CN112827033B - Integrated display and control system of electronic flowmeter of anesthesia machine - Google Patents
Integrated display and control system of electronic flowmeter of anesthesia machine Download PDFInfo
- Publication number
- CN112827033B CN112827033B CN202011591767.8A CN202011591767A CN112827033B CN 112827033 B CN112827033 B CN 112827033B CN 202011591767 A CN202011591767 A CN 202011591767A CN 112827033 B CN112827033 B CN 112827033B
- Authority
- CN
- China
- Prior art keywords
- display
- gas flow
- module
- flowmeter
- electronic
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
Landscapes
- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an integrated display and control system of an electronic flowmeter of an anesthesia machine, which comprises: the device comprises a display control identification module, a flowmeter standard setting module, an interface module, a data processing module and a display module; the flow meter standard setting module is used for setting a display reference standard; the interface module is used for communicating with a gas collecting device of the anesthesia machine, receiving the gas type and gas flow data and sending the data to the data processing module; the gas flow control device is also used for receiving a gas flow control command and sending the gas flow control command to the gas collection device; the data processing module is used for processing according to the display reference standard; the gas flow control module is also used for processing a gas flow control command and then sending the gas flow control command to the interface module; the display module is used for displaying an electric display or electric control flowmeter interface according to the display control mode and displaying gas flow data in real time; and the electronic control flow meter interface is also used for receiving a gas flow control command and sending the gas flow control command to the data processing module.
Description
Technical Field
The invention relates to electronic flowmeter display of medical equipment, in particular to an electronic flowmeter integrated display control system of an anesthesia machine.
Background
The flowmeter of the anesthesia machine indicates the flow of the fresh gas currently supplied to a patient in real time, the current electronic flowmeter is widely applied to the anesthesia machine, the defects of the traditional mechanical flowmeter are overcome, and the flowmeter is more visual and concise. The electronic flowmeter display on the software system replaces the mechanical flowmeter, the electronic display displays the mechanical flowmeter on a software interface in a virtual flowmeter graphic mode, and the electronic control not only displays the mechanical flowmeter in a virtual flowmeter, but also can realize control and regulation of the flow. The two types of electronic flow meters differ in their display and operation, as well as in their cost. It is common practice for a software interface to be used in conjunction with the display of an electronic flow meter to allow replacement, or even re-development, of flow meter software and components. It is necessary to develop a control system that can display both the electronic display and the electronically controlled flow meter.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an integrated display and control system of an electronic flowmeter of an anesthesia machine.
In order to achieve the above object, the present invention provides an integrated display and control system for an electronic flow meter of an anesthesia machine, which is characterized in that the system comprises: the flowmeter monitoring system comprises a display control identification module, a flowmeter standard setting module, an interface module, a data processing module and a display module; wherein the content of the first and second substances,
the display control identification module is used for carrying out self-checking when the system is started, identifying a display control mode according to a voltage value acquired by the gas flow sensor and identifying the display control mode as an electronic electric display flowmeter or an electronic electric control flowmeter;
the flowmeter standard setting module is used for setting a display reference standard of the gas flow pipe group;
the interface module is used for communicating with a gas collecting device of the anesthesia machine, receiving the gas type and the corresponding gas flow data and sending the data to the data processing module; the gas flow control device is also used for receiving a gas flow control command and sending the gas flow control command to the gas acquisition device;
the data processing module is used for processing the received gas type and the corresponding gas flow data according to the set display reference standard and sending the processed gas type and the corresponding gas flow data to the display module; the interface module is also used for processing the received control gas flow command and then sending the processed control gas flow command to the interface module;
the display module is used for displaying an electronic electric display flowmeter interface or an electronic electric control flowmeter interface according to the identified display control mode, displaying a corresponding gas flow tube group on the flowmeter interface according to the set display reference standard and the set gas type, and displaying gas flow data in real time; and the electronic control flow meter interface is also used for receiving a gas flow control command and sending the gas flow control command to the data processing module.
As an improvement of the above system, the specific processing procedure of the display control identification module is as follows:
starting up self-checking;
receiving a voltage value acquired by a gas flow sensor;
comparing the voltage value with a preset threshold value, and if the voltage value reaches the preset threshold value, determining that the electronic control flow meter mode is adopted; otherwise, the electronic display flow meter mode is adopted.
As an improvement to the above system, the display reference criteria for the gas flow tube set include: chinese national standards, us standards and european standards.
As an improvement of the system, the display module comprises a display control mode interface unit, a gas flow tube group unit, a data display unit and an electronic control command unit; wherein, the first and the second end of the pipe are connected with each other,
the display control mode interface unit is used for displaying an electronic display flowmeter interface or an electronic control flowmeter interface according to the identified display control mode, and the electronic control flowmeter interface comprises gas flow control;
the gas flow pipe group unit is used for displaying a corresponding gas flow pipe group on a flowmeter interface according to a set display reference standard and a set gas type;
the data display unit is used for graphically displaying the gas flow data in the gas flow tube group on the interface of the flowmeter;
and the electronic control command unit is used for receiving a command for controlling the gas flow and sending the command to the data processing module in an electronic control flow meter mode.
As an improvement of the above system, the system further includes an economic pointer display module, configured to calculate an economic pointer and graphically display the economic pointer in a columnar graph, where the columnar graph includes 4 scales from bottom to top, where a first scale is 0 and is a lower limit of the economic pointer, a second scale is a lower limit of minute oxygen consumption corresponding to the weight of the person to be tested, a third scale is an upper limit of minute oxygen consumption corresponding to the weight of the person to be tested, and a fourth scale is 4 times the lower limit of minute oxygen consumption corresponding to the weight of the person to be tested and is an upper limit of the economic pointer; and the minute oxygen consumption is the oxygen consumption per minute, and an economic indicator is calculated according to the gas flow, the leakage amount and the oxygen concentration and is displayed in a bar graph.
As an improvement of the above system, the economic pointer ECO is:
ECO = (oxygen flow + air flow + nitrous oxide flow-leak amount) × oxygen concentration.
As an improvement of the system, the system also comprises a communication alarm module which is used for giving an alarm prompt and informing the display module to output an electronic electric display flowmeter interface when the communication between the gas collecting device of the anesthesia machine and the interface module fails.
As an improvement of the system, the system further comprises a demonstration module for displaying the dynamic effect of the offline state of the system.
Compared with the prior art, the invention has the advantages that:
1. the invention is developed at one time, and can realize the switching display of a software interface only by changing the installation of the flowmeter, thereby meeting the requirement of quick production and even quick replacement of products;
2. the invention solves the problems of convenience and allopatric of modular production and solves the complexity of product assembly and the maintenance cost of the product.
Drawings
FIG. 1 is a flow chart of the integrated display control system of the electronic flowmeter of the anesthesia machine of the present invention;
FIG. 2 is a flow chart of the power-on self-test of the integrated display control system of the electronic flowmeter of the anesthesia apparatus of the present invention;
FIG. 3 is a flow chart of the display module of the electronic flowmeter integrated display control system of the anesthesia machine of the present invention;
FIG. 4 is the integrated display and control system of the electronic flow meter of the anesthesia machine of the present invention
Fig. 5 is an economic pointer display schematic diagram of the electronic flowmeter integrated display control system of the anesthesia machine.
Detailed Description
During the self-checking of the software control system during the startup operation, the real-time flow value and the electronic flowmeter mark transmitted from the lower computer are accumulated continuously for 10 times through the self-defined communication protocol with the lower computer. When the control system judges that the 10 accumulated values of the flowmeter in the communication no-alarm state are the same, one global flag is set to be effective. The control system refreshes the language information, display position and graphic icon about the flow meter in the software through the mark. And after the control system enters the main interface after self-checking is finished, the flowmeter is displayed to be in a corresponding shape. The interface displays 3 combination modes, oxygen and air combination, oxygen and nitrous oxide combination, oxygen and air and nitrous oxide combination, and configuration of oxygen and nitrous oxide matching mode. In this combination, the interface display of the control system also includes a combination mode of the economic indicator. Identified as an electronic control flow meter, the interface displays 2 combination modes, oxygen and air combination, oxygen and nitrous oxide combination, and also economic indicator combination modes. And when the lower computer is in a communication alarm state, the software control system displays the default shape of the electronic display flowmeter and gives an alarm prompt for the communication failure of the flowmeter. Meanwhile, the system keeps the redundancy design of the mechanical flowmeter, and the mechanical flowmeter can still continue to control the flow after the electronic flowmeter fails.
The technical scheme of the invention is explained in detail in the following with reference to the attached drawings.
Fig. 1 shows a flow chart of the system of the present invention.
The system comprises: the device comprises a display control identification module, a flowmeter standard setting module, an interface module, a data processing module, a display module, an economic pointer module, a communication alarm module and a demonstration module; wherein, the first and the second end of the pipe are connected with each other,
the display control identification module is used for carrying out self-checking when the system is started, identifying a display control mode according to a voltage value acquired by the gas flow sensor and identifying the display control mode as an electronic display flowmeter or an electronic control flowmeter; the method comprises the following steps:
starting up self-checking; as shown in detail in fig. 2.
Receiving a voltage value acquired by a gas flow sensor;
comparing the voltage value with a preset threshold value, and if the voltage value reaches the preset threshold value, determining that the electronic control flow meter mode is adopted; otherwise, the electronic display flow meter mode is adopted.
The standard setting module of the flowmeter is used for setting the display reference standard of the gas flow pipe group;
the interface module is used for communicating with a gas collecting device of the anesthesia machine, receiving the gas type and corresponding gas flow data and sending the data to the data processing module; the gas flow control device is also used for receiving a gas flow control command and sending the gas flow control command to the gas acquisition device;
the data processing module is used for processing the received gas type and the corresponding gas flow data according to the set display reference standard and sending the processed gas type and the corresponding gas flow data to the display module; the interface module is also used for processing the received control gas flow command and then sending the processed control gas flow command to the interface module;
the display module and the processing flow are shown in fig. 3. The electronic display flow meter interface or the electronic control flow meter interface is displayed according to the identified display control mode, and the corresponding gas flow tube group is displayed on the flow meter interface and gas flow data is displayed in real time according to the set display reference standard and the gas type; and the electronic control flow meter interface is also used for receiving a gas flow control command and sending the gas flow control command to the data processing module. The display module comprises a display control mode interface unit, a gas flow tube group unit, a data display unit and an electronic control command unit; wherein, the first and the second end of the pipe are connected with each other,
the display control mode interface unit is used for displaying an electronic display flowmeter interface or an electronic control flowmeter interface according to the identified display control mode, and the electronic control flowmeter interface comprises gas flow control;
the gas flow pipe group unit is used for displaying a corresponding gas flow pipe group on a flowmeter interface according to a set display reference standard and a set gas type;
the data display unit is used for graphically displaying the gas flow data in the gas flow tube group on the interface of the flowmeter;
and the electronic control command unit is used for receiving a command for controlling the gas flow and sending the command to the data processing module in an electronic control flow meter mode.
The flow display mode of the anesthesia machine electronic flowmeter comprises a digital display mode and a flow tube display mode. Currently, three different display standards exist worldwide for the flow tube display of anesthesia machine electronic flowmeters, namely the Chinese national standard (GB/YY), the U.S. Standard (US) and the European Standard (CE). The three display standards respectively adopt different colors to identify the flow of the three surgical common gases. The three common gases for surgery are: oxygen (O) 2 ) Nitrous oxide (N) 2 O) and medical air, wherein nitrous oxide is also known as laughing gas. In addition, the appearance effects of the three display standards are different. Including 9 combinations as shown in fig. 4.
Combination 1: oxygen + air + nitrous oxide
And (3) combination 2: oxygen + air
And (3) combination: oxygen + nitrous oxide
And (4) combination: nitrous oxide + air + oxygen
And (4) combination 5: air + oxygen
And (4) combination 6: nitrous oxide + oxygen
Combination 7: nitrous oxide + air + oxygen + economic indicator
And (4) combination 8: air + oxygen + economic pointer
Combination 9: nitrous oxide + oxygen + economic pointer
Method for assembling electronic display flowmeter, see combination 1-combination 9 of fig. 4
The combination method of the electronic control flowmeter is shown as combination 2, combination 3, combination 5, combination 6, combination 8 and combination 9 in figure 4.
The combination method of the economic pointer is shown as combination 7, combination 8 and combination 9 in figure 4. The economic pointer display effect is shown in fig. 5.
The lower limit value of the economic indicator is 0, and the upper limit value of the economic indicator is 4 times of the lower limit value of the minute oxygen consumption corresponding to the current body weight. The upper limit value and the lower limit value of the economic pointer are represented by rectangles, the rectangles are fixed in position and fixed in length and width, and the gas flow ranges represented by the rectangles are different along with the weight of a patient. And finally, calculating the position of the economic pointer in the rectangle according to the current oxygen flow value.
The economic pointer calculation formula of the electronic flowmeter is as follows:
ECO = (oxygen flow rate + air flow rate + nitrous oxide flow rate-leakage rate) = oxygen concentration
And the communication warning module is used for warning when the communication between the gas collecting device of the anesthesia machine and the interface module fails and informing the display module to output an electronic electric display flowmeter interface.
And the demonstration module is used for displaying the dynamic effect of the off-line state of the system.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.
Claims (6)
1. An integrated display and control system of an electronic flowmeter of an anesthesia machine, which is characterized by comprising: the device comprises a display control identification module, a flowmeter standard setting module, an interface module, a data processing module and a display module; wherein, the first and the second end of the pipe are connected with each other,
the display control identification module is used for carrying out self-checking when the system is started, identifying a display control mode according to the voltage value acquired by the gas flow sensor and identifying the display control mode as an electronic display flowmeter or an electronic control flowmeter;
the flowmeter standard setting module is used for setting a display reference standard of the gas flow pipe group;
the interface module is used for communicating with a gas collecting device of the anesthesia machine, receiving the gas type and corresponding gas flow data and sending the data to the data processing module; the gas flow control device is also used for receiving a gas flow control command and sending the gas flow control command to the gas collection device;
the data processing module is used for processing the received gas type and the corresponding gas flow data according to the set display reference standard and sending the processed gas type and the corresponding gas flow data to the display module; the interface module is also used for processing the received control gas flow command and then sending the processed control gas flow command to the interface module;
the display module is used for displaying an electronic electric display flowmeter interface or an electronic electric control flowmeter interface according to the identified display control mode, displaying a corresponding gas flow tube group on the flowmeter interface according to the set display reference standard and the set gas type, and displaying gas flow data in real time; the electronic control flow meter interface is also used for receiving a gas flow control command and sending the gas flow control command to the data processing module;
the specific processing procedure of the display control identification module is as follows:
starting up self-checking;
receiving a voltage value acquired by a gas flow sensor;
comparing the voltage value with a preset threshold value, and if the voltage value reaches the preset threshold value, setting the mode of the electronic control flowmeter at this time; otherwise, the mode is the electronic display flowmeter mode;
the display module comprises a display control mode interface unit, a gas flow tube group unit, a data display unit and an electronic control command unit; wherein, the first and the second end of the pipe are connected with each other,
the display control mode interface unit is used for displaying an electronic display flowmeter interface or an electronic control flowmeter interface according to the identified display control mode, and the electronic control flowmeter interface comprises the control of gas flow;
the gas flow pipe group unit is used for displaying a corresponding gas flow pipe group on a flowmeter interface according to a set display reference standard and a set gas type;
the data display unit is used for graphically displaying the gas flow data in the gas flow tube group on the interface of the flowmeter;
and the electronic control command unit is used for receiving a command for controlling the gas flow and sending the command to the data processing module in an electronic control flow meter mode.
2. The integrated display and control system for the electronic flow meter of the anesthesia machine of claim 1, wherein the display reference criteria of the gas flow tube set comprises: chinese national standards, us standards and european standards.
3. The integrated display and control system of the electronic flow meter of the anesthesia machine, which is characterized in that the system further comprises an economic pointer display module, which is used for calculating an economic pointer and graphically displaying the economic pointer in a columnar graph, wherein the columnar graph comprises 4 scales from bottom to top, the first scale is 0 and is the lower limit of the economic pointer, the second scale is the lower limit of the minute oxygen consumption corresponding to the weight of a person to be tested, the third scale is the upper limit of the minute oxygen consumption corresponding to the weight of the person to be tested, and the fourth scale is 4 times of the lower limit of the minute oxygen consumption corresponding to the weight of the person to be tested and is the upper limit of the economic pointer; and the minute oxygen consumption is the oxygen consumption per minute, and an economic indicator is calculated according to the gas flow, the leakage rate and the oxygen concentration and is displayed in a columnar graph.
4. The integrated display and control system of the electronic flow meter of the anesthesia machine of claim 3, wherein the ECO pointer ECO is:
ECO = (oxygen flow + air flow + nitrous oxide flow-leak amount) × oxygen concentration.
5. The integrated display and control system for the electronic flowmeter of the anesthesia machine of claim 1, further comprising a communication alarm module for giving an alarm prompt and informing the display module to output an interface of the electronic display flowmeter when the communication between the gas collecting device of the anesthesia machine and the interface module fails.
6. The integrated display and control system for the electronic flow meter of an anesthesia machine of claim 1, further comprising a demonstration module for dynamic effect display of the offline status of said system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591767.8A CN112827033B (en) | 2020-12-29 | 2020-12-29 | Integrated display and control system of electronic flowmeter of anesthesia machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591767.8A CN112827033B (en) | 2020-12-29 | 2020-12-29 | Integrated display and control system of electronic flowmeter of anesthesia machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112827033A CN112827033A (en) | 2021-05-25 |
| CN112827033B true CN112827033B (en) | 2023-01-10 |
Family
ID=75925156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011591767.8A Active CN112827033B (en) | 2020-12-29 | 2020-12-29 | Integrated display and control system of electronic flowmeter of anesthesia machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112827033B (en) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151518A (en) * | 1982-03-04 | 1983-09-08 | Yokogawa Hokushin Electric Corp | Mass flow meter |
| JP3637278B2 (en) * | 2000-12-20 | 2005-04-13 | Ｓｍｃ株式会社 | 2-sensor flow meter |
| BRPI0318620B1 (en) * | 2003-12-10 | 2019-12-31 | Micro Motion Inc | flow meter type identification |
| US7836882B1 (en) * | 2005-01-07 | 2010-11-23 | Vetland Medical Sales And Services Llc | Electronic anesthesia delivery apparatus |
| US11406778B2 (en) * | 2011-06-15 | 2022-08-09 | Koninklijke Philips N.V. | Unlocking a respiratory mode |
| US10576223B2 (en) * | 2011-06-15 | 2020-03-03 | Koninklijke Phlips N.V. | Unlocking a respiratory therapy mode |
| EP2682147B1 (en) * | 2012-07-06 | 2019-03-13 | General Electric Company | System for controlling the delivery of medical gases to a patient |
| US20140130906A1 (en) * | 2012-11-14 | 2014-05-15 | Mindray Ds Usa, Inc. | Systems and methods for electronically controlling the flow rates of fluids |
| CN104069576A (en) * | 2013-03-29 | 2014-10-01 | 北京谊安医疗***股份有限公司 | Implementation method and device of anesthesia machine electronic flowmeter display module |
| CN104225747A (en) * | 2013-06-08 | 2014-12-24 | 北京谊安医疗***股份有限公司 | Anesthesia machine and mechanical control electronic display flowmeter assembly thereof |
| JP6256441B2 (en) * | 2015-09-18 | 2018-01-10 | 横河電機株式会社 | Information processing apparatus and display method |
| CN105843499A (en) * | 2015-09-29 | 2016-08-10 | 维沃移动通信有限公司 | Display state switching method and terminal |
| CN105268071A (en) * | 2015-11-27 | 2016-01-27 | 刘洋 | Anaesthesia machine based on Internet of things and having precise control function |
| EP3290875A1 (en) * | 2016-08-29 | 2018-03-07 | Apator Miitors ApS | Utility flow meter with display mode controller |
| CN206311156U (en) * | 2016-12-08 | 2017-07-07 | 孝感岳能电子科技有限公司 | A kind of wide-range gas flowmeter |
| CN117919552A (en) * | 2017-12-08 | 2024-04-26 | 斐雪派克医疗保健有限公司 | Method for a breathing assistance device |
-
2020
- 2020-12-29 CN CN202011591767.8A patent/CN112827033B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112827033A (en) | 2021-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106404078B (en) | A kind of transformer online monitoring device | |
| EP3159022B1 (en) | Air leak detection device and electrically powered suction equipment provided therewith | |
| JP2003521012A (en) | Aircraft cockpit flat panel display using two CPUs | |
| CN104248438A (en) | Apparatus for determining respiratory condition | |
| US20210205568A1 (en) | Breathing assistance apparatus user interface | |
| CN112827033B (en) | Integrated display and control system of electronic flowmeter of anesthesia machine | |
| CN201837606U (en) | Online monitor for dew point and density of sulfur hexafluoride | |
| CN106895892B (en) | Display method of low-power consumption intelligent water meter | |
| CN206420492U (en) | A kind of natatorium water quality amount detection systems | |
| CN104055509A (en) | Endoluminal surgery pressure monitoring system, adjusting system and method | |
| CN104457810A (en) | Double-display micrometer gauge and micrometer gauge pointer display control method | |
| CN110897623A (en) | Intelligent sleep monitoring system with good vital sign detection effect | |
| CN103577715B (en) | Case history input unit and case history input method | |
| US20200238042A1 (en) | Anesthesia machine exhaust emission control system and control method therefor | |
| CN214097345U (en) | Calibration equipment for standard gas divider | |
| CN108414042A (en) | Water intaking amount control method, water intaking amount control system and drinking device | |
| CN115077642A (en) | Testing device for detecting flow pressure drop of proportional solenoid valve | |
| CN106054955B (en) | A kind of multiple air supply system flow balance controller | |
| CN207671968U (en) | For the acid solution detecting and controlling system in nitrocotton production process | |
| Wu et al. | Research on the aquaculture multi-parameter monitoring system | |
| CN108536038B (en) | Automatic control simulation system for centrifugal cascade process | |
| CN205493869U (en) | Flesh bone ultrasonic testing probe unit | |
| CN106166061B (en) | A kind of blood status detection device and the method for obtaining temperature change value | |
| CN103019174B (en) | Control method of oxygen respirator checking system for coal mine rescue | |
| CN107487430A (en) | Ship Propeling office instruction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |