CN104539308B - A kind of intrinsic safety type passive RF circuit - Google Patents
A kind of intrinsic safety type passive RF circuit Download PDFInfo
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- CN104539308B CN104539308B CN201510025369.2A CN201510025369A CN104539308B CN 104539308 B CN104539308 B CN 104539308B CN 201510025369 A CN201510025369 A CN 201510025369A CN 104539308 B CN104539308 B CN 104539308B
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Abstract
The invention discloses a kind of intrinsic safety type passive RF circuit existing and meeting the requirement of intrinsic safety required standard under the hazardous environments such as blast, including: radio frequency antenna module, energy storage module, energy monitoring module and energy control module；Radio frequency antenna module includes receiving and transtation mission circuit and power conversion circuits, receives with transtation mission circuit while completing to launch and receive radiofrequency signal, also receives the radio-frequency (RF) energy that radio frequency main website transmits, and radio-frequency (RF) energy is converted into direct current energy by power conversion circuits；Energy storage module includes the energy storage circuit for storing described direct current energy；Energy monitoring module includes electric quantity monitoring circuit and electricity variation control circuit；When the electricity that electric quantity monitoring circuit records exceedes setting value, unnecessary electricity is transferred in the energy storage circuit of energy storage module by electricity variation control circuit；Energy control module includes: voltage jump suppression circuit and current break suppression circuit.This radio circuit can be widely used in the industries such as Internet of Things.
Description
Technical field
The present invention relates to a kind of intrinsic safety type i.e. exist and can meet intrinsic safety required standard under the hazardous environments such as blast and want
The passive RF circuit for Internet of Things industry asked.
Background technology
It is presently used for danger or has radio frequency (RF) circuit of Internet of Things under explosion environment the most all to have employed general
Internet of Things radio circuit under logical environment, there is unexpected sudden change in the curent change of this circuit, it is impossible at electricity
Meet the requirement of intrinsic safety environment on, and easily bring electrical injuries situation to radio-frequency antenna, be substantially reduced
The reliability of Internet of Things industry radio circuit, meanwhile, its power supply overwhelming majority uses lithium battery or button electricity
Pond, cannot be carried out the control in effective range to the electric energy output when circuit works, adds electricity
Consumption, reduce the life-span of battery, and add maintenance cost.
Summary of the invention
The technical problem to be solved is to provide one and exists and can meet intrinsic safety under the hazardous environments such as blast
The intrinsic safety type passive RF circuit that required standard requires.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of intrinsic safety type passive RF electricity
Road, including: radio frequency antenna module, energy storage module, energy monitoring module and energy control module；
Described radio frequency antenna module includes: receives and transtation mission circuit and power conversion circuits, receives and send
Circuit, while completing to launch and receive radiofrequency signal, also receives the radio-frequency (RF) energy that radio frequency main website transmits, and
Sending the radio-frequency (RF) energy received to power conversion circuits, power conversion circuits will transmit the radio-frequency (RF) energy of coming
It is converted into direct current energy；
Described energy storage module includes: energy storage circuit, and this energy storage circuit is used for storing described
The direct current energy that power conversion circuits is converted；
Described energy monitoring module includes: electric quantity monitoring circuit and electricity variation control circuit, electric quantity monitoring
The electricity of the direct current energy that power conversion circuits is converted into by circuit is measured in real time；Power conversion circuits turns
Direct current energy obtained by changing is controlled output by electricity variation control circuit；When the electricity that electric quantity monitoring circuit records
When exceeding setting value, the energy that unnecessary electricity transfers to energy storage module is deposited by electricity variation control circuit
In storage circuit；
Described energy control module includes: voltage jump suppression circuit and current break suppression circuit, energy
The direct current energy that change-over circuit is converted into, will after voltage jump suppression circuit and current break suppression circuit
The voltage and current of direct current energy controls in the OK range that intrinsic safety specifies.
As further preferred version, described intrinsic safety type passive RF circuit also includes: protecting energy
Module, this protecting energy module includes: energy automatic identification circuit and the automatic cut-off circuit of break-make, and energy is certainly
Dynamic identification circuit identifies the size of described reception and the radio-frequency (RF) energy of transtation mission circuit reception automatically, when receive
When radio-frequency (RF) energy exceedes predetermined energy threshold values, the automatic cut-off circuit of break-make cuts off radio frequency antenna module and radio frequency master
Link between standing.
As further preferred version, in described intrinsic safety type passive RF circuit, described radio-frequency antenna
Module also includes reception protecting energy circuit, and its effect is the radio frequency energy sent by the radio frequency main website received
Amount carries out intensity voltage conversion, to identify the intensity of the radio-frequency (RF) energy received, when the radio-frequency (RF) energy received
When exceeding predetermined energy threshold values, cut off the connection received between transtation mission circuit and power conversion circuits.
As further preferred version, in described intrinsic safety type passive RF circuit, described voltage jump
Suppression circuit includes: constant voltage circuit, voltage clamping circuit and voltage compensating circuit, voltage clamping circuit and electricity
Pressure compensates circuit and is all attempted by the outfan of constant voltage circuit；Current break suppression circuit includes: constant-current circuit,
Current clamp circuit and current compensation circuit, current clamp circuit is gone here and there after concatenating mutually with current compensation circuit and is located at
On the outlet line of constant-current circuit.
As further preferred version, in described intrinsic safety type passive RF circuit, described energy storage
Module also includes homeostasis energy circuit, and its effect is to make electric charge deposit to low concentration from high concentration memory block
Storage area spreads so that be stored in all of memory block equalizing charge.
The invention has the beneficial effects as follows: intrinsic safety type passive RF circuit of the present invention, hence it is evident that improve should
For there is the safety and reliability under the hazardous environments such as blast, comply fully with intrinsic safety required standard, completely
The requirement having the industry of intrinsic safety requirement quickly to realize Internet of Things can be met；And by using radio-frequency (RF) energy to change
Function, it is achieved that the passive of radio circuit, it is not necessary to be equipped with external dedicated power supply, such that it is able to adapt to higher
The demand of the technology development and change of Internet of Things, greatly reduces construction cost and the maintenance cost of Internet of Things；This
Outward, controlled by what the voltage and current in circuit was suddenlyd change effective and reasonablely, solve circuit to electric energy
The use of unreasonable energy stream, such that it is able to have with the reception antenna matched described radio circuit
The protection of effect ground, extends the service life of described radio circuit and reception antenna.
Accompanying drawing explanation
Fig. 1 is the electric theory structure schematic diagram of the present invention.
Fig. 2 is the internal structure schematic diagram of local circuit in Fig. 1.
Reference in Fig. 1 to Fig. 2 is: 1, energy storage module, 101, energy storage circuit, 102,
Homeostasis energy circuit, 2, protecting energy module, 201, energy automatic identification circuit, 202, break-make from
Dynamic cut-off circuit, 3, radio frequency antenna module, 301, receive and transtation mission circuit, 302, power conversion circuits, 303,
Receive protecting energy circuit, 4, energy monitoring module, 401, electric quantity monitoring circuit, 402, electricity is deteriorated control
Circuit processed, 5, energy control module, 501, voltage jump suppression circuit, 5011, constant voltage circuit, 5012,
Voltage clamping circuit, 5013, voltage compensating circuit, 502, current break suppression circuit, 5021, Constant Electric Current
Road, 5022, current clamp circuit, 5023, current compensation circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the concrete real of a kind of intrinsic safety type passive RF circuit of the present invention is described in detail
Execute scheme:
As it is shown in figure 1, a kind of intrinsic safety type passive RF circuit of the present invention, including: energy storage mould
Block 1, protecting energy module 2, radio frequency antenna module 3, energy monitoring module 4 and energy control module 5, institute
The radio frequency antenna module 3 stated includes: receive and transtation mission circuit 301, power conversion circuits 302 and reception energy
Protection circuit 303, receives with transtation mission circuit 301 while completing to launch and receive radiofrequency signal, also receives
The radio-frequency (RF) energy that radio frequency main website transmits, and send the radio-frequency (RF) energy received to power conversion circuits 302, energy
Amount change-over circuit 302 is converted into direct current energy by transmitting the radio-frequency (RF) energy come, and receives the work of protecting energy circuit
With being that the radio-frequency (RF) energy by the radio frequency main website received sends carries out intensity voltage conversion, receive with identification
The intensity of radio-frequency (RF) energy, when the radio-frequency (RF) energy received exceedes predetermined energy threshold values, cuts off and receives and send
Connection between circuit 301 and power conversion circuits 302；Described energy storage module 1 includes: energy
Storage circuit 101 and homeostasis energy circuit 102, energy storage circuit 101 is used for storing described energy and turns
Changing the direct current energy that circuit 302 is converted, the effect of homeostasis energy circuit 102 is to make electric charge from height
Concentration memory block is spread to low concentration memory block so that be stored in all of memory block equalizing charge；Described
Energy monitoring module 4 include: electric quantity monitoring circuit 401 and electricity variation control circuit 402, electric quantity monitoring
The electricity of the direct current energy that power conversion circuits 302 is converted into is measured by circuit 401 in real time；Energy turns
Change direct current energy obtained by circuit 302 conversion and controlled output by electricity variation control circuit 402, i.e. work as electricity
When the electricity that observation circuit 401 records exceedes setting value, electricity variation control circuit 402 is by unnecessary electricity
Transfer in the energy storage circuit 101 of energy storage module 1, certainly, in storing process, by energy
Amount dynamic balance circuit 102 dynamically adjusts the concentration between each energy memory block；Described energy control
Molding block 5 includes: voltage jump suppression circuit 501 and current break suppression circuit 502, by described energy
The direct current energy that change-over circuit 302 is converted into suppresses electricity through voltage jump suppression circuit 501 and current break
Behind road 502, the voltage and current of direct current energy is controlled in the OK range that intrinsic safety specifies, such as Fig. 2 institute
Showing, described voltage jump suppression circuit 501 includes: constant voltage circuit 5011, voltage clamping circuit 5012 and
Voltage compensating circuit 5013, voltage clamping circuit 5012 and voltage compensating circuit 5013 are all attempted by constant voltage electricity
On the outfan on road 5011, described current break suppression circuit includes: constant-current circuit 5021, current clamp
Circuit 5022 and current compensation circuit 5023, current clamp circuit 5022 and current compensation circuit 5023 phase string
After connecing, string is located on the outlet line of constant-current circuit 5021；Described protecting energy module 2 includes: energy is certainly
Dynamic identification circuit 201 and the automatic cut-off circuit of break-make 202, energy automatic identification circuit 201 identifies described automatically
Receive the size of the radio-frequency (RF) energy received with transtation mission circuit 301, when the radio-frequency (RF) energy received exceedes regulation energy
During amount threshold values, the automatic cut-off circuit of break-make 202 cuts off link between radio frequency antenna module 3 and radio frequency main website.
The operation principle of the present invention is: the reception in radio frequency antenna module 3 not only needs with transtation mission circuit 301
Complete the transmission-receiving function of radiofrequency signal, in addition it is also necessary to collect radio-frequency (RF) energy, and will by power conversion circuits 302
The radio-frequency (RF) energy collected is converted into direct current energy, and this direct current energy is providing energy to prop up for whole radio circuit
While support, also under the control of energy monitoring module 4, unnecessary energy is stored energy storage circuit
In 101, in storing process, dynamically adjusted by homeostasis energy circuit 102 and store at each energy
Concentration between district so that be stored in all of memory block equalizing charge；Described energy control module 5
In voltage jump suppression circuit 501 and current break suppression circuit 502 can effectively suppress described radio frequency electrical
Less desirable or the electric current exceeded standard and the sudden change of voltage is threatened present in road.
In sum, only presently preferred embodiments of the present invention, not it is used for limiting the model that the present invention implements
Enclose, all impartial changes made according to the shape described in scope of the invention as claimed, structure, feature and spirit
With modification, all should be included in scope of the presently claimed invention.
Claims (3)
1. an intrinsic safety type passive RF circuit, including: radio frequency antenna module, it is characterised in that also include: energy storage module, energy monitoring module, energy control module and protecting energy module；
Described radio frequency antenna module includes: receive and transtation mission circuit and power conversion circuits, receive with transtation mission circuit while completing to launch and receive radiofrequency signal, also receive the radio-frequency (RF) energy that radio frequency main website transmits, and sending the radio-frequency (RF) energy received to power conversion circuits, power conversion circuits is converted into direct current energy by transmitting the radio-frequency (RF) energy come；
Described energy storage module includes: energy storage circuit, and this energy storage circuit is for storing the direct current energy that described power conversion circuits is converted；
Described energy monitoring module includes: electric quantity monitoring circuit and electricity variation control circuit, the electricity of the direct current energy that power conversion circuits is converted into by electric quantity monitoring circuit is measured in real time；Direct current energy obtained by power conversion circuits conversion is controlled output by electricity variation control circuit；When the electricity that electric quantity monitoring circuit records exceedes setting value, unnecessary electricity is transferred in the energy storage circuit of energy storage module by electricity variation control circuit；
Described energy control module includes: voltage jump suppression circuit and current break suppression circuit, the voltage and current of direct current energy, after voltage jump suppression circuit and current break suppression circuit, is controlled in the OK range that intrinsic safety specifies by the direct current energy that power conversion circuits is converted into；
Described protecting energy module includes: energy automatic identification circuit and the automatic cut-off circuit of break-make; energy automatic identification circuit identifies the size of described reception and the radio-frequency (RF) energy of transtation mission circuit reception automatically; when the radio-frequency (RF) energy received exceedes predetermined energy threshold values, the automatic cut-off circuit of break-make cuts off link between radio frequency antenna module and radio frequency main website；
Described radio frequency antenna module also includes reception protecting energy circuit; its effect is that the radio-frequency (RF) energy that the radio frequency main website received sends is carried out intensity voltage conversion; to identify the intensity of the radio-frequency (RF) energy received; when the radio-frequency (RF) energy received exceedes predetermined energy threshold values, cut off the connection received between transtation mission circuit and power conversion circuits.
2. intrinsic safety type passive RF circuit as claimed in claim 1, it is characterized in that: described voltage jump suppression circuit includes: constant voltage circuit, voltage clamping circuit and voltage compensating circuit, voltage clamping circuit and voltage compensating circuit are all attempted by the outfan of constant voltage circuit；Current break suppression circuit includes: constant-current circuit, current clamp circuit and current compensation circuit, and current clamp circuit is gone here and there after concatenating mutually with current compensation circuit and is located on the outlet line of constant-current circuit.
3. intrinsic safety type passive RF circuit as claimed in claim 1 or 2, it is characterized in that: described energy storage module also includes homeostasis energy circuit, its effect is to make electric charge spread from high concentration memory block to low concentration memory block so that be stored in all of memory block equalizing charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025369.2A CN104539308B (en) | 2015-01-19 | 2015-01-19 | A kind of intrinsic safety type passive RF circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025369.2A CN104539308B (en) | 2015-01-19 | 2015-01-19 | A kind of intrinsic safety type passive RF circuit |
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| Publication Number | Publication Date |
|---|---|
| CN104539308A CN104539308A (en) | 2015-04-22 |
| CN104539308B true CN104539308B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510025369.2A Active CN104539308B (en) | 2015-01-19 | 2015-01-19 | A kind of intrinsic safety type passive RF circuit |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106993325A (en) * | 2016-01-21 | 2017-07-28 | 北京睿创投资管理中心（有限合伙） | Radio communication base station selection startup method, starter and user equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103679082A (en) * | 2012-09-24 | 2014-03-26 | 国民技术股份有限公司 | Radio frequency tag, tag reader and radio frequency tag charging method |
| CN203588271U (en) * | 2013-11-05 | 2014-05-07 | 南阳防爆电气研究所有限公司 | Flame-proof type non-contact IC card reading device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8665069B2 (en) * | 2007-10-19 | 2014-03-04 | Petratec International Ltd. | RFID tag especially for use near conductive objects |
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2015
- 2015-01-19 CN CN201510025369.2A patent/CN104539308B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103679082A (en) * | 2012-09-24 | 2014-03-26 | 国民技术股份有限公司 | Radio frequency tag, tag reader and radio frequency tag charging method |
| CN203588271U (en) * | 2013-11-05 | 2014-05-07 | 南阳防爆电气研究所有限公司 | Flame-proof type non-contact IC card reading device |
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| CN104539308A (en) | 2015-04-22 |
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