CN207964101U - The data collector that enhancing temperature channel utilizes - Google Patents
The data collector that enhancing temperature channel utilizes Download PDFInfo
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- CN207964101U CN207964101U CN201820383414.0U CN201820383414U CN207964101U CN 207964101 U CN207964101 U CN 207964101U CN 201820383414 U CN201820383414 U CN 201820383414U CN 207964101 U CN207964101 U CN 207964101U
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- temperature
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- data collector
- master board
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Abstract
The utility model discloses a kind of data collectors that enhancing temperature channel utilizes, including master board, and voltage plate, electric current plate, oscillating plate, digital I/O board, the temperature plate being connect with the master board；The master board includes isolation module, FPGA calculation process module and CPU calculation process module connected in sequence；Voltage plate, electric current plate, oscillating plate, digital I/O board, temperature plate are connect with isolation module；The master board further includes CPLD preprocessors, is connect with the FPGA calculation process module；The master board further includes 485 communication interfaces being connect with CPU calculation process modules, 232 serial communication interfaces, multiple network interfaces, USB interface；Wherein temperature plate includes eight temperature channels, and access No. eight temperature sensors are measured into trip temperature.
Description
Technical field
The utility model is related to data collecting system more particularly to a kind of data collectors that enhancing temperature channel utilizes.
Background technology
As being constantly progressive for society needs to ensure various resources of use that people can be healthy and safe to each
Resource provision equipment monitors in real time.For most of manufacturing business, the automatic data acquisition of measuring instrument is always an order
The thing of people's worry even if instrument has had the interfaces such as RS232/485, but still is measured using one side, is remembered by hand on one side
Paper is recorded, is finally input to the mode handled in PC again, is not only worked heavy, while can not also ensure the accuracy of data,
The data that usually administrative staff obtain have been to have lagged the data of a couple of days；And for the bad products information and correlation at scene
Yield data, how to realize that high efficiency, succinct, real-time data acquisition are even more a great problem.
Traditional temperature circuit uses bridge circuit, complicated and poor accuracy, not only wastes board resource and is fertilized again cipher telegram
The limitation of precision is hindered, that is, uses sampling A/D chip also can only one, channel chip, resources loss are very big all the way.
Utility model content
The utility model provides a kind of enhancing temperature channel utilization for the technical problem present in conventional temperature circuit board
Data collector.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of data collector for utilizing of enhancing temperature channel, including master board be provided, and with the master board
Voltage plate, electric current plate, oscillating plate, digital I/O board, the temperature plate of connection；
The master board includes isolation module, FPGA calculation process module and CPU calculation process module connected in sequence；
Voltage plate, electric current plate, oscillating plate, digital I/O board, temperature plate are connect with isolation module；
The master board further includes CPLD preprocessors, is connect with the FPGA calculation process module；
The master board further include 485 communication interfaces being connect with CPU calculation process modules, 232 serial communication interfaces,
Multiple network interfaces, USB interface；
Wherein temperature plate includes eight temperature channels, and access No. eight temperature sensors are measured into trip temperature.
Above-mentioned technical proposal is connect, the temperature plate includes multichannel multiplex switch, and each channel is all made of bridge-type matching electricity
Road.
Above-mentioned technical proposal is connect, which further includes SSD memory interfaces.
Above-mentioned technical proposal is connect, each interface of the master board is respectively connected with electrostatic condenser.
Above-mentioned technical proposal is connect, which further includes power module, is provided for the modules of data collector
Power supply.
Above-mentioned technical proposal is connect, the network interface core of the multiple network interface uses 100,000,000 rate interfaces, and is connect equipped with gigabit rate
Mouthful.
Above-mentioned technical proposal is connect, big battery is also configured in the master board.
Use the beneficial effects of the utility model：Temperature plate is on the basis of bridge circuit in the utility model data collector
Upper integration switches type circuit, can maximum multiplex circuit.The temperature plate of the utility model includes 8 temperature channels, can be connect
Enter the temperature measurement that No. eight temperature sensors carry out 8 paths, the profit of temperature channel is significantly enhanced in conjunction with the advantage of FPGA
With.
Further, each channel of bridge-type Acquisition Circuit, not only integral bridge type acquires, but also protects circuit using double
To diode, it has been effectively prevented the interference of high current, has improved the stabilization of circuit；Unilateral diode is also used in circuit, is prevented
Stop signal flows back, and the mode for using capacitor filtering is further reduced interference.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the data collector structural schematic diagram that the enhancing temperature channel of the utility model embodiment utilizes；
Fig. 2 is the single sensor acquisition channel circuit diagram of the utility model embodiment；
Fig. 3 is the acquisition multi-channel switch circuit of the utility model embodiment；
Fig. 4 is another sensor acquisition channel circuit diagram of the utility model embodiment；
Fig. 5 is the D/A converting circuit figure of the utility model embodiment.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
The board temperature plate of the utility model integration switches type circuit on the basis of bridge circuit, in conjunction with the excellent of FPGA
Gesture significantly enhances the utilization of temperature channel.
As shown in Fig. 2, for the Acquisition Circuit in the single channel of sensor, other channels are similar with this channel.The Acquisition Circuit
For three-wire system circuit, wherein 2 points of resistance is separately connected RTD1P1, RTD1P3, RATIO, which further includes protection electricity
Road, the protection circuit include bilateral diode D5 and capacitance, and protect the direct-connected the earth of circuit, by build-out resistor R1, R2, R3,
ADS1248IPW in the bridge circuit output end to Fig. 5 of R4 compositions.The protection circuit further includes bilateral diode D4 and capacitance
C5 has been effectively prevented the interference of high current, improves the stabilization of circuit；The temperature plate also uses unilateral diode D1, D2, prevents
Stop signal flows back, and the mode for using capacitor filtering is further reduced interference.The bridge-type Acquisition Circuit of the utility model it is every
One channel, not only integral bridge type acquire, but also protect that circuit does it is accurate in place, effectively reduce even isolation interference.
As shown in figure 3, the temperature plate uses TS3A5017, (4 are thrown for a kind of double monopoles four:1) analog switch is designed as
From 2.3V to 3.6V.The data collector of the utility model can handle digital signal and analog signal simultaneously, and can be sent out to V+
The number of delivering letters, while coordinating FPGA calculation process module 36 so that processing is more efficiently convenient.TS3A5017 makees in the utility model
Include four tunnels in total for multichannel multiplex switch, chips are controlled by MCU, eight tunnel temperature channels, two chips, that is, controllable
System, such precision resistance control section only need all the way can flexmux, save the use space of circuit to greatest extent, improve
Service efficiency.
Fig. 4 is the sensor Acquisition Circuit in another channel, and the input of this circuit is the third root of three-wire system resistance temperature measurement circuit
Line compensating line, bilateral diode D21, capacitance C27 compose in parallel protection circuit, and one end is directly connected to the earth.Resistance R17,
R18, R19, R20, R21, R39 form bridge-type match circuit, and wherein R19 is 2K one thousandth precision resistances, ensures the number of acquisition
Value is accurate, the ADS1248IPW of output end to Fig. 5.
Fig. 5 is analog-digital converter, is responsible for the Data Integration by Fig. 2, Fig. 4 and is converted into digital quantity, and the multiplexing of control figure 3
Switch, output are conveyed to MCU processing in a manner of spi bus.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (7)
1. a kind of data collector for utilizing of enhancing temperature channel, which is characterized in that including master board, and with the master control
Voltage plate, electric current plate, oscillating plate, digital I/O board, the temperature plate of making sheet connection；
The master board includes isolation module, FPGA calculation process module and CPU calculation process module connected in sequence；Voltage
Plate, electric current plate, oscillating plate, digital I/O board, temperature plate are connect with isolation module；
The master board further includes CPLD preprocessors, is connect with the FPGA calculation process module；
The master board further includes 485 communication interfaces being connect with CPU calculation process modules, 232 serial communication interfaces, multiple
Network interface, USB interface；
Wherein temperature plate includes eight temperature channels, and access No. eight temperature sensors are measured into trip temperature.
2. the data collector that enhancing temperature channel according to claim 1 utilizes, which is characterized in that the temperature plate packet
Multichannel multiplex switch is included, each channel is all made of bridge-type match circuit.
3. the data collector that enhancing temperature channel according to claim 1 utilizes, which is characterized in that the master board is also
Including SSD memory interfaces.
4. the data collector that enhancing temperature channel according to claim 1 utilizes, which is characterized in that the master board
Each interface be respectively connected with electrostatic condenser.
5. the data collector that enhancing temperature channel according to claim 1 utilizes, which is characterized in that the data collector
Further include power module, power supply is provided for the modules of data collector.
6. the data collector that enhancing temperature channel according to claim 1 utilizes, which is characterized in that the multiple network interface
Network interface core use 100,000,000 rate interfaces, and be furnished with gigabit rate interface.
7. the data collector that enhancing temperature channel according to claim 1 utilizes, which is characterized in that the master board
In be also configured with big battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820383414.0U CN207964101U (en) | 2018-03-20 | 2018-03-20 | The data collector that enhancing temperature channel utilizes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820383414.0U CN207964101U (en) | 2018-03-20 | 2018-03-20 | The data collector that enhancing temperature channel utilizes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964101U true CN207964101U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820383414.0U Active CN207964101U (en) | 2018-03-20 | 2018-03-20 | The data collector that enhancing temperature channel utilizes |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907050A (en) * | 2019-12-06 | 2020-03-24 | 天津瑞能电气有限公司 | Temperature measuring device |
-
2018
- 2018-03-20 CN CN201820383414.0U patent/CN207964101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907050A (en) * | 2019-12-06 | 2020-03-24 | 天津瑞能电气有限公司 | Temperature measuring device |
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