CN208270992U - intelligent network sensor device - Google Patents
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- CN208270992U CN208270992U CN201820852511.XU CN201820852511U CN208270992U CN 208270992 U CN208270992 U CN 208270992U CN 201820852511 U CN201820852511 U CN 201820852511U CN 208270992 U CN208270992 U CN 208270992U
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Abstract
The utility model discloses an intelligent network sensor device, which comprises a sensor body, wherein the sensor body comprises a temperature acquisition chip, a standard signal acquisition circuit, a digital-to-analog conversion chip, a RS-485 differential drive chip, a power module and a photoelectric isolation chip; the temperature acquisition chip is used for acquiring the resistance values of platinum resistors of different types; the standard signal acquisition circuit is used for acquiring standard direct current/voltage signals, such as 4-20mA or 1-5V direct current input signals; the digital-to-analog conversion chip is used for converting the analog signal into a digital signal; the photoelectric isolation chip adopts a double-channel digital isolator, can realize level conversion and can well isolate input and output electric signals; the sensor body also comprises a spare resistance interface and a spare direct current interface, and in field operation, if a certain path of interface is damaged, the sensor body can replace an input connecting line of a signal to a spare terminal, so that field production can be quickly recovered.
Description
Technical field
The utility model relates to sensor technical fields, specially intelligent network sensor device.
Background technique
Sensor is widely used in industrial automation, agricultural modernization, space technology, military engineering, robot technology etc.
Multiple fields, but the common problems are that the analog signals type of current sensor device having access to is single,
And be it is fixed, that is, the terminal for connecing voltage cannot access electric current, access the interface of PT100 resistance temperature detector not
PT1000 resistance temperature detector can be connected, traditional sensor does not have communication interface, the adaptive function of sensor generally
Can be poor, do not have configuration configuration or programing function.Ordinary sensors do not set signal acquisition spare interface generally, certain interface event all the way
When barrier, sensor is needed replacing, the configuration feature of new terminal is connected without change.This patent carries out skill for disadvantages described above
Art reform.
Utility model content
In view of this, temperature can be passed through the purpose of this utility model is to provide a kind of intelligent network sensor device
Acquisition chip acquires the resistance value of the platinum resistance of different model, can also acquire standard direct current by standard signal Acquisition Circuit
Stream/voltage signal, and including spare resistance interface and spare DC quantity interface, it can fast quick-recovery when interface is damaged
Production.
The utility model solves its technical problem and adopts the following technical solutions to achieve:
Intelligent network sensor device, including sensor body, the sensor body include:
Temperature acquisition chip, the resistance value of the platinum resistance for acquiring different model；
Standard signal Acquisition Circuit, for acquiring standard DC current/voltage signal；
Analog-digital chip, for converting digital signal for analog signal；
Photoelectric isolated chip can be realized level conversion using two-channel digital isolator, and can be to input, output electricity
Signal plays good buffer action；
RS-485 differential driving chip forms automatic network management system for communicating with master device and slave station equipment
System；
Chip is controlled, shows signal collected specific value, and control RS-485 difference for controlling LCD display
Driving chip is transmitted to master device for signal collected；
Power module, for providing electric energy to sensor body；
LCD display, for displays temperature value or standard DC current/voltage signal corresponding physical quantity numerical value；
The output end of the temperature acquisition chip and the output end of standard signal Acquisition Circuit with analog-digital chip
Input terminal is connected, and the output end of the analog-digital chip is connected with the input terminal of photoelectric isolated chip, the Phototube Coupling core
Piece respectively with control chip and RS-485 differential driving chip be connected, the power module respectively with control chip, Phototube Coupling
Chip, analog-digital chip, standard signal Acquisition Circuit, temperature acquisition chip are connected with RS-485 differential driving chip, above
All connections are to be electrical connected；
The sensor body further includes LCD display, by keyboard, resistance interface, spare resistance interface, DC quantity
Interface, spare DC quantity interface, power interface and communication interface, the LCD display are set to the top of sensor body, institute
The lower section for being set to LCD display by keyboard is stated, and presses keyboard and LCD display and is connected with control chip, the resistance
Interface, spare resistance interface, DC quantity interface, spare DC quantity interface and communication interface are arranged at the outer of sensor body
It encloses, the resistance interface and spare resistance interface are connected with temperature acquisition chip, the DC quantity interface and spare straight
Traffic interface is connected with standard signal Acquisition Circuit, and the communication interface is connected with RS-485 differential driving chip, the electricity
Source interface is connected with power module.
Preferably, described by keyboard includes upper and lower, left and right, Ent and Esc six press keys.
Preferably, the model STM32F103VCT6 of the control chip.
Preferably, the model ADuM1201 of the photoelectric isolated chip.
Preferably, the model MAX31865 of the temperature acquisition chip.
Preferably, the communication interface includes COM1 communication interface and COM2 communication interface.
Preferably, the model SN65LBC184 of the RS-485 differential driving chip.
Preferably, the model ADuM1201 of the photoelectric isolated chip.
Preferably, the model URA2405_ZP-6WR3 of the power module.
Preferably, the model AD7799 of the analog-digital chip.
Compared with prior art, the utility model embodiment brings following the utility model has the advantages that the utility model discloses one
Kind of intelligent network sensor device, including sensor body, the sensor body include that temperature acquisition chip, standard signal are adopted
Collector, analog-digital chip, RS-485 differential driving chip and photoelectric isolated chip, the temperature acquisition chip is for acquiring
The resistance value of the platinum resistance of different model, resistance interface 4 or spare resistance interface 5 can access PT100 Resistance Temperature
Sensor or access PT1000 resistance temperature detector, the standard signal Acquisition Circuit is for acquiring standard direct current
Stream/voltage signal is standard DC current/voltage signal all the sensors, normalized current letter suitable for acquiring output signal
Number and standard voltage signal can access DC quantity interface 6 or spare DC quantity interface 7, reduce the quantity of interface in this way,
Staff is avoided at the scene in use process it is possible that the case where wiring error.The photoelectric isolated chip uses
ADUM120 series two-channel digital isolator, can not only realize level conversion, the mould after analog-digital chip being converted
Quasi- signal amplifies, and can play good buffer action to the electric signal of input, output, and sensor body has
For RS485 from using the communication interface of baud rate, the communication interface includes COM1 communication interface and COM2 communication interface, can be with
It is electrical connected with master device or slave station equipment and forms Automatic Network Management System, report fault point information, pass through configuration
Configuration or onsite user are programmed, and convenient for users to use and debugging maintenance is asked to the Solve on site of maintenance engineering personnel
Topic is brought convenience, while also improving production efficiency；During sensor body is run at the scene, if interface damages all the way for certain, pass
Sensor ontology can replace the input link of signal onto spare terminal, automatic corresponding in such a way that menu configures
Original signal type, enables scene quickly to resume production.
Detailed description of the invention
Fig. 1 is the circuit connection block diagram of the utility model intelligent network sensor device；
Fig. 2 is the structural schematic diagram of the utility model intelligent network sensor device；
Fig. 3 is the circuit diagram that chip is controlled in the utility model；
Fig. 4 is the circuit diagram of the utility model Plays signal acquisition circuit；
Fig. 5 is the circuit diagram of temperature acquisition chip in the utility model；
Fig. 6 is the circuit diagram of analog-digital chip in the utility model；
Fig. 7 is the circuit diagram of photoelectric isolated chip in the utility model；
Fig. 8 is the circuit diagram of U1 chip in RS-485 differential driving chip in the utility model；
Fig. 9 is the circuit diagram of U2 chip in RS-485 differential driving chip in the utility model；
Figure 10 is platinum resistance three-wire connection schematic diagram in the utility model；
Figure 11 is the circuit diagram of LCD display in the utility model.
In figure: 1, sensor body；2, LCD display；3, keyboard is pressed；4, resistance interface；5, spare resistance interface；
6, DC quantity interface；7, spare DC quantity interface；8, COM1 communication interface；9, COM2 communication interface；10, power interface；11, it controls
Coremaking piece；12, photoelectric isolated chip；13, analog-digital chip；14, temperature acquisition chip；15, standard signal Acquisition Circuit；
16, RS-485 differential driving chip；17, power module.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-11 is please referred to, a kind of embodiment provided by the utility model:
A kind of intelligent network sensor device, including sensor body 1, the sensor body 1 include temperature acquisition core
Piece 14, standard signal Acquisition Circuit 15, analog-digital chip 13, RS-485 differential driving chip 16, power module 17 and photoelectricity
Isolating chip 12；The temperature acquisition chip 14, the resistance value of the platinum resistance for acquiring different model, i.e., resistance interface 4 or
Spare resistance interface 5 can access PT100 resistance temperature detector or access PT1000 resistance temperature detector；
The standard signal Acquisition Circuit 15 is for acquiring standard DC current/voltage signal, as 4-20mA or 1-5V DC quantity inputs
Signal is standard DC current/voltage signal all the sensors suitable for acquiring output signal, such as pressure sensor, flow
Sensor, liquid level sensor；Standard current signal and standard voltage signal can access DC quantity interface 6 or spare DC quantity
Interface 7 reduces the quantity of interface in this way, avoids staff at the scene in use process it is possible that wiring error
Situation；The analog-digital chip 13, for converting digital signal for analog signal；The photoelectric isolated chip 12 uses
Two-channel digital isolator can be realized level conversion, and can play good buffer action to input, output electric signal；Institute
RS-485 differential driving chip 16 is stated, forms Automatic Network Management System for communicating with master device or slave station equipment；
The LCD display 2, for displays temperature value or standard DC current/voltage signal corresponding physical quantity numerical value；The electricity
Source module 17, for providing electric energy to sensor body 1；Wherein the output end of the temperature acquisition chip 14 and standard signal are adopted
The output end of collector 15 is connected with the input terminal of analog-digital chip 13, the output end and light of the analog-digital chip 13
The input terminal for being electrically isolated chip 12 is connected, the photoelectric isolated chip 12 respectively with control chip 11 and RS-485 differential driving core
Piece 16 is connected, and the power module 17 is believed with control chip 11, photoelectric isolated chip 12, analog-digital chip 13, standard respectively
Number Acquisition Circuit 15, temperature acquisition chip 14 and RS-485 differential driving chip 16 are connected to its and provide electric energy, all of above company
Connect is to be electrical connected.The sensor body 1 further includes LCD display 2, by keyboard 3, resistance interface 4, spare resistance
Interface 5, DC quantity interface 6, spare DC quantity interface 7, power interface 10 and communication interface, it is described to be used to that LCD is arranged by keyboard 3
Shown parameter, the resistance interface 4, spare resistance interface 5, DC quantity interface 6, spare DC quantity on display screen 2
Interface 7 and communication interface are arranged at the periphery of sensor body 1, the resistance interface 4 and spare resistance interface 5 with
Temperature acquisition chip 14 is connected, the DC quantity interface 6 and spare DC quantity interface 7 with 15 phase of standard signal Acquisition Circuit
Even, communication interface is connected with RS-485 differential driving chip 16, and the communication interface includes COM1 communication interface 8 and COM2 communication
Interface 9 can be electrical connected with master device or slave station equipment and form Automatic Network Management System, report fault point letter
Breath is programmed by configuration configuration or onsite user, convenient for users to use and debugging, for maintenance personnel to Solve on site
Problem is brought convenience, while also improving production efficiency.The power interface 10 is connected with power module 17, for sensor
Ontology 1 provides electric energy.Since sensor body 1 is provided with spare resistance interface 5 and spare DC quantity interface 7, therefore sensor
Ontology 1 in operational process, if resistance interface 4 or DC quantity interface 6 are damaged, the input of signal can be connected at the scene
In line replacement to corresponding spare resistance interface 5 or spare 7 spare interface of DC quantity interface, then matched by menu
The mode set corresponds to original signal type, node type, circuit number automatically, so that scene be enable quickly to resume production.
The LCD display 2 is set to the top of sensor body 1, the lower section that LCD display 2 is set to by keyboard 3, and presses
Keyboard 3 and LCD display 2 are connected with control chip 11, it is described press keyboard 3 including upper and lower, left and right, Ent and Esc six by
Key, by " ▲ ", " ▼ ",It is selected, enters the selection interface by " Ent ", press " Esc " key, cancel ginseng
Number modification.The LCD display 2 is equipped with real time data and register value menu option, and " real time data " is current voltage value
Or present current value or current temperature value, it is corresponding with the road number of register deposit, it is specially temperature according to the type of input signal
Degree, current or voltage, unit be correspondingly arranged for DEG C, A or V.The register value is to be stored in corresponding road number value, resistance interface
4, road number corresponding to spare resistance interface 5, DC quantity interface 6 and spare DC quantity interface 7 is respectively 1,2,3 and 4, each
A " register " corresponding " road number " can configure, and convenient at certain, analog interface failure or corresponding interface position are sent out all the way
It is configured when changing, scene is enable quickly to resume production.
Specific implementation: the concrete model of RS-485 differential driving chip 16 used by the present embodiment is SN65LBC184,
The concrete model of photoelectric isolated chip 12 is ADuM1201, and the concrete model of power module 17 is URA2405_ZP-6WR3, digital-to-analogue
The concrete model of conversion chip 13 is AD7799, and the concrete model of temperature acquisition chip 14 is MAX31865, control chip 11
Concrete model is STM32F103VCT6.Concrete operations are to be electrified to sensor body 1, in resistance interface 4, standby electricity
Resistance amount interface 5, the signal of DC quantity interface 6 or the access of spare DC quantity interface 7 with measurement, are then arranged on LCD display 2
Parameter is corresponded to well and carries out parameter observation.Wherein the concrete operations of 2 parameter setting of LCD display are as follows:
Browsing: the parameter item for choosing needs to browse presses " Ent " key, into menu, can by " ▲ ", " ▼ ",It is browsed.
Setting: " Ent " key is pressed again in browse state, into Password Input state, after inputting correct password, at parameter
In " flashing " state, press " Ent " key again, which enters " anti-aobvious " state, by " ▲ ", " ▼ ",Into
Row parameter selection, modification.
" Ent " key is pressed after the completion of modification, parameter is automatically stored, and can carry out next parameter modification；
" Esc " key is pressed during modification, is cancelled parameter modification, is restored the original value of the parameter.
The real time data of measurement can be transferred to master device via communication interface by RS-485 differential driving chip 16.
When 7 external connection flow sensor of DC quantity interface 6 or spare DC quantity interface, and flow sensor output end is
When the current signal of 4-20mA, which first passes around standard signal Acquisition Circuit 15 and carries out voltage conversion, then passes through
The analog signal is converted to digital signal by analog-digital chip 13, by the number after photoelectric isolated chip 12 is isolated
Signal sends control chip 11 to, and controlling inside chip 11 has specific program, which can be carried out processing conversion
It for flow value, controls chip 11 and controls LCD display 2 and show the flow value, while controlling the control of chip 11 can also be with
The flow value is sent to master device by RS-485 differential driving chip；When DC quantity interface 6 or spare DC quantity interface 7
When external connection pressure sensor, control chip 11 connects master device, master device energy by RS-485 differential driving chip
Enough specific programs to control 11 burning processing pressure sensor signal of chip, after the complete program of burning, so that it may according to processing
The process of flow sensor signal carries out identical processing to pressure sensor signal.
Working principle: referring to Fig. 4, the DC quantity signal collected of sensor body 1, including standard voltage signal and mark
Quasi- current signal, standard voltage signal can receive the signal of 0-5V, 1-5V, and standard current signal can receive 0-20mA, 4-
The signal of 20mA, standard current signal and standard voltage signal can access DC quantity interface 6 or spare DC quantity interface 7,
The standard signal Acquisition Circuit 15 includes resistance 1R1, resistance 1R2 and capacitor 1C3, wherein standard voltage signal or normalized current
Signal is inputted from the left end of resistance 1R1, and I1 is current signal, and V1 is voltage signal, when connecting current signal I1, electric current letter
Number I1 is inputted from the left end of resistance 1R1, is then converted to voltage signal by resistance 1R2；When input signal is voltage signal V1
When, voltage signal V1 is inputted from the left end of 1R1, is divided by resistance 1R1 and resistance 1R2, voltage signal is obtained, due to electricity
It is fixed for hindering the resistance value of 1R1 and resistance 1R2, therefore can deduce the size of acquisition signal.Voltage signal is converted by resistance 1R3
At current signal, which is filtered by capacitor 1C1, and filtered signal is carried out by Transient Suppression Diode T1
Protection carries out amplitude limitation using the amplitude limiter circuit D1 being made of two zener diode reverse parallel connections, finally through overvoltage
Follow circuit, voltage follower circuit is made of operational amplifier U10A and resistance 1R4 and capacitor 1C2, carry out buffering and every
From effect；Signal S1 is converted by voltage follower circuit, then pressure stabilizing is carried out by capacitor 1C3, and final signal S1 is from capacitor 1C3
Upper end output, into analog-digital chip 13；Analog-digital chip 13 by S1 signal be converted into digital quantity send to photoelectricity every
Off-chip piece 12, photoelectric isolated chip 12, which amplifies the digital quantity signal, sends control chip 11 to, while Phototube Coupling core
Also the input terminal for controlling chip 11 is isolated for piece 12, and the signal of the amplification is carried out data processing by control chip 11, so
Control LCD display 2 shows that signal collected specific value, and control RS-485 differential driving chip will acquire letter afterwards
Number master device is transmitted to by COM1 communication interface 8 or COM2 communication interface 9；Wherein it can control LCD display by keyboard 3
2 are shown the numerical value of the physical quantity corresponding with which interface in spare DC quantity interface 7 of DC quantity interface 6.
Fig. 5 and 11 are please referred to, the signal acquisition of resistance uses the three-wire system mode of connection, and Rcable1 is used for temperature-compensating,
Rcable2, Rcable3 are used for connection thermal resistor RTD, can be PT100 thermal resistance, or PT1000 thermal resistance；Due to
Using the connection type of three-wire system, therefore influence of the conducting wire to thermal resistance signal is reduced.The temperature acquisition chip 14, is used for
The resistance value of acquisition PT100 thermal resistance or PT1000 thermal resistance simultaneously converts thereof into temperature value, then passes the temperature value after conversion
Give analog-digital chip 13；The temperature signal is converted into digital quantity and sends photoelectric isolated chip to by analog-digital chip 13
12, photoelectric isolated chip 12, which amplifies the digital quantity signal, sends control chip 11 to, while photoelectric isolated chip 12
The input terminal for controlling chip 11 is isolated, the signal of the amplification is carried out data processing by control chip 11, is then controlled
LCD display 2 shows that signal collected specific value, and control RS-485 differential driving chip pass through signal collected
COM1 communication interface 8 or COM2 communication interface 9 are transmitted to master device；It wherein can control LCD display 2 by keyboard 3 to show
Be the physical quantity corresponding with which interface in spare resistance interface 5 of resistance interface 4 numerical value.
The upper end of the capacitor 1C3 of the pin 7 and standard signal Acquisition Circuit 15 of the analog-digital chip 13 is connected, pin
1 and 2 are connected with the end SCLK and CS of temperature acquisition chip 14 respectively, and pin 15 and 16 respectively with photoelectric isolated chip 12 6
Pin and 7 pins are connected；2 pins and 3 pins of the photoelectric isolated chip 12 respectively with control chip 11 51 pins and 52
Pin is connected；Analog-digital chip 13 acquires the collected temperature of temperature acquisition chip 14 and standard signal Acquisition Circuit 15
To electric current and voltage these analog signals be converted into digital signal, send photoelectric isolated chip 12, photoelectric isolated chip 12 to
Have the function of for the input terminal for controlling chip 11 being isolated with other circuits, to improve the processing data of control chip 11
Precision, while photoelectric isolated chip 12 also have the function of by digital signal amplify, avoid input signal is too faint from leading to letter
Number acquisition inaccuracy, to improve the accuracy of signal acquisition.
The RS-485 differential driving chip 16 includes U1 chip and U2 chip, and 2 pins and 3 pins of the U1 chip are short
Connect, and 3 pins of U1 chip and 4 pins respectively with control chip 11 25 pins and 26 pins be connected, 6 pins of U1 chip with
7 pins are connected with COM1 communication interface；2 pins of the U2 chip and 3 pins are shorted, and 3 pins and 4 pins of U2 chip
Respectively with control chip 11 68 pins and 69 pins be connected, 6 pins and 7 pins of U2 chip with COM2 communication interface phase
Even；COM1 communication interface and COM2 communication interface can be electrical connected with master device or slave station equipment and form automation net
Network management system reports fault point information, is programmed by configuration configuration or onsite user, convenient for users to use and tune
Examination brings convenience to Solve on site problem for maintenance personnel, while also improving production efficiency.
It is described press keyboard 3 include upper and lower, left and right, Ent and Esc six press keys, successively with control chip 16 77 pins,
35 pins, 36 pins, 89 pins, 90 pins and 91 pins are connected；
The pin of the LCD display 2 from top to bottom respectively with control chip 16 61 pins, 62 pins, 38 pins, 39
Pin, 40 pins, 41 pins and 42 pins are connected.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be wanted with the right
Subject to the protection scope asked.
Claims (9)
1. a kind of intelligent network sensor device, including sensor body (1), it is characterised in that: sensor body (1) packet
It includes:
Temperature acquisition chip (14), the resistance value of the platinum resistance for acquiring different model；
Standard signal Acquisition Circuit (15), for acquiring standard DC current/voltage signal；
Analog-digital chip (13), for converting digital signal for analog signal；
Photoelectric isolated chip (12) can be realized level conversion using two-channel digital isolator, and can be to input, output electricity
Signal plays buffer action；
RS-485 differential driving chip (16) forms automatic network management system for communicating with master device and slave station equipment
System；
It controls chip (11), shows signal collected specific value, and control RS-485 for controlling LCD display (2)
Differential driving chip (16) is transmitted to master device for signal collected；
Power module (17), for providing electric energy to sensor body (1)；
LCD display (2), for displays temperature value or standard DC current/voltage signal corresponding physical quantity numerical value；
The output end of the temperature acquisition chip (14) and the output end of standard signal Acquisition Circuit (15) with digital-to-analogue conversion core
The input terminal of piece (13) is connected, the input terminal phase of the output end and photoelectric isolated chip (12) of the analog-digital chip (13)
Even, the photoelectric isolated chip (12) is connected with control chip (11) and RS-485 differential driving chip (16) respectively, the electricity
Source module (17) is electric with control chip (11), photoelectric isolated chip (12), analog-digital chip (13), standard signal acquisition respectively
Road (15), temperature acquisition chip (14) are connected with RS-485 differential driving chip (16), and all of above connection is to be electrical connected；
The sensor body (1) further includes LCD display (2), connects by keyboard (3), resistance interface (4), spare resistance
Mouth (5), DC quantity interface (6), spare DC quantity interface (7), power interface (10) and communication interface, the LCD display (2)
Be set to the top of sensor body (1), it is described to be set to the lower section of LCD display (2) by keyboard (3), and press keyboard (3) and
LCD display screen (2) is connected with control chip (11), the resistance interface (4), spare resistance interface (5), DC quantity
Interface (6), spare DC quantity interface (7) and communication interface are arranged at the periphery of sensor body (1), the resistance interface
(4) it is connected with temperature acquisition chip (14) with spare resistance interface (5), the DC quantity interface (6) and spare DC quantity
Interface (7) is connected with standard signal Acquisition Circuit (15), and the communication interface is connected with RS-485 differential driving chip (16),
The power interface (10) is connected with power module (17).
2. intelligent network sensor device according to claim 1, it is characterised in that: it is described by keyboard (3) include it is upper,
Under, left and right, Ent and Esc six press keys.
3. intelligent network sensor device according to claim 1, it is characterised in that: the model of control chip (11)
For STM32F103VCT6.
4. intelligent network sensor device according to claim 1, it is characterised in that: the photoelectric isolated chip (12)
Model ADuM1201.
5. intelligent network sensor device according to claim 1, it is characterised in that: the temperature acquisition chip (14)
Model MAX31865.
6. intelligent network sensor device according to claim 1, it is characterised in that: the communication interface includes COM1 logical
Communication interface (8) and COM2 communication interface (9).
7. intelligent network sensor device according to claim 1, it is characterised in that the RS-485 differential driving chip
(16) model SN65LBC184.
8. intelligent network sensor device according to claim 1, it is characterised in that: the model of the power module (17)
For URA2405_ZP-6WR3.
9. intelligent network sensor device according to claim 1, it is characterised in that: the analog-digital chip (13)
Model AD7799.
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| CN201820852511.XU CN208270992U (en) | 2018-06-04 | 2018-06-04 | intelligent network sensor device |
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| CN201820852511.XU CN208270992U (en) | 2018-06-04 | 2018-06-04 | intelligent network sensor device |
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| CN114564414A (en) * | 2022-04-28 | 2022-05-31 | 武汉慧联无限科技有限公司 | Debugging method, device and storage medium |
| CN114999147A (en) * | 2022-05-10 | 2022-09-02 | 深圳市易智博网络科技有限公司 | Wisdom city camera control system of low-power consumption |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011887A (en) * | 2019-04-01 | 2019-07-12 | 中北大学 | A kind of data transmission system based on picogram bus |
| CN114564414A (en) * | 2022-04-28 | 2022-05-31 | 武汉慧联无限科技有限公司 | Debugging method, device and storage medium |
| CN114999147A (en) * | 2022-05-10 | 2022-09-02 | 深圳市易智博网络科技有限公司 | Wisdom city camera control system of low-power consumption |
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