CN203732928U - Energy source data acquisition terminal with GPRS interface - Google Patents
Energy source data acquisition terminal with GPRS interface Download PDFInfo
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- CN203732928U CN203732928U CN201420132065.7U CN201420132065U CN203732928U CN 203732928 U CN203732928 U CN 203732928U CN 201420132065 U CN201420132065 U CN 201420132065U CN 203732928 U CN203732928 U CN 203732928U
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Abstract
An embodiment of the utility model discloses an energy source data acquisition terminal with a GPRS interface. The energy source data acquisition terminal comprises a CPU module, a pressure sensing module, a flow sensing module, an analog-digital AD conversion module, an Ethernet interface, an RS232 interface, an infrared module, a USB interface, a key input module and a liquid crystal display screen. The CPU module utilizes an AT91RM9200-type embedded ARM microprocessor which is produced by an ATMEL company. The energy source data acquisition terminal further comprises a GPRS module in separation arrangement with a main board where the CPU module locates. The output end of the AD conversion module is connected with the AT91RM9200-type microprocessor through an SPI bus. The energy source data acquisition terminal is used for carrying out remote meter reading and data uploading by utilizing the high-performance embedded ARM microprocessor and a GPRS module for industrial applications simultaneously, thereby enabling the function of remote meter reading to be stable and a circuit to be simple in structure.
Description
Technical field
The utility model belongs to energy monitoring equipment technical field, relates to especially a kind of energy source data acquisition terminal of the GPRS of having interface.
Background technology
Energy source data acquisition terminal is for the analog signalses such as the pressure of collecting device and flow, switch, start-stop, the switching value signals such as warning.For the various energy signal data that gather, need the data processing centre's server to far-end of timing or not timing to upload, data can be uploaded to server by wired or wireless transmission mode.GPRS (General Packet Radio Service, GPRS) because it is by data traffic charging, there is hardly the tie-time (in always online state), and the transfer rate up to 115kbps can be provided, be particularly suitable for this type of energy source data acquisition terminal the remote data towards commercial Application collection and upload.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of energy source data acquisition terminal of the GPRS of having interface, in order to adopt and to carry out data upload towards the GPRS module of commercial Application when adopting high performance embedded-type ARM microprocessor, make remote data upload function stable, circuit structure is simple.
For achieving the above object, the technical solution of the utility model is:
A kind of energy source data acquisition terminal with GPRS interface, comprise CPU module, pressure sensitive module, flow sensing module, modulus AD modular converter, Ethernet interface, RS232 interface, infrared module, USB interface, keyboard input module, LCDs, the embedded-type ARM microprocessor that the model that described CPU module adopts atmel corp to produce is AT91RM9200, further comprise the GPRS module with the separated setting of CPU module place mainboard, described GPRS module is connected with mainboard by row's pin, the output terminal of described pressure sensitive module connects AD modular converter Yi road input end, the output terminal of described flow sensing module connects another road input end of AD modular converter, the output terminal of AD modular converter is connected with AT91RM9200 by spi bus, described Ethernet interface, RS232 interface, infrared module, Ethernet interface corresponding to the two-way connection AT91RM9200 of USB interface, RS232 interface, infrared module, USB interface end, the output terminal of the described keyboard input module arranging for the parameter of energy source data acquisition terminal connects the input end of AT91RM9200 by universal serial bus, the output terminal of described AT91RM9200 is connected and is used for showing parameter, current pressure and the data on flows of setting, the described LCD MODULE of the value of energy source signal by universal serial bus.
Preferably, the M590 that the side of having of described GPRS module employing double frequency clear data wireless industrial module produces is as master chip.
Preferably, described pressure sensitive module further comprises pressure transducer, the first pull-up resistor and the first operational amplifier, described pressure transducer has the standard current signal output port of 4～20mA, the standard current signal output terminal of described pressure transducer inputs to the first operational amplifier after being connected in series the first pull-up resistor, the output terminal of the first operational amplifier connects AD modular converter Yi road input end
Preferably, described flow sensing module further comprises flowmeter, the second pull-up resistor and the second operational amplifier, described flowmeter has the standard current signal output port of 4-20mA, the standard current signal output terminal of flowmeter inputs to the second operational amplifier after being connected in series the second pull-up resistor, and the output terminal of the second operational amplifier connects another road input end of AD modular converter.
Preferably, described AD modular converter adopts the A/D converter AD73360 of 16, six passage.
Preferably, the 1st pin VINP2 of described AD73360 is connected the output terminal of the first operational amplifier as a road input end with the 2nd pin VINN1; The 3rd pin VINP1 is connected the output terminal of the second operational amplifier as another road input end with the 4th pin VINN1; The first capacitor C 1 of the 6th pin REFCAP serial connection one end ground connection; The 7th pin ADD2 connects 3.3V power supply simultaneously and connects the second capacitor C 2 of one end ground connection; The first resistance R 1 of the 8th pin AGND2 serial connection one end ground connection; The 9th pin DGND ground connection; The 10th pin DVDD also connects the 3rd capacitor C 3 of one end ground connection and the second resistance R 2 that the 4th capacitor C 4 is connected in series a termination 3.3V power supply simultaneously, the 3rd resistance and the 5th capacitances in series, the other end of the 3rd resistance connects 3.3V power supply, and the 5th electric capacity other end connects the earth terminal of the 3rd electric capacity and the 4th electric capacity; The 11st pin RESET connects the 4th resistance while of a termination 3.3V voltage and connects the 6th electric capacity of one end ground connection; The 13rd pin MCLK connects the 7th electric capacity of one end ground connection; The 14th pin connects the PA1 pin of AT91RM9200; The 17th pin connects the PA0 pin of AT91RM9200; The 18th pin SE is connected in series the 5th resistance of a termination 3.3V power supply; The 20th pin AVDD1 connects 3.3V power supply and is connected in series the 8th electric capacity and the 9th electric capacity of one end ground connection.
Compared with prior art, the utlity model has following beneficial effect:
(1) by adopting the clear data GSM/GPRS wireless module of the special double frequency for commercial Application, can provide the teledata upload function of high-accuracy stable;
(2) mode that GPRS module adopts contact pin to be connected with mainboard arranges, and makes dismounting and keeps in repair more convenient;
(3), by adopting high performance embedded-type ARM microprocessor AT91RM9200, by simple peripheral circuit, can realize the processing accuracy of multichannel data acquisition and raising energy source data;
(4) adopt the AD modular converter of modular design, when the energy source data that system is detected at need changes, only need corresponding interpretive model be set in CPU module can obtain corresponding energy signal, without the change of carrying out on hardware.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the energy source data acquisition terminal with GPRS interface of the utility model embodiment;
Fig. 2 is the circuit pin block diagram of AT91RM9200PQFP embedded-type ARM microprocessor of CPU module of the energy source data acquisition terminal with GPRS interface of the utility model embodiment;
Fig. 3 is the circuit diagram of GPRS module of the energy source data acquisition terminal with GPRS interface of the utility model embodiment;
Fig. 4 is the circuit diagram of AD modular converter of the energy source data acquisition terminal with GPRS interface of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
On the contrary, the utility model contain any by claim, defined in marrow of the present utility model and scope, make substitute, modification, equivalent method and scheme.Further, for the public is had a better understanding to the utility model, in below details of the present utility model being described, detailed some specific detail sections of having described.Do not have for a person skilled in the art the description of these detail sections can understand the utility model completely yet.
Referring to Fig. 1, be depicted as the structured flowchart of the energy source data acquisition terminal with GPRS interface of the utility model embodiment, it comprises CPU module 101, pressure sensitive module 102, flow sensing module 103, modulus AD modular converter 111, Ethernet interface 104, RS232 interface 106, infrared module 107, usb 1 08, keyboard input module 109, LCDs 110, the embedded-type ARM microprocessor that the model that wherein CPU module 101 adopts atmel corp to produce is AT91RM9200, it referring to Fig. 2, is the circuit pin block diagram of AT91RM9200PQFP embedded-type ARM microprocessor, further comprise the GPRS module 105 with the separated setting of CPU module place mainboard, GPRS module 105 is connected with mainboard by row's pin, the output terminal of pressure sensitive module 102 connects AD modular converter 111 mono-road input end, the output terminal of flow sensing module 103 connects another road input end of AD modular converter 111, the output terminal of AD modular converter 111 is connected with AT91RM9200 by spi bus, Ethernet interface 104, RS232 interface 106, infrared module 107, Ethernet interface corresponding to the two-way connection AT91RM9200 of usb 1 08, RS232 interface, infrared module, the interface end of USB interface, the output terminal of the keyboard input module 109 arranging for the parameter of energy source data acquisition terminal connects the input end of AT91RM9200 by universal serial bus, the output terminal of AT91RM9200 is connected and is used for showing parameter, current pressure and the data on flows of setting, the described LCD MODULE of the value of energy source signal by universal serial bus.Its course of work is as follows: wherein RS232 interface 106, infrared module 107, and usb 1 08 is for this locality debugging of energy source data acquisition terminal.Pressure sensitive module 102 is for source data signals comprising vapour, gas, the collection of the pressure criteria current signal of oil also converts thereof into the voltage signal that can input to AD modular converter, flow sensing module 103 is for source data packet drawing together vapour, gas, the collection of the flow standard current signal of oil also converts thereof into the voltage signal that can input to AD modular converter, AD modular converter 111 is for converting the current signal that characterizes pressure and flow to digital signal, CPU module is for processing digital signal, mainly that pressure signal and flow signal are carried out, after product, time integral is multiplied by a constant again, can source data signals thereby obtain.Ethernet interface 104 is for adopting the mode of wire cable that the server to being placed on Intemet network of the energy source data collecting is transmitted, and GPRS module 105 is for adopting wireless mode that the server to being placed on Intemet network of the energy source data collecting is uploaded.
The energy source data acquisition terminal with GPRS interface of above embodiment, GPRS module adopts the mode of contact pin to be connected with the mainboard at CPU module place, and discrete set-up mode makes the installation of GPRS module and keeps in repair more convenient.Ethernet interface, RS232 interface, infrared module, keyboard input module and LCD MODULE can realize by general module of the prior art, in the utility model, will not repeat.
In a concrete Application Example, referring to Fig. 3, be the circuit diagram of GPRS module of the energy source data acquisition terminal with GPRS interface of the utility model embodiment, known GPRS module adopts the side of the having M590 of double frequency clear data wireless industrial module as master chip.Wherein, 2,3 pin VCC_MAIN are module primary power input end; 5 pin LIGHT are duty indication pin, and the collector by a triode V6 on this pin connects a green LED, and the conducting of controlling LED by V6 is used to indicate GPRS module duty; 7 pin RXD are that module is accepted data terminal, by a triode V2, control conducting or the shutoff of a two-color diode, 8 pin TXD are that module transmission data are controlled conducting or the shutoff of a two-color diode by a triode V1, two-color diode flicker is used to indicate the data transmit-receive state of GPRS, 14 pin SIMVCC are SIM card power supply output pin, 1,1 ' pin and 4, the 4 ' pin of the SIM card module that connection model is LK-1016; 18 pin EMERGOFF are emergency cutoff pin, connect a triode V5 and control its emergency cutoff, and 19 pin ON/OFF are that pin is controlled in switching on and shutting down, and low level start, controls its switching on and shutting down by a triode V4.Meanwhile, M590 is connected with mainboard by 15X2 contact pin with sim card slot.By above GPRS module, the energy source data that can realize energy source data acquisition terminal is transmitted to the far-end server on Intemet by wireless mode.
In a concrete Application Example, pressure sensitive module further comprises pressure transducer, the first pull-up resistor and the first operational amplifier, pressure transducer has the standard current signal output port of 4～20mA, the standard current signal output terminal of pressure transducer inputs to the first operational amplifier after being connected in series the first pull-up resistor, the output terminal of the first operational amplifier connects AD modular converter Yi road input end, by the first pull-up resistor and the second operational amplifier, can convert the standard current signal of pressure transducer output to voltage signal.
In a concrete Application Example, flow sensing module further comprises flowmeter, the second pull-up resistor and the second operational amplifier, flowmeter has the standard current signal output port of 4-20mA, the standard current signal output terminal of flowmeter inputs to the second operational amplifier after being connected in series the second pull-up resistor, the output terminal of the second operational amplifier connects another road input end of AD modular converter, by the second pull-up resistor and the second operational amplifier, can convert the standard current signal of flowmeter output to voltage signal.
In a concrete application example, AD modular converter adopts the A/D converter AD73360 of 16, six passage.Shown in Figure 4 is the circuit diagram of AD modular converter, and the 1st pin VINP2 of AD73360 is connected the output terminal of the first operational amplifier as a road input end with the 2nd pin VINN1; The 3rd pin VINP1 is connected the output terminal of the second operational amplifier as another road input end with the 4th pin VINN1; The first capacitor C 1 of the 6th pin REFCAP serial connection one end ground connection; The 7th pin ADD2 connects 3.3V power supply simultaneously and connects the second capacitor C 2 of one end ground connection; The first resistance R 1 of the 8th pin AGND2 serial connection one end ground connection; The 9th pin DGND ground connection; The 10th pin DVDD also connects the 3rd capacitor C 3 of one end ground connection and the second resistance R 2 that the 4th capacitor C 4 is connected in series a termination 3.3V power supply simultaneously, the 3rd resistance R 3 is connected with the 5th capacitor C 5, the other end of the 3rd resistance R 3 connects 3.3V power supply, and the 5th capacitor C 5 other ends connect the earth terminal of the 3rd capacitor C 3 and the 4th capacitor C 4; The 11st pin RESET connects the 4th 4 whiles of resistance R of a termination 3.3V voltage and connects the 6th capacitor C 6 of one end ground connection; The 13rd pin MCLK connects the 7th capacitor C 7 of one end ground connection; The 14th pin connects the PA1 pin of AT91RM9200; The 17th pin connects the PA0 pin of AT91RM9200; The 18th pin SE is connected in series the 5th resistance R 5 of a termination 3.3V power supply; The 20th pin AVDD1 connects 3.3V power supply and is connected in series the 8th capacitor C 8 and the 9th capacitor C 9 of one end ground connection.AD73360 has six passage A/D converters, the equal synchronized sampling of each passage with guarantee interchannel hardly life period (phase place) postpone, therefore applicable multichannel analog input.By the AD modular converter of above setting, can convert pressure signal and flow signal to CPU module accessible signal.
The energy source data acquisition terminal more than arranging, by adopting the AT91RM9200 of the system building around ARM920T ARM Thumb processor completely, there is abundant system and the interface of applying peripheral hardware and standard, thereby the solution of a kind of low-power consumption, low cost, high-performance monolithic energy source data acquisition terminal is provided.AT91RM9200 is integrated many standard interfaces, comprise USB2.0 at full speed main frame and device port and with most peripheral hardwares with in the widely used 10/100Base-T Ethernet of network layer MAC controller (MAC), in addition, it also provides a series of peripheral hardwares that meet industrial standard, can in audio frequency, telecommunications, the outside line of Flash carminum and smart card, use, make conveniently to add RS232 interface 106 as above, infrared module 107, usb 1 08, GPRS module 105 and Ethernet interface 104.The energy source data acquisition terminal arranging by above employing AT91RM9200, circuit structure is simple, and data processing function is powerful.
In a concrete application example, the energy source data acquisition terminal with GPRS interface of the utility model embodiment is exerted oneself for gathering the actual of water pump, AD modular converter one tunnel gathers the pressure of water pump water outlet, one tunnel is for gathering the flow of water pump water outlet, according to the pressure of water pump water outlet and flow, CPU inside modules calculates exerting oneself of water pump water outlet, is also actual energy of exerting oneself, and can obtain the energy signal of water pump.
In another concrete application example, be applied to the energy source data acquisition terminal that blower fan is exerted oneself, flowmeter adopts the vortex precession flowmeter with the output of 4-20mA standard current signal to carry out the detection of air mass flow, those skilled in that art it should be understood that, in addition, as adopt orifice plate to add differential flow converter, vortex shedding flow meter, Annular Round Model PFB, thermal gas flowmeter, the flowmeter that is applicable to air mass flow detection that mass flowmeter has the output of 4-20mA standard current signal can be used in the utility model embodiment.Pressure transducer is used for measuring the air pressure of blower fan, AD modular converter one tunnel gathers the flow signal of flowmeter, one tunnel is used for gathering pressure signal, and CPU inside modules is carried out time integral and is multiplied by efficiency constant by flow and pressure, can obtain the energy signal that blower fan is exerted oneself.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. an energy source data acquisition terminal with GPRS interface, comprise CPU module, pressure sensitive module, flow sensing module, modulus AD modular converter, Ethernet interface, RS232 interface, infrared module, USB interface, keyboard input module, LCDs, it is characterized in that, the embedded-type ARM microprocessor that the model that described CPU module adopts atmel corp to produce is AT91RM9200, further comprise the GPRS module with the separated setting of CPU module place mainboard, described GPRS module is connected with mainboard by row's pin, the output terminal of described pressure sensitive module connects AD modular converter Yi road input end, the output terminal of described flow sensing module connects another road input end of AD modular converter, the output terminal of AD modular converter is connected with AT91RM9200 by spi bus, described Ethernet interface, RS232 interface, infrared module, Ethernet interface corresponding to the two-way connection AT91RM9200 of USB interface, RS232 interface, infrared module, USB interface end, the output terminal of the described keyboard input module arranging for the parameter of energy source data acquisition terminal connects the input end of AT91RM9200 by universal serial bus, the output terminal of described AT91RM9200 is connected and is used for showing parameter, current pressure and the data on flows of setting, the described LCD MODULE of the value of energy source signal by universal serial bus.
2. the energy source data acquisition terminal with GPRS interface according to claim 1, is characterized in that, the M590 that the side of having of described GPRS module employing double frequency clear data wireless industrial module produces is as master chip.
3. the energy source data acquisition terminal with GPRS interface according to claim 1, it is characterized in that, described pressure sensitive module further comprises pressure transducer, the first pull-up resistor and the first operational amplifier, described pressure transducer has the standard current signal output port of 4～20mA, the standard current signal output terminal of described pressure transducer inputs to the first operational amplifier after being connected in series the first pull-up resistor, and the output terminal of the first operational amplifier connects AD modular converter Yi road input end.
4. according to the arbitrary described energy source data acquisition terminal with GPRS interface of claims 1 to 3, it is characterized in that, described flow sensing module further comprises flowmeter, the second pull-up resistor and the second operational amplifier, described flowmeter has the standard current signal output port of 4-20mA, the standard current signal output terminal of flowmeter inputs to the second operational amplifier after being connected in series the second pull-up resistor, and the output terminal of the second operational amplifier connects another road input end of AD modular converter.
5. according to the arbitrary described energy source data acquisition terminal with GPRS interface of claims 1 to 3, it is characterized in that, described AD modular converter adopts the A/D converter AD73360 of 16, six passage.
6. the energy source data acquisition terminal with GPRS interface according to claim 3, is characterized in that, the 1st pin VINP2 of described AD73360 is connected the output terminal of the first operational amplifier as a road input end with the 2nd pin VINN1; The 3rd pin VINP1 is connected the output terminal of the second operational amplifier as another road input end with the 4th pin VINN1; The first capacitor C 1 of the 6th pin REFCAP serial connection one end ground connection; The 7th pin ADD2 connects 3.3V power supply simultaneously and connects the second capacitor C 2 of one end ground connection; The first resistance R 1 of the 8th pin AGND2 serial connection one end ground connection; The 9th pin DGND ground connection; The 10th pin DVDD also connects the 3rd capacitor C 3 of one end ground connection and the second resistance R 2 that the 4th capacitor C 4 is connected in series a termination 3.3V power supply simultaneously, the 3rd resistance and the 5th capacitances in series, the other end of the 3rd resistance connects 3.3V power supply, and the 5th electric capacity other end connects the earth terminal of the 3rd electric capacity and the 4th electric capacity; The 11st pin RESET connects the 4th resistance while of a termination 3.3V voltage and connects the 6th electric capacity of one end ground connection; The 13rd pin MCLK connects the 7th electric capacity of one end ground connection; The 14th pin connects the PA1 pin of AT91RM9200; The 17th pin connects the PA0 pin of AT91RM9200; The 18th pin SE is connected in series the 5th resistance of a termination 3.3V power supply; The 20th pin AVDD1 connects 3.3V power supply and is connected in series the 8th electric capacity and the 9th electric capacity of one end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132065.7U CN203732928U (en) | 2014-03-24 | 2014-03-24 | Energy source data acquisition terminal with GPRS interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132065.7U CN203732928U (en) | 2014-03-24 | 2014-03-24 | Energy source data acquisition terminal with GPRS interface |
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| Publication Number | Publication Date |
|---|---|
| CN203732928U true CN203732928U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420132065.7U Expired - Fee Related CN203732928U (en) | 2014-03-24 | 2014-03-24 | Energy source data acquisition terminal with GPRS interface |
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| CN (1) | CN203732928U (en) |
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2014
- 2014-03-24 CN CN201420132065.7U patent/CN203732928U/en not_active Expired - Fee Related
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Granted publication date: 20140723 Termination date: 20170324 |