CN110441471A - A kind of monitoring method and system of multi-sensor cooperation work - Google Patents
A kind of monitoring method and system of multi-sensor cooperation work Download PDFInfo
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- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
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- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The monitoring method to work this application discloses a kind of multi-sensor cooperation and the system to work in this way, this method are as follows: the collection of varying environment information is carried out using the sensor of multiple types；Classified with power consumption value to sensor, the sensor is divided into low-power consumption sensor and high power consumption sensor at least two classes；After system is waken up, low-power consumption sensor and high power consumption sensor the sampling period T respectively to set respectively1、T2It is sampled；If the measured value A of low-power consumption sensor1Meet or exceed the alert threshold A of its setting0, then the real-time sampling of low-power consumption sensor and high power consumption sensor is triggered, until system is in normal condition, normal condition A1Less than A0, and the measured value B of high power consumption sensor1Less than the alert threshold B of its setting0.The benefit for implementing technical scheme is: so that the energy consumption of system is greatly reduced, and can more comprehensively, accurately and timely know emergency event.
Description
Technical field
This application involves the technical field of environment information acquisition monitoring, in particular to a kind of prison of multi-sensor cooperation work
Survey method and system.
Background technique
Field is monitored in environment information acquisition, especially industrial gasses environmental monitoring needs monitoring device energy timely learning
The information of gas leakage.
In recent years, due to construction site (such as factory) there is some constructional difficulties, wiring cost it is high, vulnerable to destroy because
Element, traditional wired monitoring mode are deactivated at leisure replaced monitoring mode.Sensor is accessed into wireless network, can solve
The difficult problem of wiring, installation, the real-time detection of traditional monitoring means.
However, and relative to wired monitoring device, wireless monitoring device mostly uses battery powered mode, and how excellent
The battery durable ability for changing wireless device is an important research direction.
In general, for timely learning abnormal conditions, existing majority of gas monitoring depends on single gas
Body sensor carries out prolonged work and data acquisition, still insufficient in this way, essentially consists in:
1, frequency data communication selection merely is carried out by the data of gas sensor judgement sampling, there is one always
Fixed hysteresis quality and integrity problem, may bring security risk；
2, information is obtained using the sensor of single type, under complex environment, cannot finds it well
His hidden danger, for example there is the environment of multiple gases, and the threshold value of these gases is significantly different, sometimes may differ by it is very big,
And the important information that temperature and humidity, pressure in environment etc. can react leakage hidden danger is often ignored；
3, the biggish sensor of some power consumptions is continually monitored environment, so that the energy consumption of system is larger, reduces
System battery continuation of the journey duration.
Summary of the invention
The application technical problems to be solved are to provide a kind of low energy consumption, high-precision environmental monitoring solution.
In order to solve the above-mentioned technical problem, a kind of monitoring method of multi-sensor cooperation work is disclosed in the application and is
System.The technical solution of the application is implemented:
A kind of monitoring method of multi-sensor cooperation work, carries out searching for varying environment information using the sensor of multiple types
Collection；Classified with power consumption value to sensor, the sensor is divided into low-power consumption sensor and high power consumption sensor at least
Two classes；After system is waken up, low-power consumption sensor and high power consumption sensor the sampling period T respectively to set respectively1、T2It carries out
Sampling；If the measured value A of low-power consumption sensor1Meet or exceed the alert threshold A of its setting0, then trigger low-power consumption sensor with
And the real-time sampling of high power consumption sensor, until system is in normal condition, normal condition A1Less than A0, and high power consumption senses
The measured value B of device1Less than the alert threshold B of its setting0。
Preferably, the measurement data of the low-power consumption sensor and high power consumption sensor is reported by communication module；Institute
Stating communication module and carrying out the frequency that data report includes normal frequency f1With alert frequency f2, the former is less than the latter by numerical value；Work as system
When in normal condition, the communication module is with normal frequency f1Reporting for the measurement data is carried out, otherwise with alert frequency f2
Carry out reporting for the measurement data.
Preferably, the sampling period T of low-power consumption sensor1Less than the sampling period T of high power consumption sensor2。
Preferably, f2Numerical value be f15 to 10 times of numerical value.
Preferably, the concrete mode classified with power consumption value to sensor are as follows: one rated current reference value of setting, if
The load current value of certain sensor is more than the reference value, then the sensor is classified as high power consumption sensor, is otherwise classified as
Low-power consumption sensor.
Preferably, the concrete mode classified with power consumption value to sensor are as follows: one rated power reference value of setting, if
The power-handling capability of certain sensor is more than the reference value, then the sensor is classified as high power consumption sensor, is otherwise classified as
Low-power consumption sensor.
Preferably, the low-power consumption sensor includes humidity sensor, pressure sensor or vibrating sensor；The Gao Gong
Consuming sensor includes flow sensor, semiconductor gas sensor, photoionization gas sensor or infrared gas sensor.
Preferably, after system is waken up, if being constantly in normal condition, pass through a system monitoring cycle T3Afterwards, it is
System enters suspend mode, waits be waken up next time.
Preferably, the low-power consumption sensor and the high power consumption sensor carry out after setting the sampling of number, to sampling
Institute's value is averaged, and resulting average value is stored to storage unit.
A kind of system of multi-sensor cooperation work, the system are monitored for industrial gasses；It is passed including the low-power consumption
Before sensor, the high power consumption sensor, signal processing and cache module, the communication module, parameter storage unit and control
State the master controller of component work；The measurement data of the low-power consumption sensor and high power consumption sensor is carried out by communication module
Report；The signal processing and cache module are for handling the low-power consumption sensor and the collected letter of high power consumption sensor
Breath, and data resulting after processing are cached or are sent to the master controller；The master controller judges A1Value and A0
Value drives the high power consumption sensor to carry out real-time sampling if the latter is more than or equal to the former, and control the communication module into
The row measurement data reports；The master controller wakes up the above-mentioned parts according to setting or makes its suspend mode；The parameter
Storage unit is for resulting data after configuration parameter and signal processing and the cache module processing of storage system.
The beneficial effect for implementing technical scheme mainly has:
1, environmental monitoring is carried out using the sensor of multiple types, low-power consumption sensor and high power consumption sensor have different
Sampling period, can more comprehensively, accurately and timely know emergency event；
2, sensor is classified with power consumption, the sensing of driving high power consumption after alarm occurs by the sensor of low-power consumption
Device is sampled, and is avoided the sensor long-time sampling operation of high power consumption, is reduced the energy consumption of system；
3, the frequency that data report is carried out to communication module to control in varied situations, devise normal frequency f1With
Alert frequency f2, so that the data transmissions consumption of communication module is declined under normal condition, further reduced the energy of system
Consumption.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
A kind of embodiment of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structure diagram of system in one embodiment；
Fig. 2 is the workflow schematic diagram of system in one embodiment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
In a specific embodiment, a kind of monitoring method of multi-sensor cooperation work, using the sensing of multiple types
The collection of device progress varying environment information；Classified with power consumption value to sensor, the sensor is divided into low-power consumption and is passed
Sensor and high power consumption sensor at least two classes；After system is waken up, low-power consumption sensor and high power consumption sensor are respectively with respective
The sampling period T of setting1、T2It is sampled；If the measured value A of low-power consumption sensor1Meet or exceed the alert threshold of its setting
A0, then the real-time sampling of low-power consumption sensor and high power consumption sensor is triggered, until system is in normal condition, normal condition
For A1Less than A0, and the measured value B of high power consumption sensor1Less than the alert threshold B of its setting0。
Above-mentioned technical proposal can be applied to the occasion of some important environmental physics amount monitorings, especially suitable in factory
Fuel gas, toxic and harmful gas monitoring, simultaneously because with multiple types sensor, can also be to pipeline flow, environment
The information such as temperature, pipeline pressure carry out overall monitor, in this way, can get the environmental information of polymorphic type, when judging emergency event
It can provide and more fully refer to.In above-mentioned technical proposal, high power consumption sensor can use the gas sensor of semiconductor-type, low
Power consumption sensor can be using temperature sensor, pressure sensor, humidity sensor etc., by the way that the different sampling periods is arranged
T1、T2, allow the sampling operation of each sensor to be reasonably arranged at different period progress, can find ring more in time
The anomalous variation occurred in border.
In the present embodiment, the sampling interval duration of high power consumption sensor can be arranged relatively large, avoid it always
Work and cause the high energy consumption of system；The sampling interval duration of low-power consumption sensor is arranged relatively small, is made it possible in time
The variation (such as temperature increases suddenly, and pressure becomes larger suddenly, and humidity variation is obvious etc.) for knowing environmental information, when the survey of environmental information
When magnitude is more than threshold value, then high power consumption sensor is driven to be sampled, can guarantee monitoring while reducing system energy consumption in this way
Accuracy.
It should be understood that
1, " collection that the sensor of multiple types carries out varying environment information ", it is meant that the environment letter that these sensors are collected
Breath be it is a variety of, specific to gas-monitoring field, those skilled in the art should be able to select according to the actual situation from the prior art
It selects different types of sensor and carries out the collection of relevant context information, such as temperature sensor, pressure sensor, gas can be used
Body sensor etc. can get a variety of environmental informations, such as temperature, pressure, gaseous species, gas concentration, leakage speed etc. in this way,
Be conducive to carry out comprehensively and accurately environmental information to collect and judge.
2, " classified with power consumption value to sensor, the sensor is divided into low-power consumption sensor and high power consumption passes
Sensor at least two classes ", it is meant that the sensor that can be applied to part also can be applied in a certain range (such as certain workshop)
All the sensors also can be applied under entire overall situation all the sensors of (such as entire workshop).It also means that can be with
With power consumption number two classes or more, such as three classes are divided into sensor: it is generally consuming energy, compare energy consumption, consume energy the most, Ke Yitong
The sensor acquisition environmental information for crossing opposite low energy consumption drives the sensor of opposite high energy consumption to carry out when found the abnormal situation
Implement data acquisition.It follows that low-power consumption sensor and high power consumption sensor are opposite concepts, it is not meant as all
In the case where, sensor all will only be divided into these two types；However, in most cases, sensor is divided into these two types
, more convenient in this way to manage and control.
3, " low-power consumption sensor and high power consumption sensor the sampling period T respectively to set respectively1、T2Sampled ", T1
What is referred to is the sampling period of low-power consumption sensor；Not define that the sampling period of all low-power consumption sensors is all same
Numerical value；When low-power consumption sensor there are many when, the sampling period T of each low-power consumption sensor1Can be identical, can also have
Institute is different；Similarly, when high power consumption sensor there are many when, the sampling period T of every kind of high power consumption sensor2Can be identical,
It can also be different.
4, to measured value A1, alert threshold A0, measured value B1With alert threshold B0Should make such understanding: measured value can be with
It is the resulting numerical value of real-time sampling, is also possible to sample resulting average value for a period of time, is also possible to front and back double sampling value
Absolute value (or difference), also to be the absolute value (or difference) of former and later two periodic sampling average values, the class of certain measured value
Type can also be other types referred in the prior art, be not particularly limited herein.To sum up, measured value is to be used for and warn
Report threshold value is compared, for judging the variation of environmental information generation.Which kind of measured value and alert threshold specifically use
Type, which kind of unit, those skilled in the art can select according to the actual situation.
5, " real-time sampling of low-power consumption sensor and high power consumption sensor is then triggered ", it is meant that some applications
Under, all sensor can be triggered and carry out real-time sampling, under some occasions, can be triggering part low-power consumption sensor and
High power consumption sensor carries out real-time sampling, certainly the former better effect.
In a preferred embodiment, the measurement data of the low-power consumption sensor and high power consumption sensor is by communication module
It is reported；It includes normal frequency f that the communication module, which carries out the frequency that data report,1With alert frequency f2, the former is less than numerical value
The latter；When system is in normal condition, the communication module is with normal frequency f1Reporting for the measurement data is carried out, otherwise
With alert frequency f2Carry out reporting for the measurement data.In this embodiment, communication module uses radio-frequency module, by wireless
Mode communicated.The embodiment be substantially in order to illustrate:, can relatively smaller number when system is in normal condition
Reporting for data is carried out, the energy consumption of system is reduced with this, system is under abnormal condition, and communication module needs related frequency
Ground carries out reporting for data, so that backstage can know the situation at scene more accurately and in time.Pass through the data to communication module
Frequency is reported to carry out different settings according to different situations, in conjunction with doing for low-power consumption sensor driving high power consumption working sensor
Method greatly can rationally reduce the energy consumption of system.
In a preferred embodiment, the sampling period T of low-power consumption sensor1Less than the sampling period of high power consumption sensor
T2, it is meant that low-power consumption sensor needs more continually to carry out data acquisition than high power consumption sensor, and acquisition information can be improved
Real-time.
In a preferred embodiment, f2Numerical value be f15 to 10 times of numerical value, be a kind of preferable scheme；Certainly,
In other examples, f2Numerical value and f1Numerical value can be other variations, as long as meeting the former greater than the latter.
Have in such a way that power consumption value classifies to sensor very much, for example, it can be set to a rated current reference value
(such as 1mA), if the load current value of certain sensor is more than the reference value, which is classified as high power consumption sensor,
Otherwise it is classified as low-power consumption sensor.In another example a rated power reference value can be set, if the power-handling capability of certain sensor
More than the reference value, then the sensor is classified as high power consumption sensor, is otherwise classified as low-power consumption sensor.This field skill
Art personnel can also be according to other prior arts and method come the energy consumption size between distinguishing sensor.
In a preferred embodiment, the low-power consumption sensor includes that humidity sensor, pressure sensor or vibration pass
Sensor；The high power consumption sensor includes flow sensor, semiconductor gas sensor, photoionization gas sensor or infrared
Gas sensor.
In a preferred embodiment, after system is waken up, if being constantly in normal condition, pass through a system monitoring
Cycle T3Afterwards, system enters suspend mode, waits be waken up next time.
In a preferred embodiment, the low-power consumption sensor and the high power consumption sensor carry out adopting for setting number
After sample, sampling institute's value is averaged, resulting average value is stored to storage unit.
A kind of system of multi-sensor cooperation work, the system are monitored for industrial gasses；As shown in Figure 1, including institute
State low-power consumption sensor, the high power consumption sensor, signal processing and cache module, the communication module, storage unit and
Control the master controller of above-mentioned parts work；The measurement data of the low-power consumption sensor and high power consumption sensor is by communication module
It is reported；The signal processing and cache module are for handling the low-power consumption sensor and high power consumption sensor acquisition
The information arrived, and data resulting after processing are cached or are sent to the master controller；The master controller judgement
A1Value and A0Value drives the high power consumption sensor to carry out real-time sampling if the latter is more than or equal to the former, and controls described logical
News module carries out reporting for the measurement data；The master controller wakes up the above-mentioned parts according to setting or makes its suspend mode；
The storage unit is for resulting data after configuration parameter and signal processing and the cache module processing of storage system.
More specifically, the communication module that system uses for RF receiving and transmission module, can specifically use LORA, ZigBee, NB-
The radio frequency transmissions mode such as IOT.Wireless sensor node can form wireless sensor network by way of wireless networking, wherein
LORA, ZigBee etc. operate in free frequency range, can such as can be star, MESH networking, list with independent development network operating protocol
The network construction forms such as Tiao multi-hop, NB-IOT are then the dedicated networking modes of Internet of Things of operator's exploitation, the advantage is that coverage area
Extensively, using simple.
The sensor that system uses may include digital sensor, analog sensor, digital sensor
It completes to communicate under the control of master controller with signal processing unit by certain transport protocol, the signal of output is number
Signal can directly be used by master controller.Analog sensor needs to be added suitable AFE(analog front end) processing circuit, mainly includes
Signal buffer, signal amplification circuit, analog-digital converter (ADC), filter circuit etc. are given slow after being handled by analog front circuit
It deposits or master controller uses.
The power supply of system is provided by battery, can be battery, lithium battery, solar battery etc..Battery is to each module
Power supply switches on-off by switch control and completes to control by master controller, to reach each sensor module of control, at signal
Reason and cache module, memory module, the purpose of communication module.
Finally, the monitoring method and system that are worked by flow chart shown in Fig. 2 to multi-sensor cooperation are illustrated.In
In one concrete application occasion, the workflow of system is as follows:
1, it is powered on and initialized, then reads preset key system perameter, these parameters mainly include each sensor sample
In the period, (such as channel frequency, transmission power, data upload the important configuration parameters of communication module (specifically using radio-frequency module)
Frequency), while further including the alert threshold A of low-power consumption sensor (such as temperature and humidity, pressure, vibration)0, high power consumption sensor
The alert threshold B of (such as gas sensor)0.It is two that wherein communication module, which uploads the predetermined frequency of sensing data, including
Normal frequency f1With alert frequency f2, the former is less than the latter by numerical value.
2, each sensor completes the multiple repairing weld of data, is averaged and is compared with alert threshold, if being no different reason
Condition, system enter dormant state, close the power supply of each module, wait timing wake-up.
3, timer time arrives, and system is waken up, and the data that main controller controls low-power consumption sensor completes a new round are adopted
Sample, and control data processing module and signal is handled.
4, judge whether low-power consumption sensor data are more than threshold value (i.e. A1Whether A is more than or equal to0), if it is triggering pair
The real time data acquisition of high power consumption sensor, while main controller controls communication module is with f2Frequency to data center send institute
There is sensing data, until all clear (i.e. system is in normal condition), otherwise sends data always；Conversely, low-power consumption passes
Sensor data are normal, then high power consumption sensor is according to preset normal sample cycle T2It is sampled, while judging that high power consumption passes
Whether exceeded (the i.e. B of sensor data1Whether B is more than or equal to0), if so, also will triggering low-power consumption sensor and high power consumption sensor
Real-time sampling, radio-frequency module is with f2Data are sent, until all clear, if high power consumption sensing data is normal, system enters
Suspend mode waits wake up next time.
The above-mentioned various embodiments enumerated can be combined with each other implementation, those skilled in the art under the premise of reconcilable
In combination with attached drawing and above to the explanation of embodiment, as the foundation being combined to the technical characteristic in different embodiments.
It should be pointed out that the foregoing is merely the preferred embodiments of the application, it is all not to limit the application
Within spirit herein and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the application
Within the scope of shield.
Claims (10)
1. a kind of monitoring method of multi-sensor cooperation work, it is characterised in that:
The collection of varying environment information is carried out using the sensor of multiple types；
Classified with power consumption value to sensor, the sensor is divided into low-power consumption sensor and high power consumption sensor at least
Two classes；
After system is waken up, the low-power consumption sensor and the high power consumption sensor sampling period T respectively to set respectively1、
T2It is sampled；
If the measured value A of the low-power consumption sensor1Meet or exceed the alert threshold A of its setting0, then the low-power consumption is triggered
The real-time sampling of sensor and the high power consumption sensor, until system is in normal condition, normal condition A1Less than A0,
And the measured value B of the high power consumption sensor1Less than the alert threshold B of its setting0。
2. monitoring method according to claim 1, it is characterised in that:
The measurement data of the low-power consumption sensor and high power consumption sensor is reported by communication module；
It includes normal frequency f that the communication module, which carries out the frequency that data report,1With alert frequency f2, the former is less than the latter by numerical value；
When system is in normal condition, the communication module is with normal frequency f1Carry out reporting for the measurement data, otherwise with
Alert frequency f2Carry out reporting for the measurement data.
3. monitoring method according to claim 2, it is characterised in that:
The sampling period T of low-power consumption sensor1Less than the sampling period T of high power consumption sensor2。
4. monitoring method according to claim 2, it is characterised in that:
f2Numerical value be f15 to 10 times of numerical value.
5. monitoring method according to claim 1, it is characterised in that:
The concrete mode classified with power consumption value to sensor are as follows: one rated current reference value of setting, if certain sensor
Load current value is more than the reference value, then the sensor is classified as high power consumption sensor, is otherwise classified as low-power consumption sensing
Device.
6. monitoring method according to claim 1, it is characterised in that:
The concrete mode classified with power consumption value to sensor are as follows: one rated power reference value of setting, if certain sensor
Power-handling capability is more than the reference value, then the sensor is classified as high power consumption sensor, is otherwise classified as low-power consumption sensing
Device.
7. monitoring method according to claim 1, it is characterised in that:
The low-power consumption sensor includes humidity sensor, pressure sensor or vibrating sensor；
The high power consumption sensor includes flow sensor, semiconductor gas sensor, photoionization gas sensor or infrared
Gas sensor.
8. monitoring method according to claim 1, it is characterised in that:
After system is waken up, if being constantly in normal condition, pass through a system monitoring cycle T3Afterwards, system enters suspend mode, etc.
It is waken up to next time.
9. monitoring method according to claim 1, it is characterised in that:
After the low-power consumption sensor and the high power consumption sensor carry out the sampling of setting number, sampling institute's value is carried out
It is averaged, resulting average value is stored to storage unit.
10. a kind of system of multi-sensor cooperation work, it is characterised in that:
The system is monitored for industrial gasses；
Including the low-power consumption sensor, the high power consumption sensor, signal processing and cache module, the communication module, ginseng
Number storage unit and the master controller for controlling above-mentioned parts work；
The measurement data of the low-power consumption sensor and high power consumption sensor is reported by communication module；
The signal processing and cache module are used to handle the low-power consumption sensor and the high power consumption sensor is collected
Information, and data resulting after processing are cached or are sent to the master controller；
The master controller judges A1Value and A0Value drives the high power consumption sensor to carry out real if the latter is more than or equal to the former
When sample, and control the communication module and carry out reporting for the measurement data；
The master controller wakes up the above-mentioned parts according to setting or makes its suspend mode；
The parameter storage unit is for resulting after configuration parameter and signal processing and the cache module processing of storage system
Data.
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