CN115439998A - Cloud number linkage monitoring and grading alarm system for hazardous chemical warehouse - Google Patents
Cloud number linkage monitoring and grading alarm system for hazardous chemical warehouse Download PDFInfo
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Abstract
The invention relates to a cloud number linkage monitoring and grading alarm system for a hazardous chemical warehouse, which comprises a front-end sensor module, a plurality of intelligent gateways, a database and a cloud platform, wherein the front-end sensor module, the intelligent gateways, the database and the cloud platform are sequentially connected; the front-end sensor module is used for collecting environmental data of the hazardous chemical substance warehouse and sending the environmental data to each intelligent gateway, and each intelligent gateway unifies the format of the received environmental data and sends the environmental data to the cloud platform through the database; when the environmental data collected by the front-end sensor module is abnormal, an alarm is triggered, and the alarm information is sent to each intelligent gateway; each intelligent gateway judges whether the alarm information is correct according to the received environment data, and if the alarm information is correct, the alarm information is sent to the cloud platform through the database; and the cloud platform judges whether the alarm information is correct or not again according to the received environmental data. The invention can effectively ensure the safety of the hazardous chemical substance warehouse.
Description
Technical Field
The invention relates to the technical field of hazardous chemical substance monitoring, in particular to a cloud number linkage monitoring and grading alarm system for a hazardous chemical substance warehouse.
Background
Storage of hazardous chemicals is an important stage in overall process management of hazardous chemicals, and if accidents such as fire, leakage and explosion of the hazardous chemicals occur, the safety of personnel can be seriously harmed, and economic loss is caused. Therefore, the occurrence of accidents can be effectively prevented by monitoring parameters such as harmful or inflammable gas concentration, temperature and humidity in the dangerous chemical warehouse in real time.
With the continuous and deep research of the internet of things technology, the information can be acquired more conveniently and more conveniently, and the data transmission quantity is also increased continuously. However, the original information acquired through the wireless sensor network at the present stage has significant uncertainty due to the reasons that the information form and content are not uniform, the information spatio-temporal relationship is not consistent, the reporting format is not uniform, and the like. In addition, when the event judgment results, it is difficult for the staff to arrive at the scene at the first time, and therefore it is important to remotely operate the relevant equipment at the accident scene in time.
At present, the conventional monitoring method of dangerous chemicals mainly completes periodic monitoring of flammable and explosive gases, no obvious alarm measures exist under abnormal conditions, a large amount of manpower and material resources are needed to carry out regular observation, and due to the fact that monitoring equipment comes from different manufacturers, alarm modes are different, a unified and simple monitoring means cannot be formed, and an integrated information acquisition alarm system supporting event type state message activation and multivariate fusion is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cloud number linkage monitoring and grading alarm system for a hazardous chemical substance warehouse, which can effectively ensure the safety of the hazardous chemical substance warehouse through two-stage alarm judgment and fusion analysis in the judgment process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the cloud number linkage monitoring and grading alarm system for the hazardous chemical warehouse comprises a front-end sensor module, a plurality of intelligent gateways, a database and a cloud platform which are connected in sequence, wherein the cloud platform is connected with the intelligent gateways; the front-end sensor module is used for collecting environmental data of the hazardous chemical substance warehouse and sending the environmental data to each intelligent gateway, and each intelligent gateway unifies the format of the received environmental data and sends the environmental data to the cloud platform through the database;
when the environmental data collected by the front-end sensor module is abnormal, an alarm is triggered, and alarm information is sent to each intelligent gateway; each intelligent gateway judges whether the alarm information is correct according to the received environment data and sends the alarm information to the cloud platform through the database; and the cloud platform judges whether the alarm information is correct again according to the received environment data.
Each intelligent gateway judges whether the alarm information is correct according to the received environmental data, and specifically comprises the following steps: and each intelligent gateway judges whether the environmental data acquired by each sensor in the front-end sensor module exceeds the standard or not from high to low according to the preset weight, and if the environmental data acquired by at least one sensor exceeds the standard, the intelligent gateway judges that the alarm information of the front-end sensor module is correct and sends the alarm information to the database to form front-end alarm.
Each intelligent gateway judges whether the alarm information is correct according to the received environmental data, and the method further comprises the following steps: carry out joint analysis with the data that temperature sensor or humidity transducer gathered and the image data that image sensor gathered, judge whether the alarm information of front end sensor module is correct.
The data collected by the temperature sensor or the humidity sensor and the image data collected by the image sensor are subjected to combined analysis, and the method specifically comprises the following steps:
if the temperature data acquired by the temperature sensor is larger than or equal to the temperature threshold value and flame or smoke exists in the image data acquired by the image sensor, the alarm information of the front-end sensor module is correct;
if the humidity data collected by the humidity sensor is larger than or equal to the humidity threshold value and the ground humidity of the image data collected by the image sensor is larger than or equal to the ground humidity threshold value, the alarm information of the front-end sensor module is correct.
The cloud platform judges whether the alarm information is correct again according to the received environmental data, and further comprises: and the cloud platform judges whether the alarm information is correct or not by judging whether the number of the intelligent gateways causing the front-end alarm exceeds the preset number or not.
The intelligent gateway is connected with a fan and a water pump which are arranged in the hazardous chemical warehouse, and when the intelligent gateway judges that the alarm information is correct according to the received environmental data, the fan or the water pump is controlled to be started.
And when the cloud platform judges the alarm information is correct again according to the received environment data, the cloud platform starts the rear-end alarm.
When the cloud platform judges whether the alarm information is correct again according to the received environmental data, if the alarm information judged by the cloud platform is inconsistent with the alarm information judged by the intelligent gateway, the cloud platform controls the fan or the water pump to start again through the intelligent gateway.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention provides a new solution and means for storage and management of a hazardous chemical warehouse, so that various sensitive elements can be subjected to information fusion and unified management, and more efficient field monitoring and scheduling are realized; according to the invention, the possibility of false alarm of accidents is reduced through the cloud number linkage comprehensive information judgment, and meanwhile, the field linkage disposal efficiency and the information acquisition speed during the accidents are improved.
Drawings
FIG. 1 is a schematic diagram of the overall architecture of the system according to the present embodiment;
FIG. 2 is a system operation flowchart of the present embodiment;
FIG. 3 is a front end alarm flow diagram of the present embodiment;
fig. 4 is a rear-end alarm flowchart of the present embodiment.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a cloud number linkage monitoring and grading alarm system for a hazardous chemical warehouse, which comprises a front end and a rear end which are connected with each other, wherein the front end comprises a front end sensor module and an intelligent gateway which are sequentially connected, and the rear end comprises a database and a cloud platform which are sequentially connected. The front-end sensor module integrates various sensitive elements such as temperature, humidity, carbon monoxide concentration, methane concentration, wind speed, wind direction, water pressure and images in a wired and wireless communication mode, and safety supervision data such as monitoring of the internal and external environments of a warehouse, dangerous chemical stacking forms and fire rescue facilities are collected on line and multi-source data are subjected to local fusion analysis alarm through intelligent gateway summarized data, cloud platform fusion judgment and cloud number linkage.
The present embodiment is described in detail below:
the front-end sensor module is used for sensing various environmental data in the warehouse and has an event triggering function except for the wind speed and wind direction sensors; the intelligent gateway has the functions of processing front-end and back-end communication, unifying different data formats of the sensor and alarming at the front end. When abnormal data of the sensor occurs, sound and light alarm can be triggered, the intelligent gateway can control the start of equipment such as a field fan or a water pump after local judgment alarm information is correct, meanwhile, an event packet (generated by the alarm information) is sent to a database to form front-end alarm, and the cloud platform executes further judgment processing. The front end alarm of the intelligent gateway judgment is a first-level alarm, and the rear end alarm of the cloud platform judgment is a second-level alarm.
It should be noted that the intelligent gateway sends the data packet to the database, and then the data packet is transmitted to the cloud platform by the database. The data packet comprises an event packet and a period packet, the event packet is generated by alarm information of the intelligent gateway and can be uploaded to the cloud platform in real time; the periodic packet is normal sensor data acquisition information and is periodically uploaded to the cloud platform.
And further, each intelligent gateway judges whether the environmental data acquired by each sensor in the front-end sensor module exceeds the standard or not from high to low according to a preset weight, and if the environmental data acquired by at least one sensor exceeds the standard, the intelligent gateway judges that the alarm information of the front-end sensor module is correct and sends the alarm information to the database to form front-end alarm.
Further, each intelligent gateway judges whether the alarm information is correct according to the received environment data, and the method further comprises the following steps: the data collected by the temperature sensor or the humidity sensor and the image data collected by the image sensor are subjected to combined analysis, and the method specifically comprises the following steps:
(1) If the temperature data collected by the temperature sensor is larger than or equal to the temperature threshold value and the flame or smoke is detected in the image data collected by the image sensor, the alarm information of the front-end sensor module is correct;
(2) If the humidity data collected by the humidity sensor is larger than or equal to the humidity threshold value and the ground humidity of the image data collected by the image sensor is larger than or equal to the ground humidity threshold value, the alarm information of the front-end sensor module is correct.
Further, the cloud platform can judge whether the alarm information is correct or not by judging whether the number of the intelligent gateways causing the front-end alarm exceeds a preset number or not according to the judgment process of the intelligent gateways.
Furthermore, the intelligent gateway is connected with a fan and a water pump which are arranged in the hazardous chemical warehouse, and when the intelligent gateway judges that the alarm information is correct according to the received environmental data, the fan or the water pump is controlled to be started.
Further, when the cloud platform judges whether the alarm information is correct again according to the received environmental data, if the alarm information judged by the cloud platform is inconsistent with the alarm information judged by the intelligent gateway, the cloud platform controls the fan or the water pump to start again through the intelligent gateway.
Specifically, the local judgment of the intelligent gateway only collects data of a sensor accessing the intelligent gateway in order to respond to an emergency more quickly, and the cloud platform judgment is a comprehensive judgment gathering more data of other intelligent gateways. If the intelligent gateway judges that the water pump or the fan does not need to be opened and the subsequent cloud platform judges that the water pump or the fan needs to be opened, a command of opening the fan and the water pump by the intelligent gateway is issued; if the intelligent gateway judges that the water pump or the fan needs to be opened and the subsequent cloud platform judgment does not need to be opened, a command of closing the fan and the water pump by the intelligent gateway is issued.
The cloud number linkage is that after the event is determined to occur, the cloud platform rapidly sends alarm information and pushes the parameter values of various components and parts and videos on site to relevant personnel, and one or more intelligent gateways remotely issue control commands to warehouse fans, water pumps or other relay controllable devices to carry out response actions according to the type of the event.
As shown in fig. 2, the present embodiment includes the steps of:
(a) The front-end sensor module reports alarm information to the intelligent gateway;
(b) The intelligent gateway judges alarm information and issues a control command;
(c) The intelligent gateway reports the alarm information (namely the event packet) of the front-end sensor to a database;
(d) The database receives the front-end sensor alarm information and sends the front-end sensor alarm information to the cloud platform;
(e) (f) judging alarm information and linkage control by the cloud platform;
(g) Rear-end alarming and field information pushing;
(h) And processing and feedback by related personnel.
The step (b) further comprises the steps of:
(b1) Performing fusion judgment according to data of different weights of the multiple sensors;
(b2) And (c) the intelligent gateway judges whether the alarm information is correct or not, and if the alarm information is correct, the step (b 3) is executed. And if the alarm information is judged to be misinformed, sending a period packet to a database. Repeating steps (b 1) to (b 2) for each (a);
(b3) And sending the event packet to a database and outputting and controlling the opening of a water pump, a fan or other equipment through a downlink interface.
The step (e) further comprises the steps of:
(e1) Inquiring historical data, and accessing other intelligent gateway data for fusion judgment;
(e2) And (e) the cloud platform judges whether the alarm information is correct, and if so, the step (e 3) is executed. And if the alarm information is judged to be in false alarm, carrying out cloud platform display on the data. Repeating steps (e 1) to (e 2) for each (d);
(e3) And judging the accident type (such as gas leakage, explosion, smog, flame alarm and the like) and the handling measure by comparing the preset model through the cloud platform.
Said step (f) further comprises the steps of:
(f1) Issuing a data packet to one or more intelligent gateways according to the accident type and the handling measures;
(f2) The intelligent gateway outputs and controls the opening of a fan, a water pump or other equipment through a downlink interface.
Further, because the front end includes front end sensor module and intelligent gateway, for realizing the cloud number linkage monitoring system function target, intelligent gateway provides multichannel analog quantity acquisition port and switching value input/output port, also can be responsible for different grade type digital domain signal communication modes simultaneously, including the message analysis of communication protocols such as RS485 protocol, modBus protocol, TCP/IP protocol, unpack and acquire quantification data such as crucial temperature, humidity, CO/CH4 concentration, wind speed, water pressure, image, carry out the packet operation through agreed data format, for the retransmission of data provides unified protocol data format and corresponding communication mechanism. For warehouses storing different hazardous chemicals, the front end may also be equipped with different sensors, where gas sensing includes, but is not limited to, carbon monoxide, methane, and hydrogen sensors, etc.; the environment sensing comprises a temperature and humidity sensor and an air speed and wind direction sensor; the image perception includes a camera. The analog quantity sensor uniformly outputs 4-20 mA signals to the data processing unit, data are formed through formula conversion, the data are packaged according to a communication protocol and then are sent to the communication unit through the RS485 interface every 20s, and the camera is sent to the cloud platform in a wireless mode (a 4G module is arranged inside the camera and directly sent to the cloud platform). The command fed back to the intelligent gateway by the cloud platform is used for controlling the corresponding fan and water pump actions through the 8-way downlink port through the relay, so that the aim of linkage control is fulfilled.
The specific alarm flow of the front-end alarm is shown in fig. 3.
And performing multi-source data fusion by the cloud platform in the cloud number linkage fusion judgment, comparing the multi-source data fusion with a judgment strategy preset in the cloud platform to form a rear-end decision, and feeding back the decision to one or more intelligent gateways to act on the fan and the water pump. The weights between the characteristic values of the front-end sampling are different for different chemicals stored in different warehouses, so that the event judgment weight can be changed at the front end according to the change of the stored chemicals. This embodiment is exemplified by a warehouse in which CO and CH4 gas sensors are installed.
After the front-end sensor module reports to the police, intelligent gateway fuses the judgement to data according to the judgement order of predetermineeing (need notice, the standard of triggering the warning of each sensor and intelligent gateway judge whether correct standard of alarm information is different): firstly, judging the CO concentration, if the ppm is more than or equal to 30, judging that gas leaks, triggering a front-end alarm and reporting an event packet to a database; otherwise, continuously judging the CH4 concentration, if the LEL is more than or equal to 25 percent, judging that gas leaks, triggering a front end to alarm, and reporting an event packet to a database; if the temperature is more than or equal to 45 ℃ and the image detects flame or smoke, the front end is triggered to alarm and report the event packet to the database; if the humidity is larger than or equal to 80% and the image detects that the ground is wet, triggering a front-end alarm and reporting an event packet to a database, and if no abnormity exists, not triggering the alarm.
After the database sends the event packet or the period packet to the cloud platform, the historical data and the intelligent gateway data and the alarm data of the adjacent point locations are fused and judged: if the temperature and the smoke image reported by the first intelligent gateway are abnormal and the temperature and the smoke image reported by the second intelligent gateway are normal, smoking in an illegal district is considered, and false alarm is judged. If the data is abnormal data, the accident type (such as gas leakage, explosion, smoke, flame alarm and the like) is continuously judged, a downlink instruction is sent to the intelligent gateway after the accident type is confirmed, and the intelligent gateway controls a relay to start a corresponding point water pump or a fan so as to fulfill the aim of matching fire fighters to put out a fire or discharge gas generated after dangerous chemicals are leaked. In addition, for a dangerous chemical warehouse which is not frequently carried out with carrying activities, the camera can independently generate an event report after identifying the change of articles. If a front-end sensor gives false alarms for multiple times, the cloud platform can compare data of other intelligent gateways in the warehouse with historical data, and if the data are abnormal, the weight of the data can be reduced, namely the sequence is judged or the trigger threshold value of the data is increased. The alarm flow is shown in fig. 4.
Therefore, the dangerous chemical storage link sensing intelligent and supervision refined application requirements are met, the key technology of monitoring and early warning sensing is broken through, the characteristics of dangerous chemicals are extracted, identified or judged through the multi-sensing information fusion technology, and the safety of a dangerous chemical warehouse can be effectively guaranteed.
Claims (8)
1. A cloud number linkage monitoring and grading alarm system for a hazardous chemical warehouse is characterized by comprising a front-end sensor module, a plurality of intelligent gateways, a database and a cloud platform which are sequentially connected, wherein the cloud platform is connected with the intelligent gateways; the front-end sensor module is used for collecting environmental data of the hazardous chemical substance warehouse and sending the environmental data to each intelligent gateway, and each intelligent gateway unifies the format of the received environmental data and sends the environmental data to the cloud platform through the database;
when the environmental data collected by the front-end sensor module is abnormal, an alarm is triggered, and alarm information is sent to each intelligent gateway; each intelligent gateway judges whether the alarm information is correct according to the received environment data and sends the alarm information to the cloud platform through the database; and the cloud platform judges whether the alarm information is correct again according to the received environment data.
2. The cloud number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse according to claim 1, wherein each intelligent gateway judges whether alarm information is correct according to received environmental data, and specifically comprises: and each intelligent gateway judges whether the environmental data acquired by each sensor in the front-end sensor module exceeds the standard or not from high to low according to the preset weight, and if the environmental data acquired by at least one sensor exceeds the standard, the intelligent gateway judges that the alarm information of the front-end sensor module is correct and sends the alarm information to the database to form front-end alarm.
3. The cloud number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse of claim 1, wherein each intelligent gateway judges whether alarm information is correct according to received environmental data, and further comprises: and carrying out joint analysis on the data acquired by the temperature sensor or the humidity sensor and the image data acquired by the image sensor to judge whether the alarm information of the front-end sensor module is correct or not.
4. The cloud-number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse according to claim 3, wherein the data collected by the temperature sensor or the humidity sensor and the image data collected by the image sensor are subjected to joint analysis, and specifically the cloud-number linkage monitoring and grading alarm system comprises:
if the temperature data acquired by the temperature sensor is larger than or equal to the temperature threshold value and flame or smoke exists in the image data acquired by the image sensor, the alarm information of the front-end sensor module is correct;
if the humidity data collected by the humidity sensor is larger than or equal to the humidity threshold value and the ground humidity of the image data collected by the image sensor is larger than or equal to the ground humidity threshold value, the alarm information of the front-end sensor module is correct.
5. The cloud number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse according to claim 2, wherein the cloud platform judges again whether the alarm information is correct according to the received environmental data, and further comprises: and the cloud platform judges whether the alarm information is correct or not by judging whether the number of the intelligent gateways causing the front-end alarm exceeds the preset number or not.
6. The cloud number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse according to claim 1, wherein the intelligent gateway is connected with a fan and a water pump which are arranged in the hazardous chemical substance warehouse, and when the intelligent gateway judges that alarm information is correct according to received environmental data, the fan or the water pump is controlled to be started.
7. The cloud number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse of claim 1, wherein when the cloud platform judges alarm information is correct again according to the received environmental data, the cloud platform starts a rear-end alarm.
8. The cloud number linkage monitoring and grading alarm system for the hazardous chemical substance warehouse of claim 6, wherein when the cloud platform judges whether the alarm information is correct again according to the received environmental data, if the alarm information judged by the cloud platform is inconsistent with the alarm information judged by the intelligent gateway, the cloud platform controls the fan or the water pump to be started again through the intelligent gateway.
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