CN214278719U - Large-scale liquid nitrogen storage box remote monitering system of stem cell storehouse - Google Patents
Large-scale liquid nitrogen storage box remote monitering system of stem cell storehouse Download PDFInfo
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- CN214278719U CN214278719U CN202120783949.9U CN202120783949U CN214278719U CN 214278719 U CN214278719 U CN 214278719U CN 202120783949 U CN202120783949 U CN 202120783949U CN 214278719 U CN214278719 U CN 214278719U
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Abstract
A remote monitoring system for a large-scale liquid nitrogen storage tank of a stem cell bank. The system comprises a data processing center, a display, a temperature sensor, a liquid level sensor, a detection module and a cloud server; the utility model discloses the effect: 1. the detection precision is improved, the stability of the data processing center is enhanced, the process of secondary confirmation of the working personnel on site can be reduced, and a large amount of manpower is saved. 2. The components have simple structures, and the service life can reach 10 years under the normal use condition; and when a fault occurs, the maintenance is easier. 3. The liquid level and the temperature of all liquid nitrogen storage tanks in the stem cell bank can be monitored in a centralized manner, and the management flow is optimized. 4. By means of the cloud server, the mobile phone and the tablet can be checked on line in real time.
Description
Technical Field
The utility model belongs to the technical field of the supporting system of stem cell storehouse, especially, relate to a extensive liquid nitrogen storage box remote monitering system of stem cell storehouse.
Background
The stem cell bank is used for freezing stem cell specimens and mainly comprises a liquid nitrogen storage tank, a liquid nitrogen storage box and a liquid nitrogen pipeline. When the liquid level in the liquid nitrogen storage tank is reduced to a preset alarm line, the liquid nitrogen storage tank is responsible for providing a liquid nitrogen source, the liquid nitrogen pipeline is responsible for conveying liquid nitrogen, the liquid nitrogen storage tank is responsible for storing stem cell specimens, and the stem cell specimens can be completely soaked in the liquid nitrogen to keep the activity of the stem cells.
Because the number of the liquid nitrogen storage tanks in the small-scale stem cell bank is small, the temperature display and liquid level display data of the liquid nitrogen storage tanks are generally directly read by bank management personnel in a polling mode, but the real-time liquid level cannot be accurately observed. For large and medium-sized stem cell banks, the liquid level and temperature of the liquid nitrogen storage tank are generally monitored by a monitoring system. The monitoring system of the general stem cell bank feeds back detection signals to the monitoring device through a temperature platinum resistance probe and a liquid level pressure sensor which are arranged in a liquid nitrogen storage tank, and the monitoring device receives the detection signals of the temperature and the liquid level and displays the current temperature and the current liquid level value on an LED screen after the detection signals of the temperature and the liquid level are processed by a transmission equipment collector and a concentrator. However, the adoption of the liquid level pressure sensor has the following problems:
1. the liquid level detection precision interval is +/-20 mm, and the error is large;
2. the liquid level pressure sensor is easily influenced by ice blockage in the use process, namely, the orifice of the pressure communicating pipe is blocked after ice slag is accumulated at the bottom of the liquid nitrogen storage tank, so that the pressure sensing capability is reduced, and the liquid level detection is abnormal; 3. the liquid level pressure sensor cannot correctly feed back the actual liquid level under the condition that the liquid nitrogen storage tank is connected with the air pipe and air leaks;
meanwhile, the transmission equipment of the monitoring system adopts the collector to cooperate with the concentrator to perform point-to-point receiving, and the following problems also exist:
1. because the signal is collected in a point-to-point manner by the collectors, and then the signals are transmitted to the central collector through the collectors, a plurality of groups of collectors need to be connected with the signals in series and then received through one central collector. Therefore, when a fault occurs, the fault point cannot be found in time, but all collectors to which the concentrator belongs need to be checked one by one, so that great difficulty is caused to maintenance work;
2. the screening capability of the collector to the invalid signals of the surrounding environment is poor, and when interference exists in the outside, error signals can occur with a certain probability, so that false alarm is caused.
3. The monitoring system can only check the liquid level and temperature display conditions through an industrial personal computer, cannot check through WI FI signals such as a mobile phone and a tablet, and cannot monitor in real time.
This kind of extensive stem cell monitoring system not only to liquid level, the temperature monitoring in the liquid nitrogen holding vessel in the stem cell storehouse untimely, inaccurate, still exist because the false alarm problem that the signal is unstable causes, and then cause stem cell storehouse managers work load to increase, be unfavorable for the whole management of stem cell storehouse.
Disclosure of Invention
In order to solve the above problem, an object of the present invention is to provide a remote monitoring system for large-scale liquid nitrogen storage tank of stem cell bank. The system is provided with the independent high-precision temperature sensor in the liquid nitrogen storage tank, so that the real-time temperature of the liquid nitrogen storage tank at different liquid level heights can be detected more accurately, and the liquid level sensor which is also provided adopts the independent capacitance liquid level meter, so that the detection precision is improved, and the influence of ice blockage of the liquid nitrogen storage tank on a monitoring value is avoided; adopt the mode transmission data of cloud platform simultaneously, reduced the interference of process-independent signal, compare with traditional stem cell storehouse, improved the detection precision of temperature and liquid level, convenient maintenance, realize real-time data monitoring, make things convenient for managers in time to know liquid nitrogen bin operational aspect.
In order to achieve the above object, the utility model provides a large-scale liquid nitrogen storage box remote monitering system of stem cell bank includes: the system comprises a data processing center, a display, a temperature sensor, a liquid level sensor, a detection module and a cloud server; a temperature sensor and a liquid level sensor are respectively arranged in each liquid nitrogen storage tank, and the liquid level sensors are connected with the detection modules; each data processing center is respectively connected with a display, a temperature sensor and a detection module; and the plurality of data processing centers are simultaneously connected with the cloud server.
The data processing center adopts STM32L152 singlechip.
The display adopts an LED digital display device.
The temperature sensor adopts an industrial PT100 sensor.
The liquid level sensor adopts a capacitance liquid level meter Hp-Lh 500.
The cloud server is connected with mobile communication equipment including a mobile phone and a tablet personal computer of a manager through an internet platform.
The utility model provides a large-scale liquid nitrogen storage box remote monitering system of stem cell bank has following beneficial effect:
1. the detection precision is improved, the stability of the data processing center is enhanced, the process of secondary confirmation of the working personnel on site can be reduced, and a large amount of manpower is saved.
2. The components have simple structures, and the service life can reach 10 years under the normal use condition; and when a fault occurs, the maintenance is easier.
3. The liquid level and the temperature of all liquid nitrogen storage tanks in the stem cell bank can be monitored in a centralized manner, and the management flow is optimized.
4. By means of the cloud server, the mobile phone and the tablet can be checked on line in real time.
Drawings
FIG. 1 is a schematic diagram of a large-scale liquid nitrogen storage tank remote monitoring system for stem cell banks.
FIG. 2 is a schematic diagram showing the connection of monitor signals between liquid nitrogen storage tanks of a stem cell bank.
Detailed Description
The following describes in detail the large-scale liquid nitrogen storage tank remote monitoring system for stem cell banks according to the present invention with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the utility model provides a stem cell bank liquid nitrogen storage box remote monitering system includes: the system comprises a data processing center 1, a display 2, a temperature sensor 3, a liquid level sensor 4, a detection module 5 and a cloud server 6; a temperature sensor 3 and a liquid level sensor 4 are respectively arranged in each liquid nitrogen storage tank, and the liquid level sensor 4 is connected with a detection module 5; each data processing center 1 is respectively connected with a display 2, a temperature sensor 3 and a detection module 5; the plurality of data processing centers 1 are simultaneously connected to the cloud server 6.
As shown in fig. 2, the cloud server 6 is connected to a mobile communication device of a stem cell bank manager, such as a mobile phone, a tablet computer, etc., through an internet platform 7.
The monitoring method of the large-scale liquid nitrogen storage box remote monitoring system of the stem cell bank provided by the utility model is explained as follows:
firstly, adding a set of independent liquid level and temperature sensors in each liquid nitrogen storage tank in a stem cell bank.
Firstly, the temperature sensor 3 and the liquid level sensor 4 shown in FIG. 1 penetrate through the installation hole on the liquid nitrogen storage tank and are fixed on the spring sheet reserved in the liquid nitrogen storage tank, and the installation mode can not damage the liquid nitrogen storage tank.
Then, calibrating a full point and a zero point of the liquid level sensor 4, namely calibrating a capacitance value when the full point is calibrated even if the liquid level sensor 4 is completely immersed in liquid nitrogen; then, the liquid level sensor 4 is completely exposed in the air, and the capacitance value at the zero point is calibrated; in the using process, liquid nitrogen enters the liquid level sensor 4 from the upper hole and the lower hole, capacitance values of the liquid nitrogen at different liquid levels are collected in real time by the calibrated liquid level sensor, amplified and filtered, and data are transmitted to the data processing center 1 through the detection module 5; the liquid level sensor 4 adopts a capacitance liquid level meter Hp-Lh 500; the device uses stainless steel materials, can stably work in a low-temperature environment, has high detection precision which can reach +/-5 mm, fundamentally solves the influence of factors such as temperature, humidity, pressure, material conductivity and the like on the measurement process, and has extremely high anti-interference performance and reliability. Highly corrosive liquids such as acids, bases, salts, sewage, etc. can be measured.
Meanwhile, the temperature of the liquid nitrogen is collected in real time by the temperature sensor 3, and the data is transmitted to the data processing center 1. The temperature sensor 3 adopts a high-precision industrial PT100 sensor, has the accuracy full range (-196 ℃ to 200 ℃) plus or minus 0.5 ℃, and can ensure the reliability of temperature recording.
And secondly, transmitting signals detected by the liquid level sensor and the temperature sensor, and mainly comprising collecting and uploading.
The data processing center 1 is a data processing device with a microprocessor as a core and is used for controlling tasks of the system, such as field data acquisition, processing, storage, display, remote communication and the like; the display 2 is used for displaying various information and adopts an LED digital display device. The temperature sensor 3 is a temperature information collector and is used for converting temperature information into a signal which can be identified by a computer; the liquid level sensor 4 is a liquid level position information collector and is used for converting liquid level position information into an electric signal; the detection module 5 is an interface circuit of the liquid level sensor 4 and is used for completing signal conversion required between the liquid level sensor 4 and the data processing center 1; the cloud server 6 is a computing unit established on a cloud computing service platform, has the functions of computing, storing, networking and the like of a traditional computer, and is used for data viewing, overrun alarming and data tracing remote management.
The data processing center 1 adopts an STM32L152 single chip microcomputer. The GPRS Internet of things technology is adopted as a communication mode and is connected with the cloud server 6, the data processing center 1 receives the detection data, processes and stores the detection data, displays the detection data on the display 2 in real time, automatically synchronizes the processed detection data to the cloud server 6, can record the acquired liquid level and temperature in real time, and realizes data traceability; the method can effectively connect equipment with higher network connection requirements, and stably transmit data based on the reliable mobile base station. Third, integral connection of stem cell bank monitoring system data
As shown in fig. 2, the utility model provides a extensive liquid nitrogen storage box remote monitering system of stem cell storehouse can pass through the temperature of whole liquid nitrogen storage box, on level signal passes through data processing center 1 and uploads cloud server 6 in the collection, issue stem cell storehouse pipe personnel's mobile communication equipment through internet platform 7 by cloud server 6 again, for example on cell-phone, the panel computer, stem cell storehouse pipe personnel of being convenient for carry out the overall monitoring to the temperature and the liquid level of all liquid nitrogen storage boxes in the stem cell storehouse.
The utility model provides a stem cell storehouse extensive liquid nitrogen storage box remote monitering system theory of operation is exactly through liquid level, temperature sensor detection data back, transmits to data processing center, uploads to cloud server again, establishes ties each liquid nitrogen bin data aftertreatment by cloud server and issues to stem cell storehouse pipe personnel, finally reaches the promotion of stem cell storehouse management, cost of maintenance's decline.
In summary, the present invention is not limited to the above embodiments, and other embodiments can be proposed by those skilled in the art within the technical teaching of the present invention, but all such embodiments are included in the scope of the present invention.
Claims (6)
1. The utility model provides a large-scale liquid nitrogen storage box remote monitering system of stem cell storehouse which characterized in that: the stem cell bank liquid nitrogen storage box remote monitoring system comprises: the system comprises a data processing center (1), a display (2), a temperature sensor (3), a liquid level sensor (4), a detection module (5) and a cloud server (6); a temperature sensor (3) and a liquid level sensor (4) are respectively arranged in each liquid nitrogen storage tank, and the liquid level sensor (4) is connected with a detection module (5); each data processing center (1) is respectively connected with a display (2), a temperature sensor (3) and a detection module (5); the data processing centers (1) are connected with the cloud server (6) at the same time.
2. The stem cell bank large-scale liquid nitrogen storage tank remote monitoring system according to claim 1, characterized in that: the data processing center (1) adopts an STM32L152 single chip microcomputer.
3. The stem cell bank large-scale liquid nitrogen storage tank remote monitoring system according to claim 1, characterized in that: the display (2) adopts an LED digital display device.
4. The stem cell bank large-scale liquid nitrogen storage tank remote monitoring system according to claim 1, characterized in that: the temperature sensor (3) adopts an industrial PT100 sensor.
5. The stem cell bank large-scale liquid nitrogen storage tank remote monitoring system according to claim 1, characterized in that: the liquid level sensor (4) adopts a capacitance liquid level meter Hp-Lh 500.
6. The stem cell bank large-scale liquid nitrogen storage tank remote monitoring system according to claim 1, characterized in that: the cloud server (6) is connected with mobile communication equipment including a mobile phone and a tablet personal computer of a manager through an internet platform (7).
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| CN202120783949.9U CN214278719U (en) | 2021-04-16 | 2021-04-16 | Large-scale liquid nitrogen storage box remote monitering system of stem cell storehouse |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113994955A (en) * | 2021-12-31 | 2022-02-01 | 江苏和泽干细胞基因工程有限公司 | Stem cell position storage and determination method and device of liquid nitrogen preservation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113994955A (en) * | 2021-12-31 | 2022-02-01 | 江苏和泽干细胞基因工程有限公司 | Stem cell position storage and determination method and device of liquid nitrogen preservation system |
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