CN202110653U - Multifunctional wireless acquisition controller - Google Patents
Multifunctional wireless acquisition controller Download PDFInfo
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- CN202110653U CN202110653U CN201120216855XU CN201120216855U CN202110653U CN 202110653 U CN202110653 U CN 202110653U CN 201120216855X U CN201120216855X U CN 201120216855XU CN 201120216855 U CN201120216855 U CN 201120216855U CN 202110653 U CN202110653 U CN 202110653U
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Abstract
The utility model relates to a data acquirer, particularly relates to a wireless data acquirer, and discloses a multifunctional wireless acquisition controller. The multifunctional wireless acquisition controller comprises a central processing unit, a power source, a wireless communication module, interfaces, an analog input module, an analog output module, a digital input module and a digital output module, the central processing unit is respectively electrically connected with the power source, the interfaces, the analog input module, the analog output module, the digital input module and the digital output module, the central processing unit is in wireless communication with the wireless communication module, and the interfaces are communicated with an external instrument wired network. The multifunctional wireless acquisition controller has multiple interfaces, supports multiple digital and analog input and output channels, and is low in equipment cost and wide in application.
Description
Technical field
The utility model relates to a kind of data acquisition unit, relates in particular to a kind of data acquisition device.
Background technology
Wireless technology has incomparable advantage than cable technology in many fields, it can solve the insurmountable difficult problem of many wired modes, and more convenient bring for people's work and life.The development of wireless RTU module can the employing wireless data acquisition and a plurality of occasions such as Industry Control.Existing wireless collection controller function is more single, and its application has significant limitation.
The utility model content
The technique effect of the utility model can overcome above-mentioned defective, and a kind of multifunction wireless acquisition controller is provided, and it is the data of collection site instrument directly.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: it comprises central microprocessor, power supply, wireless communication module, interface, analog quantity load module, analog output module, digital quantity input module, digital quantity output module; Central microprocessor is electrically connected with power supply, interface, analog quantity load module, analog output module, digital quantity input module, digital quantity output module respectively; Central microprocessor and wireless communication module wireless telecommunications, interface and the communication of external meters cable network.
This wireless collection controller is realized the data acquisition and the control function of industry spot, and module can realize input, the output of 2 tunnel analog quantitys of 8 tunnel analog quantitys, the I/O of 8 way switch amounts, functions such as the input and output of pulse signal.Software is supported Modbus communication protocol (or type Modbus communication protocol), and inside modules can be selected integrated real-time clock and temperature detecting function.
Central microprocessor adopts the ARM chip of 32 RISC, and central microprocessor adopts the STM32F103 model, has very fast data processing power, can be applied in high-performance and the high-speed environment.This wireless collection controller adopts photoelectricity to isolate between inner input-output unit and control module to the commercial Application design, has greatly reduced industry spot and has disturbed the influence to the normal operation of module, makes module have good reliability.The RS-485 communication interface that adopts band to isolate can be avoided the influence of industry spot signal to the microcontroller communication interface, and have ESD, overvoltage, overcurrent protection.The all analog quantitys and the input and output of digital quantity all are to isolate to guarantee module stability work with the light lotus root.
Interface comprises RS-232 interface, RS-485 interface, CAN interface.Operation such as the control configuration of system is fully by operation of serial-port, and the interface of communication can be selected by user oneself.
Wireless communication module adopts 2.4G/433M communication module or wireless communication module to adopt the GPRS/CDMA communication module.The wireless RTU module of native system design two covers realizes the transmission and the reception of final wireless data, and the complete transparent transmission of data that sends and receive.
The multifunction wireless acquisition controller of the utility model, rich interface is supported multi-path digital, the input of analog quantity, output, equipment cost is low, is widely used.
Description of drawings
Fig. 1 is the circuit module synoptic diagram of the utility model.
Embodiment
This acquisition controller comprises central microprocessor, power supply, wireless communication module, interface, analog quantity load module, analog output module, digital quantity input module, digital quantity output module; Central microprocessor is electrically connected with power supply, interface, analog quantity load module, analog output module, digital quantity input module, digital quantity output module respectively; Central microprocessor and wireless communication module wireless telecommunications, interface and the communication of external meters cable network.
Central microprocessor adopts the STM32F103 model.Interface comprises RS-232 interface, RS-485 interface, CAN interface.Wireless communication module adopts the 2.4G/433M communication module.Wireless communication module adopts the GPRS/CDMA communication module.
The major function of this wireless collection controller is to carry out the collection of the collection of analog quantity input signal, on-the-spot Modbus instrumented data, and sends to the center through wireless communication module.Module itself can be set to main frame and slave mode arbitrarily, and can switch wireless communication modes.Module also can directly be used RS-485 to isolate communication interface and use as wired acquisition module.Module has 4 tunnel AI differential path, and each group differential path is also configurable to be 2 tunnel single-ended input channel, to satisfy different occasion demands, is applicable to the various voltage and current signals of gathering industry spot, and sampling resolution is 12; Module also has analog quantity output, digital quantity input and digital quantity output subsidiary function.Module has 2 tunnel analog output channel, can independently control output, also can export synchronously, and output resolution ratio is 12; Module also has 8 road DI and 8 road DO passages.Module has also possessed the collection that two-way thermal resistance input interface can be realized scene temperature in addition.
Acquisition controller is realized following function:
1. the collection of in-site modeling signal
System design possesses the AD converter of isolation, directly the analog voltage/current signal (1-5V/0-10V/4-20ma) of measure field instrument, sensor and transmitter output.Can directly measure two-way two line thermal resistance signals.On communication protocol, also making the Modbus agreement, is that each road AD input all possesses independent register address, and the user just can gather the data of instrument through the Modbus agreement like this.System can be set to single-ended and the difference input pattern is accepted on-the-spot single-ended and differential analog signal respectively.
2. the data acquisition of field digital instrument
System possesses the RS-485 interface, can realize communicating by letter of RTU and on-the-spot Modbus instrument, directly can carry out reading of data through the Modbus agreement.
3. the output of the I/O of switching value
The I/O output of switching value can realize that the detection of external unit switching signal output reaches the control function to external unit; All input and output amounts are all hinted obliquely at the register for Modbus; Use the mode of reading the Modbus register to realize to the collection of input signal amount, adopt the mode of writing the Modbus register to realize the control of peripherals.
4. analog quantity output
Analog quantity output can realize the voltage and current analog quantity output, the same method of Modbus agreement that adopts designs in output control.
In industrial control process, often need the Sensor Analog Relay System amount signal of collection site, so that its analysis carried out the control of field apparatus.The analog quantity output signals of various sensor devices is different, and common have voltage signal and a current signal.This acquisition controller has 4 tunnel analog quantity difference input channels, and through configuration software, each group differential path is also configurable to be 2 tunnel single-ended input channel, also can use simultaneously.The analog input channel can gather-10V～+ 10V ,-5V～+ 5V ,-2.5V～+ voltage signal of 2.5V, the input range of voltage can pass through software setting.When gathering current signal, need an external accurate sampling resistor, convert the magnitude of voltage that records into current value then.Design the Wiring port of thermal resistance in addition at passage of analog input channel 7 and passage 8, can be used for the temperature of measure field.
Have 2 tunnel analog output channels, can be chosen as the voltage way of output or the electric current way of output.When adopting the voltage way of output, the maximum load current of each passage is 20mA, and when output overcurrent (for example output short-circuit), all AO passage outputs are undesired, and possibly cause module damage.Each AO passage synchronization can only use a kind of way of output, when selecting the voltage way of output, should guarantee do not take over what load on current output terminal of same passage; When selecting the electric current way of output, also should guarantee do not take over what load on voltage output end of same passage; Otherwise it is undesired to cause exporting, even damages module.Attention: no matter the analog output channel of module is configured to the voltage way of output or the electric current way of output; The maximum output load current of single channel is that 20mA must be in environment temperature is-40～70 ℃ of scopes; In operating ambient temperature is 71～85 ℃ of scopes; Total load current can only be 60% of rated current, promptly less than 24mA.
Claims (5)
1. multifunction wireless acquisition controller; It is characterized in that; Comprise central microprocessor, power supply, wireless communication module, interface, analog quantity load module, analog output module, digital quantity input module, digital quantity output module; Central microprocessor is electrically connected with power supply, interface, analog quantity load module, analog output module, digital quantity input module, digital quantity output module respectively; Central microprocessor and wireless communication module wireless telecommunications, interface and the communication of external meters cable network.
2. multifunction wireless acquisition controller according to claim 1 is characterized in that, central microprocessor adopts the STM32F103 model.
3. multifunction wireless acquisition controller according to claim 1 and 2 is characterized in that, interface comprises RS-232 interface, RS-485 interface, CAN interface.
4. multifunction wireless acquisition controller according to claim 1 and 2 is characterized in that, wireless communication module adopts the 2.4G/433M communication module.
5. multifunction wireless acquisition controller according to claim 1 and 2 is characterized in that, wireless communication module adopts the GPRS/CDMA communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120216855XU CN202110653U (en) | 2011-06-24 | 2011-06-24 | Multifunctional wireless acquisition controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120216855XU CN202110653U (en) | 2011-06-24 | 2011-06-24 | Multifunctional wireless acquisition controller |
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| Publication Number | Publication Date |
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| CN202110653U true CN202110653U (en) | 2012-01-11 |
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| CN201120216855XU Expired - Lifetime CN202110653U (en) | 2011-06-24 | 2011-06-24 | Multifunctional wireless acquisition controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243801A (en) * | 2011-06-24 | 2011-11-16 | 青岛高校信息产业有限公司 | Multifunctional wireless acquisition controller |
| CN103687078A (en) * | 2012-09-19 | 2014-03-26 | 青岛高校信息产业有限公司 | Ad hoc wireless remote terminal control system |
-
2011
- 2011-06-24 CN CN201120216855XU patent/CN202110653U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243801A (en) * | 2011-06-24 | 2011-11-16 | 青岛高校信息产业有限公司 | Multifunctional wireless acquisition controller |
| CN103687078A (en) * | 2012-09-19 | 2014-03-26 | 青岛高校信息产业有限公司 | Ad hoc wireless remote terminal control system |
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Legal Events
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 266071 Shandong city of Qingdao province Ningxia City Road No. 288 Patentee after: QINGDAO GAOXIAO INFORMATION INDUSTRY CORP., LTD. Address before: 266071 Shandong city of Qingdao province Ningxia City Road No. 288 Patentee before: Qingdao Gaoxiao Information Industry Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |