A New Metering Data Acquisition System

Abstract

The present invention provides a novel metering data collection system, which relates to the technical field of metering data collection systems, and includes several groups of measuring terminals and several groups of user terminals. The present invention collects the use information of natural gas equipment, calculates the user's common time period and the average time of using the natural gas equipment in the corresponding time period, and can regard the three events of not using the natural gas equipment in the common time period, using the natural gas equipment for a long time, and the high gas concentration of indoor natural gas as three different risk items, and jointly evaluate the risk level of natural gas leakage. When the risk is low, only the user is reminded, and an alarm is issued when the risk is high, which can avoid false alarms and increase the credibility of the collection system. At the same time, the collection system can simultaneously issue alarms to indoor personnel, users who are not at home, and neighbors in the same building, playing a role of multiple protection and reducing risks.

Description

Technical Field

[0001] The invention relates to the technical field of metrological data acquisition systems, in particular to a novel metrological data acquisition system. Background Art

[0002] In the prior art, data collection and measurement of indoor natural gas concentration is often used to determine whether there is a risk of natural gas leakage. If the natural gas concentration exceeds a certain threshold, an alarm is issued to remind the user. However, this method has certain limitations.

[0003] Chinese patent application number CN203179236U discloses a remote natural gas detection alarm system that can detect indoor natural gas concentration and remotely alarm users when the concentration exceeds a certain threshold. However, this method only alarms when the natural gas concentration exceeds the standard, and cannot prevent it in advance. At the same time, when natural gas leaks and spreads, the safety of other neighbors in the same building will also be affected, and they cannot get the alarm in time. They can only be detected when the natural gas concentration in their own home exceeds the standard. This undoubtedly increases the risk and makes the consequences of the matter more serious over time.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a novel measurement data acquisition system to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A new type of metering data acquisition system, suitable for indoor natural gas equipment, includes several groups of measuring terminals and several groups of user terminals, among which:

[0008] The measuring end includes a data acquisition module, a sensing module, a data conversion module, a data processing module, a data analysis module, a data transmission module, and an alarm module;

[0009] The data acquisition module is electrically connected to the data processing module, and is used to collect usage information and environmental information of the natural gas equipment, and send the usage information and environmental information to the data processing module;

[0010] The sensor module is electrically connected to the data conversion module, and is used to collect indoor gas information and send the gas information to the data conversion module;

[0011] The data conversion module is electrically connected to the data processing module, and is used to perform digital-to-analog conversion on the gas information and transmit the converted data to the data processing module;

[0012] The data processing module is electrically connected to the data analysis module, and is used to obtain the user's frequently used time period according to the usage information, generate a first alarm coefficient, generate a second alarm coefficient according to the gas information, and send the first alarm coefficient, the second alarm coefficient and the position information to the data analysis module;

[0013] The data analysis module is electrically connected to the data transmission module and the alarm module, and is used to generate an alarm instruction according to the first alarm coefficient and the second alarm coefficient, and send the alarm instruction and position information to the data transmission module and the alarm module;

[0014] The data transmission module includes an RF transmission unit and a network transmission unit. The RF transmission unit is used for communication connection with other measurement terminals and can receive and send alarm instructions and location information of other measurement terminals. The network transmission unit is used for communication connection with the user terminal and can send alarm instructions and location information to the user terminal.

[0015] The alarm module is used to issue an audible and visual alarm according to the alarm instruction;

[0016] The user end includes a data receiving module and a monitoring platform;

[0017] The data receiving module is electrically connected to the network transmission unit, and is used to receive the alarm instruction sent by the data analysis module, and send the alarm instruction to the monitoring platform;

[0018] The monitoring platform is used to monitor several groups of measurement terminals and generate a monitoring matrix.

[0019] Preferably, the usage information includes a start time and a usage duration, the gas information is a gas concentration, and the environmental information includes location information and floor information.

[0020] Preferably, the generation logic of the first alarm coefficient is:

[0021] Collect usage information within N days and divide the start time into 24 sets according to the 24-hour system Subscript i represents the time period number, i = 0, 1, 2…23, superscript j represents the number of times the natural gas equipment is used in this time period, j = 0, 1, 2…J, and the start time is marked as Tbg p , the subscript p represents the number of times the natural gas equipment is used during this period, and the usage time is calibrated as Duration of use With start time Tbg p One to one correspondence;

[0022] According to the order of the number of times j is used from large to small, the set Sort the top three sets The corresponding three time periods i are considered as the three commonly used time periods of the user, and then the average duration corresponding to the three commonly used time periods is calculated respectively. The calculation method is:

[0023]

[0024] First alarm coefficient ε 1 The initial value is 0, and the start time is Tbg p The corresponding set Compare with the common time period to determine whether it is within the common time period. If not, the first alarm coefficient ε 1 The value of is increased by 1, and then the start time Tbg is continued p Corresponding usage time The average duration of the three groups The largest group in the comparison, if Then the first alarm coefficient ε 1 unchanged, if Then the first alarm coefficient ε 1 Add 1, if it is during the normal period, the first alarm coefficient ε 1 No change, then continue to change the start time to Tbg p Corresponding usage time The average duration of a group corresponding to For comparison, if Then the first alarm coefficient σ 1 unchanged, if Then the first alarm coefficient σ 1 The value of is increased by 1.

[0025] Preferably, the generation logic of the second alarm coefficient is:

[0026] The second alarm coefficient ε 2 The initial value is 0. The gas concentration Crq is compared with the preset concentration threshold Cyz. When Crq>Cyz, the second alarm coefficient ε 2 The value of plus 1, when Crq ≤ Cyz, the second alarm coefficient ε 2 The value of remains unchanged.

[0027] Preferably, the generation logic of the alarm instruction is:

[0028] when When the natural gas equipment is used normally, the gas concentration is normal and there is no risk;

[0029] when When it is considered that the use of natural gas equipment has low abnormality, normal gas concentration and low risk;

[0030] when When the risk is high, the use of natural gas equipment is considered to be abnormal, the gas concentration is normal, and the risk is medium or low;

[0031] when When the natural gas equipment is used normally, the gas concentration is abnormal, and the risk is medium or high;

[0032] when When it is considered that the use of natural gas equipment has low abnormality, abnormal gas concentration, and high risk;

[0033] when When using natural gas equipment, it is considered that the use of natural gas equipment has high abnormality, abnormal gas concentration, and is dangerous.

[0034] Preferably, the alarm instruction is not sent when there is no risk, and is only sent to the user end when there is low risk or medium-low risk. When there is medium-high risk, high risk, or danger, the alarm instruction is sent to the alarm module, user end, and other measurement ends at the same time.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention collects the usage information of natural gas equipment, calculates the user's commonly used time periods and the average duration of using the natural gas equipment in the corresponding time periods, and can regard the three events of not using the natural gas equipment in the commonly used time periods, using the natural gas equipment for a long time, and high gas concentration of indoor natural gas as three different risk items, jointly evaluate the risk level of natural gas leakage, and give early warning reminders to users, thereby reducing the risk. When the risk is low, only a reminder is given to the user, and an alarm is issued only when the risk is high, thereby avoiding false alarms and increasing the credibility of the collection system. At the same time, the collection system can simultaneously issue alarms to people indoors, users who are not at home, and neighbors in the same building, thereby providing multiple protections and further reducing the risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall system structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the overall module structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the overall measurement terminal communication structure of the present invention;

[0039] Figure 4 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0041] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] Example:

[0043] See also Figure 1 - Figure 4 , the present invention provides a technical solution:

[0044] A new type of metering data acquisition system, suitable for indoor natural gas equipment, includes several groups of measuring terminals and several groups of user terminals, one group of measuring terminals and one group of user terminals form a set, one group of measuring terminals is installed indoors in a house, and several groups of measuring terminals are installed in different houses in the same building, wherein:

[0045] The measuring end includes a data acquisition module, a sensing module, a data conversion module, a data processing module, a data analysis module, a data transmission module, and an alarm module;

[0046] The data acquisition module includes an infrared detection device installed on the switch of the natural gas equipment and a GPS positioning device installed indoors, both of which are equipped with a digital-to-analog conversion chip. The collected data is a digital quantity. The infrared detection device is equipped with a timing function for detecting the switch of the natural gas equipment. When the switch is turned, the natural gas equipment is considered to be turned on, and when the switch is reset, the natural gas equipment is considered to be turned off. The data acquisition module is electrically connected to the data processing module, and is used to collect usage information and environmental information of the natural gas equipment, and send the usage information and environmental information to the data processing module. The usage information includes the start time and the usage duration, which are all collected by the infrared detection device with a timing function. The environmental information includes location information and floor information. The location information is collected by the GPS positioning device, and the floor information is preset by the user.

[0047] The sensing module is a gas concentration sensor, which is electrically connected to the data conversion module and is used to collect indoor gas information and send the gas information to the data conversion module. The gas information is gas concentration and is used to detect indoor natural gas concentration to avoid natural gas leakage.

[0048] The data conversion module adopts an A / D conversion chip of the AD7606 series, is electrically connected to the data processing module, and is used to perform digital-to-analog conversion on gas information and transmit the converted data to the data processing module.

[0049] The data processing module is electrically connected to the data analysis module, and both use the STM32F429 series controller chip, which is used to obtain the user's commonly used time period according to the usage information, generate a first alarm coefficient, generate a second alarm coefficient according to the gas information, and send the first alarm coefficient, the second alarm coefficient and the location information to the data analysis module.

[0050] The data analysis module is electrically connected to the data transmission module and the alarm module, and is used to generate an alarm instruction according to the first alarm coefficient and the second alarm coefficient, and send the alarm instruction and location information to the data transmission module and the alarm module.

[0051] The data transmission module includes an RF transmission unit and a network transmission unit. The RF transmission unit adopts the STM32WB series RF radio frequency chip, which is used for communication connection with other measuring ends. It can receive and send alarm instructions and location information of other measuring ends, so that users can understand whether there is a risk of natural gas leakage indoors in other neighbors in the same building. It can also issue alarms to surrounding neighbors when no one is at home. The network transmission unit adopts a network interface and inserts a network cable for communication connection with the user end. It can send alarm instructions and location information to the user end for remote reminders. The alarm module is used to issue sound and light alarms according to the alarm instructions to remind users who are still at home.

[0052] The user end includes a data receiving module and a monitoring platform. The user end uses smart devices such as mobile phones, PCs, tablets, etc. with networking functions, and the monitoring platform is set as an APP for monitoring the measurement end.

[0053] The data receiving module is electrically connected to the network transmission unit, and is used to receive the alarm instructions sent by the data analysis module, and send the alarm instructions to the monitoring platform. The monitoring platform can collect the alarm instructions sent by several groups of measurement terminals, so as to monitor the risk situation of the entire building, use a bar chart to represent the risk size of the alarm instructions, and generate a monitoring matrix based on the alarm instructions of the entire building, so as to facilitate users to monitor and observe the entire building.

[0054] The generation logic of the first alarm coefficient is:

[0055] Collect usage information within N days and divide the start time into 24 sets according to the 24-hour system Subscript i represents the time period number, i = 0, 1, 2…23, superscript j represents the number of times the natural gas equipment is used in this time period, j = 0, 1, 2…J, and the start time is marked as Tbg p , the subscript p represents the number of times the natural gas equipment is used during this period, and the usage time is calibrated as Duration of use With start time Tbg p One-to-one correspondence, each time a natural gas device is used, it has a start time Tbg p and a usage duration The data volumes of the three data are in a 1:1:1 relationship.

[0056] According to the order of the number of times j is used from large to small, the set Sort the top three sets The corresponding three time periods i are considered as the three commonly used time periods of the user, and then the average duration corresponding to the three commonly used time periods is calculated respectively. The calculation method is:

[0057]

[0058] First alarm coefficient ε 1 The initial value is 0, and the start time is Tbg p The corresponding set Compare with the common time period to determine whether it is within the common time period. If not, the first alarm coefficient ε 1 The value of is increased by 1, which is considered to have a certain risk, which may be a child's mistake or an adult's mistake. Then continue to increase the start time Tbg p Corresponding usage time The average duration of the three groups The largest group in the comparison, if Then the first alarm coefficient ε 1 unchanged, if Then the first alarm coefficient ε 1 Add 1, it is considered that the natural gas equipment may be turned on for a long time due to misoperation or accidental touch, and the risk assessment is higher. If it is during the usual period, the first alarm coefficient ε 1 No change, then continue to change the start time to Tbg p Corresponding usage time The average duration of a group corresponding to For comparison, if Then the first alarm coefficient ε 1 unchanged, if Then the first alarm coefficient ε1 The value of plus 1, the average duration corresponding to different common time periods Different from the above, if the natural gas equipment is used for a long time during the corresponding normal time period, there are also certain risks.

[0059] The generation logic of the second alarm coefficient is:

[0060] The second alarm coefficient ε 2 The initial value is 0. The gas concentration Crq is compared with the preset concentration threshold Cyz. When Crq>Cyz, the second alarm coefficient ε 2 The value of plus 1, when Crq ≤ Cyz, the second alarm coefficient ε 2 The value of remains unchanged.

[0061] Preferably, the generation logic of the alarm instruction is:

[0062] when At that time, it was considered that the natural gas equipment was in normal use, the gas concentration was normal, and there was no risk.

[0063] when When using natural gas equipment, it is considered that the use of natural gas equipment has low abnormality, normal gas concentration and low risk.

[0064] when When using natural gas equipment, it is considered that the risk is high, the gas concentration is normal, and the risk is medium to low.

[0065] when It is believed that the natural gas equipment is in normal use, but the gas concentration is abnormal. This may be due to a natural gas leak in a neighbor's home that spreads, causing the gas concentration to be abnormal, which is a medium to high risk.

[0066] when When using natural gas equipment, it is believed that the use of natural gas equipment has low abnormalities and abnormal gas concentration. This may be due to misoperation by children or accidental touch by adults, or it may be due to long-term use, resulting in equipment failure and abnormal gas concentration, which is a high risk.

[0067] when It is believed that the use of natural gas equipment is highly abnormal. It may be that the natural gas equipment has not been turned off for a long time due to misoperation or accidental touch, resulting in abnormal gas concentration and danger.

[0068] The alarm command will not be sent when there is no risk. When it is low risk or medium-low risk, the alarm command will only be sent to the user end, and only a notification will be sent to the user to serve as a reminder. When the alarm command is medium-high risk, high risk, or dangerous, the alarm command will be sent to the alarm module, user end and other measurement ends at the same time. The alarm module will send out an audible and visual alarm to remind people in the house, and the user end will send an alarm to remotely alert users who are not at home. The alarm command will then be sent to other measurement ends to alert neighbors in the same building, so that neighbors can help deal with it and avoid further increase in risks.

[0069] In summary, the specific process of the present invention is:

[0070] Collect usage information, environmental information and indoor gas information of natural gas equipment;

[0071] Based on the usage information, the common time periods and corresponding average durations of natural gas equipment use by users are obtained;

[0072] Generate a first alarm coefficient based on common time periods and average duration, generate a second alarm coefficient using gas information, and evaluate the risk level of the alarm instruction;

[0073] Different alarm instructions are issued according to different risk levels.

[0074] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0075] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. Those skilled in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented by computer software, electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraints of the technical solution.

[0076] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0077] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A new type of metering data acquisition system, suitable for indoor natural gas equipment, characterized in that: It includes several groups of measurement terminals and several groups of user terminals, among which: The measuring end includes a data acquisition module, a sensor module, a data conversion module, a data processing module, a data analysis module, a data transmission module, and an alarm module. The data acquisition module is electrically connected to the data processing module, and is used to collect usage information and environmental information of the natural gas equipment, and send the usage information and environmental information to the data processing module. The sensor module is electrically connected to the data conversion module, and is used to collect indoor gas information and send the gas information to the data conversion module. The usage information includes the start time and the usage duration. The gas information is the gas concentration. The environmental information includes the location information and the floor information. The data conversion module is electrically connected to the data processing module, and is used to perform digital-to-analog conversion on the gas information and transmit the converted data to the data processing module. The data processing module is electrically connected to the data analysis module, and is used to obtain the user's frequently used time period according to the usage information, generate a first alarm coefficient, generate a second alarm coefficient according to the gas information, and send the first alarm coefficient, the second alarm coefficient and the position information to the data analysis module; The generation logic of the first alarm coefficient is: Collect usage information within N days and divide the start time into 24 sets according to the 24-hour system Subscript i represents the time period number, i = 0, 1, 2…23, superscript j represents the number of times the natural gas equipment is used in this time period, j = 0, 1, 2…J, and the start time is marked as Tbg p , the subscript p represents the number of times the natural gas equipment is used during this period, and the usage time is calibrated as Duration of use With start time Tbg p One to one correspondence; According to the order of the number of times j is used from large to small, the set Sort the top three sets The corresponding three time periods i are considered as the three commonly used time periods of the user, and then the average duration corresponding to the three commonly used time periods is calculated respectively. The calculation method is: The initial value of the first alarm coefficient ε1 is 0, and the start time Tbg p The corresponding set Compare with the common time period to determine whether it is within the common time period. If it is not within the common time period, the value of the first alarm coefficient ε1 is increased by 1, and then the start time Tbg is continued to be p Corresponding usage time The average duration of the three groups The largest group in the comparison, if Then the first alarm coefficient ε1 remains unchanged, if Then the first alarm coefficient ε1 is increased by 1. If it is in the common time period, the first alarm coefficient ε1 remains unchanged, and then the start time Tbg is continued. p Corresponding usage time The average duration of a group corresponding to For comparison, if Then the first alarm coefficient ε1 remains unchanged, if Then the value of the first alarm coefficient ε1 is increased by 1; The generation logic of the second alarm coefficient is: The initial value of the second alarm coefficient ε2 is 0. The gas concentration Crq is compared with the preset concentration threshold Cyz. When Crq>Cyz, the value of the second alarm coefficient ε2 is increased by 1. When Crq≤Cyz, the value of the second alarm coefficient ε2 remains unchanged. The data analysis module is electrically connected to the data transmission module and the alarm module, and is used to generate an alarm instruction according to the first alarm coefficient and the second alarm coefficient, and send the alarm instruction and position information to the data transmission module and the alarm module; The data transmission module includes an RF transmission unit and a network transmission unit. The RF transmission unit is used to communicate with other measuring ends and can receive and send alarm instructions and location information from other measuring ends. The network transmission unit is used to communicate with the user end and can send alarm instructions and location information to the user end. The alarm module is used to issue an audible and visual alarm according to the alarm instruction. The user end includes a data receiving module and a monitoring platform. The data receiving module is electrically connected to the network transmission unit, and is used to receive the alarm instruction sent by the data analysis module and send the alarm instruction to the monitoring platform. The monitoring platform is used to monitor several groups of measuring ends and generate a monitoring matrix.

2. According to claim 1, a novel measurement data acquisition system is characterized in that: The generation logic of the alarm instruction is: when When the natural gas equipment is used normally, the gas concentration is normal and there is no risk; when When it is considered that the use of natural gas equipment has low abnormality, normal gas concentration and low risk; when When the risk is high, the use of natural gas equipment is considered to be abnormal, the gas concentration is normal, and the risk is medium or low; when When the natural gas equipment is used normally, the gas concentration is abnormal, and the risk is medium or high; when When it is considered that the use of natural gas equipment has low abnormality, abnormal gas concentration, and high risk; when When using natural gas equipment, it is considered that the use of natural gas equipment has high abnormality, abnormal gas concentration, and is dangerous.

3. A novel measurement data acquisition system according to claim 2, characterized in that: The alarm command will not be sent when there is no risk. When there is low risk or medium-low risk, the alarm command will only be sent to the user end. When there is medium-high risk, high risk, or danger, the alarm command will be sent to the alarm module, user end, and other measurement ends at the same time.

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