CN113432655A - Laboratory safety real-time monitoring system - Google Patents
Laboratory safety real-time monitoring system Download PDFInfo
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- CN113432655A CN113432655A CN202110873637.1A CN202110873637A CN113432655A CN 113432655 A CN113432655 A CN 113432655A CN 202110873637 A CN202110873637 A CN 202110873637A CN 113432655 A CN113432655 A CN 113432655A
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Abstract
The invention provides a laboratory safety real-time monitoring system, which comprises: the detection module comprises a plurality of detection devices and is used for acquiring safety parameters of preset times according to a preset acquisition cycle; the main control module is connected with the detection module and used for calculating the average value of each safety parameter and sending the average value of each safety parameter to the monitoring module; the monitoring module is in wireless connection with the main control module and used for displaying the average values of the safety parameters, judging whether the laboratory is abnormal or not according to the comparison result of the average values of the safety parameters and the preset threshold values corresponding to the safety parameters, giving an alarm when the laboratory is abnormal, reminding a manager of the occurrence of safety risks in the laboratory, and taking corresponding measures in time.
Description
Technical Field
The invention relates to the technical field of safety monitoring, in particular to a laboratory safety real-time monitoring system.
Background
Along with the rapid development of higher education institutions and the diversification of the study forms, the laboratory assets of colleges and universities expand rapidly in scale, the field area of a laboratory is greatly increased, and the quantity of large-scale laboratory instruments and equipment is increased more and more, so that the safety management work of the laboratory is challenged more.
The existing laboratory safety monitoring system usually adopts video monitoring and off-line alarm devices, for example, the video monitoring is installed on each corridor and each laboratory, and a specially-assigned person is arranged to view a plurality of video monitoring in shifts to perform laboratory safety control. However, the traditional monitoring mode lacks the support of a related information management platform, so that the cost is high, manpower and material resources are wasted, dangerous situations are difficult to find in time, and the safety management of a laboratory cannot be realized in time and efficiently.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a laboratory safety real-time monitoring system, which is used to solve the technical problem that the existing laboratory safety monitoring system cannot timely and efficiently implement safety management on a laboratory.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a laboratory safety real-time monitoring system, comprising:
the detection module comprises a plurality of detection devices and is used for acquiring safety parameters of preset times according to a preset acquisition cycle;
the main control module is connected with the detection module and used for calculating the average value of each safety parameter and sending the average value of each safety parameter to the monitoring module;
and the monitoring module is wirelessly connected with the main control module and is used for displaying the average value of each safety parameter, judging whether the laboratory is abnormal or not according to the comparison result of the average value of each safety parameter and the preset threshold value corresponding to each safety parameter, and giving an alarm when the laboratory is abnormal.
Optionally, the main control module includes a first main control chip and a Lora wireless transmission module;
the first main control chip is connected with the Lora wireless transmitting module;
the first master control chip is used for calculating the average value of each safety parameter and sending each average value of each safety parameter to the monitoring module through the Lora wireless sending module.
Optionally, the detection module comprises a carbon dioxide detection device, a pyroelectric infrared sensor and a current detection device; the safety parameters comprise carbon dioxide concentration, human body infrared amplitude and current data;
the carbon dioxide detection device, the pyroelectric infrared sensor, the current detection device and the power circuit module are respectively connected with the first main control chip;
the carbon dioxide detection device is used for collecting the concentration of carbon dioxide in the laboratory environment;
the pyroelectric infrared sensor is used for acquiring human body infrared amplitude;
the current detection device is connected with a power supply circuit of the laboratory and is used for acquiring current data of the laboratory;
and the power circuit module is used for providing electric energy for the detection module and the main control module.
Optionally, the monitoring module includes a Lora wireless receiving module, a second main control chip, and a monitoring terminal;
the Lora wireless receiving module is in communication connection with the Lora wireless transmitting module, and is used for receiving the average value of each safety parameter sent by the main control module and transmitting the average value to the second main control chip;
the second master control chip is respectively connected with the Lora wireless receiving module and the monitoring terminal, and is used for sending the average value of each safety parameter to the monitoring terminal, judging whether the laboratory is abnormal or not according to the comparison result of the average value of each safety parameter and a preset threshold value corresponding to each safety parameter, and sending an alarm to the monitoring terminal when the laboratory is abnormal;
and the monitoring terminal is used for displaying the average value of each safety parameter and the alarm.
Optionally, the second main control chip is configured to send a laboratory abnormal alarm when it is determined that the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, or the human infrared amplitude average value is greater than a preset human infrared amplitude data, or the current data is lower than a preset alarm threshold, and send the average value of the carbon dioxide concentration, the average value of the human infrared amplitude, the average value of the current data, and the laboratory abnormal alarm to the monitoring terminal.
Optionally, the detection device further comprises a temperature sensor and a humidity sensor; the safety parameters also comprise temperature and humidity;
the temperature sensor and the humidity sensor are respectively connected with the first main control chip;
the temperature sensor is used for collecting the temperature of the laboratory;
the humidity sensor is used for collecting the humidity of the laboratory.
Optionally, the second main control chip is configured to determine that the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, or the human infrared amplitude average value is greater than a preset human infrared amplitude data, or the current data is lower than a preset alarm threshold, or the average value of the temperature exceeds a preset temperature threshold range, or the average value of the humidity exceeds a preset humidity threshold range, send out a laboratory abnormality alarm, and send the average value of the carbon dioxide concentration, the average value of the human infrared amplitude, the current data, the average value of the temperature, the average value of the humidity, the laboratory abnormality alarm to the monitoring terminal.
Optionally, the first main control chip and the second main control chip are both Arduino chips.
Optionally, the monitoring terminal is further in communication connection with a monitoring device installed in the laboratory.
Optionally, the monitoring device comprises a camera device supporting a call.
According to the technical scheme, the invention has the following advantages:
the invention provides a laboratory safety real-time monitoring system, which comprises: the detection module comprises a plurality of detection devices and is used for acquiring safety parameters of preset times according to a preset acquisition cycle; the main control module is connected with the detection module and used for calculating the average value of each safety parameter and sending the average value of each safety parameter to the monitoring module; and the monitoring module is wirelessly connected with the main control module and is used for displaying the average value of each safety parameter, judging whether the laboratory is abnormal or not according to the average value of the safety parameters and giving an alarm when the laboratory is abnormal.
According to the above, in the present invention, the main control module is used for controlling the detection module to collect the safety parameters of the preset times in real time according to the preset period, and when receiving the safety parameters transmitted by the detection module, calculating the average value of each safety parameter, and sending the average value of each safety parameter to the monitoring module, the monitoring module wirelessly connected with the main control module displays the average value of each safety parameter, and judges whether the laboratory is abnormal according to the comparison result of the average value of each safety parameter and the preset threshold corresponding to each safety parameter, and sends out an alarm when the laboratory is abnormal, so as to remind the manager that the safety risk occurs in the laboratory, and take corresponding measures in time, thereby solving the technical problem that the existing laboratory safety monitoring system cannot timely and efficiently realize the safety management of the laboratory, and the technical scheme provided by the present invention has lower implementation cost, the application range is wider.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a first embodiment of a laboratory safety real-time monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of a laboratory safety real-time monitoring system according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a laboratory safety real-time monitoring system, which is used for solving the problems that the existing sleep monitoring equipment is usually wearable equipment which needs to be in direct contact with a body part, discomfort is easily brought to people, and the use experience of a user is reduced.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic structural diagram of a first embodiment of a laboratory safety real-time monitoring system according to an embodiment of the present invention includes:
as shown in fig. 1, an embodiment of the present invention provides a laboratory safety real-time monitoring system, which includes a detection module 101, including a plurality of detection devices, configured to collect safety parameters for a preset number of times according to a preset collection period;
it should be noted that the data acquisition in the preset acquisition period is equal time interval acquisition. For example, if the acquisition period is set to 5 minutes and the preset number of times is 5 times, the detection module acquires data once a minute within five minutes, and sends the data acquired each time to the main control module 102.
The main control module 102 is connected with the detection module 101 and is used for calculating the average value of each safety parameter and sending the average value of each safety parameter to the monitoring module 103;
it should be noted that the detection module 101 and the main control module 102 may be electrically connected or connected by a data line, and data transmission may be performed between the two modules by a data line transmission method. The safety parameters comprise carbon dioxide concentration, human body infrared amplitude, temperature, humidity and current data. Wherein the current data can be represented by a current value. When the collected current data is 0 or very small, the current data of the laboratory is abnormal, and the laboratory circuit can be broken.
The main control module 102 controls the detection module 101 to collect safety parameters for a preset number of times according to a preset collection cycle, and when the main control module 102 receives data of carbon dioxide concentration, human body infrared amplitude, temperature, humidity and current data, calculates an average value of the carbon dioxide concentration, an average value of the human body infrared amplitude, an average value of the temperature, an average value of the humidity and an average value of the current data, and sends the data to the monitoring module 103 through wireless transmission.
The main control module 102 calculates the average value of the preset times of each security parameter, and if the preset times is 5 times, the average value of the 5 times of data is calculated for each security parameter.
And the monitoring module 103 is wirelessly connected with the main control module 102 and is used for displaying the average value of each safety parameter, judging whether the laboratory is abnormal according to the comparison result of the average value of each safety parameter and the preset threshold corresponding to each safety parameter, and giving an alarm when the laboratory is abnormal.
It should be noted that the monitoring module 103 displays the average value of the carbon dioxide concentration, the average value of the human body infrared amplitude, the average value of the temperature, the average value of the humidity, and the average value of the current data, determines whether the laboratory is abnormal according to the above data, and gives an alarm when the laboratory is abnormal.
In this embodiment, the main control module 102 is configured to control the detection module 101 to collect the safety parameters for the preset times in real time according to the preset period, and calculates the average value of each safety parameter when receiving the safety parameters transmitted by the detection module 101, and transmits the average value of each safety parameter to the monitoring module 103, the monitoring module 103, which is in wireless connection with the main control module 102, displays the average value of each safety parameter, judging whether the laboratory is abnormal or not according to the comparison result of the average value of each safety parameter and the preset threshold value corresponding to each safety parameter, and send out the police dispatch newspaper when unusual, remind managers this laboratory to appear safe risk, in time take corresponding measure, solved current laboratory safety monitoring system can not in time, realize the technical problem to the safety control in laboratory high-efficiently, and realize that the cost is lower, and the range of application is wider.
Referring to fig. 1-2, a second embodiment of a laboratory safety real-time monitoring system according to an embodiment of the present invention is shown.
The laboratory safety real-time monitoring system of this embodiment includes a detection module 101, a main control module 102, and a monitoring module 103, wherein the detection module 101 is connected with the main control module 102, and the main control module 102 is wirelessly connected with the monitoring module 103.
The detection module 101 includes a plurality of detection devices, and is configured to collect the security parameters for the preset number of times according to a preset collection period.
The detection module 101 includes a carbon dioxide detection device 1011, a pyroelectric infrared sensor 1012, a current detection device 1013, and a power supply circuit module 1014.
The main control module 102 includes a first main control chip 201 and a Lora wireless transmission module 202.
The first main control chip 201 is connected to the Lora wireless transmission module 202.
The first main control chip 201 is configured to calculate an average value of each security parameter, and send the average value of each security parameter to the monitoring module 103 through the Lora wireless sending module 202.
It should be noted that the first main control chip 201 is an Arduino chip. The Arduino chip has the advantages of rapid processing speed, easy development, good compatibility and convenient use.
The first main control chip 201 reads data collected by the carbon dioxide detection device 1011, the thermal radio infrared sensor and the current detection device 1013 in real time. In order to improve the accuracy of data acquisition, avoid the influence of experimental environment or other error factors, and reduce the amount of data exchanged between the main control module 102 and the monitoring module 103, an acquisition cycle may be set, and when the acquisition cycle is in, the first main control chip 201 continuously reads the parameters for 5 times, calculates the average value of each parameter in the 5 times of data, and outputs the average value as the final safety parameter data of the current sampling. The acquisition period can be adjusted according to actual conditions, for example, in the invention, the sampling can be set to be performed every 1 minute, after 5 times of data of the safety parameters are acquired, the average value of the data is calculated and sent to the monitoring module 103, the acquisition period and the acquisition times can be set according to actual conditions, and the data acquisition in the acquisition period is performed at equal intervals.
The carbon dioxide detection device 1011, the pyroelectric infrared sensor 1012, the current detection device 1013, and the power circuit module 1014 are respectively connected to the first main control chip 201.
The carbon dioxide detecting device 1011, the pyroelectric infrared sensor 1012, the current detecting device 1013, and the power circuit module 1014 are connected to pins of the first main control chip 201 through data lines, respectively.
And the carbon dioxide detection device is used for collecting the concentration of carbon dioxide in the laboratory environment.
It should be noted that the carbon dioxide detecting device 1011 can be an infrared absorption carbon dioxide analyzer, which uses a 4.3um wavelength as a measuring beam and a 3.9um wavelength as a reference beam. The structure of the instrument adopts a single light path and a time double-light beam detection mode to achieve the aim of double light paths. The instrument measures and detects 0.01% carbon dioxide at the lower limit. A small electromagnetic pump is arranged in the instrument, and can automatically suck ambient air into the instrument for measurement. Because carbon dioxide has an absorption peak in the 4.3um infrared region, oxygen, nitrogen, carbon monoxide and water vapor are not obviously absorbed under the wavelength, the analyzer can accurately acquire the concentration of the environmental carbon dioxide and reduce the interference of other gases.
It should be noted that the carbon dioxide detecting device needs to be installed near an intake or exhaust duct or a window or a doorway.
And the pyroelectric infrared sensor is used for acquiring the infrared amplitude of the human body.
The pyroelectric infrared sensor is an infrared sensor specially used for detecting human body radiation and comprises a detector, a thermoelectric element, an N-channel junction field effect tube, a filter lens and the like, wherein the N-channel junction field effect tube is connected into a common drain electrode form, and the top end of the sensor is provided with a window provided with the filter lens.
The principle is as follows: the central wavelength of infrared rays radiated by a human body is 9-10 mu m, the wavelength sensitivity of the detection element is almost stable and unchanged within the range of 0.2-20 mu m, the top end of the sensor is provided with a window provided with a filter lens, the filter lens can pass light with the wavelength range of 7-10 mu m and is just suitable for the detection of infrared rays radiated by the human body, and the infrared rays with other wavelengths are absorbed by the filter. Therefore, the pyroelectric infrared sensor can well detect infrared rays radiated by a human body.
In the invention, the pyroelectric infrared sensor is RD-626W: the double-element compensation structure has strong white light resistance, wifi interference resistance and radio frequency interference resistance, and the sensor is installed at a position which is 2.2 meters away from the ground or is installed at an indoor corner.
And the current detection device is connected with a power supply circuit of the laboratory and is used for acquiring current data of the laboratory.
It should be noted that the current detection device 1013 is installed in a power supply line of a laboratory, and one end of the current detection device is connected to the power supply circuit, and the other end of the current detection device is connected to the first main control chip 201, and is used to collect current data of the laboratory. The current detection device 1013 may be a current sensor. The current data is a current value.
And a power circuit module 1014 for supplying power to the detection module 101 and the main control module 102.
It should be noted that the power circuit module 1014 is used to provide power to the system, so that the system can achieve normal data acquisition, data transmission, data processing, and the like. The power circuit module 1014 adopts an LM1117 chip to stabilize voltage and ensure 5V voltage output.
The monitoring module 103 comprises a Lora wireless receiving module 301, a second main control chip 302 and a monitoring terminal 303.
The Lora wireless receiving module 301 is communicatively connected to the Lora wireless transmitting module 202.
The second main control chip 302 is connected to the Lora wireless receiving module 301 and the monitoring terminal 303, and is configured to send the average value of each security parameter to the monitoring terminal 303, determine whether the laboratory is abnormal according to a comparison result between the average value of each security parameter and a preset threshold corresponding to each security parameter, and send an alarm to the monitoring terminal 303 when the laboratory is abnormal.
It should be noted that the second main control chip 302 is an Arduino chip, and the second main control chip 302 is connected to the monitoring terminal 303, and specifically may be connected through a USB to a serial port.
Further, the second main control chip 302 is specifically configured to send out a laboratory abnormality alarm when it is determined that the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, the average value of the human infrared amplitude is greater than preset human infrared amplitude data, and the current data is lower than a preset alarm threshold, and send the average value of the carbon dioxide concentration, the average value of the human infrared amplitude, the average value of the current data, and the laboratory abnormality alarm to the monitoring terminal 303.
It should be noted that the relation between the judgment conditions that the average value of the carbon dioxide concentration is greater than the preset threshold value of the carbon dioxide concentration, the average value of the human body infrared amplitude is greater than the preset human body infrared amplitude data, and the current data is lower than the preset alarm threshold value is determined as "or".
When the concentration of carbon dioxide reaches 1500-2000PPM, people can feel asthma, headache, dizziness, inattention and mental fatigue. After 2000PPM, the thinking ability is obviously reduced. Above 5000PPM, the body functions are seriously disordered, which makes people lose consciousness and unclear consciousness. In this embodiment, the preset threshold of carbon dioxide concentration is 4000PPM, and when the collected carbon dioxide concentration exceeds the preset threshold, it indicates that the carbon dioxide concentration in the laboratory is abnormal.
Since the voltage stabilizer and the auto-power-off protection device are generally installed in a laboratory, when a short circuit or a short circuit occurs in a circuit, the circuit automatically trips, and when current data collected by the current detection device 1013 is lower than a preset alarm threshold, the current detected from the laboratory is small, or the current is not detected, the abnormal state of the laboratory circuit, such as the short circuit or the open circuit, occurs. The alarm threshold value can be set to be 1mA and the like, and the specific set numerical value of the alarm threshold value is not limited by the invention.
The body temperature of a human body is about 36-37 ℃, far infrared rays with peak values of 9-10 mu m are emitted, the pyroelectric infrared sensor 1012 is used for specially detecting the far infrared rays emitted by the human body, the far infrared rays emitted by the human body are converted into voltage signals, and whether laboratory personnel exist in a laboratory is determined. In addition, the pyroelectric infrared sensor can detect the radiation quantity received by the human body, when the radiation quantity received by the human body is more than 1000 milli-siever, the state of the human body is abnormal, the environment where the human body is located is already harmful to the human body, for example, the human body radiation abnormality caused by the human body being electrified, the received radiation is too large due to the abnormality of experimental equipment or the abnormal operation in a physiochemical laboratory and the like, and the current experimental environment is already harmful to the human body. When the collected human body infrared amplitude exceeds 1000 milli-devil, the human body state of the experimenter is abnormal.
When a person enters a monitoring area, after a detector of the pyroelectric infrared sensor detects an infrared signal emitted by a human body in front abnormally, a pin of the pyroelectric infrared sensor outputs a weak electric signal, the signal is amplified by a signal amplifying circuit to obtain a strong enough electric signal, and radiation data is output through a signal output end. Therefore, the pyroelectric sensor can detect human body infrared amplitude data, and the human body infrared amplitude data is output to the first main control chip 201 based on the connection between the signal output end of the pyroelectric infrared sensor and the first main control chip 201.
In order to increase the detection sensitivity of the detector and increase the detection distance, a fresnel lens is generally installed in front of the detector, the lens is made of transparent plastic, the upper and lower parts of the lens are divided into a plurality of equal parts, and a lens with a special optical system is manufactured, and the lens is matched with an amplifying circuit and can amplify signals by more than 70 decibels, so that the movement of people within the range of 20 meters can be measured.
In the embodiment of the present invention, when the second main control chip 302 determines that the average value of the carbon dioxide concentration reaches 4000PPM, or the average value of the human infrared amplitude is greater than 1000 mm sfer, or the current data is lower than the preset alarm threshold (open circuit or short circuit of the laboratory circuit), it indicates that an abnormal situation may occur in the laboratory, for example, the laboratory circuit is short-circuited due to non-normative electricity utilization operation of the laboratory staff, or the carbon dioxide concentration is increased due to fire caused by short circuit or short circuit, or the laboratory staff may have an emergency situation that threatens life due to electric shock or dense smoke, so the main control chip sends an alarm to the monitoring terminal 303 through the Lora sending module to remind the manager that there is an abnormal risk in the laboratory, and sends the abnormal data of the carbon dioxide concentration, the human infrared amplitude, and the current data at the same time, so as to facilitate the manager to check, and taking corresponding measures in time.
Further, the detection module 101 further includes a temperature sensor 1015 and a humidity sensor 1016, and the temperature sensor 1015 and the humidity sensor 1016 are respectively connected to the first main control chip 201.
The temperature sensor 1015 and the humidity sensor 1016 are connected to pins of the first main control chip 201 through data lines.
And a temperature sensor 1015 for collecting the temperature of the laboratory.
It should be noted that the temperature sensor 1015 and the humidity sensor 1016 may be DHT11 digital temperature and humidity sensors. The DHT11 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output. The temperature and humidity sensor has a special digital module acquisition technology and a temperature and humidity sensing technology, and ensures that a product has extremely high reliability and excellent long-term stability.
Regarding the installation position of indoor type temperature and humidity sensor, generally can not install and have obvious object to shelter from ventilation printing opacity, near heat source cold source isotopology position, its height does not have special regulation to mainly satisfy the circulation of air, the position of the indoor switch in laboratory need be referred to specific height to practice thrift the wiring.
In another embodiment of the present invention, the temperature sensor 1015 may also be a DS18B20 digital temperature sensor. The DS18B20 digital temperature sensor outputs digital signals, and has the characteristics of small volume, low hardware cost, strong anti-interference capability and high precision.
It should be noted that, under the condition that the normal operation of each detection device is not affected, each detection device of the detection module 102 and the main control module 102 may be integrated into one circuit board as much as possible, or may be installed at a more centralized location, so as to save the wiring.
It should be noted that the first main control chip 201 reads data collected by the carbon dioxide detection device 1011, the pyroelectric infrared sensor, the current detection device 1013, the temperature sensor 1015, and the humidity sensor 1016 in real time, calculates an average value of each safety parameter data collected by each detection device, and then sends the average value of each safety parameter to the second main control chip 302.
The second main control chip 302 is configured to send a laboratory abnormality alarm when it is determined that the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, the average value of the human infrared amplitude is greater than preset human infrared amplitude data, the current data is lower than a preset alarm threshold, the average value of the temperature exceeds a preset temperature threshold range, and the average value of the humidity exceeds a preset humidity threshold range, and send the average value of the carbon dioxide concentration, the average value of the human infrared amplitude, the average value of the current data, the average value of the temperature, the average value of the humidity, and the laboratory abnormality alarm to the monitoring terminal.
The relationship between the above-described determination conditions is "or".
It should be noted that, in the embodiment of the present invention, the preset temperature threshold range is 10 to 40 ℃, the humidity is relative humidity, and the preset humidity threshold range is 35% to 85%. The two preset threshold ranges can be set according to actual conditions.
It should be noted that, in the embodiment of the present invention, in addition to determining the carbon dioxide concentration, the human body infrared amplitude, and the current data, the temperature and humidity of the laboratory are increased, so as to further improve the accuracy of safety monitoring of the laboratory, specifically, the second main control chip 302 compares the average value of the temperature and the average value of the humidity with the preset temperature threshold and the preset humidity threshold, respectively, if the average value of the temperature exceeds the preset temperature threshold and the average value of the humidity exceeds the preset humidity threshold, it indicates that an abnormal condition of the experimental environment of the laboratory may occur due to improper experimental operation of laboratory staff, for example, the chemical laboratory may ignite other experimental devices due to improper experimental operation, such as the fact that the laboratory staff does not detect an alcohol lamp, resulting in temperature rise and abnormal relative humidity, causing experimental accidents. Therefore, the second main control chip 302 sends a laboratory abnormality alarm to the monitoring terminal 303, and sends the monitored data to the monitoring terminal 303, so that the administrator can confirm the alarm in time and take corresponding measures.
Further, the monitoring terminal 303 is configured to display an average value of each safety parameter and an alarm.
It should be noted that, when the second main control chip 302 sends an alarm to the monitoring terminal, the average values of the security parameters are sent together, and if there is no abnormality, only the average value data of the security parameters are sent to the monitoring terminal 303, so that the monitoring terminal 303 displays the average value data.
The monitoring terminal 303 may be a portable mobile device such as a computer device or a mobile phone. When the mobile phone is a computer device, it can be connected to the second main control chip 302 in a USB-to-serial connection manner. When the monitoring terminal 303 is a portable mobile device such as a mobile phone, human-computer interaction can be achieved by installing monitoring software capable of being in wireless communication connection with the second main control chip in the mobile phone and checking data and alarm through the software. The implementation of the monitoring software can be referred to the prior art.
When the monitoring terminal 303 receives the average value data and the abnormal alarm of each safety parameter transmitted by the second main control chip 302, the average value data and the alarm of each safety parameter are displayed, so that real-time monitoring and early warning of laboratory safety are realized.
It should be noted that, when the monitoring terminal 303 displays an alarm, specific alarm information may be displayed, such as a carbon dioxide alarm, a laboratory staff danger alarm, and the like, so that the manager can more quickly know the safety risk situation of the current laboratory and take measures in time.
In this embodiment, the main control module 102 is configured to control the detection module 101 to acquire safety parameters of a preset number of times in real time according to a preset period, calculate an average value of each safety parameter when receiving the safety parameters transmitted by the detection module 101, send the average value of each safety parameter to the monitoring module 103, display the average value of each safety parameter on the monitoring module 103 in wireless connection with the main control module 102, determine whether a laboratory is abnormal according to a comparison result between the average value of each safety parameter and a preset threshold corresponding to each safety parameter, and send an alarm when the laboratory is abnormal. In the embodiment of the invention, the monitoring system provided by the invention can effectively and real-timely perform safety control on the laboratory, and timely send an alarm to remind a manager of safety risk of the laboratory when an abnormal state occurs, so that the manager can timely take corresponding measures without arranging special turns of the manager to check video monitoring, the workload of the laboratory is greatly reduced, the labor and material cost is reduced, the implementation cost is lower, the application range is wider, and the technical problem that the existing laboratory safety monitoring system cannot timely and efficiently realize safety management on the laboratory is solved.
In addition, the Arduino chip is used as the main control chip, and the Lora communication module is used for remote data transmission and communication, so that the laboratory in a larger range can be monitored in real time, the running stability of the system and the data processing speed are improved, and the laboratory safety real-time monitoring system provided by the invention has the advantages of wider application range, higher stability and higher accuracy.
Further, the monitoring terminal 303 may be connected to an optical alarm and/or an audio alarm, and when receiving the alarm, the optical alarm and/or the audio alarm may respond in time and send out an optical and audio prompt to prompt a manager.
In another embodiment of the present invention, the monitoring terminal 303 is further connected to a monitoring device installed in a laboratory, wherein the monitoring device is a camera device supporting a call.
It should be noted that, in order to further improve the accuracy and real-time of the laboratory safety and reduce the error condition caused by the system device, when receiving the alarm sent by the second main control chip 302, the manager can open the monitoring device of the laboratory in time through the monitoring terminal 303, and start the call function, and call with the laboratory in the laboratory, remind the laboratory of the risk condition of the laboratory at present, and confirm whether the alarm has an error.
In another embodiment of the present invention, when the preset acquisition period is within, the main control module 102 receives data of each safety parameter sent by the detection module 101 in real time, when it is determined that the numerical fluctuation of a certain acquired parameter is large, the main control module 102 immediately sends an alarm signal to the monitoring module 103, the monitoring module 103 triggers a pre-alarm mechanism when receiving the alarm signal, when the next preset acquisition period is reached, if the monitoring module 103 does not receive an average value of each safety parameter sent by the main control module 102, it indicates that there is a possibility that an abnormal problem may occur in the main control module 102 and the detection module 10 at this time, and the monitoring module 103 immediately sends an alarm.
For example, when the data is in the preset collection period, the detection module 101 transmits the collected data to the main control module 102 in real time, when the main control module 102 receives the data collected by the detection module 101 for the second time, it is determined from the data of this time that the difference between the carbon dioxide concentration and the average value of the carbon dioxide concentration in the previous period is great, indicating that an abnormal behavior may have occurred in the laboratory, the main control module 102 immediately transmits an alarm signal indicating that the carbon dioxide concentration is abnormal to the monitoring module 103, then continues to wait for the detection module to transmit the data of the safety parameters, calculates the average value of the data, and after receiving the alarm signal, the second main control chip 302 in the monitoring module 103 receives the condition that the second main control chip 302 does not receive the average value of each safety parameter transmitted by the first main control chip 201 when the next preset collection period is reached, the second main control chip 302 immediately sends an alarm to the monitoring terminal 303, which indicates that an abnormal situation has occurred in the laboratory and has affected the normal operation of the detection module 101 and the main control module 102, and if a fire occurs in a preset acquisition period, the detection module 101 and the main control module 201 are burnt, so that the main control module 102 cannot send data to the monitoring module 103 in time.
In this embodiment, through the warning mechanism constructed by the first main control chip 201 and the second main control chip 302, the problem that the main control module 201 cannot timely transmit data to the monitoring module 103 for timely warning when the abnormal time point of the laboratory is just in the preset collection period and the abnormal condition endangers the abnormal work of the detection module 101 and the main control module 201 is avoided, and the safety monitoring timeliness and effectiveness of the laboratory are further improved.
Further, in order to improve timeliness of safety monitoring of the laboratory, when a next preset acquisition cycle is reached, if the monitoring module 103 does not receive an average value of each safety parameter sent by the main control module 102, an alarm can be directly sent out to remind a manager that the working states of the detection module and the main control module in the laboratory are abnormal, so that the manager can timely troubleshoot problems and ensure normal operation of the system.
In another embodiment of the present invention, the detection module 101 and the main control module 102 may be integrated into a circuit board, or packaged into a detection device with data processing and transmission functions. The device is not limited in number, can be installed in a laboratory needing to be monitored according to actual needs, and the specific setting position can be determined according to actual conditions. For example, when safety monitoring is performed on all laboratories of a school, a plurality of devices integrating the detection module 101 and the main control module 102 are placed in each laboratory, each device is labeled, label information is written into the first main control chip 201 in advance, when the first main control chip 201 of the main control module 102 sends alarm and abnormal data information, corresponding label information is sent together, a manager can quickly locate a laboratory which is likely to cause an accident according to the label information and the alarm information displayed in the monitoring terminal 303, and perform troubleshooting action in time, so that safety real-time monitoring on laboratories in a wider range is realized. In a third embodiment of the present invention, a method for real-time monitoring of laboratory safety is provided, which is applied to a laboratory safety real-time monitoring system according to the present invention, and the method includes:
401. and acquiring safety parameters of preset times in real time according to a preset period.
It should be noted that the safety parameters include carbon dioxide concentration, human body infrared amplitude, current state, temperature and humidity.
402. Calculating the average value of each safety parameter.
403. And judging whether the laboratory is abnormal or not according to the average value of the safety parameters, and giving an alarm when the laboratory is abnormal.
It should be noted that, after the average value of the safety parameters is calculated, the average value of each safety parameter is compared with the preset threshold corresponding to each safety parameter, whether the laboratory is abnormal or not is judged according to the comparison result, and an alarm is given when the laboratory is abnormal.
In the embodiment of the present invention, when the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, the average value of the human infrared amplitude is greater than preset human infrared amplitude data, the current state is in a preset state, the average value of the temperature exceeds a preset temperature threshold range, and the average value of the humidity exceeds a preset humidity threshold range, a laboratory abnormality alarm is issued, and the average value of the carbon dioxide concentration, the average value of the temperature, the average value of the humidity, and the laboratory abnormality alarm are sent to the monitoring terminal 303.
After receiving the alarm, the manager opens the monitoring device of the laboratory corresponding to the alarm through the monitoring terminal 303, opens the call mode of the monitoring device, communicates with the experimenter, and checks the reason for the alarm. If the laboratory staff is in the laboratory, the communication mode of the monitoring equipment can be opened to communicate with the laboratory staff and quickly confirm the situation.
In another embodiment of the invention, the alarm can be early warned in a grading way according to the combination form of the abnormal data, thereby reminding the manager to process in a targeted way and improving the working efficiency of the manager. For example:
when human infrared amplitude data appear unusually, set up the alarm that sends as the first class alarm, show that laboratory environment probably causes life threat to the experimenter, the condition is very urgent, needs to stand immediately and handle.
When any one of the data of the carbon dioxide concentration, the temperature, the humidity and the current state is abnormal and the infrared amplitude of the human body is normal (someone exists in a laboratory), the sent alarm is set as a secondary alarm, which indicates that the laboratory environment is abnormal but does not threaten the experimenters and needs to be reminded as soon as possible.
When any one of the data of the carbon dioxide concentration, the temperature, the humidity and the current state is abnormal and the infrared amplitude of the human body is normal (no person exists in a laboratory), the sent alarm is set to be a three-level alarm, so that the condition that the environment of the laboratory is abnormal and no person exists in the laboratory is required to be checked as soon as possible.
It should be noted that, whether a person exists in the laboratory can be judged according to the data of the infrared amplitude of the human body.
According to the embodiment of the invention, whether the laboratory is abnormal or not is judged according to the safety parameters of the laboratory collected in real time, an abnormal alarm is given when the laboratory is abnormal, a manager is reminded that the safety risk of the laboratory occurs, and corresponding measures are taken in time, so that the technical problem that the safety management of the laboratory cannot be realized in time and efficiently by the conventional laboratory safety monitoring system is solved. Meanwhile, by setting the alarm level, managers can conveniently and rapidly know abnormal risk conditions.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus, and method can be implemented in other ways.
The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A laboratory safety real-time monitoring system, comprising:
the detection module comprises a plurality of detection devices and is used for acquiring safety parameters of preset times according to a preset acquisition cycle;
the main control module is connected with the detection module and used for calculating the average value of each safety parameter and sending the average value of each safety parameter to the monitoring module;
and the monitoring module is wirelessly connected with the main control module and is used for displaying the average value of each safety parameter, judging whether the laboratory is abnormal or not according to the comparison result of the average value of each safety parameter and the preset threshold value corresponding to each safety parameter, and giving an alarm when the laboratory is abnormal.
2. The system of claim 1, wherein the master control module comprises a first master control chip, and a Lora wireless transmission module;
the first main control chip is connected with the Lora wireless transmitting module;
the first master control chip is used for calculating the average value of each safety parameter and sending each average value of each safety parameter to the monitoring module through the Lora wireless sending module.
3. The system of claim 2, wherein the detection module comprises a carbon dioxide detection device, a pyroelectric infrared sensor, a current detection device, a power circuit module; the safety parameters comprise carbon dioxide concentration, human body infrared amplitude and current data;
the carbon dioxide detection device, the pyroelectric infrared sensor, the current detection device and the power circuit module are respectively connected with the first main control chip;
the carbon dioxide detection device is used for collecting the concentration of carbon dioxide in the laboratory environment;
the pyroelectric infrared sensor is used for acquiring human body infrared amplitude;
the current detection device is connected with a power supply circuit of the laboratory and is used for acquiring current data of the laboratory;
and the power circuit module is used for providing electric energy for the detection module and the main control module.
4. The system of claim 3, wherein the monitoring module comprises a Lora wireless receiving module, a second main control chip and a monitoring terminal;
the Lora wireless receiving module is in communication connection with the Lora wireless transmitting module, and is used for receiving the average value of each safety parameter sent by the main control module and transmitting the average value to the second main control chip;
the second master control chip is respectively connected with the Lora wireless receiving module and the monitoring terminal, and is used for sending the average value of each safety parameter to the monitoring terminal, judging whether the laboratory is abnormal or not according to the comparison result of the average value of each safety parameter and a preset threshold value corresponding to each safety parameter, and sending an alarm to the monitoring terminal when the laboratory is abnormal;
and the monitoring terminal is used for displaying the average value of each safety parameter and the alarm.
5. The system according to claim 4, wherein the second main control chip is configured to send a laboratory abnormality alarm when it is determined that the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, or the average value of the human body infrared amplitude is greater than preset human body infrared amplitude data, or the current data is lower than a preset alarm threshold, and send the average value of the carbon dioxide concentration, the average value of the human body infrared amplitude, the average value of the current data, and the laboratory abnormality alarm to a monitoring terminal.
6. The system of claim 4, wherein the detection device further comprises a temperature sensor, a humidity sensor; the safety parameters also comprise temperature and humidity;
the temperature sensor and the humidity sensor are respectively connected with the first main control chip;
the temperature sensor is used for collecting the temperature of the laboratory;
the humidity sensor is used for collecting the humidity of the laboratory.
7. The system according to claim 6, wherein the second main control chip is configured to send a laboratory abnormality alarm when it is determined that the average value of the carbon dioxide concentration is greater than a preset carbon dioxide concentration threshold, or the average value of the human body infrared amplitude is greater than a preset human body infrared amplitude data, or the current data is lower than a preset alarm threshold, or the average value of the temperature exceeds a preset temperature threshold range, or the average value of the humidity exceeds a preset humidity threshold range, and send the average value of the carbon dioxide concentration, the average value of the human body infrared amplitude, the current data, the average value of the temperature, the average value of the humidity, and the laboratory abnormality alarm to a monitoring terminal.
8. The system of claim 4, wherein the first master control chip and the second master control chip are both Arduino chips.
9. The system of any one of claims 1-8, wherein the monitoring terminal is further communicatively coupled to a monitoring device installed in the laboratory.
10. The system of claim 9, wherein the monitoring device comprises a call-enabled camera device.
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| CN202110873637.1A CN113432655A (en) | 2021-07-30 | 2021-07-30 | Laboratory safety real-time monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817598A (en) * | 2021-11-23 | 2021-12-21 | 济宁市中蒜网络科技有限公司 | Remote detection method and system for parameter abnormity of bio-pharmaceutical fermentation production line |
| CN114926969A (en) * | 2022-05-10 | 2022-08-19 | 国网湖北省电力有限公司营销服务中心(计量中心) | Intelligent laboratory safety control system and method |
| CN116434496A (en) * | 2023-06-14 | 2023-07-14 | 西安四腾环境科技有限公司 | Safety monitoring alarm device is used in laboratory |
| CN117392614A (en) * | 2023-12-11 | 2024-01-12 | 广州泛美实验室系统科技股份有限公司 | Laboratory safety risk intelligent detection method and device and emergency safety cabinet |
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2021
- 2021-07-30 CN CN202110873637.1A patent/CN113432655A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817598A (en) * | 2021-11-23 | 2021-12-21 | 济宁市中蒜网络科技有限公司 | Remote detection method and system for parameter abnormity of bio-pharmaceutical fermentation production line |
| CN114926969A (en) * | 2022-05-10 | 2022-08-19 | 国网湖北省电力有限公司营销服务中心(计量中心) | Intelligent laboratory safety control system and method |
| CN116434496A (en) * | 2023-06-14 | 2023-07-14 | 西安四腾环境科技有限公司 | Safety monitoring alarm device is used in laboratory |
| CN117392614A (en) * | 2023-12-11 | 2024-01-12 | 广州泛美实验室系统科技股份有限公司 | Laboratory safety risk intelligent detection method and device and emergency safety cabinet |
| CN117392614B (en) * | 2023-12-11 | 2024-03-29 | 广州泛美实验室系统科技股份有限公司 | Laboratory safety risk intelligent detection method and device and emergency safety cabinet |
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