CN204903987U - Passive wireless data collector - Google Patents
Passive wireless data collector Download PDFInfo
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- CN204903987U CN204903987U CN201520336779.4U CN201520336779U CN204903987U CN 204903987 U CN204903987 U CN 204903987U CN 201520336779 U CN201520336779 U CN 201520336779U CN 204903987 U CN204903987 U CN 204903987U
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- 238000012545 processing Methods 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000013480 data collection Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
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Abstract
The utility model relates to a passive wireless data collector comprises bleeder network circuit, power supply circuit, the balanced amplifier circuit of signal, central processing unit, parameter configuration module, transceiver. Simultaneous processing gathers these analog quantity data and has the function of wireless transmission data. This practicality is the source of supplying power outward, does not have power cord and data transmission line, and the required power of working obtains from 4-20mA analog signal of field device output. The utility model discloses use convenient flexibility, compatible good, the suitability is strong, and the usage is extensive, like the analog quantity data acquisition of the hydrology / quality of water / water level gaseous emission volume monitoring, the relevant safe analog quantity data acquisition that automated production DCS system, irrigated area DCS system do not include sends, especially, set up to those dispersions and do not have the wireless transmission function, the analog quantity data acquisition that does not link to go into the field device of local control system or upper centralized control system as yet transmits.
Description
Technical field
The utility model belongs to automation field, is specifically related to a kind of passive wireless data collector.
Background technology
Traditional data acquisition unit is active online or be the self-condition restrictions such as source with battery because being confined to, and uses in some collection site inconvenience.
Although also have the method and product that become electric energy to power the light/wind/temperature/power/magnetic/sense/resistance/appearance/frequently/ripple/shake of acquisition etc. variable transitions by energy harvester and kinetic energy module/inverting model, but the electric energy that provides is more small after conversion, device is selected and requirement that data acquisition sends also higher.
Summary of the invention
The utility model, for the problems referred to above existed at present, provides a kind of passive wireless data collector.
The purpose of this utility model is achieved through the following technical solutions:
A kind of passive wireless data collector, is made up of potential-divider network, power circuit, signal equalization amplifying circuit, central processing unit, parameter configuration module, transceiver;
4 ~ 20mA simulating signal that potential-divider network access field apparatus exports, it exports the input end being connected respectively to power circuit and signal equalization amplifying circuit; The reference voltage source of power circuit modulation exports power supply respectively to signal equalization amplifier, central processing unit, parameter configuration and transceiver; The output of signal equalization amplifier is connected to the input of central processing unit; Central processing unit is bi-directionally connected with parameter configuration module, transceiver respectively.
The reference voltage source that described power circuit exports is 3.3V, provides circuit maximum consumption electric current 4mA.
Power circuit bypass picks out the unnecessary electricity of 4 ~ 20mA.
Power circuit model is LT431, and signal equalization amplifying circuit model is OPA2348, and central processing unit is a kind of low power processor, and model is TMP430, and parameter configuration module model is MAX3222, and transceiver is also a kind of low-power consumption transceiver, and model is TCM3xx.
The wireless transmit frequency that transceiver adopts is 868.3MHz.
The utility model need not outer power supply source, does not have power lead and data line, without battery, does not also obtain converting electrical energy after the variablees such as the light/wind/temperature difference/pressure/inductance/capacitance/frequency/sound wave by energy harvester and kinetic energy module.Power supply needed for its data acquisition unit work obtains from 4 ~ 20mA simulating signal that field apparatus exports.4 ~ 20mA simulating signal that the utility model access field apparatus exports, therefrom continual and steady needed for acquisition work power supply, realizes the function of passive collection analog data and wirelessly transmitting data.Notebook data collector is flexibly easy to use, without the need to laying any cable, without the need to outer power supply source, without the need to equipped battery, the collector of wireless transmission analog data, especially solve those scattering devices and there is no wireless transmission function, the analog data collection being not yet connected into local control system or upper strata centralized control system field apparatus and transmission problem, this type of industry/civilian field equipment data collection do not taken renovate to meet distributed collection data, top level control system Centralizing inspection, make overall plans and coordinate the demand of control.Compatible good, applicability is strong, as long as 4 ~ 20mA simulating signal that access field apparatus exports can complete collection to its analog data and transmission; Of many uses, as the analog data collection of the hydrology/water quality/water level/gas emissions monitoring, the analog data collection of the regarding safety that automated production DCS system, irrigated area DCS system do not comprise sends; Especially there is no an analog data collection transmission of wireless transmission function/be not yet the connected into field apparatus of local control system or upper strata centralized control system for those scattering devices, make not take to renovate and can meet data scatter collect and transmit, in top level control system Centralizing inspection, the demand making overall plans and coordinate control.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
In figure: 1, potential-divider network, 2, power circuit, 3, signal equalization amplifying circuit, 4, central processing unit, 5, parameter configuration module, 6, transceiver.
Embodiment
See accompanying drawing 1, the utility model passive wireless data collector is made up of potential-divider network 1, power circuit 2, signal equalization amplifying circuit 3, central processing unit 4, parameter configuration module 5, transceiver 6.Potential-divider network 1 accesses 4 ~ 20mA simulating signal that field apparatus exports, and outputs to power circuit 2 and signal equalization amplifying circuit 3.The reference voltage source that power circuit 2 is modulated exports power supply respectively to signal equalization amplifier 3, central processing unit 4, parameter configuration 5 and transceiver 6.The output of signal equalization amplifier 3 is connected to the input of central processing unit 4; Central processing unit 4 is bi-directionally connected with parameter configuration module 5, transceiver 6 respectively.
The reference voltage source that described power circuit 2 exports is 3.3V, and be enough to provide circuit maximum consumption electric current 4mA, because the utility model circuit all adopts low-power chip, complete machine at most only consumes 4mA, after potential-divider network 1 and power circuit 2 are modulated and taken, the electricity that 4 ~ 20mA is unnecessary is picked out by power circuit 2 bypass.The wireless transmit frequency that transceiver 6 adopts is 868.3MHz.
The utility model realizes gathering analog data and the scheme of wirelessly transmitting data is: notebook data collector obtains electric energy from field apparatus, 4 ~ 20mA simulating signal access potential-divider network 1 that field apparatus exports, by potential-divider network 1 by analog input to signal equalization amplifying circuit 3, be input to central processing unit 4 again after modulation, central processing unit 4 is bi-directionally connected parameter configuration module 5, transceiver 6 respectively; Stored by central processing unit 4 and the configuration parameter of execution parameter configuration module 5, acquisition process is from the analog data of signal equalization amplifying circuit 3, support that transceiver 6 sends the analog data gathered with 868.3MHz frequency real-time radio, indoor wireless communication distance 50 meters, without hindrance communication distance 300 meters.
In the specific embodiment described in Fig. 1, power circuit 2 model is LT431, signal equalization amplifying circuit 3 model is 0PA2348, central processing unit 4 is a kind of low power processors, model is TMP430, parameter configuration module 5 model is MAX3222, and transceiver 6 is also a kind of low-power consumption transceiver, and model is TCM3xx.
Claims (5)
1. a passive wireless data collector, is characterized in that: be made up of potential-divider network (1), power circuit (2), signal equalization amplifying circuit (3), central processing unit (4), parameter configuration module (5), transceiver (6);
4 ~ 20mA simulating signal that potential-divider network (1) access field apparatus exports, it exports the input end being connected respectively to power circuit (2) and signal equalization amplifying circuit (3); The reference voltage source that power circuit (2) is modulated exports power supply respectively to signal equalization amplifier (3), central processing unit (4), parameter configuration (5) and transceiver (6); The output of signal equalization amplifier (3) is connected to the input of central processing unit (4); Central processing unit (4) is bi-directionally connected with parameter configuration module (5), transceiver (6) respectively.
2. data acquisition unit according to claim 1, is characterized in that: the reference voltage source that described power circuit (2) exports is 3.3V, provides circuit maximum consumption electric current 4mA.
3. data acquisition unit according to claim 1 and 2, is characterized in that: power circuit (2) bypass picks out the unnecessary electricity of 4 ~ 20mA.
4. data acquisition unit according to claim 1 and 2, it is characterized in that: power circuit (2) model is LT431, signal equalization amplifying circuit (3) model is OPA2348, central processing unit (4) is a kind of low power processor, model is TMP430, parameter configuration module (5) model is MAX3222, and transceiver (6) is also a kind of low-power consumption transceiver, and model is TCM3xx.
5. data acquisition unit according to claim 4, is characterized in that: the wireless transmit frequency that transceiver (6) adopts is 868.3MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336779.4U CN204903987U (en) | 2015-05-25 | 2015-05-25 | Passive wireless data collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336779.4U CN204903987U (en) | 2015-05-25 | 2015-05-25 | Passive wireless data collector |
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| CN204903987U true CN204903987U (en) | 2015-12-23 |
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| CN201520336779.4U Expired - Fee Related CN204903987U (en) | 2015-05-25 | 2015-05-25 | Passive wireless data collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970567A (en) * | 2017-05-04 | 2017-07-21 | 深圳市蟠桃树科技有限公司 | A kind of configurable wireless data acquisition device and its implementation |
-
2015
- 2015-05-25 CN CN201520336779.4U patent/CN204903987U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970567A (en) * | 2017-05-04 | 2017-07-21 | 深圳市蟠桃树科技有限公司 | A kind of configurable wireless data acquisition device and its implementation |
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| CF01 | Termination of patent right due to non-payment of annual fee |