CN206516060U - Passive sensing devices and a kind of passive type wireless sensing system - Google Patents
Passive sensing devices and a kind of passive type wireless sensing system Download PDFInfo
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- CN206516060U CN206516060U CN201621351778.8U CN201621351778U CN206516060U CN 206516060 U CN206516060 U CN 206516060U CN 201621351778 U CN201621351778 U CN 201621351778U CN 206516060 U CN206516060 U CN 206516060U
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Abstract
The utility model is related to passive sensing devices and a kind of passive type wireless sensing system, and passive sensing devices include：Passive sensor, senses domestic environment index in the way of obtaining electric power from extraneous electromagnetic signals and is converted to digitlization supplemental characteristic；Electromagnetism couples the sensor control circuit of the passive sensor, for launching above-mentioned electromagnetic signal to the passive sensor and receiving above-mentioned digitlization supplemental characteristic.Some drawbacks that current active sensor network is present are solved, the demand of the scope of application of sensor, particularly adverse circumstances to sensing network is improved.
Description
【Technical field】
The utility model is related to smart home field, more particularly to passive sensing devices and a kind of passive type wireless sensing system
System.
【Background technology】
The rise of radio sensing network so that the research and application of sensor network are more and more extensive, and passive and wireless is passed
Sensor as a kind of new sensor, with extreme environment adaptive faculty it is strong, powered from main source of energy, reliability is high the features such as.
In Traditional Industrialization production, in order to keep normal industrialized production in real time, tested using greenhouse pressure sensor in industrial environment
Temperature, humidity and air pressure, but the closed environment factor of HTHP changes the wired sensing of conventional active in actual applications
The electrology characteristic of device, causes measurement data inaccurate, have impact on industrial production, some special applications such as inflammable and explosive strong high voltage
Occasion, site environment can not provide safe and reliable power supply, cause sensor not use normally.
Therefore, the powerup issue of sensor has hindered the paces that it is applied and large-scale popularization to a certain extent.Pass
Sensor collection information is that measured data information is converted into electric signal to be transmitted, if while gathered data information, will
Electric signal as the energy supply of sensor, can thoroughly solve the power supply problem of system, and then realize sensor network simultaneously
Passive.
【Utility model content】
To solve foregoing problems, the utility model proposes passive sensing devices and a kind of passive type wireless sensing system.Institute
The transducing part for the wireless sensing system stated uses passive mode, in addition, the sensor in wireless sensing system and control circuit
The exchange of power supply energy is carried out using distributing electromagnetic coupled mode, reduce current active sensor to power requirement
Limitation, solves demand of some adverse circumstances to sensor.
To reach object defined above, the scheme that the utility model is used for:Passive sensing devices, it is characterised in that including：
Passive sensor, senses domestic environment index in the way of obtaining electric power from extraneous electromagnetic signals and is converted to numeral
Change supplemental characteristic；
Electromagnetism couples the sensor control circuit of the passive sensor, believes for launching above-mentioned electromagnetism to the passive sensor
Number and receive above-mentioned digitlization supplemental characteristic.
Optionally, passive sensor also includes：
Antenna transmission circuit, launches for predeterminated frequency and receives electromagnetic signal；
The second data modulation circuitry of the antenna transmission circuit is coupled, for receiving the electromagnetism from sensor control circuit
Signal sends electromagnetic signal to sensor control circuit, and sets the predeterminated frequency；
The energy storage circuit of the antenna transmission circuit is coupled, for receiving energy that electromagnetic signal transmitted and being deposited
Storage；
The energy management circuit of the energy storage circuit is coupled, the accumulation of energy is transmitted for detecting；And
For sensing domestic environment index and being converted to the sensing circuit of digitlization supplemental characteristic, sensing circuit coupling
The second above-mentioned data modulation circuitry and energy storage circuit, to obtain driving electricity under the threshold value that the energy management circuit is set
Power.
Optionally, second data modulation circuitry includes：
Appearance/frequency converter, the physical signalling for passive sensor to be perceived is converted into digital fre-quency signal；
The frequency divider of the appearance/frequency converter is coupled, for handling the digital fre-quency signal after conversion.
Optionally, the passive sensing devices are installation by adhering in building sides.
Optionally, above-mentioned domestic environment index includes temperature, humidity, pressure value.
Another scheme, a kind of passive type wireless sensing system, including：
Several passive sensing devices as described in claim 1；
The data acquisition device of above-mentioned passive sensing devices is coupled, the digitlization for receiving passive sensing devices transmission
Supplemental characteristic；And
The gateway communicated with the data acquisition device, is analyzed and is visualized for the digitlization supplemental characteristic to reception
Display.
Optionally, described sensor control circuit includes：
Oscillator；For producing carrier signal；
Power amplifier；Carrier signal for oscillator to be produced is amplified；
Antenna；For the carrier signal of amplification to be launched by it；
Detecting circuit；Target modulation signal is recovered from the brewed higher-order of oscillation；
First data modulation circuitry；And
Power circuit.
Optionally, between described passive sensor and sensor control circuit by way of distributing electromagnetic coupled come
Carry out energy transmission.
Optionally, described passive type wireless sensing system is based on MESH network, and described MESH network uses plane separation
From vector route agreement.
Optionally, data acquisition device may include microprocessor, power circuit, condition indication circuit, RF transmit-receive circuit,
Storage medium.
The utility model can reach following technique effect：Some drawbacks that current active sensor network is present are solved, are carried
The high demands of the scope of application of sensor, particularly adverse circumstances to sensing network.
These features and advantage of the present utility model will be detailed in following embodiment, accompanying drawing exposure.
The optimal embodiment of the utility model or means will carry out detailed performance with reference to accompanying drawing, but be not to the utility model technical side
The limitation of case.In addition, in each of the lower in text and accompanying drawing these features, key element and the component that occur be with multiple, and in order to
Represent convenient and marked different symbol or numeral, but represent same or similar construction or the part of function.
【Brief description of the drawings】
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is a kind of system block diagram of radio sensing network of the present utility model；
Description of reference numerals：
1- passive sensing devices；11- sensor control circuits；12- passive sensors；111- power circuits；112- vibrates
Device；113- power amplifiers；The data modulation circuitries of 114- first；115- detecting circuits；116- antennas；121- energy managements electricity
Road；122- energy storage circuits；123- antenna transmission circuits；124- sensing circuits；The data modulation circuitries of 125- second；
2- data acquisition devices；201- power circuits；202- condition indication circuits；203- RF transmit-receive circuits；204- is micro-
Processor；205-RAM；206-FLASH；
3- gateways.
【Embodiment】
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the embodiment in embodiment,
Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to of the present utility model
Protection domain.
" one embodiment " or " example " or " example " quoted in this manual means that itself is described in conjunction with the embodiments
Special characteristic, structure or characteristic can be included at least one embodiment disclosed in this patent.Phrase is " in one embodiment
In " appearance of each position in the description is not necessarily all referring to same embodiment.
The process step shown in the accompanying drawing appended by this specification is by including hardware (such as circuit, special logic list
Member etc.), firmware (such as on general-purpose calculating appts or special purpose machinery run) or both combination processing logic execution.
Although each following embodiment is to describe processing according to some order operations, it is understood that, the step of some descriptions
Operation can be performed in different order.In addition, some step operations can be executed in parallel rather than be sequentially performed.
Embodiment 1.
Referring to Fig. 1, a kind of passive type wireless sensing system mainly may include passive sensing devices 1, data acquisition device 2 with
And gateway 3.
Passive sensing devices 1 may include passive sensor 12 and sensor control circuit 11.
Sensor control circuit 11 is powered by external power source to be operated, and is mainly included power circuit 111, is shaken
Swing device 112；Power amplifier 113；First data modulation circuitry 114；Detecting circuit 115；Antenna 116.During work, oscillator
112 carrier signals produced are launched after the amplification of power amplifier 113 by antenna 116, are that passive sensor 12 provides energy
Amount.
Needed for passive sensor 12 is obtained by between sensor control circuit 11 Non-contact electromagnetic coupling mode
Energy, by indirect power supply, realize passive.
Passive sensor 12 mainly includes energy management circuit 121；Energy storage circuit 122；Antenna transmission circuit 123；
Sensing circuit 124；Second data modulation circuitry 125.Second data modulation circuitry 125 includes appearance/frequency converter and frequency divider.
Data acquisition device 2 may include microprocessor 204, power circuit 201, condition indication circuit 202, radio-frequency receiving-transmitting electricity
Road 203, storage medium (such as RAM205, FLASH206).RF transmit-receive circuit 203 is used to carry out between wireless sensor node
Radio communication, realizes node networking, data transmit-receive and intelligent MANET.
Gateway 3 is used to the data of the device 2 of reception are analyzed and shown.
During specific works：
The carrier signal that oscillator 112 in sensor control circuit 11 is produced is led to after the amplification of power amplifier 113
Cross antenna 116 to launch, the energy that carrier signal is transmitted is passed through energy stores by the antenna transmission circuit 123 of passive sensor 12
Circuit 122 is stored, after the energy of storage is met using threshold value, and 125 pairs of sensings of the second data modulation circuitry of driving are believed
Breath is acquired.Appearance/frequency converter in second data modulation circuitry 125, the physical signalling that sensing circuit 124 is perceived is changed
Into digital fre-quency signal；Using frequency divider, data frame is loaded into carrier wave by backscattered modulation.Sensor control circuit
11, using detecting circuit 115, the first data modulation circuitry 114, obtain final sensor information.
The data of acquisition are transferred in data acquisition device 2 by sensor control circuit 11 by peripheral interface circuit.Pass
The output format of sensor information is the mixing output of multi-parameter, and is one section of continuous square wave.Data output format be from
Synchronizing signal starts, and is then followed successively by temperature, humidity, pressure value information；The output signal of passive sensor determines that it is gathered
Mode is the signal acquisition based on timer counter principle；Can be real according to the counting of synchronizing signal and sampling period and timer
Existing sensor information temperature, humidity, the separation of pressure value information, the data of the process Signal separator collected are sent again
Preceding processing work, including data frame format, WSN agreements, the wireless transmission then transmitted data in data acquisition device 2
In buffering area.
In data acquisition is carried out, if gathered data does not enter into wireless transmission buffering area, data acquisition is lost
Lose, re-start data acquisition, until buffering area there are data to be sent to produce；Data to be sent are carried out to transmit processing,
If condition indication circuit 202 does not flash, show that data are not sent.Handle sending failure, and to there is event
The data acquisition device 2 of barrier is reinitialized, until data are sent successfully.
In the sensor node progress communication process of passive type wireless sensing system, transmission is based between node and node
Plan range vector route agreement.Plan range vector route agreement uses route requests, route replies and Route error conduct
Control information.If terminal node will be communicated with destination node, if there is destination node communication in routing table
Routed path when, without any operation；When being communicated with new destination node, route discovery function will be caused, led to
Cross broadcast route request message and carry out searching route.Destination node is by backtracking to one route replies information of source node come really
Surely the availability routeing.When there is link disconnection, node will use Route error message to notify superior node, Mei Gejie
Point all retains a precursor list to help through error reporting.
Gateway 3 is received after data, is carried out further visualization display and is handled.
If not receiving data in the reception buffering area of gateway 3, communication protocol should be checked, is fixed a breakdown, until connecing
Receiving in buffering area has data generation, and data are analyzed and handled in gateway system 3, the data letter of display sensor
Cease to targeted customer.
Embodiment 2.
Such as Fig. 1, source sensing device 1 may include passive sensor 12 and sensor control circuit 11.
Sensor control circuit 11 is powered by external power source to be operated, and is mainly included power circuit 111, is shaken
Swing device 112；Power amplifier 113；First data modulation circuitry 114；Detecting circuit 115；Antenna 116.During work, oscillator
112 carrier signals produced are launched after the amplification of power amplifier 113 by antenna 116, are that passive sensor 12 provides energy
Amount.
Needed for passive sensor 12 is obtained by between sensor control circuit 11 Non-contact electromagnetic coupling mode
Energy, by indirect power supply, realize passive.
Passive sensor 12 mainly includes energy management circuit 121；Energy storage circuit 122；Antenna transmission circuit 123；
Sensing circuit 124；Second data modulation circuitry 125.Second data modulation circuitry 125 includes appearance/frequency converter and frequency divider.
The carrier signal that oscillator 112 in sensor control circuit 11 is produced is led to after the amplification of power amplifier 113
Cross antenna 116 to launch, the energy that carrier signal is transmitted is passed through energy stores by the antenna transmission circuit 123 of passive sensor 12
Circuit 122 is stored, after the energy of storage is met using threshold value, and 125 pairs of sensings of the second data modulation circuitry of driving are believed
Breath is acquired.Appearance/frequency converter in second data modulation circuitry 125, the physical signalling that sensing circuit 124 is perceived is changed
Into digital fre-quency signal；Using frequency divider, data frame is loaded into carrier wave by backscattered modulation.Sensor control circuit
11, using detecting circuit 115, the first data modulation circuitry 114, obtain final sensor information.
The data of acquisition are transferred in data acquisition device 2 by sensor control circuit 11 by peripheral interface circuit.Pass
The output format of sensor information is the mixing output of multi-parameter, and is one section of continuous square wave.Data output format be from
Synchronizing signal starts, and is then followed successively by temperature, humidity, pressure value information；The output signal of passive sensor determines that it is gathered
Mode is the signal acquisition based on timer counter principle；Can be real according to the counting of synchronizing signal and sampling period and timer
Existing sensor information temperature, humidity, the separation of pressure value information, the data of the process Signal separator collected are sent again
Preceding processing work, including data frame format, WSN agreements, the wireless transmission then transmitted data in data acquisition device 2
In buffering area.
In data acquisition is carried out, if gathered data does not enter into wireless transmission buffering area, data acquisition is lost
Lose, re-start data acquisition, until buffering area there are data to be sent to produce；Data to be sent are carried out to transmit processing,
If condition indication circuit 202 does not flash, show that data are not sent.Handle sending failure, and to there is event
The data acquisition device 2 of barrier is reinitialized, until data are sent successfully.
In addition, as used in this application, term " module ", " system " refer to following every whole：
(1) the only circuit implementation of hardware (such as with the embodiment of only analog and/or digital circuit arrangement)；
(2) combination of circuit and software, such as：(i) combination of control circuit or (ii) control circuitry/software (including number
Word signal control circuit), the part of software and memory, its cooperation is to cause such as mobile phone or server etc
Equipment performs various functions；And
(3) such as circuit of micro-control circuit or micro-control circuit part etc, it needs the software or solid for operation
Part, even if software or firmware are not presented physically.
The definition of " unit " or " device " suitable for it is all (be included in the embodiment above any claim) it is right
The use of the term.As another example, term " module " can also cover only one control circuit or control circuit part with
And it attached software and/or firmware way of example.Term " device " can also cover such as adhesive integrated circuit, Cellular Networks
Network equipment or based band integrated circuit or application control circuit integrated circuit in other network equipments.
The utility model is produced with reference to according to the method, equipment (system) and computer program of the utility model embodiment
The flow chart and/or block diagram of product is described.It should be understood that can be in computer program instructions implementation process figure and/or block diagram
Each flow and/or square frame and the flow in flow chart and/or block diagram and/or the combination of square frame.These meters can be provided
Calculation machine programmed instruction is to the place of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices
Manage device to produce a machine so that the instruction for passing through computer or the computing device of other programmable data processing devices is produced
The raw dress for being used to realize the function in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Put.
Although having been described for preferred embodiment of the present utility model, those skilled in the art once know substantially
Creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to bag
Include preferred embodiment and fall into having altered and changing for the utility model scope.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claim and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (10)
1. passive sensing devices, it is characterised in that including：
Passive sensor, domestic environment index is sensed in the way of obtaining electric power from extraneous electromagnetic signals and digitlization ginseng is converted to
Number data；
Electromagnetism couples the sensor control circuit of the passive sensor, for the passive sensor launch above-mentioned electromagnetic signal with
And receive above-mentioned digitlization supplemental characteristic.
2. passive sensing devices according to claim 1, it is characterised in that passive sensor also includes：
Antenna transmission circuit, launches for predeterminated frequency and receives electromagnetic signal；
The second data modulation circuitry of the antenna transmission circuit is coupled, for receiving the electromagnetic signal from sensor control circuit
Or electromagnetic signal is sent to sensor control circuit, and set the predeterminated frequency；
The energy storage circuit of the antenna transmission circuit is coupled, for receiving energy that electromagnetic signal transmitted and being stored；
The energy management circuit of the energy storage circuit is coupled, the accumulation of energy is transmitted for detecting；And
For sensing domestic environment index and being converted to the sensing circuit of digitlization supplemental characteristic, sensing circuit coupling is above-mentioned
The second data modulation circuitry and energy storage circuit, with the threshold value that the energy management circuit is set obtain driving electric power.
3. passive sensing devices according to claim 2, it is characterised in that second data modulation circuitry includes：
Appearance/frequency converter, the physical signalling for passive sensor to be perceived is converted into digital fre-quency signal；
The frequency divider of the appearance/frequency converter is coupled, for handling the digital fre-quency signal after conversion.
4. the passive sensing devices according to any one of preceding claims, it is characterised in that the passive sensing devices are
Installation by adhering is in building sides.
5. passive sensing devices according to claim 1 or 2, it is characterised in that above-mentioned domestic environment index includes temperature
Degree, humidity, pressure value.
6. a kind of passive type wireless sensing system, including：
Several passive sensing devices as described in claim 1；
The data acquisition device of above-mentioned wireless sensing device is coupled, the digitlization parameter for receiving passive sensing devices transmission
Data；And
The gateway communicated with the data acquisition device, is analyzed and is visualized aobvious for the digitlization supplemental characteristic to reception
Show.
7. a kind of passive type wireless sensing system according to claim 6, its spy is being, described sensor control electricity
Road includes：
Oscillator；For producing carrier signal；
Power amplifier；Carrier signal for oscillator to be produced is amplified；
Antenna；For the carrier signal of amplification to be launched by it；
Detecting circuit；Target modulation signal is recovered from the brewed higher-order of oscillation；
First data modulation circuitry；And
Power circuit.
8. a kind of passive type wireless sensing system according to claim 7, it is characterised in that described passive sensor with
Between sensor control circuit energy transmission is carried out by way of distributing electromagnetic coupled.
9. a kind of passive type wireless sensing system according to claim 6, it is characterised in that described passive type is wirelessly passed
Sensing system is based on MESH network, and described MESH network uses plan range vector route agreement.
10. a kind of passive type wireless sensing system according to claim 6, it is characterised in that data acquisition device can be wrapped
Include microprocessor, power circuit, condition indication circuit, RF transmit-receive circuit, storage medium.
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| CN201621351778.8U CN206516060U (en) | 2016-12-10 | 2016-12-10 | Passive sensing devices and a kind of passive type wireless sensing system |
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| CN201621351778.8U CN206516060U (en) | 2016-12-10 | 2016-12-10 | Passive sensing devices and a kind of passive type wireless sensing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683387A (en) * | 2016-12-10 | 2017-05-17 | 杭州鸿雁智能科技有限公司 | Passive sensing device and passive type wireless sensing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683387A (en) * | 2016-12-10 | 2017-05-17 | 杭州鸿雁智能科技有限公司 | Passive sensing device and passive type wireless sensing system |
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