore, the operating room needs to be ventilated. In order to ensure the comfort during ventilation, the ventilation volume of the fan needs to be controlled. At the same time, the operating room must have a set of strict and reasonable rules and regulations and aseptic operation specifications. With the rapid development of surgical technology, the work of the operating room is becoming more and more modernized.

[0003] At present, the operating room ventilation and purification control system in the prior art still has shortcomings. When the existing operating room ventilation and purification control system is used, it is generally manually preset to a constant ventilation volume, and the ventilation volume cannot be adjusted according to the actual situation. At the same time, the dust and bacteria in the operating room air mainly come from outside the operating room, accounting for 90% of the total air volume; therefore, the air quality outside the operating room directly affects the air quality inside the operating room, and the air quality outside the operating room is complex and changeable. Therefore, the ventilation and purification system with a constant ventilation volume cannot flexibly adapt to the complex and changeable dust and bacteria environment when in use, which reduces the use effect;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] In the present invention, intelligent analysis is performed based on the dust environment inside the operating room and the idle time of the operating room, so that the purification work of the operating room will not affect the normal use of the operating room, the microbial environment in the operating room is monitored, and the operation of the sterilization equipment is intelligently controlled according to the microbial monitoring results. Quantitative analysis is performed based on the dust environment and the microbial environment to achieve air volume control, so that the air volume can not only meet the rapid ventilation needs of the dust environment, but also control the ventilation speed to ensure the sterilization effect, thereby realizing comprehensive management and control of the complex dust and bacteria environment in the operating room, solving the problem that the ventilation system operating at constant power cannot cope with the complex and changeable dust and bacteria environment, resulting in inappropriate ventilation and purification efficiency, and proposing a ventilation and purification control system based on a smart operating room.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A ventilation and purification control system based on a smart operating room includes a ventilation task management unit, which can obtain ventilation tasks and generate a minimum ventilation speed of ventilation equipment based on intelligent analysis of ventilation tasks;

[0008] A ventilation environment collection unit, which can collect impurity content in the environment to be ventilated, analyze the collected impurity content, and generate an impurity content level signal;

[0009] An air volume control unit, wherein the air volume control unit can obtain the impurity content through the ventilation environment collection unit, and perform linear change analysis on the impurity content, and generate a ventilation equipment judgment signal according to the analysis result. At the same time, the air volume control unit can obtain the minimum ventilation speed of the ventilation equipment through the ventilation task management unit;

[0010] A clean environment monitoring unit, which can check pollutants in the air to be ventilated and limit the gas passing speed according to the pollutant monitoring results;

[0011] A purification equipment monitoring unit, which can count the usage of sterilization equipment in the ventilation system and make decision analysis on the maintenance cycle of the sterilization equipment based on the statistical usage;

[0012] The purification rate control unit can obtain the gas passage speed limit through the purification environment monitoring unit, and conduct a comprehensive analysis with the minimum ventilation speed in the air volume control unit to generate ventilation speed and sterilization power control.

[0013] As a preferred embodiment of the present invention, the ventilation task management unit obtains the ventilation task by manual input, and the ventilation task includes the ventilation completion time limit and the ventilation space volume. The ventilation task management unit calculates the minimum ventilation speed based on the ventilation completion time limit and the ventilation space volume. The minimum ventilation speed is the ventilation space volume divided by the ventilation completion time limit, and the minimum ventilation speed is sent to the air volume control unit.

[0014] As a preferred embodiment of the present invention, the impurities collected by the ventilation environment collection unit include particulate dust and fine fibers. The ventilation environment collection unit compares and analyzes the collected impurity contents. If the total impurity content is greater than a preset impurity content, a large amount of impurity signals are generated. If the total impurity content is less than a preset minimum impurity content, a small amount of impurity signals are generated. If the total impurity content is within a preset impurity content range, a medium amount of impurity signals are generated. The ventilation environment collection unit sends the impurity content level signal to the air volume control unit.

[0015] As a preferred embodiment of the present invention, the air volume control unit performs linear variation analysis on the impurity content in the following manner:

[0016] The air volume control unit starts timing after acquiring the impurity content level signal, and sends a collection signal to the ventilation environment collection unit after the timing reaches a preset time length. The ventilation environment collection unit generates an impurity content level signal again, and compares the newly generated impurity content level signal with the impurity content level signal generated last time. If the impurity content level signal decreases, a normal ventilation signal is generated; if the impurity content level signal increases, an abnormal ventilation signal is generated; if the impurity content level signal remains unchanged, a suspected abnormal signal is generated;

[0017] If the number of consecutive occurrences of a suspected abnormal signal is greater than a preset number threshold, an abnormal ventilation signal is generated; if the number of consecutive occurrences of a suspected abnormal signal is less than or equal to the preset number threshold, a normal ventilation signal is generated, then the suspected abnormal signal is canceled and only a normal ventilation signal is generated; if the number of consecutive occurrences of a suspected abnormal signal is less than or equal to the preset number threshold, then an abnormal ventilation signal is generated, then the suspected abnormal signal is canceled and only an abnormal ventilation signal is generated.

[0018] As a preferred embodiment of the present invention, the method for the purified environment monitoring unit to limit the gas passing speed is:

[0019] The purified environment monitoring unit detects the air at the air inlet of the ventilation equipment to obtain the pollutant content of the air, where the pollutants in the air are the number of bacteria per unit volume of air. The purified environment monitoring unit determines the sterilization time according to the pollutant content. The purified environment monitoring unit determines the gas passage speed of the sterilization section according to the length of the sterilization section and the required sterilization time, and records it as the maximum gas passage speed. The purified environment monitoring unit sends the maximum gas passage speed to the purification rate control unit.

[0020] As a preferred embodiment of the present invention, the purification rate control unit compares the maximum gas passage speed with the minimum ventilation speed of the air volume control unit. If the minimum ventilation speed is lower than the maximum gas passage speed, the air volume control unit determines the ventilation speed to any speed between the minimum ventilation speed and the maximum gas passage speed. If the minimum ventilation speed is equal to the maximum gas passage speed, the air volume control unit determines the ventilation speed as the minimum ventilation speed. If the minimum ventilation speed is higher than the maximum gas passage speed, a wind speed conflict signal is generated and sent to the purification rate control unit. After obtaining the wind speed conflict signal, the purification rate control unit increases the operating power of the sterilization section.

[0021] As a preferred embodiment of the present invention, the method for obtaining the usage of the sterilization equipment by the purification equipment supervision unit is:

[0022] Step 1: Count the real-time operating power of the sterilization equipment, and draw a curve of the operating power change of the sterilization equipment with time as the horizontal axis and the real-time power of the sterilization equipment as the vertical axis;

[0023] Step 2: The ventilation speed of the sterilization equipment during operation is obtained through the air volume control unit, and the duration of the ventilation speed is recorded. When the ventilation speed changes, the air volume control unit records the changed ventilation speed again, and re-records the duration of the new ventilation speed. The ventilation speed of the purification equipment supervision unit and the duration of each ventilation speed are analyzed by formula to generate the ventilation throughput;

[0024] Step 3: The purification equipment monitoring unit obtains the air pollutant content detected by the purification environment monitoring unit each time, and generates the sterilization equipment usage through formula analysis.

[0025] The purification equipment monitoring unit performs a threshold analysis based on the usage of the sterilization equipment. If the usage of the sterilization equipment reaches a preset maintenance threshold, a purification equipment maintenance signal is generated. If the usage of the sterilization equipment does not reach the preset maintenance threshold, no response is made.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In the present invention, when the ventilation of the operating room is controlled, intelligent analysis is performed based on the dust environment inside the operating room and the idle time of the operating room, so that the purification work in the operating room can be completed in time during the interval between operations, which not only ensures the ventilation effect of the operating room but also does not affect the normal use of the operating room.

[0028] 2. In the present invention, the microbial environment in the operating room is monitored, and the operation of the sterilization equipment is intelligently controlled according to the microbial monitoring results, so that when the operating room is ventilated, the bacteria contained in the air can be killed, the number of suspended bacteria can be reduced, and the probability of infection can be reduced.

[0029] 3. In the present invention, quantitative analysis is performed based on the dust environment and the microbial environment to achieve air volume control, so that the air volume can not only meet the rapid ventilation needs of the dust environment, but also control the ventilation speed to ensure the sterilization effect, thereby realizing comprehensive control of the complex dust and bacteria environment in the operating room.

[0030] 4. In the present invention, by conducting quantitative supervision and analysis on the ventilation equipment, a scientific analysis of the maintenance interval is conducted according to the actual frequency of use and load of the ventilation equipment to ensure that the ventilation equipment is in good working condition, thereby ensuring the ventilation and purification effect of the operating room. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0032] Figure 1 is a system block diagram of the present invention;

[0033] Figure 2 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] See also Figure 1 - Figure 2 As shown, the ventilation and purification control system based on the smart operating room includes an air volume control unit and a purification rate control unit, wherein the air volume control unit is communicatively connected to the ventilation task management unit and the ventilation environment acquisition unit, and the purification rate control unit is communicatively connected to the purification environment supervision unit and the purification equipment supervision unit;

[0037] The ventilation task management unit can obtain the ventilation task by manual input. The ventilation task includes the ventilation completion time limit and the ventilation space volume. The ventilation task management unit calculates the minimum ventilation speed according to the ventilation completion time limit and the ventilation space volume, and sends the minimum ventilation speed to the air volume control unit.

[0038] The ventilation environment collection unit collects impurities in the environment to be ventilated. The collected impurities are artificially preset pollution types, including particulate dust and fine fibers. The ventilation environment collection unit compares and analyzes the collected impurity content. If the total impurity content is greater than the preset impurity content, a large amount of impurity signal is generated. If the total impurity content is less than the preset minimum impurity content, a small amount of impurity signal is generated. If the total impurity content is within the preset impurity content range, a medium amount of impurity signal is generated. The ventilation environment collection unit sends the impurity content level signal to the air volume control unit;

[0039] The air volume control unit records the impurity content signal after obtaining it, and starts timing after obtaining the impurity content signal. After the timing reaches the preset time length, the collection signal is sent to the ventilation environment collection unit. The ventilation environment collection unit compares and analyzes the impurity content in the environment again, and compares the generated impurity content signal with the impurity content signal generated last time. If the impurity content signal decreases, it indicates that the ventilation system's filtering function for impurities is operating normally, and a normal ventilation signal is generated. If the impurity content signal increases, it indicates that when the ventilation system is operating, the impurities in the environment have increased, and a ventilation abnormality signal is generated, and the ventilation abnormality signal is transmitted through the network. The network is sent to the maintenance management personnel to remind the maintenance management personnel to check and maintain the ventilation equipment in time. If the impurity content level signal remains unchanged, a suspected abnormal signal is generated. If the number of consecutive occurrences of the suspected abnormal signal is greater than the preset number threshold, it indicates that the impurity content in the environment has not decreased under ventilation, and a ventilation abnormal signal is generated. If the number of consecutive occurrences of the suspected abnormal signal is less than or equal to the preset number threshold, a ventilation normal signal is generated, and the suspected abnormal signal is cancelled, and only a ventilation normal signal is generated. If the number of consecutive occurrences of the suspected abnormal signal is less than or equal to the preset number threshold, a ventilation abnormal signal is generated, and the suspected abnormal signal is cancelled, and only a ventilation abnormal signal is generated;

[0040] The clean environment monitoring unit uses a direct-reading microbial enrichment detection device to detect the air at the air inlet of the ventilation equipment. The detection interval is manually preset to obtain the pollutant content of the air. The pollutant of the air is the number of bacteria per unit volume of air. The clean environment monitoring unit determines the sterilization time T according to the pollutant content, T=qM, where q is a preset weight coefficient and M is the pollutant content of the air. The clean environment monitoring unit determines the gas passage speed of the sterilization section according to the length of the sterilization section and the required sterilization time, and records it as the maximum gas passage speed. The clean environment monitoring unit sends the maximum gas passage speed to the purification rate control unit;

[0041] The purification rate control unit compares the maximum gas flow rate with the minimum ventilation speed of the air volume control unit. If the minimum ventilation speed is less than the maximum gas flow rate, the air volume control unit determines the ventilation speed to any speed between the minimum ventilation speed and the maximum gas flow rate. If the minimum ventilation speed is equal to the maximum gas flow rate, the air volume control unit determines the ventilation speed as the minimum ventilation speed. If the minimum ventilation speed is greater than the maximum gas flow rate, a wind speed conflict signal is generated and sent to the purification rate control unit. After the purification rate control unit obtains the wind speed conflict signal, the operating power of the sterilization section is increased. After the operating power of the sterilization section is increased, the preset weight coefficient q increases, and the sterilization time T and the maximum gas flow rate are recalculated according to the increased new weight coefficient q until the maximum gas flow rate is the same as the minimum ventilation speed, so as to ensure that when ventilating the operating room, the ventilation air volume is sufficient and the ventilation efficiency is guaranteed, and the ventilation filtration and sterilization process meets the standards and the ventilation sterilization effect is guaranteed.

[0042] Embodiment 2:

[0043] See also Figure 1 - Figure 2 As shown, during the sterilization process, the purification equipment supervision unit obtains the usage of the sterilization equipment. The specific acquisition method is:

[0044] Step 1: Count the real-time operating power of the sterilization equipment, and draw a curve of the operating power change of the sterilization equipment with time as the horizontal axis and the real-time power of the sterilization equipment as the vertical axis;

[0045] Step 2: The ventilation speed of the sterilization equipment during operation is obtained through the air volume control unit, and the duration of the ventilation speed is recorded. When the ventilation speed changes, the ventilation speed after the air volume control unit changes again is recorded, and the duration of the new ventilation speed is re-recorded. The ventilation speed recorded by the purification equipment supervision unit each time is recorded as Fi, i=1, 2, 3, ...n, and the duration of each ventilation speed is recorded as ti. The ventilation throughput X is generated through formula analysis. ;

[0046] Step 3: The purification equipment monitoring unit obtains the air pollutant content M detected by the purification environment monitoring unit each time, and generates the sterilization equipment usage Y through formula analysis. , where S is the area enclosed by the sterilization equipment operating power change curve and the horizontal axis, k is the preset weight coefficient, and the value range of k is 0.8 to 1.0.

[0047] The purification equipment monitoring unit performs a threshold analysis based on the usage of the sterilization equipment. If the usage of the sterilization equipment reaches the preset maintenance threshold, a purification equipment maintenance signal is generated and sent to the maintenance manager through the network to remind the maintenance manager to promptly inspect the sterilization components, sterilization pipes and microporous filters in the sterilization equipment. If the usage of the sterilization equipment does not reach the preset maintenance threshold, no response will be taken.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The ventilation and purification control system based on the smart operating room is characterized by: It includes a ventilation task management unit, which can obtain ventilation tasks and generate the minimum ventilation speed of the ventilation equipment according to intelligent analysis of the ventilation tasks; A ventilation environment collection unit, which can collect impurity content in the environment to be ventilated, analyze the collected impurity content, and generate an impurity content level signal; An air volume control unit, wherein the air volume control unit can obtain the impurity content through the ventilation environment collection unit, and perform linear change analysis on the impurity content, and generate a ventilation equipment judgment signal according to the analysis result. At the same time, the air volume control unit can obtain the minimum ventilation speed of the ventilation equipment through the ventilation task management unit; A clean environment monitoring unit, which can check pollutants in the air to be ventilated and limit the gas passing speed according to the pollutant monitoring results; A purification equipment monitoring unit, which can count the usage of sterilization equipment in the ventilation system and make decision analysis on the maintenance cycle of the sterilization equipment based on the statistical usage; The purification rate control unit can obtain the gas passage speed limit through the purification environment monitoring unit, and conduct a comprehensive analysis with the minimum ventilation speed in the air volume control unit to generate ventilation speed and sterilization power control.

2. The ventilation and purification control system based on the smart operating room according to claim 1 is characterized in that: The ventilation task management unit obtains the ventilation task by manual input. The ventilation task includes the ventilation completion time limit and the ventilation space volume. The ventilation task management unit calculates the minimum ventilation speed based on the ventilation completion time limit and the ventilation space volume. The minimum ventilation speed is the ventilation space volume divided by the ventilation completion time limit. The minimum ventilation speed is sent to the air volume control unit.

3. The ventilation and purification control system based on the smart operating room according to claim 1 is characterized in that: The impurities collected by the ventilation environment collection unit include particulate dust and fine fibers. The ventilation environment collection unit compares and analyzes the collected impurity contents. If the total impurity content is greater than the preset impurity content, a large amount of impurity signals are generated. If the total impurity content is less than the preset minimum impurity content, a small amount of impurity signals are generated. If the total impurity content is within the preset impurity content range, a medium amount of impurity signals are generated. The ventilation environment collection unit sends the impurity content level signal to the air volume control unit.

4. The ventilation and purification control system based on the smart operating room according to claim 3 is characterized in that: The air volume control unit performs linear variation analysis on the impurity content in the following manner: The air volume control unit starts timing after acquiring the impurity content level signal, and sends a collection signal to the ventilation environment collection unit after the timing reaches a preset time length. The ventilation environment collection unit generates an impurity content level signal again, and compares the newly generated impurity content level signal with the impurity content level signal generated last time. If the impurity content level signal decreases, a normal ventilation signal is generated; if the impurity content level signal increases, an abnormal ventilation signal is generated; if the impurity content level signal remains unchanged, a suspected abnormal signal is generated; If the number of consecutive occurrences of a suspected abnormal signal is greater than a preset number threshold, an abnormal ventilation signal is generated; if the number of consecutive occurrences of a suspected abnormal signal is less than or equal to the preset number threshold, a normal ventilation signal is generated, then the suspected abnormal signal is canceled and only a normal ventilation signal is generated; if the number of consecutive occurrences of a suspected abnormal signal is less than or equal to the preset number threshold, then an abnormal ventilation signal is generated, then the suspected abnormal signal is canceled and only an abnormal ventilation signal is generated.

5. The ventilation and purification control system based on the smart operating room according to claim 1 is characterized in that: The method by which the purification environment monitoring unit limits the gas passing speed is: The purified environment monitoring unit detects the air at the air inlet of the ventilation equipment to obtain the pollutant content of the air, where the pollutants in the air are the number of bacteria per unit volume of air. The purified environment monitoring unit determines the sterilization time according to the pollutant content. The purified environment monitoring unit determines the gas passage speed of the sterilization section according to the length of the sterilization section and the required sterilization time, and records it as the maximum gas passage speed. The purified environment monitoring unit sends the maximum gas passage speed to the purification rate control unit.

6. The ventilation and purification control system based on the smart operating room according to claim 1 is characterized in that: The purification rate control unit compares the maximum gas passage speed with the minimum ventilation speed of the air volume control unit. If the minimum ventilation speed is lower than the maximum gas passage speed, the air volume control unit determines the ventilation speed to any speed between the minimum ventilation speed and the maximum gas passage speed. If the minimum ventilation speed is equal to the maximum gas passage speed, the air volume control unit determines the ventilation speed as the minimum ventilation speed. If the minimum ventilation speed is higher than the maximum gas passage speed, a wind speed conflict signal is generated and sent to the purification rate control unit. After obtaining the wind speed conflict signal, the purification rate control unit increases the operating power of the sterilization section.

7. The ventilation and purification control system based on the smart operating room according to claim 1 is characterized in that: The method for obtaining the usage of the sterilization equipment by the purification equipment supervision unit is: Step 1: Count the real-time operating power of the sterilization equipment, and draw a curve of the operating power change of the sterilization equipment with time as the horizontal axis and the real-time power of the sterilization equipment as the vertical axis; Step 2: The ventilation speed of the sterilization equipment during operation is obtained through the air volume control unit, and the duration of the ventilation speed is recorded. When the ventilation speed changes, the air volume control unit records the changed ventilation speed again, and re-records the duration of the new ventilation speed. The ventilation speed of the purification equipment supervision unit and the duration of each ventilation speed are analyzed by formula to generate the ventilation throughput; Step 3: The purification equipment monitoring unit obtains the air pollutant content detected by the purification environment monitoring unit each time, and generates the sterilization equipment usage through formula analysis; The purification equipment monitoring unit performs a threshold analysis based on the usage of the sterilization equipment. If the usage of the sterilization equipment reaches a preset maintenance threshold, a purification equipment maintenance signal is generated. If the usage of the sterilization equipment does not reach the preset maintenance threshold, no response is made.

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