CN202372210U - General intelligent converting and conveying device used for industrial sensor - Google Patents

General intelligent converting and conveying device used for industrial sensor Download PDF

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Publication number
CN202372210U
CN202372210U CN 201120544335 CN201120544335U CN202372210U CN 202372210 U CN202372210 U CN 202372210U CN 201120544335 CN201120544335 CN 201120544335 CN 201120544335 U CN201120544335 U CN 201120544335U CN 202372210 U CN202372210 U CN 202372210U
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China
Prior art keywords
sensor
signal
unit
processor unit
connects
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CN 201120544335
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Chinese (zh)
Inventor
张馨
吴文彪
田洪武
鲍锋
单飞飞
李文龙
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Beijing Research Center of Intelligent Equipment for Agriculture
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Beijing Research Center of Intelligent Equipment for Agriculture
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Abstract

The utility model discloses a general intelligent converting and conveying device used for an industrial sensor, and relates to the technical field of industrial sensors. The device includes a general purpose sensor unit and a processor unit; the general purpose sensor unit connects a sensor and the processor unit, and is used for receiving sensor signals from the sensor and sending to the processor unit; the processor unit is used for converting the sensor signals to at least one type of 4-20mA current signals, RS485 signals, Ethernet signals or wireless signals; and the sensor signals include analog signals, switching signals, frequency signals, and digital signals with a protocol. Through the general purpose sensor unit, the device can be connected with the digital quantity sensor with the protocol, which simulates standard voltage and current, nonstandard voltage and current, and switching value, so as to conveniently realize most of agricultural environmental monitoring converting and conveying; and one converting and conveying device can sense, convert and convey various sensor signals.

Description

Device is sent in the universal intelligent change that is used for agriculture sensor
Technical field
The utility model relates to agriculture sensor technical field, and device is sent in particularly a kind of universal intelligent change that is used for agriculture sensor.
Background technology
In the agricultural production activity, agricultural equipment be in operation will be often to some mechanical quantity, geometric sense, chemistry amount, biomass detects or keep watch on.Comprise such as mechanical quantity: displacement, speed, acceleration, power, moment, power, pressure, flow, temperature, hardness, density, temperature, proportion and viscosity etc.; Geometric sense comprises: length, angle, shape, position, surfaceness, waviness of the surface etc.From the angle of signal, all need pass through sensor, convert thereof into electric signal (can also convert light signal modern age to), then send to processor through transmitter again and handle.
Because many, the communication standard disunity of agricultural production actual demand measurement parameter has multiple information acquisition, protocol suite all-in-one-piece trend at present.Publication number is that the utility model patent of CN201903367U discloses a kind of universal HART transmitter module, and it carries out filtering, amplifies and send into microprocessor module after adopting the multi channel signals sampling module that multi-channel analog and numeric type sensor are sampled; The control signal that the constant voltage/constant current stimulating module receives microprocessor module is that sensor provides driving voltage or electric current; After microprocessor module calculated, handles and change sampled signal, modulation and the demodulation of accomplishing the HART signal through the HART communication module outputed to the HART main website, through electric current output module output 4-20mA loop current to the upper strata control system.
Existing transmitter mostly is to plant the fieldbus signals such as 4~20mA current signal or HART that sensor becomes the standard of sending into to single.Can only connect a kind of sensor and become and send,, cause that on-the-spot needs are installed variety classes, device is sent in different change, safeguard that assembly manipulation is inconvenient like temperature sensor, pressure transducer, humidity sensor etc.Simultaneously a lot of transmitters are merely able to become send exports a kind of signal, such as the 4-20mA current signal, can not satisfy the demand of docking port in the agricultural engineering.Modern agriculture presses for a kind of general-purpose interface, and connecting required sensor easily, and conversion is output as the multiple standards signal.
The utility model content
The technical matters that (one) will solve
The technical matters that the utility model will solve is: how to provide a kind of universal intelligent that is used for agriculture sensor to become and send device, to adapt to different types of sensor.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of universal intelligent that is used for agriculture sensor to become and send device, and it comprises: general purpose transducer unit and processor unit; Said general purpose transducer unit connects sensor and said processor unit, is used to receive the sensor signal from sensor, and sends to said processor unit; Said processor unit is used for converting said sensor signal into 4~20mA current signal, RS485 signal, ethernet signal or wireless signal at least a; Said sensor signal comprises: the digital signal of simulating signal, switching signal, frequency signal and band agreement.
Preferably, said general purpose transducer unit comprises: sensor interface, analog quantity channel, switching value passage and digital quantity passage; Said sensor interface connects sensor and said analog quantity channel, switching value passage, digital quantity passage and current source module; Said analog quantity channel also connects said processor unit, and being used in the future, the simulating signal of autobiography sensor flows to said processor unit; Said switching value passage also connects said processor unit, and being used in the future, the switching signal or the frequency signal of autobiography sensor flow to said processor unit; Said digital quantity passage also connects said processor unit, and being used in the future, the digital signal of the band agreement of autobiography sensor flows to said processor unit.
Preferably, said general purpose transducer unit also comprises: current source module and voltage source module; Said current source module connects said sensor interface, is used to said sensor interface reference current source is provided; Said voltage source module connects said current source module, processor unit and sensor interface, is used to said current source module, processor unit and sensor interface reference voltage is provided.
Preferably, said analog quantity channel comprises: first amplifier and second amplifier; Said first amplifier connects said sensor interface, is used for sending to said second amplifier after the current analog signal of autobiography sensor converts voltage analog signal in the future, and perhaps the voltage analog signal of autobiography sensor directly sends to said second amplifier in the future; Said second amplifier connects said first amplifier and said processor unit, is used for sending to said processor unit after the voltage analog signal amplification from said first amplifier.
Preferably, said analog quantity channel also comprises: instrumentation amplifier, low-pass filter and analog to digital converter; Said instrumentation amplifier connects said sensor interface, is used for differential analog signal or light current simulating signal from sensor are carried out processing and amplifying; Said low-pass filter connects said instrumentation amplifier, is used for differential analog signal or light current simulating signal after amplifying are carried out Filtering Processing; Said analog to digital converter connects said low-pass filter and said processor unit, and being used for filtered differential analog signal or light current analog signal conversion is digital signal, and sends to said processor unit.
Preferably, said device also comprises the communication unit that is connected with said processor unit; Said communication unit comprises: be used for exporting 4~20mA current signal the electric current communication interface, be used to export the RS485 signal the RS485 communication interface, be used to export the ethernet communication interface of ethernet signal or be used to export wireless communication interface at least a of wireless signal.
Preferably, said system also comprises: dial-up is provided with the unit; Said dial-up is provided with the unit and connects said processor unit, is used to be provided with the address of said device, and sensor kind and range.
Preferably, said system also comprises: display unit; Said display unit connects said processor unit, is used to the relevant information that shows that sensor acquisition arrives.
Preferably, said system also comprises: storage unit; Said storage unit connects said processor unit, is used to store parameter, sensor check and correction curve and the sensor parameters of said device.
Preferably, said system also comprises: power supply unit; Said power supply unit connects said general purpose transducer unit, processor unit, communication unit, dial-up unit, display unit and storage unit is set.
(3) beneficial effect
The said universal intelligent change that is used for agriculture sensor of the utility model send device to have following advantage: (1) said general purpose transducer unit; The digital sensors that can connect simulation normal voltage, electric current, nonstandard electric current and voltage, switching value, band agreement; The most of Agricultural Environmental Monitoring of convenient realization becomes to be sent; Need not independent design or assembling sensor special transmitter, a transmitter can the perception change send the multiple sensors signal; And can select the analog to digital converter of different amplification, filter factor and different accuracy, speed according to the sensor actual conditions, make information acquisition more accurate and flexible; (2) said communication unit is supported 4~20mA current signal, RS485 signal, ethernet signal or wireless signal output, can satisfy field data and transmit multiple demand.
Description of drawings
Fig. 1 is that the apparatus module structural representation is sent in the described universal intelligent change that is used for agriculture sensor of the utility model embodiment;
Fig. 2 is the utility model embodiment said general purpose transducer unit and processor unit internal module structural representation;
Fig. 3 is that the said universal intelligent that is used for agriculture sensor of the utility model embodiment becomes the loam cake synoptic diagram that send device;
Fig. 4 is that the said universal intelligent that is used for agriculture sensor of the utility model embodiment becomes the lower cover synoptic diagram that send device.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Fig. 1 is that the apparatus module structural representation is sent in the described universal intelligent change that is used for agriculture sensor of the utility model embodiment.As shown in Figure 1, said device comprises: power supply unit 100, and the general purpose transducer unit 200, the dial-up that are connected with said power supply unit 100 are provided with unit 300, display unit 400, storage unit 500, processor unit 600 and communication unit 700.
Said power supply unit 100 is used to said general purpose transducer unit 200, dial-up is provided with unit 300, display unit 400, storage unit 500, processor unit 600 and communication unit 700 power supplies.
Said general purpose transducer unit 200 connects sensor and said processor unit 600, is used to receive the sensor signal from sensor, and sends to said processor unit 600.Said sensor signal comprises: the digital signal of simulating signal, switching signal, frequency signal and band agreement.
Said dialing is provided with unit 300 and connects said processor unit 600, is used to be provided with the address of said device, and sensor kind and range.
Said display unit 400 connects said processor unit 600, is used to the relevant information that shows that sensor acquisition arrives.
Said storage unit 500 connects said processor unit 600, is used to store parameter, sensor check and correction curve and the sensor parameters of said device, thereby makes said device have self-calibration function.
Said processor unit 600 is used for switching signal or the frequency signal imported with the simulating signal through 204 inputs of said analog quantity channel, through said switching value passage 205; And the digital signal of the band agreement through 206 inputs of said digital quantity passage, convert at least a in 4~20mA current signal, RS485 signal, ethernet signal or the wireless signal into.
Said communication unit 700 specifically comprises: the electric current communication interface 701, RS485 communication interface, ethernet communication interface and the wireless communication interface that all are connected with said processor unit 600.Said electric current communication interface 701 is used to export 4~20mA current signal; Said RS485 communication interface is used to export the RS485 signal; Said ethernet communication interface is used to export ethernet signal; Said wireless communication interface is used to export wireless signal.
Fig. 2 is the utility model embodiment said general purpose transducer unit and processor unit internal module structural representation; As shown in Figure 2, said general purpose transducer unit 200 specifically comprises: sensor interface 201, current source module 202, voltage source module 203, analog quantity channel 204, switching value passage 205 and digital quantity passage 206.Said current source module 202, voltage source module 203, analog quantity channel 204, switching value passage 205 all are connected said power supply unit 100 with digital quantity passage 206.Said processor unit 600 specifically comprises: AD (mode switch) module 601, SPI (Serial Peripheral Interface; Serial Peripheral Interface (SPI)) module 602, I2C (Inter-Integrated Circuit, a kind of twin wire universal serial bus) module 603, counter 604 and I/O (I/O) module 605.
Said sensor interface 201 connects sensor, with sensor-lodging.Said current source module 202 connects said sensor interface 201, is used to said sensor interface 201 reference current source is provided.Said voltage source module 203 connects said current source module 202, sensor interface 201 and AD module 601, and being used to said current source module 202, sensor interface 201 and AD module 601 provides standard stable 3V reference voltage.
Said analog quantity channel 204 (dotted line institute region among Fig. 2) specifically comprises again: first subchannel and second subchannel.Said first subchannel comprises: first amplifier 2041 and second amplifier 2042; Second subchannel comprises: instrumentation amplifier 2043, low-pass filter 2044 and analog to digital converter 2045.Said first subchannel is mainly used in input current simulating signal or voltage analog signal; Concrete: said first amplifier 2041 adopts TLV2451 to chip; It connects said sensor interface 201; Be used for sending to said second amplifier after current analog signal with sensor acquisition converts voltage analog signal into, perhaps the voltage analog signal with sensor acquisition directly sends to said second amplifier; Said second amplifier 2042 adopts the MCP6S92 chips, and it connects said first amplifier 2041 and SPI module 602, sends to said SPI module 602 after being used for the voltage analog signal from said first amplifier amplified 4,8,16 or 32 times; Said SPI module 602 also connects said AD module, and the voltage analog signal that is exaggerated arrives said AD module through said SPI module 602, submits to said processor unit 600 through after the analog to digital conversion.Said second subchannel is mainly used in input difference simulating signal or light current simulating signal; Concrete: said instrumentation amplifier 2043 adopts the INA155 chip; It connects said sensor interface 201, is used for the differential analog signal or the light current simulating signal of sensor acquisition are carried out processing and amplifying; Said low-pass filter 2044 adopts the MAX7413 chip, and it connects said instrumentation amplifier 2043, is used for differential analog signal or light current simulating signal after amplifying are carried out Filtering Processing; Said analog to digital converter 2045 adopts the MCP3421 chip, and it connects said low-pass filter 2044, and being used for differential analog signal or light current analog signal conversion through Filtering Processing is digital signal; Said analog to digital converter 2045 also connects said I2C module, through said I2C module said digital signal is submitted to said processor unit 600.
Said switching value passage 205 connects said sensor interface 201 sum counters 604, and being used in the future, the switching signal or the frequency signal of autobiography sensor flow to said processor unit 600.
Said digital quantity passage 206 connects said sensor interface 201 and I/O module 605, and being used in the future, the digital signal of the band agreement of autobiography sensor flows to said processor unit 600.
Fig. 3 is that the said universal intelligent that is used for agriculture sensor of the utility model embodiment becomes the loam cake synoptic diagram that send device; Fig. 4 is that the said universal intelligent that is used for agriculture sensor of the utility model embodiment becomes the lower cover synoptic diagram that send device.Like Fig. 3 and shown in Figure 4, said device also comprises: loam cake 801 and lower cover 802.Said loam cake 801 is provided with segment encode liquid crystal 8011, and said segment encode liquid crystal 8011 connects said display unit 400.Also be provided with first water joint 8012 and second water joint 8013 on the said loam cake 801; Said first water joint 8012 connects said communication unit 700; Said second water joint 8013 connects said general purpose transducer unit 200.Said lower cover 802 is connected with circuit board 900 through screw 100, and said power supply unit 100, general purpose transducer unit 200, dial-up are provided with unit 300, display unit 400, storage unit 500, processor unit 600 and communication unit 700 and all are arranged on the said circuit board 900.Said loam cake 801 is realized being tightly connected through O-ring seal with lower cover 802, and degree of protection reaches IP67, can satisfy the agricultural use environment.
The said universal intelligent change that is used for agriculture sensor of the utility model embodiment send device to have following advantage: (1) said general purpose transducer unit; The digital sensors that can connect simulation normal voltage, electric current, nonstandard electric current and voltage, switching value, band agreement; The most of Agricultural Environmental Monitoring of convenient realization becomes to be sent; Need not independent design or assembling sensor special transmitter, a transmitter can the perception change send the multiple sensors signal; And can select the analog to digital converter of different amplification, filter factor and different accuracy, speed according to the sensor actual conditions, make information acquisition more accurate and flexible; (2) said communication unit is supported 4~20mA current signal, RS485 signal, ethernet signal or wireless signal output, can satisfy field data and transmit multiple demand.
Above embodiment only is used to explain the utility model; And be not the restriction to the utility model; The those of ordinary skill in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to the category of the utility model, and the scope of patent protection of the utility model should be defined by the claims.

Claims (10)

1. device is sent in a universal intelligent change that is used for agriculture sensor, it is characterized in that, comprising: general purpose transducer unit and processor unit; Said general purpose transducer unit connects sensor and said processor unit, is used to receive the sensor signal from sensor, and sends to said processor unit; Said processor unit is used for converting said sensor signal into 4~20mA current signal, RS485 signal, ethernet signal or wireless signal at least a; Said sensor signal comprises: the digital signal of simulating signal, switching signal, frequency signal and band agreement.
2. device as claimed in claim 1 is characterized in that, said general purpose transducer unit comprises: sensor interface, analog quantity channel, switching value passage and digital quantity passage; Said sensor interface connects sensor and said analog quantity channel, switching value passage, digital quantity passage and current source module; Said analog quantity channel also connects said processor unit, and being used in the future, the simulating signal of autobiography sensor flows to said processor unit; Said switching value passage also connects said processor unit, and being used in the future, the switching signal or the frequency signal of autobiography sensor flow to said processor unit; Said digital quantity passage also connects said processor unit, and being used in the future, the digital signal of the band agreement of autobiography sensor flows to said processor unit.
3. device as claimed in claim 2 is characterized in that, said general purpose transducer unit also comprises: current source module and voltage source module; Said current source module connects said sensor interface, is used to said sensor interface reference current source is provided; Said voltage source module connects said current source module, processor unit and sensor interface, is used to said current source module, processor unit and sensor interface reference voltage is provided.
4. device as claimed in claim 2 is characterized in that, said analog quantity channel comprises: first amplifier and second amplifier; Said first amplifier connects said sensor interface, is used for sending to said second amplifier after the current analog signal of autobiography sensor converts voltage analog signal in the future, and perhaps the voltage analog signal of autobiography sensor directly sends to said second amplifier in the future; Said second amplifier connects said first amplifier and said processor unit, is used for sending to said processor unit after the voltage analog signal amplification from said first amplifier.
5. device as claimed in claim 4 is characterized in that, said analog quantity channel also comprises: instrumentation amplifier, low-pass filter and analog to digital converter; Said instrumentation amplifier connects said sensor interface, is used for differential analog signal or light current simulating signal from sensor are carried out processing and amplifying; Said low-pass filter connects said instrumentation amplifier, is used for differential analog signal or light current simulating signal after amplifying are carried out Filtering Processing; Said analog to digital converter connects said low-pass filter and said processor unit, and being used for filtered differential analog signal or light current analog signal conversion is digital signal, and sends to said processor unit.
6. device as claimed in claim 1 is characterized in that said device also comprises the communication unit that is connected with said processor unit; Said communication unit comprises: be used for exporting 4~20mA current signal the electric current communication interface, be used to export the RS485 signal the RS485 communication interface, be used to export the ethernet communication interface of ethernet signal or be used to export wireless communication interface at least a of wireless signal.
7. device as claimed in claim 6 is characterized in that said system also comprises: dial-up is provided with the unit; Said dial-up is provided with the unit and connects said processor unit, is used to be provided with the address of said device, and sensor kind and range.
8. device as claimed in claim 7 is characterized in that said system also comprises: display unit; Said display unit connects said processor unit, is used to the relevant information that shows that sensor acquisition arrives.
9. device as claimed in claim 8 is characterized in that said system also comprises: storage unit; Said storage unit connects said processor unit, is used to store parameter, sensor check and correction curve and the sensor parameters of said device.
10. device as claimed in claim 9 is characterized in that said system also comprises: power supply unit; Said power supply unit connects said general purpose transducer unit, processor unit, communication unit, dial-up unit, display unit and storage unit is set.
CN 201120544335 2011-12-22 2011-12-22 General intelligent converting and conveying device used for industrial sensor Expired - Fee Related CN202372210U (en)

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CN 201120544335 CN202372210U (en) 2011-12-22 2011-12-22 General intelligent converting and conveying device used for industrial sensor

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103926857A (en) * 2014-02-27 2014-07-16 山东安博仪器股份有限公司 Agricultural environment information collection and control device with wireless interface circuit
CN104376665A (en) * 2014-11-28 2015-02-25 中国电子科技集团公司第二十八研究所 Monitoring node of perimeter protection system of wireless sensor network
CN105182131A (en) * 2015-09-10 2015-12-23 中国家用电器研究院 General test platform and test method
CN109579897A (en) * 2018-12-12 2019-04-05 上海兰宝传感科技股份有限公司 A kind of Intelligent hand-held readout instrument applied to geotechnical engineering
CN110132354A (en) * 2019-05-20 2019-08-16 水利部交通运输部国家能源局南京水利科学研究院 A kind of sensor measurement port multiplex system and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103926857A (en) * 2014-02-27 2014-07-16 山东安博仪器股份有限公司 Agricultural environment information collection and control device with wireless interface circuit
CN103926857B (en) * 2014-02-27 2016-08-17 山东安博仪器股份有限公司 A kind of agricultural environment information acquisition control device with wireless interface circuit
CN104376665A (en) * 2014-11-28 2015-02-25 中国电子科技集团公司第二十八研究所 Monitoring node of perimeter protection system of wireless sensor network
CN105182131A (en) * 2015-09-10 2015-12-23 中国家用电器研究院 General test platform and test method
CN105182131B (en) * 2015-09-10 2018-04-03 中国家用电器研究院 Universal testing method
CN109579897A (en) * 2018-12-12 2019-04-05 上海兰宝传感科技股份有限公司 A kind of Intelligent hand-held readout instrument applied to geotechnical engineering
CN110132354A (en) * 2019-05-20 2019-08-16 水利部交通运输部国家能源局南京水利科学研究院 A kind of sensor measurement port multiplex system and method
CN110132354B (en) * 2019-05-20 2021-08-06 水利部交通运输部国家能源局南京水利科学研究院 System and method for multiplexing measurement ports of multiple types of sensors

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Granted publication date: 20120808

Termination date: 20121222