CN103871219A - Voltage signal wireless transmission device - Google Patents

Voltage signal wireless transmission device Download PDF

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Publication number
CN103871219A
CN103871219A CN201410094019.7A CN201410094019A CN103871219A CN 103871219 A CN103871219 A CN 103871219A CN 201410094019 A CN201410094019 A CN 201410094019A CN 103871219 A CN103871219 A CN 103871219A
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CN
China
Prior art keywords
pin
mcu
circuit
power supply
connect
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410094019.7A
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Chinese (zh)
Inventor
史伟超
陈云
李伯全
崔善超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HONGGUANG METER FACTORY CO Ltd
Original Assignee
JIANGSU HONGGUANG METER FACTORY CO Ltd
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Application filed by JIANGSU HONGGUANG METER FACTORY CO Ltd filed Critical JIANGSU HONGGUANG METER FACTORY CO Ltd
Priority to CN201410094019.7A priority Critical patent/CN103871219A/en
Publication of CN103871219A publication Critical patent/CN103871219A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a voltage signal wireless transmission device. A circuit of the voltage signal wireless transmission device comprises a power supply circuit, an AD (analog/digital) conversion circuit, a mater controller, an information storage and display circuit and a wireless communication module; a voltage signal (0-5V) output by a field instrument is acquired, data information is sent by a transmitter module after temperature compensation, the response speed is high, AD conversion precision is high, the stability is high, after a wireless module is started, a network is autonomously formed without artificial configuration, and the field and remote mentoring can be conveniently performed simultaneously.

Description

Voltage signal radio transmitting device
Technical field
The present invention relates to a kind of voltage signal acquisition conversion wireless base station apparatus, be specifically related to industry spot voltage signal radio transmitting device.
Background technology
Most important effect is played in being captured in industrial automation system of instrument and meter signal, each chain reaction, and process control all be unable to do without the measuring-signal of field instrumentation instrument and the collection of feedback signal.Traditional industry scene, the mode of connection that is connected between the instrument and meter of factory's each point and DCS in pulpit and PLC all adopts man-to-man physical connection or fieldbus mode.Adopt wired mode connection instrument and meter and control system conventionally to have following defect: 1, with high costs.Cable, crane span structure, safety barrier, isolator, compensating wire, DCS fastener and electric wire are laid space and are adopted etc. and need to spend a large amount of expenses, and construction period is very long, and labour cost is high, and wiring cost is the bottleneck of the wired TT&C system application of restriction; 2, difficult in maintenance.The wired instrument complex circuit of tradition, after breaking down, needs workman to investigate item by item to pulpit from field instrument to cable again, and line upkeep work difficulty is large, long in time limit, efficiency is low, faces thousands of cables more difficult when track remodelling.3, be difficult to carry out.Disperse when measuring and control node, while being subject to the geographic barrier such as river, railway, environmental impact, wiring difficulty is larger, special occasions, and as the rotations such as cement rotary kiln or mobile platform, signal cable cannot be laid especially.
Summary of the invention
The object of the invention is to: a kind of voltage signal radio transmitting device is provided, the voltage signal (0-5V) of collection site instrument and meter output, after temperature compensated, send data message by transmitter module, fast response time, AD conversion accuracy is high, stability is high, wireless module independently forms network without human configuration after starting, and convenient on-the-spot and long-rangely monitors also real-time voltage signal and the wireless connection conditions of displays temperature and each passage intuitively of the LCD on field instrument simultaneously.
Technical solution of the present invention is: the circuit of this voltage signal radio transmitting device comprises power circuit, A/D convertor circuit, master controller, information storage and display circuit and wireless communication module; What power circuit adopted is 5V lithium battery is as power supply, provides stable 3.3V power supply through AMS11173.3V voltage stabilizing chip for MCU and modules; A/D convertor circuit: input voltage (0-5V) is sent into LT6350 modular circuit after by R17 and R18 dividing potential drop, output two paths of differential signals, a road connects 4 pin of ADS1115 through R13, and an other road connects 5 pin of ADS1115 through R16; 1 pin of ADS1115 is connected ground with 3 pin, 8 pin of ADS1115 meet VDD, 3,6,7 pin of ADS1115 are unsettled, and 4, the 5 pin order ends of ADS1115 are to the two paths of differential signals of differential conversion circuit, and 9,10 bipods of ADS1115 meet respectively 29 of MCU and carry out communicating by letter of spi bus with 31 pin; Information storage and display circuit: chip external memory is selected the AT24C16 chip of Atmel company, adopt IIC interface, connect 8 pin by 3.3V Power supply, 1,2,3 physical address pins are connected with ground wire with 4 pin, write enable bit 7 pin are connected with 18 pin of MCU, 5 pin and 6 pin are connected to respectively 2,3 pin of IIC interface, and all connect the pull-up resistor of 10K; Display circuit is selected 12864 band character library liquid crystal, draw 20 pin row pins outward, 20 slots of corresponding circuits figure, the 1 pin ground connection of lcd1 on circuit diagram, 2,3 connect 3.3V power supply, 4,5,6,15,16,17 pin connect respectively the 12-17 pin of MCU, and the 7-14 pin of lcd1 connects respectively the 20-27 pin of MCU, 18 pin of lcd1 are connected with 20 pin of lcd1 after being connected in series a 1K resistance, and 19 pin of lcd1 connect 3.3V power supply; Wireless communication module: what wireless communication module adopted is the WIAPA-M1800 chip that the Chinese Academy of Sciences provides, and 32,33 pin of MCU are connected with the serial interface of WIAPA-M1800 wireless communication module respectively.
The present invention has the following advantages:
1, the present invention has adopted lithium battery power supply, and without paving cable, crane span structure, installs very conveniently, saves a large amount of executive cost, is not subject to the interference of geographical weather extraneous factor, can adapt to severe outdoor environment.
2, the present invention adopts Low-power Technology, high-performance lithium battery can use 2 years, adopt wireless communication technology, the signal of realizing in pair radius one kilometer range by wireless mode transmits, thereby has reduced difficulty of construction to a great extent, between every radio pressure converter, forms network, can cover the each region of plant area, not affected by geographical environment, when measurement point is during at rotatable platforms such as rotary kilns, radio pressure converter can solve the difficult problem that cable cannot be laid.
3, the present invention sends the wireless signal of carrying voltage signal by antenna gain, enters master system via gateway, widely applicable, can support the use with the instrument and meter that all kinds of output signals are 0-5V.
4, the present invention has HardwareUpgring function, and built-in ADS1115 chip has 2 road differential signal input functions, and if an existing Yong Liao mono-tunnel needs on-the-spot, can also Zai Jie mono-tunnel.
5, each voltage signal transmitting device is a built-in memory chip, so just very convenient our record and distinguish geographical location information and the measured signal kind of each signal source, facilitates engineering staff to detect and safeguards.
6, LCD MODULE support is hot-swappable, and the interface circuit of row's pin type is simple, can realize by software simulation sequential the demonstration of data completely, and need not drive chip under the powerful support of MCU, saves the cost of design.
7, the effectively environment temperature of Test Field of thermal module, carries out temperature compensation, also calls in addition temperature parameter simultaneously and carry out on-the-spot environment exploration in system, once note abnormalities, knows in time by radioing to staff.
8, built-in RS485 module, can make wireless redundance unit if necessary, improves the accurate letter of signal transmission.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present invention.
Fig. 2 is the circuit theory diagrams of Fig. 1.
Embodiment
Further illustrate technical solution of the present invention below in conjunction with accompanying drawing, should not be construed as the restriction to technical solution.
As shown in Figure 1, 2, the circuit of this voltage signal radio transmitting device comprises power circuit, A/D convertor circuit, master controller, information storage and display circuit and wireless communication module; The circuit of this voltage signal radio transmitting device connects as follows:
Power supply: select AMS11173.3V voltage stabilizing chip, avoid lithium battery voltage unstable, 3.3V power supply is by C2, C3, C16, C17, C18, C19, C20, C21 filtering, and 3 pin of AMS1117 connect lithium battery anode 1 pin ground connection, 2 pin meet the anodal VDD of signal;
MCU: the MSP430F149 chip of selecting TIX, program is downloaded the Jtag interface of use standard, 54,55,56,57 pin of MCU are connected with 1,3,5,7 pin of double cab JTAG respectively, 58 pin of MCU are connected with 11 pin of JTAG, and high speed crystal oscillator is selected 4M, and low speed crystal oscillator is selected 32.768KHz, XT2OUT, XT2IN are connected with 4M crystal oscillator, through C7, C9, to ground, XTOUT, XTIN are connected with 32.768KHz crystal oscillator, arrive ground through C6, C8; 58 pin of MCU are connected with the RST of reset circuit;
Differential conversion: input voltage (0-5V) is sent into LT6350 modular circuit after by R17 and R18 dividing potential drop, output two paths of differential signals, a road connects 4 pin of ADS1115 through R13, and an other road connects 5 pin of ADS1115 through R16;
16 road A/D modules: select the ADS1115 chip of Texas Instrument, 1 pin of ADS1115 is connected ground with 3 pin, and 8 pin meet VDD, 3,6,7 pin are unsettled, 4,5 pin order ends are to the two paths of differential signals of differential conversion circuit, and 9,10 bipods, meet respectively 29 of MCU and carry out communicating by letter of spi bus with 31 pin;
Eeprom memory: chip external memory is selected the AT24C16 chip of Atmel company, adopt IIC interface, connect 8 pin by 3.3V Power supply, 1,2,3 physical address pins are connected with ground wire with 4 pin, write enable bit 7 pin are connected with 18 pin of MCU, 5 pin and 6 pin are connected to respectively 2,3 pin of IIC interface, and all connect the pull-up resistor of 10K;
LCDs: select 12864 band character library liquid crystal, draw 20 pin row pins outward, 20 slots of corresponding circuits figure, the 1 pin ground connection of lcd1 on circuit diagram, 2,3 connect 3.3V power supply, 4,5,6,15,16,17 pin connect respectively the 12-17 pin of MCU, and the 7-14 pin of lcd1 connects respectively the 20-27 pin of MCU, 18 pin of lcd1 are connected with 20 pin of lcd1 after being connected in series a 1K resistance, and 19 of lcd1 cries and connects 3.3V power supply;
RS485 circuit: select the MAX3485 chip that is suitable for 3.3V voltage, 1 pin of MAX3485 and 4 pin connect respectively 32,33 pin of MCU, after connecting, receive on 2,3 pin of MAX3485 19 pin of MCU, the 5 pin ground connection of MAX3485,8 pin connect 3.3V power supply, receive 3 pin of JP1 after the 6 pin connection 20KR4 of MAX3485 by the pull-up resistor R5 of 10K, receive 2 pin of JP1 after the 7 pin connection 20KR3 of MAX3485 by the pull down resistor R2 of 10K, the 1 pin ground connection of JP1,4 pin connect 3.3V voltage;
Thermal module: select the DS18B20 chip of company of Dallas, the 1 pin ground connection of DS18B20,2 pin are received 28 pin of MCU by the pull-up resistor R9 of 4.7K, and 3 pin of DS18B20 connect 3.3V power supply, between VDD-to-VSS, carry out decoupling by 104 electric capacity;
Independent button: S2 mono-termination 3.3V power supply, the other end is received 29 pin of MCU by the pull down resistor R20 of 4.7K, S3 mono-termination 3.3V power supply, the other end passes through the pull down resistor R21 of 4.7K to 30 pin of MCU;
32,33 pin of radio communication: MCU are connected with the serial interface of WIAPA-M1800 wireless communication module respectively.

Claims (1)

1. voltage signal radio transmitting device, is characterized in that: the circuit of this voltage signal radio transmitting device comprises power circuit, A/D convertor circuit, master controller, information storage and display circuit and wireless communication module; The circuit of this voltage signal radio transmitting device connects as follows:
Power supply: select AMS1117 3.3V voltage stabilizing chip, avoid lithium battery voltage unstable, 3.3V power supply is by C2, C3, C16, C17, C18, C19, C20, C21 filtering, and 3 pin of AMS1117 connect lithium battery anode 1 pin ground connection, 2 pin meet the anodal VDD of signal;
MCU: the MSP430F149 chip of selecting TIX, program is downloaded the Jtag interface of use standard, 54,55,56,57 pin of MCU are connected with 1,3,5,7 pin of double cab JTAG respectively, 58 pin of MCU are connected with 11 pin of JTAG, and high speed crystal oscillator is selected 4M, and low speed crystal oscillator is selected 32.768KHz, XT2OUT, XT2IN are connected with 4M crystal oscillator, through C7, C9, to ground, XTOUT, XTIN are connected with 32.768KHz crystal oscillator, arrive ground through C6, C8; 58 pin of MCU are connected with the RST of reset circuit;
Differential conversion: input voltage (0-5V) is sent into LT6350 modular circuit after by R17 and R18 dividing potential drop, output two paths of differential signals, a road connects 4 pin of ADS1115 through R13, and an other road connects 5 pin of ADS1115 through R16;
16 road A/D modules: select the ADS1115 chip of Texas Instrument, 1 pin of ADS1115 is connected ground with 3 pin, and 8 pin meet VDD, 3,6,7 pin are unsettled, 4,5 pin order ends are to the two paths of differential signals of differential conversion circuit, and 9,10 bipods, meet respectively 29 of MCU and carry out communicating by letter of spi bus with 31 pin;
Eeprom memory: chip external memory is selected the AT24C16 chip of Atmel company, adopt IIC interface, connect 8 pin by 3.3V Power supply, 1,2,3 physical address pins are connected with ground wire with 4 pin, write enable bit 7 pin are connected with 18 pin of MCU, 5 pin and 6 pin are connected to respectively 2,3 pin of IIC interface, and all connect the pull-up resistor of 10K;
LCDs: select 12864 band character library liquid crystal, draw 20 pin row pins outward, 20 slots of corresponding circuits figure, the 1 pin ground connection of lcd1 on circuit diagram, 2,3 connect 3.3V power supply, 4,5,6,15,16,17 pin connect respectively the 12-17 pin of MCU, and the 7-14 pin of lcd1 connects respectively the 20-27 pin of MCU, 18 pin of lcd1 are connected with 20 pin of lcd1 after being connected in series a 1K resistance, and 19 of lcd1 cries and connects 3.3V power supply;
RS485 circuit: select the MAX3485 chip that is suitable for 3.3V voltage, 1 pin of MAX3485 and 4 pin connect respectively 32,33 pin of MCU, after connecting, receive on 2,3 pin of MAX3485 19 pin of MCU, the 5 pin ground connection of MAX3485,8 pin connect 3.3V power supply, receive 3 pin of JP1 after the 6 pin connection 20KR4 of MAX3485 by the pull-up resistor R5 of 10K, receive 2 pin of JP1 after the 7 pin connection 20KR3 of MAX3485 by the pull down resistor R2 of 10K, the 1 pin ground connection of JP1,4 pin connect 3.3V voltage;
Thermal module: select the DS18B20 chip of company of Dallas, the 1 pin ground connection of DS18B20,2 pin are received 28 pin of MCU by the pull-up resistor R9 of 4.7K, and 3 pin of DS18B20 connect 3.3V power supply, between VDD-to-VSS, carry out decoupling by 104 electric capacity;
Independent button: S2 mono-termination 3.3V power supply, the other end is received 29 pin of MCU by the pull down resistor R20 of 4.7K, S3 mono-termination 3.3V power supply, the other end passes through the pull down resistor R21 of 4.7K to 30 pin of MCU;
32,33 pin of radio communication: MCU are connected with the serial interface of WIAPA-M1800 wireless communication module respectively.
CN201410094019.7A 2014-03-14 2014-03-14 Voltage signal wireless transmission device Pending CN103871219A (en)

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Application Number Priority Date Filing Date Title
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006250744A (en) * 2005-03-11 2006-09-21 Tdk Corp Radio sensor device
CN201331406Y (en) * 2008-12-02 2009-10-21 西安中星测控有限公司 Intelligent pressure transmitter
CN102305653A (en) * 2011-05-19 2012-01-04 江苏红光仪表厂有限公司 Wireless industrial liquid level transmitter
CN203132723U (en) * 2013-01-06 2013-08-14 金湖中博物联网科技有限公司 Wireless integrated temperature transmitter
CN203216666U (en) * 2013-03-26 2013-09-25 肖兰 Micro-power-consumption wireless pressure transmitter
CN103512676A (en) * 2013-10-18 2014-01-15 常州大学 Temperature sensor based on wireless HART (highway addressable remote transducer) communication technology
CN103528751A (en) * 2013-10-18 2014-01-22 常州大学 Pressure sensor based on wireless HART (Highway Addressable Remote Transducer) communication technology
CN203838863U (en) * 2014-03-14 2014-09-17 江苏红光仪表厂有限公司 Voltage signal wireless transmission device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006250744A (en) * 2005-03-11 2006-09-21 Tdk Corp Radio sensor device
CN201331406Y (en) * 2008-12-02 2009-10-21 西安中星测控有限公司 Intelligent pressure transmitter
CN102305653A (en) * 2011-05-19 2012-01-04 江苏红光仪表厂有限公司 Wireless industrial liquid level transmitter
CN203132723U (en) * 2013-01-06 2013-08-14 金湖中博物联网科技有限公司 Wireless integrated temperature transmitter
CN203216666U (en) * 2013-03-26 2013-09-25 肖兰 Micro-power-consumption wireless pressure transmitter
CN103512676A (en) * 2013-10-18 2014-01-15 常州大学 Temperature sensor based on wireless HART (highway addressable remote transducer) communication technology
CN103528751A (en) * 2013-10-18 2014-01-22 常州大学 Pressure sensor based on wireless HART (Highway Addressable Remote Transducer) communication technology
CN203838863U (en) * 2014-03-14 2014-09-17 江苏红光仪表厂有限公司 Voltage signal wireless transmission device

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
LINEAR: "《LT6350技术手册》", 31 December 2010, LINEAR *
MAXIM: "《MAX3485技术手册》", 31 December 1994, MAXIM *
TEXAS INSTRUMENTS: "《ADS1115技术手册》", 31 August 2009, TEXAS INSTRUMENTS *
TEXAS INSTRUMENTS: "《MSP430F149技术手册》", 30 June 2004, TEXAS INSTRUMENTS *
万军等: "基于WIA-PA的新型无线温度变送器设计", 《工业仪表与自动化装置》 *

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Application publication date: 20140618